/* 学校工具 · 错题变式卷生成器 —— 复用整站变量,风格与错题刷一致 */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 6vw;
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hairline);
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

.topbar__seal {
  width: 2rem;
  height: 2rem;
  object-fit: cover;
  border-radius: 7px;
  border: 1px solid var(--hairline);
  transform: rotate(4deg);
}

.topbar__tag {
  font-size: 0.85rem;
  color: var(--ash);
  letter-spacing: 0.1em;
}

.pagehead {
  text-align: center;
  padding: 4.5rem 6vw 2.5rem;
}

.pagehead__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--ink);
}

.pagehead__sub {
  margin: 1.1rem auto 0;
  max-width: 40rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ash);
}

.pagehead__sub em {
  font-style: normal;
  color: var(--vermilion-deep);
  font-weight: 600;
}

.wrap {
  max-width: 62rem;
  margin: 0 auto;
  padding: 0 6vw 5rem;
}

.panel {
  background: #fff;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  padding: 2rem 2.2rem;
  margin-top: 1.8rem;
  box-shadow: 0 2px 10px rgba(38, 34, 30, 0.04);
}

.panel__head {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin-bottom: 1.4rem;
}

.panel__no {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--vermilion);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
}

.panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.35rem;
  color: var(--ink);
}

.panel__hint {
  margin: -0.9rem 0 1.4rem;
  font-size: 0.85rem;
  color: var(--ash);
}

/* 上传卡片 */
.uploads {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}

@media (max-width: 780px) {
  .uploads { grid-template-columns: 1fr; }
}

.upcard {
  border: 1.5px dashed var(--hairline);
  border-radius: 12px;
  padding: 1.3rem 1.2rem;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  background: var(--paper);
}

.upcard:hover {
  border-color: var(--vermilion);
}

.upcard--filled {
  border-style: solid;
  border-color: var(--vermilion);
  background: #FDF3EE;
}

.upcard__name {
  margin: 0 0 0.35rem;
  font-weight: 800;
  font-size: 0.98rem;
  color: var(--ink);
}

.upcard__desc {
  margin: 0 0 0.8rem;
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--ash);
}

.upcard__file {
  display: block;
  font-size: 0.85rem;
  color: var(--ash);
  word-break: break-all;
}

.upcard--filled .upcard__file {
  color: var(--vermilion-deep);
  font-weight: 600;
}

.upcard input[type="file"] {
  display: none;
}

/* 链接与按钮 */
.rowlinks {
  margin-top: 1.3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
  font-size: 0.9rem;
}

.rowlinks a {
  color: var(--ash);
  font-weight: 600;
  border-bottom: 1px solid transparent;
}

.rowlinks a:hover {
  color: var(--vermilion-deep);
  border-color: currentColor;
}

.actions {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--hairline);
}

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

/* 校验清单 */
.checks {
  margin: 0;
  padding: 0;
  list-style: none;
}

.checks li {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  padding: 0.55rem 0;
  font-size: 0.95rem;
  border-bottom: 1px dashed var(--hairline);
}

.checks li:last-child { border-bottom: none; }

.checks .mark {
  flex: none;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 800;
  margin-top: 0.05rem;
}

.checks .ok .mark { background: #E4F2E6; color: #2E7D32; }
.checks .bad .mark { background: #FBE5DC; color: var(--vermilion-deep); }
.checks .ok { color: var(--ink); }
.checks .bad { color: var(--vermilion-deep); font-weight: 600; }

/* 错误面板 */
.errbox {
  display: none;
  margin-top: 1.4rem;
  border: 1.5px solid var(--vermilion);
  background: #FDF3EE;
  border-radius: 12px;
  padding: 1.4rem 1.5rem;
}

.errbox--show { display: block; }

.errbox__title {
  margin: 0 0 0.5rem;
  font-weight: 800;
  color: var(--vermilion-deep);
}

.errbox__msg {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--ink);
  white-space: pre-wrap;
}

.errbox__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

/* 进度日志 */
.progress {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.9rem;
  color: var(--ash);
  max-height: 15rem;
  overflow-y: auto;
}

.progress li {
  padding: 0.3rem 0;
  border-bottom: 1px dashed var(--hairline);
}

.progress li:last-child { border-bottom: none; }
.progress .done { color: #2E7D32; }

/* 结果 */
.result {
  display: none;
  text-align: center;
  padding: 1rem 0 0.4rem;
}

.result--show { display: block; }

.result__stats {
  margin: 0 0 1.4rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink);
}

.result__stats b { color: var(--vermilion-deep); }

.note {
  margin-top: 1.2rem;
  font-size: 0.82rem;
  color: var(--ash);
  line-height: 1.7;
}

/* 联系页 */
.contactcard {
  max-width: 26rem;
  margin: 3rem auto 0;
  text-align: center;
}

.contactcard p {
  font-size: 1.15rem;
  line-height: 2.2;
  color: var(--ink);
  margin: 0;
}

.contactcard b {
  font-family: var(--font-display);
}