/**
 * Component Sourcing 子页 · 段4 材料责任模式
 *
 * 数值取自 Figma 实测：段背景 #F9FBFA / 1920×765；标题 #14363F 40px/73（左对齐 x=140）；
 * 三列 402 + 62 + 343 + 28 + 805；Tab 343×130（激活 #008C11 圆角 20，未激活 #F9FBFA + #B8D8BC）；
 * 详情面板 805×432（#EFF5F3 圆角 30）；Scope 卡 356×140（白底，顶部 2px #008C11，圆角 0 0 20 20）；
 * 装饰图 221×172。
 */

.csrc-model {
  padding-block: 87px 110px;
  background: #f9fbfa;
}

.csrc-model__inner {
  max-width: 1718px /* = 设计稿内容宽 1638 + 左右各 40 padding */;
  margin: 0 auto;
  padding: 0 40px;
}

.csrc-model__title {
  margin: 0 0 64px;
  font-family: var(--pcb-font-display);
  font-size: 40px;
  font-weight: 900;
  line-height: 73px;
  color: #14363f;
}

/* ── 三列：402 + 62 + 343 + 28 + 805 ─────────────────── */

.csrc-model__cols {
  display: grid;
  grid-template-columns: 402px 62px 343px 28px minmax(0, 805px);
  align-items: start;
}

.csrc-model__side { grid-column: 1; }
.csrc-model__tabs { grid-column: 3; }
.csrc-model__panels { grid-column: 5; }

/* 左列 */
.csrc-model__side-title {
  margin: 0 0 22px;
  font-size: 28px;
  font-weight: 700;
  line-height: 42px;
  color: #14363f;
}

.csrc-model__side-body {
  margin: 0 0 34px;
  font-size: 16px;
  line-height: 20px;
  color: #666666;
}

.csrc-model__rule-label {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 20px;
  color: #008c11;
}

.csrc-model__rule-body {
  margin: 0;
  font-size: 14px;
  line-height: 20px;
  color: #666666;
}

/* ── 中列：模式 Tab ─────────────────────────────────── */

.csrc-model-tab {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
  width: 100%;
  min-height: 130px;
  padding: 22px 24px;
  font: inherit;
  text-align: left;
  cursor: pointer;
  background: #f9fbfa;
  border: 1px solid #b8d8bc;
  border-radius: 20px;
  transition: background 0.24s ease, border-color 0.24s ease, transform 0.24s ease;
}

.csrc-model-tab + .csrc-model-tab { margin-top: 21px; }

.csrc-model-tab__scope {
  font-size: 14px;
  line-height: 14px;
  color: #008c11;
}

.csrc-model-tab__title {
  font-size: 24px;
  font-weight: 600;
  line-height: 42px;
  color: #14363f;
}

.csrc-model-tab:hover {
  border-color: #008c11;
  transform: translateX(2px);
}

.csrc-model-tab:focus-visible {
  outline: 2px solid #008c11;
  outline-offset: 2px;
}

.csrc-model-tab.is-active {
  background: #008c11;
  border-color: #008c11;
}

.csrc-model-tab.is-active .csrc-model-tab__scope,
.csrc-model-tab.is-active .csrc-model-tab__title { color: #ffffff; }

/* ── 右列：详情面板 ─────────────────────────────────── */

.csrc-model-panel {
  position: relative;
  min-height: 432px;
  padding: 33px 33px 28px;
  overflow: hidden;
  background: #eff5f3;
  border: 1px solid #b8d8bc;
  border-radius: 30px;
}

.csrc-model-panel[hidden] { display: none; }

.csrc-model-panel__label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 14px;
  color: #008c11;
}

.csrc-model-panel__title {
  margin: 0 0 12px;
  font-size: 36px;
  font-weight: 600;
  line-height: 42px;
  color: #14363f;
}

.csrc-model-panel__body {
  max-width: 702px;
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 18px;
  color: #666666;
}

/* 两个 Scope 卡 */
.csrc-model-panel__scopes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 356px));
  gap: 21px;
  justify-content: start;
  max-width: 733px;
  margin-bottom: 26px;
}

.csrc-scope-card {
  position: relative;
  padding: 19px 20px 18px;
  background: #ffffff;
  border-radius: 0 0 20px 20px;
}

.csrc-scope-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  background: #008c11;
}

.csrc-scope-card__label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 14px;
  color: #008c11;
}

.csrc-scope-card__body {
  margin: 0;
  font-size: 16px;
  line-height: 18px;
  color: #97a29c;
}

/* Useful When */
.csrc-model-panel__when-label {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 22px;
  color: #008c11;
}

.csrc-model-panel__when-body {
  margin: 0;
  font-size: 18px;
  line-height: 20px;
  color: #14363f;
}

/* 右下装饰图 */
.csrc-model-panel__deco {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 221px;
  height: 172px;
  object-fit: contain;
  opacity: 0.5;
  pointer-events: none;
}

/* ── 响应式 ─────────────────────────────────────────── */

@media (max-width: 1600px) {
  .csrc-model__title { font-size: 34px; line-height: 62px; margin-bottom: 48px; }
  .csrc-model__cols {
    grid-template-columns: 340px 40px 300px 24px minmax(0, 1fr);
  }
  .csrc-model__side-title { font-size: 24px; line-height: 36px; }
  .csrc-model-panel__title { font-size: 30px; }
}

@media (max-width: 1280px) {
  .csrc-model { padding-block: 64px 76px; }
  .csrc-model__title { font-size: 28px; line-height: 52px; }
  .csrc-model__cols {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 32px;
  }
  .csrc-model__side { grid-column: 1; grid-row: 1 / span 2; }
  .csrc-model__tabs { grid-column: 1; grid-row: 3; }
  .csrc-model__panels { grid-column: 2; grid-row: 1 / span 3; }
}

@media (max-width: 900px) {
  .csrc-model { padding-block: 48px 56px; }
  .csrc-model__title { font-size: 22px; line-height: 38px; margin-bottom: 32px; }
  .csrc-model__cols { display: block; }
  .csrc-model__side { margin-bottom: 28px; }
  .csrc-model__side-title { font-size: 20px; line-height: 30px; }
  .csrc-model__tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 18px;
    overflow-x: auto;
  }
  .csrc-model-tab + .csrc-model-tab { margin-top: 0; }
  .csrc-model-tab { min-width: 200px; min-height: 84px; padding: 14px 16px; }
  .csrc-model-tab__title { font-size: 18px; line-height: 26px; }
  .csrc-model-panel { min-height: 0; padding: 22px 20px; border-radius: 20px; }
  .csrc-model-panel__title { font-size: 24px; line-height: 32px; }
  .csrc-model-panel__scopes { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .csrc-model-panel__deco { display: none; }
}