/* 非小号专题页 · 百变模板前缀 zdb4cf */
/* 兼容：Chrome / Safari / Firefox / Edge / 微信内置 / iOS / Android */

.zdb4cfbody {
  margin: 0;
  padding: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #1a2332;
  background: #f3f6f9;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  overflow-x: hidden;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.zdb4cfbody *,
.zdb4cfbody *::before,
.zdb4cfbody *::after {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.zdb4cfbody img {
  max-width: 100%;
  height: auto;
  border: 0;
  vertical-align: middle;
  -ms-interpolation-mode: bicubic;
}

.zdb4cfbody a {
  -webkit-tap-highlight-color: rgba(45, 212, 191, 0.25);
}

.zdb4cfcontainer {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
  padding-left: calc(20px + constant(safe-area-inset-left));
  padding-right: calc(20px + constant(safe-area-inset-right));
  padding-left: calc(20px + env(safe-area-inset-left));
  padding-right: calc(20px + env(safe-area-inset-right));
}

/* ===== 顶部导航 ===== */
.zdb4cfheader {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 100;
  background: #0a1c30;
  background: rgba(10, 28, 48, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.zdb4cfnav-wrap {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
  -ms-flex-pack: justify;
  justify-content: space-between;
  min-height: 64px;
  padding-top: constant(safe-area-inset-top);
  padding-top: env(safe-area-inset-top);
}

.zdb4cflogo {
  -webkit-flex-shrink: 0;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  margin-right: 24px;
}

.zdb4cflogo-link {
  display: inline-block;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #5eead4;
  text-decoration: none;
}

.zdb4cfnav {
  -webkit-box-flex: 1;
  -webkit-flex: 1 1 auto;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  min-width: 0;
}

.zdb4cfnav-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.zdb4cfnav-item {
  margin: 2px 4px;
}

.zdb4cfnav-link {
  display: block;
  padding: 10px 12px;
  min-height: 44px;
  line-height: 24px;
  color: #d8e4ef;
  text-decoration: none;
  font-size: 14px;
  border-radius: 4px;
  -webkit-transition: color 0.2s ease, background 0.2s ease;
  transition: color 0.2s ease, background 0.2s ease;
}

.zdb4cfnav-link:hover,
.zdb4cfnav-link:focus {
  color: #ffffff;
  background: rgba(94, 234, 212, 0.12);
  outline: none;
}

/* ===== 主横幅 ===== */
.zdb4cfbanner {
  position: relative;
  padding: 88px 0 96px;
  background-color: #0a1c30;
  background-image: -webkit-linear-gradient(315deg, rgba(10, 28, 48, 0.92) 0%, rgba(14, 58, 72, 0.88) 55%, rgba(8, 40, 56, 0.9) 100%);
  background-image: linear-gradient(135deg, rgba(10, 28, 48, 0.92) 0%, rgba(14, 58, 72, 0.88) 55%, rgba(8, 40, 56, 0.9) 100%);
  color: #ffffff;
  overflow: hidden;
}

.zdb4cfbanner::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -30%;
  width: 48%;
  height: 120%;
  background: -webkit-linear-gradient(290deg, transparent 30%, rgba(94, 234, 212, 0.08) 100%);
  background: linear-gradient(160deg, transparent 30%, rgba(94, 234, 212, 0.08) 100%);
  -webkit-transform: rotate(-12deg);
  -ms-transform: rotate(-12deg);
  transform: rotate(-12deg);
  pointer-events: none;
}

.zdb4cfbanner-inner {
  position: relative;
  z-index: 1;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  display: -ms-grid;
  display: grid;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -ms-grid-columns: 1.05fr 48px 0.95fr;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px 48px;
}

.zdb4cfbanner-content {
  max-width: 560px;
  min-width: 0;
  -webkit-box-flex: 1;
  -webkit-flex: 1 1 52%;
  -ms-flex: 1 1 52%;
  flex: 1 1 52%;
}

.zdb4cfbanner-title {
  margin: 0 0 18px;
  font-size: 36px;
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.02em;
}

.zdb4cfbanner-desc {
  margin: 0 0 32px;
  font-size: 16px;
  font-size: clamp(15px, 2.2vw, 18px);
  color: #c5d5e4;
  max-width: 520px;
}

.zdb4cfbanner-actions {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: -6px;
}

.zdb4cfbanner-actions .zdb4cfbtn {
  margin: 6px;
}

.zdb4cfbanner-visual {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  min-width: 0;
  -webkit-box-flex: 1;
  -webkit-flex: 1 1 42%;
  -ms-flex: 1 1 42%;
  flex: 1 1 42%;
}

.zdb4cfbanner-img {
  display: block;
  width: 100%;
  max-width: 460px;
  height: auto;
  border-radius: 14px;
  -webkit-box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(94, 234, 212, 0.18);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(94, 234, 212, 0.18);
  -o-object-fit: cover;
  object-fit: cover;
}

/* ===== 按钮 ===== */
.zdb4cfbtn {
  display: inline-block;
  padding: 12px 28px;
  min-height: 44px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  -webkit-transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.zdb4cfbtn-primary {
  background: #2dd4bf;
  color: #06262a;
}

.zdb4cfbtn-primary:hover,
.zdb4cfbtn-primary:focus {
  background: #5eead4;
  outline: none;
}

.zdb4cfbtn-secondary {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.45);
}

.zdb4cfbtn-secondary:hover,
.zdb4cfbtn-secondary:focus {
  border-color: #5eead4;
  color: #5eead4;
  outline: none;
}

/* ===== 通用板块 ===== */
.zdb4cfsection {
  padding: 72px 0;
}

.zdb4cfsection-head {
  margin-bottom: 40px;
  text-align: center;
}

.zdb4cfsection-title {
  margin: 0 0 12px;
  font-size: 28px;
  font-size: clamp(24px, 3.5vw, 32px);
  font-weight: 700;
  color: #0a1c30;
}

.zdb4cfsection-intro {
  margin: 0 auto;
  max-width: 640px;
  color: #5a6b7d;
  font-size: 15px;
}

.zdb4cfsection-download {
  background: #ffffff;
}

/* ===== 非小号下载 · 框架布局 ===== */
.zdb4cfdl-frame {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 1.45fr 24px 1fr;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  gap: 24px;
  -webkit-box-align: stretch;
  -webkit-align-items: stretch;
  -ms-flex-align: stretch;
  align-items: stretch;
}

.zdb4cfdl-main {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  display: -ms-grid;
  display: grid;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  grid-template-rows: auto 1fr;
  background: #0a1c30;
  color: #ffffff;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #12324a;
  min-width: 0;
  -webkit-box-flex: 1.45;
  -webkit-flex: 1.45 1 0%;
  -ms-flex: 1.45 1 0%;
  flex: 1.45 1 0%;
}

.zdb4cfdl-main-media {
  position: relative;
  overflow: hidden;
  background: #062230;
}

.zdb4cfdl-main-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 280px;
  -o-object-fit: cover;
  object-fit: cover;
  -o-object-position: center;
  object-position: center;
}

.zdb4cfdl-main-body {
  padding: 28px 28px 32px;
  -webkit-box-flex: 1;
  -webkit-flex: 1 1 auto;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
}

.zdb4cfdl-tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #06262a;
  background: #2dd4bf;
  border-radius: 4px;
}

.zdb4cfdl-title {
  margin: 0 0 12px;
  font-size: 24px;
  font-weight: 700;
  color: #ffffff;
}

.zdb4cfdl-text {
  margin: 0 0 16px;
  font-size: 14px;
  color: #b8c9d8;
  line-height: 1.7;
}

.zdb4cfdl-points {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.zdb4cfdl-point {
  position: relative;
  padding: 6px 0 6px 18px;
  font-size: 14px;
  color: #d8e4ef;
}

.zdb4cfdl-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #2dd4bf;
}

.zdb4cfdl-btn {
  display: inline-block;
}

.zdb4cfdl-side {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  display: -ms-grid;
  display: grid;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  grid-template-rows: 1fr 1fr auto;
  gap: 16px;
  min-width: 0;
  -webkit-box-flex: 1;
  -webkit-flex: 1 1 0%;
  -ms-flex: 1 1 0%;
  flex: 1 1 0%;
}

.zdb4cfdl-side-item {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  display: -ms-grid;
  display: grid;
  -ms-grid-columns: 56px 16px 1fr;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  -webkit-box-align: start;
  -webkit-align-items: flex-start;
  -ms-flex-align: start;
  align-items: flex-start;
  padding: 22px 20px;
  background: #f7fafc;
  border: 1px solid #dce5ee;
  border-radius: 12px;
  -webkit-box-flex: 1;
  -webkit-flex: 1 1 auto;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
}

.zdb4cfdl-side-icon {
  width: 56px;
  height: 56px;
  -webkit-flex-shrink: 0;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  margin-right: 16px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: 10px;
  color: #06262a;
}

@supports (display: grid) {
  .zdb4cfdl-side-icon {
    margin-right: 0;
  }
}

.zdb4cfdl-side-icon-ios {
  background: #c7f5ec;
  color: #0a5c52;
}

.zdb4cfdl-side-icon-pc {
  background: #d7e8f5;
  color: #184a6b;
}

.zdb4cfdl-side-body {
  min-width: 0;
  -webkit-box-flex: 1;
  -webkit-flex: 1 1 auto;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
}

.zdb4cfdl-side-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: #0a1c30;
}

.zdb4cfdl-side-text {
  margin: 0;
  font-size: 14px;
  color: #4a5d70;
  line-height: 1.65;
}

.zdb4cfdl-tip {
  padding: 18px 20px;
  background: #eef8f6;
  border: 1px solid #b7e6dc;
  border-radius: 12px;
}

.zdb4cfdl-tip-title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: #0a5c52;
}

.zdb4cfdl-tip-text {
  margin: 0;
  font-size: 13px;
  color: #3d5f58;
  line-height: 1.6;
}

.zdb4cfsection-feature {
  background: #ffffff;
}

.zdb4cfsection-guide {
  background: #eef3f7;
}

.zdb4cfsection-faq {
  background: #ffffff;
}

.zdb4cfsection-cta {
  background-color: #0a1c30;
  background-image: -webkit-linear-gradient(330deg, #0a1c30 0%, #0e4a52 100%);
  background-image: linear-gradient(120deg, #0a1c30 0%, #0e4a52 100%);
  color: #ffffff;
  text-align: center;
  padding: 64px 0;
}

/* ===== 栅格框架 ===== */
.zdb4cfgrid {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  display: -ms-grid;
  display: grid;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: -12px;
  gap: 24px;
}

@supports (display: grid) {
  .zdb4cfgrid {
    margin: 0;
  }
}

.zdb4cfgrid-2 {
  -ms-grid-columns: 1fr 24px 1fr;
  grid-template-columns: repeat(2, 1fr);
}

.zdb4cfgrid-2 > .zdb4cfblock {
  width: calc(50% - 24px);
  margin: 12px;
}

.zdb4cfgrid-3 {
  -ms-grid-columns: 1fr 24px 1fr 24px 1fr;
  grid-template-columns: repeat(3, 1fr);
}

.zdb4cfgrid-3 > .zdb4cfblock,
.zdb4cfgrid-3 > .zdb4cffeature-item {
  width: calc(33.333% - 24px);
  margin: 12px;
}

.zdb4cfgrid-4 {
  -ms-grid-columns: 1fr 24px 1fr 24px 1fr 24px 1fr;
  grid-template-columns: repeat(4, 1fr);
}

.zdb4cfgrid-4 > .zdb4cffeature-item {
  width: calc(25% - 24px);
  margin: 12px;
}

@supports (display: grid) {
  .zdb4cfgrid-2 > .zdb4cfblock,
  .zdb4cfgrid-3 > .zdb4cfblock,
  .zdb4cfgrid-3 > .zdb4cffeature-item,
  .zdb4cfgrid-4 > .zdb4cffeature-item {
    width: auto;
    margin: 0;
  }
}

.zdb4cfblock {
  padding: 28px 24px;
  background: #ffffff;
  border: 1px solid #dce5ee;
  border-radius: 8px;
  min-width: 0;
}

.zdb4cfblock-media {
  margin: 0 0 16px;
  overflow: hidden;
  border-radius: 8px;
}

.zdb4cfblock-img {
  display: block;
  width: 100%;
  height: auto;
  -o-object-fit: cover;
  object-fit: cover;
}

.zdb4cfblock-title {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 700;
  color: #0a1c30;
}

.zdb4cfblock-text {
  margin: 0;
  font-size: 14px;
  color: #4a5d70;
}

/* ===== 功能项 ===== */
.zdb4cffeature-item {
  padding: 24px 18px;
  text-align: center;
  border-top: 3px solid #2dd4bf;
  background: #f7fafc;
  border-radius: 0 0 8px 8px;
  min-width: 0;
}

.zdb4cffeature-title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: #0a1c30;
}

.zdb4cffeature-text {
  margin: 0;
  font-size: 14px;
  color: #4a5d70;
}

/* ===== 使用步骤 ===== */
.zdb4cfsteps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: css365jz-step;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  display: -ms-grid;
  display: grid;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  gap: 20px;
}

.zdb4cfstep {
  position: relative;
  padding: 24px 24px 24px 72px;
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid #dce5ee;
  counter-increment: css365jz-step;
  margin-bottom: 20px;
}

@supports (gap: 20px) {
  .zdb4cfstep {
    margin-bottom: 0;
  }
}

.zdb4cfstep::before {
  content: counter(css365jz-step);
  position: absolute;
  left: 20px;
  top: 24px;
  width: 36px;
  height: 36px;
  line-height: 36px;
  text-align: center;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  background: #0a1c30;
  color: #5eead4;
  font-weight: 700;
  font-size: 15px;
  border-radius: 50%;
}

.zdb4cfstep-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: #0a1c30;
}

.zdb4cfstep-text {
  margin: 0;
  font-size: 14px;
  color: #4a5d70;
}

/* ===== FAQ ===== */
.zdb4cffaq-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  display: -ms-grid;
  display: grid;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
}

.zdb4cffaq-item {
  padding: 22px 24px;
  background: #f7fafc;
  border-left: 4px solid #2dd4bf;
  border-radius: 0 8px 8px 0;
  margin-bottom: 16px;
}

@supports (gap: 16px) {
  .zdb4cffaq-item {
    margin-bottom: 0;
  }
}

.zdb4cffaq-q {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: #0a1c30;
}

.zdb4cffaq-a {
  margin: 0;
  font-size: 14px;
  color: #4a5d70;
}

/* ===== CTA ===== */
.zdb4cfcta-inner {
  max-width: 560px;
  margin: 0 auto;
}

.zdb4cfcta-title {
  margin: 0 0 12px;
  font-size: 28px;
  font-weight: 700;
}

.zdb4cfcta-text {
  margin: 0 0 28px;
  color: #b8c9d8;
  font-size: 15px;
}

/* ===== 页脚 ===== */
.zdb4cffooter {
  background: #071422;
  color: #8fa3b5;
  padding: 40px 0;
  padding-bottom: calc(40px + constant(safe-area-inset-bottom));
  padding-bottom: calc(40px + env(safe-area-inset-bottom));
  text-align: center;
}

.zdb4cffooter-brand {
  margin: 0 0 10px;
  font-size: 15px;
  color: #c5d5e4;
  font-weight: 600;
}

.zdb4cffooter-note {
  margin: 0 auto 16px;
  font-size: 13px;
  max-width: 520px;
}

.zdb4cffooter-copy {
  margin: 0;
  font-size: 12px;
  color: #6a7f92;
}

/* ===== 广告位 ===== */
.zdb4cfad {
  width: 100%;
  overflow: hidden;
  text-align: center;
}

.zdb4cfad-top {
  padding: 20px 0 0;
  background: #ffffff;
}

.zdb4cfad-footer {
  margin: 0 0 20px;
}

.zdb4cfad img {
  max-width: 100%;
  height: auto;
}

/* ===== 友情链接 ===== */
.zdb4cfflink {
  margin: 0 0 24px;
  text-align: left;
}

.zdb4cfflink-title {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 700;
  color: #c5d5e4;
  text-align: center;
}

.zdb4cfflink-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  list-style: none;
}

.zdb4cfflink-list li {
  margin: 4px 10px;
}

.zdb4cfflink-list a {
  color: #8fa3b5;
  font-size: 13px;
  text-decoration: none;
}

.zdb4cfflink-list a:hover,
.zdb4cfflink-list a:focus {
  color: #5eead4;
}

.zdb4cffooter-power {
  font-size: 12px;
  color: #6a7f92;
  line-height: 1.8;
}

.zdb4cffooter-power p {
  margin: 0 0 6px;
}

.zdb4cffooter-power a {
  color: #8fa3b5;
  text-decoration: none;
}

.zdb4cffooter-power a:hover,
.zdb4cffooter-power a:focus {
  color: #5eead4;
}

/* ===== 平板横屏 / 中屏 PC ===== */
@media screen and (max-width: 1024px) {
  .zdb4cfbanner {
    padding: 72px 0 80px;
  }

  .zdb4cfsection {
    padding: 64px 0;
  }

  .zdb4cfgrid-4 {
    -ms-grid-columns: 1fr 24px 1fr;
    grid-template-columns: repeat(2, 1fr);
  }

  .zdb4cfgrid-4 > .zdb4cffeature-item {
    width: calc(50% - 24px);
  }

  .zdb4cfgrid-3 {
    -ms-grid-columns: 1fr 24px 1fr;
    grid-template-columns: repeat(2, 1fr);
  }

  .zdb4cfgrid-3 > .zdb4cfblock,
  .zdb4cfgrid-3 > .zdb4cffeature-item {
    width: calc(50% - 24px);
  }

  @supports (display: grid) {
    .zdb4cfgrid-3 > .zdb4cfblock,
    .zdb4cfgrid-3 > .zdb4cffeature-item,
    .zdb4cfgrid-4 > .zdb4cffeature-item {
      width: auto;
      margin: 0;
    }
  }
}

/* ===== 平板竖屏 / 小笔记本 ===== */
@media screen and (max-width: 900px) {
  .zdb4cfbanner-inner {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -ms-grid-columns: 1fr;
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .zdb4cfbanner-content {
    max-width: none;
    width: 100%;
    text-align: center;
    -webkit-box-flex: 0;
    -webkit-flex: 0 0 auto;
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
  }

  .zdb4cfbanner-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .zdb4cfbanner-actions {
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
  }

  .zdb4cfbanner-visual {
    width: 100%;
    -webkit-box-flex: 0;
    -webkit-flex: 0 0 auto;
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
  }

  .zdb4cfbanner-img {
    max-width: 380px;
  }

  .zdb4cfdl-frame {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -ms-grid-columns: 1fr;
    grid-template-columns: 1fr;
  }

  .zdb4cfdl-main,
  .zdb4cfdl-side {
    -webkit-box-flex: 0;
    -webkit-flex: 0 0 auto;
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    width: 100%;
  }

  .zdb4cfdl-side {
    grid-template-rows: none;
  }

  .zdb4cfdl-side-item + .zdb4cfdl-side-item,
  .zdb4cfdl-tip {
    margin-top: 16px;
  }

  @supports (gap: 16px) {
    .zdb4cfdl-side-item + .zdb4cfdl-side-item,
    .zdb4cfdl-tip {
      margin-top: 0;
    }
  }
}

/* ===== 手机横屏 / 小平板 ===== */
@media screen and (max-width: 768px) {
  .zdb4cfnav-wrap {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: start;
    -webkit-align-items: flex-start;
    -ms-flex-align: start;
    align-items: flex-start;
    padding-top: 14px;
    padding-top: calc(14px + constant(safe-area-inset-top));
    padding-top: calc(14px + env(safe-area-inset-top));
    padding-bottom: 14px;
    min-height: auto;
  }

  .zdb4cflogo {
    margin-right: 0;
    margin-bottom: 8px;
  }

  .zdb4cfnav,
  .zdb4cfnav-list {
    width: 100%;
  }

  .zdb4cfbanner {
    padding: 48px 0 56px;
  }

  .zdb4cfbanner-title {
    font-size: 28px;
  }

  .zdb4cfsection {
    padding: 48px 0;
  }

  .zdb4cfsection-head {
    margin-bottom: 28px;
  }

  .zdb4cfsection-title {
    font-size: 24px;
  }

  .zdb4cfdl-main-body {
    padding: 22px 20px 24px;
  }

  .zdb4cfdl-title {
    font-size: 20px;
  }

  .zdb4cfgrid-2,
  .zdb4cfgrid-3,
  .zdb4cfgrid-4 {
    -ms-grid-columns: 1fr;
    grid-template-columns: 1fr;
  }

  .zdb4cfgrid-2 > .zdb4cfblock,
  .zdb4cfgrid-3 > .zdb4cfblock,
  .zdb4cfgrid-3 > .zdb4cffeature-item,
  .zdb4cfgrid-4 > .zdb4cffeature-item {
    width: calc(100% - 24px);
  }

  @supports (display: grid) {
    .zdb4cfgrid-2 > .zdb4cfblock,
    .zdb4cfgrid-3 > .zdb4cfblock,
    .zdb4cfgrid-3 > .zdb4cffeature-item,
    .zdb4cfgrid-4 > .zdb4cffeature-item {
      width: auto;
      margin: 0;
    }
  }

  .zdb4cfstep {
    padding: 20px 18px 20px 64px;
  }

  .zdb4cfstep::before {
    left: 16px;
    top: 20px;
  }

  .zdb4cfcta-title {
    font-size: 24px;
  }

  .zdb4cfsection-cta {
    padding: 48px 0;
  }
}

/* ===== 手机竖屏 ===== */
@media screen and (max-width: 480px) {
  .zdb4cfcontainer {
    padding: 0 16px;
    padding-left: calc(16px + constant(safe-area-inset-left));
    padding-right: calc(16px + constant(safe-area-inset-right));
    padding-left: calc(16px + env(safe-area-inset-left));
    padding-right: calc(16px + env(safe-area-inset-right));
  }

  .zdb4cflogo-link {
    font-size: 20px;
  }

  .zdb4cfnav-item {
    margin: 2px;
  }

  .zdb4cfnav-link {
    padding: 10px 8px;
    font-size: 13px;
  }

  .zdb4cfbanner {
    padding: 40px 0 48px;
  }

  .zdb4cfbanner-title {
    font-size: 24px;
  }

  .zdb4cfbanner-desc {
    font-size: 15px;
    margin-bottom: 24px;
  }

  .zdb4cfbanner-actions {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    width: 100%;
  }

  .zdb4cfbanner-actions .zdb4cfbtn,
  .zdb4cfbtn {
    width: 100%;
    max-width: 100%;
    text-align: center;
  }

  .zdb4cfbanner-img {
    max-width: 100%;
    border-radius: 10px;
  }

  .zdb4cfdl-main-img {
    max-height: 200px;
  }

  .zdb4cfdl-side-item {
    -ms-grid-columns: 48px 12px 1fr;
    grid-template-columns: 48px 1fr;
    padding: 18px 16px;
    gap: 12px;
  }

  .zdb4cfdl-side-icon {
    width: 48px;
    height: 48px;
    font-size: 12px;
    margin-right: 12px;
  }

  @supports (display: grid) {
    .zdb4cfdl-side-icon {
      margin-right: 0;
    }
  }

  .zdb4cfdl-side-title {
    font-size: 16px;
  }

  .zdb4cfblock,
  .zdb4cffaq-item {
    padding: 18px 16px;
  }

  .zdb4cffeature-item {
    padding: 20px 14px;
  }

  .zdb4cfcta-title {
    font-size: 22px;
  }
}

/* ===== 超小屏 ===== */
@media screen and (max-width: 360px) {
  .zdb4cfbanner-title {
    font-size: 22px;
  }

  .zdb4cfsection-title {
    font-size: 22px;
  }

  .zdb4cfnav-link {
    padding: 8px 6px;
    font-size: 12px;
    min-height: 40px;
  }
}

/* ===== 打印友好 ===== */
@media print {
  .zdb4cfheader {
    position: static;
  }

  .zdb4cfbanner,
  .zdb4cfsection-cta {
    background: #fff !important;
    color: #000 !important;
  }

  .zdb4cfbtn {
    border: 1px solid #000;
  }
}