/* MBTI 人格测试：限定 .mbt- 前缀，复用 /assets/style.css 与 workshop 的设计变量 */

/* 本模块用页内问答区，不再叠加全站悬浮助手入口 */
.mbt .ws-ai { display: none !important; }

.mbt .ts-main { padding-bottom: 56px; }

.mbt-warn {
  margin: 14px 0 0;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-sec);
  border-radius: 10px;
  background: var(--card);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted-fg);
}
.mbt-warn strong { color: var(--fg); }

.mbt-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 18px 0 0;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.mbt-nav__item {
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  font-size: 13px;
  color: var(--muted-fg);
  text-decoration: none;
}
.mbt-nav__item:hover { color: var(--accent); border-color: var(--accent-sec); }
.mbt-nav__item.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.mbt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid var(--accent);
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: opacity .18s var(--ease), transform .18s var(--ease);
}
.mbt-btn:hover { opacity: .9; }
.mbt-btn:active { transform: translateY(1px); }
.mbt-btn--ghost { background: var(--card); color: var(--fg); border-color: var(--border); }
.mbt-btn--ghost:hover { border-color: var(--accent-sec); color: var(--accent); opacity: 1; }
.mbt-btn[disabled] { opacity: .5; cursor: not-allowed; }

.mbt-kicker {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}
.mbt-page-title {
  font-family: var(--display);
  font-size: clamp(26px, 3.6vw, 34px);
  line-height: 1.25;
  margin: 0 0 10px;
}

/* hero */
.mbt-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: 30px 0 6px;
}
.mbt-hero__title {
  font-family: var(--display);
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1.22;
  margin: 0 0 12px;
}
.mbt-hero__lead {
  max-width: 60ch;
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted-fg);
}
.mbt-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted-fg);
}
.mbt-facts strong { color: var(--fg); font-size: 15px; }
.mbt-acts { display: flex; flex-wrap: wrap; gap: 10px; }
.mbt-hero__meta { margin: 14px 0 0; font-size: 12.5px; color: var(--muted-fg); }
.mbt-hero__side {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-content: start;
}
.mbt-dim-mini {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
}
.mbt-dim-mini__pair {
  display: block;
  font-family: var(--display);
  font-size: 18px;
  letter-spacing: .08em;
  color: var(--accent);
}
.mbt-dim-mini__name { display: block; margin-top: 4px; font-size: 12.5px; color: var(--muted-fg); }

/* 通用区块 */
.mbt-sec { margin: 36px 0 0; }
.mbt-sec--first { margin-top: 22px; }
.mbt-sec__title {
  font-family: var(--display);
  font-size: 21px;
  line-height: 1.3;
  margin: 0 0 8px;
}
.mbt-sec__lead { margin: 0 0 14px; font-size: 14px; line-height: 1.7; color: var(--muted-fg); max-width: 68ch; }
.mbt-sec p { font-size: 14.5px; line-height: 1.8; }
.mbt-sec > p + p { margin-top: 10px; }
.mbt-sec--note {
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
}
.mbt-empty__text { font-size: 14px; color: var(--muted-fg); }

.mbt-dims {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.mbt-dim {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
}
.mbt-dim__head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.mbt-dim__pair { font-family: var(--display); font-size: 16px; letter-spacing: .08em; color: var(--accent); }
.mbt-dim h3 { margin: 0; font-size: 16px; }
.mbt-dim__side { margin: 6px 0 0; font-size: 13.5px; line-height: 1.7; color: var(--muted-fg); }
.mbt-dim__side strong { display: inline-block; margin-right: 6px; color: var(--fg); }

/* 16 型分组 */
.mbt-groups { display: grid; grid-template-columns: 1fr; gap: 14px; }
.mbt-group { padding: 16px 18px; border: 1px solid var(--border); border-radius: 12px; background: var(--card); }
.mbt-group__head h3 { margin: 0 0 4px; font-size: 16px; }
.mbt-group__head p { margin: 0 0 12px; font-size: 13px; color: var(--muted-fg); }
.mbt-group__items { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; }

.mbt-type-chip {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg, #fff);
  text-decoration: none;
  color: inherit;
}
.mbt-type-chip:hover { border-color: var(--accent-sec); }
.mbt-type-chip__code { font-family: var(--display); font-size: 14px; letter-spacing: .06em; color: var(--accent); }
.mbt-type-chip__name { font-size: 12.5px; color: var(--muted-fg); }

.mbt-chips { display: flex; flex-wrap: wrap; gap: 8px; }

.mbt-cards { display: grid; grid-template-columns: 1fr; gap: 10px; }
.mbt-card {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  text-decoration: none;
  color: inherit;
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}
.mbt-card:hover { border-color: var(--accent-sec); transform: translateY(-1px); }
.mbt-card__fig { display: block; width: 56px; }
.mbt-card__body { display: grid; gap: 2px; min-width: 0; }
.mbt-card__code { font-family: var(--display); font-size: 17px; letter-spacing: .08em; color: var(--accent); }
.mbt-card__name { font-size: 14px; font-weight: 600; }
.mbt-card__tagline { font-size: 12.5px; line-height: 1.6; color: var(--muted-fg); }

/* 形象（内联 SVG） */
.mbt-figure { display: block; width: 100%; height: auto; }

/* 须知 / FAQ */
.mbt-tips { margin: 0; padding-left: 18px; }
.mbt-tips li { font-size: 14px; line-height: 1.8; color: var(--muted-fg); margin-bottom: 4px; }
.mbt-tips li::marker { color: var(--accent-sec); }
.mbt-faq { display: grid; gap: 8px; }
.mbt-faq details {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  padding: 12px 16px;
}
.mbt-faq summary { cursor: pointer; font-size: 14px; font-weight: 600; line-height: 1.6; }
.mbt-faq summary::marker { color: var(--accent); }
.mbt-faq p { margin: 8px 0 0; font-size: 13.5px; line-height: 1.8; color: var(--muted-fg); }

/* 答题页 */
.mbt-test__head { display: grid; gap: 8px; margin: 24px 0 16px; }
.mbt-test__title { font-family: var(--display); font-size: clamp(24px, 3.4vw, 30px); margin: 0; }
.mbt-test__lead { margin: 0; font-size: 14px; line-height: 1.7; color: var(--muted-fg); }
.mbt-test__alt { margin: 0; font-size: 12.5px; }
.mbt-test__alt a { color: var(--accent); text-decoration: none; }
.mbt-test__alt a:hover { text-decoration: underline; }
.mbt-test__hint { margin: 0; font-size: 12.5px; color: var(--muted-fg); }

.mbt-bar {
  position: sticky;
  top: 0;
  z-index: 5;
  height: 6px;
  border-radius: 99px;
  background: var(--border);
  overflow: hidden;
}
.mbt-bar__fill { display: block; height: 100%; width: 0; background: var(--accent); transition: width .25s var(--ease); }
.mbt-progress { margin: 10px 0 18px; font-size: 13px; color: var(--muted-fg); }

.mbt-form { margin: 0; }
.mbt-page { display: grid; gap: 12px; }
.mbt-page[hidden] { display: none; }
.mbt-q {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
}
.mbt-q.is-missing { border-color: #c2410c; box-shadow: 0 0 0 3px rgba(194, 65, 12, .12); }
.mbt-q__no { margin: 0 0 10px; font-size: 12px; color: var(--muted-fg); }
.mbt-q__stem { margin: -2px 0 12px; font-size: 14.5px; font-weight: 600; line-height: 1.7; }
.mbt-q__scale {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-areas:
    "left right"
    "pick pick";
  gap: 10px;
}
.mbt-q__end {
  grid-area: left;
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 14px;
  line-height: 1.5;
}
.mbt-q__end--r { grid-area: right; justify-content: flex-end; text-align: right; }
.mbt-q__letter {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 22px;
  padding: 0 5px;
  border-radius: 6px;
  background: rgba(4, 120, 87, .1);
  color: var(--accent);
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
}
.mbt-q__pick { grid-area: pick; display: grid; gap: 6px; }
.mbt-q__opts { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
.mbt-q__opt {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 46px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg, #fff);
  font-size: 14px;
  color: var(--muted-fg);
  cursor: pointer;
  transition: border-color .15s var(--ease), background .15s var(--ease), color .15s var(--ease);
}
.mbt-q__opt input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.mbt-q__opt:hover { border-color: var(--accent-sec); }
.mbt-q__opt:has(input:checked) { border-color: var(--accent); background: rgba(4, 120, 87, .1); color: var(--accent); font-weight: 700; }
.mbt-q__opt:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.mbt-q__num {
  font-family: var(--display);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  transition: transform .15s var(--ease);
}
.mbt-q__opt:has(input:checked) .mbt-q__num { transform: scale(1.18); }
.mbt-q__legend {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  margin: 0;
  font-size: 11px;
  line-height: 1.35;
  color: var(--muted-fg);
  text-align: center;
}
.mbt-q__legend span { display: block; }
.mbt-q__legend span:nth-child(3) { color: var(--fg); font-weight: 600; }

.mbt-test__acts { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 0; }
.mbt-test__note { margin: 14px 0 0; font-size: 12.5px; line-height: 1.7; color: var(--muted-fg); }
.mbt-error {
  margin: 16px 0 0;
  padding: 10px 14px;
  border: 1px solid #f2b8a2;
  border-radius: 10px;
  background: #fff5f0;
  color: #9a3412;
  font-size: 13.5px;
}
.mbt-sr {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* 结果页 */
.mbt-result__head {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  margin: 24px 0 8px;
}
.mbt-result__fig {
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(180deg, #fff, var(--card));
}
.mbt-result__intro { min-width: 0; }
.mbt-result__code {
  font-family: var(--display);
  font-size: clamp(44px, 9vw, 72px);
  letter-spacing: .12em;
  line-height: 1;
  margin: 0 0 10px;
  color: var(--accent);
}
.mbt-result__name { margin: 0 0 6px; font-size: 20px; font-weight: 600; }
.mbt-result__alias { margin-left: 10px; font-size: 13px; font-weight: 400; color: var(--muted-fg); }
.mbt-result__tagline { margin: 0; font-size: 15px; line-height: 1.7; color: var(--muted-fg); }

.mbt-result__dims { margin: 28px 0 0; }
.mbt-res__dim { margin: 0 0 16px; }
.mbt-res__dim-top { display: flex; justify-content: space-between; gap: 10px; font-size: 13px; color: var(--muted-fg); margin-bottom: 6px; }
.mbt-res__dim-top .is-strong { color: var(--fg); font-weight: 600; }
.mbt-res__track {
  display: flex;
  height: 12px;
  border-radius: 99px;
  overflow: hidden;
  background: var(--border);
}
.mbt-res__seg-a { background: #b8c2cc; }
.mbt-res__seg-b { background: var(--accent); }
.mbt-res__near { margin: 6px 0 0; font-size: 12.5px; color: #9a3412; }
.mbt-result__stat { font-size: 12.5px; color: var(--muted-fg); }

.mbt-type__summary { font-size: 15px; line-height: 1.85; }
.mbt-type__blocks { display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: 16px; }
.mbt-type__block { padding: 16px 18px; border: 1px solid var(--border); border-radius: 12px; background: var(--card); }
.mbt-type__block h2, .mbt-type__block h3 { margin: 0 0 8px; font-size: 15px; }
.mbt-type__block ul { margin: 0; padding-left: 18px; }
.mbt-type__block li { font-size: 13.5px; line-height: 1.8; color: var(--muted-fg); }
.mbt-type__block p { margin: 0; font-size: 14px; line-height: 1.8; color: var(--muted-fg); }

.mbt-sec__title--sub { margin-top: 26px; font-size: 16px; }

/* 页内 AI 问答区 */
.mbt-chat { margin: 30px 0 0; }
.mbt-chat__head { max-width: 68ch; }
.mbt-chat__kicker {
  margin: 0 0 6px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}
.mbt-chat__title {
  margin: 0 0 8px;
  font-family: var(--display);
  font-size: clamp(21px, 3vw, 26px);
  line-height: 1.3;
}
.mbt-chat__lead {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-fg);
}
.mbt-chat__panel {
  padding: 16px;
  border: 1px solid #bfdfd2;
  border-radius: 16px;
  background:
    radial-gradient(120% 90% at 100% 0%, #e9f6ef 0%, rgba(233, 246, 239, 0) 58%),
    #f7fbf9;
}
.mbt-chat__log {
  display: grid;
  gap: 12px;
  max-height: 380px;
  overflow-y: auto;
  padding: 2px 2px 12px;
  scrollbar-width: thin;
  scrollbar-color: #bfdfd2 transparent;
  overscroll-behavior: contain;
}
.mbt-chat__empty {
  margin: 0;
  padding: 14px 16px;
  border: 1px dashed #bfdfd2;
  border-radius: 12px;
  background: #fff;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted-fg);
}
.mbt-chat__msg {
  display: grid;
  gap: 4px;
  max-width: 88%;
}
.mbt-chat__msg--user { justify-self: end; justify-items: end; }
.mbt-chat__msg--bot { justify-self: start; justify-items: start; }
.mbt-chat__who { padding: 0 3px; font-size: 11.5px; color: var(--muted-fg); }
.mbt-chat__bubble {
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  border-top-left-radius: 4px;
  background: #fff;
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.mbt-chat__msg--user .mbt-chat__bubble {
  border-color: var(--accent);
  border-radius: 14px;
  border-top-right-radius: 4px;
  background: var(--accent);
  color: #fff;
}
.mbt-chat__typing { display: inline-flex; align-items: center; gap: 5px; min-height: 24px; }
.mbt-chat__typing i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #6ba892;
  animation: mbt-chat-dot 1.1s ease-in-out infinite;
}
.mbt-chat__typing i:nth-child(2) { animation-delay: .16s; }
.mbt-chat__typing i:nth-child(3) { animation-delay: .32s; }
@keyframes mbt-chat-dot {
  0%, 80%, 100% { opacity: .28; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-3px); }
}
.mbt-chat__chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 12px; }
.mbt-chat__chip {
  padding: 7px 13px;
  border: 1px solid #bfdfd2;
  border-radius: 999px;
  background: #fff;
  color: var(--accent);
  font: inherit;
  font-size: 12.5px;
  line-height: 1.4;
  cursor: pointer;
  transition: background .15s var(--ease), border-color .15s var(--ease);
}
.mbt-chat__chip:hover { background: rgba(4, 120, 87, .08); border-color: var(--accent-sec); }
.mbt-chat__chip:disabled { opacity: .5; cursor: not-allowed; }
.mbt-chat__form { display: grid; gap: 8px; }
.mbt-chat__input {
  box-sizing: border-box;
  width: 100%;
  min-height: 64px;
  max-height: 120px;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--fg);
  font: inherit;
  font-size: 14px;
  line-height: 1.7;
  resize: none;
}
.mbt-chat__input::placeholder { color: var(--muted-fg); opacity: .85; }
.mbt-chat__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(4, 120, 87, .12);
}
.mbt-chat__bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.mbt-chat__note { min-width: 0; font-size: 11.5px; line-height: 1.4; color: var(--muted-fg); }
.mbt-chat__send {
  flex: none;
  min-height: 40px;
  padding: 0 22px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s var(--ease);
}
.mbt-chat__send:hover { opacity: .9; }
.mbt-chat__send:disabled { opacity: .5; cursor: not-allowed; }
.mbt-chat__disc { margin: 10px 0 0; font-size: 11.5px; line-height: 1.7; color: var(--muted-fg); }
/* 结果页问答区嵌在 .mbt-sec 内，需更高权重，避免被 .mbt-sec p 的字号顶掉 */
.mbt-sec .mbt-chat__lead { font-size: 14px; line-height: 1.8; }
.mbt-sec .mbt-chat__empty { font-size: 13.5px; line-height: 1.75; }
.mbt-sec .mbt-chat__disc { font-size: 11.5px; line-height: 1.7; }
.mbt-sec .mbt-chat__err { font-size: 13px; line-height: 1.7; }
.mbt-chat__err {
  margin: 0;
  padding: 9px 12px;
  border: 1px solid #f2b8a2;
  border-radius: 10px;
  background: #fff5f0;
  color: #9a3412;
  font-size: 13px;
  line-height: 1.7;
}

/* 分层解释：大类卡 + 小类条目 */
.mbt-type__secs { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 16px; }
.mbt-sec-card { padding: 16px 18px 4px; border: 1px solid var(--border); border-radius: 14px; background: var(--card); }
.mbt-sec-card__head { display: flex; align-items: baseline; gap: 10px; margin: 0 0 12px; }
.mbt-sec-card__no { font-family: var(--display); font-size: 12px; letter-spacing: .1em; color: var(--accent); }
.mbt-sec-card__title { font-size: 15.5px; font-weight: 600; }
.mbt-sec-card__item { padding: 0 0 13px; }
.mbt-sec-card__item + .mbt-sec-card__item { margin-top: 0; padding-top: 13px; border-top: 1px dashed var(--border); }
.mbt-sec-card__item h3 { margin: 0 0 5px; font-size: 14px; }
.mbt-sec-card__item p { margin: 0; font-size: 13.5px; line-height: 1.85; color: var(--muted-fg); }

.mbt-result__acts { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.mbt-copy-note { margin: 0; font-size: 12.5px; color: var(--accent); }
.mbt-result__keep { margin: 18px 0 0; font-size: 12.5px; color: var(--muted-fg); word-break: break-all; }
.mbt-result__token { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--fg); }
.mbt-result__disc { margin: 10px 0 0; font-size: 12.5px; line-height: 1.7; color: var(--muted-fg); }

/* 单型页 */
.mbt-type__head {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  margin: 20px 0 6px;
}
.mbt-type__fig {
  padding: 5px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(180deg, #fff, var(--card));
}
.mbt-type__intro { min-width: 0; }
.mbt-type__code { font-family: var(--display); font-size: clamp(34px, 8vw, 60px); letter-spacing: .12em; line-height: 1; margin: 0 0 10px; color: var(--accent); }
.mbt-type__name { margin: 0 0 6px; font-size: 20px; font-weight: 600; }
.mbt-type__tagline { margin: 0; font-size: 15px; line-height: 1.7; color: var(--muted-fg); }
.mbt-type__acts { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 0; }
.mbt-type__src { margin: 14px 0 0; font-size: 12px; line-height: 1.7; color: var(--muted-fg); }

/* 单型页：关键词、格言、事实行、长文段 */
.mbt-type__meta { display: grid; gap: 12px; margin: 14px 0 18px; }
.mbt-type__kws { display: flex; flex-wrap: wrap; gap: 6px; }
.mbt-type__kw {
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  font-size: 12px;
  color: var(--muted-fg);
}
.mbt-type__motto {
  margin: 0;
  padding: 12px 16px;
  border-left: 3px solid var(--accent-sec);
  border-radius: 0 10px 10px 0;
  background: var(--card);
  font-size: 14.5px;
  line-height: 1.8;
}
.mbt-type__facts { display: grid; grid-template-columns: 1fr; gap: 8px 18px; margin: 0; }
.mbt-type__facts div { display: grid; grid-template-columns: 68px minmax(0, 1fr); gap: 8px; align-items: baseline; }
.mbt-type__facts dt { font-size: 12px; color: var(--muted-fg); }
.mbt-type__facts dd { margin: 0; font-size: 13.5px; line-height: 1.7; }
.mbt-type__ratio-note { margin: 0; font-size: 11.5px; line-height: 1.7; color: var(--muted-fg); }
.mbt-type__long { margin: 12px 0 0; font-size: 14.5px; line-height: 1.95; }

/* 功能栈 */
.mbt-stack { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 10px; counter-reset: mbtstack; }
.mbt-stack__item {
  position: relative;
  padding: 14px 16px 14px 46px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  counter-increment: mbtstack;
}
.mbt-stack__item::before {
  content: counter(mbtstack);
  position: absolute;
  left: 15px;
  top: 12px;
  font-family: var(--display);
  font-size: 17px;
  color: var(--accent);
}
.mbt-stack__item.is-lead { border-color: var(--accent-sec); box-shadow: inset 0 0 0 1px var(--accent-sec); }
.mbt-stack__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; margin: 0 0 6px; }
.mbt-stack__pos { padding: 1px 7px; border-radius: 999px; background: var(--accent); color: #fff; font-size: 11px; }
.mbt-stack__fn { font-family: var(--display); font-size: 16px; letter-spacing: .04em; color: var(--accent); }
.mbt-stack__name { font-size: 13.5px; font-weight: 600; }
.mbt-stack__desc { margin: 0; font-size: 13.5px; line-height: 1.85; color: var(--muted-fg); }

/* 成长练习 */
.mbt-growth { margin: 14px 0 0; padding-left: 1.2em; display: grid; gap: 8px; }
.mbt-growth li { font-size: 14px; line-height: 1.85; }

/* 易混淆类型 */
.mbt-conf { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 14px; }
.mbt-conf__item { padding: 14px 16px; border: 1px solid var(--border); border-radius: 14px; background: var(--card); }
.mbt-conf__head { display: flex; align-items: baseline; gap: 8px; margin: 0 0 6px; }
.mbt-conf__code { font-family: var(--display); font-size: 16px; letter-spacing: .06em; color: var(--accent); text-decoration: none; }
a.mbt-conf__code:hover { text-decoration: underline; }
.mbt-conf__name { font-size: 13px; color: var(--muted-fg); }
.mbt-conf__text { margin: 0; font-size: 13.5px; line-height: 1.85; color: var(--muted-fg); }

/* 理论栏目 */
.mbt-learn__hero { padding-top: 4px; }
.mbt-learn__acts { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 0; }
.mbt-sec .mbt-learn__more { margin: 14px 0 0; font-size: 13.5px; }
.mbt-learn__more a { color: var(--accent); text-decoration: none; }
.mbt-learn__more a:hover { text-decoration: underline; }

.mbt-fns { display: grid; grid-template-columns: 1fr; gap: 10px; }
.mbt-fn {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
}
.mbt-fn__head { display: flex; align-items: baseline; gap: 8px; margin: 0 0 6px; }
.mbt-fn__key { font-family: var(--display); font-size: 18px; letter-spacing: .06em; color: var(--accent); }
.mbt-fn__name { font-size: 14px; font-weight: 600; }
.mbt-fn__fam {
  margin-left: auto;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--muted-fg);
  white-space: nowrap;
}
.mbt-sec .mbt-fn__brief { margin: 0; font-size: 13px; line-height: 1.75; color: var(--muted-fg); }

.mbt-arts { display: grid; grid-template-columns: 1fr; gap: 10px; }
.mbt-art-card {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
  color: inherit;
  text-decoration: none;
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}
.mbt-art-card:hover { border-color: var(--accent-sec); transform: translateY(-1px); }
.mbt-art-card__kicker { font-size: 11.5px; letter-spacing: .04em; color: var(--accent); }
.mbt-art-card__title { font-size: 16px; font-weight: 600; line-height: 1.45; }
.mbt-art-card__summary { font-size: 13px; line-height: 1.7; color: var(--muted-fg); }
.mbt-art-card__tags { margin-top: 4px; font-size: 11.5px; color: var(--muted-fg); }

/* 文章页 */
.mbt-art { max-width: 760px; margin: 22px auto 0; }
.mbt-art__head { padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.mbt-art__title {
  font-family: var(--display);
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.28;
  margin: 0 0 12px;
}
.mbt-art__summary { margin: 0 0 12px; font-size: 15px; line-height: 1.8; color: var(--muted-fg); }
.mbt-art__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin: 0; font-size: 12.5px; color: var(--muted-fg); }
.mbt-art__tags { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.mbt-art__tags em {
  font-style: normal;
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 11.5px;
}
.mbt-art__body { margin: 8px 0 0; }
.mbt-art__body h2 { font-family: var(--display); font-size: 20px; line-height: 1.4; margin: 28px 0 10px; }
.mbt-art__body p { margin: 0 0 14px; font-size: 15px; line-height: 1.95; }
.mbt-art__body ul { margin: 0 0 16px; padding-left: 1.25em; display: grid; gap: 6px; }
.mbt-art__body li { font-size: 14.5px; line-height: 1.85; }
.mbt-art__note {
  margin: 18px 0;
  padding: 14px 16px;
  border-left: 3px solid var(--accent-sec);
  border-radius: 0 10px 10px 0;
  background: var(--card);
}
.mbt-art__note-label { display: block; margin-bottom: 6px; font-size: 11.5px; letter-spacing: .08em; color: var(--accent); }
.mbt-art__note p { margin: 0; font-size: 13.5px; line-height: 1.85; color: var(--muted-fg); }
.mbt-art__foot { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--border); }
.mbt-art__src { margin: 0 0 18px; font-size: 12px; line-height: 1.7; color: var(--muted-fg); }
.mbt-art__pager { display: grid; gap: 10px; margin: 0 0 22px; }
.mbt-art__pager-link {
  display: grid;
  gap: 3px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  color: inherit;
  text-decoration: none;
}
.mbt-art__pager-link:hover { border-color: var(--accent-sec); }
.mbt-art__pager-link span { font-size: 11.5px; letter-spacing: .04em; color: var(--accent); }
.mbt-art__pager-link strong { font-size: 14px; font-weight: 600; line-height: 1.5; }
.mbt-art__pager-link--next { text-align: right; }
.mbt-art__acts { display: flex; flex-wrap: wrap; gap: 10px; }

/* 空态 */
.mbt-empty { padding: 40px 0; text-align: center; }
.mbt-empty__title { font-family: var(--display); font-size: 22px; margin: 0 0 8px; }
.mbt-empty p { margin: 0 0 18px; font-size: 14px; color: var(--muted-fg); }
.mbt-empty__acts { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }

@media (max-width: 480px) {
  .mbt-chat__panel { padding: 13px; border-radius: 14px; }
  .mbt-chat__msg { max-width: 94%; }
  .mbt-chat__bubble { padding: 10px 12px; font-size: 13.5px; }
  .mbt-chat__note { display: none; }
  .mbt-chat__bar { justify-content: flex-end; }
  .mbt-chat__send { width: 100%; }
}

@media (min-width: 640px) {
  .mbt-dims { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mbt-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mbt-card { grid-template-columns: 64px minmax(0, 1fr); }
  .mbt-card__fig { width: 64px; }
  .mbt-result__head { grid-template-columns: 128px minmax(0, 1fr); gap: 20px; }
  .mbt-type__head { grid-template-columns: 112px minmax(0, 1fr); gap: 18px; }
  .mbt-q__legend { font-size: 11.5px; }
  .mbt-fns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mbt-arts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mbt-art__pager { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mbt-art__pager-link:only-child { grid-column: 1 / -1; }
}
@media (min-width: 900px) {
  .mbt-hero { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); align-items: start; }
  .mbt-groups { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mbt-type__blocks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mbt-type__secs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mbt-type__secs .mbt-sec-card:first-child { grid-column: 1 / -1; }
  .mbt-sec-card:first-child .mbt-sec-card__item p { font-size: 14px; }
  .mbt-cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .mbt-q__scale {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 1.25fr) minmax(0, 1fr);
    grid-template-areas: "left pick right";
    align-items: center;
  }
  .mbt-q__end--r { text-align: right; }
  .mbt-chat__panel { padding: 20px 22px; }
  .mbt-chat__log { max-height: 420px; }
  .mbt-chat__msg { max-width: 78%; }
}

@media (prefers-reduced-motion: reduce) {
  .mbt-btn, .mbt-card, .mbt-bar__fill, .mbt-chat__chip, .mbt-chat__send { transition: none; }
  .mbt-chat__typing i { animation: none; opacity: .6; }
}