/* ============================================================
   项策项目管理软件页面 · 专用样式
   依赖：style.css (设计系统变量与基础组件)
   对齐首页 V2 精修体系：深蓝 Hero + 8 倍数间距 + 统一卡片风格
   ============================================================ */

/* ===================== Hero 深蓝覆盖 ===================== */
.sw-hero {
  padding-top: 140px;
}
.sw-hero h1 {
  font-size: 48px;
  line-height: 1.15;
}
.sw-hero .hero-sub {
  max-width: 520px;
}
.sw-hero .hero-stats {
  margin-top: 36px;
}
.sw-hero .hero-stats .num {
  font-size: 28px;
}
.sw-hero .hero-stats .num span {
  font-size: 16px;
  margin-left: 1px;
}

/* 深色面包屑 */
.breadcrumb-light {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 20px;
}
.breadcrumb-light a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color 0.2s;
}
.breadcrumb-light a:hover {
  color: var(--cyan-light);
}
.breadcrumb-light .sep {
  margin: 0 6px;
  color: rgba(255, 255, 255, 0.25);
}

/* ===================== 核心价值卡片 ===================== */
.section-light {
  background: #ffffff;
}
.sw-value-card {
  text-align: left;
  padding: 32px 28px 24px;
  position: relative;
  overflow: hidden;
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
}
.sw-value-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--orange-dark));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.sw-value-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.08);
  border-color: rgba(255, 106, 0, 0.3);
}
.sw-value-card:hover::before {
  transform: scaleX(1);
}
.sw-vc-num {
  position: absolute;
  top: 22px;
  right: 24px;
  font-size: 12px;
  font-weight: 800;
  color: var(--orange);
  letter-spacing: 1.2px;
  background: var(--orange-light);
  padding: 4px 10px;
  border-radius: 999px;
  font-feature-settings: "tnum";
}
.sw-value-card .ic {
  margin: 0 0 18px 0;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--orange-light), rgba(6, 182, 212, 0.08));
  color: var(--orange);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sw-value-card h3 {
  font-size: 20px;
  margin-bottom: 8px;
  font-weight: 800;
  color: var(--ink);
}
.sw-vc-sub {
  font-size: 13.5px;
  color: var(--gray);
  line-height: 1.65;
  margin-bottom: 18px;
}
.sw-vc-points {
  list-style: none;
  padding: 18px 0 0 0;
  margin: 0 0 18px 0;
  border-top: 1px dashed var(--line);
}
.sw-vc-points li {
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.7;
  padding: 5px 0 5px 24px;
  position: relative;
}
.sw-vc-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--orange-light);
}
.sw-vc-points li::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 15px;
  width: 7px;
  height: 4px;
  border-left: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  transform: rotate(-45deg);
}
.sw-vc-stat {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.sw-vc-stat .num {
  font-size: 22px;
  font-weight: 900;
  color: var(--ink);
  letter-spacing: -0.5px;
  font-feature-settings: "tnum";
}
.sw-vc-stat .lbl {
  font-size: 12.5px;
  color: var(--gray);
  letter-spacing: 0.3px;
}

/* ===================== 项目全生命周期时间线 ===================== */
.sw-lifecycle {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
/* 连接线 */
.sw-lifecycle::before {
  content: '';
  position: absolute;
  top: 52px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--orange-soft), var(--orange), var(--orange-soft));
  z-index: 0;
}
.sw-lc-item {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 16px;
}
.sw-lc-num {
  font-size: 13px;
  font-weight: 800;
  color: var(--gray-2);
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.sw-lc-icon {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--orange-soft);
  color: var(--orange);
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px rgba(255, 106, 0, 0.1);
}
.sw-lc-item:hover .sw-lc-icon {
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  color: #fff;
  border-color: var(--orange);
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(255, 106, 0, 0.22);
}
.sw-lc-body h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--ink);
}
.sw-lc-body p {
  font-size: 13.5px;
  color: var(--gray);
  line-height: 1.7;
  max-width: 240px;
  margin: 0 auto;
}

/* ===================== 四层全链路 ===================== */
.sw-layer {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 36px;
  margin-bottom: 20px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.sw-layer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--orange), var(--orange-dark));
  border-radius: 4px 0 0 4px;
}
.sw-layer:hover {
  box-shadow: var(--shadow);
  border-color: transparent;
  transform: translateY(-2px);
}
.sw-layer-head {
  display: grid;
  grid-template-columns: auto 1fr 2fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 22px;
}
.sw-layer-num {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--orange-light);
  color: var(--orange);
  display: grid;
  place-items: center;
  font-size: 22px;
  font-weight: 900;
  flex-shrink: 0;
}
.sw-layer-title h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.3;
}
.sw-layer-tag {
  display: inline-block;
  margin-top: 5px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--orange);
  background: var(--orange-light);
  padding: 3px 12px;
  border-radius: 999px;
}
.sw-layer-desc {
  font-size: 14.5px;
  color: var(--gray);
  line-height: 1.7;
}
.sw-layer-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.sw-feat {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-2);
  font-weight: 500;
}
.sw-feat-ic {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--orange-light);
  color: var(--orange);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

/* ===================== 响应式 ===================== */
@media (max-width: 980px) {
  .sw-hero {
    padding-top: 120px;
  }
  .sw-hero h1 {
    font-size: 38px;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .sw-lifecycle {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 0;
  }
  .sw-lifecycle::before {
    display: none;
  }
  .sw-layer-head {
    grid-template-columns: auto 1fr;
  }
  .sw-layer-desc {
    grid-column: 1 / -1;
  }
  .sw-layer-features {
    grid-template-columns: repeat(2, 1fr);
  }
  .sw-layer {
    padding: 28px 24px;
  }
}

@media (max-width: 760px) {
  .sw-hero {
    padding-top: 110px;
  }
  .sw-hero h1 {
    font-size: 30px;
  }
  .sw-hero .hero-stats {
    grid-template-columns: repeat(2, auto);
    gap: 20px;
  }
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .sw-lifecycle {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .sw-layer {
    padding: 24px 20px;
  }
  .sw-layer-head {
    grid-template-columns: 1fr;
    gap: 14px;
    text-align: left;
  }
  .sw-layer-num {
    width: 44px;
    height: 44px;
    font-size: 18px;
  }
  .sw-layer-title h3 {
    font-size: 18px;
  }
  .sw-layer-features {
    grid-template-columns: 1fr;
  }
}