/* ============================================================
   网站建设推广页（/website-development）
   命名空间：wbd-
   ============================================================ */

.wbd-page {
  --wbd-blue: #426df9;
  --wbd-blue-deep: #2f52d0;
  --wbd-violet: #7c5cff;
  --wbd-cyan: #22d3ee;
  --wbd-ink: #0a1020;
  --wbd-ink-2: #101a31;
  --wbd-text: #1f2937;
  --wbd-muted: #667085;
  --wbd-line: #e6eaf3;
  --wbd-soft: #f5f8ff;
  --wbd-radius: 20px;
  --wbd-shadow: 0 22px 56px rgba(16, 34, 87, 0.10);
  --wbd-shadow-sm: 0 10px 26px rgba(16, 34, 87, 0.07);

  position: relative;
  color: var(--wbd-text);
  font-size: 16px;
  line-height: 1.75;
  background: #fff;
  overflow-x: clip;
}

.wbd-page * {
  box-sizing: border-box;
}

.wbd-page h1,
.wbd-page h2,
.wbd-page h3,
.wbd-page h4 {
  margin: 0;
  color: inherit;
  line-height: 1.28;
  letter-spacing: -0.01em;
}

.wbd-page p {
  margin: 0;
}

.wbd-page ul,
.wbd-page ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.wbd-shell {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 通用标签 ---------- */
.wbd-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--wbd-blue);
}

.wbd-eyebrow i {
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--wbd-blue), var(--wbd-cyan));
}

/* ---------- 按钮 ---------- */
.wbd-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 30px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
  overflow: hidden;
}

.wbd-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 25%, rgba(255, 255, 255, 0.45) 50%, transparent 75%);
  transform: translateX(-120%);
  transition: transform 0.6s ease;
}

.wbd-btn:hover::after {
  transform: translateX(120%);
}

.wbd-btn-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--wbd-blue), var(--wbd-violet));
  box-shadow: 0 16px 34px rgba(66, 109, 249, 0.32);
}

.wbd-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 42px rgba(66, 109, 249, 0.38);
}

.wbd-btn-ghost {
  color: #eaf1ff;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.06);
}

.wbd-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.wbd-btn-line {
  height: 48px;
  padding: 0 26px;
  color: var(--wbd-blue);
  border: 1px solid rgba(66, 109, 249, 0.35);
  background: #fff;
}

.wbd-btn-line:hover {
  background: var(--wbd-soft);
  transform: translateY(-2px);
}

.wbd-btn-ghost-light {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: transparent;
}

.wbd-btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

/* ---------- 首屏 ---------- */
.wbd-hero {
  position: relative;
  padding: 118px 0 132px;
  background:
    radial-gradient(circle at 82% 12%, rgba(66, 109, 249, 0.34), transparent 46%),
    radial-gradient(circle at 8% 82%, rgba(124, 92, 255, 0.26), transparent 44%),
    linear-gradient(150deg, #070d1a 0%, #0b1428 52%, #0a1122 100%);
  overflow: hidden;
}

.wbd-hero-grid-bg {
  position: absolute;
  inset: -20% -10%;
  background-image:
    linear-gradient(rgba(120, 160, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 160, 255, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 40%, #000 10%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 10%, transparent 72%);
  animation: wbdGridDrift 26s linear infinite;
}

@keyframes wbdGridDrift {
  0% { transform: translate3d(0, 0, 0); }
  100% { transform: translate3d(-56px, -56px, 0); }
}

.wbd-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
  pointer-events: none;
}

.wbd-glow-a {
  width: 420px;
  height: 420px;
  top: -120px;
  right: 8%;
  background: radial-gradient(circle, rgba(66, 109, 249, 0.75), transparent 68%);
  animation: wbdFloatGlow 12s ease-in-out infinite;
}

.wbd-glow-b {
  width: 360px;
  height: 360px;
  bottom: -140px;
  left: 2%;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.62), transparent 68%);
  animation: wbdFloatGlow 15s ease-in-out infinite reverse;
}

@keyframes wbdFloatGlow {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-24px, 26px, 0) scale(1.08); }
}

.wbd-hero-spot {
  position: absolute;
  width: 520px;
  height: 520px;
  left: 0;
  top: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.16), transparent 62%);
  transform: translate3d(-50%, -50%, 0);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.wbd-hero.is-pointer .wbd-hero-spot {
  opacity: 1;
}

.wbd-crumb {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 38px;
  font-size: 13px;
  color: rgba(214, 226, 255, 0.6);
}

.wbd-crumb a {
  color: rgba(214, 226, 255, 0.78);
  text-decoration: none;
  transition: color 0.2s ease;
}

.wbd-crumb a:hover {
  color: #fff;
}

.wbd-crumb em {
  font-style: normal;
  color: #fff;
}

.wbd-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 64px;
  align-items: center;
}

.wbd-hero-copy .wbd-eyebrow {
  color: #8fb4ff;
}

.wbd-hero h1 {
  margin: 18px 0 0;
  font-size: 54px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.wbd-h1-line {
  display: block;
  margin: 14px 0 0;
  font-size: 24px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0;
  background: linear-gradient(92deg, #9dbcff 0%, #c4b5ff 52%, #7ee7f7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.wbd-hero-lead {
  max-width: 560px;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(226, 235, 255, 0.78);
}

.wbd-hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 26px 0 34px;
}

.wbd-hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  color: rgba(226, 235, 255, 0.9);
}

.wbd-tick {
  position: relative;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: rgba(66, 109, 249, 0.28);
  border: 1px solid rgba(143, 180, 255, 0.6);
  flex: 0 0 17px;
}

.wbd-tick::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 4px;
  width: 6px;
  height: 9px;
  border-right: 1.6px solid #cfe0ff;
  border-bottom: 1.6px solid #cfe0ff;
  transform: rotate(40deg);
}

.wbd-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* 浏览器示意 */
.wbd-mock {
  position: relative;
  border-radius: 18px;
  background: rgba(16, 27, 48, 0.78);
  border: 1px solid rgba(140, 170, 255, 0.22);
  box-shadow: 0 40px 80px rgba(2, 8, 22, 0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: visible;
}

.wbd-mock-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 42px;
  padding: 0 14px;
  border-bottom: 1px solid rgba(140, 170, 255, 0.14);
}

.wbd-mock-bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(226, 235, 255, 0.28);
}

.wbd-mock-bar i:first-child { background: #ff7a7a; }
.wbd-mock-bar i:nth-child(2) { background: #ffcf6b; }
.wbd-mock-bar i:nth-child(3) { background: #6ee7b7; }

.wbd-mock-url {
  margin-left: 10px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: rgba(226, 235, 255, 0.6);
}

.wbd-mock-body {
  padding: 18px 18px 22px;
}

.wbd-mock-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.wbd-mock-logo {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--wbd-blue), var(--wbd-cyan));
}

.wbd-mock-link {
  width: 38px;
  height: 7px;
  border-radius: 4px;
  background: rgba(226, 235, 255, 0.18);
}

.wbd-mock-pill {
  width: 58px;
  height: 22px;
  margin-left: auto;
  border-radius: 999px;
  background: rgba(66, 109, 249, 0.55);
}

.wbd-mock-hero {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 22px;
}

.wbd-skeleton {
  display: block;
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(90deg, rgba(226, 235, 255, 0.22), rgba(226, 235, 255, 0.1));
}

.wbd-w60 { width: 60%; height: 18px; }
.wbd-w85 { width: 85%; }
.wbd-w45 { width: 45%; }

.wbd-mock-cta {
  width: 108px;
  height: 30px;
  margin-top: 6px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--wbd-blue), var(--wbd-violet));
  box-shadow: 0 10px 24px rgba(66, 109, 249, 0.45);
}

.wbd-mock-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.wbd-mock-cards span {
  height: 54px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(140, 170, 255, 0.14);
}

.wbd-mock-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 78px;
  margin-top: 16px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(140, 170, 255, 0.12);
}

.wbd-mock-chart i {
  flex: 1;
  height: var(--h);
  border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.85), rgba(66, 109, 249, 0.35));
  transform-origin: bottom;
  animation: wbdBarPulse 3.4s ease-in-out infinite;
}

.wbd-mock-chart i:nth-child(2) { animation-delay: 0.18s; }
.wbd-mock-chart i:nth-child(3) { animation-delay: 0.36s; }
.wbd-mock-chart i:nth-child(4) { animation-delay: 0.54s; }
.wbd-mock-chart i:nth-child(5) { animation-delay: 0.72s; }
.wbd-mock-chart i:nth-child(6) { animation-delay: 0.9s; }

@keyframes wbdBarPulse {
  0%, 100% { transform: scaleY(1); opacity: 0.9; }
  50% { transform: scaleY(0.82); opacity: 1; }
}

.wbd-float {
  position: absolute;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: #eaf1ff;
  background: rgba(14, 24, 44, 0.9);
  border: 1px solid rgba(140, 170, 255, 0.3);
  box-shadow: 0 14px 30px rgba(2, 8, 22, 0.45);
  white-space: nowrap;
}

.wbd-float-a {
  top: -18px;
  right: 18px;
  animation: wbdFloatTag 7s ease-in-out infinite;
}

.wbd-float-b {
  right: -18px;
  bottom: 86px;
  animation: wbdFloatTag 8.4s ease-in-out infinite 0.6s;
}

.wbd-float-c {
  left: -22px;
  bottom: 24px;
  animation: wbdFloatTag 9.2s ease-in-out infinite 1.2s;
}

@keyframes wbdFloatTag {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- 指标 ---------- */
.wbd-stats-strip {
  position: relative;
  margin-top: -58px;
  z-index: 3;
}

.wbd-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  padding: 30px 12px;
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--wbd-shadow);
  border: 1px solid var(--wbd-line);
}

.wbd-stat {
  position: relative;
  padding: 4px 26px;
  text-align: left;
}

.wbd-stat + .wbd-stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12%;
  height: 76%;
  width: 1px;
  background: linear-gradient(180deg, transparent, #d9e1f2, transparent);
}

.wbd-stat strong {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-size: 38px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--wbd-ink);
  letter-spacing: -0.02em;
}

.wbd-stat strong em {
  font-style: normal;
  font-size: 16px;
  font-weight: 600;
  color: var(--wbd-blue);
}

.wbd-stat span {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--wbd-muted);
}

/* ---------- 区块通用 ---------- */
.wbd-section {
  position: relative;
  padding: 104px 0;
}

.wbd-section-alt {
  background: linear-gradient(180deg, #f7f9ff 0%, #ffffff 100%);
}

.wbd-section-dark {
  background:
    radial-gradient(circle at 88% 0%, rgba(66, 109, 249, 0.3), transparent 48%),
    linear-gradient(160deg, #080f1f 0%, #0c162b 100%);
  color: #e8eeff;
}

.wbd-section-head {
  max-width: 760px;
  margin: 0 auto 56px;
  text-align: center;
}

.wbd-section-head h2 {
  margin: 16px 0 16px;
  font-size: 38px;
  font-weight: 700;
  color: var(--wbd-ink);
}

.wbd-section-head p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--wbd-muted);
}

.wbd-head-left {
  margin-left: 0;
  text-align: left;
}

.wbd-head-light h2 {
  color: #fff;
}

.wbd-head-light p {
  color: rgba(214, 226, 255, 0.72);
}

.wbd-head-light .wbd-eyebrow {
  color: #8fb4ff;
}

/* ---------- 服务卡 ---------- */
.wbd-service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.wbd-service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 32px 28px 30px;
  border-radius: var(--wbd-radius);
  background: #fff;
  border: 1px solid var(--wbd-line);
  box-shadow: var(--wbd-shadow-sm);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s ease, border-color 0.35s ease;
  overflow: hidden;
}

.wbd-service-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(120deg, rgba(66, 109, 249, 0.7), rgba(34, 211, 238, 0.55), rgba(124, 92, 255, 0.7));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.wbd-service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 28px 60px rgba(24, 52, 128, 0.14);
}

.wbd-service-card:hover::before {
  opacity: 1;
}

.wbd-service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: 22px;
  border-radius: 16px;
  color: var(--wbd-blue);
  background: linear-gradient(140deg, rgba(66, 109, 249, 0.12), rgba(34, 211, 238, 0.1));
  transition: color 0.35s ease, background 0.35s ease, transform 0.35s ease;
}

.wbd-service-icon svg {
  width: 28px;
  height: 28px;
}

.wbd-service-card:hover .wbd-service-icon {
  color: #fff;
  background: linear-gradient(140deg, var(--wbd-blue), var(--wbd-violet));
  transform: rotate(-6deg);
}

.wbd-service-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--wbd-ink);
}

.wbd-service-card > p {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--wbd-muted);
}

.wbd-service-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.wbd-service-card li {
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  color: #41527a;
  background: var(--wbd-soft);
  border: 1px solid rgba(66, 109, 249, 0.12);
}

/* ---------- 交付标准 ---------- */
.wbd-split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 72px;
  align-items: start;
}

.wbd-split-head {
  position: sticky;
  top: 96px;
}

.wbd-split-head h2 {
  margin: 16px 0 18px;
  font-size: 38px;
  font-weight: 700;
  color: var(--wbd-ink);
}

.wbd-split-head p {
  margin-bottom: 28px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--wbd-muted);
}

.wbd-standard-list {
  display: grid;
  gap: 6px;
}

.wbd-standard-list li {
  position: relative;
  padding: 22px 24px 22px 30px;
  border-radius: 14px;
  border-left: 2px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.wbd-standard-list li:hover {
  background: #fff;
  border-left-color: var(--wbd-blue);
  box-shadow: var(--wbd-shadow-sm);
  transform: translateX(4px);
}

.wbd-standard-dot {
  position: absolute;
  left: 10px;
  top: 32px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--wbd-blue);
  box-shadow: 0 0 0 4px rgba(66, 109, 249, 0.14);
}

.wbd-standard-list h3 {
  font-size: 17.5px;
  font-weight: 600;
  color: var(--wbd-ink);
}

.wbd-standard-list p {
  margin-top: 8px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--wbd-muted);
}

/* 交付物清单 */
.wbd-deliverables {
  display: grid;
  gap: 10px;
  margin-bottom: 30px;
}

.wbd-deliverables li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--wbd-line);
  font-size: 14.5px;
  color: #34405c;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.wbd-deliverables li:hover {
  border-color: rgba(66, 109, 249, 0.35);
  transform: translateX(4px);
  box-shadow: var(--wbd-shadow-sm);
}

.wbd-deliverables span {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--wbd-blue);
}

/* ---------- 流程 ---------- */
.wbd-process {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 20px;
  padding-top: 18px;
}

.wbd-process-line {
  position: absolute;
  left: 6%;
  right: 6%;
  top: 44px;
  height: 2px;
  background: var(--wbd-line);
  overflow: hidden;
}

.wbd-process-line i {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--wbd-blue), var(--wbd-violet), var(--wbd-cyan));
  transition: width 1.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.wbd-process.is-in .wbd-process-line i {
  width: 100%;
}

.wbd-step {
  position: relative;
  padding-top: 40px;
  text-align: center;
}

.wbd-step-no {
  position: absolute;
  left: 50%;
  top: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  font-size: 15px;
  font-weight: 700;
  color: var(--wbd-blue);
  background: #fff;
  border: 1px solid rgba(66, 109, 249, 0.35);
  box-shadow: 0 10px 24px rgba(66, 109, 249, 0.14);
  transform: translateX(-50%);
  transition: color 0.35s ease, background 0.35s ease, transform 0.35s ease;
}

.wbd-step:hover .wbd-step-no {
  color: #fff;
  background: linear-gradient(135deg, var(--wbd-blue), var(--wbd-violet));
  transform: translateX(-50%) scale(1.06);
}

.wbd-step h3 {
  margin-top: 14px;
  font-size: 18px;
  font-weight: 600;
  color: var(--wbd-ink);
}

.wbd-step p {
  margin-top: 10px;
  padding: 0 6px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--wbd-muted);
}

/* ---------- 案例 ---------- */
.wbd-case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.wbd-case {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 30px 30px 28px;
  border-radius: var(--wbd-radius);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(140, 170, 255, 0.18);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), border-color 0.4s ease, background 0.4s ease, box-shadow 0.4s ease;
}

.wbd-case:hover {
  transform: translateY(-6px);
  border-color: rgba(143, 180, 255, 0.45);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.04));
  box-shadow: 0 30px 60px rgba(2, 8, 22, 0.45);
}

.wbd-case-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.wbd-case-tag {
  display: inline-flex;
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: #a9c8ff;
  background: rgba(66, 109, 249, 0.18);
  border: 1px solid rgba(143, 180, 255, 0.3);
}

.wbd-case-index {
  font-size: 11px;
  letter-spacing: 0.24em;
  color: rgba(214, 226, 255, 0.32);
}

.wbd-case h3 {
  font-size: 21px;
  font-weight: 600;
  color: #fff;
}

.wbd-case-client {
  margin-top: 8px;
  font-size: 13px;
  color: rgba(214, 226, 255, 0.55);
}

.wbd-case-block {
  margin-top: 22px;
}

.wbd-case-block h4 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #8fb4ff;
}

.wbd-case-block h4::before {
  content: "";
  width: 14px;
  height: 1px;
  background: currentColor;
}

.wbd-case-block p {
  margin-top: 8px;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(226, 235, 255, 0.76);
}

.wbd-case-block ul {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.wbd-case-block li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.76;
  color: rgba(226, 235, 255, 0.82);
}

.wbd-case-block li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--wbd-cyan), var(--wbd-blue));
}

.wbd-case-quote {
  position: relative;
  margin: 24px 0 0;
  padding: 18px 20px 16px 24px;
  border-radius: 12px;
  background: rgba(8, 15, 31, 0.55);
  border-left: 2px solid rgba(143, 180, 255, 0.5);
}

.wbd-case-quote p {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(232, 238, 255, 0.88);
}

.wbd-case-quote cite {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  font-style: normal;
  letter-spacing: 0.06em;
  color: rgba(214, 226, 255, 0.45);
}

/* ---------- 合作方式 ---------- */
.wbd-engage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.wbd-engage {
  position: relative;
  padding: 34px 30px;
  border-radius: var(--wbd-radius);
  background: linear-gradient(160deg, #f7f9ff, #ffffff);
  border: 1px solid var(--wbd-line);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  overflow: hidden;
}

.wbd-engage::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(66, 109, 249, 0.16), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.wbd-engage:hover {
  transform: translateY(-6px);
  box-shadow: var(--wbd-shadow);
}

.wbd-engage:hover::after {
  opacity: 1;
  transform: scale(1.2);
}

.wbd-engage h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--wbd-ink);
}

.wbd-engage p {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--wbd-muted);
}

/* ---------- FAQ ---------- */
.wbd-faq-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 64px;
  align-items: start;
}

.wbd-faq {
  display: grid;
  gap: 12px;
}

.wbd-faq-item {
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--wbd-line);
  box-shadow: var(--wbd-shadow-sm);
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.wbd-faq-item[open] {
  border-color: rgba(66, 109, 249, 0.4);
  box-shadow: 0 18px 40px rgba(24, 52, 128, 0.1);
}

.wbd-faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--wbd-ink);
  cursor: pointer;
  list-style: none;
}

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

.wbd-faq-item summary i {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--wbd-soft);
  border: 1px solid rgba(66, 109, 249, 0.25);
  transition: transform 0.3s ease, background 0.3s ease;
}

.wbd-faq-item summary i::before,
.wbd-faq-item summary i::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--wbd-blue);
  transform: translate(-50%, -50%);
  transition: opacity 0.25s ease;
}

.wbd-faq-item summary i::before {
  width: 8px;
  height: 1.5px;
}

.wbd-faq-item summary i::after {
  width: 1.5px;
  height: 8px;
}

.wbd-faq-item[open] summary i {
  background: rgba(66, 109, 249, 0.12);
}

.wbd-faq-item[open] summary i::after {
  opacity: 0;
}

.wbd-faq-body {
  padding: 0 24px 22px;
}

.wbd-faq-body p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--wbd-muted);
}

.wbd-faq-item[open] .wbd-faq-body {
  animation: wbdFaqIn 0.35s ease;
}

@keyframes wbdFaqIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 行动区 ---------- */
.wbd-cta {
  position: relative;
  padding: 96px 0 104px;
  background:
    radial-gradient(circle at 18% 20%, rgba(66, 109, 249, 0.4), transparent 46%),
    radial-gradient(circle at 82% 80%, rgba(124, 92, 255, 0.34), transparent 46%),
    linear-gradient(140deg, #070d1a, #0c1730);
  overflow: hidden;
}

.wbd-cta-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.wbd-cta-copy h2 {
  font-size: 36px;
  font-weight: 700;
  color: #fff;
}

.wbd-cta-copy p {
  max-width: 620px;
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(226, 235, 255, 0.72);
}

.wbd-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- 滚动入场 ---------- */
.wbd-page [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.wbd-page [data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1180px) {
  .wbd-hero h1 { font-size: 46px; }
  .wbd-hero-grid { gap: 44px; }
  .wbd-service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .wbd-split { grid-template-columns: 1fr; gap: 40px; }
  .wbd-split-head { position: static; }
  .wbd-faq-wrap { grid-template-columns: 1fr; gap: 36px; }
  .wbd-process { grid-template-columns: 1fr; row-gap: 0; }
  .wbd-process-line { display: none; }
  .wbd-step { padding: 0 0 26px 70px; text-align: left; }
  .wbd-step:last-child { padding-bottom: 0; }
  .wbd-step:not(:last-child)::after {
    content: "";
    position: absolute;
    left: 22px;
    top: 58px;
    bottom: 10px;
    width: 2px;
    background: linear-gradient(180deg, rgba(66, 109, 249, 0.34), rgba(124, 92, 255, 0.12));
  }
  .wbd-step-no { position: absolute; left: 0; top: 0; width: 46px; height: 46px; transform: none; }
  .wbd-step h3 { margin-top: 12px; }
  .wbd-step:hover .wbd-step-no { transform: scale(1.06); }
  .wbd-step p { padding: 0; }
}

@media (max-width: 960px) {
  .wbd-hero { padding: 104px 0 118px; }
  .wbd-hero-grid { grid-template-columns: 1fr; gap: 52px; }
  .wbd-mock { max-width: 560px; }
  .wbd-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 24px; padding: 26px 8px; }
  .wbd-stat { padding: 0 20px; }
  .wbd-stat + .wbd-stat::before { display: none; }
  .wbd-case-grid { grid-template-columns: 1fr; }
  .wbd-engage-grid { grid-template-columns: 1fr; }
  .wbd-cta-inner { flex-direction: column; align-items: flex-start; }
  .wbd-section { padding: 78px 0; }
  .wbd-section-head h2, .wbd-split-head h2, .wbd-cta-copy h2 { font-size: 30px; }
}

@media (max-width: 680px) {
  .wbd-page { font-size: 15px; }
  .wbd-shell { padding: 0 18px; }
  .wbd-hero { padding: 92px 0 104px; }
  .wbd-hero h1 { font-size: 36px; }
  .wbd-h1-line { font-size: 18px; }
  .wbd-hero-lead { font-size: 15px; }
  .wbd-hero-actions .wbd-btn { width: 100%; }
  .wbd-float-b { right: 6px; bottom: 60px; }
  .wbd-float-c { left: 4px; }
  .wbd-section-head h2, .wbd-split-head h2, .wbd-cta-copy h2 { font-size: 26px; }
  .wbd-section-head { margin-bottom: 36px; }
  .wbd-service-grid { grid-template-columns: 1fr; }
  .wbd-process { grid-template-columns: 1fr; }
  .wbd-case { padding: 24px 20px; }
  .wbd-faq-item summary { padding: 16px 18px; font-size: 15px; }
  .wbd-faq-body { padding: 0 18px 18px; }
  .wbd-stat strong { font-size: 30px; }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .wbd-page *,
  .wbd-page *::before,
  .wbd-page *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .wbd-page [data-reveal] {
    opacity: 1;
    transform: none;
  }
}