/* =============================================================================
   Doctor · 单页三步式自查界面
   版式与配色照原项目：草绿主色、白卡片 + 绿边框、右侧说明栏、顶部步骤条。
   ========================================================================== */

:root {
  --green: #79b15b;
  --green-dark: #5e9445;
  --green-deep: #52a424;
  --green-ink: #4d7a35;
  --green-soft: #eaf4e3;
  --green-line: #c9e2b8;
  --ink: #333333;
  --ink-soft: #666666;
  --muted: #999999;
  --line: #e2e2e2;
  --paper: #f2f6ee;
  --radius: 4px;
  --font: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
p,
ol,
ul {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

a {
  color: var(--green-deep);
  text-decoration: none;
}

.app {
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 16px 0;
}

/* ------------------------------------------------------------------ 顶部 */

.topbar {
  background: #fff;
  border: 1px solid var(--green-line);
  border-radius: var(--radius) var(--radius) 0 0;
  border-bottom: none;
}

.topbar-inner {
  display: flex;
  align-items: center;
  min-height: 46px;
}

.topbar-brand {
  flex: none;
  padding: 12px 22px;
  background: var(--green);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: var(--radius) 0 0 0;
}

.steps {
  display: flex;
  align-items: center;
  flex: 1;
  padding: 0 18px;
  gap: 4px;
}

.steps li {
  position: relative;
  padding: 12px 20px 12px 26px;
  font-size: 13.5px;
  color: var(--muted);
  background: #f7f7f7;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 50%, calc(100% - 12px) 100%, 0 100%, 10px 50%);
  margin-left: -10px;
}

.steps li:first-child {
  margin-left: 0;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 50%, calc(100% - 12px) 100%, 0 100%);
  padding-left: 20px;
}

.steps li b {
  font-weight: 400;
}

.steps li.is-active {
  background: var(--green-soft);
  color: var(--green-ink);
}

.steps li.is-active b {
  font-weight: 700;
}

.steps li.is-done {
  background: #eef3ea;
  color: var(--green);
}

/* ------------------------------------------------------------------ 主体 */

.main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 292px;
  gap: 14px;
  align-items: start;
  padding-bottom: 18px;
}

.content {
  background: #fff;
  border: 1px solid var(--green-line);
  border-radius: 0 0 var(--radius) var(--radius);
  min-height: 620px;
  padding: 26px 30px 34px;
}

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

.tip {
  margin: 6px 0 34px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 13.5px;
}

/* ------------------------------------------------------------ 表单（step1） */

.form-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 26px 96px;
}

.form-label {
  color: var(--ink-soft);
  font-size: 14px;
  width: 48px;
  text-align: right;
}

.radio-row {
  display: flex;
  gap: 26px;
}

.radio-item {
  position: relative;
  padding: 2px 0 2px 24px;
  border: none;
  background: none;
  color: var(--ink-soft);
  font-size: 14px;
}

.radio-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  border: 1px solid #c8c8c8;
  border-radius: 50%;
  background: #fff;
}

.radio-item.is-active {
  color: var(--green-ink);
}

.radio-item.is-active::before {
  border-color: var(--green);
  box-shadow: inset 0 0 0 3px #fff, inset 0 0 0 8px var(--green);
}

.select {
  width: 168px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid #cfcfcf;
  border-radius: 2px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 13.5px;
}

.select:focus {
  outline: none;
  border-color: var(--green);
}

.step-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 34px 0 0 96px;
}

.btn-primary {
  min-width: 168px;
  height: 46px;
  padding: 0 30px;
  border: none;
  border-radius: var(--radius);
  background: var(--green);
  color: #fff;
  font-size: 16px;
  letter-spacing: 0.08em;
  transition: background 0.15s ease;
}

.btn-primary:hover {
  background: var(--green-dark);
}

.btn-primary[disabled] {
  background: #a9c99a;
  cursor: progress;
}

.btn-ghost {
  height: 46px;
  padding: 0 22px;
  border: 1px solid #d5d5d5;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink-soft);
  font-size: 14px;
}

.btn-ghost:hover {
  border-color: var(--green);
  color: var(--green-ink);
}

.link-btn {
  border: none;
  background: none;
  padding: 0;
  color: var(--green-deep);
  font-size: 13px;
}

.link-btn:hover {
  text-decoration: underline;
}

/* ------------------------------------------------------------ 信息条 */

.info-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 0 14px;
  border-bottom: 1px dashed var(--line);
  color: var(--ink-soft);
  font-size: 13.5px;
}

.info-bar b {
  color: var(--ink);
  font-weight: 600;
}

/* ------------------------------------------------------------ 搜索（step2） */

.search-bar {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 20px 0 24px;
}

.search-input-wrap {
  position: relative;
  flex: 1;
  max-width: 520px;
}

.search-input-wrap input {
  width: 100%;
  height: 40px;
  padding: 0 14px;
  border: 1px solid #cfcfcf;
  border-radius: 2px;
  background: #fff;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
}

.search-input-wrap input::placeholder {
  color: #b0b0b0;
}

.search-input-wrap input:focus {
  outline: none;
  border-color: var(--green);
}

.search-bar .btn-search {
  height: 40px;
  padding: 0 26px;
  border: none;
  border-radius: 2px;
  background: var(--green);
  color: #fff;
  font-size: 14px;
}

.search-bar .btn-search:hover {
  background: var(--green-dark);
}

.suggest {
  position: absolute;
  z-index: 20;
  top: 42px;
  left: 0;
  right: 0;
  max-height: 300px;
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--green-line);
  border-radius: 2px;
  box-shadow: 0 6px 18px rgba(60, 90, 40, 0.12);
}

.suggest li {
  padding: 8px 14px;
  font-size: 13.5px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.suggest li:hover,
.suggest li[aria-selected="true"] {
  background: var(--green-soft);
}

.suggest .meta {
  color: var(--muted);
  font-size: 12px;
  flex: none;
}

.suggest .empty {
  color: var(--muted);
  cursor: default;
}

/* ------------------------------------------------------------ 区块通用 */

.block {
  margin: 0 0 26px;
}

.block-title {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 14px;
  color: var(--green-deep);
  font-size: 15px;
  font-weight: 700;
}

.block-icon {
  font-size: 12px;
  color: var(--green);
}

.empty {
  color: var(--muted);
  font-size: 13px;
}

.hint {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}

/* ------------------------------------------------------------ 人体图 */

.body-toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
}

.seg {
  display: inline-flex;
  border: 1px solid var(--green-line);
  border-radius: 2px;
  overflow: hidden;
}

.seg button {
  border: none;
  background: #fff;
  padding: 5px 16px;
  font-size: 13px;
  color: var(--ink-soft);
}

.seg button + button {
  border-left: 1px solid var(--green-line);
}

.seg button.is-active {
  background: var(--green);
  color: #fff;
}

.body-stage {
  display: flex;
  justify-content: center;
  padding: 6px 0 0;
}

.body-figure[hidden] {
  display: none;
}

.body-photo {
  position: relative;
  width: 270px;
  overflow: hidden;
}

/* 精灵图：整张图是可见图的 3 倍宽，只露出左侧三分之一 */
.body-photo img {
  display: block;
  width: 300%;
  height: 100%;
}

.body-hot {
  position: absolute;
  border: none;
  padding: 0;
  background: transparent;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.body-hot:hover,
.body-hot:focus-visible {
  background: rgba(121, 177, 91, 0.16);
  outline: none;
}

.body-head-links {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.body-head-links[hidden] {
  display: none;
}

.head-link {
  border: 1px solid var(--green-line);
  border-radius: 999px;
  background: #fff;
  padding: 2px 13px;
  font-size: 12.5px;
  color: var(--ink-soft);
}

.head-link:hover {
  border-color: var(--green);
  color: var(--green-ink);
}

.body-caption {
  margin-top: 10px;
  text-align: center;
  color: var(--muted);
  font-size: 12.5px;
  min-height: 20px;
}

.part-panel {
  margin-top: 16px;
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
  background: #fbfdf9;
  padding: 12px 16px 14px;
}

.part-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  color: var(--green-ink);
  font-size: 13.5px;
}

.part-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
}

/* ------------------------------------------------------------ 标签 */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 24px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 12px;
  border: 1px solid var(--green-line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink-soft);
  font-size: 13px;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.chip:hover {
  border-color: var(--green);
  background: var(--green-soft);
  color: var(--green-ink);
}

.chip--on {
  background: var(--green-soft);
  border-color: var(--green);
  color: var(--green-ink);
}

.chip__x {
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border: none;
  border-radius: 50%;
  background: rgba(121, 177, 91, 0.22);
  color: var(--green-ink);
  font-size: 11px;
  line-height: 1;
  padding: 0;
}

.chip__x:hover {
  background: var(--green);
  color: #fff;
}

.chip--add {
  border-style: dashed;
}

.chips--small .chip {
  font-size: 12.5px;
  padding: 3px 10px;
}

/* ------------------------------------------------------------ 结果 */

.result-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 232px;
  gap: 20px;
  margin-top: 18px;
  align-items: start;
}

.result-head h2 {
  color: var(--green-ink);
  font-size: 16px;
  margin-bottom: 4px;
}

.result-note {
  color: var(--muted);
  font-size: 12.5px;
  margin-bottom: 12px;
}

.result-list {
  display: grid;
  gap: 10px;
}

.result-item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color 0.15s ease, background 0.15s ease;
  cursor: pointer;
  text-align: left;
  width: 100%;
}

.result-item:hover {
  border-color: var(--green);
  background: #fcfefb;
}

.result-rank {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green-ink);
  font-size: 12.5px;
  font-weight: 700;
}

.result-item:nth-child(-n + 3) .result-rank {
  background: var(--green);
  color: #fff;
}

.result-name {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--green-ink);
}

.result-tag {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--ink-soft);
  background: #f3f3f3;
  border-radius: 2px;
  padding: 1px 6px;
}

.result-hit {
  font-size: 12px;
  font-weight: 400;
  color: #fff;
  background: var(--green);
  border-radius: 2px;
  padding: 1px 7px;
}

.result-intro {
  margin-top: 5px;
  color: var(--ink-soft);
  font-size: 13px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.result-symptoms {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.result-symptoms span {
  font-size: 12px;
  color: var(--ink-soft);
  background: #f6f8f3;
  border-radius: 2px;
  padding: 1px 7px;
}

.result-side {
  display: grid;
  gap: 12px;
}

.side-card {
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
  background: #fbfdf9;
  padding: 12px 14px;
}

.side-card h3 {
  color: var(--green-ink);
  font-size: 13.5px;
  margin-bottom: 8px;
}

/* ------------------------------------------------------------ 详情 */

.detail-panel {
  margin-top: 22px;
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
  background: #fff;
  padding: 20px 22px 22px;
}

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

.detail-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.detail-head h2 {
  font-size: 19px;
  color: var(--green-ink);
}

.detail-blocks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
}

.detail-block h4 {
  margin: 0 0 6px;
  font-size: 12.5px;
  color: var(--green-deep);
}

.detail-block p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  white-space: pre-wrap;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.detail-block p.is-open {
  display: block;
}

.detail-more {
  margin-top: 4px;
  border: none;
  background: none;
  padding: 0;
  color: var(--green-deep);
  font-size: 12px;
}

.graph-wrap {
  margin-top: 18px;
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
  background: #fbfdf9;
  padding: 12px;
}

.graph-wrap h4 {
  margin: 0 0 8px;
  font-size: 12.5px;
  color: var(--green-deep);
}

.graph-canvas {
  min-height: 440px;
  background-image: radial-gradient(circle at 1px 1px, #e2ecdb 1px, transparent 0);
  background-size: 18px 18px;
  border-radius: 2px;
  overflow: hidden;
}

.graph-canvas:empty::after {
  content: "正在绘制图谱…";
  display: grid;
  place-items: center;
  height: 440px;
  color: var(--muted);
  font-size: 13px;
}

.graph-edge {
  fill: none;
  stroke: #b8d3a6;
  stroke-width: 1.4;
  transition: opacity 0.18s ease, stroke 0.18s ease;
}

.graph-edge.is-dim {
  opacity: 0.15;
}

.graph-edge.is-hot {
  stroke: var(--green-deep);
  stroke-width: 2;
}

.graph-node {
  cursor: grab;
  transition: opacity 0.18s ease;
}

.graph-node.is-dim {
  opacity: 0.3;
}

.graph-label {
  font-family: var(--font);
  font-size: 12px;
  fill: var(--ink-soft);
  pointer-events: none;
}

.graph-label--center {
  fill: #fff;
  font-size: 13px;
  font-weight: 600;
}

/* ------------------------------------------------------------ 侧栏 */

.sidebar {
  background: #fff;
  border: 1px solid var(--green-line);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 26px 22px 30px;
  text-align: center;
}

.sidebar h1 {
  color: var(--green-deep);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.sidebar-lead {
  margin-top: 6px;
  color: #e08a3c;
  font-size: 14px;
  line-height: 1.8;
}

.sidebar-lead em {
  font-style: normal;
  font-weight: 700;
}

.sidebar-doctor {
  display: block;
  width: 132px;
  height: auto;
  margin: 16px auto 10px;
}

.sidebar-note {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line);
}

.sidebar h2 {
  margin: 18px 0 12px;
  color: var(--green-deep);
  font-size: 16px;
  text-align: left;
}

.side-steps {
  display: grid;
  gap: 14px;
  text-align: left;
}

.side-steps li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  position: relative;
}

.side-steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 26px;
  bottom: -14px;
  width: 1px;
  background: var(--green-line);
}

.side-steps span {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.side-steps p {
  color: var(--ink-soft);
  font-size: 12.5px;
  line-height: 1.65;
  padding-top: 2px;
}

/* ------------------------------------------------------------ 页脚 */

.footer {
  padding: 16px 0 26px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

/* ------------------------------------------------------------ toast */

.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  z-index: 60;
  padding: 10px 20px;
  border-radius: 2px;
  background: rgba(51, 51, 51, 0.92);
  color: #fff;
  font-size: 13px;
}

/* ------------------------------------------------------------ 响应式 */

@media (max-width: 1000px) {
  .main {
    grid-template-columns: minmax(0, 1fr);
  }

  .sidebar {
    order: 2;
    border-radius: var(--radius);
  }

  .sidebar-doctor {
    width: 110px;
  }

  .result-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .app {
    padding: 10px 8px 0;
  }

  .steps li {
    padding: 10px 12px 10px 18px;
    font-size: 12px;
  }

  .content {
    padding: 18px 14px 24px;
  }

  .form-row,
  .step-actions {
    margin-left: 0;
  }

  .form-label {
    width: 40px;
  }

  .body-photo {
    width: 240px;
  }

  .btn-primary {
    width: 100%;
  }

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