:root {
  --blue: #0a58ff;
  --blue-deep: #0b2f89;
  --text: #0a1f52;
  --muted: #61709a;
  --line: #dbe8ff;
  --bg-soft: #f7fbff;
  --card: #ffffff;
  --blue-top: #2c86ff;
  --elev-1: 0 8px 18px rgba(15, 86, 255, 0.12);
  --elev-2: 0 14px 32px rgba(15, 86, 255, 0.16);
}

* { box-sizing: border-box; }
html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}
body { margin: 0; padding: 0; }
body {
  font-family: "Noto Sans SC", sans-serif;
  color: var(--text);
  background: #fff;
}

.container { width: min(1160px, 94vw); margin: 0 auto; }
a { text-decoration: none; color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid #edf3ff;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(11, 57, 160, 0.06);
}

.nav-wrap {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  font-synthesis: none;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -.02em;
}

.logo span {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
}

.logo img {
  width: 46px;
  height: 46px;
  border-radius: 12px;
}

.logo em {
  font-style: normal;
  font-size: 18px;
  font-weight: 800;
  margin-left: 0;
}

.main-nav {
  display: flex;
  gap: 32px;
  font-size: 15px;
  color: #253661;
  font-weight: 400;
  margin-left: auto;
  margin-right: 12px;
}

.main-nav a:hover { color: var(--blue); }

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border-radius: 12px;
  border: 2px solid transparent;
  cursor: pointer;
  font-weight: 500;
  transition: transform .22s ease, box-shadow .22s ease, background-color .22s ease, color .22s ease, border-color .22s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 6px 14px rgba(10, 88, 255, 0.18);
}

.btn-primary:hover {
  background: #0a55f2;
  box-shadow: 0 10px 20px rgba(10, 88, 255, 0.24);
}

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

.btn-outline:hover {
  background: #eef5ff;
  box-shadow: 0 8px 16px rgba(10, 88, 255, 0.12);
}

.btn-light {
  background: #fff;
  color: var(--blue);
}

.btn-light:hover {
  box-shadow: 0 8px 16px rgba(12, 58, 172, 0.14);
}

.nav-cta {
  padding: 10px 18px;
  font-size: 15px;
}

.big {
  min-width: 220px;
  padding: 12px 18px;
  font-size: 18px;
}

.section { padding: 34px 0; }

#issues,
#compare {
  scroll-margin-top: 86px;
}

#issues-title,
#compare-title {
  scroll-margin-top: 120px;
}

.hero {
  background:
    linear-gradient(90deg, rgba(255,255,255,0.82) 0%, rgba(255,255,255,0.58) 42%, rgba(255,255,255,0.12) 70%),
    url("../images/hero-bg.png") right center / cover no-repeat;
  border-bottom: 1px solid #e9f0ff;
  padding: 18px 0 24px;
}

.notice {
  width: max-content;
  margin: 0 auto 16px;
  color: var(--blue);
  border: 1px solid #d1e1ff;
  background: #fff;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  padding: 6px 16px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 600px;
  gap: 22px;
  align-items: start;
}

.hero-left {
  margin-left: 50px;
}

.hero-right {
  display: flex;
  justify-content: flex-end;
  padding-top: 24px;
  transform: translateX(-70px);
}

.chip {
  display: inline-block;
  background: #eef5ff;
  border: 1px solid #d7e6ff;
  border-radius: 999px;
  color: var(--blue);
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 700;
}

.hero h1 {
  margin: 14px 0 12px;
  font-size: clamp(34px, 3.7vw, 54px);
  line-height: 1.14;
  letter-spacing: -.02em;
}

.hero-line-1 {
  font-size: calc(1em - 5px);
}

.hero p {
  margin: 0;
  font-size: 17px;
  color: #334675;
  line-height: 1.5;
}

.hero p.hero-inline-note {
  margin-top: 10px;
  font-size: 14px;
  color: #275fe9;
  white-space: nowrap;
}

.quick-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(4, 116px);
  gap: 10px;
  justify-content: start;
}

.quick-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(180deg, #ffffff, #f8fbff);
  color: #1a326f;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.15;
  padding: 8px 6px;
  box-shadow: 0 6px 16px rgba(22, 88, 218, 0.08);
}

.qi-icon {
  display: block;
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.quick-grid .quick-item:nth-child(3) .qi-icon {
  width: 32px;
  height: 32px;
}

.hero-actions {
  margin-top: 18px;
  display: flex;
  gap: 12px;
}

.hero-what-btn {
  color: #111;
  font-weight: 500;
}

.hero-meta {
  margin-top: 14px;
  font-size: 14px;
  color: #334675;
}

.assistant-card {
  background: linear-gradient(180deg, #ffffff, #fbfdff);
  border: 1px solid #d9e7ff;
  border-radius: 14px;
  box-shadow: 0 12px 26px rgba(11, 96, 255, 0.14), inset 0 1px 0 rgba(255,255,255,0.72);
  padding: 0 0 8px;
  overflow: hidden;
  width: auto;
  max-width: 600px;
  margin-left: auto;
  height: auto;
}

.assistant-windowbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 14px;
  border-bottom: 1px solid #e8f0ff;
}

.assistant-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.assistant-shield {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  object-fit: cover;
}

.assistant-winbtns {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #7384ab;
  font-weight: 600;
  font-size: 17px;
}

.assistant-head {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 0;
}

.assistant-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border: 1px solid #e9f1ff;
  border-radius: 10px;
  margin: 10px 12px 0;
  overflow: hidden;
  background: #ffffff;
  box-shadow: 0 6px 16px rgba(26, 92, 230, 0.08);
}

.assistant-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #edf3ff;
  padding: 10px 12px;
  font-size: 14px;
}

.assistant-list li:last-child {
  border-bottom: 0;
}

.assistant-item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.assistant-item i {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: #20b56d;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-style: normal;
  font-size: 14px;
  font-weight: 700;
}

.assistant-list b {
  color: #16b760;
  font-size: 14px;
  font-weight: 500;
}

.assistant-ok {
  margin: 10px 12px 13px;
  border: 1px solid #bdeecf;
  background: #f3fff6;
  border-radius: 10px;
  color: #0f9252;
  padding: 11px 10px 12px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 5px 9px;
  align-items: center;
  box-shadow: 0 8px 18px rgba(24, 167, 96, 0.12);
}

.ok-check {
  width: 32px;
  height: 32px;
  border: 2px solid #15b45f;
  color: #15b45f;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.assistant-ok strong {
  display: block;
  line-height: 1.1;
  font-size: 18px;
}

.assistant-ok p {
  margin: 2px 0 0;
  color: #5f7497;
  font-size: 14px;
}

.assistant-btn {
  grid-column: 1 / -1;
  width: 100%;
  max-width: none;
  margin: 10px 0 0;
  padding: 12px;
  font-size: 15px;
  font-weight: 550;
  letter-spacing: 0;
  border-radius: 9px;
  border: 0;
  appearance: none;
}

h2 {
  margin: 0;
  text-align: center;
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.15;
}

.sub {
  text-align: center;
  margin: 6px 0 18px;
  color: #7582a6;
  font-size: 16px;
}

.issues .sub {
  color: #334675;
}

.automation .sub {
  color: #334675;
}

.card-row {
  display: grid;
  gap: 12px;
}

.card-row.four { grid-template-columns: repeat(4, 1fr); }
.card-row.three { grid-template-columns: repeat(3, 1fr); }

.mini-card,
.feature-card,
.use-card,
.plan {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff, #fbfdff);
  border-radius: 12px;
  box-shadow: var(--elev-1), inset 0 1px 0 rgba(255,255,255,0.85);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.mini-card:hover,
.feature-card:hover {
  transform: translateY(-3px);
  border-color: #c8ddff;
  box-shadow: 0 12px 24px rgba(15, 86, 255, 0.16), inset 0 1px 0 rgba(255,255,255,0.9);
}

.mini-card .card-icon-img,
.feature-card .card-icon-img {
  transition: transform .22s ease;
}

.mini-card:hover .card-icon-img,
.feature-card:hover .card-icon-img {
  transform: scale(1.06);
}

.mini-card {
  padding: 14px;
  display: grid;
  grid-template-columns: 54px 1fr;
  column-gap: 14px;
  align-items: start;
}

.mini-card h3 {
  grid-column: 2;
  margin: 0;
  font-size: 17px;
  line-height: 1.3;
}

.mini-card p {
  grid-column: 2;
  margin: 6px 0 0;
  color: #334675;
  font-size: 14px;
}

.card-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
}

.card-icon-img {
  width: 53px;
  height: 53px;
  object-fit: contain;
  display: block;
  margin-top: 0;
  grid-row: 1 / span 2;
  align-self: center;
}

.card-icon.red { background: #ff5d5d; }
.card-icon.orange { background: #ff9b29; }
.card-icon.purple { background: #6a58ff; }
.card-icon.blue { background: #1677ff; }
.card-icon.green { background: #24b36b; }
.card-icon.cyan { background: #17a2ff; }
.card-icon.yellow { background: #ffb700; color: #19315f; }

.linkline {
  text-align: center;
  color: var(--blue);
  font-size: 14px;
  font-weight: 400;
  margin-top: 12px;
}

.feature-card {
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 54px 1fr;
  column-gap: 14px;
  row-gap: 2px;
  align-content: center;
  align-items: start;
  min-height: 102px;
}

.feature-card h3 {
  grid-column: 2;
  margin: 0;
  font-size: 17px;
  line-height: 1.2;
}

.feature-card p {
  grid-column: 2;
  margin: 8px 0 0;
  color: #334675;
  font-size: 14px;
  line-height: 1.2;
}

.automation,
.uses {
  position: relative;
  border-top: 1px solid #e9f1ff;
  border-bottom: 1px solid #e9f1ff;
}

.automation {
  background: linear-gradient(180deg, #fcfeff 0%, #f7fbff 100%);
}

.uses {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.compare-section { padding-top: 28px; }

.compare-table {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.compare-table .row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
}

.compare-table .row > div {
  border-right: 1px solid #edf3ff;
  border-bottom: 1px solid #edf3ff;
  padding: 8px 12px;
  font-size: 14px;
}

.compare-table .row > div:nth-child(1),
.compare-table .row > div:nth-child(2),
.compare-table .row > div:nth-child(3) {
  text-align: center;
}

.step-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
}

.compare-table .row.header > div {
  font-size: 15px;
  font-weight: 800;
  background: #f8fbff;
}

.compare-table .row > .active {
  color: var(--blue);
  font-weight: 700;
}

.compare-table .row.header > .active {
  background: var(--blue);
  color: #fff;
}

.compare-active-head {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-right: 42px !important;
}

.compare-like-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.compare-section .sub {
  color: #334675;
}

.use-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.use-card {
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 64px 1fr;
  column-gap: 14px;
  align-items: start;
}

.use-card h3 {
  grid-column: 2;
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
}

.use-card p {
  grid-column: 2;
  margin: 8px 0 0;
  max-width: 170px;
  font-size: 14px;
  color: #334675;
  line-height: 1.35;
}

.pricing-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.plan { padding: 18px; position: relative; }
.plan h3 { margin: 0; font-size: 22px; text-align: center; }
.plan .amount { text-align: center; font-size: 38px; font-weight: 800; margin: 8px 0 10px; }
.plan ul { margin: 0 0 14px; padding-left: 0; font-size: 14px; color: #4b5a84; list-style: none; }
.plan li + li { margin-top: 4px; }
.plan li::before {
  content: "✓";
  color: #23b56f;
  font-weight: 700;
  margin-right: 6px;
}
.plan .btn { width: 100%; padding: 10px; font-size: 16px; }

.plan.active {
  border-width: 2px;
  border-color: var(--blue);
  box-shadow: 0 12px 30px rgba(10, 88, 255, .15);
}

.hot {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--blue);
  color: #fff;
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 14px;
  font-weight: 700;
}

.price-note {
  margin-top: 12px;
  text-align: center;
  color: #60709a;
  font-size: 14px;
}

.faq { padding-top: 30px; }

.faq .container > h2 {
  margin-bottom: 18px;
}

.faq-wrap {
  max-width: 1240px;
  background: #fff;
  border: 1px solid #dbe8ff;
  border-radius: 12px;
  padding: 10px 12px 6px;
  box-shadow: 0 8px 20px rgba(12, 86, 230, 0.08);
}

.faq details {
  border-bottom: 1px solid #e5edff;
  padding: 10px 2px;
}

.faq details:last-of-type {
  border-bottom: 0;
}

.faq summary {
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  color: #213261;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-right: 4px;
}

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

.faq summary::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid #6f86b9;
  border-bottom: 2px solid #6f86b9;
  transform: rotate(45deg);
  transition: transform .2s ease;
  flex: 0 0 auto;
}

.faq details[open] summary::after {
  transform: rotate(-135deg);
}

.faq p {
  margin: 10px 0 0;
  color: #5e6d95;
  font-size: 14px;
}

.bottom-cta {
  padding: 18px 0 0;
}

.cta-box {
  border-radius: 16px;
  padding: 26px 20px 16px;
  text-align: center;
  color: #fff;
  background:
    linear-gradient(0deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.18)),
    linear-gradient(100deg, rgba(7, 58, 206, 0.38), rgba(0, 102, 255, 0.38)),
    url("../images/cta-bg-tech.png") center / cover no-repeat;
}

.cta-box h2 {
  color: #fff;
  margin: 0;
  font-size: clamp(30px, 3.3vw, 46px);
}

.cta-box p {
  margin: 6px 0 12px;
  font-size: 19px;
}

.cta-box .btn {
  font-size: 17px;
  padding: 10px 16px;
}

.cta-btn {
  min-width: 360px;
  max-width: 440px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  white-space: normal;
  line-height: 1.22;
}

.cta-btn-main {
  font-size: 19px;
  font-weight: 700;
}

.cta-btn-sub {
  font-size: 16px;
  font-weight: 500;
}

.cta-meta {
  margin-top: 10px;
  font-size: 14px;
  opacity: .95;
}

.site-footer {
  margin-top: 10px;
  background: linear-gradient(90deg, #041a4c, #031238);
  color: #dce9ff;
  padding: 16px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

.footer-logo strong { font-size: 22px; }
.footer-logo p { margin: 0; font-size: 14px; color: #9eb6e5; }

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
}

.footer-links a { color: #c0d7ff; }

.footer-links .footer-company {
  flex-basis: 100%;
  font-size: 14px;
  color: #9cb2df;
  line-height: 1.5;
  margin-top: 6px;
}

@media (max-width: 1200px) {
  .main-nav { display: none; }
  .hero-left { margin-left: 0; }
  .hero-grid,
  .card-row.four,
  .card-row.three,
  .use-grid,
  .pricing-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .big,
  .plan .btn,
  .cta-box .btn {
    font-size: 16px;
    min-width: 0;
    width: 100%;
  }

  .hero p,
  .sub,
  .slogan,
  .price-note,
  .cta-box p,
  .faq summary,
  .faq p,
  .hero-meta,
  .quick-item,
  .mini-card h3,
  .feature-card h3,
  .use-card h3,
  .feature-card p,
  .use-card p,
  .mini-card p,
  .plan ul,
  .compare-table .row > div,
  .footer-links,
  .footer-logo strong {
    font-size: 16px;
  }

  .plan .amount { font-size: 34px; }
  .cta-btn { min-width: 0; }
  .cta-btn-main { font-size: 17px; }
  .cta-btn-sub { font-size: 15px; }
  .hero h1 { font-size: 32px; }
  h2 { font-size: 26px; }
}