/* 生活英语的学习入口与随身句，沿用页面的亮色与深色主题变量。 */
button:focus-visible, textarea:focus-visible, [tabindex="-1"]:focus-visible { outline: 3px solid var(--blue-text); outline-offset: 4px; }
.view-hidden { display: none !important; }
.thread { min-height: 0; }
.learning-view { flex: 1; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 22px max(18px, var(--safe-right)) 28px max(18px, var(--safe-left)); background: var(--soft); }
.learning-intro { margin-bottom: 18px; }
.eyebrow { color: var(--green-text); font-size: 11px; font-weight: 800; letter-spacing: 1.3px; }
.learning-intro h1 { font-size: clamp(24px, 6vw, 30px); line-height: 1.3; margin: 5px 0 8px; letter-spacing: -.7px; }
.learning-intro p { margin: 0; color: var(--muted); font-size: 14px; }
.daily-practice { display: flex; align-items: center; justify-content: space-between; gap: 18px; font-size: 12px; font-weight: 700; color: var(--muted); padding-bottom: 20px; }
.daily-practice progress { width: 92px; height: 7px; border: 0; border-radius: 9px; overflow: hidden; accent-color: var(--green); background: var(--line); }
.daily-practice progress::-webkit-progress-bar { background: var(--line); border-radius: 9px; }
.daily-practice progress::-webkit-progress-value { background: var(--green); border-radius: 9px; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; }
.section-heading h2 { font-size: 17px; margin: 0; }
.section-heading > span { font-size: 12px; color: var(--muted); flex: none; }
.scenario-grid { display: flex; gap: 9px; margin: -4px -3px 18px; padding: 4px 3px 8px; overflow-x: auto; scrollbar-width: thin; scroll-snap-type: x proximity; }
.scene-tile { position: relative; display: flex; flex: 0 0 168px; scroll-snap-align: start; gap: 9px; align-items: center; text-align: left; min-height: 70px; padding: 11px 10px; border: 2px solid var(--line); background: var(--card); border-radius: 16px; }
.scene-tile.active { border-color: var(--green-d); background: var(--green-soft); }
.scene-tile b { font-size: 14px; display: block; }
.scene-tile small { display: block; color: var(--muted); font-size: 10px; line-height: 1.4; margin-top: 2px; }
.scene-icon { font-size: 23px; flex: none; }
.scene-check { position: absolute; top: 3px; right: 7px; color: var(--green-text); font-size: 12px; }
.lesson-card { background: var(--card); border: 2px solid var(--line); border-radius: 24px; padding: 18px 16px; box-shadow: 0 4px 0 var(--line); }
.lesson-top { display: flex; align-items: center; gap: 11px; flex-wrap: wrap; }
.lesson-icon { width: 50px; height: 56px; border-radius: 16px; background: var(--yellow-soft); display: grid; place-items: center; font-size: 30px; flex: none; }
.lesson-top h2 { margin: 1px 0 0; font-size: 22px; line-height: 1.3; }
.lesson-top p { margin: 3px 0 0; font-size: 12px; color: var(--muted); }
.lesson-top .eyebrow { font-size: 10px; letter-spacing: .5px; }
.duration-tag { color: var(--muted); background: var(--soft); border-radius: 20px; padding: 4px 8px; font-size: 10px; font-weight: 700; margin-left: auto; white-space: nowrap; }
.mission { margin-top: 19px; }
.mission > span { font-size: 11px; font-weight: 700; color: var(--muted); }
.mission p { margin: 3px 0 0; font-size: 16px; font-weight: 700; }
.learning-steps { display: flex; padding: 0; margin: 15px 0 20px; list-style: none; gap: 7px; }
.learning-steps li { font-size: 11px; color: var(--muted); display: flex; align-items: center; gap: 4px; flex: 1; white-space: nowrap; }
.learning-steps b { border: 1px solid var(--line-2); border-radius: 50%; width: 20px; height: 20px; display: grid; place-items: center; font-size: 10px; }
.phrase-heading { display: flex; justify-content: space-between; align-items: center; gap: 7px; }
.phrase-heading h3 { font-size: 13px; margin: 0; }
.phrase-heading > span { font-size: 10px; color: var(--muted); }
.lesson-phrase { display: flex; align-items: center; gap: 8px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.lesson-phrase > div { min-width: 0; flex: 1; }
.lesson-phrase p { font-size: 16px; font-weight: 650; margin: 0 0 3px; overflow-wrap: anywhere; }
.lesson-phrase small { font-size: 12px; color: var(--muted); display: block; }
.lesson-phrase button { flex: none; min-width: 54px; min-height: 44px; padding: 6px; border: 1px solid var(--line); border-radius: 12px; background: var(--soft); color: var(--blue-text); font-size: 11px; font-weight: 700; }
.lesson-phrase button[aria-pressed="true"] { color: var(--green-text); background: var(--green-soft); border-color: var(--green-d); }
#lessonStart { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 20px; font-size: 16px; }
#lessonStart svg { width: 18px; height: 18px; }
.lesson-text { width: 100%; background: transparent; border: 0; min-height: 44px; color: var(--blue-text); font-size: 14px; font-weight: 700; margin-top: 7px; }
.lesson-availability { font-size: 11px; line-height: 1.6; text-align: center; color: var(--muted); margin: 3px 0 14px; }
.life-tip { display: flex; align-items: start; gap: 9px; background: var(--yellow-soft); padding: 13px; border-radius: 15px; }
.life-tip > span { font-size: 24px; line-height: 1.2; color: var(--fg); }
.life-tip b { display: block; font-size: 12px; }
.life-tip p { font-size: 12px; margin: 4px 0 0; line-height: 1.6; }
.learning-nav { flex: none; display: flex; border-top: 2px solid var(--line); background: var(--bg); padding: 7px 8px calc(7px + var(--safe-bottom)); gap: 4px; }
.learning-nav button { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 3px; flex: 1; min-width: 0; min-height: 52px; border: 0; background: transparent; border-radius: 14px; color: var(--muted); font-size: 11px; font-weight: 700; }
.learning-nav svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.learning-nav .selected { color: var(--green-text); background: var(--green-soft); }
.learning-nav i { font-size: 10px; font-style: normal; }
.lesson-context { display: flex; align-items: center; gap: 8px; padding: 9px 14px; background: var(--green-soft); border-bottom: 1px solid var(--line); }
.lesson-context > div { flex: 1; min-width: 0; }
.lesson-context b { display: block; font-size: 12px; color: var(--green-text); }
.lesson-context span { display: block; font-size: 11px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.text-button { color: var(--blue-text); background: transparent; border: 0; font-size: 12px; font-weight: 700; min-height: 44px; padding: 4px 8px; }
.pocket-summary { display: flex; gap: 18px; padding: 12px 0 20px; font-size: 12px; color: var(--muted); }
.pocket-summary b { color: var(--green-text); font-size: 20px; }
.pocket-card { border: 2px solid var(--line); background: var(--card); border-radius: 20px; padding: 14px 16px; margin-bottom: 14px; }
.pocket-meta { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 11px; }
.pocket-meta .text-button { font-size: 11px; min-height: 36px; }
.pocket-card h3 { margin: 3px 0 10px; font-size: 15px; }
.pocket-answer { background: var(--green-soft); padding: 12px; border-radius: 12px; font-size: 18px; font-weight: 650; overflow-wrap: anywhere; }
.reveal-button { border: 2px dashed var(--line-2); padding: 12px; border-radius: 13px; background: var(--soft); color: var(--blue-text); font-size: 13px; font-weight: 700; width: 100%; min-height: 48px; }
.pocket-actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.pocket-actions button, .save-feedback { border: 1px solid var(--line-2); border-radius: 10px; background: var(--card); color: var(--blue-text); padding: 8px; min-height: 44px; font-size: 12px; font-weight: 700; }
.pocket-actions [aria-pressed="true"] { background: var(--green-soft); color: var(--green-text); border-color: var(--green-d); }
.pocket-status, .local-note { color: var(--muted); font-size: 11px; line-height: 1.7; margin: 12px 0 0; }
.phrase-empty { text-align: center; padding: 30px 10px; border: 2px dashed var(--line-2); border-radius: 22px; }
.phrase-empty > span { color: var(--green-text); font-size: 45px; }
.phrase-empty h2 { font-size: 19px; }
.phrase-empty p { color: var(--muted); font-size: 14px; }
.phrase-empty button { font-size: 14px; }
.learning-load { font-size: 14px; padding: 20px 0; color: var(--muted); }
.call-mission { background: rgba(0, 0, 0, .18); border: 1px solid rgba(255,255,255,.25); border-radius: 16px; padding: 10px 13px; width: 100%; margin-top: 10px; text-align: left; }
.call-mission b { font-size: 13px; }
.call-mission p { font-size: 12px; margin: 3px 0; }
.call-mission button { background: transparent; border: 0; color: #fff; padding: 8px 0; min-height: 40px; text-decoration: underline; font-size: 12px; }
#callPhraseHint { background: rgba(255,255,255,.96); color: #25372a; padding: 10px; border-radius: 10px; font-size: 16px; }
.meta { font: inherit; font-size: 11px; background: transparent; border: 0; }
.meta:not(.failed) { cursor: default; }
.meta:disabled { opacity: 1; }
.pill { bottom: calc(var(--composer-h, 64px) + 82px + var(--safe-bottom)); }
/* 亮绿保留为品牌色，文字采用深色以保证可读性。 */
.btn3d.green, .round-btn.call, .primary, .call-banner { color: #183c08; }
.btn3d.blue, .round-btn.send { color: #07384e; }
.btn3d.red { color: #391010; }
.save-feedback { margin-top: 7px; }
.topbar { flex-wrap: wrap; }
.call-banner { order: 8; width: 100%; min-height: 36px; }
@media (max-width: 359px) {
  .topbar { gap: 6px; padding-left: 10px; padding-right: 10px; }
  .topbar .avatar { width: 36px; height: 36px; }
  .topbar .streak { padding: 5px; min-width: 36px; }
  .learning-view { padding-left: 12px; padding-right: 12px; }
  .scene-tile { flex-basis: 151px; gap: 6px; padding: 10px 7px; }
  .scene-icon { font-size: 19px; }
  .scene-tile b { font-size: 13px; }
  .lesson-card { padding: 15px 12px; }
  .phrase-heading > span { max-width: 102px; text-align: right; }
  .duration-tag { margin-left: 61px; }
}
@media (min-width: 700px) { #app { border-left: 1px solid var(--line); border-right: 1px solid var(--line); } }