.page-products{
  --pc-grid: rgba(244,239,230,.06);
  --pc-gold: rgba(201,160,99,.16);
  --pc-red: rgba(212,0,0,.16);
  --pc-paper-grid: rgba(26,27,28,.05);
  --pc-ink-panel: #202224;
  background: var(--ink);
  color: var(--white);
}
.page-products .tif-container{
  position: relative;
  z-index: 1;
}
.page-products .tif-breadcrumb{
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: 1rem 0 0;
  font-family: var(--font-body);
  font-size: .85rem;
  color: var(--steel);
}
.page-products .tif-breadcrumb a{
  color: var(--steel);
  text-decoration: none;
  transition: color .2s;
}
.page-products .tif-breadcrumb a:hover{
  color: var(--gold-light);
}
.page-products .tif-breadcrumb [aria-current="page"]{
  color: var(--gold-light);
}
.page-products .tif-kicker{
  display: inline-block;
  padding-left: .85rem;
  border-left: 3px solid var(--red);
  color: var(--gold-light);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  font-size: .78rem;
  margin-bottom: .8rem;
}
.page-products .tif-section-head{
  max-width: 56rem;
  margin-bottom: 2.2rem;
}
.page-products .tif-section-head .tif-index{
  font-family: var(--font-head);
  font-size: 3.2rem;
  line-height: .9;
  color: transparent;
  -webkit-text-stroke: 1px rgba(212,0,0,.7);
  display: block;
  margin-bottom: .8rem;
  user-select: none;
}
.page-products .tif-section-head h2{
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  line-height: 1.18;
  margin: .4rem 0 .8rem;
  color: var(--white);
}
.page-products .tif-section-head .tif-lead{
  color: rgba(244,239,230,.7);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 42rem;
}
.page-products .tif-section--paper{
  background: var(--paper);
  color: var(--graphite);
}
.page-products .tif-section--paper .tif-section-head h2{
  color: var(--graphite);
}
.page-products .tif-section--paper .tif-section-head .tif-lead{
  color: #494b4e;
}
.page-products .tif-section--paper .tif-kicker{
  border-left-color: var(--gold);
  color: var(--red-dark);
}
.page-products .tif-section--paper .tif-index{
  -webkit-text-stroke: 1px rgba(212,0,0,.8);
}
.page-products .tif-frame{
  aspect-ratio: auto;
  overflow: hidden;
}
.page-products .tif-frame img{
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ===== 01 下载中心 ===== */
.page-products .dl-hero{
  position: relative;
  padding: clamp(2rem, 5vw, 4.5rem) 0;
  background:
    linear-gradient(135deg, rgba(212,0,0,.1), transparent 42%),
    radial-gradient(circle at 78% 10%, rgba(201,160,99,.12), transparent 34%),
    var(--ink);
  overflow: hidden;
}
.page-products .dl-hero::after{
  content: "";
  display: none;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 46%;
  background-image:
    linear-gradient(rgba(244,239,230,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244,239,230,.045) 1px, transparent 1px);
  background-size: 44px 44px;
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
  z-index: 0;
}
.page-products .dl-hero-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
  align-items: center;
}
.page-products .dl-hero-copy{
  max-width: 46rem;
}
.page-products .dl-hero-copy h1{
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 5vw, 3rem);
  line-height: 1.2;
  letter-spacing: .01em;
  margin: 0 0 1.1rem;
  color: var(--white);
}
.page-products .dl-hero-copy .tif-lead{
  color: rgba(244,239,230,.74);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 40rem;
}
.page-products .dl-actions{
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 1.8rem;
}
.page-products .dl-actions .tif-btn{
  font-weight: 600;
  transition: transform .18s, box-shadow .18s, background .18s;
}
.page-products .dl-actions .tif-btn:hover{
  transform: translateY(-2px);
}
.page-products .dl-stats{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2.4rem;
  border-top: 1px solid rgba(244,239,230,.12);
  padding-top: 1.6rem;
  max-width: 40rem;
}
.page-products .dl-stat{
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.page-products .dl-num{
  font-family: var(--font-head);
  font-size: 1.9rem;
  color: var(--red);
  line-height: 1;
}
.page-products .dl-txt{
  font-size: .82rem;
  color: var(--steel);
  line-height: 1.5;
}
.page-products .dl-visual{
  position: relative;
  max-width: 11.5rem;
  margin: 0 auto;
  transform: rotate(2deg) translateY(.4rem);
}
.page-products .dl-phone-img{
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1rem;
  border: 1px solid rgba(244,239,230,.16);
  box-shadow: 0 26px 60px rgba(0,0,0,.5), 0 0 0 1px rgba(201,160,99,.16);
}
.page-products .dl-visual-tag{
  position: absolute;
  left: -1.2rem;
  bottom: 1.2rem;
  background: var(--red);
  color: var(--white);
  font-size: .75rem;
  font-weight: 700;
  padding: .4rem .7rem;
  border-radius: .25rem;
  box-shadow: 0 6px 16px rgba(0,0,0,.3);
}

/* ===== 02 功能矩阵 ===== */
.page-products .section-features{
  position: relative;
  padding: clamp(3rem, 7vw, 6rem) 0;
  background:
    linear-gradient(rgba(244,239,230,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244,239,230,.035) 1px, transparent 1px),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-soft) 45%, var(--ink) 100%);
  background-size: 56px 56px, 56px 56px, 100% 100%;
}
.page-products .feature-wrap{
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  margin-bottom: 1.6rem;
}
.page-products .feature-card{
  border-radius: var(--radius);
  padding: 1.6rem;
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(244,239,230,.09);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: .7rem;
  position: relative;
  overflow: hidden;
}
.page-products .feature-card::before{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(var(--red), transparent);
}
.page-products .feature-card h3{
  font-family: var(--font-head);
  font-size: 1.35rem;
  margin: 0;
  color: var(--white);
}
.page-products .feature-card p{
  color: rgba(244,239,230,.68);
  font-size: .95rem;
  line-height: 1.65;
  margin: 0;
}
.page-products .feature-icon{
  width: 2.8rem;
  height: 2.8rem;
  border-radius: .45rem;
  background: rgba(212,0,0,.12);
  color: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-products .feature-icon svg{
  width: 30px;
  height: 30px;
}
.page-products .feature-steps{
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: auto;
  padding-top: .8rem;
}
.page-products .feature-steps span{
  border: 1px solid rgba(201,160,99,.3);
  color: var(--gold-light);
  font-size: .78rem;
  padding: .3rem .6rem;
  border-radius: 2rem;
}
.page-products .feature-chips{
  display: flex;
  gap: .5rem;
  margin-top: auto;
  padding-top: .8rem;
}
.page-products .feature-card--dark{
  background: rgba(212,0,0,.08);
  border-color: rgba(212,0,0,.18);
}
.page-products .feature-card--dark::before{
  background: linear-gradient(var(--gold-light), transparent);
}
.page-products .feature-card--dark p{
  color: rgba(244,239,230,.72);
}
.page-products .tf-gold{
  color: var(--gold-light);
  font-size: .8rem;
  letter-spacing: .08em;
  margin-top: auto;
}
.page-products .feature-banner{
  margin-top: 1.8rem;
  position: relative;
}
.page-products .feature-banner img{
  width: 100%;
  height: auto;
  max-height: 24rem;
  object-fit: cover;
  object-position: center;
  border-radius: var(--radius);
}
.page-products .banner-note{
  display: inline-block;
  margin-top: .8rem;
  color: var(--steel);
  font-size: .82rem;
  border-left: 3px solid var(--gold);
  padding-left: .8rem;
}

/* ===== 03 下载提速 ===== */
.page-products .section-speed{
  background:
    radial-gradient(circle at 15% 20%, rgba(212,0,0,.14), transparent 32%),
    var(--ink-soft);
  padding: clamp(3rem, 7vw, 5.5rem) 0;
}
.page-products .speed-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}
.page-products .speed-copy{
  max-width: 36rem;
}
.page-products .speed-copy p{
  color: rgba(244,239,230,.76);
  line-height: 1.8;
  margin: 0 0 1.2rem;
}
.page-products .speed-list{
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}
.page-products .speed-list li{
  padding-left: 1.5rem;
  position: relative;
  color: var(--white);
  font-size: .95rem;
}
.page-products .speed-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: .55rem;
  height: .55rem;
  background: var(--red);
  transform: rotate(45deg);
}
.page-products .speed-figure img{
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* ===== 04 数据覆盖 ===== */
.page-products .section-leagues{
  padding: clamp(3rem, 7vw, 6rem) 0;
}
.page-products .league-grid{
  display: grid;
  gap: 2rem;
  align-items: stretch;
}
.page-products .league-chart img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}
.page-products .league-stats{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.page-products .league-stat-card{
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid rgba(26,27,28,.08);
  box-shadow: 0 6px 18px rgba(26,27,28,.05);
  padding: 1.2rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: .4rem;
  min-height: 6.5rem;
}
.page-products .league-num{
  font-family: var(--font-head);
  font-size: 2.1rem;
  color: var(--red-dark);
  line-height: 1;
}
.page-products .league-label{
  font-size: .82rem;
  color: var(--steel);
  line-height: 1.5;
}

/* ===== 05 版本演进 ===== */
.page-products .section-versions{
  padding: clamp(3rem, 7vw, 6rem) 0;
  background: linear-gradient(160deg, var(--ink) 0%, var(--ink-soft) 55%, var(--ink) 100%);
}
.page-products .version-track{
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(72%, 1fr);
  gap: 1rem;
  overflow-x: auto;
  padding-bottom: 1.1rem;
  margin-bottom: 2rem;
  scrollbar-width: thin;
  scrollbar-color: var(--red) rgba(244,239,230,.08);
}
.page-products .version-track::-webkit-scrollbar{
  height: .5rem;
}
.page-products .version-track::-webkit-scrollbar-track{
  background: rgba(244,239,230,.06);
}
.page-products .version-track::-webkit-scrollbar-thumb{
  background: var(--red);
  border-radius: 3rem;
}
.page-products .version-item{
  position: relative;
  padding: 1.5rem 1.2rem 1.5rem 1.8rem;
  border: 1px solid rgba(244,239,230,.08);
  border-left: 3px solid var(--red);
  border-radius: var(--radius);
  background: rgba(255,255,255,.04);
}
.page-products .version-code{
  font-family: var(--font-head);
  color: var(--gold-light);
  font-weight: 700;
  letter-spacing: .08em;
  font-size: .82rem;
}
.page-products .version-item h3{
  font-size: 1.2rem;
  color: var(--white);
  margin: .5rem 0 .35rem;
  font-family: var(--font-head);
}
.page-products .version-item p{
  color: rgba(244,239,230,.64);
  font-size: .9rem;
  line-height: 1.6;
  margin: 0;
}
.page-products .version-figure{
  margin-top: 2rem;
  position: relative;
}
.page-products .version-figure img{
  width: 100%;
  height: auto;
  max-height: 22rem;
  object-fit: cover;
  border-radius: var(--radius);
}
.page-products .version-caption{
  display: block;
  margin-top: .9rem;
  color: rgba(244,239,230,.6);
  font-size: .82rem;
  line-height: 1.7;
}

/* ===== 06 支持与反馈 ===== */
.page-products .section-support{
  padding: clamp(3rem, 7vw, 6rem) 0;
}
.page-products .support-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.page-products .support-card{
  display: block;
  padding: 1.8rem;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid rgba(26,27,28,.08);
  box-shadow: 0 8px 24px rgba(26,27,28,.06);
  text-decoration: none;
  color: var(--graphite);
  position: relative;
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.page-products .support-card:hover{
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(26,27,28,.12);
}
.page-products .support-card--red{
  background: var(--red);
  color: var(--white);
}
.page-products .support-card--red:hover{
  background: var(--red-dark);
}
.page-products .support-num{
  font-family: var(--font-head);
  font-size: .85rem;
  letter-spacing: .1em;
  opacity: .55;
}
.page-products .support-card h3{
  font-family: var(--font-head);
  font-size: 1.4rem;
  margin: .6rem 0 .4rem;
  color: var(--graphite);
}
.page-products .support-card--red h3{
  color: var(--white);
}
.page-products .support-card p{
  font-size: .9rem;
  line-height: 1.6;
  margin: 0 2.4rem 1rem 0;
  color: var(--steel);
}
.page-products .support-card--red p{
  color: rgba(255,255,255,.86);
}
.page-products .support-arrow{
  position: absolute;
  right: 1.4rem;
  bottom: 1.2rem;
  font-size: 1.5rem;
  font-weight: 700;
  opacity: .8;
}
.page-products .support-back{
  margin-top: 2rem;
  text-align: center;
  font-size: .9rem;
  color: var(--steel);
}
.page-products .support-back a{
  color: var(--red-dark);
  text-decoration: none;
  border-bottom: 1px solid rgba(212,0,0,.4);
}

/* ===== 响应式 ===== */
@media (min-width: 900px){
  .page-products .dl-hero::after{
    display: block;
  }
  .page-products .dl-hero-grid{
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 3rem;
  }
  .page-products .dl-visual{
    margin: 0;
    max-width: 15rem;
  }
  .page-products .feature-wrap{
    grid-template-columns: repeat(12, 1fr);
    gap: 1.4rem;
    margin-bottom: 2rem;
    padding-bottom: 1.6rem;
  }
  .page-products .feature-card--wide{
    grid-column: span 7;
    min-height: 17rem;
  }
  .page-products .feature-card--tall{
    grid-column: span 5;
    min-height: 17rem;
    transform: translateY(1.2rem);
  }
  .page-products .feature-card--normal{
    grid-column: span 5;
    transform: translateY(1.6rem);
  }
  .page-products .feature-card--dark{
    grid-column: span 7;
    transform: translateY(1.6rem);
  }
  .page-products .speed-grid{
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  .page-products .speed-figure img{
    min-height: 18rem;
    object-fit: cover;
  }
  .page-products .league-grid{
    grid-template-columns: 1.2fr 1fr;
  }
  .page-products .league-stats{
    grid-template-columns: 1fr;
  }
  .page-products .league-stat-card{
    min-height: 6rem;
    justify-content: center;
  }
  .page-products .version-track{
    grid-auto-columns: minmax(20rem, 1fr);
    padding-bottom: 1.6rem;
  }
  .page-products .support-grid{
    grid-template-columns: repeat(3, 1fr);
  }
}