:root {
  color-scheme: light;
  --color-primary: #1caa7a;
  --color-primary-deep: #0e7d59;
  --color-primary-soft: #e6f6ef;
  --color-background: #f6faf8;
  --color-surface: #ffffff;
  --color-text: #1a201d;
  --color-muted-text: #5c6660;
  --color-border: #e3ece7;
  --color-focus: #0b66ff;
  --color-danger: #c0392b;
  --font-body: ui-sans-serif, system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: ui-sans-serif, system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --space-unit: 0.25rem;
  --content-width: 80rem;
  --shadow-sm: 0 1px 2px rgba(23, 42, 33, 0.06);
  --shadow-md: 0 4px 16px rgba(23, 42, 33, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-body);
}

body {
  margin: 0;
  min-height: 100dvh;
}

button,
input,
select,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

a {
  color: var(--color-primary-deep);
}

.skip-link {
  left: 1rem;
  position: fixed;
  top: 1rem;
  transform: translateY(-200%);
  z-index: 100;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ===== 通用 ===== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--color-text);
}

.muted {
  color: var(--color-muted-text);
}

.hint {
  font-size: 0.85rem;
  color: var(--color-muted-text);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease;
}
.btn:hover {
  background: var(--color-primary-deep);
}
.btn:active {
  background: var(--color-primary-deep);
}
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary-deep);
}
.btn-ghost {
  background: transparent;
  color: var(--color-primary-deep);
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--color-primary-soft);
}
.btn-danger {
  background: transparent;
  color: var(--color-danger);
  border-color: var(--color-border);
}
.btn-danger:hover {
  background: #fdf0ee;
  border-color: var(--color-danger);
}
.btn-sm {
  padding: 0.3rem 0.7rem;
  font-size: 0.82rem;
}
.btn-block {
  width: 100%;
  justify-content: center;
}
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 标签/徽标 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
  font-size: 0.8rem;
  line-height: 1.3;
}
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.15rem;
  height: 1.15rem;
  padding: 0 0.3rem;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.72rem;
}

/* ===== 登录页 ===== */
.login-wrap {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: linear-gradient(160deg, #e6f6ef 0%, #f6faf8 55%, #ffffff 100%);
}
.login-card {
  width: 100%;
  max-width: 26rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}
.login-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.25rem;
}
.login-logo svg {
  color: var(--color-primary);
}
.login-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0;
}
.login-sub {
  color: var(--color-muted-text);
  font-size: 0.9rem;
  margin: 0.25rem 0 1.5rem;
}
.code-field {
  display: flex;
  gap: 0.4rem;
  justify-content: space-between;
  margin: 1rem 0;
}
.code-input {
  width: 100%;
  height: 3.1rem;
  text-align: center;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background: var(--color-surface);
}
.code-input:focus {
  border-color: var(--color-primary);
}
.login-note {
  font-size: 0.8rem;
  color: var(--color-muted-text);
  text-align: center;
  margin-top: 1rem;
}
.login-error {
  margin-top: 0.75rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  background: #fdf0ee;
  color: var(--color-danger);
  font-size: 0.85rem;
}
.demo-box {
  margin-top: 1.25rem;
  padding: 0.85rem;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-background);
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-muted-text);
}
.demo-box code {
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
  padding: 0.1rem 0.4rem;
  border-radius: 0.3rem;
  font-weight: 600;
}

/* ===== 工作台顶栏 ===== */
.workspace-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 1.25rem;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
}
.brand svg {
  color: var(--color-primary);
}
.header-spacer {
  flex: 1;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-muted-text);
}
.user-chip .dot {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
}

/* 反梦幻开关 */
.fantasy-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-muted-text);
}
.switch {
  position: relative;
  display: inline-block;
  width: 2.5rem;
  height: 1.4rem;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--color-border);
  border-radius: 999px;
  transition: background 0.2s;
}
.slider::before {
  content: "";
  position: absolute;
  height: 1.1rem;
  width: 1.1rem;
  left: 0.15rem;
  top: 0.15rem;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}
.switch input:checked + .slider {
  background: var(--color-primary);
}
.switch input:checked + .slider::before {
  transform: translateX(1.1rem);
}

/* ===== 流程胶囊进度条 ===== */
.steps {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin: 0.6rem 0 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.step {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  white-space: nowrap;
}
.step + .step::before {
  content: "";
  width: 1.6rem;
  height: 2px;
  background: var(--color-border);
  border-radius: 1px;
  flex-shrink: 0;
}
.step.done + .step::before,
.step.done ~ .step::before {
  background: var(--color-primary);
}
.step-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--color-muted-text);
  text-decoration: none;
  border: 1px solid transparent;
}
.step-link .step-dot {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--color-border);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 600;
}
.step.current .step-link {
  background: var(--color-primary);
  color: #fff;
}
.step.current .step-link .step-dot {
  background: rgba(255, 255, 255, 0.25);
}
.step.done .step-link {
  color: var(--color-primary-deep);
}
.step.done .step-link .step-dot {
  background: var(--color-primary);
}

/* ===== 内容区 ===== */
.workspace-main {
  padding: 1.5rem 1.25rem 3rem;
}
.page-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.card-head h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0;
}
.card-head .sub {
  color: var(--color-muted-text);
  font-size: 0.88rem;
  margin-top: 0.25rem;
}

/* ===== 作品信息 卡片四宫格 ===== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1rem;
}
.setting-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.setting-card .card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.setting-card .card-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.92rem;
}
.setting-card .card-label svg {
  color: var(--color-primary);
  flex-shrink: 0;
}
.setting-card .card-actions {
  display: inline-flex;
  gap: 0.2rem;
}
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-muted-text);
  cursor: pointer;
}
.icon-btn:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
}
.setting-card textarea,
.setting-card input {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem;
  font-size: 0.88rem;
  color: var(--color-text);
  background: var(--color-surface);
  resize: vertical;
  min-height: 2.4rem;
}
.setting-card textarea:focus,
.setting-card input:focus {
  border-color: var(--color-primary);
}
.author-first {
  border-left: 3px solid var(--color-primary);
  background: linear-gradient(180deg, #fbfefc 0%, var(--color-surface) 100%);
}
.author-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.72rem;
  color: var(--color-primary-deep);
  background: var(--color-primary-soft);
  padding: 0.12rem 0.4rem;
  border-radius: 999px;
  font-weight: 600;
}
.ai-suggest {
  font-size: 0.78rem;
  color: var(--color-muted-text);
  border-top: 1px dashed var(--color-border);
  padding-top: 0.5rem;
  margin-top: auto;
}
.ai-suggest button {
  background: none;
  border: none;
  color: var(--color-primary-deep);
  font-size: 0.78rem;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

/* ===== 详细设定 三tab ===== */
.tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1.25rem;
  overflow-x: auto;
}
.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1rem;
  border: none;
  background: none;
  color: var(--color-muted-text);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tab-btn:hover {
  color: var(--color-primary-deep);
}
.tab-btn.active {
  color: var(--color-primary-deep);
  border-bottom-color: var(--color-primary);
}
.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
}

/* 双栏：左列表 + 右表单 */
.split {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.25rem;
}
@media (max-width: 720px) {
  .split {
    grid-template-columns: 1fr;
  }
}
.list-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  overflow: hidden;
}
.list-panel .list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--color-border);
}
.list-panel .list-head input,
.list-panel .list-head select {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.55rem;
  font-size: 0.82rem;
}
.list-items {
  max-height: 60vh;
  overflow-y: auto;
}
.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.6rem 0.9rem;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.88rem;
}
.list-item:hover {
  background: var(--color-primary-soft);
}
.list-item.active {
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
  font-weight: 600;
}
.list-item .del {
  color: var(--color-danger);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.85rem;
  opacity: 0;
}
.list-item:hover .del {
  opacity: 1;
}
.list-empty {
  padding: 1.5rem;
  text-align: center;
  color: var(--color-muted-text);
  font-size: 0.85rem;
}

/* 表单 */
.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.field label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-muted-text);
  margin-bottom: 0.35rem;
  font-weight: 500;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.7rem;
  font-size: 0.9rem;
  color: var(--color-text);
  background: var(--color-surface);
}
.field textarea {
  resize: vertical;
  min-height: 4rem;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-primary);
  outline: none;
}
.form-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

/* 历史时空资产（一级公民） */
.history-banner {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-md);
  background: var(--color-primary-soft);
  border: 1px solid #cdeee0;
  color: var(--color-primary-deep);
  font-size: 0.88rem;
  margin-bottom: 1.25rem;
}
.history-banner .title {
  font-weight: 700;
}
.history-banner .desc {
  color: var(--color-muted-text);
}

/* ===== 故事大纲 ===== */
.outline-toolbar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.outline-split {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.25rem;
  align-items: start;
}
@media (max-width: 860px) {
  .outline-split {
    grid-template-columns: 1fr;
  }
}
.chapter-tree {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  overflow: hidden;
}
.tree-head {
  padding: 0.6rem 0.9rem;
  font-weight: 600;
  font-size: 0.9rem;
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
}
.tree-item {
  padding: 0.5rem 0.9rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.tree-item .count {
  color: var(--color-muted-text);
  font-size: 0.78rem;
}
.outline-doc {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}
.outline-doc h3 {
  font-size: 1.15rem;
  margin: 0 0 1rem;
}
.outline-doc .node {
  border-left: 3px solid var(--color-primary);
  padding: 0.6rem 0.9rem;
  margin: 0.75rem 0;
  background: var(--color-background);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.outline-doc .node .node-title {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.outline-doc .node p {
  margin: 0.4rem 0 0;
  color: var(--color-text);
  font-size: 0.9rem;
  line-height: 1.6;
}
.review-line {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--color-primary-deep);
  margin-left: auto;
}
.review-line svg {
  color: var(--color-primary);
}

/* ===== 章节创作 ===== */
.chapter-split {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.25rem;
  align-items: start;
}
@media (max-width: 860px) {
  .chapter-split {
    grid-template-columns: 1fr;
  }
}
.chapter-list-head {
  padding: 0.6rem 0.9rem;
  font-weight: 600;
  font-size: 0.9rem;
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
  display: flex;
  justify-content: space-between;
}
.chapter-status {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.72rem;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
}
.chapter-status.done {
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
}
.chapter-status.todo {
  background: #f0f2f1;
  color: var(--color-muted-text);
}
.ai-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.ai-bar .btn {
  font-size: 0.85rem;
}
.editor {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.editor-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
}
.editor-body {
  padding: 1.5rem;
}
.editor-body h3 {
  font-size: 1.1rem;
  margin: 0 0 0.75rem;
}
.editor-body p {
  line-height: 1.9;
  color: var(--color-text);
  font-size: 0.95rem;
  margin: 0 0 0.75rem;
}
.editor-body textarea {
  width: 100%;
  min-height: 26rem;
  border: none;
  resize: vertical;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--color-text);
  font-family: var(--font-body);
}
.editor-progress {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.82rem;
  color: var(--color-muted-text);
}
.progress-bar {
  height: 0.35rem;
  border-radius: 999px;
  background: var(--color-border);
  overflow: hidden;
  margin-top: 0.4rem;
}
.progress-bar .fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 999px;
  width: 18%;
}

/* 完成页 */
.done-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.done-stat {
  background: var(--color-primary-soft);
  border: 1px solid #cdeee0;
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
}
.done-stat .num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary-deep);
}
.done-stat .label {
  color: var(--color-muted-text);
  font-size: 0.85rem;
}

/* 通用反馈 */
.toast-holder {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.toast {
  background: #1f2b26;
  color: #fff;
  padding: 0.7rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  box-shadow: var(--shadow-md);
  animation: toast-in 0.2s ease;
}
@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}