@import url('variables.css');

/* 页面背景：浅蓝灰，整体偏亮 */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: #eef4fb;
  color: #1e293b;
  position: relative;
}
/* 科技网格：青蓝色网格线 ~8% 透明度，在浅底上清晰可见 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0,212,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,.08) 1px, transparent 1px);
  background-size: 24px 24px;
}
/* 顶部光晕：青蓝径向渐变从顶部打下来，形成光带 */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 140%;
  height: 420px;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,212,255,.12) 0%, rgba(0,153,230,.06) 40%, transparent 70%);
}

.main-content {
  flex: 1;
  padding-top: var(--header-height);
  position: relative;
  z-index: 1;
}

.container {
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 16px;
}

.container-fluid {
  width: 100%;
  padding: 0 16px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -8px;
}

.col {
  flex: 1;
  padding: 0 8px;
}

.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

.offset-1 { margin-left: 8.333333%; }
.offset-2 { margin-left: 16.666667%; }
.offset-3 { margin-left: 25%; }
.offset-4 { margin-left: 33.333333%; }
.offset-5 { margin-left: 41.666667%; }
.offset-6 { margin-left: 50%; }
.offset-7 { margin-left: 58.333333%; }
.offset-8 { margin-left: 66.666667%; }
.offset-9 { margin-left: 75%; }
.offset-10 { margin-left: 83.333333%; }
.offset-11 { margin-left: 91.666667%; }

.flex {
  display: flex;
}

.flex-row {
  flex-direction: row;
}

.flex-column {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-nowrap {
  flex-wrap: nowrap;
}

.justify-start {
  justify-content: flex-start;
}

.justify-center {
  justify-content: center;
}

.justify-end {
  justify-content: flex-end;
}

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

.align-items-start {
  align-items: flex-start;
}

.align-items-center {
  align-items: center;
}

.align-items-end {
  align-items: flex-end;
}

.align-items-stretch {
  align-items: stretch;
}

.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-5 { gap: 20px; }
.gap-6 { gap: 24px; }

.grid {
  display: grid;
}

.grid-template-columns-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-template-columns-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-template-columns-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-template-columns-5 {
  grid-template-columns: repeat(5, 1fr);
}

.grid-template-columns-6 {
  grid-template-columns: repeat(6, 1fr);
}

.gap-grid-2 { gap: 8px; }
.gap-grid-3 { gap: 12px; }
.gap-grid-4 { gap: 16px; }
.gap-grid-5 { gap: 20px; }
.gap-grid-6 { gap: 24px; }

.position-relative {
  position: relative;
}

.position-absolute {
  position: absolute;
}

.position-fixed {
  position: fixed;
}

.position-sticky {
  position: sticky;
}

.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

.d-none { display: none !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-error { color: var(--error-color) !important; }
.text-white { color: var(--text-inverse) !important; }
.text-muted { color: var(--text-tertiary) !important; }

.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--text-secondary) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-error { background-color: var(--error-color) !important; }
.bg-white { background-color: var(--background-color-white) !important; }
.bg-light { background-color: var(--background-color-light) !important; }
.bg-gray { background-color: var(--background-color) !important; }

.border { border: 1px solid var(--border-color) !important; }
.border-top { border-top: 1px solid var(--border-color) !important; }
.border-bottom { border-bottom: 1px solid var(--border-color) !important; }
.border-left { border-left: 1px solid var(--border-color) !important; }
.border-right { border-right: 1px solid var(--border-color) !important; }

.border-primary { border-color: var(--primary-color) !important; }
.border-secondary { border-color: var(--text-secondary) !important; }
.border-success { border-color: var(--success-color) !important; }
.border-warning { border-color: var(--warning-color) !important; }
.border-error { border-color: var(--error-color) !important; }

.rounded { border-radius: var(--border-radius-base) !important; }
.rounded-sm { border-radius: var(--border-radius-sm) !important; }
.rounded-lg { border-radius: var(--border-radius-lg) !important; }
.rounded-xl { border-radius: var(--border-radius-xl) !important; }
.rounded-circle { border-radius: 50% !important; }

.shadow-none { box-shadow: none !important; }
.shadow-sm { box-shadow: var(--box-shadow-sm) !important; }
.shadow { box-shadow: var(--box-shadow-base) !important; }
.shadow-lg { box-shadow: var(--box-shadow-lg) !important; }
.shadow-xl { box-shadow: var(--box-shadow-xl) !important; }

.m-0 { margin: 0 !important; }
.m-1 { margin: 4px !important; }
.m-2 { margin: 8px !important; }
.m-3 { margin: 12px !important; }
.m-4 { margin: 16px !important; }
.m-5 { margin: 20px !important; }
.m-auto { margin: auto !important; }

.mx-auto { margin-left: auto !important; margin-right: auto !important; }
.my-auto { margin-top: auto !important; margin-bottom: auto !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 4px !important; }
.mt-2 { margin-top: 8px !important; }
.mt-3 { margin-top: 12px !important; }
.mt-4 { margin-top: 16px !important; }
.mt-5 { margin-top: 20px !important; }
.mt-auto { margin-top: auto !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 4px !important; }
.mb-2 { margin-bottom: 8px !important; }
.mb-3 { margin-bottom: 12px !important; }
.mb-4 { margin-bottom: 16px !important; }
.mb-5 { margin-bottom: 20px !important; }
.mb-auto { margin-bottom: auto !important; }

.ml-0 { margin-left: 0 !important; }
.ml-1 { margin-left: 4px !important; }
.ml-2 { margin-left: 8px !important; }
.ml-3 { margin-left: 12px !important; }
.ml-4 { margin-left: 16px !important; }
.ml-5 { margin-left: 20px !important; }
.ml-auto { margin-left: auto !important; }

.mr-0 { margin-right: 0 !important; }
.mr-1 { margin-right: 4px !important; }
.mr-2 { margin-right: 8px !important; }
.mr-3 { margin-right: 12px !important; }
.mr-4 { margin-right: 16px !important; }
.mr-5 { margin-right: 20px !important; }
.mr-auto { margin-right: auto !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: 4px !important; }
.p-2 { padding: 8px !important; }
.p-3 { padding: 12px !important; }
.p-4 { padding: 16px !important; }
.p-5 { padding: 20px !important; }

.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.px-1 { padding-left: 4px !important; padding-right: 4px !important; }
.px-2 { padding-left: 8px !important; padding-right: 8px !important; }
.px-3 { padding-left: 12px !important; padding-right: 12px !important; }
.px-4 { padding-left: 16px !important; padding-right: 16px !important; }
.px-5 { padding-left: 20px !important; padding-right: 20px !important; }

.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
.py-1 { padding-top: 4px !important; padding-bottom: 4px !important; }
.py-2 { padding-top: 8px !important; padding-bottom: 8px !important; }
.py-3 { padding-top: 12px !important; padding-bottom: 12px !important; }
.py-4 { padding-top: 16px !important; padding-bottom: 16px !important; }
.py-5 { padding-top: 20px !important; padding-bottom: 20px !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: 4px !important; }
.pt-2 { padding-top: 8px !important; }
.pt-3 { padding-top: 12px !important; }
.pt-4 { padding-top: 16px !important; }
.pt-5 { padding-top: 20px !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: 4px !important; }
.pb-2 { padding-bottom: 8px !important; }
.pb-3 { padding-bottom: 12px !important; }
.pb-4 { padding-bottom: 16px !important; }
.pb-5 { padding-bottom: 20px !important; }

.pl-0 { padding-left: 0 !important; }
.pl-1 { padding-left: 4px !important; }
.pl-2 { padding-left: 8px !important; }
.pl-3 { padding-left: 12px !important; }
.pl-4 { padding-left: 16px !important; }
.pl-5 { padding-left: 20px !important; }

.pr-0 { padding-right: 0 !important; }
.pr-1 { padding-right: 4px !important; }
.pr-2 { padding-right: 8px !important; }
.pr-3 { padding-right: 12px !important; }
.pr-4 { padding-right: 16px !important; }
.pr-5 { padding-right: 20px !important; }

.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }

@media (max-width: 1200px) {
  .col-xl-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
  .col-xl-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-xl-3 { flex: 0 0 25%; max-width: 25%; }
  .col-xl-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-xl-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-xl-6 { flex: 0 0 50%; max-width: 50%; }
  .col-xl-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-xl-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-xl-9 { flex: 0 0 75%; max-width: 75%; }
  .col-xl-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-xl-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-xl-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (max-width: 992px) {
  .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
  .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
  .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
  .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
  .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (max-width: 768px) {
  .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
  .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-md-3 { flex: 0 0 25%; max-width: 25%; }
  .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-md-6 { flex: 0 0 50%; max-width: 50%; }
  .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-md-9 { flex: 0 0 75%; max-width: 75%; }
  .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-md-12 { flex: 0 0 100%; max-width: 100%; }
  
  .container {
    padding: 0 12px;
  }
  
  .row {
    margin: 0 -6px;
  }
  
  .col {
    padding: 0 6px;
  }
}

@media (max-width: 576px) {
  .col-sm-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
  .col-sm-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-sm-3 { flex: 0 0 25%; max-width: 25%; }
  .col-sm-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-sm-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-sm-6 { flex: 0 0 50%; max-width: 50%; }
  .col-sm-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-sm-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-sm-9 { flex: 0 0 75%; max-width: 75%; }
  .col-sm-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-sm-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
  
  .d-md-none { display: none !important; }
  .d-md-block { display: block !important; }
  .d-md-flex { display: flex !important; }
}

@media (max-width: 768px) {
  .d-lg-none { display: none !important; }
  .d-lg-block { display: block !important; }
  .d-lg-flex { display: flex !important; }
}

@media (max-width: 992px) {
  .d-xl-none { display: none !important; }
  .d-xl-block { display: block !important; }
  .d-xl-flex { display: flex !important; }
}