/* CancerDAO premium UI refresh
   Phase 1: visual system only. Keep existing DOM, JS, and i18n intact. */

:root {
  --lav: #e7d1ff;
  --lav-soft: #f7f1ff;
  --lav-deep: #7a4ee8;
  --lav-deeper: #5f35c8;
  --ink: #14121a;
  --body: #4d4957;
  --dim: #8a8594;
  --line: #e6e1ec;
  --white: #ffffff;
  --bg-page: #fbfafc;
  --surface: #ffffff;
  --surface-2: #f6f4f8;
  --clinical-blue: #315070;
  --clinical-green: #1f7a5a;
  --clinical-amber: #9a6420;
  --shadow-sm: 0 1px 2px rgba(20, 18, 26, .04);
  --shadow-md: 0 10px 30px rgba(20, 18, 26, .07);
  --shadow-lg: 0 22px 60px rgba(20, 18, 26, .1);
  --shadow-accent: 0 10px 26px rgba(122, 78, 232, .2);
}

html {
  text-size-adjust: 100%;
}

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--body);
  background:
    linear-gradient(180deg, #fff 0%, #fbfafc 48%, #f7f3fb 100%);
  letter-spacing: 0;
}

::selection {
  background: var(--lav);
  color: var(--ink);
}

a {
  text-underline-offset: 3px;
}

.btn,
.newchat,
.sv-act-btn,
.icon-btn,
.send,
.auth-go,
.tool-use-btn,
.tr-btn,
.rf-btn,
.dlg-foot button,
.install-guide-close {
  border-radius: 8px !important;
  font-weight: 680 !important;
  letter-spacing: 0 !important;
}

.btn,
.auth-go,
.tool-use-btn,
.send,
.tr-btn.primary,
.rf-btn.primary,
.dlg-ok,
.install-guide-close {
  background: var(--lav-deep) !important;
  color: #fff !important;
  box-shadow: none !important;
}

.btn:hover,
.auth-go:hover,
.tool-use-btn:hover,
.send:hover,
.tr-btn.primary:hover,
.rf-btn.primary:hover,
.dlg-ok:hover,
.install-guide-close:hover {
  background: var(--lav-deeper) !important;
  transform: none !important;
}

.btn-ghost,
.tr-btn.ghost,
.tr-btn.outline,
.dlg-cancel {
  background: #fff !important;
  border: 1px solid var(--line) !important;
  color: var(--ink) !important;
}

.btn-ghost:hover,
.tr-btn.ghost:hover,
.tr-btn.outline:hover,
.dlg-cancel:hover {
  background: var(--surface-2) !important;
  border-color: #cfc7dd !important;
  color: var(--lav-deeper) !important;
}

.card,
.tier,
.story-card,
.safety,
.tool-card,
.app-run-card,
.trial-card,
.auth-card,
.acct-card,
.dlg,
.install-guide,
.composer,
.file,
.arch-card,
.arch-row,
.think,
.preview-panel,
.drawer,
.wechat-qr-modal,
.intro-chip,
.intro-upload,
.rg-cond,
.rf-banner,
.rf-card,
.rc-panel,
.rc-card,
.dz-panel,
.dz-card,
.ss-panel {
  border-radius: 8px !important;
  box-shadow: none !important;
}

.card,
.tier,
.story-card,
.tool-card,
.auth-card,
.acct-card,
.trial-card,
.app-run-card,
.dlg,
.composer {
  border: 1px solid var(--line) !important;
}

.card:hover,
.tier:hover,
.tool-card:hover,
.file.previewable:hover,
.answer-image.previewable:hover {
  transform: none !important;
  box-shadow: var(--shadow-sm) !important;
}

/* Landing */
body:has(.hero) {
  background: #fbfafc;
}

body:has(.hero) nav {
  background: rgba(255, 255, 255, .86);
  border-bottom: 1px solid rgba(230, 225, 236, .86);
  box-shadow: 0 1px 0 rgba(20, 18, 26, .02);
}

body:has(.hero) .nav-in {
  padding-top: 16px;
  padding-bottom: 16px;
}

body:has(.hero) .brand img {
  filter: saturate(.92) contrast(1.02);
}

body:has(.hero) .nav-links {
  gap: 22px;
}

body:has(.hero) .nav-links a {
  color: #5a5563;
  font-size: 13px;
  font-weight: 620;
}

body:has(.hero) .nav-links a.btn-primary {
  color: #fff !important;
}

body:has(.hero) .nav-links .btn {
  padding: 9px 18px;
}

.hero {
  text-align: left !important;
  padding: clamp(72px, 9vw, 118px) 0 clamp(64px, 7vw, 96px) !important;
  background:
    linear-gradient(110deg, rgba(255, 255, 255, .98) 0%, rgba(255, 255, 255, .94) 48%, rgba(247, 241, 255, .62) 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--line);
}

.hero .wrap {
  max-width: 1120px;
}

.dots {
  opacity: .12 !important;
  background-image:
    linear-gradient(90deg, rgba(20, 18, 26, .08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(20, 18, 26, .08) 1px, transparent 1px) !important;
  background-size: 52px 52px !important;
  mask-image: linear-gradient(90deg, transparent 0%, #000 52%, transparent 100%) !important;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 52%, transparent 100%) !important;
}

.eyebrow,
.sec-label,
.card .num,
.tier .tag,
.timeline .tl .date {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
  letter-spacing: .08em !important;
  font-weight: 720 !important;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--lav-deeper) !important;
  margin-bottom: 22px !important;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--lav-deep);
}

body:has(.hero) h1 {
  max-width: 820px;
  font-size: clamp(46px, 6.2vw, 80px) !important;
  line-height: .98 !important;
  font-weight: 760 !important;
  letter-spacing: 0 !important;
  color: var(--ink) !important;
}

h1 .accent,
h2 .accent {
  color: var(--lav-deeper) !important;
}

.sub {
  margin-left: 0 !important;
  margin-right: 0 !important;
  max-width: 670px !important;
  color: #5d5866 !important;
  font-size: clamp(17px, 1.6vw, 20px) !important;
  line-height: 1.72 !important;
}

.hero-cta {
  justify-content: flex-start !important;
  margin-top: 34px !important;
}

body:has(.hero) section {
  padding: clamp(72px, 8vw, 104px) 0 !important;
}

body:has(.hero) section:nth-of-type(even) {
  background: #fff;
}

.story {
  background: #fff !important;
}

.sec-label {
  color: var(--lav-deeper) !important;
  text-align: left !important;
  font-size: 11px !important;
}

body:has(.hero) h2 {
  max-width: 760px;
  margin-left: 0 !important;
  margin-right: 0 !important;
  text-align: left !important;
  font-size: clamp(34px, 4.6vw, 58px) !important;
  line-height: 1.04 !important;
  font-weight: 740 !important;
  letter-spacing: 0 !important;
}

.sec-sub {
  text-align: left !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
  max-width: 680px !important;
  color: #625d6a !important;
}

.cards,
.feat,
.price {
  gap: 16px !important;
  margin-top: 42px !important;
}

.card {
  background: #fff !important;
  border-top: 1px solid var(--line) !important;
  padding: 28px !important;
}

.card::before {
  content: "";
  display: block;
  width: 34px;
  height: 2px;
  background: var(--lav);
  margin-bottom: 18px;
}

.card .num {
  color: var(--lav-deeper) !important;
  font-size: 11px !important;
  text-transform: uppercase;
}

.card h3,
.tier .tag,
.story-card .name,
.safety h3 {
  color: var(--ink) !important;
}

.card h3 {
  font-size: 19px !important;
  font-weight: 700 !important;
}

.card p {
  color: #625d6a !important;
}

.feat .card {
  border-left: 1px solid var(--line) !important;
}

#engine {
  background: #fbfafc !important;
}

.stat .big,
.tier .amt {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
  color: var(--ink) !important;
  font-weight: 720 !important;
  letter-spacing: 0 !important;
}

.price-2 {
  max-width: 820px !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
}

.tier {
  padding: 30px !important;
  background: #fff !important;
}

.tier.hot {
  background: linear-gradient(180deg, #fff, #fbf8ff) !important;
  border-color: #cfc1ec !important;
}

.tier li::before {
  color: var(--clinical-green) !important;
}

.story-grid {
  grid-template-columns: 320px minmax(0, 1fr) !important;
  gap: 72px !important;
}

.story-card {
  text-align: left !important;
  padding: 24px !important;
  background: #fbfafc !important;
}

.story-card img,
.avatar-fallback {
  margin-left: 0 !important;
  margin-right: 0 !important;
  border-radius: 8px !important;
  width: 132px !important;
  height: 132px !important;
}

.story-card .role {
  color: var(--lav-deeper) !important;
}

.story-card li::before {
  background: var(--lav-deep) !important;
}

.story-prose {
  max-width: 720px;
  color: #4f4a58 !important;
}

.story-prose .lead-q {
  font-size: clamp(24px, 3vw, 32px) !important;
  line-height: 1.36 !important;
  font-weight: 700 !important;
}

.timeline {
  border-left-color: #d7c8ed !important;
}

.timeline .tl::before {
  background: #fff !important;
  border-color: var(--lav-deep) !important;
}

.story-quote {
  border-left-color: var(--lav-deep) !important;
  background: #fbfafc !important;
  border-radius: 0 8px 8px 0 !important;
}

.safety {
  background: #fff !important;
  border: 1px solid #ead8b7 !important;
  border-left: 3px solid var(--clinical-amber) !important;
}

footer {
  background: #fff;
}

body:has(.hero) #langBtn,
body:has(.hero) .lang-menu {
  border-radius: 8px !important;
}

/* Chat shell */
body:has(.app) {
  background: #fff;
}

.app {
  grid-template-columns: 58px var(--side-w, 278px) minmax(0, 1fr) !important;
}

.rail {
  background: #14121a !important;
  border-right: none !important;
  padding-top: 16px !important;
}

.rail-logo {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .08);
  border-radius: 8px;
}

.rail-logo img {
  width: 26px !important;
  height: 26px !important;
}

.rail-ic,
.community-float-btn,
#langBtn {
  border-radius: 8px !important;
  color: rgba(255, 255, 255, .56) !important;
}

.rail-ic:hover,
.community-float-btn:hover,
#langBtn:hover {
  background: rgba(255, 255, 255, .08) !important;
  color: #fff !important;
}

.rail-ic.active {
  background: var(--lav) !important;
  color: #21172f !important;
}

.rail-beta {
  background: #fff !important;
  color: var(--lav-deeper) !important;
  border: none !important;
}

.side {
  background: #f8f7fa !important;
  border-right: 1px solid var(--line) !important;
  padding: 18px 14px !important;
}

.side-head {
  padding: 10px 4px 16px !important;
}

.side-head-title,
.topbar .title,
.tools-title {
  font-weight: 720 !important;
  letter-spacing: 0 !important;
  color: var(--ink) !important;
}

.side-head-add,
.sv-act-btn,
.conv,
.folder-hd,
.vault-btn,
.topbar-avatar,
.install-app-btn,
.user-menu,
.lang-menu,
.ss-menu,
.sv-upload-menu {
  border-radius: 8px !important;
}

.side-head-add,
.sv-act-btn,
.vault-summary-btn {
  border: 1px solid var(--line) !important;
  background: #fff !important;
  color: var(--ink) !important;
}

.sv-act-btn.primary {
  background: var(--ink) !important;
  border-color: var(--ink) !important;
  color: #fff !important;
}

.conv {
  font-size: 13px !important;
  color: #625d6a !important;
}

.conv-row.active,
.conv-row:hover,
.folder-hd:hover,
.vrow:hover,
.vault-btn:hover {
  background: #fff !important;
}

.conv-row.active .conv {
  color: var(--ink) !important;
}

.side-label {
  letter-spacing: .08em !important;
  font-size: 10px !important;
}

.main {
  background:
    linear-gradient(180deg, #fff 0%, #fff 66%, #fbfafc 100%) !important;
}

.topbar {
  height: 62px !important;
  padding: 0 26px !important;
  border-bottom: 1px solid rgba(230, 225, 236, .72);
}

.topbar-avatar {
  background: #fff !important;
  border: 1px solid var(--line) !important;
  color: var(--ink) !important;
}

.topbar-avatar.has-image {
  background: transparent !important;
  border: 0 !important;
  overflow: hidden !important;
  padding: 0 !important;
}

.topbar-avatar.has-image img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.topbar-avatar.guest {
  background: var(--ink) !important;
  border-color: var(--ink) !important;
  color: #fff !important;
}

.stream {
  padding-top: 34px !important;
  background: transparent !important;
}

.stream:has(.intro) {
  display: block !important;
  background: #fffdfc !important;
  padding: clamp(46px, 5.2vh, 64px) 0 clamp(116px, 13vh, 150px) !important;
}

.main:has(.intro) .stream {
  display: block !important;
  justify-content: flex-start !important;
  overflow: hidden !important;
  padding: clamp(46px, 5.2vh, 64px) 0 clamp(116px, 13vh, 150px) !important;
}

.thread,
.composer,
.composer-wrap .legal {
  max-width: 900px !important;
}

.intro {
  max-width: 560px !important;
  margin: 0 auto !important;
  text-align: center !important;
  padding: 0 24px !important;
}

.intro h1 {
  max-width: 1080px !important;
  margin: 0 auto !important;
  text-align: center !important;
  color: #2d2433 !important;
  font-size: 30px !important;
  line-height: 1.2 !important;
  font-weight: 800 !important;
}

.intro h1 .accent {
  color: #76509d !important;
  font-size: 25px !important;
  line-height: 1.3 !important;
  margin-top: 6px !important;
}

html[lang="en"] .intro h1 {
  font-size: 30px !important;
}

.intro-chips {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 10px !important;
  margin: 22px auto 0 !important;
  width: min(100%, 420px) !important;
  max-width: 420px !important;
}

.intro-chip {
  background: #fff !important;
  border: 1px solid var(--line) !important;
  min-height: 58px !important;
  padding: 12px 18px !important;
  text-align: left !important;
  min-width: 0 !important;
}

.intro-chip svg {
  color: var(--lav-deeper) !important;
}

.intro-chip-main {
  color: var(--ink) !important;
  font-weight: 700 !important;
}

.intro-chip-sub {
  color: #716b78 !important;
}

.intro-or {
  text-align: center !important;
  color: var(--dim) !important;
  margin-top: 18px !important;
}

.intro-upload {
  margin-left: auto !important;
  margin-right: auto !important;
  background: #c9a4ff !important;
  color: #2d2433 !important;
  border-radius: 12px !important;
  max-width: 420px !important;
  min-height: 46px !important;
  padding: 11px 18px !important;
}

.intro-upload:hover,
.intro-upload.active {
  background: #b88af2 !important;
  color: #2d2433 !important;
}

.intro-upload-wrap {
  max-width: 420px !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

.intro-upload-note {
  margin-left: auto !important;
  margin-right: auto !important;
  justify-content: center !important;
  color: #625d6a !important;
  max-width: 420px !important;
  margin-top: 12px !important;
}

.msg {
  margin-bottom: 34px !important;
}

.msg .role {
  margin-bottom: 10px !important;
}

.msg .role .ic {
  border-radius: 8px !important;
  background: #fff !important;
  border: 1px solid var(--line) !important;
  color: var(--ink) !important;
}

.msg.ai .ic {
  background: var(--ink) !important;
  border-color: var(--ink) !important;
  color: #fff !important;
}

.msg .who {
  font-weight: 680 !important;
}

.bubble {
  font-size: 15.5px !important;
  line-height: 1.82 !important;
  color: #403b48 !important;
}

.msg.user .bubble {
  background: #f6f1ff !important;
  border: 1px solid #e4d6f6 !important;
  border-radius: 8px !important;
  color: var(--ink) !important;
  padding: 13px 15px !important;
}

.msg.ai .bubble.answer {
  background: #fff !important;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px 22px;
  white-space: pre-wrap;
}

.msg.ai .bubble h1,
.msg.ai .bubble h2,
.msg.ai .bubble h3,
.preview-md h1,
.preview-md h2,
.preview-md h3 {
  color: var(--ink) !important;
  font-weight: 720 !important;
  letter-spacing: 0 !important;
  margin: 18px 0 8px !important;
  line-height: 1.25 !important;
}

.msg.ai .bubble h1,
.preview-md h1 {
  font-size: 22px !important;
}

.msg.ai .bubble h2,
.preview-md h2 {
  font-size: 18px !important;
}

.msg.ai .bubble h3,
.preview-md h3 {
  font-size: 16px !important;
}

.msg.ai .bubble p,
.preview-md p {
  margin: 8px 0;
}

.msg.ai .bubble strong,
.preview-md strong {
  color: var(--ink) !important;
  font-weight: 720 !important;
}

.msg.ai .bubble code,
.msg.ai .bubble pre,
.preview-md code,
.preview-md pre,
.preview-pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace !important;
}

.msg.ai .bubble code,
.preview-md code {
  background: #f2eff6 !important;
  color: #30283d !important;
  border-radius: 5px !important;
}

.msg.ai .bubble pre,
.preview-md pre {
  background: #f8f7fa !important;
  border: 1px solid var(--line) !important;
  border-radius: 8px !important;
}

.msg.ai .bubble table,
.preview-md table {
  border-collapse: separate !important;
  border-spacing: 0 !important;
  width: 100% !important;
  margin: 16px 0 !important;
  font-size: 13.5px !important;
  line-height: 1.55 !important;
  border: 1px solid var(--line) !important;
  border-radius: 8px !important;
  overflow: hidden !important;
}

.msg.ai .bubble table th,
.msg.ai .bubble table td,
.preview-md table th,
.preview-md table td {
  border: 0 !important;
  border-bottom: 1px solid var(--line) !important;
  padding: 10px 12px !important;
  vertical-align: top !important;
}

.msg.ai .bubble table tr:last-child td,
.preview-md table tr:last-child td {
  border-bottom: 0 !important;
}

.msg.ai .bubble table th,
.preview-md table th {
  background: #f8f7fa !important;
  color: var(--ink) !important;
  font-weight: 700 !important;
}

.msg.ai .bubble blockquote,
.preview-md blockquote {
  margin: 14px 0 !important;
  padding: 12px 14px !important;
  border-left: 3px solid var(--lav-deep) !important;
  background: #fbfafc !important;
  color: #4c4655 !important;
}

.message-actions {
  margin-top: 8px !important;
  padding-left: 4px;
}

.action-icon-btn {
  border-radius: 8px !important;
}

.think {
  background: #fbfafc !important;
  border-color: var(--line) !important;
}

.think summary {
  color: var(--ink) !important;
}

.think summary .dot {
  background: var(--clinical-green) !important;
}

.step .badge {
  border-radius: 6px !important;
  font-weight: 720 !important;
}

.step .badge.run {
  background: #f1ebfb !important;
  color: var(--lav-deeper) !important;
}

.step .badge.done {
  background: #edf7f2 !important;
  color: var(--clinical-green) !important;
}

.composer-wrap {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), #fff 30%) !important;
  padding-bottom: 22px !important;
  padding-top: 34px !important;
}

.composer {
  padding: 12px !important;
  background: rgba(255, 255, 255, .96) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.composer:focus-within {
  border-color: #c7b8e6 !important;
  box-shadow: 0 0 0 3px rgba(231, 209, 255, .42) !important;
}

.composer textarea {
  font-size: 15px !important;
}

.icon-btn {
  background: #f8f7fa !important;
  border: 1px solid var(--line) !important;
  color: var(--ink) !important;
}

.icon-btn:hover {
  background: #fff !important;
  border-color: #cfc7dd !important;
}

.icon-btn.send {
  width: 38px !important;
  height: 38px !important;
  flex: 0 0 38px !important;
  border-radius: 999px !important;
  background: #d8d3ff !important;
  border-color: #d8d3ff !important;
  color: #fff !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
}

.icon-btn.send.has-content:not(:disabled):not(.is-stop) {
  background: var(--lav-deep) !important;
  border-color: var(--lav-deep) !important;
  box-shadow: 0 3px 8px rgba(95, 53, 200, .26) !important;
}

.icon-btn.send.has-content:not(:disabled):not(.is-stop):hover {
  background: var(--lav-deeper) !important;
  border-color: var(--lav-deeper) !important;
}

.icon-btn.send svg {
  width: 19px !important;
  height: 19px !important;
  fill: none !important;
  stroke: currentColor !important;
  stroke-width: 2.2 !important;
  stroke-linecap: round !important;
  stroke-linejoin: round !important;
}

.icon-btn.send.is-stop {
  background: #d9534f !important;
  border-color: #d9534f !important;
}

.icon-btn.send:disabled,
.icon-btn.send[disabled] {
  background: #d8d3ff !important;
  border-color: #d8d3ff !important;
  color: #fff !important;
  opacity: 1 !important;
  cursor: default !important;
}

.verify-toggle {
  border-radius: 8px !important;
  color: #625d6a !important;
}

.verify-toggle:hover {
  background: #f8f7fa !important;
}

.verify-toggle.on {
  color: var(--lav-deeper) !important;
}

.verify-toggle .sw {
  background: #d7d0df !important;
}

.verify-toggle.on .sw {
  background: var(--lav-deep) !important;
}

.composer-wrap .legal {
  color: #908a99 !important;
}

.tools-view,
.preview-panel {
  background: #fff !important;
}

.app.tools-mode {
  grid-template-columns: 58px minmax(0, 1fr) !important;
}

.app.tools-mode .side {
  display: none !important;
}

.app.tools-mode .main {
  grid-column: 2 / 3 !important;
  width: 100% !important;
  min-width: 0 !important;
}

.app.tools-mode .stream,
.app.tools-mode .composer-wrap {
  display: none !important;
}

.app.tools-mode .tools-view {
  display: block !important;
  width: 100% !important;
  min-width: 0 !important;
  height: calc(100dvh - 62px) !important;
  overflow-y: auto !important;
  padding: 34px 0 64px !important;
}

.app.preview-open {
  grid-template-columns: 60px clamp(220px, min(var(--side-w, 264px), 32vw), 420px) minmax(0, 1fr) clamp(340px, min(var(--preview-w, 460px), 42vw), 560px) !important;
  overflow: hidden !important;
}

.app.preview-open .side,
.app.preview-open .main,
.app.preview-open .preview-panel {
  min-width: 0 !important;
}

.vault-summary-btn {
  min-width: 0 !important;
  max-width: 100% !important;
  overflow: hidden !important;
}

.vault-summary-btn span {
  min-width: 0 !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  white-space: nowrap !important;
}

@media (max-width: 1320px) and (min-width: 781px) {
  .app.preview-open {
    grid-template-columns: 60px clamp(220px, min(var(--side-w, 264px), 34vw), 420px) minmax(0, 1fr) !important;
  }

  .app.preview-open .preview-panel {
    position: fixed !important;
    top: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: min(560px, calc(100vw - 60px)) !important;
    max-width: calc(100vw - 60px) !important;
    z-index: 45 !important;
    border-left: 1px solid var(--line) !important;
    box-shadow: -18px 0 44px -28px rgba(20, 18, 26, .45) !important;
  }

  .app.preview-open #resizePreview {
    display: none !important;
  }
}

.tools-inner {
  width: 100% !important;
  max-width: 1180px !important;
  margin: 0 auto !important;
  padding: 0 40px !important;
}

.app.tools-mode .tools-title {
  font-size: clamp(36px, 4vw, 56px) !important;
  line-height: 1 !important;
  margin-bottom: 10px !important;
}

.tools-sub {
  color: #716b78 !important;
  max-width: 420px !important;
  margin-bottom: 22px !important;
}

.tool-filter {
  border-radius: 8px !important;
  font-weight: 680 !important;
}

.tool-filter.active {
  background: var(--ink) !important;
  border-color: var(--ink) !important;
}

.tool-card-icon,
.app-run-ico,
.app-step-num,
.file .fic,
.vrow .vfic,
.attach-chip,
.attach-thumb {
  background: #f1ebfb !important;
  color: var(--lav-deeper) !important;
}

.tool-card-kind {
  border-radius: 6px !important;
}

.app.tools-mode .tools-grid {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)) !important;
  gap: 16px !important;
}

.preview-head {
  background: #fbfafc !important;
}

.preview-body {
  background: #fff !important;
}

.preview-body.media {
  background: #f8f7fa !important;
}

.preview-md {
  color: #403b48 !important;
}

.auth-mask,
.acct-mask,
.dlg-mask,
.trial-mask,
.app-run-mask,
.wechat-qr-overlay,
.install-guide-overlay {
  background: rgba(20, 18, 26, .46) !important;
}

.auth-card,
.acct-card,
.trial-card,
.app-run-card,
.dlg,
.install-guide {
  background: #fff !important;
}

.auth-card {
  width: 420px !important;
  max-width: 92vw !important;
  padding: 34px 32px !important;
}

.auth-card h2 {
  max-width: none !important;
  margin: 10px 0 8px !important;
  text-align: center !important;
  font-size: clamp(30px, 4.2vw, 42px) !important;
  line-height: 1.02 !important;
  font-weight: 850 !important;
}

.auth-sub {
  max-width: 320px !important;
  margin: 0 auto 20px !important;
}

.auth-card input,
.acct-card input,
.dlg-body input,
.tr-fill,
.rf-input {
  border-radius: 8px !important;
  border-color: var(--line) !important;
}

.auth-card input:focus,
.acct-card input:focus,
.dlg-body input:focus,
.tr-fill:focus,
.rf-input:focus {
  border-color: #c7b8e6 !important;
  box-shadow: 0 0 0 3px rgba(231, 209, 255, .42) !important;
}

.vquota .bar,
.vault-indet {
  background: #ece8f1 !important;
}

.vquota .bar i,
.vault-indet i {
  background: var(--lav-deep) !important;
}

@media (max-width: 860px) {
  body:has(.hero) .nav-in,
  .wrap {
    padding-left: 22px !important;
    padding-right: 22px !important;
  }

  .hero {
    text-align: left !important;
    padding-top: 76px !important;
  }

  .hero-cta {
    justify-content: flex-start !important;
  }

  .story-grid {
    grid-template-columns: 1fr !important;
    gap: 34px !important;
  }

  .story-card {
    max-width: none !important;
    margin: 0 !important;
  }
}

@media (max-width: 780px) {
  html,
  body {
    max-width: 100%;
    overflow-x: hidden;
  }

  body:has(.hero) .nav-in {
    gap: 14px;
  }

  body:has(.hero) .nav-links {
    display: none !important;
  }

  body:has(.hero) #langBtn {
    color: var(--ink) !important;
  }

  .app {
    grid-template-columns: 1fr !important;
    max-width: 100vw !important;
    overflow-x: hidden !important;
  }

  .rail {
    width: 58px !important;
  }

  .side {
    left: 58px !important;
  }

  .topbar {
    height: 58px !important;
    padding: 0 14px !important;
    max-width: 100vw !important;
    overflow: hidden !important;
  }

  .topbar-avatar.guest {
    max-width: 126px !important;
    padding: 7px 12px !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
  }

  .main .topbar .topbar-avatar.guest {
    margin-left: auto !important;
  }

  /* 铃铛显示时把右侧按钮视为一个整体：铃铛负责吃掉左侧余量，头像/登录按钮只留正常间距。
     否则铃铛和 guest 按钮同时 margin-left:auto，会把铃铛推到屏幕中央。 */
  .main .topbar .community-notification-btn:not([hidden]) {
    margin-left: auto !important;
  }

  .main .topbar .community-notification-btn:not([hidden]) + .topbar-avatar {
    margin-left: 6px !important;
  }

  .main,
  .stream,
  .thread,
  .composer-wrap,
  .composer {
    max-width: 100vw !important;
    min-width: 0 !important;
    overflow-x: hidden !important;
  }

  .stream {
    padding-top: 22px !important;
  }

  .main:has(.intro) .stream {
    display: flex !important;
    flex-direction: column !important;
    justify-content: flex-start !important;
    overflow-y: auto !important;
    padding: 18px 0 132px !important;
  }

  .main:has(.intro) .composer-wrap {
    background: #fff !important;
    border-top: 1px solid var(--line) !important;
    padding-top: 10px !important;
  }

  .intro {
    padding: 10px 18px 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
    overflow-x: hidden !important;
  }

  .main:has(.intro) .intro {
    width: min(100%, 460px) !important;
    max-width: 460px !important;
    min-width: 0 !important;
    padding: 0 16px !important;
    margin: auto !important;
    box-sizing: border-box !important;
    overflow-x: hidden !important;
    text-align: center !important;
  }

  .intro h1 {
    font-size: 30px !important;
    max-width: 100% !important;
    white-space: normal !important;
    overflow-wrap: normal !important;
    word-break: normal !important;
  }

  .main:has(.intro) .intro h1 {
    width: 100% !important;
    max-width: 100% !important;
    font-size: 23px !important;
    line-height: 1.15 !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    word-break: normal !important;
    text-align: center !important;
  }

  .main:has(.intro) .intro h1 .accent {
    display: block !important;
    max-width: 100% !important;
    font-size: 20px !important;
    line-height: 1.25 !important;
    margin-top: 6px !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
    text-align: center !important;
  }

  html[lang="en"] .main:has(.intro) .intro h1 {
    font-size: 23px !important;
  }

  .intro-chips {
    grid-template-columns: 1fr !important;
    width: min(100%, 420px) !important;
    max-width: 420px !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }

  .main:has(.intro) .intro-chips {
    width: min(100%, 420px) !important;
    max-width: 420px !important;
    grid-template-columns: 1fr !important;
    margin: 14px auto 0 !important;
    gap: 8px !important;
  }

  .intro-chip {
    min-width: 0 !important;
  }

  .main:has(.intro) .intro-chip {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 0 !important;
    padding: 8px 14px !important;
    gap: 10px !important;
  }

  .main:has(.intro) .intro-chip-text,
  .main:has(.intro) .intro-chip-main,
  .main:has(.intro) .intro-chip-sub {
    min-width: 0 !important;
    max-width: 100% !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
  }

  .main:has(.intro) .intro-chip-main {
    font-size: 13.8px !important;
    line-height: 1.2 !important;
  }

  .main:has(.intro) .intro-chip-sub {
    font-size: 11.8px !important;
    line-height: 1.28 !important;
  }

  .main:has(.intro) .intro-or {
    margin-top: 10px !important;
  }

  .intro-upload {
    width: 100% !important;
    max-width: 420px !important;
  }

  .main:has(.intro) .intro-upload-wrap,
  .main:has(.intro) .intro-upload,
  .main:has(.intro) .intro-upload-note {
    width: 100% !important;
    max-width: 420px !important;
  }

  .main:has(.intro) .intro-upload-wrap {
    margin-top: 9px !important;
  }

  .main:has(.intro) .intro-upload {
    min-height: 42px !important;
    padding: 9px 16px !important;
  }

  .main:has(.intro) .intro-upload-note {
    display: flex !important;
    margin-top: 8px !important;
    font-size: 11.5px !important;
    line-height: 1.25 !important;
  }

  .msg.ai .bubble.answer {
    padding: 16px !important;
  }

  .composer {
    border-radius: 8px !important;
  }

  .composer .verify-toggle {
    max-width: calc(100% - 16px) !important;
  }

  .composer .verify-toggle .vt-label {
    display: none !important;
  }
}

/* Community is its own product tab. Keep the shared rail/topbar shell without
   inheriting tools-mode's forced #toolsView visibility. */
.app.community-mode {
  grid-template-columns: 58px minmax(0, 1fr) !important;
}

.app.community-mode .side,
.app.community-mode #stream,
.app.community-mode .composer-wrap,
.app.community-mode #toolsView {
  display: none !important;
}

.app.community-mode .main {
  grid-column: 2 / 3 !important;
  width: 100% !important;
  min-width: 0 !important;
  max-width: none !important;
}

.app.community-mode #communityView {
  display: block !important;
  width: 100% !important;
  min-width: 0 !important;
  height: calc(100dvh - 62px) !important;
  overflow-y: auto !important;
}

@media (max-width: 780px) {
  .app.community-mode {
    grid-template-columns: 1fr !important;
  }

  .app.community-mode .main {
    grid-column: 1 / 2 !important;
  }
}

/* Final welcome-carousel guard: keep the approved warm, borderless treatment
   after the generic desktop and mobile welcome rules above. */
.main:has(.intro) .intro {
  position: relative !important;
  isolation: isolate !important;
  overflow: visible !important;
}

.main:has(.intro) .intro::before {
  content: "" !important;
  position: absolute !important;
  z-index: -2 !important;
  pointer-events: none !important;
  width: min(620px, calc(100vw + 80px)) !important;
  height: 610px !important;
  left: 50% !important;
  top: 86px !important;
  transform: translateX(-50%) !important;
  background: radial-gradient(ellipse at 48% 38%,
    rgba(231, 209, 255, .98) 0%,
    rgba(231, 209, 255, .82) 34%,
    rgba(239, 224, 255, .54) 56%,
    rgba(255, 253, 252, 0) 78%) !important;
  filter: blur(6px) !important;
}

.main:has(.intro) .intro::after {
  content: "" !important;
  position: absolute !important;
  z-index: -1 !important;
  pointer-events: none !important;
  width: 360px !important;
  height: 270px !important;
  left: -70px !important;
  bottom: 80px !important;
  background: radial-gradient(ellipse,
    rgba(246, 225, 229, .38),
    rgba(255, 253, 252, 0) 72%) !important;
  filter: blur(12px) !important;
}

.main:has(.intro) .intro-carousel {
  background: transparent !important;
  border: 0 !important;
  box-shadow: none !important;
}

.main:has(.intro) .intro-carousel-title {
  font-size: 23px !important;
  line-height: 1.2 !important;
}

.main:has(.intro) .ic-feature-title {
  font-size: 15px !important;
}

.main:has(.intro) .ic-feature-sub,
.main:has(.intro) .intro-carousel-guide {
  font-size: 12.5px !important;
}

@media (max-width: 600px) {
  .main:has(.intro) .intro-carousel-title {
    font-size: 21px !important;
  }

  .main:has(.intro) .ic-feature-title {
    font-size: 13.5px !important;
  }

  .main:has(.intro) .ic-feature-sub,
  .main:has(.intro) .intro-carousel-guide {
    font-size: 11.5px !important;
  }
}

/* Final app-mode guards. These intentionally live last so feature modes can
   override generic welcome/composer rules above. */
.app.tools-mode {
  grid-template-columns: 58px minmax(0, 1fr) !important;
}

.app.tools-mode .side,
.app.tools-mode #stream,
.app.tools-mode .composer-wrap {
  display: none !important;
}

.app.tools-mode .main {
  grid-column: 2 / 3 !important;
  width: 100% !important;
  min-width: 0 !important;
  max-width: none !important;
}

.app.tools-mode #toolsView {
  display: block !important;
  width: 100% !important;
  min-width: 0 !important;
  min-height: calc(100dvh - 62px) !important;
  overflow-y: auto !important;
}

.app.tools-mode .tools-inner {
  width: 100% !important;
  max-width: 1180px !important;
  margin: 0 auto !important;
  padding: 34px 40px 64px !important;
}

@media (max-width: 780px) {
  .app.tools-mode {
    grid-template-columns: 1fr !important;
  }

  .app.tools-mode .main {
    grid-column: 1 / 2 !important;
  }

  .app.tools-mode .tools-inner {
    padding: 24px 16px 44px !important;
  }
}

/* Expert Care is a full product tab. Keep this guard after generic welcome
   rules so the hidden chat stream cannot reclaim the old sidebar column. */
.app.expert-mode {
  grid-template-columns: 58px minmax(0, 1fr) !important;
}

.app.expert-mode .side,
.app.expert-mode #stream,
.app.expert-mode .composer-wrap,
.app.expert-mode #toolsView,
.app.expert-mode #communityView {
  display: none !important;
}

.app.expert-mode .main {
  grid-column: 2 / 3 !important;
  width: 100% !important;
  min-width: 0 !important;
  max-width: none !important;
}

.app.expert-mode #expertCareView {
  display: block !important;
  width: 100% !important;
  min-width: 0 !important;
  min-height: calc(100dvh - 62px) !important;
  overflow-x: hidden !important;
  overflow-y: auto !important;
}

@media (max-width: 780px) {
  .app.expert-mode {
    grid-template-columns: 1fr !important;
  }

  .app.expert-mode .main {
    grid-column: 1 / 2 !important;
  }
}