.page-products{
  --pp-gold-glow: rgba(212,175,55,.14);
  --pp-orange-glow: rgba(255,107,53,.10);
  --pp-cyan-glow: rgba(100,255,218,.07);
  --pp-line: rgba(176,196,222,.16);
  --pp-card-bg: rgba(27,42,74,.72);
  --pp-radius-lg: 20px;
  --pp-radius-md: 14px;
  --pp-radius-sm: 10px;
  background: var(--c-ink);
  color: var(--c-paper);
}

.page-products img{
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ========== 首屏 ========== */
.page-products .pp-hero{
  position: relative;
  padding: 40px 0 52px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 82% 12%, rgba(212,175,55,.12), transparent 46%),
    linear-gradient(180deg, var(--c-ink) 0%, var(--c-ink-deep) 100%);
  border-bottom: 1px solid var(--border-gold);
}

.page-products .pp-hero__container{
  position: relative;
  z-index: 2;
}

.page-products .pp-hero__layout{
  display: grid;
  gap: 36px;
  margin-top: 34px;
}

.page-products .pp-hero__kicker{
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.page-products .pp-hero__num{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--c-gold);
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  padding: 4px 14px;
}

.page-products .pp-hero__tagline{
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-moon);
  text-transform: uppercase;
}

.page-products .pp-hero h1{
  font-family: var(--font-title);
  font-size: clamp(30px, 6vw, 56px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--c-paper);
  max-width: 680px;
  margin: 0 0 20px;
}

.page-products .pp-hero__lead{
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-moon);
  max-width: 620px;
  margin-bottom: 28px;
}

.page-products .pp-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pp-hero__aside{
  position: relative;
}

.page-products .pp-hero__panel{
  position: relative;
  z-index: 2;
  background: var(--pp-card-bg);
  border: 1px solid var(--border-gold);
  border-radius: var(--pp-radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}

.page-products .pp-hero__panel-head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.page-products .pp-hero__panel-label{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-products .pp-hero__panel-dot{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 12px var(--c-cyan);
}

.page-products .pp-hero__stats{
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .pp-hero__stat{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--pp-line);
  padding-bottom: 12px;
}

.page-products .pp-hero__stat:last-child{
  border-bottom: none;
  padding-bottom: 0;
}

.page-products .pp-hero__stat dt{
  font-size: 14px;
  color: var(--c-moon);
}

.page-products .pp-hero__stat dd{
  margin: 0;
  font-family: var(--font-mono);
  color: var(--c-gold);
}

.page-products .pp-hero__stat dt,
.page-products .pp-hero__stat dd{
  margin: 0;
}

.page-products .pp-hero__stat dd strong{
  font-size: 28px;
  font-weight: 900;
}

.page-products .pp-hero__stat dd em{
  font-style: normal;
  font-size: 14px;
  margin-left: 2px;
}

.page-products .pp-hero__stamp{
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-gold);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-moon);
}

.page-products .pp-hero__speedlines{
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  padding-left: 12px;
}

.page-products .pp-hero__line{
  display: block;
  height: 2px;
  border-radius: 2px;
  transform: skewX(-20deg);
}

.page-products .pp-hero__line--gold{
  width: 78%;
  background: linear-gradient(90deg, transparent, var(--c-gold), transparent);
  opacity: .55;
}

.page-products .pp-hero__line--cyan{
  width: 54%;
  background: linear-gradient(90deg, transparent, var(--c-cyan), transparent);
  opacity: .35;
}

.page-products .pp-hero__line--orange{
  width: 36%;
  background: linear-gradient(90deg, transparent, var(--c-orange), transparent);
  opacity: .30;
}

/* ========== 页面章节标题 ========== */
.page-products .pp-section-head{
  position: relative;
  padding-top: 22px;
  margin-bottom: 30px;
}

.page-products .pp-section-head::before{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-gold), transparent);
  border-radius: 2px;
}

.page-products .pp-section-head .section-title{
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-products .pp-section-head .section-desc{
  max-width: 720px;
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-moon);
}

/* ========== 功能矩阵 ========== */
.page-products .pp-func-map{
  position: relative;
  border: 1px solid var(--border-gold);
  border-radius: var(--pp-radius-lg);
  overflow: hidden;
  margin: 0 0 28px;
  background: var(--c-navy);
}

.page-products .pp-func-map img{
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-func-map__caption{
  display: block;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--c-moon);
  border-top: 1px solid var(--border-gold);
}

.page-products .pp-func-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-products .pp-func-card{
  position: relative;
  background: var(--pp-card-bg);
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius-md);
  padding: 22px;
  overflow: hidden;
  transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
}

.page-products .pp-func-card::before{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--c-gold), transparent 80%);
  opacity: 0;
  transition: opacity .25s ease;
}

@media (hover: hover){
  .page-products .pp-func-card:hover{
    border-color: var(--border-gold);
    box-shadow: 0 10px 40px rgba(0,0,0,.35), 0 0 0 1px var(--border-gold);
    transform: translateY(-2px);
  }
  .page-products .pp-func-card:hover::before{
    opacity: 1;
  }
}

.page-products .pp-func-card__head{
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.page-products .pp-func-card__num{
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 900;
  color: var(--c-gold);
}

.page-products .pp-func-card__title{
  font-size: 20px;
  font-weight: 800;
  color: var(--c-paper);
  margin-right: auto;
}

.page-products .pp-func-card__badge{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-cyan);
  border: 1px solid rgba(100,255,218,.22);
  border-radius: 999px;
  padding: 4px 10px;
}

.page-products .pp-func-card__desc{
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-moon);
  margin: 0 0 14px;
}

.page-products .pp-func-card__list{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pp-func-card__list span{
  font-size: 12px;
  color: var(--c-paper);
  background: var(--c-navy);
  border: 1px solid var(--pp-line);
  border-radius: 999px;
  padding: 4px 12px;
  letter-spacing: .02em;
}

.page-products .pp-func-details{
  margin-top: 16px;
  border-top: 1px solid var(--pp-line);
  padding-top: 12px;
}

.page-products .pp-func-details summary{
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-gold);
  transition: color .2s ease;
}

.page-products .pp-func-details summary::-webkit-details-marker{
  display: none;
}

.page-products .pp-func-details summary::after{
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  transition: transform .2s ease;
}

.page-products .pp-func-details[open] summary::after{
  content: "−";
}

.page-products .pp-func-details ul{
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .pp-func-details li{
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-moon);
}

.page-products .pp-func-details li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--c-cyan);
  transform: rotate(45deg);
}

/* ========== 桌面端应用 ========== */
.page-products .pp-desktop{
  background: linear-gradient(180deg, var(--c-navy) 0%, var(--c-ink) 100%);
  border-top: 1px solid var(--pp-line);
  border-bottom: 1px solid var(--pp-line);
}

.page-products .pp-desktop__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
}

.page-products .pp-desktop__figure{
  position: relative;
  border: 1px solid var(--border-gold);
  border-radius: var(--pp-radius-lg);
  overflow: hidden;
  margin: 0;
  background: var(--c-navy);
}

.page-products .pp-desktop__figure img{
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-desktop__figure figcaption{
  display: block;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-moon);
  border-top: 1px solid var(--border-gold);
}

.page-products .pp-desktop__features{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-products .pp-desktop__features li{
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.page-products .pp-desktop__feature-icon{
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-gold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-gold);
  border-radius: 50%;
  flex-shrink: 0;
}

.page-products .pp-desktop__features h3{
  font-size: 17px;
  font-weight: 800;
  color: var(--c-paper);
  margin: 0 0 6px;
}

.page-products .pp-desktop__features p{
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-moon);
  margin: 0;
}

.page-products .pp-desktop__toggle{
  margin-top: 22px;
  background: rgba(100,255,218,.05);
  border: 1px solid var(--pp-line);
  border-left: 2px solid var(--c-cyan);
  border-radius: 0 var(--pp-radius-sm) var(--pp-radius-sm) 0;
  padding: 12px 14px;
}

.page-products .pp-desktop__toggle summary{
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-cyan);
}

.page-products .pp-desktop__toggle summary::-webkit-details-marker{
  display: none;
}

.page-products .pp-desktop__toggle p{
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-moon);
}

/* ========== 回访订阅服务 ========== */
.page-products .pp-subscribe__steps{
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 32px;
}

.page-products .pp-subscribe__step{
  position: relative;
  padding: 24px;
  background: var(--pp-card-bg);
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius-md);
  transition: border-color .25s ease, box-shadow .25s ease;
}

@media (hover: hover){
  .page-products .pp-subscribe__step:hover{
    border-color: var(--border-gold);
    box-shadow: 0 8px 30px rgba(0,0,0,.25), 0 0 0 1px var(--border-gold);
  }
}

.page-products .pp-subscribe__step-num{
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 900;
  color: var(--c-gold);
  opacity: .85;
}

.page-products .pp-subscribe__step h3{
  font-size: 18px;
  font-weight: 800;
  color: var(--c-paper);
  margin: 12px 0 6px;
}

.page-products .pp-subscribe__step p{
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-moon);
  margin: 0;
}

.page-products .pp-subscribe__media{
  margin: 28px auto 0;
  max-width: 800px;
  border: 1px solid var(--border-gold);
  border-radius: var(--pp-radius-lg);
  overflow: hidden;
  background: var(--c-navy);
}

.page-products .pp-subscribe__media img{
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-subscribe__media figcaption{
  display: block;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-moon);
  border-top: 1px solid var(--border-gold);
}

/* ========== 数据安全与隐私 ========== */
.page-products .pp-security__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
}

.page-products .pp-security__media{
  border: 1px solid var(--border-gold);
  border-radius: var(--pp-radius-lg);
  overflow: hidden;
  background: var(--c-navy);
}

.page-products .pp-security__media img{
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-security__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-products .pp-security__list li{
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.page-products .pp-security__list-num{
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-gold);
  border: 1px solid var(--border-gold);
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}

.page-products .pp-security__list h3{
  font-size: 17px;
  font-weight: 800;
  color: var(--c-paper);
  margin: 0 0 6px;
}

.page-products .pp-security__list p{
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-moon);
  margin: 0;
}

/* ========== 平台支持 ========== */
.page-products .pp-devices__layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
}

.page-products .pp-devices__text p{
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-moon);
  margin: 0 0 14px;
}

.page-products .pp-devices__text ul{
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pp-devices__text li{
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-moon);
}

.page-products .pp-devices__text li::before{
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--c-gold);
  font-size: 15px;
}

.page-products .pp-devices__media{
  border: 1px solid var(--border-gold);
  border-radius: var(--pp-radius-lg);
  overflow: hidden;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
  background: var(--c-navy);
}

.page-products .pp-devices__media img{
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-devices__media figcaption{
  display: block;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--c-moon);
  border-top: 1px solid var(--border-gold);
}

/* ========== 使用技巧旁注 ========== */
.page-products .pp-tips{
  background: var(--c-paper);
  color: var(--c-ink-deep);
}

.page-products .pp-tips__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-products .pp-tips__label{
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--c-gold);
  margin-bottom: 8px;
}

.page-products .pp-tips__aside h2{
  margin: 0;
  font-size: 26px;
  font-weight: 900;
  color: var(--c-ink-deep);
}

.page-products .pp-tips__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: pp-tip;
}

.page-products .pp-tips__list li{
  counter-increment: pp-tip;
  position: relative;
  padding-left: 30px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-ink-deep);
}

.page-products .pp-tips__list li::before{
  content: "0" counter(pp-tip);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-gold);
}

/* ========== 帮助中心延伸入口 ========== */
.page-products .pp-help__card{
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 28px 22px;
  background: var(--c-navy);
  border: 1px solid var(--border-gold);
  border-radius: var(--pp-radius-lg);
  box-shadow: var(--shadow);
}

.page-products .pp-help__kicker{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--c-gold);
}

.page-products .pp-help__content h2{
  font-size: 24px;
  font-weight: 900;
  color: var(--c-paper);
  margin: 8px 0 8px;
}

.page-products .pp-help__content p{
  font-size: 15px;
  line-height: 1.65;
  color: var(--c-moon);
  margin: 0;
}

.page-products .pp-help__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ========== 响应式增强 ========== */
@media (min-width: 640px){
  .page-products .pp-hero{
    padding: 52px 0 64px;
  }

  .page-products .pp-hero__layout{
    gap: 40px;
  }

  .page-products .pp-func-grid{
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .page-products .pp-func-card--span2{
    grid-column: span 2;
  }

  .page-products .pp-subscribe__steps{
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .page-products .pp-tips__grid{
    grid-template-columns: 200px 1fr;
    gap: 40px;
  }

  .page-products .pp-help__card{
    padding: 36px 42px;
  }
}

@media (min-width: 1024px){
  .page-products .pp-hero__layout{
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: 60px;
    align-items: center;
  }

  .page-products .pp-hero__panel{
    padding: 28px;
  }

  .page-products .pp-func-grid{
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-products .pp-func-card--span2{
    grid-column: span 2;
  }

  .page-products .pp-desktop__layout{
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 48px;
    align-items: center;
  }

  .page-products .pp-security__layout{
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 56px;
    align-items: center;
  }

  .page-products .pp-devices__layout{
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 48px;
    align-items: center;
  }
}