/* My AI Mac · v2b：优势 / 适合谁 / 怎么用 / 安全 / 常见问题 / CTA / 页脚 / 在线客服 / 到货通知
   在 styles.css、v2a.css 之后引用；沿用两者已有的变量 */

/* ---------- 通用：区块节奏 ---------- */
.section.band { background: var(--v2-band, #EEE8DC); padding-bottom: clamp(88px, 11vw, 150px); }
@media (prefers-color-scheme: dark) { .section.band { --v2-band: #1A1814; } }
.section-top { display: flex; flex-direction: column; gap: 14px; margin-bottom: clamp(28px, 4vw, 44px); }
.section-top .section-head { margin-bottom: 0; }
.section-aside { font-size: 14px; color: var(--text-2); }
@media (min-width: 960px) {
  .section-top { flex-direction: row; align-items: flex-end; justify-content: space-between; gap: 40px; }
}

/* ---------- 四个优势（v1 卡片的差异） ---------- */
.features { gap: 12px; }
.feature { display: grid; grid-template-columns: 112px minmax(0, 1fr); border-radius: 20px; }
.feature-media { aspect-ratio: auto; height: 100%; min-height: 124px; border-radius: 0; }
.feature-body { padding: 16px 16px 18px; align-self: center; }
.feature h3 { font-size: 16.5px; }
.feature p { margin-top: 6px; font-size: 14px; line-height: 1.65; }
@media (min-width: 640px) {
  .features { grid-template-columns: 1fr 1fr; gap: 16px; }
  .feature { display: flex; flex-direction: column; border-radius: var(--radius); }
  .feature-media { aspect-ratio: 3 / 2; height: auto; min-height: 0; border-radius: var(--radius) var(--radius) 0 0; }
  .feature-body { padding: 22px 24px 26px; align-self: stretch; }
  .feature h3 { font-size: 19px; }
  .feature p { font-size: 15px; }
}
@media (min-width: 1120px) {
  .features { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
  .feature-body { padding: 22px 22px 26px; }
}

/* ---------- 适合谁 ---------- */
.who-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.who {
  display: flex; flex-direction: column; min-width: 0;
  background: var(--surface); border-radius: 20px; overflow: hidden;
  box-shadow: var(--shadow-sm), inset 0 0 0 1px var(--hairline);
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.who-media {
  aspect-ratio: 4 / 3; overflow: hidden; background: #EADFCD;
  -webkit-mask-image: -webkit-radial-gradient(white, black);
}
.who-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.who-body { padding: 14px 14px 16px; }
.who-role { font-size: 16px; font-weight: 600; line-height: 1.4; }
.who-body p { margin-top: 4px; font-size: 13.5px; line-height: 1.6; color: var(--text-2); }
@media (min-width: 960px) {
  .who-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
  .who { border-radius: var(--radius); }
  .who-media { aspect-ratio: 3 / 2; }
  .who-body { padding: 20px 22px 24px; }
  .who-role { font-size: 18px; }
  .who-body p { margin-top: 6px; font-size: 14.5px; }
}
@media (hover: hover) {
  .who:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
  .who:hover .who-media img { transform: scale(1.04); }
}

/* ---------- 两种方式怎么用：Tab + 步骤 + 配图 ---------- */
.tabs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px;
  margin-bottom: 20px; padding: 4px; border-radius: 999px;
  background: var(--v2-tint);
}
.tab {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 12px; border: 0; border-radius: 999px;
  background: transparent; color: var(--text-2);
  font-size: 14.5px; font-weight: 600; white-space: nowrap; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color .2s, color .2s, box-shadow .2s;
}
.tab:hover { color: var(--text); }
.tab[aria-selected="true"] {
  background: var(--v2-seg-on); color: var(--text);
  box-shadow: 0 1px 2px rgba(31, 29, 26, .06), 0 6px 16px -6px rgba(31, 29, 26, .16);
}
.tab-count {
  display: none; padding: 1px 8px; border-radius: 999px;
  background: var(--v2-tint); color: var(--text-2);
  font-size: 12px; font-weight: 600; line-height: 1.5;
}
.tab[aria-selected="true"] .tab-count { background: var(--primary-soft); color: var(--primary-ink); }
@media (min-width: 480px) { .tab-count { display: inline-block; } }
@media (min-width: 640px) {
  .tabs { display: inline-grid; grid-template-columns: auto auto; }
  .tab { padding: 0 24px; font-size: 15px; }
}
@media (prefers-reduced-motion: no-preference) {
  .tab-panel.is-entering { animation: rise .5s var(--ease) both; }
}
.how-banner { border-radius: 20px; }
.how-banner.is-flow { aspect-ratio: 3 / 1; background: #EADFCD; }
.steps { margin: -24px 10px 0; padding: 24px 20px 26px; gap: 24px; border-radius: 20px; }
.how-banner.is-flow + .steps { margin-top: -12px; }
.step:not(:last-child)::before { bottom: -24px; }
.step p { font-size: 14.5px; }
.step-tag {
  display: inline-flex; align-items: center; height: 22px; margin-top: 8px; padding: 0 8px; border-radius: 999px;
  background: var(--primary-soft); color: var(--primary-ink);
  font-size: 12px; font-weight: 600;
}
@media (min-width: 720px) {
  .how-banner { border-radius: var(--radius-lg); }
  .how-banner.is-flow { aspect-ratio: 3 / 1; }
}
@media (min-width: 840px) {
  .steps {
    grid-template-columns: repeat(var(--n, 3), minmax(0, 1fr)); gap: 32px;
    margin: -64px 32px 0; padding: 36px 36px 40px; border-radius: var(--radius);
  }
  .how-banner.is-flow + .steps { margin-top: -40px; }
  .step:not(:last-child)::before { right: -16px; bottom: auto; }
}

/* ---------- 安全与隐私 ---------- */
.sec-layout { display: grid; gap: 16px; }
.sec-media {
  aspect-ratio: 3 / 2; border-radius: 20px; overflow: hidden; background: #2E2B4D;
  -webkit-mask-image: -webkit-radial-gradient(white, black);
}
.sec-media img { width: 100%; height: 100%; object-fit: cover; }
.sec-list {
  list-style: none; margin: 0; padding: 4px 18px;
  background: var(--surface); border-radius: 20px;
  box-shadow: var(--shadow-sm), inset 0 0 0 1px var(--hairline);
}
.sec-item {
  display: grid; grid-template-columns: 40px minmax(0, 1fr); align-items: center; gap: 14px;
  padding: 14px 0; font-size: 15px; font-weight: 500; line-height: 1.55;
}
.sec-item + .sec-item { border-top: 1px solid var(--hairline); }
.sec-ic {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--primary-soft); color: var(--primary-ink);
}
.sec-ic svg { width: 20px; height: 20px; }
.sec-item small { display: block; margin-top: 2px; font-size: 13px; font-weight: 400; color: var(--text-2); }
@media (min-width: 960px) {
  .sec-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; align-items: stretch; }
  .sec-media { aspect-ratio: auto; height: 100%; min-height: 400px; border-radius: var(--radius); }
  .sec-list { display: flex; flex-direction: column; justify-content: center; padding: 12px 32px; border-radius: var(--radius); }
  .sec-item { grid-template-columns: 44px minmax(0, 1fr); gap: 18px; padding: 18px 0; font-size: 16px; }
  .sec-ic { width: 44px; height: 44px; border-radius: 14px; }
  .sec-ic svg { width: 22px; height: 22px; }
}

/* ---------- 两列常见问题 ---------- */
.faq-cols { display: grid; gap: 12px; }
.faq-cols .faq-list { padding: 2px 18px; border-radius: 20px; box-shadow: var(--shadow-sm), inset 0 0 0 1px var(--hairline); }
.faq-cols .faq-item summary { padding: 18px 0; gap: 16px; font-size: 15.5px; }
.faq-cols .faq-a { padding: 0 40px 20px 0; font-size: 14.5px; line-height: 1.8; }
.faq-cols .faq-ic { width: 26px; height: 26px; }
.faq-q { display: flex; align-items: baseline; gap: 10px; min-width: 0; }
.faq-q::before {
  content: "Q"; flex: none;
  font-size: 13px; font-weight: 700; color: var(--primary-ink); letter-spacing: .02em;
}
@media (min-width: 960px) {
  .faq-cols { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; align-items: start; }
  .faq-cols .faq-list { padding: 4px 28px; border-radius: var(--radius); }
  .faq-cols .faq-item summary { padding: 22px 0; font-size: 16.5px; }
  .faq-cols .faq-a { font-size: 15px; padding-left: 23px; }
}

/* ---------- 收尾 CTA ---------- */
.cta { padding: 52px 20px; }
.cta-actions { display: flex; flex-direction: column; gap: 12px; max-width: 360px; margin: 32px auto 0; }
.cta-meta {
  list-style: none; margin: 28px 0 0; padding: 0;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 20px;
  font-size: 13px; color: #C9C7F2;
}
.cta-meta li { display: inline-flex; align-items: center; gap: 6px; }
.cta-meta svg { width: 15px; height: 15px; color: #B7D3B6; }
.btn-ghost-light {
  --h: 56px;
  background: rgba(255, 255, 255, .06); color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .3);
}
.btn-ghost-light:hover { background: rgba(255, 255, 255, .12); }
@media (min-width: 640px) {
  .cta { padding: 88px 48px; }
  .cta-actions { flex-direction: row; justify-content: center; max-width: none; }
  .cta-actions .btn { min-width: 168px; }
}

/* ---------- 多列页脚 ---------- */
.site-footer {
  margin-top: clamp(56px, 7vw, 96px);
  padding: 48px 0 calc(96px + env(safe-area-inset-bottom, 0px));
  background: var(--v2-band, #EEE8DC); border-top: 1px solid var(--hairline);
}
@media (prefers-color-scheme: dark) { .site-footer { --v2-band: #1A1814; } }
.footer-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 16px; }
.footer-brand { grid-column: 1 / -1; }
.footer-brand p { margin-top: 10px; max-width: 26em; font-size: 13.5px; line-height: 1.7; color: var(--text-2); }
.footer-col h4 { margin: 0 0 12px; font-size: 13px; font-weight: 600; letter-spacing: .02em; color: var(--text); }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: 13.5px; line-height: 1.5; }
.footer-col li { color: var(--text-2); }
.footer-col a, .link-btn { color: var(--text-2); transition: color .2s; }
.footer-col a:hover, .link-btn:hover { color: var(--text); text-decoration: none; }
.link-btn { padding: 0; border: 0; background: none; font: inherit; text-align: left; cursor: pointer; }
.footer-bottom {
  display: flex; flex-direction: column; gap: 6px;
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--hairline);
  font-size: 12.5px; color: var(--text-2);
}
@media (min-width: 840px) {
  .site-footer { padding-bottom: 36px; }
  .footer-grid { grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr)); gap: 40px; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}

/* ---------- 在线客服：悬浮按钮 ---------- */
.chat-fab {
  position: fixed; z-index: 60;
  right: 16px; bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  display: inline-flex; align-items: center; gap: 8px;
  height: 52px; padding: 0 20px 0 16px; border: 0; border-radius: 999px;
  background: #1F1D1A; color: #fff;
  font-size: 15px; font-weight: 600; letter-spacing: .02em; cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08), 0 16px 32px -12px rgba(31, 29, 26, .55), 0 4px 10px -4px rgba(31, 29, 26, .3);
  -webkit-tap-highlight-color: transparent;
  transition: transform .3s var(--ease), opacity .25s, background-color .2s;
}
.chat-fab:hover { background: #34312C; }
.chat-fab:active { transform: scale(.96); }
.chat-fab svg { width: 22px; height: 22px; flex: none; }
html.chat-open .chat-fab { opacity: 0; transform: scale(.85) translateY(8px); pointer-events: none; }
@media (prefers-color-scheme: dark) {
  .chat-fab { background: #F3EEE6; color: #1F1D1A; box-shadow: 0 16px 32px -12px rgba(0, 0, 0, .7); }
  .chat-fab:hover { background: #fff; }
}
@media (min-width: 960px) { .chat-fab { right: 24px; bottom: 24px; } }

/* ---------- 在线客服：聊天窗（手机全屏，桌面右下浮窗） ---------- */
.chat {
  position: fixed; z-index: 70; inset: 0;
  display: flex; flex-direction: column;
  background: var(--bg);
  opacity: 0; visibility: hidden; transform: translateY(24px);
  transition: opacity .3s var(--ease), transform .35s var(--ease), visibility 0s linear .35s;
}
@supports (height: 100dvh) { .chat { height: 100dvh; } }
.chat.is-open {
  opacity: 1; visibility: visible; transform: none;
  transition: opacity .3s var(--ease), transform .35s var(--ease), visibility 0s;
}
.chat-head {
  flex: none; display: flex; align-items: center; gap: 12px;
  padding: calc(10px + env(safe-area-inset-top, 0px)) 8px 10px 16px;
  background: var(--surface); border-bottom: 1px solid var(--hairline);
}
.chat-avatar {
  position: relative; flex: none;
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--primary); color: #fff;
}
.chat-avatar svg { width: 18px; height: 18px; }
.chat-title { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.chat-title strong { font-size: 15.5px; font-weight: 600; line-height: 1.35; }
.chat-title span { font-size: 12.5px; line-height: 1.4; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-close {
  flex: none; width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 0; border-radius: 12px; background: transparent; color: var(--text-2); cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.chat-close:hover { background: var(--v2-tint); color: var(--text); }
.chat-close svg { width: 20px; height: 20px; }
.chat-body {
  flex: 1; min-height: 0;
  display: flex; flex-direction: column; gap: 12px;
  padding: 16px; overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch;
}
.chat-day {
  align-self: center; padding: 2px 10px; border-radius: 999px;
  background: var(--v2-tint); color: var(--text-2); font-size: 12px; line-height: 1.6;
}
.msg { display: flex; flex-direction: column; gap: 4px; max-width: 84%; }
.msg-in { align-self: flex-start; }
.msg-out { align-self: flex-end; align-items: flex-end; }
.bubble {
  padding: 10px 14px; border-radius: 18px;
  font-size: 15px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere;
}
.msg-in .bubble { background: var(--surface); color: var(--text); border-bottom-left-radius: 6px; box-shadow: var(--shadow-sm), inset 0 0 0 1px var(--hairline); }
.msg-out .bubble { background: var(--primary); color: #fff; border-bottom-right-radius: 6px; }
.msg-in .bubble a { color: var(--primary-ink); text-decoration: underline; text-underline-offset: 3px; }
.msg-out .bubble a { color: #fff; text-decoration: underline; }
.msg-time { padding: 0 6px; font-size: 12px; color: var(--text-2); }
@media (prefers-reduced-motion: no-preference) {
  .msg.is-new { animation: v2-msg-in .35s var(--ease) both; }
}
@keyframes v2-msg-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.typing { display: inline-flex; align-items: center; gap: 4px; padding: 14px 16px; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--text-2); opacity: .5; }
@media (prefers-reduced-motion: no-preference) {
  .typing i { animation: v2-typing 1.2s ease-in-out infinite; }
  .typing i:nth-child(2) { animation-delay: .15s; }
  .typing i:nth-child(3) { animation-delay: .3s; }
}
@keyframes v2-typing {
  0%, 60%, 100% { transform: translateY(0); opacity: .45; }
  30% { transform: translateY(-4px); opacity: 1; }
}

.chat-quick { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center;
  min-height: 34px; padding: 6px 14px; border: 0; border-radius: 999px;
  background: var(--surface); box-shadow: inset 0 0 0 1px var(--hairline-2);
  color: var(--text); font-size: 13.5px; line-height: 1.4; text-align: left; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: box-shadow .2s, color .2s;
}
.chip:hover { box-shadow: inset 0 0 0 1px var(--primary); color: var(--primary-ink); }

.chat-form {
  flex: none; display: flex; align-items: flex-end; gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
  background: var(--surface); border-top: 1px solid var(--hairline);
}
.chat-input {
  flex: 1; min-width: 0; min-height: 44px; max-height: 128px;
  padding: 11px 16px; border: 0; border-radius: 22px;
  background: var(--v2-tint); color: var(--text);
  font: inherit; font-size: 16px; line-height: 22px;
  resize: none; outline: none;
  box-shadow: inset 0 0 0 1px transparent;
  transition: box-shadow .2s, background-color .2s;
}
.chat-input::placeholder { color: var(--text-2); opacity: .85; }
.chat-input:focus { background: var(--surface); box-shadow: inset 0 0 0 1.5px var(--primary); }
.chat-send {
  flex: none; width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 0; border-radius: 50%; background: var(--primary); color: #fff; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: opacity .2s, transform .2s var(--ease), background-color .2s;
}
.chat-send:hover { background: var(--primary-hover); }
.chat-send:active { transform: scale(.94); }
.chat-send:disabled { opacity: .35; cursor: default; transform: none; }
.chat-send svg { width: 20px; height: 20px; }
.chat-note { flex: none; padding: 0 16px 8px; background: var(--surface); font-size: 12px; color: var(--text-2); text-align: center; }

@media (max-width: 639px) {
  html.chat-open, html.chat-open body { overflow: hidden; }
}
@media (min-width: 640px) {
  .chat {
    inset: auto 24px 24px auto;
    width: 380px; height: min(640px, calc(100vh - 48px));
    border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--hairline);
    transform-origin: bottom right; transform: translateY(16px) scale(.97);
  }
  @supports (height: 100dvh) { .chat { height: min(640px, calc(100dvh - 48px)); } }
  .chat-head { padding-top: 12px; }
  .chat-form { padding-bottom: 12px; }
}

/* ---------- 到货通知弹窗 ---------- */
html.modal-open, html.modal-open body { overflow: hidden; }
.modal {
  position: fixed; z-index: 80; inset: 0;
  display: flex; align-items: flex-end; justify-content: center;
  visibility: hidden; transition: visibility 0s linear .4s;
}
.modal.is-open { visibility: visible; transition: visibility 0s; }
.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(20, 18, 15, .45);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
  opacity: 0; transition: opacity .3s var(--ease);
}
.modal.is-open .modal-backdrop { opacity: 1; }
.modal-panel {
  position: relative; width: 100%; max-height: calc(100% - 40px); overflow-y: auto;
  padding: 32px 20px calc(24px + env(safe-area-inset-bottom, 0px));
  background: var(--surface); border-radius: var(--radius) var(--radius) 0 0;
  box-shadow: var(--shadow-lg);
  transform: translateY(100%); transition: transform .4s var(--ease);
}
.modal-panel::before {
  content: ""; position: absolute; top: 8px; left: 50%;
  width: 36px; height: 4px; margin-left: -18px; border-radius: 2px;
  background: var(--hairline-2);
}
.modal.is-open .modal-panel { transform: none; }
.modal-close {
  position: absolute; top: 12px; right: 12px;
  width: 40px; height: 40px; display: grid; place-items: center;
  border: 0; border-radius: 12px; background: transparent; color: var(--text-2); cursor: pointer;
}
.modal-close:hover { background: var(--v2-tint); color: var(--text); }
.modal-close svg { width: 18px; height: 18px; }
.modal-icon {
  width: 48px; height: 48px; margin-bottom: 16px; border-radius: 16px;
  display: grid; place-items: center;
  background: var(--primary-soft); color: var(--primary-ink);
}
.modal-icon svg { width: 24px; height: 24px; }
.modal-title { padding-right: 36px; font-size: 20px; font-weight: 600; line-height: 1.4; }
.modal-desc { margin-top: 6px; font-size: 14.5px; line-height: 1.7; color: var(--text-2); }
.modal-form { display: grid; gap: 12px; margin-top: 20px; }
.field { display: grid; gap: 6px; }
.field-label { font-size: 13px; font-weight: 600; }
.input {
  width: 100%; height: 48px; padding: 0 14px; border: 0; border-radius: 12px;
  background: var(--v2-head); color: var(--text);
  box-shadow: inset 0 0 0 1px var(--hairline-2);
  font: inherit; font-size: 16px; outline: none;
  -webkit-appearance: none; appearance: none;
  transition: box-shadow .2s, background-color .2s;
}
.input::placeholder { color: var(--text-2); opacity: .7; }
.input:focus { background: var(--surface); box-shadow: inset 0 0 0 1.5px var(--primary), 0 0 0 4px var(--primary-soft); }
.input[aria-invalid="true"] { box-shadow: inset 0 0 0 1.5px var(--v2-hot); }
.form-msg { min-height: 1.5em; font-size: 13px; line-height: 1.5; color: var(--text-2); }
.form-msg.is-error { color: var(--v2-hot-ink); }
.form-msg.is-ok { color: var(--v2-sage-ink); }
.done { display: grid; justify-items: center; gap: 10px; padding: 12px 0 4px; text-align: center; }
.done-ic {
  width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--v2-sage-soft); color: var(--v2-sage-ink);
}
.done-ic svg { width: 26px; height: 26px; }
.done p { font-size: 14.5px; color: var(--text-2); }
@media (min-width: 640px) {
  .modal { align-items: center; padding: 24px; }
  .modal-panel {
    width: 420px; max-height: calc(100vh - 48px);
    padding: 32px 32px 28px; border-radius: var(--radius);
    opacity: 0; transform: translateY(12px) scale(.97);
    transition: transform .35s var(--ease), opacity .25s;
  }
  .modal.is-open .modal-panel { opacity: 1; }
  .modal-panel::before { display: none; }
}

/* ---------- 提示条：手机上避开悬浮按钮 ---------- */
.toast { bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
@media (min-width: 960px) { .toast { bottom: 32px; } }

/* ---------- 深色模式：插图略微压暗 ---------- */
@media (prefers-color-scheme: dark) {
  .who-media img, .sec-media img { filter: brightness(.92); }
  .who-media, .how-banner.is-flow { background: #2A251F; }
}