:root {
  --ink: #12284a;
  --ink-soft: #29486d;
  --muted: #6e8298;
  --line: #dce6f0;
  --page: #f5f8fc;
  --paper: #ffffff;
  --blue: #1268f3;
  --blue-deep: #0755cf;
  --blue-pale: #edf5ff;
  --sky: #b9d9f8;
  --teal: #2fb4a7;
  --violet: #6d59e7;
  --shadow: 0 18px 44px rgba(33, 78, 125, 0.08);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

.main {
  position: relative;
  min-height: 100vh;
}

.footerv3 {
  position: relative !important;
  bottom: auto !important;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: #fff;
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: -2;
  inset: 0;
  pointer-events: none;
  opacity: .46;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .92), transparent 46%),
    repeating-linear-gradient(90deg, rgba(41, 93, 145, .025) 0, rgba(41, 93, 145, .025) 1px, transparent 1px, transparent 48px);
  content: "";
}

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

.section-shell {
  width: min(1280px, calc(100% - 48px));
  margin: 0 auto;
}

.section-inner {
  /* width: 100%; */
  width: 1280px;
  margin: 0 auto;
  /* padding-left: max(32px, calc((100% - 1600px) / 2)); */
  /* padding-right: max(32px, calc((100% - 1600px) / 2)); */
  box-sizing: border-box;
}

.section-pad {
  padding: 52px 0 64px;
}

/* Header */
.site-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1280px, calc(100% - 24px));
  height: 88px;
  margin: 0 auto;
  padding: 0 6px;
  border-bottom: 1px solid rgba(211, 224, 237, .84);
  background: rgba(255, 255, 255, .86);
}

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

.brand-logo {
  display: block;
  width: 38px;
  height: 38px;
  border-radius: 9px;
}

.brand-name {
  color: #0F2E98;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .08em;
}

.brand-divider {
  width: 1px;
  height: 17px;
  margin: 0 3px 0 6px;
  background: #c6d6e5;
}

.brand-caption {
  color: #64748B;
  font-size: 12px;
}

.back-link {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--blue-deep);
  font-size: 14px;
  /* font-weight: 600; */
}

.back-link-icon {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  transition: transform .2s ease;
}

.back-link:hover .back-link-icon {
  transform: translateX(3px);
}

/* Hero */
.hero {
  position: relative;
  /* isolation: isolate; */
  height: 433px;
  background: url(./assets/hero_bg.jpg);
  background-size: cover;
  /* overflow: hidden;
  border-bottom: 1px solid #ccddec;
  background-color: #f5f9ff;
  background-image: url('./assets/bck.png');
  background-repeat: no-repeat;
  background-position: right center;
  background-size: 100% 100%; */
}

.hero::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  content: "";
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
}

.hero-copy {
  position: relative;
  z-index: 3;
  flex: 1 1 auto;
  min-width: 0;
  padding-left: 10px;
}

.hero-subtitle {
  height: 36px;
  line-height: 36px;
  color:#0F2E98;
  font-weight: 700;
  font-size: 24px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #1D4ED8;
  font-weight: 700;
  font-size: 12px;
  margin: 4px 0 8px;
}

.hero-eyebrow-line {
  display: inline-block;
  width: 42px;
  height: 1.5px;
  background: var(--blue);
  flex-shrink: 0;
}

.hero-tt {
  height: 86px;
  line-height: 86px;
  display: flex;
  margin: 20px 0;
  color:#0F2E98;
  font-size: 78px;
  font-weight: 700;
}

.hero-tt-accent {
  color:#1D4ED8;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  height: 24px;
  gap: 10px;
}

.hero-tags >i{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.hero-tag {
  position: relative;
  color: #64748B;
  font-size: 12px;
  font-weight: 500;
  padding-left: 14px;
}
.hero-tag::before {
  position: absolute;
  content: "";
  background: #1D4ED8;
  width:7px;
  height:7px;
  left:0;
  top:50%;
  transform: translateY(-50%);
  border-radius: 50%;
}
.hero-tag:last-child::before {
 background: #1F9A8B;
}

/* .hero-tag + .hero-tag {
  margin-left: 16px;
} */


/* Capability (优势能力) */
.capability-section {
  position: relative;
  padding-top: 56px;
  padding-bottom: 56px;
  background: linear-gradient(180deg, var(--page) 0%, #ffffff 60%, var(--page) 100%);
}

.capability-section > .module-heading,
.process-section > .module-heading {
  text-align: left;
}

.module-heading {
  position: relative;
  z-index: 1;
}

.module-title {
  display: block;
  margin: 0;
  color: var(--ink);
  font-size: 25px;
  font-weight: 750;
  letter-spacing: -.05em;
  line-height: 1.2;
}

.module-subtitle {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.capability-list {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.capability-card {
  position: relative;
  padding: 28px 30px 26px;
  border: 1px solid #cfdcec;
  border-radius: 14px;
  background: linear-gradient(160deg, #ffffff 0%, #f5faff 100%);
  box-shadow: 0 6px 18px rgba(33, 78, 125, .06);
  transition: transform .25s ease, box-shadow .25s ease;
  overflow: hidden;
}

.capability-card::before {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  content: "";
}

.capability-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 50px rgba(33, 78, 125, .12);
}

.capability-card.is-blue {
  background: linear-gradient(160deg, #eaf3ff 0%, #f3f8ff 100%);
  border-color: #b9d3f1;
}

.capability-card.is-blue::before { background: linear-gradient(90deg, #1576ee, #6fa8f3); }

.capability-card.is-blue .capability-icon {
  color: #1576ee;
  border-color: #cfe0f6;
  background: linear-gradient(145deg, #e6f1ff, #d4e6fc);
}

.capability-card.is-mint {
  background: linear-gradient(160deg, #eaf8f4 0%, #f3fbfa 100%);
  border-color: #b8e1dc;
}

.capability-card.is-mint::before { background: linear-gradient(90deg, #159d91, #6dc7bf); }

.capability-card.is-mint .capability-icon {
  color: #159d91;
  border-color: #cfeae6;
  background: linear-gradient(145deg, #e3f8f3, #cdeee8);
}

.capability-card.is-violet {
  background: linear-gradient(160deg, #f1ebff 0%, #f7f3ff 100%);
  border-color: #c9bef0;
}

.capability-card.is-violet::before { background: linear-gradient(90deg, #6851dd, #a394e9); }

.capability-card.is-violet .capability-icon {
  color: #6851dd;
  border-color: #ddd5f3;
  background: linear-gradient(145deg, #f0ecff, #e3dbfd);
}

.capability-card.is-teal {
  background: linear-gradient(160deg, #e6f6f8 0%, #f0fafb 100%);
  border-color: #b8dde2;
}

.capability-card.is-teal::before { background: linear-gradient(90deg, #1aa9c5, #65c1d6); }

.capability-card.is-teal .capability-icon {
  color: #1aa9c5;
  border-color: #cfe7ee;
  background: linear-gradient(145deg, #e6f5f8, #d0ebf1);
}

.capability-card::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 140px;
  height: 140px;
  pointer-events: none;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(227, 240, 254, .48), transparent 68%);
  content: "";
}

.capability-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 50px rgba(33, 78, 125, .12);
}

.capability-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--blue);
  border: 1px solid #cfe1f5;
  border-radius: 10px;
  background: linear-gradient(145deg, #f3f8ff, #eaf3ff);
}

.capability-icon-svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.capability-icon-img {
  display: block;
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.capability-title {
  position: relative;
  margin: 14px 0 6px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.4;
}

.capability-desc {
  position: relative;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

/* Process timeline (接入流程) */
.process-section {
  position: relative;
  padding-top: 48px;
  padding-bottom: 56px;
  background: #ffffff;
}

.process-timeline {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  margin-top: 36px;
}

.process-timeline::before {
  position: absolute;
  top: 11px;
  left: 11px;
  right: 0;
  height: 1px;
  background: #4a91d6;
  content: "";
}

.process-step {
  position: relative;
  padding-top: 0;
}

.process-marker {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.process-marker .dot {
  position: relative;
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 1.5px solid var(--blue);
  border-radius: 50%;
  background: #ffffff;
  flex-shrink: 0;
}

.process-marker .dot::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--blue);
  content: "";
  transform: translate(-50%, -50%);
}

.process-marker .num {
  position: relative;
  z-index: 2;
  display: inline-block;
  padding: 2px 6px;
  color: var(--blue);
  background: #ffffff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

.process-step.is-final .process-marker .dot {
  border-color: var(--teal);
}

.process-step.is-final .process-marker .dot::after {
  background: var(--teal);
}

.process-step.is-final .process-marker .num {
  position: relative;
  z-index: 2;
  display: inline-block;
  padding: 2px 6px;
  color: var(--teal);
  background: #ffffff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

.process-title {
  margin: 16px 0 5px;
  color: var(--blue);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.4;
}

.process-step.is-final .process-title {
  color: var(--teal);
}

.process-desc {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
}

/* Cases */
.cases-section {
  position: relative;
  isolation: isolate;
  padding-top: 56px;
  padding-bottom: 64px;
  background: linear-gradient(180deg, var(--page) 0%, #ffffff 100%);
  border-top: 1px solid var(--line);
}

.cases-section::after {
  display: none;
}

.cases-heading {
  margin-bottom: 22px;
}

.case-tabs {
  display: flex;
  align-items: center;
  gap: 34px;
  border-bottom: 1px solid var(--line);
}

.case-tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px 13px;
  color: #7b8da1;
  border: 0;
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  transition: color .2s ease;
}

.case-tab-num {
  display: inline-block;
  padding: 2px 7px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .12em;
  border: 1px solid #d6e1ee;
  border-radius: 5px;
  background: rgba(237, 245, 255, .6);
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}

.case-tab:hover .case-tab-num,
.case-tab.is-active .case-tab-num {
  color: var(--blue-deep);
  border-color: rgba(74, 145, 214, .42);
  background: rgba(237, 245, 255, .92);
}

.case-tab::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--blue);
  content: "";
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .2s ease;
}

.case-tab:hover,
.case-tab.is-active {
  color: var(--blue-deep);
}

.case-tab.is-active::after {
  transform: scaleX(1);
}

.case-panels {
  margin-top: 24px;
}

.case-panel {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(290px, 1.22fr);
  min-height: 310px;
  overflow: hidden;
  border: 1px solid #b9cce0;
  border-radius: 14px;
  background: linear-gradient(135deg, #eaf3fd 0%, #f3f8ff 100%);
  box-shadow: 0 14px 32px rgba(32, 76, 121, .08);
}

.case-panel[data-case-panel="workbench"] {
  border-color: #b8d4f3;
  background: linear-gradient(135deg, #deedff 0%, #e8f2ff 100%);
}

.case-panel[data-case-panel="desktop"] {
  border-color: #cfc5ec;
  background: linear-gradient(135deg, #eeeaff 0%, #f1ecff 100%);
}

.case-panel[data-case-panel="web"] {
  border-color: #b8e2dc;
  background: linear-gradient(135deg, #e2f8f4 0%, #ecfaf7 100%);
}

.case-panel[hidden] {
  display: none;
}

.case-panel-visual,
.case-story-visual {
  min-height: 310px;
  padding: 14px;
  background: linear-gradient(145deg, #edf5fd, #f7fbff);
}

.case-panel[data-case-panel="workbench"] .case-panel-visual,
.case-panel[data-case-panel="workbench"] .case-story-visual {
  background: linear-gradient(145deg, #d8e8ff, #eaf2ff);
}

.case-panel[data-case-panel="desktop"] .case-panel-visual,
.case-panel[data-case-panel="desktop"] .case-story-visual {
  background: linear-gradient(145deg, #e4dcff, #ece4ff);
}

.case-panel[data-case-panel="web"] .case-panel-visual,
.case-panel[data-case-panel="web"] .case-story-visual {
  background: linear-gradient(145deg, #d0f0e8, #def5ee);
}

.case-image-frame {
  width: 100%;
  height: 100%;
  padding: 2px;
  overflow: hidden;
  border: 1px solid #c6d8e8;
  border-radius: 10px;
  background: #fff;
  box-shadow: inset 0 0 0 5px rgba(255, 255, 255, .88), 0 4px 12px rgba(55, 100, 148, .06);
}

.case-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 7px;
}

.case-panel-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 32px 39px;
}

.case-panel-label {
  display: block;
  margin-bottom: 14px;
  color: var(--blue-deep);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
}

.case-title {
  margin: 0 0 11px;
  color: var(--ink);
  font-size: 25px;
  font-weight: 750;
  letter-spacing: -.045em;
  line-height: 1.35;
}

.case-desc {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.85;
}

.case-panel-tag {
  display: inline-block;
  align-self: flex-start;
  margin-top: 22px;
  padding: 6px 14px;
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .02em;
  border: 1px solid rgba(74, 145, 214, .35);
  border-radius: 999px;
  background: rgba(255, 255, 255, .82);
}

.case-panel--stacked {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 0;
}

.case-story {
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(290px, 1.22fr);
  min-height: 250px;
}

.case-story + .case-story {
  border-top: 1px solid var(--line);
}

.case-story-visual {
  min-height: 250px;
}

.case-story .case-panel-content {
  border-left: 1px solid #edf2f7;
}

/* Footer */
.site-footer {
  border-top: 1px solid #e6eef7;
  background: linear-gradient(180deg, #f7fafd 0%, #eef4fc 100%);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1280px, calc(100% - 24px));
  height: 72px;
  margin: 0 auto;
  padding: 0 6px;
}

.footer-inner .brand-logo {
  width: 28px;
  height: 28px;
}

.footer-inner .brand-name {
  font-size: 16px;
}

.footer-page {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .06em;
}

/* Entrance motion */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .55s ease, transform .55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 {
  transition-delay: .06s;
}

.reveal-delay-2 {
  transition-delay: .12s;
}

.reveal-delay-3 {
  transition-delay: .18s;
}

.reveal-delay-4 {
  transition-delay: .24s;
}

/* Responsive */
@media (max-width: 1040px) {
  .hero-inner {
    gap: 18px;
  }

  .capability-list {
    gap: 18px;
  }
}

@media (max-width: 820px) {
  .hero {
    height: 260px;
  }

  .hero-inner {
    gap: 4px;
  }

  .hero-subtitle {
    font-size: 13px;
  }

  .module-title {
    font-size: 22px;
  }

  .capability-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 15px;
  }

  .capability-icon {
    width: 43px;
    height: 43px;
  }

  .capability-icon-svg {
    width: 22px;
    height: 22px;
  }
}

@media (max-width: 700px) {
  .section-shell {
    width: calc(100% - 32px);
  }

  .site-header {
    width: 100%;
    height: 64px;
    padding: 0 16px;
  }

  .brand-divider,
  .brand-caption {
    display: none;
  }

  .hero {
    height: 240px;
  }

  .hero-inner {
    display: block;
    padding-top: 38px;
  }

  .hero-copy {
    padding-left: 0;
  }

  .hero-subtitle {
    font-size: 13px;
  }

  .capability-section {
    padding-top: 32px;
    padding-bottom: 32px;
  }

  .process-section {
    padding-top: 12px;
    padding-bottom: 32px;
  }

  .capability-list {
    grid-template-columns: 1fr;
  }

  .process-timeline {
    grid-template-columns: 1fr 1fr;
    gap: 24px 18px;
  }

  .process-timeline::before {
    display: none;
  }

  .case-tabs {
    justify-content: space-between;
    gap: 10px;
  }

  .cases-section {
    padding-top: 34px;
    padding-bottom: 48px;
  }

  .case-tab {
    padding-right: 2px;
    padding-left: 2px;
    font-size: 13px;
  }

  .case-panel,
  .case-story {
    grid-template-columns: 1fr;
  }

  .case-panel {
    min-height: 0;
  }

  .case-panel-visual,
  .case-story-visual {
    aspect-ratio: 16 / 9;
    min-height: 0;
  }

  .case-panel-content {
    padding: 18px 19px 22px;
  }

  .case-title {
    font-size: 20px;
  }

  .case-story .case-panel-content {
    border-top: 1px solid #edf2f7;
    border-left: 0;
  }
}

@media (max-width: 390px) {
  .hero {
    height: 228px;
  }

  .hero-inner {
    padding-top: 49px;
  }

  .hero-subtitle {
    font-size: 12.5px;
  }

  .case-panel-visual,
  .case-story-visual {
    padding: 10px;
  }
}

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

  .reveal,
  .case-panel,
  .back-link-icon {
    opacity: 1;
    transform: none;
    transition: none;
  }
}