:root {
  --paper: #FFFDF5;
  --ink: #2C2418;
  --ink-soft: #6B5F4E;
  --line: #E8E0CF;
  --line-strong: #D8CDB6;
  --accent: #8B5E3C;
  --accent-soft: #F3E9DC;
  --danger: #B4443A;
  --ok: #4A7C59;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(70, 55, 35, .06), 0 8px 24px rgba(70, 55, 35, .06);
}
* { box-sizing: border-box; }
/* 组件类里的 display 会盖掉 UA 的 [hidden]，必须显式压回去 */
[hidden] { display: none !important; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.7 "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-weight: 600; line-height: 1.35; }
button, input, select, textarea { font: inherit; color: inherit; }
.muted { color: var(--ink-soft); }
.small { font-size: 12.5px; }
.spacer { flex: 1; }
.pad { padding: 10px 4px; }

/* ---------------- 顶栏 ---------------- */
.nav {
  display: flex; align-items: center; gap: 20px;
  padding: 0 22px; height: 58px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 245, .92);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 50;
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 600; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  background: var(--accent); color: #fff; font-size: 15px;
}
.nav-links { display: flex; gap: 20px; font-size: 14px; color: var(--ink-soft); }
.nav-links a:hover { color: var(--ink); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav-user { font-size: 14px; color: var(--ink-soft); }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px; border-radius: 8px; border: 1px solid var(--line-strong);
  background: #fff; cursor: pointer; font-size: 14px; transition: .15s;
  white-space: nowrap;
}
.btn:hover { border-color: var(--accent); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #7A5234; }
.btn-ghost { background: transparent; }
.btn-danger { color: var(--danger); border-color: #E6C9C5; }
.btn-sm { padding: 5px 11px; font-size: 13px; }
.btn-lg { padding: 11px 24px; font-size: 15px; }
.btn-block { width: 100%; }
.icon-btn {
  background: none; border: none; cursor: pointer; color: var(--ink-soft);
  font-size: 17px; padding: 4px 7px; border-radius: 6px; line-height: 1;
}
.icon-btn:hover { background: var(--accent-soft); color: var(--ink); }
.mobile-only { display: none; }

/* ---------------- 分段控件 ---------------- */
.seg { display: inline-flex; border: 1px solid var(--line-strong); border-radius: 8px; overflow: hidden; background: #fff; }
.seg-btn {
  background: none; border: none; padding: 7px 14px; cursor: pointer;
  font-size: 13.5px; color: var(--ink-soft); display: flex; flex-direction: column; align-items: center; gap: 1px;
}
.seg-btn small { font-size: 11px; opacity: .7; }
.seg-btn + .seg-btn { border-left: 1px solid var(--line); }
.seg-btn.is-on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.seg-sm .seg-btn { padding: 5px 11px; font-size: 13px; }
.count { font-size: 11px; opacity: .7; }

/* ---------------- 表单 ---------------- */
.field { display: block; margin-bottom: 16px; }
.field > span { display: block; font-size: 13.5px; color: var(--ink-soft); margin-bottom: 6px; }
.field-inline { display: flex; align-items: center; gap: 8px; }
.field-inline > span { margin: 0; }
.input, textarea, select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line-strong);
  border-radius: 8px; background: #fff; outline: none; transition: .15s;
}
.input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.input-sm { padding: 6px 10px; font-size: 13.5px; }
textarea { resize: vertical; line-height: 1.75; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chip { display: inline-flex; align-items: center; gap: 5px; padding: 5px 11px; border: 1px solid var(--line-strong); border-radius: 999px; font-size: 13px; cursor: pointer; background: #fff; }
.chip input { margin: 0; }
.chip:has(input:checked) { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* ---------------- 页面骨架 ---------------- */
.page { max-width: 1120px; margin: 0 auto; padding: 34px 22px 80px; }
.page-narrow { max-width: 760px; }
.page-head { margin-bottom: 24px; }
.page-head h1 { font-size: 26px; }
.page-sub { color: var(--ink-soft); margin: 6px 0 0; font-size: 14px; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin-bottom: 20px; }
.panel-title { font-size: 16px; margin-bottom: 14px; }
.section-title { font-size: 19px; margin: 34px 0 16px; }
.toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.toolbar .input { width: auto; min-width: 200px; }
.input-select { min-width: 140px; }
.loading, .empty { color: var(--ink-soft); padding: 26px 4px; text-align: center; font-size: 14px; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag { font-size: 11.5px; padding: 2px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }

/* ---------------- 首页 ---------------- */
.hero { max-width: 760px; margin: 0 auto; padding: 76px 22px 40px; text-align: center; }
.hero-kicker { color: var(--accent); font-size: 13px; letter-spacing: .12em; margin: 0 0 14px; }
.hero-title { font-size: 46px; line-height: 1.25; letter-spacing: -.02em; }
.hero-sub { color: var(--ink-soft); font-size: 16px; margin: 20px 0 30px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.steps { max-width: 1120px; margin: 40px auto 0; padding: 0 22px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.step-no { font-size: 12px; color: var(--accent); letter-spacing: .1em; margin-bottom: 10px; }
.step h3 { font-size: 16px; margin-bottom: 8px; }
.step p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.teasers { max-width: 1120px; margin: 0 auto; padding: 0 22px 80px; }

/* ---------------- 卡片 ---------------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(268px, 1fr)); gap: 16px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; }
.card-hover { transition: .16s; }
.card-hover:hover { border-color: var(--line-strong); box-shadow: var(--shadow); transform: translateY(-1px); }
.card-main { flex: 1; }
.card-title { font-size: 16px; margin-bottom: 6px; }
.card-meta { font-size: 13px; color: var(--ink-soft); margin: 0 0 8px; }
.card-excerpt {
  font-size: 13.5px; color: var(--ink-soft); margin: 0; line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.card-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); }
.btn-mini { background: none; border: none; cursor: pointer; font-size: 12.5px; color: var(--ink-soft); padding: 3px 2px; }
.btn-mini:hover { color: var(--accent); }
.btn-mini-danger:hover { color: var(--danger); }
.mini-toggle { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; color: var(--ink-soft); cursor: pointer; }
.pin { font-size: 11px; background: var(--accent); color: #fff; padding: 1px 6px; border-radius: 4px; margin-right: 6px; vertical-align: 2px; }

/* ---------------- 书本卡 ---------------- */
.book { display: flex; gap: 14px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; transition: .16s; }
.book:hover { border-color: var(--line-strong); box-shadow: var(--shadow); }
.book-cover {
  width: 54px; height: 72px; flex: none; border-radius: 6px; display: grid; place-items: center;
  color: #fff; font-size: 17px; font-weight: 600; letter-spacing: .04em;
}
.book-cover-lg { width: 86px; height: 116px; font-size: 24px; }
.book-body { min-width: 0; flex: 1; }
.book-title { font-size: 15.5px; margin-bottom: 5px; }
.book-sum { font-size: 13px; color: var(--ink-soft); margin: 0 0 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.book-foot { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; font-size: 12px; }

/* ---------------- 原作详情 ---------------- */
.novel-head { display: flex; gap: 20px; margin-bottom: 26px; }
.novel-head h1 { font-size: 26px; margin-bottom: 10px; }
.novel-meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; font-size: 13px; margin: 0 0 16px; }
.novel-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.parse-panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 20px; }
.parse-bar { height: 6px; background: var(--accent-soft); border-radius: 999px; overflow: hidden; }
.parse-bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .4s; }
.parse-text { margin: 10px 0 0; font-size: 13.5px; color: var(--ink-soft); }
.archive-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.archive-item { border: 1px solid var(--line); border-radius: 8px; margin-bottom: 8px; background: #fff; }
.archive-item summary { cursor: pointer; padding: 11px 14px; font-weight: 500; font-size: 14.5px; }
.archive-item[open] summary { border-bottom: 1px solid var(--line); }
.archive-content { padding: 13px 14px; font-size: 14px; color: var(--ink-soft); white-space: pre-wrap; }
.prose { white-space: pre-wrap; line-height: 1.85; font-size: 14.5px; }

/* ---------------- 选原作 ---------------- */
.novel-picker { max-height: 320px; overflow-y: auto; border: 1px solid var(--line); border-radius: 8px; padding: 6px; background: #fff; }
.novel-option {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  background: none; border: none; padding: 9px 11px; border-radius: 7px; cursor: pointer; font-size: 14px;
}
.novel-option:hover { background: var(--paper); }
.novel-option.is-on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.no-title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.no-meta { font-size: 12px; color: var(--ink-soft); }
.picked { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 10px; }
.picked-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 13px; }
.picked-chip button { background: none; border: none; cursor: pointer; color: inherit; font-size: 15px; line-height: 1; padding: 0; }
.idea-list { display: flex; flex-direction: column; gap: 8px; }
.idea-chip { text-align: left; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 11px 14px; cursor: pointer; font-size: 13.5px; color: var(--ink-soft); line-height: 1.65; }
.idea-chip:hover { border-color: var(--accent); color: var(--ink); }

/* ---------------- 登录 ---------------- */
.auth-body { background: linear-gradient(180deg, #FFFDF5 0%, #FBF6EA 100%); }
.auth-wrap { min-height: calc(100vh - 58px); display: grid; place-items: center; padding: 40px 20px; }
.auth-card { width: 100%; max-width: 380px; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 32px; box-shadow: var(--shadow); }
.auth-title { font-size: 22px; margin-bottom: 6px; }
.auth-sub { color: var(--ink-soft); font-size: 13.5px; margin: 0 0 24px; }
.auth-msg { color: var(--danger); font-size: 13.5px; min-height: 20px; margin-bottom: 8px; }
.auth-switch { text-align: center; font-size: 13.5px; color: var(--ink-soft); margin: 18px 0 0; }
.auth-switch a { color: var(--accent); font-weight: 600; }

/* ---------------- 弹窗 ---------------- */
.modal { position: fixed; inset: 0; background: rgba(44, 36, 24, .38); display: grid; place-items: center; z-index: 100; padding: 20px; }
.modal[hidden] { display: none; }
.modal-card { background: #fff; border-radius: 14px; padding: 26px; width: 100%; max-width: 540px; max-height: 88vh; overflow-y: auto; }
.modal-card h2 { font-size: 19px; margin-bottom: 6px; }
.modal-sub { color: var(--ink-soft); font-size: 13.5px; margin: 0 0 18px; }
.modal-msg { color: var(--danger); font-size: 13.5px; min-height: 20px; margin-bottom: 6px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 8px; }
.upload-progress { margin: 14px 0 6px; }
.upload-progress .bar { height: 6px; background: var(--accent-soft); border-radius: 999px; overflow: hidden; }
.upload-progress .bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .3s; }
.upload-progress span { font-size: 12.5px; color: var(--ink-soft); }

/* ---------------- 分页 / 统计 / 表格 ---------------- */
.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 28px; }
.pager-info { font-size: 13px; color: var(--ink-soft); }
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 22px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.stat b { display: block; font-size: 24px; font-weight: 600; }
.stat span { font-size: 13px; color: var(--ink-soft); }
.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data-table th, .data-table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
.data-table th { color: var(--ink-soft); font-weight: 500; font-size: 12.5px; }

/* ---------------- 阅读页 ---------------- */
.read-body { background: #FCFAF3; }
.reader { display: grid; grid-template-columns: 260px 1fr; min-height: calc(100vh - 58px); }
.reader-toc { border-right: 1px solid var(--line); padding: 22px 14px; overflow-y: auto; position: sticky; top: 58px; height: calc(100vh - 58px); }
.toc-title { font-size: 13px; color: var(--ink-soft); padding: 0 10px 12px; }
.reader-toc a { display: block; padding: 8px 10px; border-radius: 7px; font-size: 13.5px; color: var(--ink-soft); }
.reader-toc a:hover { background: var(--accent-soft); }
.reader-toc a.is-on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.reader-main { max-width: 720px; padding: 44px 40px 100px; }
.reader-head h1 { font-size: 28px; }
.reader-sub { color: var(--ink-soft); font-size: 14px; margin: 8px 0 16px; }
.reader-actions { display: flex; gap: 8px; margin-bottom: 34px; }
.reader-content { font-size: 16.5px; line-height: 2; }
.reader-content p { margin: 0 0 1.2em; text-indent: 2em; }
.reader-chapter-title { font-size: 20px; margin: 0 0 26px; text-indent: 0; }

/* ---------------- 工作台 ---------------- */
.ws-body { height: 100vh; overflow: hidden; }
.ws-body .nav { display: none; }
.ws {
  display: grid;
  grid-template-columns: var(--left-w) 5px 1fr 5px var(--right-w);
  height: 100vh; overflow: hidden;
}
.ws.hide-left { grid-template-columns: 0 0 1fr 5px var(--right-w); }
.ws.hide-left .ws-left, .ws.hide-left .ws-handle[data-resize=left] { display: none; }
.ws.hide-right { grid-template-columns: var(--left-w) 5px 1fr 0 0; }
.ws.hide-right .ws-right, .ws.hide-right .ws-handle[data-resize=right] { display: none; }
.ws-pane { overflow: hidden; display: flex; flex-direction: column; min-width: 0; }
.ws-left { border-right: 1px solid var(--line); background: #FDFBF4; }
.ws-right { border-left: 1px solid var(--line); background: #FDFBF4; }
.ws-handle { cursor: col-resize; background: transparent; transition: background .15s; }
.ws-handle:hover { background: var(--accent-soft); }
.ws-left-head, .ws-right-head {
  display: flex; align-items: center; gap: 8px; padding: 10px 10px 8px;
  border-bottom: 1px solid var(--line); flex-wrap: wrap;
}
.ws-left-head > .icon-btn, .ws-right-head > .icon-btn { margin-left: auto; }
.ws-left-head .seg-btn { padding: 5px 8px; font-size: 12.5px; }
.ws-right-head .seg-btn { padding: 5px 10px; }
.ws-left-body { flex: 1; overflow-y: auto; padding: 12px; }
.tab-panel { min-height: 0; }
.ws-left .tab-panel { display: flex; flex-direction: column; gap: 10px; }
.toc-list { list-style: none; margin: 0; padding: 0; }
.toc-list a { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 7px; font-size: 13.5px; }
.toc-list a:hover { background: var(--accent-soft); }
.toc-list a.is-on { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.toc-no { flex: none; font-size: 12px; color: var(--ink-soft); }
.toc-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.toc-w { font-size: 11.5px; color: var(--ink-soft); }

.ws-chat { background: #fff; }
.ws-head { display: flex; align-items: center; gap: 12px; padding: 11px 16px; border-bottom: 1px solid var(--line); }
.ws-title { display: flex; align-items: center; gap: 6px; min-width: 0; }
.ws-title h1 { font-size: 16px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ws-head-right { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.chat-scroll { flex: 1; overflow-y: auto; padding: 22px 26px; }
.chat-stream { max-width: 760px; margin: 0 auto; }
.chat-empty { text-align: center; color: var(--ink-soft); padding: 70px 20px; }
.chat-empty h3 { font-size: 17px; color: var(--ink); margin-bottom: 10px; }
.chat-empty p { margin: 0 0 8px; font-size: 14px; }
.msg { margin-bottom: 22px; }
.msg-role { font-size: 12px; color: var(--ink-soft); margin-bottom: 6px; }
.msg-user .msg-body { background: var(--accent-soft); border-radius: 10px; padding: 11px 15px; display: inline-block; }
.msg-assistant .msg-body { font-size: 15px; line-height: 1.85; }
.msg-body h2, .msg-body h3, .msg-body h4 { margin: 14px 0 8px; }
.msg-body p { margin: 0 0 10px; }
.msg-body ul, .msg-body ol { margin: 0 0 10px; padding-left: 22px; }
.msg-body blockquote { margin: 0 0 10px; padding-left: 12px; border-left: 3px solid var(--line-strong); color: var(--ink-soft); }
.msg-body code { background: var(--paper); padding: 1px 5px; border-radius: 4px; font-size: .9em; }
.msg-body hr { border: none; border-top: 1px solid var(--line); margin: 16px 0; }
.msg-tool { font-size: 12.5px; color: var(--ink-soft); margin: -14px 0 16px; padding-left: 2px; }

.composer { border-top: 1px solid var(--line); padding: 12px 26px 16px; }
.status-line { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-soft); margin-bottom: 8px; }
.spinner { width: 13px; height: 13px; border: 2px solid var(--line-strong); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.composer textarea { max-height: 220px; }
.composer-actions { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 8px; }
.composer-actions > div { display: flex; gap: 8px; }

.ws-right .tab-panel { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.doc-fields { display: flex; flex-direction: column; gap: 8px; padding: 12px; }
.doc-editor {
  flex: 1; border: none; border-radius: 0; background: transparent;
  padding: 4px 18px 18px; font-size: 15px; line-height: 1.95; resize: none;
}
.doc-editor:focus { box-shadow: none; }
.doc-foot { padding: 8px 16px; border-top: 1px solid var(--line); }

/* ---------------- 移动端 ---------------- */
@media (max-width: 900px) {
  .mobile-only { display: inline-flex; }
  .nav { padding: 0 14px; gap: 12px; }
  .nav-links { display: none; }
  .hero { padding: 48px 18px 24px; }
  .hero-title { font-size: 32px; }
  .steps { grid-template-columns: 1fr; padding: 0 18px; }
  .page { padding: 24px 16px 70px; }
  .card-grid { grid-template-columns: 1fr; }
  .novel-head { flex-direction: column; gap: 14px; }

  .ws { grid-template-columns: 1fr; grid-template-rows: 1fr; }
  .ws-handle { display: none; }
  .ws-left, .ws-right {
    position: fixed; inset: 58px 0 0 0; z-index: 60; background: var(--paper);
    display: none;
  }
  .ws-left.is-open, .ws-right.is-open { display: flex; }
  .ws-body .nav { display: flex; }
  .ws { height: calc(100vh - 58px); }
  .chat-scroll { padding: 16px; }
  .composer { padding: 10px 14px 14px; }
  .composer-actions .muted { display: none; }

  .reader { grid-template-columns: 1fr; }
  .reader-toc { position: static; height: auto; border-right: none; border-bottom: 1px solid var(--line); }
  .reader-main { padding: 26px 18px 80px; }
  .reader-content { font-size: 16px; }
}