:root {
  --page: #eef4ff;
  --canvas: #f7faff;
  --ink: #0f172a;
  --muted: #64748b;
  --soft: #dbe7f7;
  --panel: #ffffff;
  --green: #12a66a;
  --green-dark: #08784c;
  --mint: #e9f9f0;
  --gold: #f2a93b;
  --blue: #1677ff;
  --blue-dark: #0b4fb8;
  --red: #ef4444;
  --shadow: 0 18px 50px rgba(15, 23, 42, .14);
  --shadow-soft: 0 10px 28px rgba(15, 23, 42, .08);
  --radius: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #eaf2ff 0, #f7faff 42%, #f1f5fb 100%);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

img {
  display: block;
  max-width: 100%;
}

.phone-stage {
  width: min(100%, 448px);
  min-height: 100vh;
  margin: 0 auto;
  background: var(--canvas);
  box-shadow: 0 0 0 1px rgba(22, 119, 255, .06), 0 24px 80px rgba(27, 82, 155, .14);
  overflow: hidden;
  padding-bottom: 82px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 58px;
  padding: 0 18px;
  border-bottom: 1px solid rgba(219, 231, 247, .9);
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 900;
  font-size: 17px;
  letter-spacing: 0;
}

.brand img {
  display: block;
  flex: 0 0 36px;
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 10px;
  background: transparent;
  box-shadow: 0 8px 18px rgba(22, 119, 255, .12);
  object-fit: contain;
}

.nav-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid #dbe7f7;
  border-radius: 999px;
  color: var(--blue-dark);
  background: #f5f9ff;
  font-size: 13px;
  font-weight: 800;
}

.hero {
  position: relative;
  padding: 22px 18px 24px;
  color: var(--ink);
  background:
    linear-gradient(180deg, #eef6ff 0%, #f7fbff 58%, #ffffff 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(22, 119, 255, .06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(22, 119, 255, .045) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, #000, transparent 72%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 30px;
  padding: 4px 10px;
  border: 1px solid rgba(22, 119, 255, .14);
  border-radius: 999px;
  background: #eaf3ff;
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 900;
}

.hero-label::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px rgba(22, 119, 255, .12);
}

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

h1 {
  margin: 14px 0 12px;
  font-size: 34px;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-copy {
  margin-bottom: 18px;
  color: #475569;
  font-size: 16px;
}

.hero-actions {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 10px;
  margin-bottom: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 900;
  white-space: nowrap;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 16px 28px rgba(22, 119, 255, .24);
}

.btn-ghost {
  border-color: #cfe0f6;
  background: #fff;
  color: var(--blue-dark);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 18px;
}

.trust-item {
  min-height: 62px;
  padding: 9px 8px;
  border: 1px solid rgba(22, 119, 255, .1);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 22px rgba(27, 82, 155, .08);
}

.trust-item strong {
  display: block;
  color: var(--blue-dark);
  font-size: 17px;
  line-height: 1.2;
}

.trust-item span {
  display: block;
  margin-top: 3px;
  color: #64748b;
  font-size: 12px;
  line-height: 1.35;
}

.product-card {
  overflow: hidden;
  border: 1px solid rgba(22, 119, 255, .12);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 26px 58px rgba(27, 82, 155, .16);
}

.product-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 30px;
  padding: 0 10px;
  border-bottom: 1px solid #e8eef7;
  background: #f8fbff;
}

.bar-dots {
  display: flex;
  gap: 6px;
}

.bar-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ef4444;
}

.bar-dots span:nth-child(2) {
  background: #f59e0b;
}

.bar-dots span:nth-child(3) {
  background: #22c55e;
}

.product-bar em {
  color: #94a3b8;
  font-size: 12px;
  font-style: normal;
}

.product-card img {
  width: 100%;
  height: 215px;
  object-fit: cover;
}

.section {
  padding: 28px 18px;
}

.section-white {
  background: #fff;
}

.section-head {
  margin-bottom: 18px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  margin-bottom: 10px;
  padding: 4px 11px;
  border-radius: 999px;
  background: #eaf3ff;
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 900;
}

h2 {
  margin-bottom: 10px;
  font-size: 28px;
  line-height: 1.22;
  letter-spacing: 0;
}

.section-head p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.industry-card {
  min-height: 118px;
  padding: 14px;
  border: 1px solid rgba(15, 23, 42, .08);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.industry-card::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 3px;
  border-radius: 999px 999px 0 0;
  background: linear-gradient(90deg, var(--blue), var(--green), var(--gold));
}

.industry-card strong {
  display: block;
  margin-bottom: 7px;
  font-size: 16px;
}

.industry-card span {
  color: var(--muted);
  font-size: 13px;
}

.flow-panel {
  padding: 14px;
  border: 1px solid rgba(15, 23, 42, .08);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.flow-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid #edf2f7;
}

.flow-item:first-child {
  padding-top: 0;
}

.flow-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.flow-num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: #eaf3ff;
  color: var(--blue-dark);
  font-weight: 900;
}

.flow-item h3 {
  margin-bottom: 3px;
  font-size: 16px;
}

.flow-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.module-card {
  min-height: 138px;
  padding: 14px;
  border-radius: var(--radius);
  color: #fff;
  background: linear-gradient(150deg, #0b4fb8, #1677ff);
  box-shadow: var(--shadow-soft);
}

.module-card:nth-child(2) {
  background: linear-gradient(150deg, #08664a, #12a66a);
}

.module-card:nth-child(3) {
  background: linear-gradient(150deg, #6b3c08, #f2a93b);
}

.module-card:nth-child(4) {
  background: linear-gradient(150deg, #1c2430, #475569);
}

.module-card small {
  display: block;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, .58);
  font-size: 12px;
  font-weight: 900;
}

.module-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 17px;
}

.module-card span {
  color: rgba(255, 255, 255, .76);
  font-size: 13px;
}

.version-card {
  display: grid;
  gap: 10px;
}

.plan {
  padding: 15px;
  border: 1px solid rgba(15, 23, 42, .08);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.plan-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.plan h3 {
  margin: 0;
  font-size: 17px;
}

.price {
  padding: 3px 8px;
  border-radius: 999px;
  background: #eaf3ff;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.plan ul {
  display: grid;
  gap: 7px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.plan li {
  position: relative;
  padding-left: 18px;
  color: #475569;
  font-size: 13px;
}

.plan li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .75em;
  width: 8px;
  height: 8px;
  border-radius: 3px;
  background: var(--blue);
  transform: translateY(-50%);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.service-card {
  min-height: 118px;
  padding: 14px;
  border: 1px solid rgba(15, 23, 42, .08);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.service-card strong {
  display: block;
  margin-bottom: 7px;
  font-size: 16px;
}

.service-card span {
  color: var(--muted);
  font-size: 13px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 4px 10px;
  border: 1px solid #dbe7f7;
  border-radius: 999px;
  background: #fff;
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 800;
}

.quick-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.quick-card,
.download-row,
.faq-item {
  border: 1px solid rgba(15, 23, 42, .08);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.quick-card {
  min-height: 86px;
  padding: 14px;
}

.quick-card strong,
.download-row strong {
  display: block;
  margin-bottom: 5px;
  font-size: 16px;
}

.quick-card span,
.download-row span {
  color: var(--muted);
  font-size: 13px;
}

.download-list,
.faq-list {
  display: grid;
  gap: 10px;
}

.download-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px;
}

.download-row .btn {
  min-height: 40px;
  padding: 8px 12px;
  font-size: 13px;
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid rgba(15, 23, 42, .08);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.compare-table {
  width: 700px;
  border-collapse: collapse;
  font-size: 13px;
}

.compare-table th,
.compare-table td {
  padding: 11px 10px;
  border-bottom: 1px solid #edf2f7;
  text-align: left;
  vertical-align: top;
}

.compare-table th {
  background: #f8fbff;
  color: #334155;
  font-weight: 900;
}

.compare-table tr:last-child td {
  border-bottom: 0;
}

.yes {
  color: var(--green-dark);
  font-weight: 900;
}

.no {
  color: #dc2626;
  font-weight: 900;
}

.faq-item {
  padding: 0;
  overflow: hidden;
}

.faq-item summary {
  min-height: 54px;
  padding: 15px 44px 15px 15px;
  color: #1e293b;
  font-weight: 900;
  cursor: pointer;
  list-style: none;
  position: relative;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  color: var(--blue);
  font-size: 22px;
  transform: translateY(-50%);
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-item p {
  margin: 0;
  padding: 0 15px 15px;
  color: var(--muted);
}

.image-note {
  padding: 12px 14px;
  border-top: 1px solid #e8eef7;
  background: #f8fbff;
  color: var(--muted);
  font-size: 13px;
}

.bottom-cta {
  position: fixed;
  left: 50%;
  bottom: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: min(100%, 448px);
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  border-top: 1px solid rgba(219, 231, 247, .92);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
}

.bottom-cta .btn {
  min-height: 46px;
}

.bottom-cta .btn-ghost {
  border-color: #dbe7f7;
  color: var(--blue-dark);
  background: #fff;
}

.contact-open {
  overflow: hidden;
}

.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
}

.contact-modal.is-open {
  display: block;
}

.contact-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, .48);
}

.contact-sheet {
  position: absolute;
  left: 50%;
  bottom: 0;
  width: min(100%, 448px);
  padding: 20px 18px calc(18px + env(safe-area-inset-bottom));
  border-radius: 16px 16px 0 0;
  background: #fff;
  box-shadow: 0 -18px 44px rgba(15, 23, 42, .18);
  transform: translateX(-50%);
}

.contact-close {
  position: absolute;
  right: 14px;
  top: 14px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid #dbe7f7;
  border-radius: 999px;
  background: #f8fbff;
  color: #475569;
  font-size: 22px;
  line-height: 1;
}

.contact-sheet h2 {
  margin-bottom: 8px;
  padding-right: 40px;
}

.contact-desc {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 15px;
}

.contact-options {
  display: grid;
  gap: 10px;
}

.contact-option {
  display: grid;
  gap: 4px;
  min-height: 66px;
  padding: 13px 14px;
  border: 1px solid rgba(15, 23, 42, .08);
  border-radius: var(--radius);
  background: #f8fbff;
  box-shadow: var(--shadow-soft);
}

.contact-option:first-child {
  background: linear-gradient(135deg, #1677ff, #0b4fb8);
  color: #fff;
}

.contact-option strong {
  font-size: 17px;
}

.contact-option span {
  color: #64748b;
  font-size: 13px;
}

.contact-option:first-child span {
  color: rgba(255, 255, 255, .78);
}

.contact-qr {
  display: grid;
  grid-template-columns: 76px 1fr;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding: 10px;
  border: 1px dashed #cfe0f6;
  border-radius: var(--radius);
  background: #fbfdff;
}

.contact-qr img {
  width: 76px;
  height: 76px;
  border-radius: 6px;
  object-fit: cover;
}

.contact-qr span,
.contact-tip {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.contact-tip {
  min-height: 20px;
  margin: 10px 0 0;
  color: #dc2626;
}

@media (max-width: 360px) {
  h1 {
    font-size: 31px;
  }

  .hero-actions,
  .bottom-cta {
    grid-template-columns: 1fr;
  }

  .phone-stage {
    padding-bottom: 136px;
  }
}