/* Deliberately scoped: no administrative, visitor or practice-player restyling. */
body[data-role="student"][data-page-module="home"][data-shell="app"] {
  --sh-ink: #252c30;
  --sh-muted: #5f6d71;
  --sh-accent: #c44335;
  --sh-teal: #246973;
  --sh-line: #e0e7e8;
  background: #fff;
  color: var(--sh-ink);
}
body[data-role="student"][data-page-module="home"] .site-header {
  position: sticky;
  inset-block-start: 0;
  width: 100%;
  height: auto;
  min-height: 72px;
  padding: 0;
  background: #fff;
  color: var(--sh-ink);
  border: 0;
  border-bottom: 1px solid var(--sh-line);
  box-shadow: none;
  backdrop-filter: none;
}
body[data-role="student"][data-page-module="home"] .site-header-inner {
  width: min(100% - 48px, 1280px);
  margin: auto;
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 24px;
}
body[data-role="student"][data-page-module="home"] .brand { flex: 0 1 auto; min-width: 0; }
body[data-role="student"][data-page-module="home"] .brand strong { color: var(--sh-ink); font-size: 18px; letter-spacing: 0; }
body[data-role="student"][data-page-module="home"] .brand span { display: none; }
body[data-role="student"][data-page-module="home"] .brand-logo { width: 42px; height: 42px; object-fit: contain; border-radius: 0; border: 0; box-shadow: none; }
body[data-role="student"][data-page-module="home"] :is(#nav,#account-nav) { position: static; display: flex; width: auto; flex-wrap: wrap; gap: 4px; background: transparent; border: 0; padding: 0; }
body[data-role="student"][data-page-module="home"] #nav { margin-inline-start: auto; }
body[data-role="student"][data-page-module="home"] :is(#nav,#account-nav) .tab { min-height: 44px; padding: 10px 12px; border: 0; border-radius: 4px; background: transparent; color: var(--sh-muted); box-shadow: none; font-size: 14px; }
body[data-role="student"][data-page-module="home"] #nav .tab.is-active { color: var(--sh-accent); background: #fff1ed; font-weight: 700; }
body[data-role="student"][data-page-module="home"] #main { width: 100%; max-width: none; margin: 0; padding: 0; }
body[data-role="student"][data-page-module="home"] #app-view { width: 100%; max-width: none; margin: 0; padding: 0; background: #fff; border: 0; box-shadow: none; }
body[data-role="student"][data-page-module="home"] #app-view > .page-head { display: none; }
body[data-role="student"][data-page-module="home"] #module-content > .student-home-v2 { display: block; width: 100%; max-width: none; margin: 0; padding: 0; background: #fff; border: 0; border-radius: 0; box-shadow: none; }
.student-home-v2 * { box-sizing: border-box; letter-spacing: 0; }
.student-home-v2 :is(h1,h2,h3,p) { margin: 0; color: inherit; overflow-wrap: anywhere; }
.student-home-v2 :is(a,button,input,summary) { font: inherit; letter-spacing: 0; }
.student-home-v2 a { text-decoration: none; }
.student-home-v2 :is(a,button,summary):focus-visible { outline: 3px solid #246973; outline-offset: 4px; }
.student-home-v2 :is(button,a) { touch-action: manipulation; }
.student-home-v2 .sh-inner { width: min(100% - 64px, 1264px); margin-inline: auto; }
.student-home-v2 .sh-welcome { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 30px 28px; }
.student-home-v2 .sh-welcome h1 { font-size: 30px; line-height: 1.35; font-weight: 700; margin: 10px 0 8px; }
.student-home-v2 .sh-welcome p { font-size: 15px; color: var(--sh-muted); }
.student-home-v2 .sh-welcome .sh-date { font-size: 13px; }
.student-home-v2 .sh-profile-link { display: flex; align-items: center; gap: 8px; color: var(--sh-teal); min-height: 44px; font-size: 14px; flex-shrink: 0; }
.student-home-v2 .sh-icon { display: inline-flex; width: 24px; height: 24px; flex-shrink: 0; }
.student-home-v2 .sh-icon svg { width: 100%; height: 100%; }
.student-home-v2 .sh-learning-band { background: #e9f5f6; padding-block: 32px; }
.student-home-v2 .sh-learning-grid { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(0,1fr); gap: 70px; align-items: start; }
.student-home-v2 .sh-current { min-width: 0; }
.student-home-v2 .sh-eyebrow { color: var(--sh-teal); font-size: 14px; font-weight: 600; margin-bottom: 15px; }
.student-home-v2 .sh-current h2 { font-size: 28px; line-height: 1.45; max-width: 24em; margin: 0 0 16px; }
.student-home-v2 .sh-description { color: var(--sh-muted); font-size: 15px; line-height: 1.7; }
.student-home-v2 .sh-result { font-size: 14px; color: var(--sh-teal); margin-top: 8px; }
.student-home-v2 .sh-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-top: 24px; }
.student-home-v2 .sh-primary { display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; min-width: 208px; min-height: 48px; padding: 12px 20px; border: 0; border-radius: 6px; background: var(--sh-accent); color: #fff; font-size: 16px; font-weight: 600; cursor: pointer; box-shadow: none; }
.student-home-v2 .sh-primary:hover { background: #a8372b; }
.student-home-v2 .sh-arrow { font-size: 21px; line-height: 1; flex-shrink: 0; }
.student-home-v2 .sh-text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--sh-teal); min-height: 44px; font-size: 14px; font-weight: 600; }
.student-home-v2 .sh-text-link:hover { text-decoration: underline; }
.student-home-v2 .sh-feedback { margin-top: 12px; color: var(--sh-muted); font-size: 14px; }
.student-home-v2 .sh-retry { min-height: 44px; border: 0; background: transparent; padding: 4px 10px; color: var(--sh-teal); text-decoration: underline; cursor: pointer; }
.student-home-v2 .sh-progress-label { display: flex; justify-content: space-between; gap: 12px; margin-top: 16px; font-size: 14px; color: var(--sh-teal); }
.student-home-v2 .sh-progress { display: block; appearance: none; width: 100%; height: 6px; margin-top: 10px; border: 0; background: #cbdfe1; color: var(--sh-teal); border-radius: 3px; overflow: hidden; }
.student-home-v2 .sh-progress::-webkit-progress-bar { background: #cbdfe1; }
.student-home-v2 .sh-progress::-webkit-progress-value { background: var(--sh-teal); }
.student-home-v2 .sh-progress::-moz-progress-bar { background: var(--sh-teal); }
.student-home-v2 .sh-study-aside { min-width: 0; }
.student-home-v2 .sh-lookup { min-width: 0; padding-left: 40px; border-left: 1px solid #cbdfe1; scroll-margin-top: 90px; }
.student-home-v2 .sh-lesson-words { margin-bottom: 24px; padding-left: 40px; border-left: 1px solid #cbdfe1; }
.student-home-v2 .sh-lesson-words h3 { font-size: 19px; margin: 0 0 12px; overflow-wrap: anywhere; }
.student-home-v2 .sh-lesson-words audio { width: 150px; max-width: 100%; height: 40px; }
.student-home-v2 .sh-lesson-words small { display: block; color: var(--sh-muted); font-size: 13px; }
.student-home-v2 .sh-lookup .home-word-lookup { background: transparent; border: 0; padding: 0; border-radius: 0; box-shadow: none; }
.student-home-v2 .sh-lookup h3 { font-size: 21px; margin-bottom: 10px; }
.student-home-v2 .sh-lookup .hint { font-size: 14px; color: var(--sh-muted); line-height: 1.65; }
.student-home-v2 .sh-word-results article { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px; background: transparent; padding: 12px 0; border: 0; border-top: 1px solid #cbdfe1; }
.student-home-v2 .sh-word-results article > div { display: flex; flex-direction: column; gap: 4px; }
.student-home-v2 .sh-word-results strong { font-size: 24px; }
.student-home-v2 .sh-word-results span { color: var(--sh-teal); }
.student-home-v2 .sh-listen { display: flex; align-items: center; gap: 6px; min-height: 44px; padding: 8px; background: #fff; border: 1px solid #aacbd0; color: var(--sh-teal); cursor: pointer; }
.student-home-v2 .sh-speech-status { flex-basis: 100%; font-size: 13px; }
.student-home-v2 .sh-speech-status:empty { display: none; }
.student-home-v2 .sh-lookup :is(input,button) { min-height: 44px; border-radius: 6px; }
.student-home-v2 .sh-lookup input { min-width: 0; background: #fff; color: var(--sh-ink); border: 1px solid #a9c4c8; }
body[data-role="student"][data-page-module="home"] .student-home-v2 .sh-lookup .button { background: var(--sh-teal); border-color: var(--sh-teal); color: #fff; box-shadow: none; }
.student-home-v2 .sh-tools { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 28px; padding-block: 28px; border-bottom: 1px solid var(--sh-line); }
.student-home-v2 .sh-tools > :is(a,button) { display: flex; align-items: center; gap: 14px; min-width: 0; min-height: 60px; padding: 6px 0; color: var(--sh-ink); background: transparent; border: 0; border-radius: 0; text-align: left; cursor: pointer; }
.student-home-v2 .sh-tools > :is(a,button):hover strong { color: var(--sh-teal); }
.student-home-v2 .sh-tools .sh-icon { width: 46px; height: 46px; padding: 11px; border-radius: 8px; background: #fcebe6; color: #ae3e32; }
.student-home-v2 .sh-tools > :nth-child(2) .sh-icon { background: #e9f2f8; color: #38688b; }
.student-home-v2 .sh-tools > :nth-child(3) .sh-icon { background: #eef3e7; color: #59703d; }
.student-home-v2 .sh-tools strong { display: block; font-size: 17px; margin-bottom: 4px; }
.student-home-v2 .sh-tools small { display: block; font-size: 13px; color: var(--sh-muted); }
.student-home-v2 .sh-tools .sh-arrow { margin-left: auto; color: var(--sh-muted); }
.student-home-v2 .sh-voice { padding-block: 8px; border-bottom: 1px solid var(--sh-line); scroll-margin-top: 90px; }
.student-home-v2 summary { min-height: 44px; padding-block: 10px; color: var(--sh-teal); cursor: pointer; }
.student-home-v2 .sh-voice .voice-topic-grid { margin: 12px 0 20px; }
.student-home-v2 .sh-content-grid { display: grid; grid-template-columns: minmax(0,2fr) minmax(0,1fr); gap: 64px; padding-block: 28px 36px; }
.student-home-v2 .sh-section-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; margin-bottom: 16px; }
.student-home-v2 .sh-section-heading h2 { font-size: 22px; line-height: 1.4; }
.student-home-v2 .sh-textbooks { min-width: 0; scroll-margin-top: 90px; }
.student-home-v2 .sh-search { display: flex; margin-bottom: 18px; border: 1px solid #bccbce; border-radius: 6px; background: #fff; overflow: hidden; }
.student-home-v2 .sh-search input { width: 100%; min-width: 0; min-height: 44px; padding: 10px 14px; border: 0; box-shadow: none; background: transparent; color: var(--sh-ink); font-size: 14px; }
.student-home-v2 .sh-search button { display: grid; place-items: center; width: 48px; flex-shrink: 0; min-height: 44px; border: 0; background: transparent; color: var(--sh-teal); cursor: pointer; }
.student-home-v2 .sh-search:focus-within { outline: 2px solid var(--sh-teal); outline-offset: 2px; }
.student-home-v2 .sh-textbook-group { margin-bottom: 20px; }
.student-home-v2 .sh-textbook-group h3 { font-size: 14px; color: var(--sh-muted); margin-bottom: 10px; }
.student-home-v2 .sh-book-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.student-home-v2 .sh-book-grid:has(> :only-child) { grid-template-columns: minmax(0,1fr); }
.student-home-v2 .course-cover-card { display: flex; flex-direction: column; align-items: stretch; width: 100%; min-width: 0; margin: 0; padding: 12px; gap: 12px; border: 1px solid var(--sh-line); background: #fff; color: var(--sh-ink); border-radius: 8px; box-shadow: none; overflow: hidden; text-align: left; }
.student-home-v2 .course-cover-card:hover { border-color: var(--sh-teal); transform: none; box-shadow: none; }
.student-home-v2 .course-cover-media { display: grid; place-items: center; width: 100%; height: auto; aspect-ratio: 12/7; border: 0; background: #f4f7f7; border-radius: 4px; overflow: hidden; }
.student-home-v2 .course-cover-media img { width: 100%; height: 100%; object-fit: contain; }
.student-home-v2 .course-cover-copy { padding: 0; min-width: 0; }
.student-home-v2 .course-cover-copy strong { color: var(--sh-ink); font-size: 19px; line-height: 1.5; }
.student-home-v2 .course-cover-copy small { color: var(--sh-muted); font-size: 13px; line-height: 1.7; }
.student-home-v2 .course-cover-copy::after { content: "查看課目 →"; display: block; margin-top: 14px; color: var(--sh-teal); font-size: 14px; }
.student-home-v2 .sh-book-grid > :only-child { display: grid; grid-template-columns: minmax(0,0.9fr) minmax(0,1fr); align-items: center; gap: 20px; }
.student-home-v2 .sh-courses { min-width: 0; padding-left: 28px; border-left: 1px solid var(--sh-line); }
.student-home-v2 .sh-lesson { display: flex; gap: 16px; padding-block: 12px 20px; border-bottom: 1px solid var(--sh-line); }
.student-home-v2 .sh-lesson > div:last-child { min-width: 0; }
.student-home-v2 .sh-lesson h3 { font-size: 17px; line-height: 1.5; margin-bottom: 5px; }
.student-home-v2 .sh-lesson p { color: var(--sh-muted); font-size: 14px; line-height: 1.8; }
.student-home-v2 .sh-calendar { width: 56px; height: 66px; flex-shrink: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; background: #fcebe6; border-radius: 6px; color: var(--sh-accent); }
.student-home-v2 .sh-calendar span { font-size: 12px; }
.student-home-v2 .sh-calendar strong { font-size: 25px; line-height: 1.35; }
.student-home-v2 .sh-empty { padding: 16px 0; font-size: 15px; color: var(--sh-muted); line-height: 1.7; }
.student-home-v2 .sh-member-links { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: 16px; }
.student-home-v2 .sh-member-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--sh-teal); font-size: 14px; }
.student-home-v2 .sh-notices { padding-block: 24px; border-top: 1px solid var(--sh-line); }
.student-home-v2 .sh-notices article { padding: 12px 0; }
.student-home-v2 .sh-notices h3 { font-size: 16px; margin-bottom: 6px; }
.student-home-v2 .sh-notices p { font-size: 14px; line-height: 1.7; color: var(--sh-muted); white-space: pre-line; }
.student-home-v2 .sh-promotions { border-top: 1px solid var(--sh-line); padding-block: 12px; }
.student-home-v2 .sh-promotions img { display: block; width: 100%; height: auto; object-fit: contain; margin-block: 10px; }
.student-home-v2 .sh-footer { padding: 16px 0 32px; border-top: 1px solid var(--sh-line); }
.student-home-v2 .sh-footer nav { display: flex; flex-wrap: wrap; gap: 0 24px; }
.student-home-v2 .sh-footer a { display: inline-flex; align-items: center; min-height: 44px; color: var(--sh-muted); font-size: 13px; }
.student-home-v2 .sh-footer nav button { min-height: 44px; padding: 0; background: transparent; border: 0; color: var(--sh-muted); font-size: 13px; cursor: pointer; }
.student-home-v2 .sh-footer :is(.learning-section,.home-copyright-disclaimer) { margin: 0; padding: 12px 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
body[data-role="student"][data-page-module="home"] .student-home-v2 .copyright-disclaimer { margin: 0; padding: 12px 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
body[data-role="student"][data-page-module="home"] .home-ad-placeholder { display: none; }
body[data-role="student"][data-page-module="home"] .site-copyright-strip { padding: 16px 24px; border: 0; background: #fff; color: #5f6d71; font-size: 12px; }
@media (min-width: 701px) {
  body[data-role="student"][data-page-module="home"] #bottom-nav { display: none; }
}
@media (max-width: 980px) {
  body[data-role="student"][data-page-module="home"] .site-header-inner { gap: 10px; flex-wrap: wrap; }
  body[data-role="student"][data-page-module="home"] #nav { order: 3; width: 100%; margin: 0; }
  body[data-role="student"][data-page-module="home"] #account-nav { margin-left: auto; }
  .student-home-v2 .sh-learning-grid { gap: 28px; }
  .student-home-v2 .sh-lookup { padding-left: 24px; }
  .student-home-v2 .sh-content-grid { gap: 28px; }
  .student-home-v2 .sh-courses { padding-left: 20px; }
  .student-home-v2 .sh-tools { gap: 16px; }
  .student-home-v2 .sh-tools .sh-arrow { display: none; }
}
@media (max-width: 700px) {
  body[data-role="student"][data-page-module="home"] .site-header { min-height: 64px; }
  body[data-role="student"][data-page-module="home"] .site-header-inner { width: calc(100% - 32px); padding-block: 10px; flex-wrap: nowrap; }
  body[data-role="student"][data-page-module="home"] .brand { gap: 8px; }
  body[data-role="student"][data-page-module="home"] .brand strong { font-size: 15px; }
  body[data-role="student"][data-page-module="home"] .brand-logo { width: 34px; height: 34px; }
  body[data-role="student"][data-page-module="home"] #nav { display: none; }
  body[data-role="student"][data-page-module="home"] #account-nav { flex: 0 0 auto; }
  body[data-role="student"][data-page-module="home"] #account-nav .tab { padding: 8px; font-size: 13px; white-space: nowrap; }
  body[data-role="student"][data-page-module="home"] #bottom-nav { background: #fff; border-top: 1px solid var(--sh-line); box-shadow: none; padding-bottom: max(8px,env(safe-area-inset-bottom)); }
  body[data-role="student"][data-page-module="home"] #bottom-nav button { min-width: 0; min-height: 52px; color: var(--sh-muted); border-radius: 0; }
  body[data-role="student"][data-page-module="home"] #bottom-nav button.is-active { color: var(--sh-accent); background: #fff1ed; }
  .student-home-v2 .sh-inner { width: calc(100% - 40px); }
  .student-home-v2 .sh-welcome { padding-block: 22px; }
  .student-home-v2 .sh-welcome h1 { font-size: 26px; }
  .student-home-v2 .sh-profile-link { display: none; }
  .student-home-v2 .sh-learning-band { padding-block: 24px; }
  .student-home-v2 .sh-learning-grid { grid-template-columns: minmax(0,1fr); gap: 24px; }
  .student-home-v2 .sh-current h2 { font-size: 25px; }
  .student-home-v2 .sh-actions { gap: 8px; margin-top: 18px; }
  .student-home-v2 .sh-primary { width: 100%; }
  .student-home-v2 .sh-lookup { display: none; padding: 20px 0 0; border-left: 0; border-top: 1px solid #cbdfe1; }
  .student-home-v2 .sh-lookup.is-open { display: block; }
  .student-home-v2 .sh-lesson-words { padding: 20px 0 0; margin: 0; border-left: 0; border-top: 1px solid #cbdfe1; }
  .student-home-v2 .sh-lesson-words .sh-word-results article { flex-wrap: wrap; }
  .student-home-v2 .sh-study-aside:not(:has(.sh-lesson-words)):not(:has(.sh-lookup.is-open)):not(:has(.sh-feedback)) { display: none; }
  body[data-role="student"][data-page-module="home"]:is(:has(.sh-lookup.is-open), :has(.sh-lesson-words)) .whatsapp-floating-contact { display: none; }
  .student-home-v2 .sh-lookup h3 { font-size: 19px; }
  .student-home-v2 .sh-tools { gap: 8px; padding-block: 20px; }
  .student-home-v2 .sh-tools > :is(a,button) { flex-direction: column; gap: 10px; text-align: center; }
  .student-home-v2 .sh-tools strong { font-size: 14px; font-weight: 600; }
  .student-home-v2 .sh-tools small { display: none; }
  .student-home-v2 .sh-content-grid { display: block; padding-block: 24px; }
  .student-home-v2 .sh-courses { border-left: 0; border-top: 1px solid var(--sh-line); padding: 24px 0 0; margin-top: 28px; }
  .student-home-v2 .sh-book-grid { grid-template-columns: minmax(0,1fr); }
  .student-home-v2 .sh-book-grid > .course-cover-card { display: grid; grid-template-columns: minmax(0,0.95fr) minmax(0,1fr); align-items: center; gap: 14px; }
  .student-home-v2 .course-cover-copy strong { font-size: 18px; }
  .student-home-v2 .sh-section-heading h2 { font-size: 21px; }
  .student-home-v2 .sh-footer { padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
}
.student-home-v2 .sh-textbook-modes { display: inline-flex; max-width: 100%; border-bottom: 1px solid var(--sh-line); margin-bottom: 16px; }
.student-home-v2 .sh-textbook-modes button { min-height: 44px; padding: 8px 16px; border: 0; border-bottom: 3px solid transparent; border-radius: 0; background: transparent; color: var(--sh-muted); font-size: 15px; }
.student-home-v2 .sh-textbook-modes button[aria-pressed="true"] { border-bottom-color: var(--sh-accent); color: var(--sh-ink); font-weight: 700; }
@media (prefers-reduced-motion: reduce) {
  .student-home-v2 * { animation: none; transition: none; scroll-behavior: auto; }
}