.tracking-mini {
  position: relative;
  display: block;
  background: #f6f2ff;
}

.tracking-mini i {
  position: absolute;
  width: 23px;
  height: 23px;
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 4px 10px rgba(37, 29, 45, 0.14);
}

.tracking-mini i:nth-child(1) {
  top: 22px;
  left: 24px;
  background: #7c3aed;
}

.tracking-mini i:nth-child(2) {
  top: 28px;
  right: 32px;
  width: 31px;
  height: 31px;
  background: #f05252;
}

.tracking-mini i:nth-child(3) {
  top: 72px;
  left: 46%;
  background: #1689d8;
}

.tracking-mini i:nth-child(4) {
  bottom: 20px;
  left: 35px;
  width: 28px;
  height: 28px;
  background: #159a68;
}

.tracking-mini i:nth-child(5) {
  right: 26px;
  bottom: 19px;
  background: #ffd400;
}

.tracking-mini i:nth-child(6) {
  top: 51px;
  left: 22px;
  width: 15px;
  height: 15px;
  background: #d8d4de;
}

.tracking-mini i:nth-child(7) {
  right: 24px;
  bottom: 59px;
  width: 17px;
  height: 17px;
  background: #d8d4de;
}

.tracking-mini b {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 2px solid var(--yellow);
  border-radius: 50%;
  color: var(--teal-dark);
  background: #fff;
  font-size: 24px;
  transform: translate(-50%, -50%);
}

.tracking-shell {
  width: min(100%, 720px);
}

.tracking-entry-shell {
  width: min(100%, 620px);
}

.tracking-cover-topbar {
  flex: 0 0 auto;
}

.tracking-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  align-items: center;
  gap: 24px;
  padding: 18px 0 10px;
}

.tracking-hero .brand-mark {
  margin-bottom: 14px;
}

.tracking-title {
  margin: 10px 0 15px;
  color: var(--teal-dark);
  font-size: 47px;
  font-weight: 900;
}

.tracking-title span {
  color: #b88200;
}

.tracking-hero .lead {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.72;
}

.tracking-orbit-preview {
  position: relative;
  width: 190px;
  aspect-ratio: 1;
  overflow: hidden;
  border: 2px solid rgba(255, 212, 0, 0.78);
  border-radius: 50%;
  background: #faf8ff;
  box-shadow: 0 12px 28px rgba(109, 40, 217, 0.14);
}

.tracking-orbit-preview::before,
.tracking-orbit-preview::after {
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(109, 40, 217, 0.18);
  border-radius: 50%;
  content: "";
}

.tracking-orbit-preview::after {
  inset: 49px;
  border-color: rgba(214, 168, 0, 0.36);
}

.tracking-orbit-preview i {
  position: absolute;
  z-index: 2;
  width: 25px;
  height: 25px;
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 4px 11px rgba(37, 29, 45, 0.16);
  animation: tracking-preview-float 2.7s ease-in-out infinite alternate;
}

.tracking-orbit-preview i:nth-child(1) {
  top: 22px;
  left: 76px;
  background: #7c3aed;
}

.tracking-orbit-preview i:nth-child(2) {
  top: 58px;
  right: 18px;
  width: 33px;
  height: 33px;
  background: #f05252;
  animation-delay: -0.8s;
}

.tracking-orbit-preview i:nth-child(3) {
  right: 42px;
  bottom: 24px;
  background: #1689d8;
  animation-delay: -1.5s;
}

.tracking-orbit-preview i:nth-child(4) {
  bottom: 20px;
  left: 51px;
  width: 29px;
  height: 29px;
  background: #159a68;
  animation-delay: -0.4s;
}

.tracking-orbit-preview i:nth-child(5) {
  top: 72px;
  left: 18px;
  background: #ffd400;
  animation-delay: -1.2s;
}

.tracking-orbit-preview i:nth-child(6) {
  top: 78px;
  left: 82px;
  width: 18px;
  height: 18px;
  background: #d8d4de;
}

.tracking-orbit-preview strong {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  color: rgba(109, 40, 217, 0.3);
  font-size: 43px;
  transform: translate(-50%, -50%);
}

@keyframes tracking-preview-float {
  from {
    transform: translate3d(-3px, 3px, 0);
  }
  to {
    transform: translate3d(5px, -5px, 0);
  }
}

.tracking-guide-shell {
  width: min(100%, 660px);
}

.tracking-guide-modes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 26px 0;
}

.tracking-guide-modes section {
  padding: 19px;
  border-top: 4px solid var(--yellow);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.tracking-guide-modes section:last-child {
  border-top-color: #7c3aed;
}

.tracking-guide-modes section:nth-child(2) {
  border-top-color: var(--teal);
}

.tracking-guide-modes span,
.tracking-guide-modes strong {
  display: block;
}

.tracking-guide-modes span {
  color: var(--coral);
  font-size: 10px;
  font-weight: 850;
}

.tracking-guide-modes h2 {
  margin: 7px 0 9px;
  color: var(--teal-dark);
  font-size: 20px;
}

.tracking-guide-modes p {
  min-height: 96px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.tracking-guide-modes strong {
  color: var(--ink);
  font-size: 11px;
}

.tracking-lobby {
  gap: 19px;
}

.tracking-participant .participant-order {
  border-color: var(--participant-color);
  color: var(--participant-color);
  background: #fff;
}

.tracking-setup {
  gap: 23px;
}

.tracking-mode-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.tracking-mode-tabs button {
  min-width: 0;
  min-height: 78px;
  display: grid;
  align-content: center;
  gap: 5px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  background: #fff;
  text-align: left;
}

.tracking-mode-tabs button.selected {
  border: 2px solid var(--teal);
  background: var(--purple-soft);
}

.tracking-mode-tabs strong,
.tracking-mode-tabs span {
  display: block;
}

.tracking-mode-tabs strong {
  font-size: 14px;
}

.tracking-mode-tabs span {
  color: var(--muted);
  font-size: 10px;
}

.tracking-levels {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.tracking-levels button {
  min-width: 0;
  min-height: 58px;
  display: grid;
  place-items: center;
  gap: 1px;
  padding: 7px 3px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
}

.tracking-levels button.selected {
  border: 2px solid var(--yellow);
  color: var(--teal-dark);
  background: var(--gold-soft);
}

.tracking-levels span,
.tracking-levels small {
  display: block;
}

.tracking-levels span {
  font-size: 19px;
  font-weight: 900;
}

.tracking-levels small {
  max-width: 100%;
  overflow: hidden;
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tracking-difficulty-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-top: 9px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 750;
}

.tracking-difficulty-summary span {
  position: relative;
}

.tracking-difficulty-summary span:not(:last-child)::after {
  position: absolute;
  right: -7px;
  color: var(--yellow);
  content: "·";
}

.tracking-select-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.tracking-select-row label {
  min-width: 0;
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
}

.tracking-select-row select {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
  font-weight: 750;
}

.tracking-speed-group {
  margin-top: 18px;
}

.tracking-speed-options {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tracking-swap-speed-options {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tracking-direction-note {
  padding: 13px 15px;
  border-left: 4px solid var(--yellow);
  color: var(--muted);
  background: var(--gold-soft);
  font-size: 11px;
  line-height: 1.55;
}

.tracking-guest-config {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.tracking-guest-config span {
  color: var(--muted);
  font-size: 11px;
}

.tracking-guest-config strong {
  color: var(--teal-dark);
  font-size: 13px;
  text-align: right;
}

.tracking-color-roster {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tracking-shape-summary {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 13px;
  border: 1px solid #ded5ee;
  border-left: 4px solid #ffd400;
  border-radius: 6px;
  background: #faf8ff;
}

.tracking-shape-summary span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 750;
}

.tracking-shape-summary strong {
  min-width: 0;
  color: var(--teal-dark);
  font-size: 12px;
  text-align: right;
}

.tracking-color-roster span,
.tracking-selection-status span,
.tracking-answer-progress span,
.tracking-legend span {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tracking-color-roster span {
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  background: #fff;
  font-size: 10px;
  font-weight: 750;
}

.tracking-color-roster i,
.tracking-selection-status i,
.tracking-answer-progress i,
.tracking-legend i,
.tracking-ranking i,
.tracking-collaboration i {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 50%;
}

.tracking-lobby-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.tracking-game-shell {
  width: min(100%, 760px);
  padding-bottom: max(32px, env(safe-area-inset-bottom));
}

.tracking-game-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 14px 0 10px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.tracking-game-metrics > div {
  min-width: 0;
  display: grid;
  justify-items: center;
  gap: 3px;
  padding: 10px 5px;
}

.tracking-game-metrics > div:not(:last-child) {
  border-right: 1px solid var(--line);
}

.tracking-game-metrics span {
  color: var(--muted);
  font-size: 9px;
}

.tracking-game-metrics strong {
  max-width: 100%;
  color: var(--teal-dark);
  font-size: 14px;
  text-align: center;
}

.tracking-own-target {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.tracking-own-target i {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.tracking-phase-banner {
  min-height: 65px;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 4px;
  margin: 0 0 10px;
  padding: 10px 14px;
  border-left: 5px solid var(--yellow);
  background: var(--gold-soft);
  text-align: center;
}

.tracking-phase-banner.tracking,
.tracking-phase-banner.selection {
  border-left-color: var(--teal);
  background: var(--purple-soft);
}

.tracking-phase-banner.answer {
  border-left-color: #159a68;
  background: #ebfaf3;
}

.tracking-phase-banner span,
.tracking-phase-banner strong {
  display: block;
}

.tracking-phase-banner span {
  color: var(--muted);
  font-size: 9px;
  font-weight: 800;
}

.tracking-phase-banner strong {
  color: var(--ink);
  font-size: 14px;
}

.tracking-field {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 2px solid #ded5ee;
  border-radius: 8px;
  background: #fff;
  box-shadow:
    inset 0 0 0 7px #faf8ff,
    0 10px 26px rgba(109, 40, 217, 0.08);
  isolation: isolate;
}

.tracking-field::before {
  position: absolute;
  inset: 13px;
  border: 1px dashed rgba(109, 40, 217, 0.12);
  border-radius: 5px;
  content: "";
  pointer-events: none;
}

.tracking-ball {
  position: absolute;
  z-index: 2;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  transform: translate(-50%, -50%);
}

button.tracking-ball {
  touch-action: manipulation;
}

.tracking-ball-core {
  width: var(--ball-visible-size);
  height: var(--ball-visible-size);
  display: grid;
  place-items: center;
  border: 3px solid rgba(255, 255, 255, 0.96);
  border-radius: 50%;
  color: #fff;
  background: var(--ball-color);
  box-shadow:
    0 4px 9px rgba(37, 29, 45, 0.19),
    inset 0 0 0 1px rgba(37, 29, 45, 0.08);
  font-size: 12px;
  font-weight: 900;
  transition:
    width 180ms cubic-bezier(0.2, 1.45, 0.4, 1),
    height 180ms cubic-bezier(0.2, 1.45, 0.4, 1),
    background 70ms ease,
    box-shadow 160ms ease;
}

.tracking-ball.interactive:active .tracking-ball-core {
  transform: scale(0.86);
}

.solo-coach-mode .tracking-ball.interactive:active .tracking-ball-core {
  transform: none;
}

.tracking-ball.selected-target .tracking-ball-core,
.tracking-ball.my-target .tracking-ball-core {
  color: #3c3100;
  border-color: #fff;
  background: var(--yellow);
  box-shadow:
    0 0 0 4px rgba(255, 212, 0, 0.28),
    0 5px 12px rgba(109, 40, 217, 0.18);
}

.tracking-ball.my-target .tracking-ball-core {
  box-shadow:
    0 0 0 5px rgba(109, 40, 217, 0.34),
    0 5px 12px rgba(109, 40, 217, 0.2);
}

.tracking-ball.answer-selected .tracking-ball-core {
  color: #3c3100;
  border-color: #fff;
  background: var(--yellow);
  box-shadow:
    0 0 0 5px rgba(109, 40, 217, 0.34),
    0 5px 12px rgba(109, 40, 217, 0.2);
}

.tracking-ball.answer-correct .tracking-ball-core {
  color: #fff;
  border-color: #fff;
  background: #159a68;
  box-shadow:
    0 0 0 5px rgba(21, 154, 104, 0.25),
    0 5px 12px rgba(21, 154, 104, 0.2);
}

/* 小星陪练定向追踪：选球/作答顺序角标 */
.tracking-order-badge {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 3;
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border: 1.5px solid #fff;
  border-radius: 50%;
  background: #6d28d9;
  box-shadow: 0 2px 5px rgba(109, 40, 217, 0.35);
  color: #fff;
  font-size: 11px;
  font-style: normal;
  font-weight: 900;
  line-height: 1;
  pointer-events: none;
}

/* 答错公布时：该位号对应关系点错，角标变红 */
.tracking-order-badge.mismatch {
  background: #dc2626;
  box-shadow: 0 2px 5px rgba(220, 38, 38, 0.4);
}

.tracking-shape-field {
  position: relative;
  width: min(100%, 650px);
  aspect-ratio: 5 / 4;
  margin: 0 auto;
  overflow: hidden;
  border: 2px solid #ded5ee;
  border-radius: 8px;
  background:
    linear-gradient(rgba(124, 58, 237, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.035) 1px, transparent 1px),
    #fff;
  background-size: 28px 28px;
  box-shadow:
    inset 0 0 0 7px #faf8ff,
    0 10px 26px rgba(109, 40, 217, 0.08);
  isolation: isolate;
}

.tracking-shape-outline {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.tracking-shape-outline polygon {
  fill: rgba(124, 58, 237, 0.035);
  stroke: rgba(98, 53, 138, 0.34);
  stroke-dasharray: 2.2 2;
  stroke-linejoin: round;
  stroke-width: 1.25;
  vector-effect: non-scaling-stroke;
}

/* 立体图形线框：可见棱实线，被遮挡棱虚线弱化 */
.tracking-shape-outline .tracking-shape-edge {
  fill: none;
  stroke: rgba(98, 53, 138, 0.55);
  stroke-linecap: round;
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
}

.tracking-shape-outline .tracking-shape-edge.is-hidden {
  stroke: rgba(98, 53, 138, 0.22);
  stroke-dasharray: 2 2.4;
  stroke-width: 1.1;
}

.tracking-shape-ball {
  position: absolute;
  z-index: 2;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  transform: translate(-50%, -50%);
  touch-action: manipulation;
  will-change: left, top;
}

.tracking-shape-ball > span {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 3px solid #fff;
  border-radius: 50%;
  color: #fff;
  background: #7c3aed;
  box-shadow:
    0 5px 12px rgba(57, 35, 76, 0.22),
    inset 0 0 0 1px rgba(37, 29, 45, 0.08);
  font-size: 14px;
  font-weight: 900;
  transition:
    width 180ms cubic-bezier(0.2, 1.45, 0.4, 1),
    height 180ms cubic-bezier(0.2, 1.45, 0.4, 1),
    background 160ms ease,
    box-shadow 180ms ease,
    transform 120ms ease;
}

.tracking-shape-ball.target-visible > span {
  width: 44px;
  height: 44px;
  color: #3c3100;
  background: #ffd400;
  box-shadow:
    0 0 0 6px rgba(255, 212, 0, 0.22),
    0 7px 16px rgba(98, 53, 138, 0.24);
  animation: tracking-target-pulse 900ms ease-in-out infinite alternate;
}

.tracking-shape-ball.numbered > span {
  width: 44px;
  height: 44px;
  font-size: 16px;
}

button.tracking-shape-ball.numbered:hover > span,
button.tracking-shape-ball.numbered:focus-visible > span {
  color: #3c3100;
  background: #ffd400;
  box-shadow:
    0 0 0 5px rgba(255, 212, 0, 0.24),
    0 6px 14px rgba(98, 53, 138, 0.22);
}

button.tracking-shape-ball.numbered:active > span {
  transform: scale(0.84);
}

.solo-coach-mode button.tracking-shape-ball.numbered:active > span {
  transform: none;
}

.tracking-shape-ball.answer-correct > span {
  color: #fff;
  background: #159a68;
  box-shadow:
    0 0 0 6px rgba(21, 154, 104, 0.22),
    0 6px 14px rgba(21, 154, 104, 0.2);
}

.tracking-shape-answer-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.55;
  text-align: center;
}

@keyframes tracking-target-pulse {
  from {
    transform: scale(0.94);
  }
  to {
    transform: scale(1.06);
  }
}

.tracking-pause-mask {
  position: absolute;
  z-index: 10;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 8px;
  color: var(--teal-dark);
  background: rgba(255, 255, 255, 0.88);
}

.tracking-pause-mask span {
  font-size: 34px;
  font-weight: 900;
}

.tracking-selection-status,
.tracking-answer-progress,
.tracking-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tracking-selection-status,
.tracking-answer-progress {
  margin-bottom: 9px;
}

.tracking-answer-deadline {
  margin: -2px 0 10px;
  text-align: center;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.tracking-answer-deadline:not(:empty) {
  padding-bottom: 2px;
}

.tracking-selection-status span,
.tracking-answer-progress span,
.tracking-legend span {
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--muted);
  background: #fff;
  font-size: 9px;
  font-weight: 750;
}

.tracking-selection-status span.ready,
.tracking-answer-progress span.correct {
  border-color: #a7e2c7;
  color: #0f704b;
  background: #effbf5;
}

.tracking-answer-progress span.incorrect {
  border-color: #f3b8b8;
  color: #a52d35;
  background: #fff2f2;
}

.tracking-start-button,
.tracking-submit-answer {
  margin-top: 11px;
}

.tracking-legend {
  justify-content: center;
  margin-top: 9px;
}

.tracking-legend span.mine {
  border-color: var(--yellow);
  color: var(--ink);
  background: var(--gold-soft);
}

.tracking-focus-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
  text-align: center;
}

.tracking-answer-shell {
  gap: 0;
}

.tracking-answer-focus {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  margin: 18px 0;
}

.tracking-answer-swatch {
  width: 48px;
  height: 48px;
  border: 4px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--line);
}

.tracking-answer-focus div {
  display: grid;
  gap: 2px;
}

.tracking-answer-focus div span {
  color: var(--muted);
  font-size: 10px;
}

.tracking-answer-focus div strong {
  color: var(--ink);
  font-size: 23px;
}

.tracking-number-pad {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.tracking-number-pad button {
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--teal-dark);
  background: #fff;
  font-size: 23px;
  font-weight: 900;
  box-shadow: 0 4px 10px rgba(37, 29, 45, 0.06);
}

.tracking-number-pad button:active {
  border-color: var(--yellow);
  background: var(--gold-soft);
  transform: scale(0.94);
}

.solo-coach-mode .tracking-number-pad button:active {
  transform: none;
}

.tracking-waiting-answer {
  min-height: 130px;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 6px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.tracking-waiting-answer strong {
  color: #0f704b;
  font-size: 21px;
}

.tracking-waiting-answer.incorrect strong {
  color: var(--coral);
}

.tracking-waiting-answer span {
  color: var(--muted);
  font-size: 11px;
}

.tracking-direction-answer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 12px 0 8px;
}

.tracking-direction-answer-head div {
  display: grid;
  flex: 0 0 auto;
  gap: 1px;
}

.tracking-direction-answer-head span {
  color: var(--muted);
  font-size: 9px;
}

.tracking-direction-answer-head strong {
  color: var(--teal-dark);
  font-size: 20px;
}

.tracking-direction-answer-head p {
  margin-bottom: 0;
  color: var(--ink);
  font-size: 11px;
  font-weight: 750;
  text-align: right;
}

.tracking-field.answer-directional .tracking-ball-core {
  width: 38px;
  height: 38px;
  font-size: 13px;
}

.tracking-team-mark {
  min-height: 142px;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 9px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--gold-soft);
}

.tracking-team-mark span {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #159a68;
  font-size: 29px;
  font-weight: 900;
}

.tracking-team-mark strong {
  color: var(--teal-dark);
  font-size: 13px;
}

.tracking-team-mark.incorrect {
  background: #fff2f2;
}

.tracking-team-mark.incorrect span {
  background: var(--coral);
}

.tracking-own-answer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

/* 小星陪练定向追踪：答错时逐位指出对应关系错误 */
.tracking-mistake-note {
  margin: 0;
  padding: 10px 14px;
  border: 1px solid rgba(220, 38, 38, 0.25);
  border-radius: 8px;
  background: rgba(220, 38, 38, 0.06);
  color: #b91c1c;
  font-size: 12px;
  line-height: 1.7;
}

.tracking-own-answer span {
  color: var(--muted);
  font-size: 11px;
}

.tracking-own-answer strong {
  color: var(--teal-dark);
  font-size: 20px;
  text-align: right;
}

.tracking-ranking {
  display: grid;
}

.tracking-ranking > div {
  min-width: 0;
  display: grid;
  grid-template-columns: 28px 12px minmax(68px, 0.7fr) minmax(0, 1.3fr);
  align-items: center;
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.tracking-ranking .rank-number {
  color: var(--coral);
  font-size: 18px;
  font-weight: 900;
}

.tracking-ranking strong {
  font-size: 12px;
}

.tracking-ranking > div > span:last-child {
  min-width: 0;
  color: var(--muted);
  font-size: 10px;
  text-align: right;
}

.tracking-collaboration {
  display: grid;
}

.tracking-collaboration > div {
  min-width: 0;
  display: grid;
  grid-template-columns: 12px minmax(68px, 0.8fr) minmax(0, 1.2fr);
  align-items: center;
  gap: 9px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.tracking-collaboration strong {
  font-size: 12px;
}

.tracking-collaboration > div > span {
  min-width: 0;
  color: var(--muted);
  font-size: 10px;
  text-align: right;
}

@media (max-width: 620px) {
  .tracking-hero {
    grid-template-columns: minmax(0, 1fr) 142px;
    gap: 15px;
  }

  .tracking-mode-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tracking-orbit-preview {
    width: 142px;
  }

  .tracking-orbit-preview i:nth-child(1) {
    top: 14px;
    left: 56px;
  }

  .tracking-orbit-preview i:nth-child(2) {
    top: 39px;
    right: 11px;
  }

  .tracking-orbit-preview i:nth-child(3) {
    right: 28px;
    bottom: 15px;
  }

  .tracking-orbit-preview i:nth-child(4) {
    bottom: 12px;
    left: 34px;
  }

  .tracking-orbit-preview i:nth-child(5) {
    top: 52px;
    left: 9px;
  }

  .tracking-orbit-preview i:nth-child(6) {
    top: 58px;
    left: 61px;
  }

  .tracking-guide-modes {
    grid-template-columns: 1fr;
  }

  .tracking-guide-modes p {
    min-height: 0;
  }

  .tracking-field {
    aspect-ratio: 4 / 5;
  }

  .tracking-field.answer-directional {
    aspect-ratio: 1;
  }

  .tracking-shape-field {
    aspect-ratio: 1;
  }
}

@media (max-width: 480px) {
  .tracking-hero {
    grid-template-columns: minmax(0, 1fr) 116px;
  }

  .tracking-title {
    font-size: 38px;
  }

  .tracking-orbit-preview {
    width: 116px;
  }

  .tracking-orbit-preview i {
    width: 20px;
    height: 20px;
  }

  .tracking-orbit-preview i:nth-child(1) {
    top: 10px;
    left: 45px;
  }

  .tracking-orbit-preview i:nth-child(2) {
    top: 31px;
    right: 8px;
    width: 27px;
    height: 27px;
  }

  .tracking-orbit-preview i:nth-child(3) {
    right: 22px;
    bottom: 10px;
  }

  .tracking-orbit-preview i:nth-child(4) {
    bottom: 8px;
    left: 28px;
    width: 24px;
    height: 24px;
  }

  .tracking-orbit-preview i:nth-child(5) {
    top: 42px;
    left: 5px;
  }

  .tracking-orbit-preview i:nth-child(6) {
    top: 47px;
    left: 48px;
  }

  .tracking-mode-tabs {
    grid-template-columns: 1fr;
  }

  .tracking-mode-tabs button {
    min-height: 60px;
  }

  .tracking-levels {
    gap: 4px;
  }

  .tracking-levels button {
    min-height: 54px;
  }

  .tracking-levels small {
    font-size: 8px;
  }

  .tracking-game-shell {
    padding-right: 12px;
    padding-left: 12px;
  }

  .tracking-number-pad {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .tracking-direction-answer-head {
    align-items: flex-end;
  }

  .tracking-shape-ball {
    width: 50px;
    height: 50px;
  }

  .tracking-shape-ball > span {
    width: 34px;
    height: 34px;
  }

  .tracking-shape-ball.target-visible > span,
  .tracking-shape-ball.numbered > span {
    width: 40px;
    height: 40px;
  }
}

/* ================= 纵深追踪：3D 玻璃舱 ================= */
.tracking-depth-field {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 4 / 5;
  margin: 0 auto;
  overflow: hidden;
  border: 2px solid #ded5ee;
  border-radius: 16px;
  background: #fff;
  box-shadow:
    inset 0 0 0 7px #faf8ff,
    0 10px 26px rgba(109, 40, 217, 0.08);
  isolation: isolate;
  touch-action: manipulation;
}

.tracking-depth-cage {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.tracking-depth-ball {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  display: block;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  transform: translate(-50%, -50%);
  will-change: transform;
}

button.tracking-depth-ball {
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.tracking-depth-core {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(
    circle at 32% 28%,
    #a98ccf 0%,
    #7b4fa8 46%,
    #5a2f82 100%
  );
  box-shadow: inset 0 -3px 6px rgba(40, 18, 64, 0.28);
}

.tracking-depth-ball.purple2 .tracking-depth-core {
  background: radial-gradient(
    circle at 32% 28%,
    #c3b0dd 0%,
    #9a7cc4 48%,
    #7b5ca5 100%
  );
}

.tracking-depth-ball.deep .tracking-depth-core {
  background: radial-gradient(
    circle at 32% 28%,
    #6e4696 0%,
    #4a2675 50%,
    #331753 100%
  );
}

.tracking-depth-ball.is-gold .tracking-depth-core {
  background: radial-gradient(
    circle at 32% 28%,
    #ffe88d 0%,
    #e8c24e 48%,
    #b8902a 100%
  );
  box-shadow:
    inset 0 -3px 6px rgba(120, 86, 8, 0.32),
    0 0 0 2px rgba(212, 175, 55, 0.55);
}

/* 慢速（低龄）档：近球遮挡目标时半透明，提示遮挡关系 */
.tracking-depth-ball.depth-see-through {
  opacity: 0.55;
}

/* 停稳作答后的球体编号：反向缩放保持远近球编号同等大小 */
.tracking-depth-num {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, 0.96);
  text-shadow: 0 1px 2px rgba(40, 18, 64, 0.65);
  pointer-events: none;
}

/* 作答点选态 */
.tracking-depth-ball.is-picked .tracking-depth-core {
  outline: 3px solid #ffd400;
  outline-offset: -1px;
}

button.tracking-depth-ball.is-picked {
  z-index: 900 !important;
}

button.tracking-depth-ball:active .tracking-depth-core {
  transform: scale(0.9);
}

/* 答错公布：点错的球红圈 */
.tracking-depth-ball.is-wrong .tracking-depth-core {
  outline: 3px solid #d05a6e;
  outline-offset: -1px;
}

.tracking-depth-review {
  width: min(100%, 360px);
  margin: 0 auto;
}

.tracking-depth-review .tracking-depth-field {
  aspect-ratio: 4 / 5;
}

@media (max-width: 600px) {
  .tracking-depth-field {
    aspect-ratio: 3 / 4;
    border-radius: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tracking-orbit-preview i,
  .tracking-shape-ball.target-visible > span {
    animation: none;
  }

  .tracking-depth-ball {
    will-change: auto;
  }
}