/* 新增元素的补充样式。与 styles.css 并存，不修改原有样式。 */

.hero-visual {
  position: relative;
}

.demo-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 5;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(16, 23, 36, 0.78);
  color: #fff;
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  pointer-events: none;
}

.consent-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 4px 0 14px;
  font-size: 14px;
  line-height: 1.5;
  color: inherit;
  cursor: pointer;
}

.consent-row input[type="checkbox"] {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: #101724;
}

/* 页脚：品牌行 + 四栏信息 + 备案 */
.site-footer {
  display: flex !important;
  flex-direction: column;
  grid-template-columns: none !important;
  align-items: stretch;
  gap: 0;
  row-gap: 0;
}

.footer-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 18px;
  min-height: 0;
}

.footer-aside {
  margin-left: auto;
  color: var(--muted, #667085);
  font-size: 14px;
  text-align: right;
  white-space: nowrap;
}

.footer-top .footer-brand {
  flex: 0 0 auto;
}

.site-footer .footer-tagline {
  display: block;
  margin: 0;
  padding-left: 18px;
  border-left: 1px solid rgba(16, 23, 36, 0.16);
  color: var(--muted, #667085);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px 28px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(16, 23, 36, 0.12);
}

.footer-facts {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px 0;
  margin: 0;
  padding: 0;
  border-top: 0;
}

.footer-facts > div {
  display: grid;
  gap: 6px;
  padding: 0 22px;
  border-left: 1px solid rgba(16, 23, 36, 0.12);
}

.footer-facts > div:first-child {
  padding-left: 0;
  border-left: 0;
}

.footer-facts dt {
  margin: 0;
  font-size: 14px;
  opacity: 0.55;
}

.footer-facts dd {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
}

.footer-facts dd span {
  margin-left: 8px;
  font-size: 14px;
  font-weight: 400;
  opacity: 0.55;
}

.footer-facts a,
.footer-company a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-facts a {
  border-bottom: 1px solid rgba(16, 23, 36, 0.3);
}

.footer-facts a:hover,
.footer-company a:hover {
  color: #2b59ff;
}

.footer-company a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-company {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: flex-end;
  margin-top: 0;
  font-size: 14px;
  opacity: 0.6;
  white-space: nowrap;
}

.footer-company a + a::before {
  content: "·";
  display: inline-block;
  margin: 0 10px;
}

@media (max-width: 860px) {
  .footer-bottom {
    flex-direction: column;
    align-items: stretch;
  }

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

  .footer-facts > div:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .footer-facts > div:nth-child(even) {
    padding-left: 22px;
    border-left: 1px solid rgba(16, 23, 36, 0.12);
  }

  .footer-company {
    justify-content: flex-start;
    flex-wrap: wrap;
    white-space: normal;
  }
}

@media (max-width: 520px) {
  .footer-tagline {
    width: 100%;
    padding-left: 0;
    border-left: 0;
  }

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

  .footer-facts > div,
  .footer-facts > div:nth-child(even) {
    padding: 0;
    border-left: 0;
  }
}

/* 合作客户 */
.clients-section {
  width: min(1360px, calc(100% - 64px));
  margin: 0 auto 8px;
  padding: 48px 0 36px;
}

.clients-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 28px;
}

.clients-head .eyebrow {
  display: inline-flex;
  justify-content: center;
  width: auto;
  margin: 0 auto 10px;
}

.clients-head h2 {
  margin: 0 0 10px;
  font-size: clamp(28px, 3.2vw, 40px);
  letter-spacing: -1.2px;
  line-height: 1.15;
}

.clients-head p {
  margin: 0;
  color: var(--muted, #667085);
  font-size: 14px;
}

.clients-marquee {
  overflow: hidden;
  overflow-x: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}

.clients-marquee::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

.clients-track {
  display: flex;
  width: max-content;
  gap: 16px;
  /* 纯 CSS 无缝滚动：两组内容相同，位移半个轨道（含 16px 间距的一半） */
  animation-name: clients-scroll;
  animation-timing-function: linear;
  /* styles.css 在“减少动态效果”下会把全站动画压成 0.01ms 且只播一次，
     这里用更高优先级的 !important 让跑马灯不受影响（慢速、可悬停暂停） */
  animation-duration: 40s !important;
  animation-iteration-count: infinite !important;
  will-change: transform;
}

.clients-marquee:hover .clients-track {
  animation-play-state: paused;
}

.clients-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: nowrap;
  gap: 16px;
}

.clients-row > li {
  flex: 0 0 auto;
}

.client-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  width: 220px;
  min-height: 148px;
  padding: 22px 18px 18px;
  border: 1px solid rgba(16, 23, 36, 0.12);
  border-radius: 18px;
  background: rgba(255, 254, 251, 0.72);
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.client-card:hover {
  transform: translateY(-3px);
  background: #fff;
  box-shadow: 0 14px 32px rgba(21, 29, 46, 0.08);
}

.client-logo {
  display: grid;
  place-items: center;
  width: 100%;
  height: 64px;
}

.client-logo img {
  max-width: 160px;
  max-height: 56px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.client-name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

@keyframes clients-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(calc(-50% - 8px)); }
}

@media (max-width: 860px) {
  .clients-section {
    width: min(100% - 36px, 720px);
    padding-top: 36px;
  }


  .client-card {
    width: 190px;
    min-height: 136px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .clients-marquee {
    overflow: hidden;
    overflow-x: hidden;
    mask-image: none;
    -webkit-mask-image: none;
  }
}

/* 首屏：深色 AI 科技风。下方合作客户 / 页脚样式保持不动。 */
.hero-stage {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-bottom: 64px;
  color: #fff;
  background:
    radial-gradient(620px 380px at 82% 38%, rgba(47, 107, 255, 0.34), transparent 68%),
    radial-gradient(480px 280px at 8% 12%, rgba(90, 150, 255, 0.16), transparent 70%),
    radial-gradient(360px 220px at 70% 88%, rgba(24, 70, 180, 0.35), transparent 72%),
    linear-gradient(180deg, #050a18 0%, #071433 46%, #0a1c46 100%);
}

.hero-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1.4px 1.4px at 6% 22%, rgba(255, 255, 255, 0.85) 50%, transparent 52%),
    radial-gradient(1.2px 1.2px at 14% 68%, rgba(255, 255, 255, 0.55) 50%, transparent 52%),
    radial-gradient(1.6px 1.6px at 22% 18%, rgba(255, 255, 255, 0.75) 50%, transparent 52%),
    radial-gradient(1px 1px at 28% 46%, rgba(255, 255, 255, 0.6) 50%, transparent 52%),
    radial-gradient(1.8px 1.8px at 36% 28%, rgba(255, 255, 255, 0.9) 50%, transparent 52%),
    radial-gradient(1.1px 1.1px at 44% 72%, rgba(255, 255, 255, 0.5) 50%, transparent 52%),
    radial-gradient(1.3px 1.3px at 52% 16%, rgba(255, 255, 255, 0.7) 50%, transparent 52%),
    radial-gradient(1px 1px at 61% 58%, rgba(255, 255, 255, 0.55) 50%, transparent 52%),
    radial-gradient(2px 2px at 68% 24%, rgba(255, 255, 255, 0.9) 50%, transparent 52%),
    radial-gradient(1.2px 1.2px at 74% 66%, rgba(255, 255, 255, 0.6) 50%, transparent 52%),
    radial-gradient(1.5px 1.5px at 82% 14%, rgba(255, 255, 255, 0.8) 50%, transparent 52%),
    radial-gradient(1px 1px at 88% 48%, rgba(255, 255, 255, 0.55) 50%, transparent 52%),
    radial-gradient(1.7px 1.7px at 93% 30%, rgba(255, 255, 255, 0.85) 50%, transparent 52%),
    radial-gradient(1.1px 1.1px at 18% 84%, rgba(255, 255, 255, 0.45) 50%, transparent 52%),
    radial-gradient(1.3px 1.3px at 48% 88%, rgba(255, 255, 255, 0.4) 50%, transparent 52%),
    radial-gradient(1.2px 1.2px at 78% 80%, rgba(255, 255, 255, 0.5) 50%, transparent 52%);
}

.hero-stage > * {
  position: relative;
  z-index: 1;
}

.hero-stage .site-header {
  width: min(1180px, calc(100% - 48px));
  height: auto;
  min-height: 72px;
  margin: 0 auto;
  padding: 18px 0 6px;
  border-bottom: 0;
  color: #fff;
}

.hero-stage .brand {
  color: #fff;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: 0;
  gap: 8px;
}

.hero-stage .brand-shield {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero-stage .experience-pill {
  height: 34px;
  padding: 0 14px 0 12px;
  border: 1px solid rgba(74, 222, 128, 0.9);
  color: #e9fff4;
  background: rgba(8, 28, 20, 0.28);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
  text-decoration: none;
  box-shadow: inset 0 0 0 1px rgba(16, 60, 36, 0.15);
}

.hero-stage .experience-pill:hover {
  background: rgba(16, 48, 32, 0.45);
}

.hero-stage .experience-pill i {
  width: 7px;
  height: 7px;
  background: #3dde86;
  box-shadow: 0 0 0 4px rgba(61, 222, 134, 0.16);
}

.hero-stage .hero {
  position: relative;
  width: min(1180px, calc(100% - 48px));
  min-height: 0;
  margin: 0 auto;
  padding: 28px 0 8px;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  align-items: start;
  gap: 28px 48px;
}

.hero-stage .hero .eyebrow {
  color: rgba(232, 238, 248, 0.9);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

.hero-stage .hero h1 {
  max-width: 16em;
  margin: 14px 0 14px;
  color: #fff;
  font-size: clamp(34px, 3.8vw, 56px);
  line-height: 1.22;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.hero-stage .hero h1 span {
  color: #3d7eff;
  white-space: nowrap;
  border-bottom: 3px solid #3d7eff;
  padding-bottom: 1px;
}

.hero-stage .hero h1 span::after {
  display: none;
}

.lead-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 18px 0 22px;
}

.hero-stage .hero-lead {
  max-width: none;
  margin: 0;
  color: rgba(214, 222, 236, 0.78);
  font-size: 16px;
  line-height: 1.6;
}

.hero-stage .scan-form {
  max-width: none;
}

.hero-stage .url-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-stage .url-field {
  flex: 1 1 auto;
  min-width: 0;
  height: 56px;
  padding: 0 16px 0 46px;
  border: 0;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}

.hero-stage .url-field:focus-within {
  border-color: transparent;
  transform: none;
  box-shadow:
    0 0 0 4px rgba(61, 126, 255, 0.28),
    0 12px 30px rgba(0, 0, 0, 0.18);
}

.hero-stage .url-icon {
  top: 50%;
  left: 16px;
  stroke: #98a2b3;
  transform: translateY(-50%);
}

.hero-stage .url-field input {
  height: 56px;
  width: auto;
  padding: 0 12px 0 0;
  border: 0;
  border-radius: 0;
  outline: 0;
  color: #1c2434;
  background: transparent;
  box-shadow: none;
  font-size: 16px;
  -webkit-appearance: none;
  appearance: none;
}

.hero-stage .url-field input::placeholder {
  color: #98a2b3;
}

.hero-stage .hero-cta {
  height: 56px;
  min-height: 56px;
  padding: 0 18px;
  border-radius: 12px;
  background: #2f6bff;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(47, 107, 255, 0.38);
}

.hero-stage .hero-cta:hover {
  background: #1f5ef5;
}

.hero-stage .form-error {
  min-height: 0;
  margin: 10px 0 0;
  color: #ffd0d4;
  font-size: 14px;
  font-weight: 650;
}

.hero-stage .form-error:empty {
  display: none;
}

.hero-stage .invite-note {
  margin-top: 12px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  color: rgba(236, 242, 252, 0.92);
  font-size: 14px;
}

.trust-row li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.trust-icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.trust-ok { stroke: #3dde86; }
.trust-trophy { stroke: #f5c451; }
.trust-lock { stroke: #b9d0ff; }

.hero-stage .hero-visual {
  min-height: 0;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.hero-hint {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  align-items: flex-end;
  gap: 0;
  margin: 0;
  color: rgba(226, 234, 255, 0.78);
  font-size: 14px;
  line-height: 1.4;
  text-align: right;
  pointer-events: none;
}

.hero-hint svg {
  width: 92px;
  height: 42px;
  margin-left: 0;
  fill: none;
  stroke: rgba(226, 234, 255, 0.72);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.preview-wrap {
  position: relative;
  padding: 8px 10px 8px 0;
}

.preview-back {
  position: absolute;
  z-index: 0;
  top: 22px;
  right: 0;
  width: 86%;
  height: 88%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.38);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
  transform: rotate(8deg);
}

.preview-card {
  position: relative;
  z-index: 1;
  padding: 18px 16px 16px;
  border-radius: 22px;
  background: #fff;
  color: #1c2434;
  box-shadow: 0 28px 60px rgba(3, 10, 28, 0.32);
}

.preview-kicker {
  color: #8b95a7;
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.preview-score {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 12px;
  padding: 12px 10px 8px 12px;
  border-radius: 14px;
  background: linear-gradient(180deg, #fff6f5, #fff1f0);
}

.preview-score-title {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  color: #e02332;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.45;
}

.preview-score-title svg {
  width: 16px;
  height: 16px;
  margin-top: 3px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.preview-score-copy p {
  margin: 4px 0 0 22px;
  color: #8b95a7;
  font-size: 14px;
  line-height: 1.45;
}

.preview-gauge {
  width: 96px;
  height: 60px;
  flex: 0 0 auto;
}

.preview-findings-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 16px 2px 10px;
  font-size: 15px;
}

.preview-findings-head span {
  color: #2f6bff;
  font-weight: 700;
}

.preview-findings {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.preview-findings li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.preview-findings b,
.preview-findings small {
  display: block;
}

.preview-findings b {
  font-size: 14px;
  line-height: 1.4;
}

.preview-findings small {
  margin-top: 2px;
  color: #8b95a7;
  font-size: 14px;
  line-height: 1.45;
}

.finding-icon {
  width: 22px;
  height: 22px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
}

.finding-icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.finding-bad .finding-icon { color: #ef4444; background: #ffecec; }
.finding-warn .finding-icon { color: #f59e0b; background: #fff4dc; }
.finding-ok .finding-icon { color: #12b76a; background: #e7f8ef; }

.preview-action,
a.preview-action {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 44px;
  margin-top: 16px;
  border: 0;
  border-radius: 10px;
  color: #fff;
  background: #2f6bff;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(47, 107, 255, 0.28);
}

.preview-action:hover,
a.preview-action:hover {
  color: #fff;
  background: #1f5ef5;
  text-decoration: none;
}

body[data-page="report"] .report-scan-form {
  width: min(1240px, calc(100% - 64px));
  margin: 28px auto 0;
}

body[data-page="report"] .report-scan-form .form-error {
  margin: 10px 0 0;
  color: var(--red, #d64450);
  font-size: 14px;
  font-weight: 650;
}

body[data-page="report"] .report-scan-form .form-error:empty {
  display: none;
}

.quota-hint {
  margin: 12px 0 0;
  color: #667085;
  font-size: 14px;
  line-height: 1.55;
}

.quota-hint:empty {
  display: none;
}

body[data-page="report"] .quota-hint {
  text-align: center;
}

.hero-stage .quota-hint {
  color: rgba(226, 234, 255, 0.86);
  text-align: left;
}

a.primary-button,
a.primary-button:hover,
a.primary-button:focus {
  color: #fff;
  text-decoration: none;
}

@media (max-width: 900px) {
  body[data-page="report"] .report-scan-form {
    width: min(100% - 36px, 720px);
  }
}

.feature-row {
  position: relative;
  z-index: 3;
  width: min(1180px, calc(100% - 48px));
  margin: -32px auto 56px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  min-height: 132px;
  padding: 22px 18px 18px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(16, 28, 58, 0.08);
}

.feature-icon {
  width: 44px;
  height: 44px;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 12px;
}

.feature-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-icon-blue { color: #2f6bff; background: #e8f0ff; }
.feature-icon-ai { color: #6d4aff; background: #efe9ff; }
.feature-icon-orange { color: #f97316; background: #fff1e4; }
.feature-icon-orange svg { fill: currentColor; stroke: none; }

.feature-copy h2 {
  margin: 2px 0 6px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.3px;
  line-height: 1.3;
}

.feature-copy p {
  margin: 0;
  color: #667085;
  font-size: 14px;
  line-height: 1.55;
}

.ai-brands {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.ai-brands li {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: #3c4658;
  font-size: 14px;
  font-weight: 650;
}

.ai-brands i {
  width: 16px;
  height: 16px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  font-style: normal;
  font-size: 10px;
  font-weight: 800;
  line-height: 1;
}

.ai-kimi { border-radius: 4px; background: #1677ff; }
.ai-deepseek { background: #4d6bfe; }
.ai-doubao { background: conic-gradient(#ff5a7a, #ffb020, #3ddc84, #4d8dff, #ff5a7a); }
.ai-chatgpt { background: #10a37f; }
.ai-gemini { background: conic-gradient(#4285f4, #ea4335, #fbbc05, #34a853, #4285f4); }

@media (max-width: 1100px) {
  .hero-hint { display: none; }
}

@media (max-width: 980px) {
  .hero-stage .hero {
    grid-template-columns: 1fr;
    padding-top: 18px;
  }

  .preview-wrap {
    max-width: 480px;
  }

  .hero-stage .hero h1 span {
    white-space: normal;
  }
}

@media (max-width: 720px) {
  .hero-stage {
    padding-bottom: 48px;
  }

  .hero-stage .site-header,
  .hero-stage .hero,
  .feature-row {
    width: min(100% - 28px, 720px);
  }

  .hero-stage .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    min-height: 0;
    padding-top: 16px;
  }

  .hero-stage .experience-pill {
    height: auto;
    padding: 6px 12px;
    white-space: normal;
    line-height: 1.45;
  }

  .hero-stage .hero h1 {
    font-size: clamp(30px, 8.2vw, 40px);
  }

  .hero-stage .url-row {
    flex-direction: column;
    align-items: stretch;
  }

  /* 覆盖 styles.css ≤680px：避免外层白底 + input 再套一层边框（iOS 微信尤甚） */
  .hero-stage .url-field {
    align-items: center;
    flex-wrap: nowrap;
    height: 56px;
    padding: 0 16px 0 46px;
    border: 0;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
  }

  .hero-stage .url-field:focus-within {
    border-color: transparent;
    box-shadow:
      0 0 0 4px rgba(61, 126, 255, 0.28),
      0 12px 30px rgba(0, 0, 0, 0.18);
    transform: none;
  }

  .hero-stage .url-icon {
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
  }

  .hero-stage .url-field input {
    width: auto;
    flex: 1 1 auto;
    height: 56px;
    padding: 0 12px 0 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    font-size: 16px; /* iOS 不会因 <16px 强制放大导致错位 */
    -webkit-appearance: none;
    appearance: none;
  }

  .hero-stage .hero-cta {
    width: 100%;
  }

  .feature-row {
    grid-template-columns: 1fr;
    margin-top: -24px;
  }
}