:root {
  color-scheme: light;
  --text: #111318;
  --muted: #666d7a;
  --subtle: #89909c;
  --line: rgba(17, 19, 24, 0.1);
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --primary: #007aff;
  --primary-deep: #0057d9;
  --warm: #ff7a59;
  --radius-xl: 36px;
  --radius-lg: 28px;
  --radius-md: 20px;
  --shadow-soft: 0 24px 80px rgba(24, 33, 53, 0.12);
  --shadow-card: 0 18px 50px rgba(24, 33, 53, 0.1);
  --max-width: 1180px;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background: #f5f7fb;
  overflow-x: hidden;
}

body::selection {
  color: #fff;
  background: var(--primary);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.site-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 8%, rgba(0, 122, 255, 0.22), transparent 28%),
    radial-gradient(circle at 82% 18%, rgba(255, 149, 0, 0.2), transparent 22%),
    radial-gradient(circle at 50% 88%, rgba(175, 82, 222, 0.16), transparent 26%),
    linear-gradient(180deg, #f8fbff 0%, #f2f4f8 48%, #ffffff 100%);
}

.topbar {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 32px), var(--max-width));
  margin: 14px auto 0;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: 0 12px 40px rgba(20, 28, 45, 0.08);
  backdrop-filter: blur(26px) saturate(180%);
}

.brand,
.nav-links,
.trust-row,
.hero-actions,
.submit-row {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  padding-left: 4px;
  font-weight: 750;
  letter-spacing: -0.03em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: #fff;
  border-radius: 12px;
  background: linear-gradient(145deg, #111318, #3a4252);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 10px 20px rgba(17, 19, 24, 0.18);
}

.nav-links {
  gap: 4px;
  padding: 4px;
  color: var(--muted);
  border-radius: 999px;
  background: rgba(245, 247, 251, 0.74);
}

.nav-links a {
  padding: 8px 15px;
  border-radius: 999px;
  transition: color 180ms ease, background 180ms ease;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--text);
  background: #fff;
}

.nav-cta,
.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.home-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid rgba(17, 19, 24, 0.08);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.84);
  font-weight: 700;
  white-space: nowrap;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.nav-cta,
.primary-btn {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #5e5ce6);
  box-shadow: 0 16px 34px rgba(0, 122, 255, 0.25);
}

.secondary-btn {
  color: var(--text);
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(17, 19, 24, 0.08);
}

.nav-cta:active,
.primary-btn:active,
.secondary-btn:active,
.home-link:active,
.case-card:active,
.price-card:active {
  transform: scale(0.97);
}

.primary-btn:disabled {
  cursor: wait;
  opacity: 0.72;
  transform: none;
}

.section-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 88px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(320px, 0.94fr);
  gap: 52px;
  align-items: center;
  min-height: calc(100svh - 76px);
  padding-top: 54px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--primary-deep);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(46px, 7vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.075em;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(34px, 4.2vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.06em;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  letter-spacing: -0.04em;
}

.hero-lead,
.section-heading p,
.case-card p,
.price-card p,
.preview-copy p,
.result-card p,
.faq-card p,
.auth-card p,
.order-panel p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-lead {
  max-width: 650px;
  margin-bottom: 32px;
  font-size: 19px;
}

.hero-actions {
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.trust-row {
  gap: 10px;
  flex-wrap: wrap;
}

.trust-row span {
  padding: 8px 12px;
  color: #3f4652;
  font-size: 13px;
  border: 1px solid rgba(17, 19, 24, 0.07);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.66);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.device-card,
.case-card,
.price-card,
.order-form,
.status-board,
.result-card,
.faq-card {
  border: 1px solid rgba(255, 255, 255, 0.74);
  background: var(--surface);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(28px) saturate(180%);
}

.device-card {
  width: min(100%, 430px);
  padding: 18px;
  border-radius: 46px;
  transform: rotate(1.5deg);
}

.status-pill {
  display: inline-flex;
  margin: 4px 0 14px 8px;
  padding: 9px 13px;
  color: #fff;
  font-size: 13px;
  font-weight: 750;
  border-radius: 999px;
  background: rgba(17, 19, 24, 0.82);
}

.hero-demo-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 9 / 16;
  max-height: 520px;
  border-radius: 34px;
  background: #07090d;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14);
}

.hero-demo-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent 28%),
    radial-gradient(circle at 50% 12%, rgba(255, 255, 255, 0.16), transparent 26%);
}

.hero-demo-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preview-copy,
.progress-card {
  margin-top: 14px;
  padding: 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
}

.progress-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 14px;
  align-items: center;
}

.progress-track {
  grid-column: 1 / -1;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(17, 19, 24, 0.08);
}

.progress-track i {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), #34c759);
  transition: width 400ms ease;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 32px;
}

.case-grid,
.price-grid,
.faq-grid,
.upload-grid,
.form-grid {
  display: grid;
  gap: 18px;
}

.case-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.case-card,
.price-card,
.faq-card {
  padding: 18px;
  border-radius: var(--radius-lg);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.case-card {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 210px;
  padding: 24px;
}

.case-card:hover,
.price-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.case-label {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 28px;
  padding: 8px 12px;
  color: var(--primary-deep);
  font-size: 13px;
  font-weight: 850;
  border-radius: 999px;
  background: rgba(0, 122, 255, 0.1);
}

.case-label.soft { color: #8a4b00; background: rgba(255, 149, 0, 0.14); }
.case-label.blue { color: #0057d9; background: rgba(0, 122, 255, 0.12); }
.case-label.green { color: #167a3b; background: rgba(52, 199, 89, 0.14); }

.split-section {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 38px;
  align-items: start;
}

.flow-list {
  display: grid;
  gap: 12px;
}

.flow-step {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  color: var(--muted);
  border: 1px solid rgba(17, 19, 24, 0.07);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.58);
}

.flow-step b {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--text);
  border-radius: 16px;
  background: #fff;
}

.flow-step.active {
  color: var(--text);
  border-color: rgba(0, 122, 255, 0.25);
  background: rgba(255, 255, 255, 0.9);
}

.price-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.price-card {
  min-height: 240px;
}

.price-card span {
  color: var(--primary-deep);
  font-weight: 800;
}

.price-card strong {
  display: block;
  margin: 22px 0 12px;
  font-size: 38px;
  letter-spacing: -0.05em;
}

.price-card.featured {
  color: #fff;
  background: linear-gradient(145deg, #111318, #343b4b);
}

.price-card.featured p,
.price-card.featured span {
  color: rgba(255, 255, 255, 0.72);
}

.price-option {
  width: 100%;
  color: var(--text);
  text-align: left;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.price-option.featured {
  color: var(--text);
  background: var(--surface);
}

.price-option.featured p,
.price-option.featured .price-option-tag {
  color: var(--muted);
}

.price-option-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 24px;
}

.price-option .price-option-tag {
  color: var(--primary-deep);
}

.price-option.featured .price-option-tag {
  color: var(--primary-deep);
}

.price-option-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 9px;
  color: #fff;
  font-size: 11px;
  font-style: normal;
  font-weight: 800;
  letter-spacing: 0.02em;
  border-radius: 999px;
  background: var(--primary);
}

.price-option-badge::before {
  content: "✓";
  font-size: 12px;
}

.price-option.selected {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.8);
  background: linear-gradient(145deg, #111318, #343b4b);
  box-shadow: 0 28px 80px rgba(17, 19, 24, 0.22);
}

.price-option.selected p,
.price-option.selected .price-option-tag {
  color: rgba(255, 255, 255, 0.72);
}

.price-option.selected .price-option-badge {
  color: #0b1020;
  background: #fff;
}

.order-form {
  padding: 22px;
  border-radius: var(--radius-xl);
}

.form-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.upload-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 18px 0;
}

.driver-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
  padding: 18px;
  border: 1px solid rgba(17, 19, 24, 0.08);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.62);
}

.driver-card legend {
  padding: 0 8px;
  color: #384050;
  font-weight: 800;
}

.driver-option {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px;
  border: 1px solid rgba(17, 19, 24, 0.08);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.72);
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.driver-option.active {
  border-color: rgba(0, 122, 255, 0.36);
  background: rgba(240, 247, 255, 0.92);
  box-shadow: 0 12px 30px rgba(0, 122, 255, 0.1);
}

.driver-option.is-disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.driver-option input {
  width: 18px;
  min-width: 18px;
  min-height: 18px;
  height: 18px;
  margin-top: 3px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  accent-color: var(--primary);
}

.driver-option strong,
.driver-option small {
  display: block;
}

.driver-option small {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.6;
}

label span,
.progress-card span,
.order-panel span {
  display: block;
  margin-bottom: 8px;
  color: #384050;
  font-size: 14px;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  color: var(--text);
  border: 1px solid rgba(17, 19, 24, 0.08);
  outline: 0;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

input,
select {
  min-height: 52px;
  padding: 0 16px;
}

textarea {
  resize: vertical;
  padding: 15px 16px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(0, 122, 255, 0.55);
  background: #fff;
  box-shadow: 0 0 0 5px rgba(0, 122, 255, 0.1);
}

.dropzone {
  display: grid;
  place-items: center;
  min-height: 150px;
  padding: 20px;
  text-align: center;
  border: 1px dashed rgba(0, 122, 255, 0.32);
  border-radius: 26px;
  background: rgba(240, 247, 255, 0.72);
  cursor: pointer;
}

.dropzone input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.dropzone small {
  color: var(--muted);
  line-height: 1.6;
}

.record-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
  margin: 18px 0;
  padding: 18px;
  border: 1px solid rgba(88, 86, 214, 0.16);
  border-radius: 26px;
  background: rgba(246, 244, 255, 0.78);
}

.record-card h3,
.record-card p,
.record-hint {
  margin-bottom: 0;
}

.record-card p,
.record-hint {
  color: var(--muted);
  line-height: 1.6;
}

.record-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.record-actions audio {
  width: 240px;
}

.voice-script-card {
  margin: 12px 0 0;
  padding: 16px;
  color: #18202f;
  border: 1px solid rgba(0, 122, 255, 0.14);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.8;
}

.wide-field {
  display: block;
  margin-top: 18px;
}

.auth-card {
  margin-top: 18px;
  padding: 20px;
  border: 1px solid rgba(255, 149, 0, 0.22);
  border-radius: 26px;
  background: rgba(255, 248, 235, 0.82);
}

.auth-card label {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 12px 0;
  color: #3f4652;
  line-height: 1.55;
}

.auth-card label.muted-auth {
  color: rgba(63, 70, 82, 0.5);
}

.auth-card input {
  width: 18px;
  min-width: 18px;
  min-height: 18px;
  height: 18px;
  margin-top: 3px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  accent-color: var(--primary);
}

.driver-option input:focus,
.auth-card input:focus {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  outline: 2px solid rgba(0, 122, 255, 0.45);
  outline-offset: 2px;
}

.order-query-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: end;
  margin: 22px 0 12px;
}

.query-hint {
  min-height: 28px;
}

.submit-row {
  justify-content: space-between;
  gap: 18px;
  margin-top: 20px;
}

.submit-row p {
  margin: 0;
  color: var(--muted);
}

.status-board {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 22px;
  padding: 22px;
  border-radius: var(--radius-xl);
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  color: var(--muted);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.58);
}

.timeline-item b {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 3px solid rgba(17, 19, 24, 0.12);
}

.timeline-item.done {
  color: var(--text);
  background: rgba(255, 255, 255, 0.9);
}

.timeline-item.done b {
  border-color: var(--primary);
  background: var(--primary);
}

.order-panel {
  padding: 20px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.78);
}

.order-panel h3 {
  font-size: 28px;
}

.result-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: center;
  padding: 22px;
  border-radius: var(--radius-xl);
}

.video-placeholder {
  position: relative;
  min-height: 340px;
  overflow: hidden;
  border-radius: 30px;
  background: linear-gradient(145deg, #111318, #566176 54%, #d8b79c);
}

.video-placeholder.has-video {
  background: #07090d;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.result-preview-video {
  display: block;
  width: 100%;
  min-height: 340px;
  max-height: 520px;
  object-fit: contain;
  background: #07090d;
}

.video-preview-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 26px;
  text-align: center;
}

.video-preview-empty span {
  position: absolute;
  inset: 50%;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
  transform: translate(-50%, -50%);
}

.video-preview-empty span::after {
  content: "";
  position: absolute;
  left: 30px;
  top: 23px;
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  border-left: 20px solid var(--primary);
}

.video-preview-empty p {
  align-self: end;
  max-width: 220px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.7;
}

.faq-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pricing-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 22px;
}

.pricing-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 19, 24, 0.38);
  backdrop-filter: blur(18px) saturate(160%);
}

.pricing-modal-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 980px);
  max-height: min(88svh, 820px);
  overflow: auto;
  padding: 34px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 36px;
  background: rgba(250, 252, 255, 0.9);
  box-shadow: 0 34px 120px rgba(17, 19, 24, 0.24);
  backdrop-filter: blur(30px) saturate(180%);
}

.pricing-modal-panel h2 {
  max-width: 760px;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  color: var(--muted);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.82);
}

.modal-price-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 26px 0;
}

.pricing-redeem {
  margin: 8px 0 22px;
  padding: 18px;
  border: 1px solid rgba(0, 122, 255, 0.16);
  border-radius: 24px;
  background: rgba(240, 247, 255, 0.72);
}

.pricing-redeem label {
  display: block;
  margin-bottom: 10px;
  color: var(--text);
  font-weight: 800;
}

.pricing-redeem-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.pricing-redeem-row input {
  flex: 1;
  min-width: 0;
}

.pricing-redeem small {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  line-height: 1.5;
}

.pricing-modal-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.pricing-hint {
  min-height: 28px;
  margin: 16px 0 0;
  color: var(--muted);
}

body.modal-open {
  overflow: hidden;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 28px;
  padding-bottom: 34px;
  color: var(--subtle);
  font-size: 13px;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--muted);
  transition: color 160ms ease;
}

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

.mobile-cta {
  display: none;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

[hidden] {
  display: none !important;
}

@media (max-width: 900px) {
  .topbar {
    width: min(calc(100% - 22px), var(--max-width));
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .section-shell {
    width: min(calc(100% - 22px), var(--max-width));
    padding: 62px 0;
  }

  .hero,
  .split-section,
  .status-board,
  .result-card {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 28px;
    min-height: auto;
  }

  .device-card {
    transform: none;
  }

  .case-grid,
  .price-grid,
  .modal-price-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .pricing-modal {
    align-items: end;
    padding: 12px;
  }

  .pricing-modal-panel {
    max-height: 90svh;
    padding: 28px 18px;
    border-radius: 28px;
  }

  .pricing-modal-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .pricing-redeem-row {
    align-items: stretch;
    flex-direction: column;
  }

  .form-grid,
  .upload-grid,
  .driver-card,
  .record-card {
    grid-template-columns: 1fr;
  }

  .record-actions {
    justify-content: flex-start;
  }

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

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .order-query-form {
    grid-template-columns: 1fr;
  }

  .mobile-cta {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 30;
    display: block;
    padding: 12px max(14px, env(safe-area-inset-left)) max(14px, env(safe-area-inset-bottom));
    background: linear-gradient(180deg, transparent, rgba(245, 247, 251, 0.94) 32%);
  }

  .mobile-cta .primary-btn {
    width: 100%;
  }

  body {
    padding-bottom: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
  }
}

/* CleanMac 同款深色玻璃态视觉层 */
:root {
  color-scheme: dark;
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.64);
  --subtle: rgba(255, 255, 255, 0.42);
  --line: rgba(255, 255, 255, 0.13);
  --surface: rgba(255, 255, 255, 0.08);
  --surface-strong: rgba(255, 255, 255, 0.12);
  --primary: #ff4b1f;
  --primary-deep: #ffd0be;
  --warm: #ffd66b;
  --green: #7cffb2;
  --cyan: #7ed7ff;
  --shadow-soft: 0 24px 80px rgba(0, 0, 0, 0.45);
  --shadow-card: 0 22px 70px rgba(0, 0, 0, 0.28);
}

html {
  background: #07080c;
}

body {
  color: var(--text);
  background:
    radial-gradient(circle at 20% -10%, rgba(255, 122, 34, 0.34), transparent 36rem),
    radial-gradient(circle at 92% 14%, rgba(255, 75, 31, 0.24), transparent 34rem),
    radial-gradient(circle at 58% 58%, rgba(124, 255, 178, 0.08), transparent 32rem),
    linear-gradient(180deg, #0c0d13 0%, #07080c 44%, #090a0f 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.72), transparent 78%);
}

body::after {
  position: fixed;
  right: -12rem;
  bottom: -18rem;
  z-index: -2;
  width: 42rem;
  height: 42rem;
  border-radius: 999px;
  background: rgba(255, 214, 107, 0.08);
  filter: blur(8px);
  content: "";
}

.site-bg {
  z-index: -3;
  background:
    radial-gradient(circle at 18% 6%, rgba(255, 122, 34, 0.32), transparent 31rem),
    radial-gradient(circle at 84% 13%, rgba(255, 75, 31, 0.22), transparent 30rem),
    radial-gradient(circle at 58% 78%, rgba(124, 255, 178, 0.1), transparent 32rem),
    linear-gradient(180deg, #10131f 0%, #07080c 58%, #05060a 100%);
}

.topbar {
  top: 16px;
  width: min(calc(100% - 32px), var(--max-width));
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(7, 8, 12, 0.72);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
}

.brand {
  gap: 12px;
  padding-left: 0;
  color: var(--text);
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  background: linear-gradient(145deg, #ff7a22, #ff4b1f);
  box-shadow: 0 10px 24px rgba(255, 75, 31, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.26);
}

.brand-copy,
.brand-copy strong,
.brand-copy small {
  display: block;
}

.brand-copy strong {
  font-size: 15px;
  letter-spacing: -0.01em;
}

.brand-copy small {
  margin-top: 2px;
  color: var(--subtle);
  font-size: 12px;
  letter-spacing: 0;
}

.nav-links {
  gap: 6px;
  padding: 0;
  color: var(--muted);
  background: transparent;
}

.nav-links a {
  padding: 10px 12px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a.active,
.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-cta,
.primary-btn,
.secondary-btn {
  min-height: 48px;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}

.home-link {
  min-height: 48px;
  border-color: rgba(255, 255, 255, 0.14);
  color: #fff;
  background: linear-gradient(135deg, rgba(255,122,34,.22), rgba(255,75,31,.16));
  font-weight: 800;
}

.nav-cta:hover,
.primary-btn:hover,
.secondary-btn:hover,
.home-link:hover,
.case-card:hover,
.price-card:hover,
.faq-card:hover,
.driver-option:hover,
.flow-step:hover {
  transform: translateY(-2px);
}

.nav-cta,
.primary-btn {
  color: #fff;
  background: linear-gradient(135deg, #ff7a22, #ff4b1f);
  box-shadow: 0 16px 34px rgba(255, 75, 31, 0.34);
}

.secondary-btn {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.07);
}

.section-shell {
  padding: 92px 0;
}

.hero {
  min-height: calc(100svh - 92px);
  padding-top: 72px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: #ffd0be;
  background: rgba(255, 75, 31, 0.12);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--text);
}

h1 {
  font-size: clamp(44px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.07em;
}

h2 {
  font-size: clamp(32px, 4.5vw, 54px);
  line-height: 1.02;
  letter-spacing: -0.055em;
}

h3 {
  letter-spacing: -0.03em;
}

.hero-lead,
.section-heading p,
.case-card p,
.price-card p,
.preview-copy p,
.result-card p,
.faq-card p,
.auth-card p,
.order-panel p,
.driver-option small,
.record-card p,
.record-hint,
.submit-row p,
.query-hint,
.pricing-hint,
.pricing-redeem small,
.dropzone small {
  color: var(--muted);
}

.trust-row span,
.status-pill,
.case-label,
.price-card span,
.price-option .price-option-tag,
label span,
.progress-card span,
.order-panel span,
.driver-card legend,
.pricing-redeem label {
  color: #ffd0be;
}

.trust-row span {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.07);
}

.device-card,
.case-card,
.price-card,
.order-form,
.status-board,
.result-card,
.faq-card,
.driver-card,
.record-card,
.auth-card,
.order-panel,
.preview-copy,
.progress-card,
.pricing-modal-panel,
.pricing-redeem,
.voice-script-card {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(28px) saturate(160%);
  -webkit-backdrop-filter: blur(28px) saturate(160%);
}

.device-card {
  border-radius: 42px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.06)),
    rgba(255, 255, 255, 0.08);
}

.status-pill {
  background: rgba(255, 75, 31, 0.16);
}

.hero-demo-frame {
  background: #07090d;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14), 0 28px 80px rgba(0, 0, 0, 0.32);
}

.hero-demo-frame::after {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), transparent 28%),
    radial-gradient(circle at 50% 12%, rgba(255, 214, 107, 0.18), transparent 26%);
}

.progress-track {
  background: rgba(255, 255, 255, 0.12);
}

.progress-track i {
  background: linear-gradient(90deg, #ff7a22, #ff4b1f, #7cffb2);
}

.case-card,
.price-card,
.faq-card {
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.case-card:hover,
.price-card:hover,
.faq-card:hover {
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.11);
  box-shadow: var(--shadow-soft);
}

.case-label,
.case-label.soft,
.case-label.blue,
.case-label.green {
  border: 1px solid rgba(255, 75, 31, 0.18);
  background: rgba(255, 75, 31, 0.12);
}

.case-label.blue {
  color: #7ed7ff;
  border-color: rgba(126, 215, 255, 0.18);
  background: rgba(126, 215, 255, 0.1);
}

.case-label.green {
  color: #7cffb2;
  border-color: rgba(124, 255, 178, 0.18);
  background: rgba(124, 255, 178, 0.1);
}

.flow-step,
.driver-option,
.price-option,
.timeline-item,
.dropzone,
.modal-close {
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.flow-step b {
  color: #ffd66b;
  background: rgba(255, 214, 107, 0.1);
}

.flow-step.active,
.driver-option.active,
.price-option.selected,
.timeline-item.done {
  color: var(--text);
  border-color: rgba(255, 122, 34, 0.42);
  background: linear-gradient(145deg, rgba(255, 122, 34, 0.18), rgba(255, 255, 255, 0.08));
  box-shadow: 0 18px 54px rgba(255, 75, 31, 0.12);
}

.price-card.featured,
.price-option.selected {
  color: #fff;
  background: linear-gradient(145deg, rgba(255, 122, 34, 0.24), rgba(255, 75, 31, 0.1)), rgba(255, 255, 255, 0.08);
}

.price-card.featured p,
.price-card.featured span,
.price-option.selected p,
.price-option.selected .price-option-tag {
  color: rgba(255, 255, 255, 0.72);
}

.price-option-badge,
.timeline-item.done b {
  color: #0b0d14;
  background: #ffd66b;
}

input,
select,
textarea,
.pricing-redeem-row input {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.07);
}

input::placeholder,
textarea::placeholder {
  color: rgba(255, 255, 255, 0.34);
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(255, 122, 34, 0.58);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 5px rgba(255, 75, 31, 0.12);
}

select option {
  color: #111318;
  background: #fff;
}

.dropzone {
  border-style: dashed;
  border-color: rgba(255, 122, 34, 0.34);
}

.auth-card label,
.auth-card label.muted-auth {
  color: var(--muted);
}

.auth-card input,
.driver-option input {
  accent-color: var(--primary);
}

.driver-option input:focus,
.auth-card input:focus {
  outline-color: rgba(255, 122, 34, 0.52);
}

.voice-script-card {
  color: var(--text);
}

.video-placeholder {
  background:
    radial-gradient(circle at 30% 18%, rgba(255, 214, 107, 0.22), transparent 16rem),
    linear-gradient(145deg, #111318, #343b4b 54%, #ff7a22);
}

.video-preview-empty span {
  background: rgba(255, 255, 255, 0.9);
}

.video-preview-empty span::after {
  border-left-color: var(--primary);
}

.pricing-modal-backdrop {
  background: rgba(3, 4, 8, 0.62);
}

.mobile-cta {
  background: linear-gradient(180deg, transparent, rgba(7, 8, 12, 0.94) 32%);
}

@media (max-width: 900px) {
  .topbar {
    top: 10px;
    width: min(calc(100% - 22px), var(--max-width));
  }

  .hero {
    padding-top: 42px;
  }

  .section-shell {
    padding: 68px 0;
  }
}