:root {
  --ink: #172018;
  --ink-soft: #3e4a40;
  --muted: #758173;
  --canvas: #f4f2ff;
  --paper: rgba(255, 252, 242, 0.9);
  --paper-solid: #fffaf0;
  --line: rgba(32, 42, 34, 0.14);
  --moss: #6a3ff0;
  --moss-2: #8a5cff;
  --saffron: #ff9f00;
  --clay: #ff5a1f;
  --sky: #1687e0;
  --pink: #ed5b91;
  --violet: #7449f5;
  --teal: #12a979;
  --shadow: 0 28px 80px rgba(32, 42, 34, 0.16);
  --soft-shadow: 0 16px 40px rgba(32, 42, 34, 0.1);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  background:
    linear-gradient(rgba(116, 73, 245, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(116, 73, 245, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 12% 10%, rgba(255, 159, 0, 0.28), transparent 30%),
    radial-gradient(circle at 86% 6%, rgba(237, 91, 145, 0.24), transparent 28%),
    linear-gradient(135deg, #fff3f8 0%, #f4f2ff 48%, #eef8ff 100%);
  background-size: 34px 34px, 34px 34px, auto, auto, auto;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at center, transparent 0 45%, rgba(42, 52, 43, 0.1) 100%),
    linear-gradient(115deg, rgba(255, 255, 255, 0.42), transparent 42%, rgba(255, 255, 255, 0.22));
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

textarea,
input {
  color: var(--ink);
}

.ambient {
  position: fixed;
  z-index: -2;
  width: 340px;
  height: 340px;
  border-radius: 999px;
  filter: blur(12px);
  opacity: 0.55;
  pointer-events: none;
}

.ambient-a {
  top: -110px;
  left: -90px;
  background: repeating-linear-gradient(45deg, rgba(255, 159, 0, 0.32) 0 12px, transparent 12px 24px);
}

.ambient-b {
  right: -130px;
  bottom: 14%;
  background: repeating-linear-gradient(-45deg, rgba(124, 92, 255, 0.26) 0 10px, transparent 10px 22px);
}

/* ============ 顶部条 ============ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 12px clamp(16px, 3vw, 30px);
  border-bottom: 1px solid var(--line);
  background: rgba(252, 250, 255, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--violet), var(--pink));
  color: #fff;
  font-size: 22px;
  box-shadow: 0 8px 20px rgba(124, 92, 255, 0.32);
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-text strong {
  color: #2a2350;
  font-size: 17px;
  font-weight: 800;
}

.brand-text span {
  color: var(--muted);
  font-size: 12px;
}

.topbar-status {
  display: flex;
  gap: 10px;
  align-items: center;
  min-width: 0;
  margin-left: auto;
  padding: 5px 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.topbar-status:hover {
  border-color: var(--line);
  background: rgba(124, 92, 255, 0.06);
}

.status-caret {
  flex-shrink: 0;
  font-size: 14px;
  opacity: 0.7;
}

.status-pill {
  display: inline-flex;
  flex-shrink: 0;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.14);
  color: var(--violet);
  font-size: 13px;
  font-weight: 800;
}

.status-line {
  overflow: hidden;
  color: var(--ink-soft);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

/* ============ 左右分栏工作台 ============ */
.workbench {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 18px;
  align-items: stretch;
  height: calc(100vh - 67px);
  padding: 18px clamp(16px, 3vw, 30px);
}

.panel,
.config-card {
  border: 1px solid var(--line);
  background: rgba(252, 250, 255, 0.92);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-radius: var(--radius-xl);
  padding: clamp(16px, 2vw, 24px);
}

.eyebrow,
.section-kicker,
.card-label {
  margin: 0 0 6px;
  color: var(--violet);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.15;
  color: #2a2350;
}

/* 左栏可滚动区，底部按钮固定 */
.work-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding-right: 6px;
}

.work-input .action-row {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

/* 右栏结果区撑满并独立滚动 */
.work-output .output-box {
  flex: 1;
  min-height: 0;
  max-height: none;
  margin-top: 4px;
}

/* 结果面板全屏查看 */
.work-output.is-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 60;
  margin: 0;
  border-radius: 0;
  border: 0;
}

.work-output.is-fullscreen .output-box {
  border-radius: 0;
}

body.fullscreen-open {
  overflow: hidden;
}

.panel-head {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.field-label {
  display: block;
  margin: 0 0 10px;
  color: var(--ink-soft);
  font-weight: 900;
}

.question-box {
  width: 100%;
  min-height: 180px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  outline: none;
  resize: vertical;
  background:
    linear-gradient(rgba(37, 77, 54, 0.035) 1px, transparent 1px),
    rgba(255, 255, 255, 0.68);
  background-size: 100% 32px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.68);
  line-height: 2;
}

.question-box::placeholder {
  color: rgba(62, 74, 64, 0.58);
}

.question-box:focus,
input:focus,
.type-grid select:focus,
.prompt-box textarea:focus {
  border-color: rgba(37, 77, 54, 0.54);
  box-shadow: 0 0 0 5px rgba(37, 77, 54, 0.12);
}

.type-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.type-grid label {
  display: grid;
  gap: 8px;
  color: var(--ink-soft);
  font-weight: 900;
}

.type-grid select {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid rgba(116, 73, 245, 0.22);
  border-radius: 18px;
  outline: none;
  background: linear-gradient(135deg, rgba(237, 91, 145, 0.12), rgba(116, 73, 245, 0.1)), #fff;
  color: var(--ink);
  font-weight: 800;
}

.upload-card {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  margin-top: 18px;
  padding: 18px;
  border: 1.5px dashed rgba(37, 77, 54, 0.35);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(217, 144, 47, 0.12), rgba(86, 125, 143, 0.12)),
    rgba(255, 255, 255, 0.55);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.upload-card.dragging {
  border-color: var(--saffron);
  background: rgba(255, 247, 226, 0.94);
  transform: translateY(-2px);
}

.upload-card input {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

.upload-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 16px;
  background: var(--moss);
  color: #fff7e8;
  font-size: 30px;
  line-height: 1;
  box-shadow: 0 12px 24px rgba(37, 77, 54, 0.22);
}

.upload-card strong {
  font-size: 18px;
}

.upload-card p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.file-list {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}

.file-item {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 11px 12px 11px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.62);
  color: var(--ink-soft);
  font-size: 14px;
}

.action-row,
.output-actions,
.config-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.action-row {
  margin-top: 22px;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.icon-btn {
  border: 0;
  border-radius: 999px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.primary-btn {
  padding: 14px 24px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), transparent),
    linear-gradient(135deg, var(--moss-2), var(--moss));
  color: #fff7e8;
  box-shadow: 0 16px 32px rgba(37, 77, 54, 0.26);
  font-weight: 900;
}

.secondary-btn,
.ghost-btn {
  padding: 12px 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink);
  font-weight: 850;
}

.ghost-btn {
  background: rgba(217, 144, 47, 0.13);
  color: #7b4719;
}

.primary-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--soft-shadow);
}

.primary-btn:disabled,
.secondary-btn:disabled {
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
  box-shadow: none;
}

.prompt-box {
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.48);
  overflow: hidden;
}

.prompt-box summary {
  padding: 15px 18px;
  cursor: pointer;
  color: var(--moss);
  font-weight: 900;
}

.prompt-box textarea {
  width: 100%;
  min-height: 220px;
  padding: 18px;
  border: 0;
  border-top: 1px solid var(--line);
  resize: vertical;
  outline: none;
  background: rgba(255, 255, 255, 0.66);
  color: var(--ink-soft);
  line-height: 1.75;
}

.prompt-box,
.flow-box {
  margin-top: 16px;
}

.flow-box summary {
  padding: 14px 16px;
  cursor: pointer;
  color: var(--violet);
  font-weight: 900;
}

.flow-box {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.48);
  overflow: hidden;
}

.flow-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0 16px 16px;
  list-style: none;
  color: var(--ink-soft);
  line-height: 1.6;
}

.flow-list li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px;
  border: 1px solid rgba(37, 77, 54, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.48);
}

.flow-list span {
  display: inline-grid;
  height: 34px;
  place-items: center;
  border-radius: 999px;
  background: rgba(37, 77, 54, 0.1);
  color: var(--moss);
  font-weight: 900;
}

.output-box {
  min-height: 0;
  margin: 0;
  padding: 22px;
  overflow: auto;
  word-break: break-word;
  border: 1px solid rgba(37, 77, 54, 0.12);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 8% -4%, rgba(255, 209, 102, 0.16), transparent 26%),
    radial-gradient(circle at 98% 2%, rgba(124, 92, 255, 0.12), transparent 30%),
    linear-gradient(160deg, #fbfaff 0%, #f5f7ff 55%, #eef8ff 100%);
  color: #2c3444;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.8;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.output-box h3 {
  margin: 0 0 10px;
  color: #2a2350;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.output-box h4 {
  margin: 16px 0 8px;
  color: #524a88;
  font-size: 16px;
  font-weight: 800;
}

.output-box h5 {
  margin: 12px 0 6px;
  color: #5a6072;
  font-size: 14px;
  font-weight: 800;
}

.output-box p {
  margin: 0 0 10px;
}

.output-box ul,
.output-box ol {
  margin: 10px 0;
  padding-left: 22px;
}

.output-box li {
  margin: 4px 0;
}

.output-box strong,
.output-box b {
  color: #1f2733;
  font-weight: 800;
}

.output-box hr {
  height: 1px;
  margin: 16px 0;
  border: 0;
  background: linear-gradient(90deg, transparent, rgba(120, 100, 200, 0.28), transparent);
}

.output-empty,
.loading-card,
.answer-card,
.warn-card {
  border: 1px solid var(--line);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--soft-shadow);
}

.output-empty {
  padding: 34px;
  text-align: center;
}

.output-empty strong {
  display: block;
  font-size: 26px;
}

.output-empty p {
  margin: 10px auto 0;
  max-width: 520px;
  color: var(--muted);
}

.loading-card {
  display: grid;
  gap: 18px;
  padding: 28px;
}

.loader-orbit {
  width: 54px;
  height: 54px;
  border: 5px solid rgba(37, 77, 54, 0.14);
  border-top-color: var(--saffron);
  border-right-color: var(--moss);
  border-radius: 999px;
  animation: spin 0.9s linear infinite;
}

.loading-label {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(217, 144, 47, 0.16);
  color: #7b4719;
  font-weight: 900;
}

.loading-card h3 {
  margin: 12px 0 6px;
  font-size: 28px;
}

.loading-card p {
  margin: 0;
  color: var(--ink-soft);
}

.progress-track {
  position: relative;
  height: 12px;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.12);
  overflow: hidden;
}

.progress-track span {
  position: relative;
  display: block;
  height: 100%;
  border-radius: inherit;
  /* 流动的彩色渐变（比条本身宽，靠动画平移形成流动感） */
  background: linear-gradient(90deg,
    var(--violet), var(--pink), var(--saffron), var(--sky), var(--violet));
  background-size: 300% 100%;
  animation: progress-flow 2.2s linear infinite;
  transition: width 0.5s ease;
}

/* 叠一层斜向滚动的高光条纹 */
.progress-track span::after {
  position: absolute;
  inset: 0;
  content: "";
  background: repeating-linear-gradient(115deg,
    rgba(255, 255, 255, 0.32) 0 12px,
    transparent 12px 30px);
  background-size: 42px 100%;
  animation: progress-stripes 0.9s linear infinite;
}

/* 进度条末端的光点，随流动微微呼吸 */
.progress-track span::before {
  position: absolute;
  top: 50%;
  right: 2px;
  width: 8px;
  height: 8px;
  content: "";
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 0 10px 3px rgba(255, 255, 255, 0.8);
  transform: translateY(-50%);
  animation: progress-glow 1.1s ease-in-out infinite;
}

.loading-steps,
.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.loading-steps span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(86, 125, 143, 0.12);
  color: #345869;
  font-weight: 850;
}

.loading-steps span:nth-child(5n + 1) {
  background: var(--pink);
  color: white;
}

.loading-steps span:nth-child(5n + 2) {
  background: var(--violet);
  color: white;
}

.loading-steps span:nth-child(5n + 3) {
  background: var(--sky);
  color: white;
}

.loading-steps span:nth-child(5n + 4) {
  background: var(--teal);
  color: white;
}

.loading-steps span:nth-child(5n) {
  background: var(--clay);
  color: white;
}

/* ============ 解析结果卡片系统（参考图风格）============ */
.answer-card {
  position: relative;
  margin: 0 0 16px;
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid rgba(124, 92, 255, 0.14);
  border-radius: 20px;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(60, 50, 120, 0.07);
}

.answer-card + .answer-card {
  margin-top: 18px;
}

/* 题号 / 小节标题：带 emoji 圆标的胶囊标题 */
.answer-card h3,
.output-box h3 {
  display: flex;
  gap: 9px;
  align-items: center;
  margin: 0 0 12px;
  color: #2a2350;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.answer-card h4,
.output-box h4 {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 16px 0 8px;
  padding-left: 11px;
  border-left: 4px solid var(--violet);
  color: #4a3fa0;
  font-size: 15px;
  font-weight: 800;
}

.answer-card p {
  margin: 0 0 10px;
  color: #38404f;
}

/* 卡片顶部的分类徽标条 */
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0 0 12px;
}

/* 卡片顶部的题目原文区 */
.question-recap {
  margin: 0 0 14px;
  padding: 12px 14px 12px 16px;
  border-left: 4px solid var(--sky);
  border-radius: 12px;
  background: #f2f6fc;
  color: #384357;
  font-size: 14px;
  line-height: 1.7;
}

.question-recap::before {
  display: block;
  margin-bottom: 4px;
  color: var(--sky);
  content: "📄 题目";
  font-size: 12px;
  font-weight: 800;
}

.question-recap p {
  margin: 0 0 6px;
}

.question-recap p:last-child {
  margin-bottom: 0;
}

/* 题意转化 / 关键条件高亮盒（黄） */
.answer-hero {
  margin: 0 0 14px;
  padding: 15px 18px;
  border-radius: 16px;
  border-left: 5px solid var(--saffron);
  background: linear-gradient(135deg, #fff6d8, #fffbef);
}

.answer-hero h3,
.answer-hero h4 {
  border: 0;
  padding: 0;
  color: #8a5a00;
}

.answer-hero p:last-child {
  margin-bottom: 0;
}

/* 提示卡（紫） */
.tip-card {
  margin: 14px 0;
  padding: 14px 18px 14px 16px;
  border-radius: 16px;
  border-left: 5px solid var(--violet);
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.1), rgba(237, 91, 145, 0.06));
  color: #4130a0;
}

.tip-card::before {
  margin-right: 6px;
  content: "💡";
}

.tip-card p:last-child {
  margin-bottom: 0;
}

/* 荧光高亮 + 波浪线重点 */
.highlight,
.output-box mark {
  padding: 1px 4px;
  border-radius: 5px;
  background: linear-gradient(180deg, transparent 55%, rgba(255, 209, 102, 0.85) 55%);
  color: inherit;
  font-weight: 700;
}

.key,
.wavy {
  color: #e5484d;
  font-weight: 800;
  text-decoration: underline wavy #ffb020;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.answer-card em,
.output-box em {
  color: #d6336c;
  font-style: normal;
  font-weight: 700;
  text-decoration: underline wavy rgba(214, 51, 108, 0.55);
  text-underline-offset: 3px;
}

/* 徽章 / 标签胶囊，带语义配色 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
}

.badge--pink { background: #fce3ee; color: #c02777; }
.badge--purple { background: #ece6ff; color: #5b3fd6; }
.badge--green { background: #dcf5e7; color: #1a8a52; }
.badge--blue { background: #dcedfb; color: #1471c4; }
.badge--orange { background: #ffe9d2; color: #c8631a; }
.badge--teal { background: #d3f3ee; color: #0e8f79; }
.badge--red { background: #ffe0e0; color: #d23f3f; }
.badge--gray { background: #eceef3; color: #5a6072; }

/* 步骤列表 */
.step-list,
.solution-flow {
  display: grid;
  gap: 10px;
  margin: 14px 0;
}

.step-list {
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.solution-flow {
  padding: 16px 18px;
  border-radius: 16px;
  border-left: 5px solid var(--clay);
  background: linear-gradient(135deg, #fff1e6, #fffaf4);
}

.solution-flow p {
  margin: 0 0 8px;
}

.solution-flow p:last-child {
  margin-bottom: 0;
}

.step-list li {
  position: relative;
  padding: 11px 14px 11px 46px;
  border: 1px solid rgba(124, 92, 255, 0.12);
  border-radius: 14px;
  background: #fbfaff;
  color: #38404f;
}

.step-list li::before {
  position: absolute;
  top: 10px;
  left: 12px;
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--violet), var(--pink));
  color: #fff;
  content: counter(step);
  counter-increment: step;
  font-size: 12px;
  font-weight: 800;
}

/* 流程图：横向连线的节点 */
.flow-chart {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 14px 0;
  padding: 16px;
  border-radius: 16px;
  background: linear-gradient(135deg, #eef4ff, #f7f2ff);
}

.flow-node {
  padding: 9px 14px;
  border-radius: 12px;
  background: #fff;
  border: 1.5px solid rgba(124, 92, 255, 0.28);
  color: #3a3170;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 4px 12px rgba(90, 70, 190, 0.08);
}

.flow-node--start { border-color: var(--teal); color: #0e8f79; }
.flow-node--end { border-color: var(--clay); background: linear-gradient(135deg, #fff3ec, #fff); color: #c8451a; }

.flow-arrow,
.flow-chart > .flow-node + .flow-node::before {
  color: #9a8fd6;
  font-weight: 900;
}

.flow-arrow::before {
  content: "→";
}

/* 思维导图：中心 + 分支 */
.mind-map {
  display: grid;
  gap: 10px;
  margin: 14px 0;
  padding: 16px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.08), rgba(237, 91, 145, 0.06));
}

.mind-map .mind-root {
  justify-self: start;
  padding: 8px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--violet), var(--pink));
  color: #fff;
  font-weight: 800;
}

.mind-branch {
  position: relative;
  padding: 10px 14px 10px 28px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid rgba(124, 92, 255, 0.16);
  color: #3a3550;
}

.mind-branch::before {
  position: absolute;
  left: 11px;
  content: "🔸";
  font-size: 12px;
}

.mind-branch:nth-child(4n + 1) { border-left: 4px solid var(--pink); }
.mind-branch:nth-child(4n + 2) { border-left: 4px solid var(--violet); }
.mind-branch:nth-child(4n + 3) { border-left: 4px solid var(--sky); }
.mind-branch:nth-child(4n) { border-left: 4px solid var(--teal); }

.formula-box,
.diagram-box,
.final-answer {
  margin: 14px 0;
  padding: 16px;
  border-radius: 16px;
}

.formula-box {
  border-left: 5px solid var(--sky);
  background: linear-gradient(135deg, #e7f2fd, #f2f7ff);
  color: #145ea8;
  font-weight: 700;
  font-family: "Cambria Math", "Latin Modern Math", "PingFang SC", serif;
  font-size: 15px;
}

.formula-box::before {
  margin-right: 6px;
  content: "🧮";
}

.diagram-box {
  border: 2px solid rgba(22, 135, 224, 0.28);
  background: linear-gradient(135deg, #ffffff, #f2f8ff);
  box-shadow: 0 12px 30px rgba(22, 135, 224, 0.1);
}

.diagram-box pre {
  margin: 0;
  white-space: pre-wrap;
  font-family: "Maple Mono", "Cascadia Code", Consolas, monospace;
  line-height: 1.5;
}

.geometry-canvas {
  overflow-x: auto;
}

.geometry-canvas svg {
  display: block;
  width: min(100%, 760px);
  height: auto;
  min-height: 260px;
  margin: 0 auto;
  border-radius: 18px;
  background:
    linear-gradient(rgba(22, 135, 224, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 135, 224, 0.06) 1px, transparent 1px),
    #ffffff;
  background-size: 24px 24px;
  box-shadow: inset 0 0 0 2px rgba(116, 73, 245, 0.12);
}

.geometry-canvas text {
  font-family: "Microsoft YaHei", sans-serif;
}

.final-answer {
  display: flex;
  gap: 8px;
  align-items: baseline;
  border-left: 5px solid var(--teal);
  background: linear-gradient(135deg, #d8f5ea, #eafff6);
  color: #0a7a53;
  font-size: 17px;
  font-weight: 800;
}

.final-answer::before {
  content: "✅";
  font-size: 18px;
}

/* 全部题目之后的知识点总结容器 */
.knowledge-summary {
  margin: 26px 0 0;
  padding: 22px 24px;
  border: 1px solid rgba(124, 92, 255, 0.2);
  border-radius: 20px;
  background:
    radial-gradient(circle at 100% 0%, rgba(237, 91, 145, 0.1), transparent 42%),
    linear-gradient(135deg, #f3efff, #fbf5ff);
  box-shadow: 0 12px 32px rgba(90, 70, 190, 0.1);
}

.knowledge-summary > h3 {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 0 0 14px;
  color: #4a2fb0;
  font-size: 18px;
  font-weight: 800;
}


.knowledge-item {
  margin: 12px 0;
  padding: 14px 16px;
  border-left: 4px solid var(--violet);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.78);
}

.knowledge-item + .knowledge-item {
  margin-top: 12px;
}

.knowledge-item h4 {
  margin: 0 0 8px;
  padding: 0;
  border: 0;
  color: #3a2c8c;
  font-size: 15px;
  font-weight: 800;
}

.knowledge-item p {
  margin: 0 0 8px;
  color: #38404f;
}

.knowledge-item p:last-child {
  margin-bottom: 0;
}

.warn-card {
  margin: 14px 0;
  padding: 16px 18px 16px 16px;
  border: 1px solid rgba(226, 72, 77, 0.24);
  border-left: 5px solid #e5484d;
  border-radius: 16px;
  background: linear-gradient(135deg, #fff0ef, #fff7f5);
  color: #b23238;
}

.warn-card::before {
  margin-right: 6px;
  content: "⚠️";
}

.source-image-panel {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
  padding: 22px;
  border: 2px solid rgba(255, 159, 0, 0.34);
  border-left: 8px solid var(--saffron);
  border-radius: 26px;
  background: linear-gradient(135deg, rgba(255, 245, 187, 0.96), rgba(255, 250, 222, 0.92));
  box-shadow: 0 16px 36px rgba(255, 159, 0, 0.15);
}

.source-label {
  display: inline-flex;
  margin-bottom: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--saffron);
  color: white;
  font-weight: 900;
}

.source-image-panel strong {
  display: block;
  color: #9a5700;
  font-size: 24px;
}

.source-warning {
  margin: 8px 0 0;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 90, 31, 0.12);
  color: #b53b12;
  font-weight: 900;
}

.source-image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 12px;
}

.source-image-grid figure {
  margin: 0;
  padding: 12px;
  border: 2px solid rgba(116, 73, 245, 0.14);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
}

.source-image-grid img {
  display: block;
  max-width: 100%;
  max-height: 680px;
  margin: 0 auto;
  border-radius: 12px;
  object-fit: contain;
}

.source-image-grid figcaption {
  margin-top: 8px;
  color: #9a5700;
  font-size: 13px;
  text-align: center;
}

.svg-missing {
  border-left: 8px solid var(--clay);
}

.warn-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 800;
}

.warn-card small {
  color: #c06a52;
}

/* 表格：彩色表头 + 斑马纹 + 圆角 */
.output-box table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 14px 0;
  overflow: hidden;
  border: 1px solid rgba(124, 92, 255, 0.16);
  border-radius: 14px;
  font-size: 14px;
}

.output-box th,
.output-box td {
  padding: 10px 13px;
  border-bottom: 1px solid rgba(124, 92, 255, 0.1);
  text-align: left;
}

.output-box th {
  background: linear-gradient(135deg, var(--violet), var(--pink));
  color: #fff;
  font-weight: 700;
}

.output-box tbody tr:nth-child(even) td {
  background: #faf9ff;
}

.output-box tbody tr:last-child td {
  border-bottom: 0;
}

.output-box td:not(:last-child),
.output-box th:not(:last-child) {
  border-right: 1px solid rgba(124, 92, 255, 0.08);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes progress-flow {
  to {
    background-position: 300% 0;
  }
}

@keyframes progress-stripes {
  to {
    background-position: 42px 0;
  }
}

@keyframes progress-glow {
  50% {
    box-shadow: 0 0 16px 5px rgba(255, 255, 255, 0.95);
  }
}

.config-dialog {
  width: min(780px, calc(100% - 24px));
  border: 0;
  border-radius: 34px;
  padding: 0;
  background: transparent;
}

.config-dialog::backdrop {
  background: rgba(18, 24, 20, 0.58);
  backdrop-filter: blur(10px);
}

.config-card {
  max-height: 90vh;
  padding: clamp(20px, 3vw, 30px);
  overflow-y: auto;
  border-radius: 34px;
  background: var(--paper-solid);
}

/* ============ 执行日志：黑底终端风 ============ */
#logDialog {
  width: min(820px, calc(100% - 24px));
}

#logDialog .config-card {
  padding: 0;
  border: 1px solid #2b3245;
  border-radius: 16px;
  background: #0d1017;
  overflow: hidden;
}

#logDialog .dialog-head {
  margin: 0;
  padding: 12px 16px;
  border-bottom: 1px solid #232a3a;
  background: linear-gradient(180deg, #1a1f2b, #12161f);
}

#logDialog .section-kicker {
  color: #6b7488;
}

#logDialog .dialog-head h2 {
  color: #e6e9f0;
  font-size: 16px;
}

#logDialog .icon-btn {
  background: rgba(255, 255, 255, 0.08);
  color: #cdd3e0;
}

.log-list {
  max-height: min(62vh, 560px);
  padding: 14px 16px 18px;
  overflow-y: auto;
  font-family: "Cascadia Code", "Maple Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.65;
  color: #c8d0e0;
  background:
    radial-gradient(circle at 0% -10%, rgba(124, 92, 255, 0.1), transparent 40%),
    #0d1017;
  scrollbar-width: thin;
  scrollbar-color: #38405a #0d1017;
}

.log-list::-webkit-scrollbar {
  width: 10px;
}

.log-list::-webkit-scrollbar-thumb {
  border: 3px solid #0d1017;
  border-radius: 999px;
  background: #38405a;
}

.log-empty {
  margin: 0;
  padding: 16px 4px;
  color: #6b7488;
}

.log-line {
  display: flex;
  gap: 10px;
  padding: 2px 0;
  white-space: pre-wrap;
  word-break: break-word;
  animation: log-in 0.18s ease both;
}

.log-line::before {
  color: #4b5570;
  content: "›";
}

.log-time {
  flex-shrink: 0;
  color: #5b6480;
}

.log-text {
  flex: 1;
}

.log-info .log-text { color: #c8d0e0; }
.log-ok .log-text { color: #4ade80; }
.log-ok::before { color: #4ade80; content: "✓"; }
.log-warn .log-text { color: #fbbf24; }
.log-warn::before { color: #fbbf24; content: "!"; }
.log-error .log-text { color: #f87171; }
.log-error::before { color: #f87171; content: "✗"; }

@keyframes log-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dialog-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 22px;
}

.icon-btn {
  width: 42px;
  height: 42px;
  background: rgba(23, 32, 24, 0.08);
  color: var(--ink);
  font-size: 28px;
  line-height: 1;
}

.grid-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.grid-form label {
  display: grid;
  gap: 8px;
  color: var(--ink-soft);
  font-weight: 900;
}

.grid-form input:not([type="checkbox"]),
.grid-form select {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  outline: none;
  background: white;
  color: var(--ink);
  font-weight: 700;
}

.proxy-toggle {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: row;
  gap: 9px;
  align-items: flex-start;
  font-weight: 700;
}

.proxy-toggle input {
  margin-top: 3px;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--violet);
}

.proxy-toggle span {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
}

.grid-form select {
  cursor: pointer;
}

.grid-form input:focus,
.grid-form select:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.14);
}

#userAgentCustomWrap {
  grid-column: 1 / -1;
}

.config-actions {
  margin-top: 16px;
}

/* 测试连通结果区 */
.test-result {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.6;
}

.test-result.test-info {
  border-color: rgba(124, 92, 255, 0.28);
  background: rgba(124, 92, 255, 0.08);
  color: var(--violet);
}

.test-result.test-warn {
  border-color: rgba(200, 99, 26, 0.3);
  background: #fff3e8;
  color: #c8631a;
}

.test-summary {
  margin-bottom: 8px;
  font-weight: 800;
  color: var(--ink);
}

.test-line {
  padding: 5px 0;
  word-break: break-word;
}

.test-line + .test-line {
  border-top: 1px dashed var(--line);
}

.test-ok { color: #1a8a52; }
.test-fail { color: #d23f3f; }

.model-box {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.62);
}

.model-box-head {
  display: flex;
  gap: 12px;
  align-items: baseline;
  justify-content: space-between;
  color: var(--ink-soft);
}

.model-box-head span {
  color: var(--muted);
  font-size: 14px;
}

.model-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 10px;
  max-height: 260px;
  margin-top: 12px;
  overflow: auto;
  color: var(--muted);
}

.model-option {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--ink-soft);
  font-size: 14px;
}

.fallback-label {
  display: grid;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-weight: 900;
}

.fallback-label select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  outline: none;
  background: white;
  color: var(--ink);
  font-weight: 700;
}

.config-note {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.reveal {
  animation: reveal-up 0.7s ease both;
}

.work-input.reveal {
  animation-delay: 0.06s;
}

.work-output.reveal {
  animation-delay: 0.14s;
}

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .workbench {
    grid-template-columns: 1fr;
    height: auto;
  }

  .panel {
    min-height: 60vh;
  }

  .work-scroll {
    overflow-y: visible;
  }

  .work-output .output-box {
    min-height: 60vh;
  }
}

@media (max-width: 700px) {
  .topbar {
    flex-wrap: wrap;
    gap: 10px;
  }

  .topbar-status {
    order: 3;
    width: 100%;
    margin-left: 0;
  }

  .panel,
  .config-card {
    border-radius: 26px;
  }

  .model-box-head {
    align-items: stretch;
    flex-direction: column;
  }

  .upload-card {
    grid-template-columns: 1fr;
  }

  .upload-icon {
    width: 42px;
    height: 42px;
  }

  .grid-form {
    grid-template-columns: 1fr;
  }
}

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