.page-products{
  --card-bg: #0d2447;
  --card-border: rgba(255,107,26,.35);
  --card-shadow: rgba(10,31,61,.12);
  --orange-soft: rgba(255,107,26,.22);
}

.page-products .breadcrumb{
  margin: 0 auto;
  max-width: 1180px;
  padding: 18px 20px 0;
}

.page-products .site-section{
  position: relative;
  overflow: hidden;
}

.page-products .product-overview,
.page-products .product-tech-section,
.page-products .product-scenario-section{
  padding: 68px 0 80px;
}

.page-products .product-feature-section,
.page-products .product-version-section{
  padding: 68px 0 80px;
}

.page-products .section-head{
  margin-bottom: 36px;
  display: flex;
  flex-direction: column;
  gap: 4px 18px;
}

.page-products .section-head__num{
  font-family: var(--font-data);
  font-size: 56px;
  line-height: 1;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: -.04em;
  display: block;
}

.page-products .section-head__wrap{
  min-width: 0;
}

.page-products .section-head__tag{
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 8px;
  font-weight: 700;
}

.page-products .section-head__title{
  font-family: var(--font-head);
  font-size: 28px;
  line-height: 1.25;
  margin: 0 0 10px;
  color: var(--ink);
  overflow-wrap: break-word;
}

.page-products .section-head__sub{
  font-size: 15px;
  line-height: 1.7;
  color: #5a5f66;
  margin: 0;
}

.page-products .section-head--light .section-head__title{
  color: var(--cream);
}

.page-products .section-head--light .section-head__sub{
  color: rgba(245,240,232,.72);
}

/* 01 产品概览 */
.page-products .product-overview::before{
  content: "";
  position: absolute;
  top: 0;
  right: -8%;
  width: 68%;
  height: 100%;
  background: linear-gradient(115deg, transparent 42%, var(--orange-soft) 42%, var(--orange-soft) 46%, transparent 46%);
  pointer-events: none;
}

.page-products .product-overview .container{
  position: relative;
  z-index: 1;
}

.page-products .product-overview__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-products .product-overview__lead{
  font-size: 18px;
  line-height: 1.8;
  color: rgba(245,240,232,.9);
  margin: 0 0 22px;
}

.page-products .product-overview__points{
  display: grid;
  gap: 10px;
  padding: 0;
  list-style: none;
  margin: 0 0 26px;
}

.page-products .product-overview__points li{
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(245,240,232,.78);
}

.page-products .product-overview__points li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 4px;
  background: var(--orange);
  transform: skewX(-30deg);
}

.page-products .product-overview__cta{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .product-overview__media{
  margin: 0;
  position: relative;
}

.page-products .product-overview__media img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 6px;
  box-shadow: 0 24px 48px rgba(0,0,0,.42);
}

.page-products .product-overview__media figcaption{
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(245,240,232,.62);
}

.page-products .product-stats{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 42px 0 0;
}

.page-products .product-stats__item{
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  border-left: 4px solid var(--orange);
  border-radius: 4px;
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .product-stats__num{
  font-family: var(--font-data);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--cream);
}

.page-products .product-stats__label{
  font-size: 13px;
  color: rgba(245,240,232,.66);
}

.page-products .device-access{
  margin-top: 42px;
  border-top: 1px solid rgba(255,255,255,.14);
  padding-top: 28px;
}

.page-products .device-access__title{
  font-family: var(--font-head);
  font-size: 20px;
  color: var(--cream);
  margin: 0 0 18px;
}

.page-products .device-access__list{
  display: grid;
  gap: 12px;
}

.page-products .device-access__item{
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(0,0,0,.14);
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,.08);
}

.page-products .device-access__icon{
  font-size: 26px;
  line-height: 1;
  color: var(--gold);
  font-family: var(--font-data);
}

.page-products .device-access__body{
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-products .device-access__name{
  color: var(--cream);
  font-size: 16px;
  font-weight: 700;
}

.page-products .device-access__desc{
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245,240,232,.68);
}

/* 02 核心功能 */
.page-products .product-feature-section{
  background-image: linear-gradient(135deg, rgba(10,31,61,.035) 25%, transparent 25%),
    linear-gradient(225deg, rgba(10,31,61,.035) 25%, transparent 25%);
  background-size: 24px 24px;
}

.page-products .feature-tabs{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.page-products .feature-tabs__btn{
  appearance: none;
  background: transparent;
  border: 1px solid rgba(10,31,61,.24);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.page-products .feature-tabs__btn:hover{
  border-color: var(--orange);
}

.page-products .feature-tabs__btn.is-active{
  background: var(--ocean);
  border-color: var(--ocean);
  color: var(--cream);
}

.page-products .feature-grid{
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-products .feature-card{
  position: relative;
  background: #ffffff;
  border-top: 4px solid var(--orange);
  padding: 24px 20px 22px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 26px var(--card-shadow);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  transition: transform .32s var(--ease), box-shadow .32s var(--ease);
}

.page-products .feature-card:hover,
.page-products .feature-card:focus-within{
  transform: translateY(-5px);
  box-shadow: 0 18px 34px rgba(10,31,61,.16);
}

.page-products .feature-card__head{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.page-products .feature-card__index{
  font-family: var(--font-data);
  font-size: 28px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

.page-products .feature-card__term{
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  color: #8a8f98;
  text-transform: uppercase;
  border: 1px solid rgba(10,31,61,.16);
  padding: 4px 8px;
  border-radius: 999px;
}

.page-products .feature-card__title{
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.3;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-products .feature-card__desc{
  font-size: 15px;
  line-height: 1.72;
  color: #464b52;
  margin: 0 0 16px;
}

.page-products .feature-card__meta{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0 0 18px;
}

.page-products .feature-card__meta li{
  font-size: 13px;
  line-height: 1.4;
  background: var(--cream);
  color: var(--ocean);
  border-radius: 4px;
  padding: 5px 10px;
  font-family: var(--font-data);
  font-weight: 700;
}

.page-products .feature-card__media{
  margin: 0 0 14px;
}

.page-products .feature-card__media img{
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}

.page-products .feature-card__drawer p{
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: #5f646d;
  border-left: 3px solid var(--orange);
  padding-left: 12px;
}

.page-products .feature-card__drawer{
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(8px);
  transition: max-height .35s var(--ease), opacity .35s var(--ease), transform .35s var(--ease);
}

.page-products .feature-card:hover .feature-card__drawer,
.page-products .feature-card:focus-within .feature-card__drawer{
  max-height: 260px;
  opacity: 1;
  transform: translateY(0);
}

/* 03 技术特性 */
.page-products .product-tech-section::after{
  content: "";
  position: absolute;
  right: -6%;
  bottom: -4%;
  width: 46%;
  height: 22%;
  background: linear-gradient(115deg, transparent 40%, rgba(126,200,227,.12) 40%, rgba(126,200,227,.12) 48%, transparent 48%);
  pointer-events: none;
}

.page-products .product-tech-section .container{
  position: relative;
  z-index: 1;
}

.page-products .tech-grid{
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}

.page-products .tech-card{
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.12);
  border-bottom: 3px solid var(--gold);
  padding: 24px 20px;
  border-radius: 6px;
  position: relative;
}

.page-products .tech-card__num{
  font-family: var(--font-data);
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  display: block;
  margin-bottom: 10px;
}

.page-products .tech-card__title{
  font-size: 18px;
  font-weight: 700;
  color: var(--cream);
  margin: 0 0 8px;
}

.page-products .tech-card__desc{
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245,240,232,.72);
  margin: 0;
}

.page-products .tech-speed{
  background: rgba(0,0,0,.2);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 6px;
  padding: 22px 20px;
  margin-bottom: 36px;
}

.page-products .tech-speed__title{
  font-size: 16px;
  color: var(--cream);
  margin: 0 0 18px;
  font-weight: 700;
}

.page-products .speed-bars{
  display: grid;
  gap: 14px;
}

.page-products .speed-bars__row{
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 12px;
  align-items: center;
}

.page-products .speed-bars__label{
  font-size: 14px;
  color: rgba(245,240,232,.78);
}

.page-products .speed-bars__track{
  height: 18px;
  background: rgba(255,255,255,.1);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}

.page-products .speed-bars__fill{
  display: block;
  height: 100%;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  line-height: 18px;
  padding-left: 12px;
  color: var(--cream);
  white-space: nowrap;
}

.page-products .speed-bars__fill--old{
  width: 100%;
  background: linear-gradient(90deg, #4b5b77, #7b8ca8);
}

.page-products .speed-bars__fill--new{
  width: 40%;
  background: linear-gradient(90deg, var(--orange), #ff9a5c);
}

.page-products .speed-bars__note{
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245,240,232,.72);
  margin: 16px 0 0;
}

.page-products .tech-device-media{
  margin: 0 0 36px;
}

.page-products .tech-device-media img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 6px;
}

.page-products .tech-compare{
  background: rgba(0,0,0,.18);
  border-radius: 6px;
  padding: 22px 16px;
}

.page-products .tech-compare__title{
  font-size: 16px;
  color: var(--cream);
  margin: 0 0 16px;
  font-weight: 700;
}

.page-products .data-table{
  background: transparent;
  border-collapse: collapse;
  width: 100%;
  min-width: 520px;
}

.page-products .data-table th{
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gold);
  padding: 12px 10px;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,.2);
}

.page-products .data-table td{
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245,240,232,.86);
  padding: 12px 10px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

/* 04 版本演进 */
.page-products .product-version-section{
  background-image: radial-gradient(circle at 10% 20%, rgba(201,169,97,.12) 0, transparent 24%);
}

.page-products .version-timeline{
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.page-products .version-item{
  position: relative;
  padding-left: 26px;
  padding-bottom: 30px;
}

.page-products .version-item::before{
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), rgba(255,107,26,.12));
}

.page-products .version-item:last-child::before{
  bottom: 50%;
}

.page-products .version-item::after{
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--ocean);
  border: 3px solid var(--orange);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(255,107,26,.16);
}

.page-products .version-item__badge{
  font-family: var(--font-data);
  font-size: 14px;
  font-weight: 700;
  color: var(--orange);
  background: rgba(255,107,26,.08);
  padding: 4px 10px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 6px;
}

.page-products .version-item__year{
  font-family: var(--font-data);
  font-size: 13px;
  color: #8a8f98;
  margin-left: 8px;
}

.page-products .version-item__title{
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.3;
  color: var(--ink);
  margin: 6px 0 8px;
}

.page-products .version-item__desc{
  font-size: 14px;
  line-height: 1.7;
  color: #5f646d;
  margin: 0;
}

.page-products .version-footnote{
  font-size: 14px;
  color: #5f646d;
  margin: 18px 0 0;
}

.page-products .version-footnote a{
  color: var(--orange);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 05 用户场景 */
.page-products .product-scenario-section{
  background-image: linear-gradient(130deg, rgba(126,200,227,.1) 0%, transparent 42%);
}

.page-products .scenario-grid{
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}

.page-products .scenario-card{
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.12);
  border-top: 4px solid var(--orange);
  border-radius: 6px;
  padding: 24px 20px;
  position: relative;
  transition: transform .3s var(--ease), background .3s var(--ease);
}

.page-products .scenario-card:hover{
  transform: translateX(6px);
  background: rgba(255,255,255,.07);
}

.page-products .scenario-card__head{
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.page-products .scenario-card__num{
  font-family: var(--font-data);
  font-size: 34px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

.page-products .scenario-card__title{
  font-family: var(--font-head);
  font-size: 19px;
  line-height: 1.3;
  color: var(--cream);
  margin: 0;
}

.page-products .scenario-card__desc{
  font-size: 14px;
  line-height: 1.72;
  color: rgba(245,240,232,.78);
  margin: 0 0 16px;
}

.page-products .scenario-card__steps{
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.page-products .scenario-card__steps li{
  counter-increment: step;
  position: relative;
  padding-left: 28px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245,240,232,.88);
}

.page-products .scenario-card__steps{
  counter-reset: step;
}

.page-products .scenario-card__steps li::before{
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  background: var(--orange);
  color: #fff;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  line-height: 20px;
}

.page-products .scenario-media{
  margin: 0;
}

.page-products .scenario-media img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 6px;
  box-shadow: 0 18px 42px rgba(0,0,0,.3);
}

.page-products .scenario-media figcaption{
  margin-top: 10px;
  font-size: 13px;
  color: rgba(245,240,232,.6);
}

/* ===== 平板及以上 ===== */
@media (min-width: 768px){
  .page-products .product-overview,
  .page-products .product-tech-section,
  .page-products .product-scenario-section,
  .page-products .product-feature-section,
  .page-products .product-version-section{
    padding: 84px 0 92px;
  }

  .page-products .section-head{
    flex-direction: row;
    align-items: flex-start;
    gap: 0 22px;
    margin-bottom: 44px;
  }

  .page-products .section-head__num{
    font-size: 76px;
    flex: 0 0 auto;
    width: 120px;
  }

  .page-products .section-head__title{
    font-size: 34px;
  }

  .page-products .product-overview__grid{
    grid-template-columns: 1fr 1.1fr;
    gap: 40px;
    align-items: center;
  }

  .page-products .product-stats{
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 48px;
  }

  .page-products .product-stats__item{
    padding: 22px 18px;
  }

  .page-products .product-stats__num{
    font-size: 36px;
  }

  .page-products .device-access__list{
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .page-products .feature-grid{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-items: stretch;
    gap: 22px;
  }

  .page-products .feature-card{
    padding: 28px 24px 24px;
  }

  .page-products .feature-card__drawer{
    max-height: 0;
    opacity: 0;
    transform: none;
    transition: max-height .4s var(--ease), opacity .4s var(--ease), transform .4s var(--ease);
  }

  .page-products .feature-card:hover .feature-card__drawer,
  .page-products .feature-card:focus-within .feature-card__drawer{
    max-height: 260px;
    opacity: 1;
    transform: none;
  }

  .page-products .tech-grid{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .page-products .tech-speed{
    padding: 28px 26px;
  }

  .page-products .tech-compare{
    padding: 28px 24px;
  }

  .page-products .version-timeline{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px 28px;
  }

  .page-products .version-item{
    padding-bottom: 24px;
  }

  .page-products .scenario-grid{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 1100px){
  .page-products .product-overview,
  .page-products .product-tech-section,
  .page-products .product-scenario-section,
  .page-products .product-feature-section,
  .page-products .product-version-section{
    padding: 100px 0 110px;
  }

  .page-products .section-head{
    gap: 0 30px;
  }

  .page-products .section-head__title{
    font-size: 40px;
  }

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

  .page-products .tech-grid{
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .tech-speed{
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 24px;
    align-items: center;
  }

  .page-products .tech-speed__title{
    margin: 0;
    grid-column:  1 / -1;
  }

  .page-products .speed-bars__note{
    grid-column: 1 / -1;
    margin: 0;
  }

  .page-products .version-timeline{
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    position: relative;
  }

  .page-products .version-item{
    flex: 1 1 180px;
    padding: 34px 20px 0 0;
    position: relative;
  }

  .page-products .version-item::before{
    left: 0;
    right: 20px;
    top: 0;
    bottom: auto;
    width: auto;
    height: 3px;
    background: linear-gradient(90deg, var(--orange), rgba(255,107,26,.14));
  }

  .page-products .version-item::after{
    left: 0;
    top: -6px;
  }

  .page-products .version-item__year{
    display: block;
    margin: 4px 0 0;
  }

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

  .page-products .scenario-media{
    margin-top: 12px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 24px;
  }
}