#lower-content {
  --lower-paper: #fafafa;
  --lower-edge: #f7f7f7;
  --lower-shadow: 0 2px 4px rgba(108, 113, 128, .08), 0 7px 7px rgba(108, 113, 128, .07), 0 17px 10px rgba(108, 113, 128, .04), 0 29px 12px rgba(108, 113, 128, .01);
  --lower-serif: "Source Serif 4", "Source Serif", "Songti SC", "Noto Serif CJK SC", Georgia, serif;
  color: var(--ink, #0d0d0d);
  width: 100%;
}

#lower-content *, #lower-content *::before, #lower-content *::after { box-sizing: border-box; }
#lower-content :is(h2, h3, p, figure, ul) { margin: 0; }
#lower-content button { color: inherit; font: inherit; }
#lower-content a { color: inherit; text-decoration: none; }
#lower-content button, #lower-content summary { cursor: pointer; }
#lower-content button:disabled { cursor: default; }
#lower-content em { font-family: var(--lower-serif); font-weight: 600; }
#lower-content :focus-visible { outline: 2px solid #5766b5; outline-offset: 4px; }

.lower-section { width: 100%; padding-inline: 36px; scroll-margin-top: 90px; }
.lower-heading { display: grid; justify-items: center; gap: 24px; text-align: center; }
.lower-heading h2 {
  font-size: clamp(34px, 4.1vw, 56px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -.071em;
  margin-inline: auto;
  max-width: 600px;
}
.lower-heading h2 em { letter-spacing: -.06em; }
.lower-pill {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  justify-content: center;
  border-radius: 100vw;
  padding: 6px 16px;
  background: #fff;
  color: #111;
  white-space: nowrap;
  font-size: 16px;
  font-weight: 600;
  line-height: 19px;
  letter-spacing: -.045em;
}
.lower-panel { border: 6px solid var(--lower-edge); background: var(--lower-paper); box-shadow: var(--lower-shadow); }
.lower-action {
  border: 0;
  min-height: 56px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 0 30px;
  border-radius: 100vw;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -.04em;
  transition: transform .22s, background-color .22s;
}
#lower-content .lower-action { font-weight: 600; }
#lower-content .lower-action-light { color: #111; background: #fafafa; }
#lower-content .lower-action-light:hover { background: #e9e9e9; }
#lower-content .lower-action-dark { color: #fff; background: #0c0c0c; }
#lower-content .lower-action-dark:hover { background: #343434; }
.lower-action:hover { transform: translateY(-2px); }
.lower-action:active { transform: translateY(0); }

.lower-features { display: grid; gap: 48px; justify-items: center; padding-block: 80px; }
.lower-feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; width: min(100%, 932px); }
.lower-feature {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 32px;
  min-height: 168px;
  border-radius: 16px;
  padding: 18px;
}
.lower-feature svg { height: 38px; width: 38px; fill: currentColor; }
.lower-feature h3 { font-size: 18px; line-height: 1.35; font-weight: 600; letter-spacing: -.045em; }
.lower-feature p { color: #777; margin-top: 4px !important; font-size: 14px; line-height: 1.45; letter-spacing: -.025em; }
.lower-ticker {
  width: min(100%, 932px);
  overflow: hidden;
  margin-top: 16px;
  mask-image: linear-gradient(90deg, transparent, #000 11%, #000 89%, transparent);
}
.lower-ticker-track { display: flex; width: max-content; animation: lower-tick 40s linear infinite; }
.lower-ticker-set { display: flex; align-items: center; gap: 16px; padding-right: 16px; }
.lower-ticker-set .lower-pill { font-size: 18px; }
.lower-ticker:hover .lower-ticker-track { animation-play-state: paused; }
@keyframes lower-tick { to { transform: translateX(-50%); } }

.lower-scenarios {
  display: grid;
  justify-items: center;
  gap: 64px;
  padding-block: 48px 40px;
  overflow: hidden;
}
.lower-carousel { width: min(100%, 1128px); }
.lower-carousel-track {
  display: flex;
  gap: 16px;
  overflow: auto hidden;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding: 0 0 26px;
}
.lower-carousel-track::-webkit-scrollbar { display: none; }
.lower-case {
  position: relative;
  flex: 0 0 calc((100% - 32px) / 3);
  scroll-snap-align: start;
  border-radius: 16px;
  padding: 18px;
  min-height: 224px;
}
.lower-case-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--case-tint);
  font-size: 25px;
  color: #333;
}
.lower-case-mark { position: absolute; top: 0; right: 18px; color: #e9e9e9; font: 600 78px/1.25 var(--lower-serif); }
.lower-case h3 { font-size: 16px; line-height: 1.35; font-weight: 600; letter-spacing: -.03em; }
.lower-case p { color: #767676; font-size: 14px; line-height: 1.55; margin-top: 12px !important; }
.lower-case p.lower-case-subtitle { margin-top: 4px !important; color: #8a8a8a; font-size: 12px; }
.lower-carousel-controls { display: flex; justify-content: center; align-items: center; gap: 12px; margin-top: 16px; }
.lower-carousel-dots { display: flex; align-items: center; gap: 10px; border-radius: 100vw; padding: 10px; background: #ddd; }
.lower-carousel-dots button { border: 0; padding: 0; width: 10px; height: 10px; border-radius: 50%; background: #ececec; }
.lower-carousel-dots button[aria-pressed="true"] { background: #fff; box-shadow: 0 0 0 1px #d1d1d1; }
.lower-carousel-arrow { border: 0; border-radius: 50%; background: var(--lower-paper); width: 32px; height: 32px; padding: 6px; opacity: 0; transition: opacity .2s, background-color .2s; }
.lower-carousel-arrow svg { width: 20px; height: 20px; }
.lower-carousel:hover .lower-carousel-arrow, .lower-carousel:focus-within .lower-carousel-arrow { opacity: 1; }
.lower-carousel-arrow:hover { background: #e5e5e5; }

.lower-pricing { padding-block: 72px 40px; scroll-margin-top: 90px; }
.lower-pricing-shell {
  display: grid;
  grid-template-columns: 2fr 2.96fr;
  align-items: stretch;
  gap: 16px;
  margin: 0 auto;
  max-width: 1128px;
  padding: 10px;
  border-radius: 24px;
  background: #121212;
  color: #fff;
}
.lower-pricing-visual {
  position: relative;
  min-height: 480px;
  isolation: isolate;
  overflow: hidden;
  border-radius: 16px;
  background: radial-gradient(ellipse at 20% 30%, #5c421b, #141414 65%);
}
.lower-pricing-track {
  position: absolute;
  inset: 0;
  height: 100%;
  animation: lower-pricing-tick 20s linear infinite;
}
.lower-pricing-visual:hover .lower-pricing-track { animation-play-state: paused; }
.lower-pricing-track figure { width: 100%; height: 100%; position: relative; overflow: hidden; container-type: size; background: #141414; }
.lower-creative-image { position: absolute; width: max(100cqw, 100cqh); aspect-ratio: 1; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.lower-pricing-track img { width: 100%; height: 100%; display: block; }
.lower-creative-copy { position: absolute; display: grid; align-content: center; gap: 3px; z-index: 1; color: #fff; background: #000; }
.lower-creative-copy span { color: #c1c1c1; font: 500 clamp(5px, 1.5cqw, 8px)/1.2 Inter, sans-serif; }
.lower-creative-copy strong { font-size: clamp(7px, 3.15cqw, 15px); font-weight: 600; line-height: 1.12; letter-spacing: -.035em; }
.lower-creative-copy small { color: #aaa; font-size: clamp(5px, 1.45cqw, 7px); line-height: 1.25; }
.lower-creative-1 .lower-creative-copy { inset: 28% 34% 59% 34%; text-align: center; }
.lower-creative-2 .lower-creative-copy { inset: 51% 66% 37% 16.7%; }
.lower-creative-2 .lower-creative-copy strong { font-size: clamp(6px, 2.35cqw, 11px); }
.lower-creative-3 .lower-creative-copy { inset: 24.85% 25% 57.5% 25%; text-align: center; }
.lower-creative-3::after { content: "审批面板"; display: grid; place-items: center; position: absolute; inset: 61% 41% 32% 40%; background: #081324; color: #fff; font-size: clamp(6px, 2cqw, 10px); }
.lower-creative-4 .lower-creative-copy { inset: 25% 49.5% 54.5% 25%; background: #111; }
.lower-creative-4::after { content: "REVIEW · 成效复盘"; display: grid; place-items: center; position: absolute; inset: 54% 27% 25% 27%; color: #bbb; background: #000; font: 500 clamp(7px, 2.8cqw, 13px)/1.2 Inter, sans-serif; }
.lower-pricing-track figcaption { position: absolute; left: 12px; right: 12px; bottom: 17px; color: #fff9; font-size: 12px; text-align: center; }
@keyframes lower-pricing-tick { to { transform: translateY(-400%); } }
.lower-pricing-content { min-width: 0; background: #282828; border-radius: 16px; padding: 32px; display: flex; flex-direction: column; }
.lower-pricing-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.lower-wordmark { width: max-content; display: inline-block; font: italic 600 40px/.95 var(--lower-serif); letter-spacing: -.09em; white-space: nowrap; }
.lower-wordmark sup { vertical-align: top; position: relative; top: 2px; font: normal 600 9px/1.4 Inter, sans-serif; letter-spacing: -.04em; margin-left: 3px; }
.lower-pricing-intro p { margin-top: 16px !important; max-width: 350px; color: #aaa; font-size: 14px; line-height: 1.55; }
.lower-switch-box { display: grid; flex-shrink: 0; justify-items: end; gap: 6px; white-space: nowrap; font-size: 16px; letter-spacing: -.035em; font-weight: 600; }
.lower-switch-box small { color: #aaa; font-size: 14px; font-weight: 400; }
.lower-switch { border: 0; width: 52px; height: 30px; border-radius: 16px; background: #fafafa; padding: 4px; margin-top: 6px; }
.lower-switch::before { display: block; content: ""; width: 22px; height: 22px; background: #282828; border-radius: 50%; transition: transform .23s, background-color .23s; }
.lower-switch[aria-checked="true"] { background: #c4dfc9; }
.lower-switch[aria-checked="true"]::before { transform: translateX(22px); }
.lower-price-display { margin-top: 22px; line-height: 1.18; }
.lower-price-display strong { font-size: clamp(34px, 3.5vw, 42px); font-weight: 600; letter-spacing: -.075em; }
.lower-price-scope { color: #999; font-size: 16px; white-space: nowrap; }
.lower-plan-list { display: grid; gap: 18px; padding: 0; margin-block: 30px 34px !important; list-style: none; }
.lower-plan-list li { display: flex; align-items: center; gap: 10px; font-size: 16px; font-weight: 600; letter-spacing: -.025em; }
.lower-plan-list li::before { content: "+"; display: grid; place-items: center; width: 18px; height: 18px; flex: 0 0 18px; border-radius: 50%; background: #eee; color: #282828; font: 600 14px/1 Inter, sans-serif; }
.lower-pricing-content .lower-action { margin-top: auto; width: 100%; }

.lower-blog { display: grid; justify-items: center; gap: 48px; padding-block: 80px 40px; }
.lower-blog-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 16px; width: min(100%, 1200px); }
.lower-article { display: flex; flex-direction: column; min-width: 0; overflow: hidden; border-radius: 24px; transition: transform .24s, box-shadow .24s; }
.lower-article:hover { transform: translateY(-4px); box-shadow: 0 13px 20px #43434320; }
.lower-article-wide { display: grid; grid-column: 1 / -1; grid-template-columns: 48% 52%; min-height: 468px; }
.lower-article-image { position: relative; width: 100%; isolation: isolate; }
.lower-article:not(.lower-article-wide) .lower-article-image { aspect-ratio: 1.24; }
.lower-article-image img { display: block; width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.lower-article-image::after { position: absolute; inset: 0; background: linear-gradient(0deg, var(--lower-paper), transparent 42%); content: ""; pointer-events: none; }
.lower-article-image > .lower-pill { position: absolute; z-index: 1; top: 16px; right: 16px; padding: 4px 12px; font-size: 14px; line-height: 17px; }
.lower-article-text { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; min-width: 0; padding: 16px; }
.lower-article-wide .lower-article-text { padding: 30px 12px 16px 32px; }
.lower-article-text h3 { font-size: 20px; line-height: 1.4; letter-spacing: -.055em; font-weight: 600; }
.lower-article-wide h3 { font-size: clamp(26px, 3vw, 42px); line-height: 1.15; letter-spacing: -.07em; }
.lower-article-text p { font-size: 16px; color: #767676; line-height: 1.55; letter-spacing: -.035em; }
.lower-article-wide .lower-article-text p { font-size: 18px; }
.lower-article-meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; width: 100%; margin-top: auto; padding-top: 24px; font-size: 12px; }
.lower-article-author { font: italic 600 24px/1 var(--lower-serif); letter-spacing: -.065em; }
.lower-article-author sup { font: normal 600 8px/1 Inter, sans-serif; vertical-align: super; }
.lower-article-text > .lower-pill { background: #f0f0f0; }

.lower-faq { display: grid; justify-items: center; padding-block: 112px 120px; }
.lower-faq-panel { width: min(100%, 588px); display: grid; justify-items: start; gap: 32px; border-radius: 24px; padding: 42px; }
.lower-faq-panel > .lower-pill { background: #f0f0f0; }
.lower-faq-panel h2 { font-size: clamp(32px, 3.3vw, 42px); font-weight: 600; line-height: 1.16; letter-spacing: -.065em; }
.lower-faq-contact { display: flex; justify-content: space-between; gap: 16px; align-items: center; width: 100%; }
.lower-faq-contact p { font-size: 14px; color: #777; margin-bottom: 6px !important; }
.lower-faq-contact strong { font-size: 16px; font-weight: 600; letter-spacing: -.04em; }
.lower-faq-list { display: grid; gap: 8px; width: 100%; }
.lower-faq-item { width: 100%; padding: 0 16px; border-radius: 12px; background: #f0f0f0; }
.lower-faq-item summary { display: flex; justify-content: space-between; gap: 12px; align-items: center; list-style: none; min-height: 64px; font-size: 16px; font-weight: 600; letter-spacing: -.035em; }
.lower-faq-item summary::-webkit-details-marker { display: none; }
.lower-faq-plus { display: grid; place-items: center; position: relative; flex: 0 0 32px; height: 32px; border-radius: 50%; background: #eaeaea; }
.lower-faq-plus::before, .lower-faq-plus::after { content: ""; position: absolute; width: 13px; height: 1.5px; border-radius: 2px; background: #373737; transition: transform .2s; }
.lower-faq-plus::after { transform: rotate(90deg); }
.lower-faq-item[open] .lower-faq-plus::after { transform: rotate(0); }
.lower-faq-item p { color: #676767; font-size: 14px; line-height: 1.75; padding-bottom: 17px; }

.lower-footer { background: #000; color: #fff; padding: 40px 36px; }
.lower-footer-inner { max-width: 1200px; margin-inline: auto; }
.lower-footer-main { display: grid; grid-template-columns: 2fr 1fr; gap: 0; align-items: start; }
.lower-footer-message { padding-right: 38px; display: grid; gap: 30px; justify-items: start; }
.lower-footer-message .lower-wordmark { font-size: 32px; }
.lower-footer-message h2 { font-size: clamp(48px, 6.5vw, 86px); font-weight: 600; line-height: 1.06; letter-spacing: -.078em; }
.lower-footer-message p { color: #858585; font-size: 20px; letter-spacing: -.045em; line-height: 1.4; max-width: 580px; }
.lower-footer-bottom { display: flex; gap: 18px; align-items: center; justify-content: space-between; color: #858585; padding-top: 36px; font-size: 14px; letter-spacing: -.03em; }
.lower-footer-bottom nav { display: flex; align-items: center; gap: 24px; }
.lower-footer-bottom a:hover { color: #fff !important; }

.lower-inquiry {
  min-width: 0;
  padding: 24px;
  background: #171717;
  border: 1px solid #2b2b2b;
  border-radius: 8px;
  scroll-margin-top: 90px;
}
.lower-inquiry-intro { margin-bottom: 20px; }
.lower-inquiry-intro h3 { font-size: 23px; font-weight: 600; letter-spacing: -.045em; }
.lower-inquiry-intro p { margin-top: 5px !important; color: #b0b0b0; font-size: 14px; }
.lower-inquiry-form, .lower-inquiry-form fieldset, .lower-inquiry-result { display: grid; gap: 14px; }
.lower-inquiry-form fieldset { min-width: 0; padding: 0; border: 0; margin: 0; }
.lower-inquiry-form label { display: grid; gap: 6px; font-size: 14px; }
.lower-inquiry-form :is(input, textarea) {
  width: 100%;
  min-height: 44px;
  border: 1px solid #494949;
  border-radius: 7px;
  background: #101010;
  color: #fff;
  padding: 10px 12px;
  font: inherit;
  font-size: 16px;
  line-height: 1.45;
  color-scheme: dark;
}
.lower-inquiry-form :is(input, textarea)::placeholder { color: #a0a0a0; }
.lower-inquiry-form textarea { min-height: 90px; resize: vertical; }
.lower-inquiry-form .lower-inquiry-trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.lower-inquiry-form .lower-action { min-height: 48px; gap: 8px; }
.lower-inquiry-form .lower-action:disabled { opacity: .65; transform: none; }
.lower-inquiry-form small, .lower-inquiry-result p { color: #aaa; font-size: 13px; line-height: 1.6; }
.lower-inquiry-error { color: #ffb5b5; font-size: 14px; line-height: 1.5; }
.lower-inquiry-result h4 { margin: 0; font-size: 21px; }

@media (max-width: 1199px) {
  .lower-section { padding-inline: 24px; }
  .lower-pricing-shell { max-width: 810px; grid-template-columns: 1fr; }
  .lower-pricing-visual { order: 2; min-height: 380px; }
  .lower-article-wide { min-height: 400px; }
  .lower-footer-main { grid-template-columns: 1.5fr 1fr; gap: 24px; }
  .lower-footer-message { padding-right: 0; }
}
@media (max-width: 809px) {
  .lower-heading { gap: 20px; }
  .lower-heading h2 { letter-spacing: -.062em; }
  .lower-feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lower-feature { gap: 22px; min-height: 148px; padding: 12px; }
  .lower-feature h3 { font-size: 16px; }
  .lower-feature p { font-size: 13px; }
  .lower-scenarios { gap: 40px; padding-top: 36px; }
  .lower-carousel { max-width: 440px; }
  .lower-case { flex-basis: 100%; min-height: 210px; }
  .lower-case[aria-hidden="true"] { display: none; }
  .lower-carousel-arrow { opacity: 1; }
  .lower-pricing { padding-top: 48px; }
  .lower-pricing-content { padding: 20px; }
  .lower-pricing-visual { min-height: 0; aspect-ratio: 1.26; }
  .lower-blog-grid { grid-template-columns: 1fr; gap: 20px; }
  .lower-article { display: flex; min-height: 0; }
  .lower-article .lower-article-image { aspect-ratio: 1.35; }
  .lower-article-wide .lower-article-text { padding: 16px; }
  .lower-article-meta { padding-top: 8px; }
  .lower-faq { padding-block: 76px 92px; }
  .lower-faq-panel { padding: 28px 18px 18px; gap: 24px; }
  .lower-faq-contact .lower-action { min-height: 48px; padding-inline: 18px; font-size: 16px; flex-shrink: 0; }
  .lower-footer { padding-inline: 24px; }
  .lower-footer-main { grid-template-columns: 1fr; gap: 38px; }
  .lower-inquiry { max-width: 440px; width: 100%; padding: 20px; }
  .lower-footer-bottom { align-items: flex-start; flex-direction: column; }
  .lower-footer-message p { font-size: 18px; }
}
@media (max-width: 379px) {
  .lower-section, .lower-footer { padding-inline: 16px; }
  .lower-feature-grid { gap: 10px; }
  .lower-pricing-content { padding: 16px; }
  .lower-pricing-top { gap: 10px; }
  .lower-switch-box { font-size: 14px; }
  .lower-footer-bottom nav { gap: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .lower-ticker-track, .lower-pricing-track { animation: none; }
  .lower-action, .lower-article, .lower-switch::before, .lower-faq-plus::after { transition: none; }
}