/* 欧易 OKX 下载落地页 · 百变模板前缀 zd122b · 分层高级配色 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #0f172a;
  background: #e8edf3;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
  display: block;
}

/* 页面壳：中性冷灰底，与下方各区块形成层次 */
.zd122bpage {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(ellipse 90% 55% at 50% 0%, rgba(37, 99, 235, 0.06), transparent 58%),
    linear-gradient(180deg, #f1f4f8 0%, #e8edf3 45%, #e2e8f0 100%);
}

.zd122bcontainer {
  width: 100%;
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.zd122bcontainer_narrow {
  max-width: 800px;
}

/* 顶栏：净白 + 轻阴影，与内容区明确区分 */
.zd122bheader {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.04);
}

.zd122bnav {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.zd122bnav_brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.02em;
}

.zd122blogo_img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  flex-shrink: 0;
}

.zd122bnav_brand_text {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #0891b2 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.zd122bnav_list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.zd122bnav_item {
  margin: 0;
}

.zd122bnav_link {
  color: #475569;
  text-decoration: none;
  font-size: 0.9375rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.zd122bnav_link:hover,
.zd122bnav_link:focus-visible {
  color: #1d4ed8;
  border-bottom-color: rgba(29, 78, 216, 0.35);
  outline: none;
}

.zd122bnav_toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.zd122bnav_burger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.06);
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  user-select: none;
}

.zd122bnav_burger_line {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #1e3a8a, #2563eb, #0891b2);
}

.zd122bnav_menu {
  display: block;
}

.zd122bmain {
  flex: 1;
}

/* 主横幅：深蓝夜渐变 + 青蓝高光，独立成「品牌首屏」 */
.zd122bhero {
  position: relative;
  overflow: hidden;
  padding: 48px 0 64px;
  background: linear-gradient(
    135deg,
    #070d18 0%,
    #0f172a 26%,
    #172554 52%,
    #1e3a5f 78%,
    #1d4ed8 100%
  );
}

.zd122bhero_bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 85% 65% at 88% 8%, rgba(59, 130, 246, 0.45), transparent 52%),
    radial-gradient(ellipse 55% 45% at 12% 92%, rgba(34, 211, 238, 0.14), transparent 48%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.06) 0%, transparent 42%);
  pointer-events: none;
}

.zd122bhero_shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.zd122bshape {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
}

.zd122bshape_1 {
  width: 340px;
  height: 340px;
  background: #2563eb;
  top: -100px;
  right: -40px;
}

.zd122bshape_2 {
  width: 260px;
  height: 260px;
  background: #0891b2;
  bottom: 5%;
  left: -100px;
  opacity: 0.35;
}

.zd122bshape_3 {
  width: 200px;
  height: 200px;
  background: #6366f1;
  top: 35%;
  right: 20%;
  opacity: 0.28;
}

.zd122bhero_inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.zd122bhero_kicker {
  margin: 0 0 12px;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #d4c08a;
}

.zd122bhero_title {
  margin: 0 0 16px;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 800;
  line-height: 1.25;
  color: #f8fafc;
  letter-spacing: -0.02em;
}

.zd122bhero_desc {
  margin: 0 0 28px;
  color: #cbd5e1;
  font-size: 1rem;
  max-width: 36em;
}

.zd122bhero_actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.zd122bhero_stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  padding: 0;
  list-style: none;
}

.zd122bhero_stat {
  margin: 0;
  padding: 8px 14px;
  font-size: 0.8125rem;
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  letter-spacing: 0.02em;
}

.zd122bbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.zd122bbtn_app {
  min-width: 170px;
  height: 46px;
  padding: 0 18px;
}

.zd122bbtn_apple {
  color: #0b3a67;
  background: linear-gradient(135deg, #e0f2fe 0%, #eff6ff 45%, #ffffff 100%);
  border: 1px solid rgba(37, 99, 235, 0.22);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.10);
}

.zd122bbtn_apple:hover,
.zd122bbtn_apple:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.18);
  outline: none;
}

.zd122bbtn_android {
  color: #ffffff;
  background: linear-gradient(135deg, #22c55e 0%, #0ea5e9 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 28px rgba(34, 197, 94, 0.22);
}

.zd122bbtn_android:hover,
.zd122bbtn_android:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(34, 197, 94, 0.28);
  outline: none;
}

.zd122bbtn_primary {
  color: #0f172a;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}

.zd122bbtn_primary:hover,
.zd122bbtn_primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.3);
  outline: none;
}

.zd122bbtn_ghost {
  color: #f1f5f9;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.06);
}

.zd122bbtn_ghost:hover,
.zd122bbtn_ghost:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.5);
  outline: none;
}

.zd122bhero_media {
  position: relative;
}

.zd122bfigure {
  margin: 0;
}

.zd122bfigure_hero .zd122bimg {
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.35),
    0 0 0 1px rgba(255, 255, 255, 0.06) inset;
}

.zd122bhero .zd122bcaption {
  color: #94a3b8;
}

.zd122bcaption {
  margin-top: 12px;
  font-size: 0.8125rem;
  color: #64748b;
}

.zd122bsection {
  padding: 56px 0;
}

/* 下载区：浅灰蓝底，与纯白/深带形成对比 */
.zd122bsection_alt {
  background: linear-gradient(180deg, #eef2f6 0%, #e8edf3 100%);
  border-top: 1px solid rgba(15, 23, 42, 0.05);
  border-bottom: 1px solid rgba(15, 23, 42, 0.05);
}

/* 欧易官网下载 × 欧易交易所下载：板块框架与双栏布局 */
.zd122bsection_head_download {
  margin-bottom: 36px;
}

.zd122bsection_head_download .zd122bsection_title {
  position: relative;
  padding-bottom: 4px;
}

.zd122bsection_head_download .zd122bsection_title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 2px;
  background: linear-gradient(90deg, #2563eb, #0d9488);
}

.zd122bdownload_label {
  margin: 0 0 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #64748b;
}

.zd122bdownload_framework {
  width: 100%;
}

.zd122bdownload_cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: stretch;
}

.zd122bcard.zd122bcard_download {
  border-left: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.zd122bcard.zd122bcard_download:hover {
  border-left-color: transparent;
}

.zd122bcard.zd122bcard_download_site {
  border-top: 4px solid #2563eb;
}

.zd122bcard.zd122bcard_download_exch {
  border-top: 4px solid #0d9488;
}

.zd122bcard_download_tag {
  flex-shrink: 0;
  padding: 10px 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: #475569;
  background: #f1f5f9;
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.zd122bcard_download_site .zd122bcard_download_tag {
  color: #1d4ed8;
  background: rgba(37, 99, 235, 0.08);
}

.zd122bcard_download_exch .zd122bcard_download_tag {
  color: #0f766e;
  background: rgba(13, 148, 136, 0.08);
}

.zd122bcard_download_media {
  flex-shrink: 0;
  background: #f8fafc;
  padding: 6px;
}

.zd122bfigure_download {
  margin: 0;
  line-height: 0;
}

.zd122bcard_download_media .zd122bimg {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 14px;
  display: block;
}

.zd122bcard_download_body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 20px 22px 22px;
  min-height: 0;
}

.zd122bcard_download_body .zd122bcard_title {
  margin: 0 0 10px;
}

.zd122bcard_download_body .zd122bcard_text {
  margin: 0;
  flex: 1;
}

.zd122bsection_head {
  text-align: center;
  margin-bottom: 40px;
}

.zd122bsection_title {
  margin: 0 0 12px;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  color: #0f172a;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.zd122bsection_title_light {
  color: #0f172a;
}

.zd122bsection_lead {
  margin: 0 auto;
  max-width: 640px;
  color: #64748b;
  font-size: 1rem;
}

.zd122bprose {
  max-width: 720px;
  margin: 0 auto 32px;
  color: #475569;
  font-size: 0.9375rem;
  line-height: 1.75;
  text-align: center;
}

.zd122bprose p {
  margin: 0 0 14px;
}

.zd122bprose p:last-child {
  margin-bottom: 0;
}

.zd122bgrid {
  display: grid;
  gap: 28px;
}

.zd122bgrid_2 {
  grid-template-columns: 1fr;
}

.zd122bgrid_3 {
  grid-template-columns: 1fr;
}

.zd122bgrid_4 {
  grid-template-columns: 1fr;
}

/* 卡片：白底 + 左侧品牌色条 + 柔和投影 */
.zd122bcard {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 18px;
  padding: 22px 22px 22px 24px;
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.06);
  border-left: 3px solid #2563eb;
  transition: border-color 0.2s, box-shadow 0.25s, transform 0.2s;
}

.zd122bcard:hover {
  border-left-color: #1d4ed8;
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.1);
  transform: translateY(-2px);
}

.zd122bcard .zd122bimg {
  border-radius: 14px;
  width: 100%;
}

.zd122bcard_title {
  margin: 20px 0 10px;
  font-size: 1.2rem;
  color: #0f172a;
}

.zd122bcard_text {
  margin: 0;
  color: #475569;
  font-size: 0.9375rem;
}

.zd122bcard_text + .zd122bcard_text {
  margin-top: 12px;
}

/* 欧易下载多端版本：框架外壳 + 分组条 + 系统卡 */
.zd122bsection_head_platform {
  margin-bottom: 32px;
}

.zd122bsection_head_platform .zd122bsection_title {
  padding-bottom: 4px;
}

.zd122bsection_head_platform .zd122bsection_title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 2px;
  background: linear-gradient(90deg, #2563eb, #7c3aed);
}

.zd122bplatform_label {
  margin: 0 0 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #64748b;
}

.zd122bplatform_framework {
  width: 100%;
}

.zd122bplatform_rows {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.zd122bplatform_row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
  background: #ffffff;
  border: 1px solid rgba(37, 99, 235, 0.22);
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.06);
  padding: 22px;
}

.zd122bplatform_copy {
  min-width: 0;
}

.zd122bplatform_copy .zd122bhero_actions {
  margin-top: 16px;
}

.zd122bplatform_kicker {
  margin: 0 0 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #64748b;
}

.zd122bplatform_title {
  margin: 0 0 10px;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  line-height: 1.3;
  color: #0f172a;
}

.zd122bplatform_text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #475569;
}

.zd122bplatform_media {
  width: 100%;
}

.zd122bplatform_media .zd122bimg {
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  border-radius: 12px;
  border: 1px solid rgba(37, 99, 235, 0.26);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  display: block;
}

.zd122bplatform_row_desktop {
  border-left: 4px solid #2563eb;
}

.zd122bplatform_row_mobile {
  border-left: 4px solid #16a34a;
}

.zd122bfeatures_layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

.zd122bfeatures_framework {
  width: 100%;
}

.zd122bfeatures_shell {
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 18px;
  box-shadow: 0 10px 34px rgba(15, 23, 42, 0.06);
  padding: 20px;
}

.zd122bfeatures_top {
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  margin-bottom: 20px;
  padding-bottom: 18px;
}

.zd122bfeatures_layout_frame {
  gap: 24px;
  align-items: center;
}

.zd122bsubhead {
  margin: 40px 0 20px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #0f172a;
  text-align: center;
}

.zd122bsubhead:first-child {
  margin-top: 0;
}

.zd122bmini_cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 8px;
}

.zd122bmini_card {
  padding: 18px 20px;
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.zd122bmini_card:hover {
  border-color: rgba(37, 99, 235, 0.2);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.zd122bmini_title {
  margin: 0 0 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #1d4ed8;
}

.zd122bmini_text {
  margin: 0;
  font-size: 0.875rem;
  color: #64748b;
  line-height: 1.6;
}

.zd122bflow {
  counter-reset: zd122bflow;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.zd122bflow > li {
  list-style: none;
}

.zd122bflow_item {
  position: relative;
  counter-increment: zd122bflow;
  padding: 0 0 24px 52px;
  border-left: 2px solid rgba(37, 99, 235, 0.2);
  margin-left: 16px;
}

.zd122bflow_item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.zd122bflow_item::before {
  content: counter(zd122bflow);
  position: absolute;
  left: -17px;
  top: 0;
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.zd122bflow_title {
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #0f172a;
}

.zd122bflow_text {
  margin: 0;
  font-size: 0.9375rem;
  color: #64748b;
  line-height: 1.65;
}

/* 获取流程：框架结构 */
.zd122bflow_framework {
  width: 100%;
}

.zd122bflow_shell {
  position: relative;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 20px;
  box-shadow: 0 14px 44px rgba(30, 64, 175, 0.08);
  padding: 22px;
  overflow: hidden;
}

.zd122bflow_shell::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 26px;
  bottom: 26px;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0), rgba(37, 99, 235, 0.35), rgba(13, 148, 136, 0.35), rgba(13, 148, 136, 0));
  pointer-events: none;
}

.zd122bflow_grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.zd122bflow_card {
  position: relative;
  background: #ffffff;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 16px;
  padding: 18px 18px 16px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.zd122bflow_card::after {
  content: "";
  position: absolute;
  right: -11px;
  top: 26px;
  width: 22px;
  height: 2px;
  background: rgba(37, 99, 235, 0.28);
}

.zd122bflow_num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #ffffff;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  margin-bottom: 10px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.zd122bflow_icon {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  margin: 0 0 10px 8px;
  color: #1d4ed8;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
  vertical-align: middle;
}

.zd122bflow_icon svg {
  display: block;
}

.zd122bsecurity_grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.zd122bsecurity_item {
  padding: 22px 24px;
  background: #ffffff;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
}

.zd122bsecurity_title {
  margin: 0 0 10px;
  font-size: 1rem;
  font-weight: 600;
  color: #0f172a;
}

.zd122bsecurity_text {
  margin: 0;
  font-size: 0.9375rem;
  color: #64748b;
  line-height: 1.65;
}

.zd122bbullets {
  margin: 0;
  padding: 0;
  list-style: none;
}

.zd122bbullet {
  position: relative;
  padding-left: 22px;
  margin-bottom: 18px;
  color: #334155;
  font-size: 0.9375rem;
}

.zd122bbullet::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb, #0891b2);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.zd122bstrong {
  color: #1d4ed8;
  font-weight: 600;
}

.zd122bfigure_tall {
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.zd122bfigure_tall .zd122bimg {
  border-radius: 20px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.zd122bfigure_features {
  margin-left: 0;
  margin-right: auto;
  max-width: 260px;
  width: 100%;
  transform: translateX(-60px);
}

@media (max-width: 767px) {
  .zd122bfigure_features {
    max-width: 230px;
    transform: none;
    margin-left: auto;
    margin-right: auto;
  }
}

/* 功能亮点：净白区块 */
section#zd122bfeatures {
  background: #ffffff;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

/* 带状区：深色「品质带」+ 顶部金线点缀 */
.zd122bsection_band {
  position: relative;
  background: linear-gradient(145deg, #0c1524 0%, #111c2e 45%, #152447 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
  box-shadow: inset 0 1px 0 rgba(212, 192, 138, 0.35);
}

.zd122bsection_band::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, #c9a96e, #d4c08a, #c9a96e, transparent);
  opacity: 0.85;
  pointer-events: none;
}

.zd122bband_inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.zd122bsection_band .zd122bsection_title,
.zd122bsection_band .zd122bsection_title_light {
  color: #f8fafc;
}

.zd122bband_lead {
  margin: 0 0 20px;
  font-size: 0.9375rem;
  color: #94a3b8;
  line-height: 1.65;
  max-width: 36em;
}

.zd122bsteps {
  margin: 20px 0 0;
  padding-left: 1.25em;
  color: #334155;
}

.zd122bsection_band .zd122bsteps,
.zd122bsection_band .zd122bstep {
  color: #cbd5e1;
}

.zd122bstep {
  margin-bottom: 10px;
  padding-left: 4px;
}

.zd122bsection_band .zd122bstep::marker {
  color: #d4c08a;
}

.zd122bfigure_band .zd122bimg {
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.zd122bsection_band .zd122bcaption_light {
  color: #94a3b8;
}

.zd122bcaption_light {
  color: #475569;
}

.zd122bfaq_list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* FAQ：浅石板底，与上下白/灰区区分 */
section#zd122bfaq {
  background: #f1f5f9;
  border-top: 1px solid rgba(15, 23, 42, 0.05);
}

section#zd122bplatform {
  background: #ffffff;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

section#zd122bflow {
  background: linear-gradient(180deg, #eef2f6 0%, #e8edf3 100%);
  border-top: 1px solid rgba(15, 23, 42, 0.05);
  border-bottom: 1px solid rgba(15, 23, 42, 0.05);
}

section#zd122bsecurity {
  background: #ffffff;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
}

.zd122bfaq_item {
  padding: 22px 24px;
  background: #ffffff;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
}

.zd122bfaq_q {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: #0f172a;
  font-weight: 600;
}

.zd122bfaq_q {
  cursor: pointer;
  display: block;
  position: relative;
  padding-right: 36px;
}

.zd122bfaq_q::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  font-weight: 800;
  color: #1d4ed8;
  transition: transform 0.2s ease;
}

.zd122bfaq_toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.zd122bfaq_a_wrap {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.zd122bfaq_toggle:checked ~ .zd122bfaq_a_wrap {
  max-height: 220px;
}

.zd122bfaq_toggle:checked + .zd122bfaq_q::after {
  transform: translateY(-50%) rotate(45deg);
}

.zd122bfaq_a {
  margin: 0;
  color: #64748b;
  font-size: 0.9375rem;
}

/* 页脚：近黑底收束，与上方浅色形成收边 */
.zd122bfooter {
  padding: 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: linear-gradient(180deg, #0a0f1a 0%, #06090f 100%);
}

.zd122bfooter_text {
  margin: 0;
  text-align: center;
  font-size: 0.8125rem;
  color: #64748b;
  letter-spacing: 0.02em;
}

.zd122bfooter_link {
  color: #e2e8f0;
  text-decoration: none;
  border-bottom: 1px solid rgba(226, 232, 240, 0.25);
}

.zd122bfooter_link:hover,
.zd122bfooter_link:focus-visible {
  color: #ffffff;
  border-bottom-color: rgba(255, 255, 255, 0.45);
  outline: none;
}

.zd122blinks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 14px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.zd122blinks_item {
  margin: 0;
}

.zd122blinks_a {
  display: block;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(15, 23, 42, 0.06);
  color: #0f172a;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
  transition: transform 0.15s, box-shadow 0.2s, border-color 0.2s;
}

.zd122blinks_a:hover,
.zd122blinks_a:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
  outline: none;
}

.zd122bad {
  width: 100%;
  padding: 0;
}

@media (max-width: 767px) {
  .zd122blinks {
    grid-template-columns: 1fr;
  }
}

/* 底部收口 CTA */
.zd122bfinal_section {
  padding: 44px 0;
  background:
    radial-gradient(ellipse 120% 80% at 50% 0%, rgba(37, 99, 235, 0.42), transparent 55%),
    linear-gradient(135deg, #070d18 0%, #0f172a 42%, #0b2a5b 100%);
  border-top: 1px solid rgba(37, 99, 235, 0.22);
}

.zd122bfinal_inner {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}

.zd122bfinal_title {
  margin: 0 0 10px;
  color: #ffffff;
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.zd122bfinal_text {
  margin: 0 auto 22px;
  max-width: 720px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
  line-height: 1.7;
}

.zd122bfinal_buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.zd122bfinal_btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 170px;
  height: 46px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.15);
  transition: transform 0.15s, background 0.2s, border-color 0.2s;
}

.zd122bfinal_btn:hover,
.zd122bfinal_btn:focus-visible {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.28);
  outline: none;
}

.zd122bfinal_btn_icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.92);
}

.zd122bfinal_btn_pc {
  border-color: rgba(148, 163, 184, 0.35);
  background: rgba(148, 163, 184, 0.14);
}

.zd122bfinal_btn_apple {
  border-color: rgba(56, 189, 248, 0.55);
  background: rgba(56, 189, 248, 0.18);
}

.zd122bfinal_btn_android {
  border-color: rgba(34, 197, 94, 0.55);
  background: rgba(34, 197, 94, 0.16);
}

@media (max-width: 767px) {
  .zd122bfinal_section {
    padding: 34px 0;
  }

  .zd122bfinal_text {
    margin-bottom: 18px;
    font-size: 0.95rem;
  }

  .zd122bnav_brand {
    max-width: calc(100% - 60px);
  }

  .zd122bnav_burger {
    display: inline-flex;
  }

  .zd122bnav_menu {
    visibility: hidden;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    pointer-events: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    left: 0;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 16px;
    box-shadow: 0 18px 60px rgba(15, 23, 42, 0.14);
    padding: 0;
    transition: opacity 0.2s ease, max-height 0.25s ease, visibility 0.2s ease;
  }

  .zd122bnav_toggle:checked ~ .zd122bnav_menu {
    visibility: visible;
    opacity: 1;
    max-height: 420px;
    pointer-events: auto;
    padding: 12px;
  }

  .zd122bnav_list {
    width: 100%;
    flex-direction: column;
    gap: 4px;
  }

  .zd122bnav_link {
    display: block;
    width: 100%;
    white-space: nowrap;
    padding: 12px 10px;
    border-bottom: 0;
    border-radius: 12px;
  }

  .zd122bnav_link:hover,
  .zd122bnav_link:focus-visible {
    background: rgba(37, 99, 235, 0.08);
    border-bottom-color: transparent;
  }

  .zd122bhero_actions {
    flex-direction: column;
    align-items: stretch;
  }

  .zd122bbtn_app {
    min-width: 0;
    width: 100%;
  }
}

@media (min-width: 768px) {
  .zd122bnav_burger {
    display: none;
  }

  .zd122bnav_menu {
    display: block;
    position: static;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }
}

@media (min-width: 768px) {
  .zd122bhero_inner {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .zd122bdownload_cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }

  .zd122bplatform_row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
    padding: 28px;
  }

  .zd122bplatform_row_mobile .zd122bplatform_media {
    order: 1;
  }

  .zd122bplatform_row_mobile .zd122bplatform_copy {
    order: 2;
  }

  .zd122bgrid_2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .zd122bgrid_3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .zd122bgrid_4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .zd122bmini_cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .zd122bsecurity_grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .zd122bfeatures_layout {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }

  .zd122bfeatures_shell {
    padding: 24px;
  }

  .zd122bflow_shell {
    padding: 28px;
  }

  .zd122bflow_grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 26px;
  }

  .zd122bflow_card:nth-child(2n) {
    transform: translateY(20px);
    border-color: rgba(13, 148, 136, 0.18);
  }

  .zd122bflow_card:nth-child(2n) .zd122bflow_num {
    background: linear-gradient(135deg, #0d9488, #0f766e);
    box-shadow: 0 4px 14px rgba(13, 148, 136, 0.3);
  }

  .zd122bflow_card:nth-child(2n) .zd122bflow_icon {
    color: #0f766e;
    background: rgba(13, 148, 136, 0.1);
    border-color: rgba(13, 148, 136, 0.24);
  }

  .zd122bflow_card:nth-child(2n)::after {
    left: -11px;
    right: auto;
    background: rgba(13, 148, 136, 0.28);
  }

  .zd122bfigure_tall {
    margin-left: 0;
    margin-right: 0;
    justify-self: end;
  }

  .zd122bband_inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .zd122bgrid_4 {
    grid-template-columns: repeat(4, 1fr);
  }

  .zd122bplatform_rows {
    gap: 34px;
  }

  .zd122bplatform_row {
    padding: 32px;
  }

  .zd122bhero {
    padding: 64px 0 80px;
  }

  .zd122bsection {
    padding: 72px 0;
  }
}