/* MtErp — 数字化智能门户 */
:root {
  --bg0: #e8eef6;
  --bg1: #f4f7fb;
  --ink: #0f2740;
  --muted: #5a6b7d;
  --accent: var(--mt-primary-color, #1a5f9e);
  --accent-soft: #d6e6f5;
  --card: #ffffff;
  --shadow: 0 8px 28px rgba(15, 39, 64, 0.08);
  --shadow-hover: 0 14px 36px rgba(26, 95, 158, 0.16);
  --radius: 16px;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg1);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(900px 480px at 8% -10%, rgba(26, 95, 158, 0.16), transparent 60%),
    radial-gradient(700px 420px at 92% 8%, rgba(13, 122, 111, 0.10), transparent 55%),
    linear-gradient(165deg, var(--bg0) 0%, var(--bg1) 45%, #eef3f6 100%);
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(15, 39, 64, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 39, 64, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 48px 0 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.logo-mark {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--mt-primary-color, #1a5f9e), #0d7a6f);
  display: grid;
  place-items: center;
  box-shadow: 0 10px 24px rgba(26, 95, 158, 0.28);
  flex-shrink: 0;
}

.logo-img {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  object-fit: contain;
  flex-shrink: 0;
  background: #fff;
  box-shadow: 0 10px 24px rgba(26, 95, 158, 0.18);
}

.logo-mark svg {
  width: 26px;
  height: 26px;
  fill: #fff;
}

.brand-block h1 {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-block p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.divider {
  width: 1px;
  height: 28px;
  background: rgba(15, 39, 64, 0.18);
  margin: 0 4px;
}

.subtitle {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.98rem;
}

/* 顶层醒目入口：用户手册（帮助类，不占业务子系统卡片位） */
.docs-cta {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px 9px 10px;
  border-radius: 999px;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, var(--mt-primary-color, #1a5f9e) 0%, #0d7a6f 100%);
  box-shadow: 0 10px 24px rgba(26, 95, 158, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.docs-cta:hover,
.docs-cta:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(26, 95, 158, 0.34);
  filter: brightness(1.06);
  outline: none;
}

.docs-cta-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.docs-cta-icon svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: #fff;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.docs-cta-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  white-space: nowrap;
}

.docs-cta-text strong {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.docs-cta-text small {
  font-size: 0.7rem;
  font-weight: 400;
  opacity: 0.85;
}

.docs-cta-arrow {
  font-size: 0.9rem;
  opacity: 0.9;
}

.lead {
  margin: -16px 0 28px;
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 48rem;
  line-height: 1.55;
}

.lead code {
  font-size: 0.85em;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(15, 39, 64, 0.06);
}

.lead strong {
  color: var(--ink);
  font-weight: 600;
}

/* 分区：ERP / 平级 / 终端 / 规划 */
.portal-section {
  margin-bottom: 36px;
  padding-top: 8px;
  border-top: 1px solid rgba(15, 39, 64, 0.08);
}

.portal-section:first-of-type {
  border-top: none;
  padding-top: 0;
}

.portal-section--last {
  margin-bottom: 8px;
}

.section-head {
  margin-bottom: 16px;
}

.section-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.section-hint {
  margin: 6px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
  max-width: 48rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

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

.grid--aux {
  grid-template-columns: repeat(2, 1fr);
  max-width: 720px;
}

@media (max-width: 900px) {
  .grid,
  .grid--peer {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .shell {
    width: calc(100% - 28px);
    padding-top: 28px;
  }
  .header {
    flex-wrap: wrap;
    gap: 12px;
  }
  .divider {
    display: none;
  }
  .docs-cta {
    margin-left: 0;
    width: 100%;
    justify-content: center;
  }
  .grid,
  .grid--peer,
  .grid--aux {
    grid-template-columns: 1fr;
    max-width: none;
  }
  .portal-section {
    margin-bottom: 28px;
  }
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 168px;
  padding: 22px 22px 18px;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid rgba(15, 39, 64, 0.06);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.card:hover,
.card:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(26, 95, 158, 0.28);
  outline: none;
}

.card-tag {
  display: inline-block;
  margin-bottom: 6px;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent);
  background: rgba(26, 95, 158, 0.08);
  position: relative;
  z-index: 1;
}

.card-title {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
}

.card-desc {
  margin: 8px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.45;
  max-width: 62%;
  position: relative;
  z-index: 1;
}

.card-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  position: relative;
  z-index: 1;
}

.enter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  background: #eef2f5;
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease;
}

.card:hover .enter,
.card:focus-visible .enter {
  background: var(--accent);
  color: #fff;
}

.icon-blob {
  position: absolute;
  right: -8px;
  bottom: -12px;
  width: 132px;
  height: 132px;
  border-radius: 50%;
  background: var(--accent-soft);
  display: grid;
  place-items: center;
  opacity: 0.85;
}

.icon-blob svg {
  width: 56px;
  height: 56px;
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.7;
}

.card--ops .icon-blob { background: #e3eef8; }
.card--ops .icon-blob svg { stroke: #24639b; }
.card--group .icon-blob { background: #e8f0e4; }
.card--group .icon-blob svg { stroke: #3d7a45; }
.card--store .icon-blob { background: #d4ebe7; }
.card--store .icon-blob svg { stroke: #0d7a6f; }
.card--product .icon-blob { background: #f3ebe2; }
.card--product .icon-blob svg { stroke: #9a6b3c; }
.card--merchant .icon-blob { background: #e6eef6; }
.card--merchant .icon-blob svg { stroke: #3b6ea5; }
.card--supplier .icon-blob { background: #e8f2ea; }
.card--supplier .icon-blob svg { stroke: #2f6b45; }
.card--mobile .icon-blob { background: #ebe8f4; }
.card--mobile .icon-blob svg { stroke: #5c4d8a; }
.card--pay .icon-blob { background: #e4f0ea; }
.card--pay .icon-blob svg { stroke: #1b7a4a; }
.card--wms .icon-blob { background: #e5eef5; }
.card--wms .icon-blob svg { stroke: #2a6a9a; }
.card--dwh .icon-blob { background: #f2ebe4; }
.card--dwh .icon-blob svg { stroke: #a05a2c; }
.card--mall .icon-blob { background: #f0e8f4; }
.card--mall .icon-blob svg { stroke: #7a3d8a; }
.card--mallmini .icon-blob { background: #e8f4f0; }
.card--mallmini .icon-blob svg { stroke: #2d7a62; }
.card--tms .icon-blob { background: #eceff2; }
.card--tms .icon-blob svg { stroke: #6a7580; }

.card--disabled {
  cursor: not-allowed;
  opacity: 0.72;
  filter: grayscale(0.35);
  pointer-events: none;
  box-shadow: none;
}

.card--disabled:hover,
.card--disabled:focus-visible {
  transform: none;
  box-shadow: none;
  border-color: rgba(15, 39, 64, 0.06);
}

.enter--muted {
  background: #e8ecf0;
  color: var(--muted);
}

.footer {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
}