/* site.css — 全站布局、导航、页脚、子页面（试用/咨询合作/关于） */

.layout.layout--site {
  background: #000;
  color: #e0e0e0;
}

.layout.layout--site,
.page--home {
  --page-max: 1200px;
}

.lp-container {
  width: 100%;
  max-width: var(--page-max);
  margin: 0 auto;
  padding-left: var(--page-gutter);
  padding-right: var(--page-gutter);
  box-sizing: border-box;
}

/* ── 导航 ── */
.nav--landing {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
  background: rgba(0, 0, 0, 0.88);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-logo-text {
  margin-left: 0.65rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}

.nav-center-wrap {
  display: contents;
}

.nav-center {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.35rem 1.5rem;
}

.nav-center a {
  position: relative;
  color: #aaa;
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.15s ease;
}

.nav-center a:hover,
.nav-center a.active {
  color: var(--color-primary);
}

.nav-center a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.65rem;
  height: 2px;
  border-radius: 999px;
  background: var(--color-primary);
}

.nav-actions {
  display: flex;
  gap: 0.6rem;
  flex-shrink: 0;
}

.nav-actions .btn-primary.active {
  box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), 0.55), 0 12px 30px rgba(var(--color-primary-rgb), 0.16);
}

.nav-actions .btn-secondary.active {
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.08);
  border-color: rgba(var(--color-primary-rgb), 0.55);
  box-shadow: 0 0 0 1px rgba(var(--color-primary-rgb), 0.25);
}

.btn-sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.8125rem;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
  box-sizing: border-box;
}

.btn-dark {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: #141414;
  background: rgba(0, 0, 0, 0.75);
  text-decoration: none;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.btn-dark:hover {
  background: #000;
  color: var(--color-primary);
}

/* ── 区块标题 ── */
.lp-section-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  color: #fff;
  text-align: center;
}

.lp-section-title--left {
  text-align: left;
}

.lp-section-desc {
  margin: 0 auto 2rem;
  max-width: 640px;
  text-align: center;
  font-size: 0.9rem;
  line-height: 1.65;
  color: #9a9a9a;
}

.lp-eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #7a7a7a;
}

/* ── 子页面 ── */
.page--sub {
  padding-bottom: 0;
}

.sp-hero {
  position: relative;
  padding: 3.25rem 0 2.5rem;
  overflow: hidden;
}

.sp-hero::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: min(720px, 130vw);
  height: 220px;
  background: url("../img/hero-deco.svg") no-repeat center top;
  background-size: contain;
  opacity: 0.35;
  pointer-events: none;
}

.sp-hero::after {
  content: "";
  position: absolute;
  inset: -30% 0 auto;
  height: 60%;
  background: radial-gradient(ellipse 50% 45% at 50% 0%, rgba(var(--color-primary-rgb), 0.1), transparent 70%);
  pointer-events: none;
}

.sp-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.sp-hero-inner--wide {
  max-width: var(--page-max);
}

.sp-hero--about {
  padding: 4rem 0 3.25rem;
}

.sp-hero--about .sp-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 390px);
  align-items: center;
  gap: 2.5rem;
  text-align: left;
}

.sp-hero--about .sp-hero-actions {
  justify-content: flex-start;
}

.sp-hero-copy {
  max-width: 680px;
}

.sp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.sp-hero-facts {
  display: grid;
  gap: 0.85rem;
}

.sp-fact-item {
  padding: 1.1rem 1.15rem;
  border-radius: 14px;
  border: 1px solid rgba(var(--color-primary-rgb), 0.14);
  background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.085) 0%, rgba(255, 255, 255, 0.03) 100%);
}

.sp-fact-item strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-primary);
}

.sp-fact-item span {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: #9a9a9a;
}

.sp-hero-title {
  margin: 0 0 0.85rem;
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.sp-hero-desc {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: #999;
}

.sp-section {
  padding: 2.75rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.sp-section--alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02) 0%, transparent 100%);
}

.sp-intro {
  margin: 0 auto;
  max-width: 680px;
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.75;
  color: #aaa;
}

.sp-intro--left {
  max-width: 620px;
  margin: 0;
  text-align: left;
}

.sp-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  align-items: start;
  gap: 2rem;
}

.sp-problem-card {
  padding: 1.35rem 1.25rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.sp-problem-card h3 {
  margin: 0 0 0.6rem;
  font-size: 1rem;
  color: #fff;
}

.sp-pill-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.sp-pill {
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  color: #c4c4c4;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.sp-values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 0.5rem;
}

.sp-values-grid--four {
  grid-template-columns: repeat(4, 1fr);
}

.sp-value-card {
  padding: 1.5rem 1.25rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s ease;
}

.sp-card-index {
  display: inline-block;
  margin-bottom: 0.75rem;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-primary);
}

.sp-value-card:hover {
  border-color: rgba(var(--color-primary-rgb), 0.22);
}

.sp-value-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.sp-value-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: #9a9a9a;
}

.sp-link-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 0.5rem;
}

.sp-link-grid--four {
  grid-template-columns: repeat(4, 1fr);
}

.sp-link-card {
  display: block;
  padding: 1.15rem 1rem;
  border-radius: 12px;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.sp-link-card:hover {
  border-color: rgba(var(--color-primary-rgb), 0.25);
  transform: translateY(-2px);
}

.sp-link-card h3 {
  margin: 0 0 0.3rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
}

.sp-link-card p {
  margin: 0;
  font-size: 0.75rem;
  color: #8a8a8a;
}

.sp-link-card .sp-link-arrow {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-primary);
}

/* ── 子页面：试用 / 咨询合作 ── */
.page--trial #trial-form,
.page--contact #wechat-contact {
  scroll-margin-top: 5.5rem;
}

.page--contact .sp-hero + .sp-section {
  padding-top: 2rem;
}

.page--trial .sp-section--alt {
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

.sp-email-panel {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  align-items: stretch;
}

.sp-email-card {
  text-align: center;
  padding: 2rem 1.5rem;
  border-radius: 14px;
  border: 1px solid rgba(var(--color-primary-rgb), 0.2);
  background: linear-gradient(165deg, rgba(var(--color-primary-rgb), 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  box-sizing: border-box;
}

.sp-email-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.1);
  border: 1px solid rgba(var(--color-primary-rgb), 0.18);
}

.sp-email-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.sp-email-link {
  display: inline-block;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  word-break: break-all;
}

.sp-email-link:hover {
  color: var(--color-primary-gradient-end);
}

.sp-email-hint {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  color: #8a8a8a;
  line-height: 1.55;
  max-width: 26rem;
  margin-top: auto;
  padding-top: 0.75rem;
}

.sp-qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sp-qr-img {
  width: min(220px, 100%);
  height: auto;
  margin-top: 0.5rem;
  padding: 0.5rem;
  border-radius: 12px;
  background: #fff;
  border: 1px solid rgba(var(--color-primary-rgb), 0.25);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.26);
}

.sp-map-wrap {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.4);
}

.sp-map {
  width: 100%;
  height: min(52vw, 400px);
  min-height: 280px;
  background: #1a1a1a;
}

.sp-map.leaflet-container {
  font-family: inherit;
  z-index: 1;
}

.sp-map-attrib {
  margin: 0.6rem 0 0;
  font-size: 0.72rem;
  color: #5c5c5c;
  text-align: center;
}

.sp-map-attrib a {
  color: #8a8a8a;
  text-decoration: none;
}

.sp-map-attrib a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.sp-offices-title {
  margin: 1.5rem 0 0.85rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #5a5a5a;
  text-align: center;
}

.sp-loc-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
}

.sp-loc-cell {
  padding: 0.9rem 1rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: border-color 0.2s ease;
}

.sp-loc-cell:hover {
  border-color: rgba(var(--color-primary-rgb), 0.18);
}

.sp-loc-city {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: #ededed;
  margin-bottom: 0.3rem;
}

.sp-loc-meta {
  display: block;
  font-size: 0.75rem;
  line-height: 1.45;
  color: #6f6f6f;
}

.sp-checklist {
  list-style: none;
  margin: 0.5rem auto 0;
  padding: 0;
  max-width: 640px;
}

.sp-checklist--compact {
  margin-top: 0.3rem;
}

.sp-checklist li {
  position: relative;
  padding: 0.65rem 0 0.65rem 1.35rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: #9a9a9a;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.sp-checklist--compact li {
  padding-top: 0.48rem;
  padding-bottom: 0.48rem;
  font-size: 0.84rem;
}

.sp-checklist a {
  color: var(--color-primary);
  text-decoration: none;
}

.sp-checklist a:hover {
  text-decoration: underline;
}

.sp-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}

.sp-process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.sp-process-step {
  position: relative;
  min-height: 190px;
  padding: 1.35rem 1.1rem;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.sp-process-step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  opacity: 0.8;
}

.sp-process-step span {
  display: block;
  margin-bottom: 1.5rem;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-primary);
}

.sp-process-step h3 {
  margin: 0 0 0.55rem;
  font-size: 1rem;
  color: #fff;
}

.sp-process-step p {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: #9a9a9a;
}

.lp-section-desc a {
  color: var(--color-primary);
  text-decoration: none;
}

.lp-section-desc a:hover {
  text-decoration: underline;
}

.lp-banner-actions {
  gap: 0.75rem;
}

.btn-dark--outline {
  background: transparent;
  color: #141414;
  border: 1px solid rgba(0, 0, 0, 0.35);
  box-shadow: none;
}

.btn-dark--outline:hover {
  background: rgba(0, 0, 0, 0.08);
  color: #000;
}

/* ── 底部黄条 CTA ── */
.lp-banner-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-gradient-end) 100%);
  padding: 2.5rem 0;
}

.lp-banner-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.lp-banner-copy h2 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  font-weight: 700;
  color: #141414;
}

.lp-banner-copy p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(0, 0, 0, 0.65);
}

.lp-banner-copy a {
  color: #1a5c00;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.lp-banner-contact {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.65rem;
}

.lp-banner-email {
  font-size: 1.125rem;
  font-weight: 700;
  color: #141414;
  text-decoration: none;
}

.lp-banner-email:hover {
  color: var(--color-primary-on-light);
  text-decoration: underline;
}

.page--sub .lp-banner-cta {
  margin-top: 0;
}

/* ── 页脚 ── */
.footer--landing {
  text-align: left;
  background: #0a0a0a;
  border-top: none;
  padding-top: 3rem;
  padding-bottom: 0;
}

.footer-landing-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

.footer-logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.65rem;
}

.footer-brand-desc {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #666;
  max-width: 280px;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.footer-col h4 {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
}

.footer-col a {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.8125rem;
  color: #9a9a9a;
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--color-primary);
}

.footer-col-text {
  display: block;
  font-size: 0.8125rem;
  color: #9a9a9a;
  line-height: 1.5;
}

.footer-col-text--sub {
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: #8a8a8a;
}

/* ── 免费试用表单 ── */
.trial-form-card {
  max-width: 560px;
  margin: 0 auto;
  padding: 1.75rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  box-sizing: border-box;
}

.trial-form-grid {
  display: grid;
  gap: 1.15rem;
}

.trial-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin: 0;
}

.trial-field--full {
  grid-column: 1 / -1;
}

.trial-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #d0d0d0;
}

.trial-label em {
  color: var(--color-primary);
  font-style: normal;
}

.trial-input {
  width: 100%;
  padding: 0.72rem 0.9rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  font-size: 0.9375rem;
  box-sizing: border-box;
}

.trial-input::placeholder {
  color: #666;
}

.trial-input:focus {
  outline: none;
  border-color: rgba(var(--color-primary-rgb), 0.55);
  box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), 0.15);
}

.trial-input:focus-visible {
  outline: 2px solid rgba(var(--color-primary-rgb), 0.7);
  outline-offset: 2px;
}

.trial-input:-webkit-autofill,
.trial-input:-webkit-autofill:hover,
.trial-input:-webkit-autofill:focus {
  -webkit-text-fill-color: #fff;
  -webkit-box-shadow: 0 0 0 1000px #1a1a1a inset;
  box-shadow: 0 0 0 1000px #1a1a1a inset;
  transition: background-color 99999s ease-out;
}

.trial-code-row {
  display: flex;
  align-items: stretch;
  gap: 0.6rem;
}

.trial-code-row .trial-input {
  flex: 1;
  min-width: 0;
}

.trial-send-btn {
  flex-shrink: 0;
  align-self: stretch;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1rem;
  white-space: nowrap;
  min-height: 46px;
}

.trial-form-msg {
  min-height: 1.35rem;
  margin: 0.85rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: #9a9a9a;
}

.trial-form-msg--error {
  color: #f5a623;
}

.trial-form-msg--success {
  color: var(--color-primary);
}

.trial-form-msg--info {
  color: #9a9a9a;
}

.trial-form-success {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.5;
}

.trial-submit-btn {
  width: 100%;
  margin-top: 1rem;
  min-height: 46px;
  border: none;
  cursor: pointer;
  box-sizing: border-box;
}

.trial-form--done .trial-input,
.trial-form--done .trial-send-btn {
  opacity: 0.55;
  pointer-events: none;
}

.trial-form-note {
  margin: 0.85rem 0 0;
  font-size: 0.75rem;
  color: #8a8a8a;
  line-height: 1.5;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1.25rem var(--page-gutter) 2rem;
  text-align: center;
}

.footer-bottom .footer-copy,
.footer-bottom .footer-icp {
  margin: 0;
}

/* ── 响应式 ── */
@media (min-width: 768px) and (max-width: 1023px) {
  .sp-values-grid--four {
    grid-template-columns: repeat(2, 1fr);
  }

  .sp-link-grid--four {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .nav--landing {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
  }

  .nav-logo {
    grid-column: 1;
  }

  .nav-actions {
    grid-column: 2;
    grid-row: 1;
  }

  .nav-center-wrap {
    display: block;
    grid-column: 1 / -1;
    grid-row: 2;
    position: relative;
    margin: 0 calc(-1 * var(--page-gutter));
    padding: 0 var(--page-gutter);
  }

  .nav-center-wrap::after {
    content: "";
    position: absolute;
    top: 0;
    right: var(--page-gutter);
    bottom: 0.25rem;
    width: 2.5rem;
    background: linear-gradient(to right, transparent, rgba(0, 0, 0, 0.92));
    pointer-events: none;
  }

  .nav-center {
    grid-column: unset;
    grid-row: unset;
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 0.25rem;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }

  .nav-center::-webkit-scrollbar {
    display: none;
  }

  .nav-center a {
    scroll-snap-align: start;
    flex-shrink: 0;
  }

  .nav-logo-text {
    display: none;
  }

  .footer-landing-inner {
    grid-template-columns: 1fr;
  }

  .sp-values-grid,
  .sp-values-grid--four {
    grid-template-columns: 1fr;
  }

  .sp-link-grid,
  .sp-link-grid--four {
    grid-template-columns: 1fr;
  }

  .sp-hero--about .sp-hero-actions {
    justify-content: center;
  }

  .sp-hero--about .sp-hero-inner,
  .sp-split {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .lp-section-title--left,
  .sp-intro--left {
    text-align: center;
  }

  .sp-process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .lp-banner-inner {
    flex-direction: column;
    text-align: center;
  }

  .lp-banner-contact {
    align-items: center;
  }

  .sp-email-panel {
    grid-template-columns: 1fr;
  }

  .trial-form-card {
    padding: 1.25rem 1rem;
  }

  .trial-code-row {
    flex-direction: column;
    align-items: stretch;
  }

  .trial-send-btn {
    width: 100%;
    min-height: 44px;
  }

  .page--trial .sp-hero,
  .page--contact .sp-hero {
    padding-top: 2.5rem;
  }

  .footer-cols {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .nav-actions .btn-secondary {
    display: none;
  }

  /* 当前页为咨询合作时，保留次按钮高亮（否则小屏无法感知所在页） */
  .nav-actions .btn-secondary.active {
    display: inline-flex;
    align-items: center;
  }

  .sp-process-grid {
    grid-template-columns: 1fr;
  }

  .sp-hero--about {
    padding-top: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sp-link-card,
  .sp-value-card {
    transition: none;
  }

  .sp-link-card:hover {
    transform: none;
  }
}