/* ================= page-products ================= */

.page-products{
  --pp-accent: var(--fluoro-cyan);
  --pp-line: rgba(127, 243, 234, 0.16);
  --pp-line-mid: rgba(127, 243, 234, 0.32);
  --pp-line-strong: rgba(22, 224, 210, 0.58);
  --pp-r-lg: 24px;
  --pp-r-md: 16px;
  --pp-r-sm: 10px;
  position: relative;
  display: block;
  color: var(--mist-white);
  background:
    radial-gradient(120% 70% at 8% 0%, rgba(22, 224, 210, 0.10), transparent 58%),
    radial-gradient(90% 60% at 100% 18%, rgba(255, 107, 74, 0.07), transparent 62%),
    linear-gradient(180deg, var(--deep-sea) 0%, #0C2140 44%, var(--deep-sea) 80%, var(--abyss) 100%);
  overflow-x: clip;
}

.page-products a:focus-visible,
.page-products summary:focus-visible{
  outline: 3px solid var(--mint-fog);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb{
  display: block;
  padding-top: clamp(16px, 2.6vw, 26px);
}
.page-products .breadcrumb__list{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-products .breadcrumb__item{
  color: var(--gray-blue);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.page-products .breadcrumb__item + .breadcrumb__item::before{
  content: "/";
  margin-right: 10px;
  color: var(--line-strong);
}
.page-products .breadcrumb__item a{
  color: var(--aqua-glow);
  text-decoration: none;
  border-bottom: 1px solid var(--line-mid);
}
.page-products .breadcrumb__item a:hover{
  color: var(--mint-fog);
  border-bottom-color: var(--mint-fog);
}

/* ---------- 章节标题 ---------- */
.page-products .section-head{
  margin-bottom: clamp(24px, 4vw, 46px);
}
.page-products .section-head__title{
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--mist-white);
  max-width: 18em;
}
.page-products .section-head__note{
  margin: 16px 0 0;
  max-width: 36em;
  color: var(--gray-blue);
  font-size: 15px;
  line-height: 1.8;
}
.page-products .prose{
  margin: 0 0 18px;
  color: var(--gray-blue);
  font-size: 15.5px;
  line-height: 1.85;
}
.page-products .prose:last-child{
  margin-bottom: 0;
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero{
  padding: clamp(30px, 4.6vw, 62px) 0 clamp(28px, 4vw, 54px);
}
.pp-hero__frame{
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4.2vw, 58px);
  border: 1px solid var(--pp-line);
  border-radius: 28px;
  background:
    linear-gradient(152deg, rgba(18, 51, 90, 0.62) 0%, rgba(10, 27, 51, 0.28) 68%),
    rgba(10, 27, 51, 0.5);
}
.pp-hero__frame::before{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--fluoro-cyan), rgba(22, 224, 210, 0) 68%);
}
.pp-hero__frame::after{
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle at center, rgba(22, 224, 210, 0.20), transparent 68%);
  pointer-events: none;
}
.pp-hero__grid{
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}
.pp-hero h1{
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(31px, 6.2vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--mist-white);
  max-width: 15em;
}
.pp-hero__lead{
  margin: 22px 0 0;
  max-width: 38em;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.82;
  color: var(--gray-blue);
}

.pp-ticks{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.pp-ticks li{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 14px;
  padding-left: 16px;
  border-left: 2px solid var(--pp-line-mid);
}
.pp-ticks b{
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--fluoro-cyan);
  white-space: nowrap;
}
.pp-ticks span{
  color: var(--gray-blue);
  font-size: 14px;
  line-height: 1.7;
}

@media (min-width: 900px){
  .pp-hero__grid{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

/* ---------- 入口卡片 ---------- */
.page-products .pp-paths{
  padding: clamp(20px, 3vw, 38px) 0 clamp(44px, 6.5vw, 88px);
}
.pp-stack{
  display: grid;
  gap: 20px;
}

.pp-card{
  position: relative;
  overflow: hidden;
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-r-lg);
  background: linear-gradient(160deg, rgba(18, 51, 90, 0.9) 0%, rgba(10, 27, 51, 0.96) 100%);
  transition: border-color 0.28s ease, box-shadow 0.28s ease;
}
.pp-card::after{
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--pp-accent), rgba(22, 224, 210, 0) 72%);
  opacity: 0.45;
  transition: opacity 0.28s ease;
}
.pp-card:hover{
  border-color: var(--pp-line-mid);
  box-shadow: 0 20px 46px -30px rgba(22, 224, 210, 0.7);
}
.pp-card:hover::after,
.pp-card[open]::after{
  opacity: 1;
}
.pp-card[open]{
  border-color: var(--pp-line-strong);
  box-shadow: 0 26px 60px -34px rgba(22, 224, 210, 0.55);
}
.pp-card--tablet{ --pp-accent: var(--fluoro-cyan); }
.pp-card--phone{ --pp-accent: var(--signal-gold); }
.pp-card--desktop{ --pp-accent: var(--coral); }

.pp-card__head{
  list-style: none;
  cursor: pointer;
  padding: clamp(20px, 3vw, 28px);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "idx device toggle"
    "brief brief brief";
  gap: 10px 12px;
  align-items: center;
}
.pp-card__head::-webkit-details-marker{ display: none; }
.pp-card__head::marker{ content: ""; }
.pp-card__idx{
  grid-area: idx;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--pp-accent);
}
.pp-card__device{
  grid-area: device;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 3.2vw, 25px);
  letter-spacing: -0.01em;
  color: var(--mist-white);
}
.pp-card__brief{
  grid-area: brief;
  color: var(--gray-blue);
  font-size: 14px;
  line-height: 1.72;
}
.pp-card__toggle{
  grid-area: toggle;
  position: relative;
  width: 26px;
  height: 26px;
  border: 1px solid var(--pp-line-mid);
  border-radius: 50%;
  flex: none;
}
.pp-card__toggle::before,
.pp-card__toggle::after{
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--aqua-glow);
}
.pp-card__toggle::before{
  width: 11px;
  height: 1.5px;
  transform: translate(-50%, -50%);
}
.pp-card__toggle::after{
  width: 1.5px;
  height: 11px;
  transform: translate(-50%, -50%);
  transition: transform 0.26s ease, opacity 0.26s ease;
}
.pp-card[open] .pp-card__toggle::after{
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.pp-card__panel{
  padding: 0 clamp(20px, 3vw, 28px) clamp(22px, 3vw, 30px);
  border-top: 1px solid var(--pp-line);
  padding-top: 20px;
}

.pp-steps{
  list-style: none;
  counter-reset: pp-step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.pp-steps li{
  position: relative;
  padding-left: 38px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist-white);
}
.pp-steps li::before{
  counter-increment: pp-step;
  content: counter(pp-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border: 1px solid var(--pp-line-mid);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--pp-accent);
  background: rgba(10, 27, 51, 0.7);
}

/* ---------- 图片位 ---------- */
.pp-shot{
  position: relative;
  overflow: hidden;
  margin: 22px 0 0;
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-r-md);
  background: #0B2038;
}
.pp-shot::after{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(158deg, rgba(22, 224, 210, 0.14), transparent 58%);
  pointer-events: none;
}
.pp-shot img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.pp-shot--tablet{ aspect-ratio: 4 / 3; }
.pp-shot--phone{
  aspect-ratio: 2 / 3;
  max-width: 224px;
  margin-inline: auto;
}
.pp-shot--desktop{ aspect-ratio: 14 / 9; }
.pp-shot--timeline{
  aspect-ratio: 2 / 1;
  margin-top: clamp(26px, 4vw, 44px);
}
.pp-shot--review{ aspect-ratio: 3 / 2; }

/* ---------- 订阅与提醒 ---------- */
.page-products .pp-remind{
  padding: clamp(44px, 6.5vw, 88px) 0;
  border-top: 1px solid var(--pp-line);
}
.pp-remind__grid{
  display: grid;
  gap: clamp(26px, 3.6vw, 46px);
}
.pp-tiers{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.pp-tier{
  padding: 22px 24px 24px;
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-r-md) var(--pp-r-lg) var(--pp-r-lg) var(--pp-r-lg);
  background: linear-gradient(140deg, rgba(18, 51, 90, 0.86) 0%, rgba(10, 27, 51, 0.92) 100%);
}
.pp-tier__badge{
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--fluoro-cyan);
  color: var(--abyss);
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 700;
}
.pp-tier:nth-child(2) .pp-tier__badge{
  background: var(--coral);
  color: var(--abyss);
}
.pp-tier__title{
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: 17.5px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--mist-white);
}
.pp-tier p{
  margin: 10px 0 0;
  color: var(--gray-blue);
  font-size: 14.5px;
  line-height: 1.82;
}
.pp-remind__foot{
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--coral);
  color: var(--mist-white);
  font-size: 14.5px;
  line-height: 1.8;
  max-width: 46em;
}

@media (min-width: 900px){
  .pp-remind__grid{
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

/* ---------- 战报与回看 ---------- */
.page-products .pp-review{
  padding: clamp(44px, 6.5vw, 88px) 0;
  border-top: 1px solid var(--pp-line);
}
.pp-review__grid{
  display: grid;
  gap: clamp(26px, 3.6vw, 46px);
}
.pp-rounds{
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}
.pp-rounds li{
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  padding: 15px 4px;
  border-top: 1px solid var(--pp-line);
}
.pp-rounds li:last-child{
  border-bottom: 1px solid var(--pp-line);
}
.pp-rounds b{
  flex: none;
  min-width: 84px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--signal-gold);
}
.pp-rounds span{
  color: var(--gray-blue);
  font-size: 14px;
  line-height: 1.7;
}

@media (min-width: 900px){
  .pp-review__grid{
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .pp-review__grid .pp-shot--review{
    margin-top: 0;
  }
}

/* ---------- 对照表 ---------- */
.page-products .pp-compare{
  padding: clamp(44px, 6.5vw, 88px) 0;
  border-top: 1px solid var(--pp-line);
}
.pp-table-wrap{
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-r-md);
  background: linear-gradient(150deg, rgba(18, 51, 90, 0.72) 0%, rgba(10, 27, 51, 0.92) 100%);
}
.pp-table{
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14.5px;
}
.pp-table th,
.pp-table td{
  padding: 17px 20px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--pp-line);
  line-height: 1.7;
}
.pp-table thead th{
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--aqua-glow);
  white-space: nowrap;
}
.pp-table tbody th{
  font-weight: 800;
  color: var(--mist-white);
  white-space: nowrap;
}
.pp-table tbody td{
  color: var(--gray-blue);
}
.pp-table tbody tr:last-child th,
.pp-table tbody tr:last-child td{
  border-bottom: none;
}
.pp-table tbody tr:hover{
  background: rgba(22, 224, 210, 0.05);
}
.pp-table__num{
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  color: var(--signal-gold) !important;
  white-space: nowrap;
}

/* ---------- 下一步 ---------- */
.page-products .pp-next{
  padding: clamp(44px, 6.5vw, 88px) 0 clamp(56px, 8vw, 104px);
  border-top: 1px solid var(--pp-line);
}
.pp-next__list{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.pp-next__list li a{
  display: block;
  padding: 20px 22px;
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-r-md);
  background: rgba(18, 51, 90, 0.42);
  color: var(--mist-white);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  text-decoration: none;
  transition: border-color 0.25s ease, background-color 0.25s ease;
}
.pp-next__list li a span{
  display: block;
  margin-top: 9px;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--gray-blue);
}
.pp-next__list li a:hover{
  border-color: var(--pp-line-strong);
  background: rgba(22, 224, 210, 0.08);
}
.pp-next__list li a:hover span{
  color: var(--aqua-glow);
}

@media (min-width: 760px){
  .pp-next__list{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px){
  .pp-stack{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 24px;
  }
  .pp-stack > .pp-card:nth-child(1){ margin-top: 0; }
  .pp-stack > .pp-card:nth-child(2){ margin-top: 26px; }
  .pp-stack > .pp-card:nth-child(3){ margin-top: 52px; }
}

@media (prefers-reduced-motion: reduce){
  .pp-card,
  .pp-card::after,
  .pp-card__toggle::after,
  .pp-next__list li a{
    transition: none;
  }
}
</main>