/* ============ 通用版块 ============ */
.sec {
  padding: 84px 0;
}
.sec-head {
  margin-bottom: 40px;
}

/* ============ About ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 64px;
  align-items: center;
}
.about-media {
  position: relative;
}
.about-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.about-badge {
  position: absolute;
  left: 0;
  bottom: 26px;
  background: rgba(17, 32, 58, 0.92);
  color: #fff;
  padding: 22px 30px 22px 26px;
  max-width: 62%;
  display: flex;
  flex-direction: column;
}
.about-badge span {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.85);
}
.about-badge strong {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.05;
  margin: 2px 0;
}
.about-text .body-copy {
  margin: 6px 0 34px;
}
.about-text .sec-h2 {
  margin-bottom: 18px;
}

/* ============ 统计条 ============ */
.stats {
  background: #f6f8fb;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-top: 44px;
  padding-bottom: 44px;
}
.stat-cell {
  text-align: center;
  border-right: 1px solid #e3e8f0;
  padding: 6px 12px;
}
.stat-cell:last-child {
  border-right: 0;
}
.stat-line {
  color: var(--primary);
  font-weight: 800;
  font-size: 42px;
  line-height: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}
.stat-line .plus {
  font-size: 26px;
  margin-left: 2px;
  margin-top: 4px;
}
.stat-label {
  display: block;
  margin-top: 12px;
  font-size: 14.5px;
  color: #666;
}

/* ============ What We Do ============ */
.head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 46px;
}
.head-row .sec-head {
  margin-bottom: 0;
}
.card-grid.c4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.pcard-img img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #f2f4f7;
  transition: transform 0.35s ease;
}
.pcard-img {
  overflow: hidden;
}
.pcard:hover .pcard-img img {
  transform: scale(1.045);
}
.pcard-title {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.7;
  color: #333;
}

/* ============ 使命大句 ============ */
.mission-sec {
  position: relative;
  background: #f3f5f8;
  overflow: hidden;
  text-align: center;
  padding: 96px 0;
}
.mission-outline {
  position: absolute;
  inset: auto 0;
  font-size: 190px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(59, 122, 219, 0.14);
  white-space: nowrap;
  line-height: 1;
  user-select: none;
  transform: translateY(14%);
  bottom: -20px;
  opacity: 0.85;
}
.mission-inner {
  position: relative;
  max-width: 980px;
}
.bars {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 26px;
}
.bars span {
  width: 44px;
  height: 4px;
  background: var(--primary);
}
.mission-text {
  color: var(--heading);
  font-size: 27px;
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.01em;
}

/* ============ One Stop ============ */
.onestop-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 70px;
  align-items: center;
}
.onestop-text .sec-h2 {
  max-width: 520px;
}
.steps {
  margin: 34px 0 40px;
}
.step {
  display: flex;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid var(--line);
  padding: 13px 0;
}
.step-no {
  flex: none;
  width: 46px;
  height: 46px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.step-name {
  font-size: 16.5px;
  font-weight: 600;
  color: #333;
}
.onestop-media {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  align-items: stretch;
}
.onestop-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ============ Application ============ */
.app-intro {
  margin-bottom: 42px;
  max-width: 760px;
}
.app-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 34px;
  align-items: start;
}
.app-tabs {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.app-tabs button {
  text-align: left;
  background: none;
  border: 0;
  border-left: 3px solid transparent;
  padding: 15px 18px;
  font-size: 16px;
  font-weight: 600;
  color: #444;
  transition: all 0.2s;
}
.app-tabs button:hover {
  color: var(--primary);
  background: #f6f9fe;
}
.app-tabs button.active {
  color: var(--primary);
  border-left-color: var(--primary);
  background: #f0f5fd;
}
.app-stage {
  position: relative;
  min-height: 430px;
  background: #eef1f5;
}
.app-stage img {
  width: 100%;
  height: 100%;
  min-height: 430px;
  object-fit: cover;
}
.app-cap {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 560px;
  background: rgba(59, 122, 219, 0.92);
  color: #fff;
  font-size: 14.5px;
  line-height: 1.8;
  padding: 22px 26px;
  margin: 0;
}

/* ============ Advantages ============ */
.adv-intro {
  margin-bottom: 44px;
}
.adv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.adv-card {
  border: 1px solid var(--line);
  padding: 40px 38px 46px;
  background: #fff;
  transition: box-shadow 0.25s, transform 0.25s;
}
.adv-card:hover {
  box-shadow: 0 16px 40px rgba(18, 18, 18, 0.08);
  transform: translateY(-3px);
}
.adv-card svg {
  color: var(--primary);
  margin-bottom: 18px;
}
.adv-card h3 {
  color: var(--heading);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}
.adv-card p {
  font-size: 14.5px;
  line-height: 1.85;
}
.adv-link-row {
  text-align: center;
  margin-top: 44px;
}

/* ============ Success Cases ============ */
.case-sec {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
}
.case-left {
  background: var(--primary-deep);
  color: #fff;
  padding: 84px 7vw;
  display: flex;
  align-items: center;
}
.case-rule {
  display: block;
  width: 64px;
  height: 2px;
  background: rgba(255, 255, 255, 0.7);
  margin: 10px 0 26px;
}
.case-line {
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.86);
  margin-top: 6px;
  max-width: 520px;
}
.case-right img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}

/* ============ Partners ============ */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.partner-cell {
  height: 128px;
  border: 1px solid var(--line);
  background: #fbfcfe;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #c3cbd8;
}

/* ============ Inquiry ============ */
.inquiry-sec {
  background: #f6f8fb;
}
.inquiry-head {
  text-align: center;
  margin-bottom: 50px;
}
.inquiry-sub {
  font-size: 16px;
  margin-top: -8px;
}
.inquiry-form {
  max-width: 760px;
  margin: 0 auto;
}
.field {
  margin-bottom: 22px;
}
.field-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
.field-top label {
  font-size: 14.5px;
  font-weight: 600;
  color: #333;
}
.field-top label em {
  color: #e03a2e;
  font-style: normal;
  margin-left: 3px;
}
.counter {
  font-size: 12px;
  color: #9aa3af;
}
.field input,
.field textarea,
.code-phone select,
.code-phone input {
  width: 100%;
  border: 1px solid #d8dee8;
  background: #fff;
  border-radius: 0;
  outline: none;
  padding: 0 16px;
  height: 50px;
  transition: border-color 0.2s;
}
.field textarea {
  height: auto;
  padding: 14px 16px;
  resize: vertical;
}
.field input:focus,
.field textarea:focus,
.code-phone select:focus,
.code-phone input:focus {
  border-color: var(--primary);
}
.field.has-error input,
.field.has-error textarea {
  border-color: #e03a2e;
}
.field-row.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.code-phone {
  display: flex;
  gap: 10px;
}
.code-phone select {
  width: 120px;
  flex: none;
}
.form-error {
  color: #e03a2e;
  font-size: 13.5px;
  margin: -6px 0 16px;
}
.submit-row {
  text-align: center;
  margin-top: 8px;
}
.btn-submit {
  padding: 0 74px;
}
.inquiry-ok {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  padding: 60px 40px;
}
.inquiry-ok svg {
  color: #27a35b;
  margin: 0 auto 18px;
}
.inquiry-ok h3 {
  color: var(--heading);
  font-size: 24px;
  margin-bottom: 10px;
}
.inquiry-ok p {
  margin-bottom: 26px;
}

/* ============ 响应式 ============ */
@media (max-width: 1199.98px) {
  .card-grid.c4 {
    gap: 18px;
  }
  .about-grid,
  .onestop-grid {
    gap: 44px;
  }
  .case-left {
    padding: 64px 48px;
  }
}
@media (max-width: 991.98px) {
  .sec {
    padding: 60px 0;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-badge {
    max-width: 68%;
  }
  .stats-row {
    grid-template-columns: 1fr;
    padding: 26px 0;
  }
  .stat-cell {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 14px;
    border-right: 0;
    border-bottom: 1px solid #e3e8f0;
    padding: 22px 12px;
  }
  .stat-cell:last-child {
    border-bottom: 0;
  }
  .stat-line {
    font-size: 38px;
    justify-content: flex-start;
  }
  .stat-label {
    margin-top: 0;
    text-align: left;
  }
  .card-grid.c4 {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .head-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .head-row .btn-solid {
    display: none;
  }
  .mission-sec {
    padding: 70px 0;
  }
  .mission-outline {
    font-size: 110px;
    bottom: -6px;
  }
  .mission-text {
    font-size: 21px;
  }
  .onestop-grid {
    grid-template-columns: 1fr;
  }
  .steps {
    margin-bottom: 32px;
  }
  .app-layout {
    grid-template-columns: 1fr;
  }
  .app-tabs {
    flex-direction: row;
    overflow-x: auto;
    gap: 0;
  }
  .app-tabs button {
    border-left: 0;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
    padding: 12px 16px;
  }
  .app-tabs button.active {
    border-bottom-color: var(--primary);
  }
  .app-stage,
  .app-stage img {
    min-height: 300px;
  }
  .app-cap {
    max-width: none;
    right: 0;
    font-size: 13.5px;
    padding: 16px 18px;
  }
  .adv-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .adv-card {
    background: var(--primary);
    border-color: var(--primary);
    padding: 34px 30px;
    text-align: center;
  }
  .adv-card svg {
    color: #fff;
  }
  .adv-card h3 {
    color: #fff;
  }
  .adv-card p {
    color: rgba(255, 255, 255, 0.92);
  }
  .case-sec {
    grid-template-columns: 1fr;
  }
  .case-left {
    padding: 54px 30px;
  }
  .case-right img {
    min-height: 0;
    aspect-ratio: 16 / 9;
  }
  .partner-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .partner-cell {
    height: 96px;
  }
  .field-row.two {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .container {
    padding: 0 18px;
  }
}