/* ================================================
   GEO优化系统 - 公共样式库 common.css
   所有页面引用此文件，请勿在页面内重复定义基础样式
   ================================================ */

/* ── CSS变量 ── */
:root {
  color-scheme: light;
  /* 品牌色 */
  --primary:       #1ea7ff;
  --primary-dark:  #0b8be6;
  --primary-light: rgba(30, 167, 255, .12);
  --primary-strong:#0077ff;
  --accent:        #30d8ff;
  --accent-dark:   #16bfd9;
  --purple:        #6f7dff;
  --purple-dark:   #5363f6;
  --purple-light:  rgba(111, 125, 255, .12);
  --teal:          #4ce3d3;

  /* 语义色 */
  --success:       #22c55e;
  --success-bg:    rgba(34,197,94,.14);
  --warning:       #f59e0b;
  --warning-bg:    rgba(245,158,11,.16);
  --danger:        #ef4444;
  --danger-bg:     rgba(239,68,68,.14);

  /* 中性色 */
  --bg:            #e9f1fb;
  --bg-2:          #dfe9f8;
  --bg-3:          #f4f8fd;
  --card:          rgba(255,255,255,.78);
  --card-strong:   rgba(255,255,255,.92);
  --card-solid:    #ffffff;
  --text:          #13233d;
  --text-2:        #28415f;
  --text-3:        #59708d;
  --text-4:        #8ca0b8;
  --border:        rgba(132, 160, 194, .26);
  --border-2:      rgba(132, 160, 194, .14);
  --glass-line:    rgba(255,255,255,.65);
  --glow:          rgba(30,167,255,.22);
  --surface-soft:  #f8fafc;
  --surface-muted: #eef4fb;
  --surface-ghost: rgba(255,255,255,.56);
  --surface-dashed:#fafbfc;

  /* 侧边栏 */
  --sidebar-bg:    linear-gradient(180deg, #081120 0%, #0c1830 38%, #0b1528 100%);
  --sidebar-text:  #96aac7;
  --sidebar-active:#eaf6ff;
  --sidebar-w:     240px;

  /* 尺寸 */
  --topbar-h:      52px;
  --r:             16px;
  --r-sm:          6px;
  --r-lg:          22px;

  /* 阴影 */
  --shadow-sm:     0 8px 24px rgba(21, 53, 96, .08);
  --shadow-md:     0 18px 42px rgba(17, 46, 86, .12);
  --shadow-lg:     0 28px 60px rgba(7, 24, 54, .18);
  --shadow-glow:   0 0 0 1px rgba(255,255,255,.5), 0 14px 40px rgba(30,167,255,.10);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --primary:       #46b7ff;
  --primary-dark:  #239eea;
  --primary-light: rgba(70,183,255,.16);
  --primary-strong:#0ea5ff;
  --accent:        #4de1ff;
  --accent-dark:   #22c9e6;
  --purple:        #7f89ff;
  --purple-dark:   #6b74f7;
  --purple-light:  rgba(127,137,255,.16);
  --teal:          #53ebdb;
  --success:       #33d17a;
  --success-bg:    rgba(51,209,122,.16);
  --warning:       #ffb547;
  --warning-bg:    rgba(255,181,71,.18);
  --danger:        #ff6b7c;
  --danger-bg:     rgba(255,107,124,.18);
  --bg:            #101722;
  --bg-2:          #141c28;
  --bg-3:          #182130;
  --card:          rgba(22, 30, 42, .86);
  --card-strong:   rgba(22, 30, 42, .94);
  --card-solid:    #1a2332;
  --text:          #eef6ff;
  --text-2:        #c3d5eb;
  --text-3:        #8fa7c4;
  --text-4:        #6a85a5;
  --border:        rgba(133, 151, 174, .18);
  --border-2:      rgba(133, 151, 174, .10);
  --glass-line:    rgba(255,255,255,.07);
  --glow:          rgba(70,183,255,.08);
  --surface-soft:  #1d2735;
  --surface-muted: #202c3d;
  --surface-ghost: rgba(255,255,255,.05);
  --surface-dashed:#182332;
  --sidebar-bg:    linear-gradient(180deg, #111925 0%, #121a28 40%, #101824 100%);
  --sidebar-text:  #8fa7c4;
  --sidebar-active:#f2f8ff;
  --shadow-sm:     0 10px 28px rgba(0,0,0,.25);
  --shadow-md:     0 18px 48px rgba(0,0,0,.32);
  --shadow-lg:     0 30px 72px rgba(0,0,0,.42);
  --shadow-glow:   0 0 0 1px rgba(255,255,255,.04), 0 16px 40px rgba(0,0,0,.34), 0 0 32px rgba(70,183,255,.08);
  --dark-pill-bg: linear-gradient(180deg, rgba(18, 31, 48, .92), rgba(13, 24, 39, .86));
  --dark-pill-hover: linear-gradient(180deg, rgba(23, 40, 61, .96), rgba(15, 29, 47, .9));
  --dark-pill-border: rgba(94, 124, 160, .24);
  --dark-pill-border-strong: rgba(86, 180, 255, .34);
}

/* ── 重置 ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; width: 100%; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  height: 100vh;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  position: relative;
  background-image:
    radial-gradient(circle at 14% 18%, rgba(30,167,255,.18), transparent 25%),
    radial-gradient(circle at 86% 12%, rgba(76,227,211,.12), transparent 22%),
    radial-gradient(circle at 70% 82%, rgba(111,125,255,.12), transparent 22%),
    linear-gradient(180deg, var(--bg-3) 0%, var(--bg) 48%, var(--bg-2) 100%);
}

:root[data-theme="dark"] body {
  background-image:
    radial-gradient(circle at 14% 18%, rgba(70,183,255,.05), transparent 24%),
    radial-gradient(circle at 86% 12%, rgba(76,227,211,.03), transparent 18%),
    radial-gradient(circle at 70% 82%, rgba(111,125,255,.03), transparent 18%),
    linear-gradient(180deg, #161f2d 0%, #121925 48%, #151d29 100%);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: .35;
  mix-blend-mode: soft-light;
}

:root[data-theme="dark"] body::before {
  opacity: .08;
}

/* ── iframe 模式适配 ── */
.is-iframe body {
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    background: transparent !important;
    background-image: none !important;
}
.is-iframe body::before {
  display: none !important;
}
.is-iframe .sidebar,
.is-iframe .topbar {
  display: none !important;
}
.is-iframe .main {
  margin-left: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  padding-top: 0 !important;
  width: 100% !important;
  max-width: 100% !important;
  flex: 1 !important;
}
.is-iframe .content {
    margin: 0 !important;
    padding: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
}
.is-iframe .content > *:first-child {
  margin-top: 0 !important;
}
.is-iframe .content > *:last-child {
  margin-bottom: 0 !important;
}
a { text-decoration: none; color: inherit; }
button, input, select, textarea { font-family: inherit; }
img { max-width: 100%; display: block; }

/* ════════════════════════════════════════
   侧边栏
   ════════════════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  height: 100vh;
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0;
  z-index: 200;
  flex-shrink: 0;
  border-right: 1px solid rgba(255,255,255,.06);
  box-shadow: 18px 0 40px rgba(0,0,0,.18);
  overflow: hidden;
}

.sidebar::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 8%, rgba(70,183,255,.22), transparent 28%),
    linear-gradient(180deg, rgba(255,255,255,.05), transparent 22%);
}

.sidebar-logo {
  padding: 18px 18px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  flex-shrink: 0;
  position: relative;
  backdrop-filter: blur(10px);
}

.logo-icon {
  width: 50px; height: 50px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.22), rgba(255,255,255,.04)),
    linear-gradient(135deg, #2bc4ff, #5c7cff 58%, #23dfd2);
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; color: #fff; font-size: 17px;
  flex-shrink: 0;
  box-shadow: 0 14px 28px rgba(18, 136, 226, .28);
  border: 1px solid rgba(255,255,255,.18);
}

.logo-text {
  color: #f3f8ff;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .02em;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px 18px;
  overflow-y: auto;
}
.sidebar-nav::-webkit-scrollbar { width: 3px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 2px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  color: var(--sidebar-text);
  cursor: pointer;
  transition: all .18s ease;
  border-left: 3px solid transparent;
  font-size: 15px;
  position: relative;
  border-radius: 14px;
  margin-bottom: 6px;
  background: transparent;
}
.nav-item:hover {
  background: linear-gradient(90deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  color: #dbe9fa;
}
.nav-item.active {
  background: linear-gradient(90deg, rgba(30,167,255,.18), rgba(30,167,255,.05));
  color: var(--sidebar-active);
  border-left-color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.06), 0 10px 26px rgba(5, 16, 35, .22);
}
.nav-icon {
  font-size: 16px;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
  color: var(--primary);
}
.nav-icon .fa { width: 22px; text-align: center; }

/* ════════════════════════════════════════
   主布局
   ════════════════════════════════════════ */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  min-width: 0;
}

/* ── 顶部栏 ── */
.topbar {
  background: linear-gradient(180deg, rgba(255,255,255,.4), rgba(255,255,255,.16));
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  gap: 10px;
  backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 rgba(255,255,255,.35) inset;
}
.topbar-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
}
.topbar-right { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.db-badge {
  display: inline-flex; align-items: center; gap: 5px;
  background: linear-gradient(135deg, rgba(76,227,211,.18), rgba(30,167,255,.16));
  color: var(--text);
  padding: 7px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 600;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 12px; font-weight: 700;
  cursor: pointer; flex-shrink: 0;
  box-shadow: 0 8px 20px rgba(30,167,255,.22);
}

.user-menu {
  position: relative;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.user-menu-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  border-radius: 0;
  border: none;
  background: transparent;
  backdrop-filter: none;
  cursor: pointer;
  transition: color .18s ease, transform .18s ease, opacity .18s ease;
}

:root[data-theme="dark"] .user-menu-trigger {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.user-menu:hover .user-menu-trigger {
  transform: translateY(-1px);
  opacity: .92;
}

:root[data-theme="dark"] .user-menu:hover .user-menu-trigger {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.user-menu-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  text-align: right;
}

.user-menu-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.15;
  max-width: 96px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-menu-account {
  font-size: 10px;
  color: var(--text-3);
  line-height: 1.15;
  max-width: 96px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-menu-caret {
  color: var(--text-4);
  font-size: 11px;
}

.user-menu-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 188px;
  padding: 8px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--card-solid), var(--card));
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(18px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  z-index: 220;
}

.user-menu:hover .user-menu-dropdown,
.user-menu.is-open .user-menu-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-menu-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--text-2);
  cursor: pointer;
  transition: background .18s ease, color .18s ease;
}

.user-menu-item:hover {
  background: rgba(30,167,255,.08);
  color: var(--primary);
}

.user-menu-item.danger:hover {
  background: var(--danger-bg);
  color: var(--danger);
}

/* ── 内容区 ── */
.content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  position: relative;
  background: transparent;
}
.content::-webkit-scrollbar { width: 5px; }
.content::-webkit-scrollbar-track { background: transparent; }
.content::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
.content::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ════════════════════════════════════════
   卡片
   ════════════════════════════════════════ */
.card {
  background: linear-gradient(180deg, var(--card-strong), var(--card));
  border-radius: var(--r);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-glow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

/* ════════════════════════════════════════
   统计卡片网格
   ════════════════════════════════════════ */
.stat-grid { display: grid; gap: 14px; margin-bottom: 18px; }
.sg2 { grid-template-columns: repeat(2,1fr); }
.sg3 { grid-template-columns: repeat(3,1fr); }
.sg4 { grid-template-columns: repeat(4,1fr); }
.sg6 { grid-template-columns: repeat(6,1fr); }

.stat-card {
  background: linear-gradient(180deg, var(--card-solid), var(--card));
  border-radius: var(--r);
  border: 1px solid var(--border);
  padding: 16px 18px;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}
.stat-card::after {
  content: '';
  position: absolute;
  inset: auto -8% -42% 62%;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(30,167,255,.08), transparent 68%);
  pointer-events: none;
  filter: blur(14px);
  opacity: .45;
}

:root[data-theme="dark"] .stat-card::after {
  background: radial-gradient(circle, rgba(70,183,255,.04), transparent 72%);
  opacity: .16;
}
.stat-label { font-size: 12px; color: var(--text-3); margin-bottom: 8px; }
.stat-val { font-size: 30px; font-weight: 800; color: var(--primary); line-height: 1.1; letter-spacing: .01em; }
/* 颜色变体 */
.sv-blue   { color: var(--primary); }
.sv-green  { color: var(--success); }
.sv-orange { color: var(--accent); }
.sv-purple { color: var(--purple); }
.sv-gray   { color: var(--text-4); }

.stat-change { font-size: 11px; margin-top: 5px; }
.sc-up   { color: var(--success); }
.sc-down { color: var(--danger); }
.sc-flat { color: var(--text-4); }

/* ════════════════════════════════════════
   按钮
   ════════════════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 5px;
  padding: 9px 16px; border-radius: 12px;
  border: none; cursor: pointer;
  font-size: 13px; font-weight: 500;
  transition: all .18s ease; white-space: nowrap; line-height: 1;
  position: relative;
  overflow: hidden;
}
.btn:disabled { opacity: .5; cursor: not-allowed; pointer-events: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
  box-shadow: 0 12px 24px rgba(30,167,255,.22);
}
.btn-primary:hover { transform: translateY(-1px); filter: brightness(1.03); }

.btn-purple { background: linear-gradient(135deg, var(--purple), var(--purple-dark)); color: #fff; }
.btn-purple:hover { transform: translateY(-1px); }

.btn-orange { background: linear-gradient(135deg, #17b8ea, var(--accent)); color: #072437; }
.btn-orange:hover { transform: translateY(-1px); }

.btn-success { background: var(--success-bg); color: #16a34a; }
.btn-success:hover { background: #bbf7d0; }

.btn-danger { background: var(--danger-bg); color: var(--danger); }
.btn-danger:hover { background: #fecaca; }

.btn-outline {
  background: linear-gradient(180deg, rgba(255,255,255,.56), rgba(255,255,255,.2));
  color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: blur(14px);
}
.btn-outline:hover { border-color: rgba(30,167,255,.4); color: var(--primary); transform: translateY(-1px); }

:root[data-theme="dark"] .btn-outline {
  background: var(--dark-pill-bg);
  border-color: var(--dark-pill-border);
  color: var(--text-2);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.02), 0 10px 22px rgba(0,0,0,.2);
}

:root[data-theme="dark"] .btn-outline:hover {
  background: var(--dark-pill-hover);
  border-color: var(--dark-pill-border-strong);
  color: var(--primary);
}

.btn-ghost { background: transparent; color: var(--text-3); }
.btn-ghost:hover { background: var(--bg); color: var(--text); }

.btn-sm    { padding: 5px 10px; font-size: 12px; border-radius: 5px; }
.btn-lg    { padding: 10px 22px; font-size: 14px; border-radius: 8px; }
.btn-block { width: 100%; }

/* ════════════════════════════════════════
   表单
   ════════════════════════════════════════ */
.input {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 13px; outline: none;
  transition: border-color .15s, box-shadow .15s;
  background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.3));
  color: var(--text); width: 100%;
  backdrop-filter: blur(10px);
}
.input:focus { border-color: rgba(30,167,255,.48); box-shadow: 0 0 0 4px rgba(30,167,255,.12), 0 10px 22px rgba(30,167,255,.12); }
.input::placeholder { color: var(--text-4); }
textarea.input { resize: vertical; min-height: 88px; }
select.input { cursor: pointer; }

:root[data-theme="dark"] .input,
:root[data-theme="dark"] select.input,
:root[data-theme="dark"] textarea.input {
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  border-color: rgba(133, 151, 174, .14);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.02);
}

:root[data-theme="dark"] .input:focus,
:root[data-theme="dark"] select.input:focus,
:root[data-theme="dark"] textarea.input:focus {
  border-color: rgba(70,183,255,.24);
  box-shadow: 0 0 0 3px rgba(70,183,255,.08);
}

.form-group  { margin-bottom: 15px; }
.form-label  { font-size: 13px; font-weight: 500; margin-bottom: 6px; display: block; }
.form-label.req::after { content: ' *'; color: var(--danger); }
.form-hint   { font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* ════════════════════════════════════════
   表格
   ════════════════════════════════════════ */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
  background: linear-gradient(180deg, rgba(255,255,255,.5), rgba(255,255,255,.14)); padding: 12px 14px;
  text-align: left; font-weight: 600; font-size: 12px;
  color: var(--text-3); border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

:root[data-theme="dark"] thead th {
  background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.025));
}
tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border-2);
  vertical-align: middle;
  background: transparent;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(30,167,255,.05); }

/* ════════════════════════════════════════
   标签 / 徽章
   ════════════════════════════════════════ */
.tag {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: 4px;
  font-size: 11px; font-weight: 500; white-space: nowrap;
}
.tag-blue   { background: #dbeafe; color: #2563eb; }
.tag-green  { background: var(--success-bg); color: #16a34a; }
.tag-orange { background: #fed7aa; color: #c2410c; }
.tag-purple { background: var(--purple-light); color: var(--purple-dark); }
.tag-yellow { background: var(--warning-bg); color: #b45309; }
.tag-pink   { background: #fce7f3; color: #be185d; }
.tag-red    { background: var(--danger-bg); color: var(--danger); }
.tag-cyan   { background: #cffafe; color: #0e7490; }
.tag-gray   { background: var(--bg); color: var(--text-3); }
.tag-dark   { background: #1e293b; color: #fff; }

/* ════════════════════════════════════════
   弹窗
   ════════════════════════════════════════ */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(15,23,42,.45);
  z-index: 1000; display: none;
  align-items: center; justify-content: center;
  backdrop-filter: blur(3px);
}
.modal-overlay.show { display: flex; }

.modal {
  background: linear-gradient(180deg, var(--card-solid), var(--card));
  border-radius: var(--r-lg);
  padding: 24px; width: 520px;
  max-width: 92vw; max-height: 88vh; overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: mIn .2s ease;
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
}
.modal-sm { width: 400px; }
.modal-lg { width: 700px; }
.modal-xl { width: 860px; }

@keyframes mIn {
  from { opacity: 0; transform: scale(.95) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-title {
  font-size: 15px; font-weight: 700;
  margin-bottom: 20px; padding-right: 32px;
  display: flex; align-items: center; gap: 8px;
}
.modal-close {
  position: absolute; top: 14px; right: 14px;
  width: 28px; height: 28px; border-radius: 6px;
  background: var(--bg); border: none; cursor: pointer;
  font-size: 16px; color: var(--text-3);
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
}
.modal-close:hover { background: var(--border); }
.modal-footer {
  display: flex; justify-content: flex-end; gap: 8px;
  margin-top: 20px; padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ════════════════════════════════════════
   区块头部
   ════════════════════════════════════════ */
.sec-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 18px; border-bottom: 1px solid var(--border);
}
.sec-title {
  font-size: 15px; font-weight: 700;
  display: flex; align-items: center; gap: 6px;
  letter-spacing: .01em;
}

/* ════════════════════════════════════════
   进度条
   ════════════════════════════════════════ */
.progress { height: 7px; background: var(--border); border-radius: 4px; overflow: hidden; }
.pf { height: 100%; border-radius: 4px; transition: width .4s ease; }
.pf-blue   { background: var(--primary); }
.pf-green  { background: var(--success); }
.pf-orange { background: var(--accent); }
.pf-danger { background: var(--danger); }
.pf-purple { background: var(--purple); }

/* ════════════════════════════════════════
   Toast
   ════════════════════════════════════════ */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  background: #1e293b; color: #fff;
  padding: 11px 18px; border-radius: 9px;
  font-size: 13px; z-index: 9999;
  opacity: 0; transform: translateY(8px);
  transition: all .25s; max-width: 340px;
  box-shadow: 0 8px 24px rgba(0,0,0,.22);
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.t-ok  { background: #14532d; }
.toast.t-err { background: #7f1d1d; }

/* ── 确认弹窗动画 ── */
.modal-overlay.show { display: flex; animation: fadeIn .2s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-confirm { width: 360px; padding: 20px; text-align: center; }
.confirm-icon { font-size: 40px; margin-bottom: 12px; color: var(--warning); }
.confirm-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.confirm-msg { font-size: 13px; color: var(--text-3); line-height: 1.6; margin-bottom: 24px; }
.confirm-btns { display: flex; gap: 10px; justify-content: center; }

/* ════════════════════════════════════════
   Banner
   ════════════════════════════════════════ */
.banner {
  background:
    radial-gradient(circle at top left, rgba(255,255,255,.25), transparent 32%),
    linear-gradient(135deg, #0f60ff, #1fa7ff 38%, #25d9e6 100%);
  border-radius: var(--r); padding: 18px 22px; color: #fff;
  margin-bottom: 18px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.banner-title { font-size: 16px; font-weight: 700; margin-bottom: 5px; }
.banner-sub   { font-size: 12px; opacity: .88; }
.banner-badges { display: flex; gap: 18px; margin-top: 10px; flex-wrap: wrap; }
.banner-badge  { font-size: 12px; opacity: .92; display: flex; align-items: center; gap: 4px; }

/* 桌面端下载Banner */
.dl-banner {
  background: linear-gradient(135deg, #667eea, #764ba2);
  border-radius: var(--r); padding: 15px 20px; color: #fff; margin-bottom: 16px;
}
.dl-banner p { font-size: 13px; margin-bottom: 11px; }
.dl-buttons  { display: flex; gap: 10px; flex-wrap: wrap; }
.dl-btn {
  background: #fff; color: #6d4aff;
  border: none; padding: 7px 16px; border-radius: 7px;
  font-size: 12px; font-weight: 700; cursor: pointer; font-family: inherit;
  display: flex; align-items: center; gap: 6px;
  transition: opacity .15s;
}
.dl-btn:hover { opacity: .88; }

/* ════════════════════════════════════════
   平台卡片
   ════════════════════════════════════════ */
.plat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(108px, 1fr));
  gap: 12px;
}

.plat-card {
  border: 2px solid var(--border);
  border-radius: var(--r); padding: 14px 8px 11px;
  text-align: center; cursor: pointer;
  transition: all .18s; background: linear-gradient(180deg, var(--card-solid), var(--card));
  position: relative; user-select: none;
  box-shadow: var(--shadow-sm);
}
.plat-card:hover { border-color: rgba(30,167,255,.28); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.plat-card.logged   { border-color: rgba(34,197,94,.34); background: linear-gradient(180deg, rgba(34,197,94,.08), var(--card)); }
.plat-card.selected { border-color: var(--primary); background: var(--primary-light); }

.plat-check {
  position: absolute; top: 6px; right: 6px;
  width: 17px; height: 17px; border-radius: 50%;
  font-size: 9px; font-weight: 700; color: #fff;
  display: none; align-items: center; justify-content: center;
}
.plat-card.logged   .plat-check { display: flex; background: var(--success); }
.plat-card.selected .plat-check { display: flex; background: var(--primary); }

.plat-icon  { width:50px; height:50px; border-radius: 10px; margin: 0 auto 7px; display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 800; color: #fff; overflow: hidden; background: transparent; }
.plat-icon img { width:50px; height:50px; object-fit: contain; }
.plat-name  { font-size: 12px; font-weight: 600; }
.plat-count { font-size: 10px; color: var(--text-4); margin-top: 3px; }
.plat-acc   { font-size: 10px; color: var(--text-4); margin-top: 1px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ════════════════════════════════════════
   开关
   ════════════════════════════════════════ */
.toggle-wrap  { display: flex; align-items: center; gap: 8px; }
.toggle-track { width: 38px; height: 22px; background: #cbd5e1; border-radius: 11px; position: relative; cursor: pointer; transition: background .2s; flex-shrink: 0; }
.toggle-track.on { background: var(--primary); }
.toggle-thumb { position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; background: #fff; border-radius: 50%; transition: left .2s; box-shadow: 0 1px 4px rgba(0,0,0,.25); }
.toggle-track.on .toggle-thumb { left: 19px; }

/* ════════════════════════════════════════
   日志条目
   ════════════════════════════════════════ */
.log-item { padding: 10px 0; border-bottom: 1px solid #f1f5f9; }
.log-item:last-child { border-bottom: none; }
.log-head { display: flex; align-items: center; gap: 8px; margin-bottom: 5px; }
.log-time  { font-size: 11px; color: var(--text-3); }
.log-badge { padding: 1px 7px; border-radius: 3px; font-size: 10px; font-weight: 700; background: #dbeafe; color: #1d4ed8; }
.log-msg   { font-size: 13px; }
.log-msg.ok  { color: var(--success); }
.log-msg.err { color: var(--danger); }
.log-code  { background: #f8fafc; border: 1px solid var(--border); border-radius: 6px; padding: 9px 12px; font-family: 'Courier New', monospace; font-size: 12px; color: var(--text-3); margin-top: 6px; }

/* ════════════════════════════════════════
   过滤行
   ════════════════════════════════════════ */
.filter-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }

.filter-row .input {
  min-height: 40px;
  height: 40px;
  padding-top: 0;
  padding-bottom: 0;
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 12px;
  flex-shrink: 0;
}

.filter-row .btn-icon {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-3);
  box-shadow: none;
}

.filter-row .btn-icon:hover {
  color: var(--primary);
  border-color: rgba(30,167,255,.4);
  background: transparent;
  transform: translateY(-1px);
}

.btn-icon .fa {
  margin-right: 0;
  font-size: 16px;
}

/* ════════════════════════════════════════
   空状态
   ════════════════════════════════════════ */
.empty { text-align: center; padding: 44px 20px; color: var(--text-3); }
.empty-icon { font-size: 38px; margin-bottom: 12px; opacity: .45; }
.confirm-icon .fa,
.db-badge .fa,
.btn .fa,
.sec-title .fa,
.modal-title .fa,
.create-btn .fa,
.upload-icon .fa,
.empty-icon .fa,
.topbar-title .fa,
.banner-badge .fa {
  margin-right: 6px;
}
.btn .fa:last-child,
.create-btn .fa:last-child {
  margin-right: 0;
}
.empty p    { font-size: 13px; }

.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255,255,255,.58), rgba(255,255,255,.18));
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(16px);
}

:root[data-theme="dark"] .theme-switch {
  background: var(--dark-pill-bg);
  border-color: var(--dark-pill-border);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.03), 0 10px 24px rgba(0,0,0,.24);
}

.theme-switch button {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 0;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  transition: all .18s ease;
  padding: 0;
}

:root[data-theme="dark"] .theme-switch button {
  color: #9eb6d3;
}

.theme-switch button.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 6px 14px rgba(30,167,255,.18);
}

.theme-switch-label {
  display: none;
  font-size: 11px;
  color: var(--text-3);
  padding-right: 2px;
  min-width: 38px;
  text-align: center;
}

/* ════════════════════════════════════════
   分页
   ════════════════════════════════════════ */
.pagination { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-3); }
.page-btn {
  min-width: 28px; height: 28px; border: 1px solid var(--border);
  border-radius: 5px; background: linear-gradient(180deg, var(--card-solid), var(--card)); cursor: pointer; font-size: 12px;
  display: flex; align-items: center; justify-content: center;
  font-family: inherit; transition: all .15s;
}
.page-btn:hover  { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-btn:disabled { opacity: .4; cursor: not-allowed; pointer-events: none; }

/* ════════════════════════════════════════
   全局滚动条
   ════════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ════════════════════════════════════════
   Flex / 间距工具类
   ════════════════════════════════════════ */
.flex           { display: flex; }
.flex-col       { flex-direction: column; }
.flex-1         { flex: 1; min-width: 0; }
.items-center   { align-items: center; }
.justify-between{ justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 4px; }  .gap-2 { gap: 8px; }
.gap-3 { gap: 12px; } .gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; }   .mt-3 { margin-top: 12px; }   .mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 12px; } .mb-4 { margin-bottom: 16px; }
.w-full { width: 100%; }
.text-sm   { font-size: 12px; }
.text-xs   { font-size: 11px; }
.text-muted{ color: var(--text-3); }
.font-600  { font-weight: 600; }
.font-700  { font-weight: 700; }
.truncate  { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }