*{box-sizing:border-box}:root{--red:#b51f38;--red-deep:#8e1830;--purple:#7651ad;--ink:#261a1d;--muted:#7b6a6e;--line:rgba(60,22,30,.12);--line-strong:rgba(60,22,30,.18);--surface-soft:#f8f0ee;--shadow-sm:0 12px 34px rgba(67,31,37,.08);--shadow-md:0 20px 50px rgba(67,31,37,.14)}body{margin:0;color:var(--ink);background:radial-gradient(circle at top left,rgba(181,31,56,.12),transparent 34rem),linear-gradient(180deg,#fff8f7,#fbf3ef 48%,#fffdfc);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.container{width:min(1320px,calc(100% - 48px));margin:0 auto}.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(16px);background:rgba(255,253,252,.86);border-bottom:1px solid var(--line)}.header-inner{width:min(1520px,calc(100% - 48px));margin:0 auto;min-height:78px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:12px;min-width:230px}.brand-mark{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:900;background:var(--red)}.brand-copy strong,.brand-copy span{display:block}.brand-copy span{color:var(--muted);font-size:12px}.main-nav{flex:1;display:flex;justify-content:center;gap:6px;flex-wrap:wrap}.nav-link{padding:10px 12px;border-radius:999px;color:#624f53;font-weight:700;font-size:14px;white-space:nowrap}.nav-link.active,.nav-link:hover{background:rgba(181,31,56,.10);color:var(--red-deep)}.header-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.primary-btn,.outline-btn,.soft-btn,.tab-btn{border:0;cursor:pointer;border-radius:999px;padding:11px 18px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}.primary-btn{background:var(--red);color:white;box-shadow:0 10px 24px rgba(181,31,56,.22)}.outline-btn{background:transparent;border:1px solid var(--line-strong);color:var(--red-deep)}.soft-btn{background:rgba(181,31,56,.08);color:var(--red-deep)}.tab-btn{background:#fff;border:1px solid var(--line);color:var(--muted)}.tab-btn.active{background:var(--red);color:#fff;border-color:var(--red)}.hero,.page-hero{padding:62px 0 40px}.hero-shell,.page-hero-shell{border-radius:34px;padding:44px;background:linear-gradient(135deg,rgba(181,31,56,.13),rgba(118,81,173,.10)),rgba(255,255,255,.84);border:1px solid var(--line);box-shadow:var(--shadow-sm)}.hero-shell{display:grid;grid-template-columns:minmax(0,1.2fr) 360px;gap:28px;align-items:center}.eyebrow,.breadcrumb{color:var(--red-deep);font-weight:800;letter-spacing:.02em}h1{font-size:clamp(38px,5vw,68px);line-height:1.05;margin:14px 0}h2{font-size:34px;margin:0 0 8px}h3{font-size:22px;margin:0 0 8px}p{color:var(--muted);line-height:1.75}.hero-actions,.toolbar-actions,.form-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.hero-card,.notice-card,.auth-card,.success-panel{border-radius:28px;padding:28px;background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:var(--shadow-sm)}.section{padding:34px 0}.section-heading{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:22px}.stat-grid,.dashboard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.data-card{border-radius:26px;padding:24px;background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:var(--shadow-sm)}.data-card strong{display:block;color:var(--red-deep);font-size:38px;margin-bottom:8px}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.business-card{border:1px solid var(--line);background:rgba(255,255,255,.94);box-shadow:var(--shadow-sm);border-radius:28px;padding:24px;position:relative;overflow:hidden}.business-card-top{display:flex;justify-content:space-between;gap:18px;align-items:flex-start}.business-file-icon{width:62px;height:62px;flex:0 0 auto;border-radius:20px;display:grid;place-items:center;background:linear-gradient(145deg,rgba(181,31,56,.14),rgba(118,81,173,.12));color:var(--red-deep);font-weight:850;letter-spacing:.04em;border:1px solid rgba(181,31,56,.16)}.tag{display:inline-flex;border-radius:999px;padding:6px 10px;font-weight:800;font-size:12px}.tag.red{background:rgba(181,31,56,.10);color:var(--red-deep)}.tag.purple{background:rgba(118,81,173,.12);color:var(--purple)}.tag.gray{background:rgba(60,22,30,.08);color:var(--muted)}.meta-pill{display:inline-flex;border-radius:999px;padding:7px 10px;background:rgba(60,22,30,.06);color:#6b595d;font-size:13px;font-weight:700;margin:4px 4px 0 0}.resource-meta,.resource-stats{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;color:var(--muted)}.business-actions,.business-manage,.saved-actions,.modal-actions,.article-actions,.confirm-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px;align-items:center}.business-actions form,.saved-actions form,.modal-actions form{margin:0}.business-manage{padding-top:14px;border-top:1px dashed var(--line-strong)}.text-action{border:0;background:transparent;color:var(--red-deep);font-weight:800;cursor:pointer;padding:0}.danger-text{color:#9c2c37}.toolbar{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center;margin-top:26px}.filter-cluster{display:flex;gap:10px;flex-wrap:wrap;flex:1}.search-field,.compact-select,.field{border:1px solid var(--line-strong);background:#fff;border-radius:16px;padding:13px 14px;outline:none}.search-field{min-width:min(440px,100%);flex:1}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.field-group{display:grid;gap:8px}.field-group.full,.form-actions.full{grid-column:1/-1}label{color:#604f53;font-weight:800}.textarea{min-height:130px;resize:vertical}.composer-panel,.soft{border-radius:32px;background:rgba(255,255,255,.52)}.flash{margin-top:18px;border-radius:18px;padding:14px 18px;font-weight:800}.flash-success{background:rgba(30,140,90,.10);color:#14623d}.flash-danger{background:rgba(181,31,56,.10);color:var(--red-deep)}.flash-warning{background:rgba(210,150,20,.12);color:#8a5a08}.business-preview-shell.full-page-preview{display:grid;grid-template-columns:240px minmax(0,1fr) 300px;min-height:780px;border-radius:34px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md)}.preview-sidebar{padding:28px;background:linear-gradient(180deg,#2a151b,#5a1725);color:#fff;display:flex;flex-direction:column;gap:14px}.preview-brand-mini{display:flex;gap:14px;align-items:center;margin-bottom:18px}.preview-brand-mini span,.preview-side-note p{display:block;color:rgba(255,255,255,.72);font-size:13px}.preview-tab{border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;border-radius:16px;padding:13px 14px;text-align:left;cursor:pointer;font-weight:700}.preview-tab.active{background:#fff;color:var(--red-deep)}.preview-side-note{margin-top:auto;padding:16px;border-radius:18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}.preview-main-pane{padding:30px;background:#f7f1ef}.preview-info-pane{padding:30px 28px;background:#fff;border-left:1px solid var(--line);display:grid;gap:14px;align-content:start}.preview-toolbar{display:flex;justify-content:space-between;gap:28px;align-items:flex-start;margin-bottom:22px}.preview-toolbar h2{font-size:34px;line-height:1.12;margin:12px 0 8px}.document-viewer{height:min(70vh,720px);overflow:auto;border-radius:24px;border:1px solid var(--line);background:#e9e0dc;padding:24px}.document-pages{display:grid;gap:22px}.document-page{width:min(760px,100%);margin:0 auto;min-height:520px;padding:34px;border-radius:18px;background:#fff;box-shadow:0 18px 44px rgba(47,29,32,.15);border:1px solid rgba(0,0,0,.04)}.document-page-head{display:flex;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding-bottom:16px;color:var(--red-deep);font-weight:800}.document-page-head em{color:var(--muted);font-style:normal}.document-text{white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;line-height:1.8;font-size:15px;margin:24px 0 0}.image-preview-stage{height:100%;display:grid;place-items:center}.image-preview-stage img{max-width:100%;max-height:100%;border-radius:18px;box-shadow:var(--shadow-md);background:#fff}.pdf-preview-frame{width:100%;min-height:100%;height:660px;border:0;border-radius:18px;background:#fff}.full-btn{width:100%;justify-content:center}.metadata-item{border-radius:18px;padding:15px 16px;background:var(--surface-soft);border:1px solid var(--line);color:var(--muted)}.metadata-board{display:grid;gap:12px}.magazine-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.magazine-card{min-height:300px;padding:30px;border-radius:30px;border:1px solid var(--line);position:relative;overflow:hidden;background:radial-gradient(circle at top right,rgba(181,31,56,.10),transparent 35%),rgba(255,255,255,.94);box-shadow:var(--shadow-sm)}.magazine-card.insight{background:radial-gradient(circle at top right,rgba(118,81,173,.14),transparent 35%),rgba(255,255,255,.94)}.magazine-number{position:absolute;top:22px;right:24px;font-size:44px;font-weight:900;color:rgba(181,31,56,.10);letter-spacing:-.04em}.commercial-article{padding:42px 0}.article-hero{padding:34px;border-radius:30px;background:linear-gradient(135deg,rgba(181,31,56,.12),rgba(118,81,173,.10)),#fff;border:1px solid var(--line)}.article-hero h1{font-size:clamp(34px,4vw,54px)}.article-byline{color:var(--red-deep);font-weight:700}.article-body{padding:18px 4px;font-size:19px;line-height:1.95}.saved-resource-row{padding:22px;border-radius:24px;border:1px solid var(--line);background:rgba(255,255,255,.9);box-shadow:var(--shadow-sm);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:22px;align-items:center;margin-bottom:14px}.admin-table-wrap{overflow:auto;border-radius:24px;border:1px solid var(--line);background:#fff}.admin-table{width:100%;border-collapse:collapse}.admin-table th,.admin-table td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left}.empty-state{border-radius:24px;padding:28px;background:#fff;border:1px dashed var(--line-strong);color:var(--muted)}.top-gap{margin-top:18px}.auth-section{display:grid;place-items:center}.auth-card{width:min(620px,100%)}.auth-card.wide{width:min(920px,100%)}.credential-box{background:var(--surface-soft);border-radius:18px;padding:18px;margin:18px 0}.site-footer{padding:42px 0;border-top:1px solid var(--line);margin-top:40px}.footer-note{display:flex;justify-content:space-between;gap:20px;color:var(--muted);flex-wrap:wrap}@media(max-width:1200px){.hero-shell,.business-preview-shell.full-page-preview{grid-template-columns:1fr}.stat-grid,.dashboard-grid,.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.main-nav{order:3;width:100%;justify-content:flex-start}.header-inner{flex-wrap:wrap;padding:12px 0}}@media(max-width:760px){.container,.header-inner{width:min(100% - 28px,1320px)}.hero-shell,.page-hero-shell{padding:28px}.stat-grid,.dashboard-grid,.card-grid,.magazine-grid,.form-grid,.saved-resource-row{grid-template-columns:1fr}.filter-cluster{display:grid;width:100%}}


/* V2 backend additions */
.toast{position:fixed;right:28px;bottom:28px;z-index:800;min-width:220px;max-width:420px;padding:14px 18px;border-radius:18px;background:#25181b;color:#fff;box-shadow:0 20px 60px rgba(0,0,0,.26);transform:translateY(20px);opacity:0;pointer-events:none;transition:.22s ease}.toast.show{transform:translateY(0);opacity:1}button[disabled]{opacity:.72;cursor:not-allowed}.inline-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:0}.avatar-placeholder{width:74px;height:94px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(145deg,rgba(181,31,56,.15),rgba(255,255,255,.85));color:var(--red-deep);font-size:32px;font-weight:900;border:1px solid var(--line)}.teacher-avatar{background:linear-gradient(145deg,rgba(118,81,173,.18),rgba(255,255,255,.85));color:var(--purple)}.house-red{border-top:4px solid var(--red)}.house-purple{border-top:4px solid var(--purple)}.house-blue{border-top:4px solid var(--blue)}.chat-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:22px}.chat-sidebar{align-self:start}.chat-room-link{display:grid;gap:4px;padding:14px 16px;border-radius:18px;border:1px solid var(--line);margin:10px 0;background:rgba(255,255,255,.72)}.chat-room-link.active{background:rgba(181,31,56,.10);color:var(--red-deep)}.chat-room-link span{color:var(--muted);font-size:13px}.message-list{display:grid;gap:12px;max-height:540px;overflow:auto;padding:8px;border-radius:22px;background:var(--surface-soft);border:1px solid var(--line)}.message-bubble{padding:14px 16px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);margin-top:10px}.message-meta{color:var(--muted);font-size:13px;font-weight:700;margin-bottom:6px}.chat-input-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;margin-top:14px}.answer-card{margin-bottom:14px}.notice-card a{color:var(--red-deep);font-weight:800}@media(max-width:900px){.chat-layout,.chat-input-row{grid-template-columns:1fr}}


/* V3 profile, teacher hall, encrypted chats */
.directory-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.student-profile-card,
.teacher-profile-card,
.profile-hero-card,
.encryption-banner {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.94);
  border-radius: 30px;
  box-shadow: var(--shadow-sm);
}
.student-profile-card {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 22px;
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.student-profile-card.house-red { border-top: 5px solid var(--red); }
.student-profile-card.house-purple { border-top: 5px solid var(--purple); }
.student-profile-card.house-blue { border-top: 5px solid var(--blue); }
.student-photo-wrap {
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 12px;
}
.student-photo,
.teacher-photo,
.profile-photo,
.profile-photo-large {
  object-fit: cover;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.student-photo {
  width: 128px;
  height: 168px;
  border-radius: 22px;
}
.teacher-photo {
  width: 120px;
  height: 150px;
  border-radius: 24px;
}
.profile-photo-large {
  width: 190px;
  height: 240px;
  border-radius: 30px;
}
.photo-placeholder {
  display: grid;
  place-items: center;
  font-size: 48px;
  font-weight: 900;
  color: var(--red-deep);
  background: linear-gradient(145deg, rgba(181,31,56,.14), rgba(255,255,255,.85));
}
.verified-badge {
  display: inline-flex;
  border-radius: 999px;
  padding: 7px 11px;
  background: rgba(22,130,78,.10);
  color: #137446;
  font-size: 12px;
  font-weight: 900;
}
.student-card-body h3,
.teacher-card-main h3 {
  margin: 12px 0 3px;
}
.student-card-body h3 small,
.profile-hero-card h1 small,
.teacher-card-main h3 small {
  color: var(--muted);
  font-size: .55em;
}
.english-name,
.muted-line {
  color: var(--muted);
  margin: 4px 0;
}
.student-message,
.profile-quote {
  color: #4d3b3f;
  background: var(--surface-soft);
  border-left: 4px solid rgba(181,31,56,.28);
  border-radius: 16px;
  padding: 14px 16px;
}
.profile-hero-card {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 34px;
  padding: 34px;
  align-items: center;
}
.profile-info-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.teacher-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.teacher-profile-card {
  overflow: hidden;
}
.teacher-cover {
  height: 88px;
  background: linear-gradient(135deg, rgba(181,31,56,.16), rgba(118,81,173,.18));
}
.teacher-card-main {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 22px;
  padding: 0 26px 26px;
  margin-top: -48px;
}
.teacher-detail-hero {
  background: linear-gradient(135deg, rgba(118,81,173,.12), rgba(255,255,255,.94));
}
.tag.gray {
  background: rgba(60,22,30,.08);
  color: var(--muted);
}
.encryption-banner {
  padding: 22px 26px;
  border-left: 5px solid var(--purple);
}
.chat-room-link small {
  color: var(--red-deep);
  font-weight: 800;
}
.small-textarea {
  min-height: 80px;
}
@media (max-width: 980px) {
  .directory-grid,
  .teacher-grid,
  .student-profile-card,
  .teacher-card-main,
  .profile-hero-card,
  .profile-info-grid {
    grid-template-columns: 1fr;
  }
  .student-photo-wrap,
  .profile-photo-large-wrap {
    justify-items: start;
  }
}


/* V4 chat/delete/call refinements */
.toast {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 800;
  min-width: 220px;
  max-width: 420px;
  padding: 14px 18px;
  border-radius: 18px;
  background: #25181b;
  color: #fff;
  box-shadow: 0 20px 60px rgba(0,0,0,.26);
  transform: translateY(20px);
  opacity: 0;
  pointer-events: none;
  transition: .22s ease;
}
.toast.show { transform: translateY(0); opacity: 1; }
button[disabled] { opacity: .68; cursor: not-allowed; }
.call-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.room-members {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 12px 0 14px;
}
.invite-panel {
  border-top: 1px dashed var(--line-strong);
  padding-top: 18px;
}
.user-search-results {
  display: grid;
  gap: 8px;
  margin-top: 10px;
  max-height: 260px;
  overflow: auto;
}
.user-result {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}
.user-result span,
.user-result small {
  display: block;
  color: var(--muted);
  font-size: 12px;
}
.user-result.disabled {
  opacity: .62;
}
#selectedUsers {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.selected-user-chip {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(181,31,56,.10);
  color: var(--red-deep);
  font-weight: 800;
}
.selected-user-chip button {
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-weight: 900;
}
.check-line {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
  margin: 8px 0;
}
.message-delete-btn {
  margin-left: 10px;
}
.call-room-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
  padding: 38px;
  border-radius: 34px;
  background: linear-gradient(135deg, rgba(181,31,56,.12), rgba(118,81,173,.12)), #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
}
.call-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.call-participants {
  border-radius: 24px;
  padding: 22px;
  background: rgba(255,255,255,.82);
  border: 1px solid var(--line);
}
@media (max-width: 980px) {
  .call-room-card {
    grid-template-columns: 1fr;
  }
}


/* V5 no-jump chat, real search, admin actions, i18n */
.language-toggle {
  min-width: 86px;
}
.chat-search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}
.user-result {
  cursor: pointer;
}
.user-result input[type="checkbox"] {
  width: 18px;
  height: 18px;
}
.user-result.disabled {
  cursor: not-allowed;
}
.admin-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.admin-actions form {
  margin: 0;
}
#currentRoomAnnouncement {
  margin-bottom: 14px;
}
.room-list {
  max-height: 360px;
  overflow: auto;
  padding-right: 4px;
}
.message-list {
  scroll-behavior: smooth;
}
@media (max-width: 760px) {
  .chat-search-row {
    grid-template-columns: 1fr;
  }
}


/* V5.2 no-jump hotfix */
.admin-actions button[type="button"] {
  white-space: nowrap;
}
.message-list {
  overscroll-behavior: contain;
}
.chat-main {
  scroll-margin-top: 100px;
}


/* V6 group admin / announcements / language */
.language-toggle {
  min-width: 86px;
}
.room-admin-panel,
.member-manage-panel {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.78);
  border-radius: 24px;
  padding: 18px;
  margin-bottom: 14px;
}
.room-admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 18px;
}
.announcement-list {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}
.announcement-item {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.86);
  padding: 12px 14px;
}
.announcement-meta {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 6px;
}
.member-manage-list {
  display: grid;
  gap: 8px;
}
.member-manage-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  border-radius: 16px;
}
.member-manage-row span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}
@media (max-width: 980px) {
  .room-admin-grid,
  .member-manage-row {
    grid-template-columns: 1fr;
  }
}


/* =========================================================
   V7 visual polish: global, cards, admin, chat, forms
   ========================================================= */
:root {
  --v7-red: #b51f38;
  --v7-red-deep: #7f1024;
  --v7-red-soft: #fff0f3;
  --v7-purple: #7451ad;
  --v7-blue: #326fbd;
  --v7-ink: #25181d;
  --v7-muted: #75676b;
  --v7-paper: rgba(255,255,255,.86);
  --v7-paper-strong: rgba(255,255,255,.96);
  --v7-line: rgba(90, 37, 50, .12);
  --v7-shadow: 0 24px 70px rgba(86, 22, 38, .13);
  --v7-shadow-soft: 0 14px 40px rgba(86, 22, 38, .09);
  --v7-radius-xl: 34px;
  --v7-radius-lg: 24px;
  --v7-radius-md: 18px;
}

body {
  background:
    radial-gradient(circle at 8% 5%, rgba(181,31,56,.10), transparent 28%),
    radial-gradient(circle at 92% 12%, rgba(116,81,173,.10), transparent 28%),
    linear-gradient(180deg, #fff8f9 0%, #fff 34%, #fff7f8 100%) !important;
  color: var(--v7-ink);
}

.site-header {
  backdrop-filter: blur(18px);
  background: rgba(255,255,255,.86) !important;
  border-bottom: 1px solid var(--v7-line) !important;
  box-shadow: 0 10px 38px rgba(84, 15, 31, .05);
}

.brand-mark,
.logo-mark {
  box-shadow: 0 14px 32px rgba(181,31,56,.25);
}

.nav-link,
.site-nav a {
  border-radius: 999px;
  transition: transform .18s ease, background .18s ease, color .18s ease;
}

.nav-link:hover,
.site-nav a:hover {
  transform: translateY(-1px);
  background: rgba(181,31,56,.08);
}

.nav-link.active,
.site-nav a.active {
  background: linear-gradient(135deg, rgba(181,31,56,.16), rgba(181,31,56,.08)) !important;
  color: var(--v7-red-deep) !important;
}

.language-toggle {
  min-width: 92px;
  height: 40px;
  border-radius: 999px !important;
  border: 1px solid rgba(181,31,56,.22) !important;
  background: rgba(255,255,255,.78) !important;
  box-shadow: 0 10px 26px rgba(181,31,56,.08);
}

.page-hero {
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 18% 24%, rgba(181,31,56,.16), transparent 30%),
    radial-gradient(circle at 84% 10%, rgba(116,81,173,.16), transparent 30%);
  pointer-events: none;
}

.page-hero-shell {
  position: relative;
  border-radius: 0 0 var(--v7-radius-xl) var(--v7-radius-xl);
}

.page-hero h1 {
  letter-spacing: -.04em;
}

.hero-glow-card {
  display: inline-flex;
  margin-top: 14px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--v7-line);
  box-shadow: var(--v7-shadow-soft);
  color: var(--v7-red-deep);
  font-weight: 900;
}

.business-card,
.magazine-card,
.data-card,
.auth-card,
.form-card,
.teacher-profile-card,
.student-profile-card,
.profile-hero-card,
.chat-sidebar,
.chat-main,
.commercial-article,
.success-panel,
.call-room-card,
.admin-table-wrap {
  border: 1px solid var(--v7-line) !important;
  background: var(--v7-paper-strong) !important;
  border-radius: var(--v7-radius-lg) !important;
  box-shadow: var(--v7-shadow-soft) !important;
}

.business-card,
.magazine-card,
.data-card,
.teacher-profile-card,
.student-profile-card {
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.business-card:hover,
.magazine-card:hover,
.data-card:hover,
.teacher-profile-card:hover,
.student-profile-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--v7-shadow) !important;
  border-color: rgba(181,31,56,.18) !important;
}

.primary-btn,
.soft-btn,
.outline-btn,
button,
input[type="submit"] {
  border-radius: 999px !important;
  font-weight: 900 !important;
  transition: transform .16s ease, box-shadow .16s ease, opacity .16s ease, background .16s ease;
}

.primary-btn:hover,
.soft-btn:hover,
.outline-btn:hover,
button:hover,
input[type="submit"]:hover {
  transform: translateY(-1px);
}

.primary-btn {
  background: linear-gradient(135deg, var(--v7-red), #d3425a) !important;
  box-shadow: 0 16px 34px rgba(181,31,56,.22) !important;
}

.soft-btn {
  background: linear-gradient(135deg, rgba(181,31,56,.10), rgba(116,81,173,.08)) !important;
  color: var(--v7-red-deep) !important;
  border: 1px solid rgba(181,31,56,.15) !important;
}

.outline-btn {
  background: rgba(255,255,255,.78) !important;
  border: 1px solid rgba(181,31,56,.22) !important;
  color: var(--v7-red-deep) !important;
}

.field,
.search-field,
.compact-select,
textarea,
select,
input {
  border-radius: 18px !important;
  border: 1px solid rgba(86,22,38,.14) !important;
  background: rgba(255,255,255,.86) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.7);
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.field:focus,
.search-field:focus,
.compact-select:focus,
textarea:focus,
select:focus,
input:focus {
  outline: none !important;
  border-color: rgba(181,31,56,.42) !important;
  box-shadow: 0 0 0 4px rgba(181,31,56,.10) !important;
  background: #fff !important;
}

.tag,
.meta-pill {
  border-radius: 999px !important;
  font-weight: 900 !important;
}

.meta-pill {
  background: rgba(181,31,56,.07) !important;
  border: 1px solid rgba(181,31,56,.10) !important;
}

.admin-table-wrap {
  overflow: hidden;
}

.admin-table {
  border-collapse: separate !important;
  border-spacing: 0 !important;
  width: 100%;
}

.admin-table thead th {
  background: linear-gradient(135deg, rgba(181,31,56,.10), rgba(116,81,173,.08)) !important;
  color: var(--v7-red-deep);
  font-weight: 950;
  padding: 15px 14px !important;
  border-bottom: 1px solid var(--v7-line);
}

.admin-table tbody td {
  padding: 14px !important;
  border-bottom: 1px solid rgba(86,22,38,.07);
}

.admin-table tbody tr {
  transition: background .16s ease;
}

.admin-table tbody tr:hover {
  background: rgba(181,31,56,.035);
}

.admin-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.admin-actions button,
.admin-actions a {
  white-space: nowrap;
}

.polished-chat-layout {
  align-items: start;
}

.chat-sidebar,
.chat-main {
  border-radius: 30px !important;
}

.panel-subtitle {
  margin-top: 6px;
  color: var(--v7-muted);
  font-size: 13px;
  font-weight: 700;
}

.section-mini-line {
  width: 54px;
  height: 4px;
  margin: 8px 0 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--v7-red), var(--v7-purple));
}

.room-list {
  max-height: 390px;
  overflow: auto;
  padding-right: 6px;
}

.chat-room-link {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(181,31,56,.10) !important;
  background: rgba(255,255,255,.74) !important;
  box-shadow: 0 8px 24px rgba(86,22,38,.05);
}

.chat-room-link::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: transparent;
  transition: background .16s ease;
}

.chat-room-link.active {
  background: linear-gradient(135deg, rgba(181,31,56,.12), rgba(255,255,255,.88)) !important;
  border-color: rgba(181,31,56,.24) !important;
}

.chat-room-link.active::before {
  background: linear-gradient(180deg, var(--v7-red), var(--v7-purple));
}

.encryption-banner {
  background: linear-gradient(135deg, rgba(181,31,56,.10), rgba(116,81,173,.08)), rgba(255,255,255,.88) !important;
  border: 1px solid rgba(181,31,56,.14) !important;
  border-radius: 28px !important;
  box-shadow: var(--v7-shadow-soft);
}

.room-admin-panel,
.member-manage-panel,
.notice-card {
  border: 1px solid var(--v7-line) !important;
  background: rgba(255,255,255,.82) !important;
  border-radius: 24px !important;
  box-shadow: 0 12px 30px rgba(86,22,38,.06);
}

.room-admin-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 18px;
}

.announcement-list {
  display: grid;
  gap: 12px;
  margin-top: 10px;
}

.announcement-item {
  border: 1px solid rgba(181,31,56,.10);
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(255,255,255,.95), rgba(255,246,248,.82));
  padding: 14px 16px;
  box-shadow: 0 10px 26px rgba(86,22,38,.06);
}

.announcement-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.announcement-meta {
  color: var(--v7-muted);
  font-size: 12px;
  font-weight: 900;
}

.announcement-body {
  color: var(--v7-ink);
  line-height: 1.68;
}

.member-manage-list {
  display: grid;
  gap: 9px;
}

.member-manage-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 170px;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid rgba(181,31,56,.10);
  background: rgba(255,255,255,.82);
  border-radius: 18px;
}

.member-manage-row span {
  display: block;
  color: var(--v7-muted);
  font-size: 12px;
  font-weight: 800;
}

.user-search-results {
  border-radius: 18px;
}

.user-result {
  border: 1px solid rgba(181,31,56,.10) !important;
  background: rgba(255,255,255,.82) !important;
  box-shadow: 0 8px 20px rgba(86,22,38,.04);
  cursor: pointer;
}

.user-result:hover {
  border-color: rgba(181,31,56,.22) !important;
  background: #fff !important;
}

.selected-user-chip {
  box-shadow: 0 8px 20px rgba(181,31,56,.08);
}

.message-list {
  border: 1px solid rgba(181,31,56,.10) !important;
  background:
    linear-gradient(180deg, rgba(255,255,255,.64), rgba(255,247,249,.64)) !important;
  border-radius: 26px !important;
  overscroll-behavior: contain;
}

.message-bubble {
  border: 1px solid rgba(181,31,56,.09) !important;
  border-radius: 20px !important;
  background: rgba(255,255,255,.92) !important;
  box-shadow: 0 8px 22px rgba(86,22,38,.05);
}

.message-meta {
  color: var(--v7-muted) !important;
  font-weight: 900 !important;
}

.chat-input-row {
  position: sticky;
  bottom: 12px;
  z-index: 5;
  padding: 10px;
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(181,31,56,.10);
  border-radius: 24px;
  backdrop-filter: blur(12px);
  box-shadow: 0 14px 34px rgba(86,22,38,.08);
}

.toast {
  border-radius: 18px !important;
  background: linear-gradient(135deg, #2a161d, #502033) !important;
  box-shadow: 0 18px 52px rgba(44, 8, 20, .28) !important;
}

.danger-text {
  color: #a80f2a !important;
}

.ann-delete-btn,
.message-delete-btn {
  background: rgba(181,31,56,.08) !important;
  border: 1px solid rgba(181,31,56,.16) !important;
  border-radius: 999px !important;
  padding: 5px 10px !important;
}

@media (max-width: 980px) {
  .room-admin-grid,
  .member-manage-row {
    grid-template-columns: 1fr;
  }
  .chat-input-row {
    position: static;
  }
}


/* =========================================================
   V8 layout fixes: form adaptation, teacher cards, chat groups
   ========================================================= */

/* Better global sizing */
* { box-sizing: border-box; }

.container {
  width: min(100% - 40px, 1380px);
  margin-inline: auto;
}

/* Fix huge/misaligned form panels such as QA publish form */
.composer-panel {
  padding-top: 34px !important;
  padding-bottom: 34px !important;
}

.composer-panel .section-heading {
  max-width: 1120px;
  margin-inline: auto;
}

.form-card,
.auth-card,
.composer-panel form {
  width: min(100%, 1120px) !important;
  margin-inline: auto !important;
  padding: clamp(22px, 3vw, 34px) !important;
  border-radius: 30px !important;
}

.form-grid {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 22px !important;
  align-items: start;
}

.field-group {
  min-width: 0;
}

.field-group.full,
.form-actions.full {
  grid-column: 1 / -1 !important;
}

.field-group label {
  display: block;
  margin-bottom: 9px;
  font-weight: 900;
  color: var(--v7-ink, #25181d);
}

.field,
.search-field,
.compact-select {
  width: 100% !important;
  min-height: 50px !important;
  padding: 12px 16px !important;
  line-height: 1.4 !important;
}

.textarea,
textarea.field {
  width: 100% !important;
  min-height: 150px !important;
  resize: vertical !important;
  padding: 15px 16px !important;
}

.form-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

/* More balanced teacher cards */
.teacher-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)) !important;
  gap: 28px !important;
  align-items: stretch;
}

.teacher-profile-card {
  min-height: 0 !important;
  overflow: hidden;
}

.teacher-cover {
  height: 96px !important;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,.46), transparent 30%),
    linear-gradient(135deg, rgba(181,31,56,.18), rgba(116,81,173,.18)) !important;
}

.teacher-card-main {
  display: grid !important;
  grid-template-columns: 150px minmax(0, 1fr) !important;
  gap: 26px !important;
  padding: 0 34px 34px !important;
  margin-top: -46px !important;
  align-items: start;
}

.teacher-photo {
  width: 132px !important;
  height: 166px !important;
  border-radius: 24px !important;
}

.teacher-card-main h3 {
  margin-top: 54px !important;
  line-height: 1.18;
}

.teacher-card-main .tag {
  margin-top: 12px;
}

.teacher-card-main p {
  max-width: 640px;
  line-height: 1.7;
}

.profile-quote {
  max-width: 620px;
  margin: 16px 0 18px !important;
}

/* Student/profile cards less likely to overflow */
.directory-grid,
.card-grid,
.magazine-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr)) !important;
}

.student-profile-card {
  grid-template-columns: 140px minmax(0, 1fr) !important;
}

/* Chat grouping */
.chat-sidebar-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
}

.chat-room-filter {
  margin: 16px 0;
}

.grouped-room-list {
  display: grid;
  gap: 14px;
}

.chat-room-section {
  border: 1px solid rgba(181,31,56,.10);
  border-radius: 22px;
  overflow: hidden;
  background: rgba(255,255,255,.66);
}

.room-section-head {
  width: 100%;
  border: 0 !important;
  border-radius: 0 !important;
  padding: 14px 16px !important;
  background: linear-gradient(135deg, rgba(181,31,56,.09), rgba(116,81,173,.06)) !important;
  color: var(--v7-ink, #25181d) !important;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: none !important;
  cursor: pointer;
  text-align: left;
}

.room-section-head span {
  display: grid;
  gap: 2px;
}

.room-section-head em {
  font-style: normal;
  font-size: 12px;
  color: var(--v7-muted, #75676b);
  font-weight: 700;
}

.room-section-head b {
  min-width: 30px;
  height: 30px;
  border-radius: 999px;
  background: rgba(255,255,255,.82);
  display: grid;
  place-items: center;
  color: var(--v7-red-deep, #7f1024);
}

.room-section-body {
  display: grid;
  gap: 8px;
  padding: 10px;
}

.chat-room-section.collapsed .room-section-body {
  display: none;
}

.empty-mini {
  padding: 12px;
  border-radius: 16px;
  background: rgba(255,255,255,.66);
  color: var(--v7-muted, #75676b);
  font-weight: 800;
  text-align: center;
}

.room-lifecycle-panel {
  border: 1px solid var(--v7-line, rgba(90,37,50,.12));
  background: rgba(255,255,255,.78);
  border-radius: 24px;
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: 0 12px 30px rgba(86,22,38,.06);
}

.room-actions-card {
  display: grid;
  gap: 12px;
}

.room-action-line {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.room-action-line select {
  max-width: 280px;
}

.room-action-note {
  color: var(--v7-muted, #75676b);
  font-weight: 800;
  background: rgba(181,31,56,.06);
  border: 1px solid rgba(181,31,56,.10);
  padding: 12px 14px;
  border-radius: 16px;
}

.chat-title-row {
  gap: 18px;
}

.chat-title-row h2 {
  line-height: 1.18;
}

.announcement-top {
  align-items: flex-start !important;
}

.ann-delete-btn {
  flex: 0 0 auto;
}

@media (max-width: 900px) {
  .form-grid,
  .teacher-card-main,
  .student-profile-card {
    grid-template-columns: 1fr !important;
  }

  .teacher-card-main h3 {
    margin-top: 12px !important;
  }

  .teacher-card-main {
    margin-top: -34px !important;
  }

  .room-action-line {
    display: grid;
    grid-template-columns: 1fr;
  }

  .room-action-line select {
    max-width: none;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 24px, 1380px);
  }

  .form-card,
  .auth-card,
  .composer-panel form {
    padding: 18px !important;
    border-radius: 22px !important;
  }

  .teacher-grid {
    grid-template-columns: 1fr !important;
  }
}



/* V9 language polish */
.language-toggle {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  min-width: 94px !important;
  height: 40px !important;
  padding: 0 16px !important;
  border-radius: 999px !important;
  font-weight: 950 !important;
  cursor: pointer !important;
  user-select: none;
}
html[lang="en"] .language-toggle {
  letter-spacing: .02em;
}



/* V10 English cleanup */
body.is-english .brand-text h1,
body.is-english .brand-title,
body.is-english .site-brand strong {
  letter-spacing: -0.02em;
  line-height: 1.1;
}

body.is-english .site-nav,
body.is-english .nav-menu {
  gap: 6px;
}

body.is-english .nav-link,
body.is-english .site-nav a {
  padding-left: 12px !important;
  padding-right: 12px !important;
}

body.is-english .hero h1,
body.is-english .page-hero h1,
body.is-english .hero-title {
  line-height: 1.03 !important;
  word-break: normal;
}

body.is-english .data-card h3,
body.is-english .business-card h3,
body.is-english .magazine-card h3,
body.is-english .chat-room-link strong,
body.is-english .room-section-head strong {
  word-break: normal;
  overflow-wrap: anywhere;
}

body.is-english .chat-room-link span,
body.is-english .panel-subtitle,
body.is-english .resource-meta {
  line-height: 1.45;
}

body.is-english .chat-search-row {
  grid-template-columns: minmax(0, 1fr) auto;
}

body.is-english .primary-btn,
body.is-english .soft-btn,
body.is-english .outline-btn {
  white-space: nowrap;
}

body.is-english .hero-actions,
body.is-english .business-actions,
body.is-english .admin-actions {
  gap: 12px;
  flex-wrap: wrap;
}


/* V11 real code English + login fix */
.language-toggle { text-decoration: none !important; display:inline-flex !important; align-items:center; justify-content:center; }
.auth-card input[type="text"], .auth-card input[type="password"] { width: 100%; }
html[lang="en"] .hero h1, html[lang="en"] .page-hero h1 { word-break: normal; overflow-wrap: anywhere; }
html[lang="en"] .brand-copy strong { line-height: 1.1; }
html[lang="en"] .business-card h3, html[lang="en"] .data-card h3 { overflow-wrap: anywhere; }


/* V12 detail-page adaptation and public profile editor */
.commercial-article {
  width: min(100%, 1180px) !important;
  margin-inline: auto !important;
  overflow: hidden;
}
.commercial-article .article-hero {
  padding: clamp(28px, 4vw, 54px) !important;
}
.commercial-article .article-hero h1 {
  max-width: 980px;
  font-size: clamp(34px, 5.2vw, 76px) !important;
  line-height: 1.04 !important;
  letter-spacing: -0.05em;
  overflow-wrap: anywhere;
}
.commercial-article .article-hero p,
.commercial-article .article-byline {
  max-width: 980px;
  overflow-wrap: anywhere;
}
.article-body {
  width: min(100%, 1060px);
  margin-inline: auto;
  padding: clamp(28px, 4vw, 56px) clamp(20px, 3vw, 48px) !important;
  font-size: clamp(17px, 1.35vw, 21px) !important;
  line-height: 1.9 !important;
  color: var(--v7-muted, #75676b);
}
.article-body p {
  margin: 0 0 1.25em;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.article-actions {
  width: min(100%, 1060px);
  margin-inline: auto;
  padding: 0 clamp(20px, 3vw, 48px) clamp(28px, 4vw, 56px) !important;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.profile-edit-form {
  width: min(100%, 1180px) !important;
  display: grid;
  gap: 24px;
}
.profile-edit-photo {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  padding: 18px;
  border: 1px solid rgba(181,31,56,.10);
  border-radius: 24px;
  background: rgba(255,255,255,.66);
}
.profile-edit-photo .profile-photo-large,
.profile-edit-photo .photo-placeholder {
  width: 126px !important;
  height: 156px !important;
  border-radius: 24px !important;
}
.profile-edit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 22px;
}
.profile-edit-grid .full {
  grid-column: 1 / -1;
}
.saved-resource-row {
  width: min(100%, 1180px);
  margin-inline: auto;
}
@media (max-width: 760px) {
  .profile-edit-photo,
  .profile-edit-grid {
    grid-template-columns: 1fr;
  }
  .commercial-article .article-hero h1 {
    font-size: clamp(30px, 10vw, 48px) !important;
  }
}



/* V13 student/alumni split + registration examples */
.directory-hero-v13 .toolbar {
  margin-top: 24px;
}
.directory-overview-v13 .data-card strong {
  color: var(--v7-red-deep, #7f1024);
}
.directory-member-section {
  padding-top: 26px;
}
.directory-section-head {
  padding: 22px 26px;
  border-radius: 28px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(181,31,56,.10);
  box-shadow: 0 14px 36px rgba(86,22,38,.06);
}
.section-kicker {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: .02em;
}
.red-kicker {
  background: rgba(181,31,56,.10);
  color: #9b122b;
}
.purple-kicker {
  background: rgba(116,81,173,.12);
  color: #6640a2;
}
.directory-card-v13 {
  min-height: 100%;
}
.directory-card-topline {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.directory-mini-status {
  color: var(--v7-muted, #75676b);
  font-size: 12px;
  font-weight: 900;
}

/* V16 homepage and principal Q&A */
.home-hero-shell{grid-template-columns:minmax(0,1.25fr) minmax(280px,420px);overflow:hidden}.hero-subtitle{font-size:20px;color:var(--red-deep);font-weight:800;letter-spacing:.04em}.home-motto{margin:20px 0;padding:13px 18px;border-left:5px solid var(--red);background:rgba(255,255,255,.72);border-radius:0 18px 18px 0;font-size:22px;font-weight:900;color:var(--ink)}.home-emblem-card,.principal-portrait{min-height:390px;border-radius:34px;background:linear-gradient(155deg,var(--red-deep),var(--red));color:#fff;display:grid;place-items:center;align-content:center;gap:12px;box-shadow:0 28px 70px rgba(142,24,48,.28);text-align:center;padding:30px}.home-emblem{width:210px;height:210px;border:12px solid #fff;border-radius:50%;display:grid;place-items:center;font-size:132px;line-height:1;font-weight:950;letter-spacing:-.12em;padding-right:.12em}.home-emblem-card strong{font-size:32px;letter-spacing:.18em}.home-emblem-card span,.home-emblem-card small,.principal-portrait span,.principal-portrait small{color:rgba(255,255,255,.82)}.principal-home-feature{border-radius:36px;padding:34px;background:linear-gradient(135deg,rgba(181,31,56,.10),rgba(255,255,255,.66));border:1px solid var(--line)}.principal-hero{padding:62px 0 32px}.principal-hero-shell{display:grid;grid-template-columns:minmax(0,1.3fr) 360px;gap:34px;align-items:center;padding:48px;border-radius:38px;background:linear-gradient(135deg,#fff,rgba(181,31,56,.10));border:1px solid var(--line);box-shadow:var(--shadow-md)}.principal-hero h1{font-size:clamp(42px,6vw,76px)}.principal-portrait{min-height:410px}.principal-portrait strong{font-size:34px}.principal-seal{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;color:#fff;background:var(--red);font-weight:950;font-size:36px}.principal-seal.large{width:160px;height:160px;background:#fff;color:var(--red-deep);font-size:98px}.official-badge{display:inline-flex;border-radius:999px;padding:7px 12px;background:linear-gradient(135deg,var(--red-deep),var(--red));color:#fff;font-size:12px;font-weight:900;letter-spacing:.03em;margin:3px 6px 3px 0}.principal-qa-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.principal-qa-card{padding:28px;border-radius:28px;background:#fff;border:1px solid var(--line);border-top:5px solid var(--red);box-shadow:var(--shadow-sm)}.principal-answer-detail{max-width:980px;margin:0 auto}.principal-detail-head{padding:38px;border-radius:32px;background:linear-gradient(135deg,rgba(181,31,56,.13),#fff);border:1px solid var(--line)}.principal-detail-head h1{font-size:clamp(34px,5vw,58px)}.principal-official-answer{margin:24px 0;padding:40px;border-radius:32px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-md);font-size:19px;line-height:1.95}.principal-signature{display:flex;align-items:center;gap:15px;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:22px}.principal-signature strong,.principal-signature span{display:block}.principal-signature span{color:var(--muted);margin-top:4px}.teacher-home-card{display:grid;grid-template-columns:120px minmax(0,1fr);gap:20px}.house-showcase{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.house-panel{min-height:190px;padding:28px;border-radius:30px;color:#fff;display:grid;align-content:end;box-shadow:var(--shadow-sm)}.house-panel strong{font-size:28px}.house-panel span{font-size:18px;margin-top:6px}.house-panel.red{background:linear-gradient(145deg,#8e1830,#c9304b)}.house-panel.purple{background:linear-gradient(145deg,#52377b,#8b65c1)}.house-panel.blue{background:linear-gradient(145deg,#245283,#447bb5)}
@media(max-width:1100px){.home-hero-shell,.principal-hero-shell{grid-template-columns:1fr}.principal-qa-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.main-nav{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}.nav-link{padding:8px 10px;font-size:13px}.header-inner{gap:12px}.brand{min-width:210px}}@media(max-width:760px){.principal-qa-grid,.house-showcase,.teacher-home-card{grid-template-columns:1fr}.home-emblem-card,.principal-portrait{min-height:310px}.home-emblem{width:160px;height:160px;font-size:96px}.main-nav{order:3;width:100%;flex-wrap:nowrap}.header-actions{margin-left:auto}.brand-copy strong{font-size:14px}.brand-copy span{font-size:10px}}
.upload-limit-note{display:flex;gap:10px;align-items:flex-start;flex-wrap:wrap;margin:0;padding:13px 15px;border-radius:16px;background:rgba(181,31,56,.07);border:1px solid rgba(181,31,56,.12);color:var(--muted)}.upload-limit-note strong{color:var(--red-deep);white-space:nowrap}.upload-limit-note span{flex:1;min-width:220px}
.alumni-destination {
  font-weight: 850;
  color: #6f5260;
}
.register-card-v13 {
  overflow: hidden;
}
.register-demo-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 26px;
}
.register-demo-strip span {
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(181,31,56,.06);
  border: 1px solid rgba(181,31,56,.10);
  color: #7f6670;
  font-size: 13px;
  font-weight: 800;
}
.register-form-v13 label em {
  font-style: normal;
  color: #b51f38;
  font-size: 12px;
  margin-left: 4px;
}
.field-help {
  margin: 7px 0 0;
  color: #9a8990;
  font-size: 12px;
  line-height: 1.5;
}
.register-role-panel {
  padding: 18px;
  border-radius: 24px;
  border: 1px solid rgba(181,31,56,.12);
  background: linear-gradient(135deg, rgba(181,31,56,.055), rgba(255,255,255,.82));
}
.register-role-panel.hidden {
  display: none !important;
}
.role-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(181,31,56,.16);
}
.role-panel-head strong {
  font-size: 18px;
  color: #8f1027;
}
.role-panel-head span {
  color: #8f7a83;
  font-size: 13px;
  font-weight: 800;
}
.role-panel-head.alumni strong {
  color: #6740a0;
}
.role-panel-head.teacher strong {
  color: #245b9f;
}
.inner-grid {
  margin: 0 !important;
  padding: 0 !important;
}
.register-form-v13 ::placeholder {
  color: #a99aa1 !important;
  opacity: 1;
}
@media (max-width: 760px) {
  .role-panel-head {
    align-items: flex-start;
  }
}



/* V14: navigation split for current students / graduated alumni */
.main-nav {
  gap: 4px;
}
.main-nav .nav-link {
  white-space: nowrap;
}
.directory-switch-tabs {
  display: inline-flex;
  gap: 10px;
  margin: 18px 0 4px;
  padding: 8px;
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(181,31,56,.12);
  box-shadow: 0 12px 28px rgba(86,22,38,.06);
}
.directory-switch-tabs a {
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 950;
  color: #7f1024;
  border: 1px solid transparent;
}
.directory-switch-tabs a.active {
  color: #fff;
  background: linear-gradient(135deg, #b51f38, #d3425a);
  box-shadow: 0 12px 24px rgba(181,31,56,.20);
}
@media (max-width: 1180px) {
  .main-nav {
    overflow-x: auto;
    scrollbar-width: thin;
    max-width: 100%;
  }
  .main-nav .nav-link {
    flex: 0 0 auto;
  }
}
@media (max-width: 620px) {
  .directory-switch-tabs {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .directory-switch-tabs a {
    text-align: center;
    padding-inline: 10px;
  }
}



/* V15 independent directory counts */
.directory-switch-tabs a span {
  display: inline-grid;
  place-items: center;
  min-width: 26px;
  height: 26px;
  margin-left: 8px;
  padding: 0 8px;
  border-radius: 999px;
  background: rgba(181,31,56,.10);
  color: #8f1027;
  font-size: 13px;
  font-weight: 950;
}
.directory-switch-tabs a.active span {
  background: rgba(255,255,255,.26);
  color: #fff;
}
.directory-overview-v13 .data-card p {
  color: #7f6a72;
}

/* V18 WebRTC voice/video call room */
.call-shell{padding:28px;border-radius:28px;background:#171217;color:#fff;box-shadow:0 26px 70px rgba(31,15,22,.24)}
.call-header{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:24px}.call-header h1{margin:12px 0 6px;color:#fff}.call-header p{max-width:780px;color:#cdbfc5}
.call-status{display:flex;align-items:center;gap:9px;padding:11px 15px;border-radius:999px;background:#332a2f;white-space:nowrap}.call-status span{width:9px;height:9px;border-radius:50%;background:#aaa}.call-status.connecting span{background:#f2b84b}.call-status.connected span{background:#43d17b}.call-status.failed span{background:#ef596d}
.call-stage{position:relative;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;min-height:330px;padding:16px;border-radius:22px;background:#0b090b}
.call-tile{position:relative;min-height:260px;overflow:hidden;border-radius:20px;background:linear-gradient(145deg,#3f3038,#211a1e);border:1px solid rgba(255,255,255,.1)}.call-tile video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.call-tile:not(.media-ready) video:not([srcObject]){display:none}.call-avatar{position:absolute;inset:0;display:grid;place-items:center;font-size:68px;font-weight:950;color:#fff;background:radial-gradient(circle at 30% 20%,#b51f38,#38242d)}.call-tile video[srcObject]+.call-avatar,.call-tile.media-ready .call-avatar{display:none}.call-tile footer{position:absolute;left:0;right:0;bottom:0;display:flex;justify-content:space-between;gap:10px;padding:14px;background:linear-gradient(transparent,rgba(0,0,0,.76));font-size:13px}.call-tile footer strong{color:#fff}.call-tile footer span{color:#ddd}
.call-empty{display:grid;place-items:center;min-height:260px;padding:30px;text-align:center;color:#9d8d95;border:1px dashed #4d4147;border-radius:20px}.call-toolbar{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.call-member-panel{padding:18px;border-radius:20px;background:#241d21}.call-member-panel h2{margin-top:0;color:#fff}.call-member-list{display:flex;gap:8px;flex-wrap:wrap}.call-member-list .meta-pill{background:#3a2e34;color:#eadfe4;border-color:#514149}
@media(max-width:700px){.call-shell{padding:16px;border-radius:20px}.call-header{display:block}.call-status{margin-top:15px;width:max-content}.call-stage{grid-template-columns:1fr}.call-tile{min-height:220px}.call-toolbar>*{flex:1 1 42%;text-align:center}}

/* V19 complete mobile compatibility */
.mobile-menu-toggle{display:none}
.mobile-menu-panel{display:contents}
html{overflow-x:hidden;scroll-padding-top:96px}
body{overflow-x:hidden;min-width:0}
img,video,iframe,embed,object{max-width:100%}
pre,code,.document-text{overflow-wrap:anywhere;word-break:break-word}
.business-card,.data-card,.magazine-card,.student-profile-card,.teacher-profile-card,.chat-main,.chat-sidebar,.form-card,.auth-card{min-width:0}

@media(max-width:900px){
  html{scroll-padding-top:82px}
  .site-header{position:sticky;top:0}
  .header-inner{width:100%;min-height:68px;padding:9px 12px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 12px}
  .brand{min-width:0;gap:9px;overflow:hidden}
  .brand-mark{width:42px;height:42px;flex:0 0 42px}
  .brand-copy{min-width:0}
  .brand-copy strong,.brand-copy span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .brand-copy strong{font-size:14px}.brand-copy span{font-size:10px}
  .mobile-menu-toggle{display:grid;width:48px;height:48px;padding:10px;border:1px solid rgba(181,31,56,.16)!important;border-radius:16px!important;background:#fff!important;box-shadow:0 8px 24px rgba(86,22,38,.09)!important;place-content:center;gap:4px;color:var(--red-deep)}
  .mobile-menu-toggle span{display:block;width:22px;height:2px;border-radius:3px;background:currentColor;transition:.2s}
  .mobile-menu-toggle b{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
  .mobile-menu-open .mobile-menu-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .mobile-menu-open .mobile-menu-toggle span:nth-child(2){opacity:0}
  .mobile-menu-open .mobile-menu-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .mobile-menu-panel{display:none;grid-column:1/-1;max-height:calc(100dvh - 78px);overflow:auto;padding:8px 2px 12px;border-top:1px solid var(--line)}
  .mobile-menu-open .mobile-menu-panel{display:grid;gap:12px}
  .main-nav{display:grid!important;order:1!important;grid-template-columns:repeat(2,minmax(0,1fr));width:100%;gap:7px;overflow:visible!important;padding:0!important}
  .nav-link{display:flex;min-height:44px;padding:10px!important;border:1px solid rgba(181,31,56,.09);background:rgba(255,255,255,.76);align-items:center;justify-content:center;text-align:center;white-space:normal!important;font-size:13px}
  .header-actions{display:grid;order:2!important;grid-template-columns:repeat(2,minmax(0,1fr));width:100%;gap:8px;margin:0!important}
  .header-actions>*{width:100%;min-width:0!important;min-height:44px}

  .container{width:calc(100% - 24px)!important}
  .hero,.page-hero,.principal-hero{padding:22px 0 14px}
  .hero-shell,.page-hero-shell,.principal-hero-shell{padding:22px!important;border-radius:22px!important;gap:20px!important}
  h1,.page-hero h1,.principal-hero h1{font-size:clamp(32px,10vw,46px)!important;line-height:1.08!important;overflow-wrap:anywhere}
  h2{font-size:clamp(26px,8vw,34px)}
  h3{font-size:20px;overflow-wrap:anywhere}
  .section{padding:22px 0}
  .section-heading{display:grid;align-items:start;gap:12px;margin-bottom:16px}
  .section-heading>a,.section-heading>button{width:100%}
  .hero-actions,.toolbar-actions,.form-actions,.business-actions,.saved-actions,.article-actions,.admin-actions,.modal-actions,.confirm-actions,.call-actions{display:grid!important;grid-template-columns:1fr;width:100%;gap:9px}
  .hero-actions>*,.toolbar-actions>*,.form-actions>*,.business-actions>*,.saved-actions>*,.article-actions>*,.admin-actions>*,.modal-actions>*,.confirm-actions>*,.call-actions>*{width:100%;min-width:0}
  .primary-btn,.outline-btn,.soft-btn,.tab-btn,button,input[type=submit]{min-height:44px;padding:11px 14px}
  input,select,textarea,.field,.search-field,.compact-select{font-size:16px!important;max-width:100%;min-width:0}
  .toolbar,.filter-cluster{display:grid!important;grid-template-columns:1fr;width:100%;gap:10px}
  .search-field{min-width:0}
  .business-card,.data-card,.magazine-card,.student-profile-card,.teacher-profile-card,.profile-hero-card,.auth-card,.form-card,.success-panel{padding:18px!important;border-radius:22px!important}
  .business-card-top{display:grid;gap:12px}
  .stat-grid,.dashboard-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important;gap:10px}
  .data-card strong{font-size:30px}
  .home-emblem-card,.principal-portrait{min-height:260px;padding:22px}
  .home-emblem{width:135px;height:135px;border-width:8px;font-size:82px}
  .principal-seal.large{width:120px;height:120px;font-size:74px}
  .principal-home-feature{padding:20px;border-radius:24px}
  .principal-official-answer,.principal-detail-head{padding:22px;border-radius:24px}
  .teacher-card-main{padding:0 18px 20px!important}
  .student-photo-wrap,.profile-photo-large-wrap{justify-items:center!important}
  .profile-edit-photo{text-align:center}.profile-edit-photo>*{margin-inline:auto}
  .upload-limit-note span{min-width:0}
  .toast{left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));min-width:0;max-width:none}

  .business-preview-shell.full-page-preview{display:block;min-height:0;border-radius:20px}
  .preview-sidebar{padding:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .preview-brand-mini,.preview-side-note{grid-column:1/-1}
  .preview-main-pane,.preview-info-pane{padding:18px}
  .preview-info-pane{border-left:0;border-top:1px solid var(--line)}
  .preview-toolbar{display:grid;gap:12px}.preview-toolbar h2{font-size:26px}
  .document-viewer{height:auto;max-height:68dvh;padding:10px;border-radius:16px}
  .document-page{min-height:300px;padding:18px}.pdf-preview-frame{height:65dvh}

  .chat-layout{display:flex!important;flex-direction:column;gap:14px}
  .chat-main{order:1;padding:14px!important;display:flex;flex-direction:column}
  .chat-sidebar{order:2;padding:16px!important}
  .chat-main>.chat-title-row{order:1}.chat-main>#currentRoomAnnouncement{order:2}.chat-main>.room-members{order:3}.chat-main>.message-list{order:4}.chat-main>#chatSendForm{order:5}.chat-main>.room-admin-panel{order:6}.chat-main>.room-lifecycle-panel{order:7}.chat-main>.member-manage-panel{order:8}
  .chat-title-row{display:grid}.message-list{max-height:58dvh;min-height:320px;padding:5px}
  .message-bubble{padding:12px;margin-top:6px;overflow-wrap:anywhere}
  .message-meta{font-size:11px;line-height:1.55}
  .chat-input-row{position:sticky!important;bottom:calc(8px + env(safe-area-inset-bottom));grid-template-columns:1fr!important;padding:8px;z-index:10}
  .chat-input-row button{width:100%}
  .room-list{max-height:46dvh}.room-admin-panel,.member-manage-panel,.room-lifecycle-panel{padding:14px}
  .announcement-top{display:grid}.announcement-top button{width:100%}

  .call-shell{margin-inline:-2px;padding:14px;border-radius:18px}
  .call-header h1{font-size:28px!important}.call-stage{padding:8px;min-height:260px}.call-tile{min-height:210px}
  .call-toolbar{display:grid;grid-template-columns:1fr 1fr;gap:8px}.call-toolbar>*{width:100%;min-width:0;padding-inline:8px}
  .call-member-panel{padding:14px}.call-member-list{max-height:220px;overflow:auto}

  .admin-table-wrap{overflow-x:auto!important;-webkit-overflow-scrolling:touch;border-radius:18px!important}
  .admin-table{min-width:720px}.admin-table th,.admin-table td{padding:11px!important;font-size:13px}
  .admin-table th:first-child,.admin-table td:first-child{position:sticky;left:0;background:#fff;z-index:2}
  .inline-form{display:grid;grid-template-columns:1fr;width:100%}.inline-form>*{width:100%}
  .footer-note{display:grid;text-align:center;justify-content:center}.site-footer{padding:28px 0 calc(28px + env(safe-area-inset-bottom))}
}

@media(max-width:600px){
  .main-nav{grid-template-columns:1fr 1fr}
  .stat-grid,.dashboard-grid{grid-template-columns:1fr!important}
  .call-toolbar{grid-template-columns:1fr}
  .directory-switch-tabs{grid-template-columns:1fr!important;border-radius:20px}
  .meta-pill{max-width:100%;white-space:normal;overflow-wrap:anywhere}
}

/* V28 visible, fixed-row pagination */
.pagination-pro{display:grid;gap:13px;padding:16px;border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.88);box-shadow:var(--shadow-sm)}.pagination-links{display:flex;justify-content:center;align-items:center;gap:7px;flex-wrap:wrap}.page-link.disabled{opacity:.38;cursor:not-allowed;background:#f4eeee}.page-jump{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}.page-jump label{display:flex;align-items:center;gap:7px}.page-jump select{padding:8px 11px;border:1px solid var(--line-strong);border-radius:11px;background:#fff;color:var(--red-deep);font-weight:800}.page-jump .page-summary{width:auto}
@media(max-width:640px){.pagination-pro{padding:12px}.pagination-links{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}.pagination-links .page-link{flex:0 0 auto}.page-jump{justify-content:space-between}.page-jump .page-summary{font-size:12px}}

/* V29 meeting-style classroom prompts and per-video fullscreen */
.tile-fullscreen-button{position:absolute;right:12px;bottom:48px;z-index:8;opacity:0;transform:translateY(5px);padding:8px 11px;border:1px solid rgba(255,255,255,.22);border-radius:10px;background:rgba(8,10,14,.78);color:#fff;font-size:11px;font-weight:900;cursor:pointer;transition:.18s}.meeting-tile:hover .tile-fullscreen-button,.meeting-tile.controls-visible .tile-fullscreen-button,.meeting-tile:fullscreen .tile-fullscreen-button{opacity:1;transform:none}.meeting-tile:fullscreen{width:100vw;height:100dvh;border:0;border-radius:0;background:#05070a}.meeting-tile:fullscreen video{object-fit:contain!important;background:#05070a}.meeting-tile.screen-sharing video{object-fit:contain!important;background:#05070a;transform:none!important}.meeting-event-modal{position:fixed;inset:0;z-index:300;display:grid;place-items:center;padding:18px;background:rgba(3,5,8,.58);backdrop-filter:blur(7px)}.meeting-event-modal[hidden]{display:none}.meeting-event-card{width:min(460px,100%);display:grid;grid-template-columns:54px minmax(0,1fr);gap:14px;padding:22px;border:1px solid rgba(255,255,255,.14);border-radius:23px;background:#171c25;color:#fff;box-shadow:0 28px 90px rgba(0,0,0,.5)}.meeting-event-card p{margin:5px 0 0;color:#bfc7d4}.meeting-event-icon{width:54px;height:54px;display:grid;place-items:center;border-radius:17px;background:#b51f38;color:#fff;font-size:25px;font-weight:950}.meeting-event-actions{grid-column:1/-1;display:flex;justify-content:flex-end;gap:8px}.meeting-event-card .outline-btn,.classroom-panel .outline-btn{border-color:rgba(255,255,255,.2);background:#2a313e;color:#fff}.meeting-tile.class-host footer span{padding:4px 7px;border-radius:7px;background:#b51f38;color:#fff}.classroom-panel .soft-btn{background:#b51f38;color:#fff}
@media(hover:none){.tile-fullscreen-button{opacity:.78;transform:none}}@media(max-width:640px){.meeting-event-card{padding:18px}.meeting-event-actions{display:grid;grid-template-columns:1fr 1fr}.meeting-event-actions>*{width:100%}}

.call-tile.needs-play::after{content:"点击恢复声音";position:absolute;inset:auto 12px 54px 12px;padding:10px;border-radius:999px;background:rgba(0,0,0,.72);color:#fff;text-align:center;font-weight:900;z-index:4}
html[lang=en] .call-tile.needs-play::after{content:"Tap to Restore Audio"}

/* V21 formal meeting room and connected online classes */
.meeting-page{min-height:calc(100dvh - 82px);padding:18px;background:#090b10;color:#fff}.meeting-shell{width:min(1600px,100%);min-height:calc(100dvh - 118px);margin:auto;display:grid;grid-template-rows:auto 1fr auto;border:1px solid rgba(255,255,255,.08);border-radius:26px;background:#11141b;overflow:hidden;box-shadow:0 28px 80px rgba(0,0,0,.35)}
.meeting-active-page .site-header,.meeting-active-page .site-footer{display:none}.meeting-active-page main{min-height:100dvh;background:#090b10}
.meeting-topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 20px;border-bottom:1px solid rgba(255,255,255,.08);background:#151922}.meeting-brand,.meeting-top-meta,.meeting-brand>div{display:flex;align-items:center;gap:11px}.meeting-brand>div{align-items:flex-start;flex-direction:column;gap:1px}.meeting-brand strong{font-size:15px}.meeting-brand span,.meeting-top-meta{color:#aeb6c8;font-size:12px}.meeting-network{display:flex;align-items:center;gap:7px;padding:8px 11px;border-radius:999px;background:#202632;color:#c9d0dc}.meeting-network i,.meeting-status-banner i{width:8px;height:8px;border-radius:50%;background:#f2b84b}.meeting-network.good i,.meeting-status-banner.connected i{background:#43d17b}.meeting-network.fair i{background:#f2b84b}.meeting-network.poor i{background:#ef596d}
.meeting-prejoin{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(330px,.65fr);gap:24px;align-items:center;padding:clamp(20px,4vw,54px)}.prejoin-preview{position:relative;min-height:min(64vh,650px);border-radius:26px;overflow:hidden;background:radial-gradient(circle at 30% 15%,#46313d,#171a22 70%);border:1px solid rgba(255,255,255,.1)}.prejoin-preview video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.prejoin-preview:not(.media-ready) video{display:none}.prejoin-preview.media-ready .meeting-avatar{display:none}.meeting-avatar{position:absolute;inset:0;display:grid;place-items:center;font-size:clamp(68px,10vw,130px);font-weight:950;background:radial-gradient(circle at 30% 15%,#b51f38,#251a22 68%)}.preview-label{position:absolute;left:18px;right:18px;bottom:18px;display:flex;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:14px;background:rgba(9,11,16,.72);backdrop-filter:blur(12px)}.preview-label span{color:#c5ccda}.prejoin-card{padding:clamp(20px,3vw,38px);border:1px solid rgba(255,255,255,.09);border-radius:26px;background:#181c25}.prejoin-card h1{margin:18px 0 8px;color:#fff;font-size:clamp(34px,4vw,54px)}.prejoin-card p{color:#b5bdcb}.device-check-list{display:grid;gap:8px;margin:24px 0}.device-check-list>div{display:flex;justify-content:space-between;gap:15px;padding:12px 14px;border-radius:13px;background:#202631;color:#c5ccda}.device-check-list strong{color:#fff}.prejoin-toggles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.meeting-join-button{width:100%;margin-top:16px;padding:15px;border:0;border-radius:15px;background:#b51f38;color:#fff;font-size:16px;font-weight:950;cursor:pointer}.prejoin-help{font-size:12px;line-height:1.55}
.meeting-live{position:relative;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) 320px}.meeting-main{position:relative;min-width:0;padding:15px}.meeting-stage{height:100%;min-height:430px;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));grid-auto-rows:minmax(220px,1fr);gap:12px}.meeting-tile{position:relative;min-height:220px;overflow:hidden;border:1px solid rgba(255,255,255,.08);border-radius:19px;background:#20242d}.meeting-tile video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.meeting-tile:not(.media-ready) video{display:none}.meeting-tile.media-ready .meeting-avatar{display:none}.meeting-tile footer{position:absolute;left:0;right:0;bottom:0;z-index:3;display:flex;justify-content:space-between;gap:10px;padding:30px 13px 12px;background:linear-gradient(transparent,rgba(0,0,0,.72))}.meeting-tile footer strong{color:#fff}.meeting-tile footer span{color:#d7dce5;font-size:12px}.meeting-empty{min-height:220px;display:grid;place-content:center;gap:7px;text-align:center;border:1px dashed rgba(255,255,255,.16);border-radius:19px;color:#8891a1}.meeting-empty strong{color:#d8dde7}.meeting-status-banner{position:absolute;top:25px;left:50%;z-index:5;transform:translateX(-50%);display:flex;align-items:center;gap:8px;padding:9px 13px;border-radius:999px;background:rgba(9,11,16,.78);backdrop-filter:blur(10px);font-size:12px;white-space:nowrap}
.meeting-live[hidden],.meeting-toolbar[hidden]{display:none!important}
.meeting-side-panel{min-width:0;padding:18px;border-left:1px solid rgba(255,255,255,.08);background:#151922}.meeting-side-head{display:flex;justify-content:space-between;gap:10px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.08)}.meeting-side-head div{display:grid;gap:2px}.meeting-side-head span{color:#949dac;font-size:12px}.meeting-side-head button{display:none}.meeting-participants{display:grid;gap:7px;margin-top:14px}.meeting-participant{display:grid;grid-template-columns:42px minmax(0,1fr);gap:10px;align-items:center;padding:10px;border-radius:14px;background:#1d222c}.meeting-participant>span{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:#b51f38;font-weight:950}.meeting-participant div{display:grid;min-width:0}.meeting-participant strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.meeting-participant small{color:#8993a4}.meeting-participant.offline{opacity:.45}
.meeting-toolbar{display:flex;justify-content:center;gap:8px;padding:11px max(11px,env(safe-area-inset-left)) calc(11px + env(safe-area-inset-bottom));border-top:1px solid rgba(255,255,255,.08);background:#151922}.meeting-control{min-width:72px;display:grid;place-items:center;gap:4px;padding:9px 10px;border:1px solid rgba(255,255,255,.08);border-radius:13px;background:#202631;color:#fff;text-decoration:none;cursor:pointer}.meeting-control b{font-size:10px;letter-spacing:.04em}.meeting-control span{font-size:11px;white-space:nowrap}.meeting-control:hover,.meeting-control.off{background:#313846}.meeting-control.off{color:#ff9aa8}.leave-control,.end-control{background:#6e1525}.end-control{background:#b51f38}
.class-card-grid{grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}.class-card{display:grid;align-content:start;gap:13px}.class-card.active{border-color:rgba(181,31,56,.5);box-shadow:0 18px 50px rgba(181,31,56,.12)}.class-card-top{display:flex;justify-content:space-between;gap:10px}.class-live-dot{color:#8e1830;font-size:12px;font-weight:900}.class-facts{display:flex;flex-wrap:wrap;gap:7px}.class-facts span{padding:7px 10px;border-radius:999px;background:rgba(181,31,56,.07);color:#755d67;font-size:12px;font-weight:800}.class-room-shell{display:grid;gap:20px}.class-room-hero{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;padding:clamp(24px,4vw,48px);border-radius:32px;background:linear-gradient(135deg,#741126,#b51f38);color:#fff;box-shadow:0 24px 65px rgba(142,24,48,.25)}.class-room-hero h2{margin:15px 0 8px;color:#fff;font-size:clamp(34px,5vw,58px)}.class-room-hero p{color:#f1cfd6}.class-facts-light span{background:rgba(255,255,255,.12);color:#fff}.class-room-actions{min-width:230px;display:grid;align-content:center;gap:10px}.light-btn{border-color:rgba(255,255,255,.35)!important;color:#fff!important}.class-room-grid{display:grid;grid-template-columns:minmax(280px,.7fr) minmax(0,1.3fr);gap:20px}.class-discussion-list{max-height:460px;overflow:auto}
@media(max-width:1000px){.meeting-live{grid-template-columns:1fr}.meeting-side-panel{position:fixed;top:0;right:0;bottom:0;z-index:100;width:min(86vw,360px);transform:translateX(105%);transition:.2s;border-left:1px solid rgba(255,255,255,.12);box-shadow:-20px 0 50px rgba(0,0,0,.35)}.meeting-side-panel.open{transform:translateX(0)}.meeting-side-head button{display:block}.class-room-grid{grid-template-columns:1fr}}
@media(max-width:760px){.meeting-page{padding:0}.meeting-shell{min-height:100dvh;border:0;border-radius:0}.meeting-topbar{padding:9px 11px}.meeting-brand .brand-mark{width:36px;height:36px;flex-basis:36px}.meeting-prejoin{grid-template-columns:1fr;align-content:start;padding:12px;gap:12px}.prejoin-preview{min-height:42dvh;border-radius:18px}.prejoin-card{padding:18px;border-radius:18px}.prejoin-card h1{font-size:30px!important}.device-check-list{margin:14px 0}.meeting-live{min-height:0}.meeting-main{padding:7px}.meeting-stage{min-height:calc(100dvh - 158px);grid-template-columns:1fr;grid-auto-rows:minmax(180px,1fr);gap:7px}.meeting-tile{min-height:180px;border-radius:14px}.meeting-toolbar{position:sticky;bottom:0;z-index:20;justify-content:flex-start;overflow-x:auto;padding:8px 8px calc(8px + env(safe-area-inset-bottom));scrollbar-width:none}.meeting-control{min-width:67px;padding:8px 7px}.meeting-control span{font-size:10px}.desktop-only{display:none}.meeting-top-meta #meetingTimer{display:none}.class-room-hero{grid-template-columns:1fr;padding:22px;border-radius:24px}.class-room-actions{min-width:0}.class-room-actions>*{width:100%}}
.mobile-browser-notice{margin-bottom:22px;padding:24px;border:2px solid rgba(67,209,123,.35);background:linear-gradient(135deg,rgba(67,209,123,.10),#fff)}.mobile-browser-notice h2{margin-top:0}.mobile-browser-notice .primary-btn,.mobile-browser-notice .outline-btn{margin:8px 8px 0 0}.setup-optional{opacity:.78}
.inapp-browser-warning{display:grid;gap:6px;margin-bottom:16px;padding:14px;border:1px solid rgba(242,184,75,.38);border-radius:15px;background:rgba(242,184,75,.10);color:#fff}.inapp-browser-warning span{color:#d5c7aa;font-size:12px}.inapp-browser-warning button{width:100%;margin-top:5px;padding:10px;border:1px solid rgba(255,255,255,.18);border-radius:11px;background:#292e38;color:#fff;font-weight:900}

/* V23 advanced meeting controls */
.meeting-top-button{padding:7px 10px;border:1px solid rgba(255,255,255,.1);border-radius:10px;background:#202631;color:#dce1e9;font-size:11px;font-weight:850;cursor:pointer}.meeting-background-note{position:fixed;top:10px;left:50%;z-index:200;transform:translateX(-50%);padding:10px 14px;border-radius:999px;background:#b51f38;color:#fff;font-size:12px;font-weight:900;box-shadow:0 12px 30px rgba(0,0,0,.35)}
.prejoin-preview video,.local-tile video{transform:scaleX(-1)}.prejoin-preview.rear-camera video,.local-tile.rear-camera video,.prejoin-preview.mirror-off video,.local-tile.mirror-off video{transform:none}.meeting-avatar{background-position:center;background-size:cover;background-repeat:no-repeat}.meeting-avatar[style]{color:transparent}
.voice-meeting .meeting-tile video,.voice-meeting .prejoin-preview video{display:none!important}.voice-meeting .meeting-avatar,.voice-meeting .prejoin-preview .meeting-avatar{display:grid!important}.voice-meeting .meeting-avatar{inset:50% auto auto 50%;width:min(46%,190px);aspect-ratio:1;height:auto;transform:translate(-50%,-50%);border-radius:50%;box-shadow:0 0 0 8px rgba(255,255,255,.06),0 20px 50px rgba(0,0,0,.35)}.voice-meeting .meeting-tile.is-speaking .meeting-avatar{box-shadow:0 0 0 5px #43d17b,0 0 0 12px rgba(67,209,123,.18),0 20px 50px rgba(0,0,0,.35)}
.meeting-tile-badges{position:absolute;top:11px;right:11px;z-index:6;display:flex;gap:6px}.meeting-tile-badges span{display:none;padding:6px 8px;border-radius:999px;color:#fff;font-size:9px;font-weight:950;letter-spacing:.04em;box-shadow:0 5px 15px rgba(0,0,0,.25)}.speaker-mic{position:relative;width:25px;height:25px;padding:0!important;background:#159957;font-size:0!important;place-items:center}.speaker-mic::before{content:"";width:7px;height:12px;border:2px solid #fff;border-radius:6px}.speaker-mic::after{content:"";position:absolute;width:11px;height:8px;margin-top:5px;border:2px solid #fff;border-top:0;border-radius:0 0 8px 8px}.hand-badge{background:#d28a16}.share-badge{background:#3177c9}.meeting-tile.is-speaking .speaker-mic{display:grid}.meeting-tile.hand-raised .hand-badge,.meeting-tile.screen-sharing .share-badge{display:inline-flex}.meeting-tile.is-speaking{border-color:#43d17b;box-shadow:inset 0 0 0 2px #43d17b}.meeting-tile.camera-off .meeting-avatar{display:grid!important}.meeting-tile.camera-off video{visibility:hidden}
.meeting-participant{grid-template-columns:42px minmax(0,1fr) auto}.participant-state{min-width:34px;padding:5px 7px;border-radius:999px;background:#2b323f;color:#9fa8b7;font-size:9px;font-style:normal;font-weight:950;text-align:center}.meeting-participant.is-speaking .participant-state{background:#159957;color:#fff}.meeting-participant.hand-raised .participant-state{background:#d28a16;color:#fff}.meeting-participant.mic-off .participant-state{color:#ff9aa8}.meeting-control.active{border-color:#43d17b;background:#225b3c;color:#fff}
.meeting-stage.speaker-layout{grid-template-columns:minmax(0,1fr) 180px;grid-template-rows:repeat(auto-fit,minmax(110px,1fr));overflow:auto}.meeting-stage.speaker-layout .meeting-tile{min-height:120px}.meeting-stage.speaker-layout .meeting-tile.is-focused{grid-column:1;grid-row:1 / span 8;min-height:430px}.meeting-stage.speaker-layout .meeting-empty{display:none}.meeting-tile{cursor:pointer}
.class-meeting-capabilities{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}.class-meeting-capabilities span{padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.14);color:#fff;font-size:11px;font-weight:900}
@media(max-width:760px){.meeting-top-button{display:none}.meeting-stage.speaker-layout{grid-template-columns:1fr;grid-template-rows:minmax(54dvh,1fr) 120px;grid-auto-flow:column;overflow-x:auto}.meeting-stage.speaker-layout .meeting-tile.is-focused{position:sticky;left:0;grid-column:auto;grid-row:auto;min-width:calc(100vw - 14px);min-height:54dvh}.meeting-stage.speaker-layout .meeting-tile:not(.is-focused){min-width:160px;min-height:115px}.meeting-background-note{width:calc(100% - 24px);text-align:center}.voice-meeting .meeting-avatar{width:min(42%,150px)}}
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:28px}.page-link{display:inline-flex;min-width:42px;height:42px;align-items:center;justify-content:center;padding:0 14px;border:1px solid #ddd;border-radius:10px;background:#fff;color:#3b2730;font-weight:700;text-decoration:none}.page-link:hover,.page-link.active{background:#b51f38;border-color:#b51f38;color:#fff}.page-gap{color:#8d7c83}.page-summary{width:100%;text-align:center;color:#76666c;font-size:.88rem}.remember-login{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;border:1px solid #eadde1;border-radius:12px;background:#fff8fa}.remember-login input{margin-top:4px}.remember-login span{display:grid;gap:2px}.remember-login small{color:#76666c}
@media(max-width:640px){.pagination{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px}.page-summary{width:auto;white-space:nowrap}.page-link{min-width:40px;height:40px;padding:0 12px}.toolbar .filter-cluster{width:100%;display:grid;grid-template-columns:1fr}.toolbar .search-field,.toolbar .compact-select{width:100%;min-width:0}}

/* V26 classroom collaboration and public operations */
.classroom-panel{position:fixed;top:0;right:0;bottom:0;z-index:110;width:min(92vw,430px);transform:translateX(105%);transition:.22s;overflow:hidden;box-shadow:-24px 0 60px rgba(0,0,0,.42)}.classroom-panel.open{transform:translateX(0)}.classroom-tools-scroll{height:calc(100dvh - 62px);overflow:auto;padding:14px 0 30px}.classroom-widget{display:grid;gap:10px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.08)}.classroom-widget h3{margin:0;color:#fff;font-size:15px}.classroom-live-state{display:grid;gap:7px;padding:11px;border-radius:13px;background:#1d222c;color:#cbd2de;font-size:12px}.classroom-live-state p{margin:0;color:#cbd2de;line-height:1.5}.classroom-mini-form{display:grid;gap:7px}.classroom-mini-form .field{width:100%;min-width:0;border-color:rgba(255,255,255,.12);background:#202631;color:#fff}.classroom-mini-form textarea{min-height:76px}.class-option{display:flex;justify-content:space-between;gap:10px;padding:9px 10px;border:1px solid rgba(255,255,255,.1);border-radius:10px;background:#272e3a;color:#fff;text-align:left;cursor:pointer}.class-option.selected{border-color:#43d17b;background:#225b3c}.classroom-timer{padding:7px 10px;border-radius:9px;background:#b51f38;color:#fff!important;font-weight:950}.meeting-tile.class-host::after{content:"主持人";position:absolute;left:11px;top:11px;z-index:6;padding:5px 8px;border-radius:999px;background:#b51f38;color:#fff;font-size:9px;font-weight:950}.admin-actions form{display:inline-flex;gap:7px;align-items:center;margin:2px}
html[lang=en] .meeting-tile.class-host::after{content:"Host"}
@media(max-width:760px){.classroom-panel{width:100vw}.classroom-widget{padding:14px}.meeting-shell:fullscreen .meeting-stage.speaker-layout .meeting-tile.is-focused{min-width:100vw;min-height:100dvh;border-radius:0}.classroom-timer{font-size:10px}.admin-actions form{display:grid;width:100%}}

/* V27 narrow-phone overflow hardening */
@media(max-width:480px){
  .container,.header-inner{width:calc(100% - 20px)!important;max-width:100%}
  .hero-shell,.page-hero-shell,.principal-hero-shell,.home-hero-shell,.auth-card,.form-card{width:100%!important;max-width:100%;min-width:0;overflow:hidden}
  .home-hero-shell>*,.auth-card>*,.auth-card form,.auth-card .field-group,.remember-login,.remember-login span{min-width:0;max-width:100%;width:100%}
  .eyebrow,.hero-subtitle,.home-motto,.hero p,.page-hero p,.remember-login small{max-width:100%;white-space:normal!important;overflow-wrap:anywhere;word-break:break-word}
  .hero-actions a,.auth-card .primary-btn,.auth-card .outline-btn{width:100%;min-width:0;white-space:normal!important;text-align:center}
  .home-emblem-card strong,.home-emblem-card span,.home-emblem-card small{max-width:100%;overflow-wrap:anywhere}
}

/* V30 global chat/call notices and collapsible admin */
.global-message-toast{position:fixed;right:20px;top:20px;z-index:500;width:min(360px,calc(100vw - 32px));display:grid;gap:3px;padding:15px 17px;border:1px solid rgba(255,255,255,.15);border-radius:18px;background:#202631;color:#fff;text-align:left;box-shadow:0 22px 70px rgba(0,0,0,.35);transform:translateY(-130%);opacity:0;transition:.22s;cursor:pointer}.global-message-toast.show{transform:none;opacity:1}.global-message-toast b{color:#ffb6c2;font-size:11px}.global-message-toast strong{font-size:14px}.global-message-toast span{overflow:hidden;color:#c7ced9;font-size:12px;text-overflow:ellipsis;white-space:nowrap}.incoming-call-modal{position:fixed;inset:0;z-index:510;display:grid;place-items:center;padding:18px;background:rgba(4,6,9,.62);backdrop-filter:blur(8px)}.incoming-call-card{width:min(390px,100%);display:grid;justify-items:center;gap:9px;padding:30px;border:1px solid rgba(255,255,255,.14);border-radius:28px;background:#171c25;color:#fff;text-align:center;box-shadow:0 30px 100px rgba(0,0,0,.48)}.incoming-call-icon{width:76px;height:76px;display:grid;place-items:center;border-radius:50%;background:#159957;color:#fff;font-size:11px;font-weight:950;box-shadow:0 0 0 12px rgba(21,153,87,.12)}.incoming-call-card h2{margin:5px 0 0;color:#fff}.incoming-call-card p,.incoming-call-card small{color:#bfc7d4}.incoming-call-card>div{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.incoming-call-card a{text-align:center}.admin-quick-nav{position:sticky;top:82px;z-index:20;width:min(1180px,calc(100% - 32px));margin:20px auto;display:flex;gap:8px;padding:10px;overflow-x:auto;border:1px solid var(--line);border-radius:17px;background:rgba(255,255,255,.94);box-shadow:var(--shadow-sm);backdrop-filter:blur(10px)}.admin-quick-nav button,.admin-collapse-button{flex:0 0 auto;padding:8px 11px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--red-deep);font-weight:850;cursor:pointer}.admin-collapse-button{margin-left:auto}.admin-collapsible.collapsed>:not(.section-heading){display:none!important}.admin-collapsible{scroll-margin-top:150px}.admin-collapsible .section-heading{align-items:center}
@media(max-width:640px){.global-message-toast{right:12px;top:12px;width:calc(100vw - 24px)}.admin-quick-nav{top:68px;width:calc(100% - 20px)}.admin-collapsible .section-heading{display:grid;grid-template-columns:1fr auto}.admin-collapse-button{margin-left:0}}
@media(max-width:760px){.tile-fullscreen-button{opacity:.82;transform:none}}

/* V31 stable 16:9 meeting views */
.meeting-stage{align-content:start;grid-template-columns:repeat(5,minmax(0,1fr));grid-auto-rows:auto;overflow:auto}.meeting-tile{min-height:0!important;aspect-ratio:16/9}.meeting-tile video{object-fit:contain!important;background:#05070a}.meeting-tile.video-page-hidden{display:none!important}.meeting-video-pagination{position:absolute;left:50%;bottom:22px;z-index:10;transform:translateX(-50%);display:flex;align-items:center;gap:8px;padding:6px;border-radius:999px;background:rgba(9,11,16,.82)}.meeting-video-pagination[hidden]{display:none}.meeting-video-pagination button{padding:7px 11px;border:1px solid rgba(255,255,255,.15);border-radius:999px;background:#252b36;color:#fff}.meeting-video-pagination span{min-width:48px;text-align:center}.meeting-stage.speaker-layout{grid-template-columns:minmax(0,1fr) 210px;grid-template-rows:none;align-content:start;overflow-y:auto}.meeting-stage.speaker-layout .meeting-tile.is-focused{position:sticky;top:0;grid-column:1;grid-row:1 / span 20;width:100%;aspect-ratio:16/9}.meeting-stage.speaker-layout .meeting-tile:not(.is-focused){grid-column:2;width:100%;aspect-ratio:16/9}
@media(max-width:1100px){.meeting-stage{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:760px){.meeting-stage{grid-template-columns:1fr 1fr;grid-auto-rows:auto;overflow-y:auto}.meeting-stage.speaker-layout{grid-template-columns:1fr 120px}.meeting-stage.speaker-layout .meeting-tile.is-focused{min-width:0;min-height:0}.meeting-stage.speaker-layout .meeting-tile:not(.is-focused){min-width:0;min-height:0}.meeting-video-pagination{bottom:12px}}

/* V32 chat media and member profile spaces */
.chat-send-pro{grid-template-columns:minmax(160px,1fr) auto auto auto!important}.chat-image-upload{display:grid;place-items:center;padding:9px 12px;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--red-deep);font-weight:850;cursor:pointer}.chat-image-upload input{display:none}.chat-sticker-picker{display:flex;gap:4px;max-width:230px;overflow-x:auto}.chat-sticker-picker button{flex:0 0 auto;padding:8px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}.chat-message-image{display:block;max-width:min(360px,100%);max-height:360px;border-radius:14px;object-fit:contain;background:#111}.chat-expiry-note{display:block;margin-top:5px;color:#89777e}.chat-sticker{display:inline-block;padding:8px;font-size:30px}.profile-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px}.profile-gallery figure{margin:0;overflow:hidden;border:1px solid var(--line);border-radius:16px;background:#fff}.profile-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover}.profile-gallery figcaption{padding:9px;color:#76666c}.profile-comments{display:grid;gap:10px}
@media(max-width:760px){.chat-send-pro{grid-template-columns:1fr!important}.chat-sticker-picker{max-width:100%}.chat-image-upload{width:100%}.profile-gallery{grid-template-columns:1fr 1fr}}

/* V31 navigation and stable pagination */
.site-header{box-shadow:0 8px 28px rgba(67,31,37,.06)}.main-nav{padding:5px;border:1px solid rgba(181,31,56,.08);border-radius:999px;background:rgba(255,255,255,.66)}.nav-link{position:relative;transition:.18s ease}.nav-link.active{background:linear-gradient(135deg,var(--red-deep),var(--red));color:#fff;box-shadow:0 8px 20px rgba(181,31,56,.24)}.nav-link.active::after{content:"";position:absolute;left:50%;bottom:3px;width:16px;height:2px;transform:translateX(-50%);border-radius:9px;background:rgba(255,255,255,.75)}.pagination-pro{scroll-margin-top:120px}
@media(max-width:1200px){.main-nav{border-radius:22px;padding:8px}.nav-link{background:rgba(255,255,255,.8);border:1px solid rgba(181,31,56,.08)}}

/* V32 classroom interaction and calmer chat workspace */
.classroom-panel{display:flex;flex-direction:column;padding:0;background:linear-gradient(180deg,#171c25,#10141b)}.classroom-panel .meeting-side-head{flex:0 0 auto;padding:18px;background:linear-gradient(135deg,#7b1328,#b51f38)}.classroom-panel .meeting-side-head strong{font-size:18px}.classroom-panel .meeting-side-head span{color:rgba(255,255,255,.76)}.classroom-tools-scroll{flex:1;min-height:0;height:auto!important;overflow-y:auto!important;overscroll-behavior:contain;touch-action:pan-y;-webkit-overflow-scrolling:touch;padding:14px}.classroom-widget{margin-bottom:13px;padding:16px;border:1px solid rgba(255,255,255,.1);border-radius:18px;background:linear-gradient(145deg,#202632,#181d26);box-shadow:0 12px 30px rgba(0,0,0,.16)}.classroom-widget h3{font-size:16px}.classroom-widget-hint{margin:0;color:#aeb7c5!important;font-size:12px;line-height:1.55}.classroom-mini-form label{display:grid;gap:5px;color:#dce2eb}.classroom-mini-form .field,.classroom-panel input,.classroom-panel textarea,.classroom-panel select{border-color:rgba(255,255,255,.22)!important;background:#fff!important;color:#171a20!important;-webkit-text-fill-color:#171a20!important;caret-color:#b51f38}.classroom-panel input::placeholder,.classroom-panel textarea::placeholder{color:#69717d!important;opacity:1}.breakout-widget{border-color:rgba(242,184,75,.38);background:radial-gradient(circle at top right,rgba(242,184,75,.16),transparent 45%),#202632}.breakout-live-state{border:1px solid rgba(242,184,75,.24)}.breakout-countdown{display:block;padding:10px;border-radius:12px;background:#b51f38;color:#fff;font-size:24px;text-align:center}.breakout-call-link{display:block;padding:12px;border-radius:12px;background:#159957;color:#fff!important;font-weight:950;text-align:center}.breakout-host-row{display:grid!important;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:8px;padding:8px!important;border-radius:10px;background:#272e3a}.breakout-host-row a{color:#7bdca5;font-weight:900}.class-host-console{padding:17px;border:1px solid rgba(181,31,56,.16);border-radius:20px;background:linear-gradient(135deg,rgba(181,31,56,.08),#fff)}.class-host-form{display:grid;grid-template-columns:minmax(200px,1fr) auto auto;gap:8px}
.polished-chat-layout{grid-template-columns:370px minmax(0,1fr);gap:26px}.chat-sidebar,.chat-main{border:1px solid rgba(181,31,56,.1)!important;background:rgba(255,255,255,.96)!important;box-shadow:0 24px 70px rgba(67,31,37,.10)!important}.chat-main{padding:30px!important}.chat-title-row{padding-bottom:18px;border-bottom:1px solid var(--line)}.chat-mute-panel{display:grid;gap:10px;margin:15px 0;padding:14px;border:1px solid rgba(181,31,56,.12);border-radius:18px;background:linear-gradient(135deg,rgba(181,31,56,.07),rgba(118,81,173,.06))}.chat-mute-panel h3,.chat-mute-panel p{margin:0}.chat-mute-panel p{font-size:12px;line-height:1.5}.chat-mute-list{max-height:155px;overflow-y:auto;display:grid;gap:4px;padding:5px}.chat-mute-list label{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:7px;padding:7px 8px;border-radius:10px;background:rgba(255,255,255,.8);font-size:12px}.chat-mute-list b{padding:3px 6px;border-radius:999px;background:#6d6070;color:#fff;font-size:9px}.chat-mute-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px}.chat-mute-actions button{padding:8px}.message-list{padding:15px;background:linear-gradient(180deg,#f8f1ef,#fff);border-radius:24px}.message-bubble{max-width:min(82%,760px);border-radius:8px 20px 20px 20px}.chat-input-row{padding:10px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 12px 35px rgba(67,31,37,.08)}
@media(max-width:1000px){.class-host-form{grid-template-columns:1fr}.polished-chat-layout{grid-template-columns:1fr}.classroom-panel{height:100dvh;max-height:100dvh}.classroom-tools-scroll{padding-bottom:calc(30px + env(safe-area-inset-bottom))}}
@media(max-width:760px){.classroom-panel{inset:0;width:100vw!important}.classroom-panel .meeting-side-head{padding:14px}.classroom-tools-scroll{height:0!important;flex:1!important;overflow-y:scroll!important}.classroom-widget{padding:14px;margin-bottom:10px}.chat-main{padding:15px!important}.chat-mute-list{max-height:190px}.message-bubble{max-width:94%}}
.global-message-toast{touch-action:pan-x;user-select:none}.global-message-toast.hiding{transform:translateY(-140%)!important;opacity:0!important}.global-message-toast small{color:#929cab;font-size:10px}.global-notice-close{position:absolute;top:8px;right:9px;width:27px;height:27px;border:0;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:18px;cursor:pointer}.global-notice-tip{position:fixed;right:20px;bottom:20px;z-index:490;width:min(390px,calc(100vw - 32px));display:grid;grid-template-columns:1fr auto;gap:4px 12px;padding:15px 16px;border:1px solid var(--line);border-radius:18px;background:#fff;color:var(--ink);box-shadow:0 20px 65px rgba(0,0,0,.18)}.global-notice-tip strong,.global-notice-tip span{grid-column:1}.global-notice-tip span{color:var(--muted);font-size:12px;line-height:1.55}.global-notice-tip button{grid-column:2;grid-row:1/3;border:0;background:transparent;color:var(--muted);font-size:20px;cursor:pointer}
@media(max-width:640px){.global-notice-tip{right:12px;bottom:12px;width:calc(100vw - 24px)}}
.timer-inputs{display:grid;grid-template-columns:1fr 1fr;gap:8px}.timer-inputs label{font-size:11px}

/* V35 meeting overview, durable paging, and long-label controls */
.meeting-overview-panel{display:flex;flex-direction:column;max-height:100%;overflow:hidden}.meeting-overview-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:12px 0}.meeting-overview-tabs button{padding:9px;border:1px solid rgba(255,255,255,.1);border-radius:10px;background:#202631;color:#aeb6c8;font-weight:850;cursor:pointer}.meeting-overview-tabs button.active{background:#b51f38;color:#fff}.meeting-panel-view{display:none;min-height:0;flex:1}.meeting-panel-view.active{display:flex;flex-direction:column}.meeting-participants{min-height:0;max-height:calc(100dvh - 185px);overflow-y:auto;overscroll-behavior:contain;padding-right:3px}.meeting-comment-list{min-height:0;flex:1;display:grid;align-content:start;gap:8px;overflow-y:auto;overscroll-behavior:contain;padding:5px 3px 12px}.meeting-comment{padding:10px;border-radius:12px;background:#1d222c}.meeting-comment strong,.meeting-comment small{display:block}.meeting-comment strong{font-size:12px;color:#fff}.meeting-comment p{margin:5px 0;color:#cbd2de;font-size:12px;line-height:1.45}.meeting-comment small,.meeting-comment-empty{color:#8993a4;font-size:10px}.meeting-comment-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px;padding-top:10px;border-top:1px solid rgba(255,255,255,.08)}.meeting-comment-form textarea{min-width:0;resize:none;padding:9px;border:1px solid rgba(255,255,255,.14);border-radius:10px;background:#fff;color:#171a20}.meeting-comment-form button{padding:8px 11px;border:0;border-radius:10px;background:#b51f38;color:#fff;font-weight:900}.meeting-tile.mic-off .speaker-mic{display:none!important}.meeting-toolbar{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin}.meeting-control{flex:0 0 auto}.meeting-video-pagination{display:flex!important}.meeting-video-pagination[hidden]{display:none!important}
@media(max-width:1000px){.meeting-overview-panel{max-height:100dvh}.meeting-participants{max-height:none;flex:1}.meeting-comment-form{padding-bottom:env(safe-area-inset-bottom)}}

/* V36 ordered cards, account security, and WeChat-style chat composer */
.card-order-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.card-order-list{display:grid;gap:8px;max-height:520px;overflow-y:auto;padding:4px}.card-order-list label{display:grid;grid-template-columns:minmax(0,1fr) 94px;gap:12px;align-items:center;padding:11px;border:1px solid var(--line);border-radius:14px;background:#fff}.card-order-list span,.profile-locked-fields span{display:grid;gap:3px;min-width:0}.card-order-list small,.profile-locked-fields small{color:var(--muted);font-size:11px}.card-order-list input{text-align:center}.profile-locked-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.profile-locked-fields span{padding:13px;border:1px solid var(--line);border-radius:14px;background:var(--surface-soft)}.profile-locked-fields strong{overflow-wrap:anywhere}
.chat-send-pro{display:grid!important;grid-template-columns:minmax(180px,1fr) auto auto!important;gap:8px!important}.chat-pending-preview{grid-column:1/-1;display:grid;grid-template-columns:64px minmax(0,1fr) 34px;align-items:center;gap:10px;padding:9px;border:1px solid rgba(181,31,56,.18);border-radius:16px;background:#fff8fa}.chat-pending-preview[hidden]{display:none!important}.chat-pending-preview>div:nth-child(2){display:grid;gap:3px;min-width:0}.chat-pending-preview strong,.chat-pending-preview small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-pending-preview small{color:var(--muted)}.chat-pending-preview>button{width:30px;height:30px;border:0;border-radius:50%;background:#efe4e7;color:var(--red-deep);font-size:20px;cursor:pointer}.chat-pending-media{width:58px;height:58px;display:grid;place-items:center;overflow:hidden;border-radius:11px;background:#171a20}.chat-pending-media img{width:100%;height:100%;object-fit:cover}.chat-pending-sticker{font-size:29px}.chat-pending-voice-icon{color:#fff;font-size:11px;font-weight:950}.chat-pending-audio{width:min(290px,100%);height:32px}.chat-compose-tools{display:flex;gap:6px}.chat-compose-tools>*{flex:0 0 auto}.chat-voice-record{display:flex;align-items:center;gap:6px;padding:9px 12px;border:1px solid var(--line);border-radius:11px;background:#fff;color:var(--red-deep);font-weight:850;cursor:pointer;touch-action:none}.chat-voice-record b{font-size:9px}.chat-voice-record.recording{background:#b51f38;color:#fff;box-shadow:0 0 0 5px rgba(181,31,56,.12)}.chat-sticker-picker{grid-column:1/-1;max-width:100%!important;padding:5px;border-radius:12px;background:rgba(181,31,56,.04)}.chat-sticker-picker button.selected{border-color:var(--red);background:rgba(181,31,56,.12)}.chat-voice-message{display:grid;gap:7px;min-width:min(290px,70vw)}.chat-voice-message span{font-size:12px;font-weight:850}.chat-voice-message audio{width:100%;height:36px}
@media(max-width:760px){.card-order-columns,.profile-locked-fields{grid-template-columns:1fr}.chat-send-pro{grid-template-columns:1fr auto!important}.chat-send-pro>.field{grid-column:1/-1}.chat-compose-tools{grid-column:1}.chat-send-pro>button[type=submit]{grid-column:2}.chat-sticker-picker{grid-column:1/-1}.chat-pending-preview{grid-column:1/-1}.chat-image-upload,.chat-voice-record{width:auto!important}.chat-voice-record span{font-size:11px}}

/* V37 reliable drafts, realtime deletion, and iPad presentation sharing */
.chat-media-caption{margin:9px 0 0;padding-top:8px;border-top:1px solid rgba(181,31,56,.12);white-space:pre-wrap}.inline-form-feedback{padding:12px 14px;border-radius:13px;font-weight:850}.inline-form-feedback.danger{background:#fff0f2;color:#9d1730;border:1px solid #efbdc6}.inline-form-feedback.success{background:#edf9f2;color:#176b3b;border:1px solid #b8e4ca}.realtime-deleted-banner{position:fixed;left:50%;top:20px;z-index:1000;transform:translateX(-50%);padding:13px 18px;border-radius:14px;background:#202631;color:#fff;box-shadow:0 18px 55px rgba(0,0,0,.3)}
.meeting-presentation-tile{position:absolute;inset:15px;z-index:12;display:grid;grid-template-rows:minmax(0,1fr) auto auto;overflow:hidden;border:1px solid rgba(255,255,255,.16);border-radius:19px;background:#05070a}.meeting-presentation-tile[hidden]{display:none}.presentation-surface{min-height:0;display:grid;place-items:center;overflow:auto}.presentation-surface canvas,.presentation-surface img{display:block;max-width:100%;max-height:100%;object-fit:contain}.meeting-presentation-tile footer{display:flex;justify-content:space-between;gap:10px;padding:9px 13px;background:#151922;color:#fff}.presentation-controls{display:flex;justify-content:center;align-items:center;gap:8px;padding:8px;background:#202631}.presentation-controls button{padding:7px 11px;border:1px solid rgba(255,255,255,.16);border-radius:9px;background:#2c3442;color:#fff}.presentation-dialog{width:min(540px,calc(100% - 28px));padding:0;border:0;border-radius:22px;background:#fff;color:#21191d;box-shadow:0 30px 100px rgba(0,0,0,.45)}.presentation-dialog::backdrop{background:rgba(4,6,9,.65);backdrop-filter:blur(6px)}.presentation-dialog form{display:grid;gap:15px;padding:24px}.presentation-dialog form>div{display:flex;gap:9px;justify-content:flex-end}
@media(max-width:760px){.meeting-presentation-tile{inset:8px}.presentation-controls{overflow-x:auto;justify-content:flex-start}.presentation-controls>*{flex:0 0 auto}.presentation-dialog form>div{display:grid}.presentation-dialog form>div>*{width:100%}}

/* V39 presentation fullscreen and live annotations */
.presentation-surface{position:relative}.presentation-annotation-canvas{position:absolute;inset:0;z-index:4;width:100%;height:100%;max-width:none!important;max-height:none!important;pointer-events:none;touch-action:none}.presentation-annotation-canvas.can-annotate{pointer-events:auto;cursor:crosshair}.presentation-controls button.active{background:#f04438;border-color:#ff7b72;color:#fff}.meeting-presentation-tile:fullscreen{inset:0;width:100vw;height:100dvh;border:0;border-radius:0}.meeting-presentation-tile:fullscreen .presentation-surface{background:#05070a}.meeting-presentation-tile:fullscreen .presentation-controls{padding-bottom:max(8px,env(safe-area-inset-bottom))}

/* V40 presentation reliability, upload progress, and annotation clarity */
.presentation-surface{background:#f7f7f4}.presentation-surface canvas:not(.presentation-annotation-canvas),.presentation-surface img,.presentation-surface iframe{background:#fff;box-shadow:0 12px 38px rgba(0,0,0,.22)}.presentation-surface iframe{display:block;width:100%;height:100%;border:0}.presentation-status{position:absolute;left:50%;top:50%;z-index:6;transform:translate(-50%,-50%);max-width:min(420px,calc(100% - 32px));padding:13px 16px;border-radius:14px;background:rgba(20,24,31,.88);color:#fff;font-weight:850;text-align:center;box-shadow:0 18px 55px rgba(0,0,0,.28);pointer-events:none}.presentation-status.busy:before{content:"";display:inline-block;width:13px;height:13px;margin-right:9px;border-radius:50%;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;vertical-align:-2px;animation:presentationSpin .8s linear infinite}.presentation-annotation-canvas.can-annotate{outline:3px solid rgba(240,68,56,.82);outline-offset:-3px;background:rgba(240,68,56,.03)}.presentation-upload-state{display:grid;grid-template-columns:1fr auto;gap:7px 10px;align-items:center;padding:12px 13px;border-radius:14px;background:#fff7f0;border:1px solid rgba(181,31,56,.18)}.presentation-upload-state[hidden]{display:none}.presentation-upload-state strong{grid-column:1/-1;color:#8e1830}.presentation-upload-state progress{width:100%;height:12px;accent-color:#b51f38}.presentation-upload-state span{font-weight:900;color:#8e1830}.presentation-dialog button:disabled{opacity:.55;cursor:progress}@keyframes presentationSpin{to{transform:rotate(360deg)}}
.resource-upload-state{display:grid;grid-template-columns:1fr auto;gap:7px 10px;align-items:center;padding:13px 14px;border-radius:16px;background:#fff7f0;border:1px solid rgba(181,31,56,.18)}.resource-upload-state[hidden]{display:none}.resource-upload-state strong{grid-column:1/-1;color:#8e1830}.resource-upload-state progress{width:100%;height:13px;accent-color:#b51f38}.resource-upload-state span{font-weight:900;color:#8e1830}

/* V38 about refresh and teacher tools */
.about-hero{padding:72px 0 38px;background:linear-gradient(135deg,#fff8f7 0%,#eef7f4 52%,#fffaf0 100%);overflow:hidden}.about-hero-grid{display:grid;grid-template-columns:minmax(0,1.2fr) 360px;gap:34px;align-items:center}.about-lead{font-size:20px;max-width:760px;color:#524348}.about-hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.about-orbit-card{min-height:360px;border:1px solid var(--line);background:rgba(255,255,255,.8);box-shadow:var(--shadow-md);border-radius:30px;padding:34px;display:grid;place-items:center;text-align:center;position:relative;overflow:hidden}.about-orbit-card:before,.about-orbit-card:after{content:"";position:absolute;inset:24px;border:1px solid rgba(20,116,70,.18);border-radius:50%;animation:aboutSpin 18s linear infinite}.about-orbit-card:after{inset:54px;border-color:rgba(181,31,56,.16);animation-duration:26s;animation-direction:reverse}.about-orbit-card img{width:150px;height:150px;object-fit:contain;z-index:1}.about-orbit-card strong,.about-orbit-card span{z-index:1}.about-orbit-card strong{font-size:24px;color:var(--red-deep)}.about-orbit-card span{color:#446b61;font-weight:800;font-size:13px}.about-fact-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.about-fact-strip article{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow-sm)}.about-fact-strip strong{display:block;font-size:34px;color:#147446}.about-fact-strip span{color:var(--muted);font-weight:800}.about-story-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:22px}.about-feature-card{border:1px solid var(--line);border-radius:30px;background:#fff;box-shadow:var(--shadow-sm);padding:28px;min-height:260px;transition:transform .22s ease,box-shadow .22s ease}.about-feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.about-feature-card.wide{background:linear-gradient(135deg,rgba(181,31,56,.10),rgba(20,116,70,.08)),#fff}.about-values-band{padding:48px 0;background:#263836;color:#fff}.about-values-band h2,.about-values-band h3{color:#fff}.about-values-band p{color:rgba(255,255,255,.74)}.about-value-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.about-value-grid article{border:1px solid rgba(255,255,255,.14);border-radius:24px;padding:24px;background:rgba(255,255,255,.07)}.about-value-grid b{color:#ffd36d;font-size:28px}.about-support-section{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px;align-items:center;border:1px solid var(--line);background:#fff;border-radius:30px;padding:30px;box-shadow:var(--shadow-sm)}.support-qr-card{display:grid;place-items:center;gap:12px;text-align:center}.support-qr-card img,.qr-placeholder{width:210px;height:210px;border-radius:24px;border:1px solid var(--line);background:#f4f7f1;object-fit:cover}.qr-placeholder{display:grid;place-items:center;color:#147446;font-weight:900}.about-source-note{text-align:center}.about-links{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.teacher-tools-hero .page-hero-shell{background:linear-gradient(135deg,rgba(20,116,70,.12),rgba(181,31,56,.10)),#fff}.teacher-tools-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:22px}.ai-textarea{min-height:240px}.ai-result-panel{display:grid;grid-template-columns:170px minmax(0,1fr);gap:24px;align-items:center;border:1px solid var(--line);border-radius:30px;background:#fff;padding:26px;box-shadow:var(--shadow-sm)}.ai-score-ring{width:150px;height:150px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(#147446 calc(var(--score) * 1%),#eadfdb 0);position:relative}.ai-score-ring:before{content:"";position:absolute;inset:13px;border-radius:50%;background:#fff}.ai-score-ring strong,.ai-score-ring span{z-index:1}.ai-score-ring strong{font-size:42px;color:var(--red-deep)}.ai-score-ring span{font-weight:900;color:#147446}.evidence-list{margin:0;padding-left:20px;color:#4f4145;line-height:1.9}@keyframes aboutSpin{to{transform:rotate(360deg)}}@media(max-width:980px){.about-hero-grid,.about-story-grid,.about-fact-strip,.about-value-grid,.about-support-section,.teacher-tools-layout,.ai-result-panel{grid-template-columns:1fr}.about-orbit-card{min-height:280px}.support-qr-card{justify-items:start}}

.teacher-tools-coming-soon{padding:34px;border:1px solid var(--line);border-radius:30px;background:linear-gradient(135deg,rgba(20,116,70,.10),rgba(181,31,56,.08)),#fff;box-shadow:var(--shadow-md)}.teacher-tools-coming-soon h2{font-size:clamp(34px,5vw,58px);margin:14px 0 8px}.coming-soon-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:26px}.coming-soon-grid article{padding:22px;border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.82)}.coming-soon-grid strong{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:50%;background:#147446;color:#fff;margin-bottom:14px}@media(max-width:900px){.coming-soon-grid{grid-template-columns:1fr}}

/* V41 refined voluntary support panel */
.about-support-section{grid-template-columns:minmax(0,1fr) minmax(300px,380px);gap:34px;align-items:stretch;border:1px solid rgba(56,67,64,.12);background:linear-gradient(135deg,rgba(255,255,255,.94),rgba(248,250,247,.9)),radial-gradient(circle at top right,rgba(20,116,70,.12),transparent 34%),#fff;border-radius:28px;padding:34px;box-shadow:0 22px 70px rgba(38,56,54,.10)}.about-support-copy{display:flex;min-height:260px;flex-direction:column;justify-content:center}.about-support-copy h2{max-width:560px;margin:12px 0 10px;color:#233835}.about-support-copy p{max-width:680px;color:#5b625f;font-size:16px;line-height:1.85}.support-principles{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.support-principles span{border:1px solid rgba(20,116,70,.18);border-radius:999px;background:rgba(255,255,255,.72);color:#244843;font-weight:900;font-size:13px;padding:8px 12px}.support-qr-card{justify-items:stretch;place-items:stretch;gap:14px;text-align:left;border:1px solid rgba(35,56,53,.12);border-radius:24px;background:#233835;color:#fff;padding:22px;box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}.support-qr-intro{display:grid;grid-template-columns:52px minmax(0,1fr);column-gap:14px;row-gap:4px;align-items:center}.support-mark{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:#fff;color:#b51f38;font-weight:1000;font-size:22px;box-shadow:0 10px 24px rgba(0,0,0,.18)}.support-qr-intro strong{display:block;color:#fff;font-size:19px}.support-qr-intro p{grid-column:2;margin:0;color:rgba(255,255,255,.72);line-height:1.65}.support-qr-toggle{width:100%;justify-content:center;margin-top:8px}.support-qr-panel{display:grid;grid-template-columns:132px minmax(0,1fr);gap:16px;align-items:center;margin-top:4px;border-radius:18px;background:#fff;color:#233835;padding:14px}.support-qr-panel[hidden]{display:none}.support-qr-panel .support-qr-image{width:132px;height:132px;border-radius:14px;border:1px solid rgba(35,56,53,.12);background:#fff;object-fit:cover}.support-qr-panel strong{display:block;color:#233835;font-size:17px}.support-qr-panel p{margin:6px 0 0;color:#66716e;line-height:1.6}
@media(max-width:980px){.about-support-section{grid-template-columns:1fr;padding:24px}.about-support-copy{min-height:auto}}
@media(max-width:540px){.support-qr-intro,.support-qr-panel{grid-template-columns:1fr}.support-qr-intro p{grid-column:auto}.support-qr-panel .support-qr-image{width:min(100%,220px);height:auto;aspect-ratio:1}}

/* V42 crest-led support card polish */
.support-qr-card{position:relative;overflow:hidden;background:linear-gradient(145deg,#203936 0%,#162825 100%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 18px 45px rgba(30,50,47,.18)}.support-qr-card:before{content:"";position:absolute;right:-48px;top:-54px;width:170px;height:170px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.14),rgba(255,255,255,0) 64%);pointer-events:none}.support-qr-card:after{content:"";position:absolute;inset:auto 18px 18px auto;width:92px;height:92px;border:1px solid rgba(255,255,255,.10);border-radius:50%;opacity:.75;pointer-events:none}.support-qr-intro,.support-qr-toggle,.support-qr-panel{position:relative;z-index:1}.support-mark{width:62px;height:62px;padding:7px;background:linear-gradient(180deg,#fff,#f8eef0);border:1px solid rgba(255,255,255,.55);box-shadow:0 14px 30px rgba(0,0,0,.24)}.support-mark img{display:block;width:100%;height:100%;object-fit:contain;border:0;border-radius:50%;background:transparent}.support-qr-intro{grid-template-columns:62px minmax(0,1fr);column-gap:16px}.support-qr-intro strong{font-size:21px;letter-spacing:0}.support-qr-intro p{font-size:13px;color:rgba(255,255,255,.78)}.support-qr-toggle.primary-btn{border:1px solid rgba(255,255,255,.16);background:linear-gradient(135deg,#c91f44,#b51f38);box-shadow:0 14px 32px rgba(181,31,56,.28)}

/* V43 support card without crest */
.support-qr-intro{display:block}.support-qr-intro strong{font-size:22px}.support-qr-intro p{margin-top:8px}.support-mark{display:none}