.page-home{
  background:
    radial-gradient(140% 70% at 78% -6%, rgba(141,107,255,.18), transparent 62%),
    var(--ink);
  color: var(--paper-white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-home .hero{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(26px,5vw,52px) 0 clamp(42px,7vw,88px);
  border-bottom: 1px solid var(--line);
}
.page-home .hero::before{
  content: "";
  position: absolute;
  inset: -25% -15% auto -15%;
  height: 148%;
  background:
    radial-gradient(44% 40% at 74% 26%, rgba(54,241,227,.18), transparent 68%),
    radial-gradient(52% 48% at 90% 4%, rgba(141,107,255,.32), transparent 70%),
    radial-gradient(36% 36% at 6% 34%, rgba(255,122,89,.12), transparent 72%);
  z-index: 0;
  pointer-events: none;
}
.page-home .hero::after{
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(234,247,255,.06) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: .55;
  z-index: 0;
  pointer-events: none;
}
.page-home .hero__beam{
  position: absolute;
  top: 4%;
  right: -14%;
  width: 64%;
  height: 88%;
  background: linear-gradient(152deg, rgba(54,241,227,.16), rgba(141,107,255,.07) 55%, transparent 80%);
  clip-path: polygon(24% 0, 100% 10%, 84% 100%, 0 76%);
  z-index: 0;
  pointer-events: none;
}
.page-home .hero__inner{
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px,5vw,54px);
  align-items: center;
}
.page-home .hero__crumb{
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--mist);
}
.page-home .hero__crumb span{
  color: var(--cyan);
  margin-right: 8px;
}
.page-home .hero__title{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px,8.6vw,86px);
  line-height: .98;
  letter-spacing: -.03em;
  color: var(--paper-white);
}
.page-home .hero__accent{
  background: linear-gradient(96deg, var(--cyan), var(--violet) 78%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding-right: .06em;
}
.page-home .hero__lead{
  margin: clamp(18px,3vw,26px) 0 0;
  max-width: 44ch;
  color: var(--text-soft);
}
.page-home .hero__actions{
  margin-top: clamp(22px,3.4vw,30px);
}
.page-home .hero__note{
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--mist);
}
.page-home .hero__stage{
  position: relative;
  padding-bottom: 26px;
}
.page-home .hero__shot{
  margin: 0;
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden;
  border: 1px solid rgba(54,241,227,.22);
  box-shadow: 0 40px 90px -50px rgba(54,241,227,.5), 0 20px 60px -40px rgba(0,0,0,.9);
}
.page-home .hero__img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .hero__badge{
  position: absolute;
  left: clamp(8px,4vw,22px);
  bottom: 0;
  width: min(238px,68%);
  padding: 16px 16px 15px;
  border-radius: 14px;
  border: 1px solid rgba(54,241,227,.38);
  background: linear-gradient(158deg, rgba(11,27,46,.97), rgba(6,17,31,.94));
  box-shadow: 0 26px 60px -30px rgba(54,241,227,.6), inset 0 1px 0 rgba(234,247,255,.1);
  z-index: 2;
}
.page-home .hero__chip{
  display: block;
  width: 30px;
  height: 21px;
  margin-bottom: 12px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--gold), #8a6c3c);
  box-shadow: inset 0 0 0 1px rgba(6,17,31,.5);
}
.page-home .hero__badge-title{
  margin: 0 0 6px;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--paper-white);
}
.page-home .hero__badge-code{
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.page-home .hero__badge-text{
  margin: 0;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--text-mute);
}
.page-home .hero__vertical{
  display: none;
}

/* ---------- 导读索引 ---------- */
.page-home .jump{
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
}
.page-home .jump__inner{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding: 16px 0;
}
.page-home .jump__label{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--coral);
}
.page-home .jump__list{
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-home .jump__link{
  display: inline-block;
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.page-home .jump__num{
  margin-right: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}
.page-home .jump__link:hover,
.page-home .jump__link:focus-visible{
  color: var(--paper-white);
  border-bottom-color: var(--cyan);
}

/* ---------- 通用章节 ---------- */
.page-home .chapter{
  position: relative;
  padding: clamp(50px,9vw,104px) 0;
}
.page-home .chapter + .chapter{
  border-top: 1px solid var(--line);
}
.page-home .chapter__head .h-sec{
  margin: 10px 0 0;
}
.page-home .chapter__head .lead{
  margin: 16px 0 0;
  max-width: 48ch;
  color: var(--text-soft);
}
.page-home .chapter__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px,4vw,40px);
}
.page-home .chapter__body .prose{
  margin: 0;
  color: var(--text-soft);
}
.page-home .chapter__fig{
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 30px 70px -55px rgba(0,0,0,.95);
}
.page-home .chapter__fig img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .points{
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.page-home .points li{
  position: relative;
  padding-left: 24px;
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--text-mute);
}
.page-home .points li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 12px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 账户中心三栏 ---------- */
.page-home .trio{
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(28px,4vw,44px);
}
.page-home .trio__card{
  position: relative;
  padding: 26px 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(11,27,46,.95), rgba(6,17,31,.9));
  box-shadow: 0 22px 50px -40px rgba(0,0,0,.95);
}
.page-home .trio__card--a{ border-top: 2px solid var(--cyan); }
.page-home .trio__card--b{ border-top: 2px solid var(--coral); }
.page-home .trio__card--c{ border-top: 2px solid var(--violet); }
.page-home .trio__num{
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--mist);
}
.page-home .trio__title{
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper-white);
}
.page-home .trio__text{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-mute);
}
.page-home .account__split{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px,4vw,36px);
  margin-top: clamp(32px,5vw,54px);
}
.page-home .account__fig{
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}
.page-home .account__fig img{
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .account__folds{
  min-width: 0;
}
.page-home .fold{
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(11,27,46,.62);
  overflow: hidden;
}
.page-home .fold + .fold{
  margin-top: 10px;
}
.page-home .fold summary{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--paper-white);
  cursor: pointer;
  list-style: none;
}
.page-home .fold summary::-webkit-details-marker{ display: none; }
.page-home .fold summary::after{
  content: "+";
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
}
.page-home .fold[open] summary::after{ content: "–"; }
.page-home .fold[open] summary{
  border-bottom: 1px solid var(--line);
}
.page-home .fold__body{
  padding: 14px 18px 18px;
  font-size: var(--step-0);
  line-height: 1.78;
  color: var(--text-soft);
}

/* ---------- 电脑端与数据 ---------- */
.page-home .desk{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px,4vw,50px);
}
.page-home .desk__copy .prose{
  margin: 18px 0 0;
  color: var(--text-soft);
}
.page-home .desk__link{
  display: inline-block;
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(54,241,227,.4);
  padding-bottom: 3px;
}
.page-home .desk__link:hover,
.page-home .desk__link:focus-visible{
  color: var(--paper-white);
  border-bottom-color: var(--paper-white);
}
.page-home .stats{
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-home .stats__item{
  display: grid;
  grid-template-columns: minmax(96px,auto) 1fr;
  gap: 6px 18px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.page-home .stats__val{
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.page-home .stats__num{
  font-family: var(--font-mono);
  font-size: clamp(26px,3.6vw,36px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
}
.page-home .stats__unit{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--coral);
}
.page-home .stats__label{
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-mute);
}

/* ---------- 订阅入口 ---------- */
.page-home .sub{
  position: relative;
  overflow: hidden;
  padding: clamp(52px,9vw,100px) 0;
  border-top: 1px solid var(--line);
}
.page-home .sub__bg{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
  z-index: 0;
}
.page-home .sub::after{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6,17,31,.88), rgba(6,17,31,.97));
  z-index: 1;
}
.page-home .sub__inner{
  position: relative;
  z-index: 2;
}
.page-home .sub__head .h-sec{
  margin: 10px 0 0;
}
.page-home .sub__head .lead{
  margin: 16px 0 0;
  max-width: 48ch;
  color: var(--text-soft);
}
.page-home .steps{
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: clamp(28px,4vw,42px) 0 0;
  padding: 0;
  list-style: none;
}
.page-home .steps__item{
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(11,27,46,.74);
}
.page-home .steps__num{
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--coral);
}
.page-home .steps__title{
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--paper-white);
}
.page-home .steps__text{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--text-mute);
}
.page-home .sub__cta{
  margin-top: clamp(26px,4vw,38px);
}

/* ---------- 收尾索引 ---------- */
.page-home .more{
  padding: clamp(34px,5vw,56px) 0 clamp(44px,7vw,76px);
}
.page-home .more__inner{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 28px;
  padding-top: clamp(24px,4vw,36px);
  border-top: 1px solid var(--line);
}
.page-home .more__label{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--mist);
}
.page-home .more__list{
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-home .more__link{
  font-size: 15px;
  color: var(--paper-white);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.page-home .more__link:hover,
.page-home .more__link:focus-visible{
  color: var(--cyan);
  border-bottom-color: var(--line-strong);
}
.page-home .more__top{
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--mist);
  text-decoration: none;
}
.page-home .more__top:hover,
.page-home .more__top:focus-visible{
  color: var(--cyan);
}

/* ---------- 断点 ---------- */
@media (min-width: 820px){
  .page-home .hero__inner{
    grid-template-columns: 1.05fr .95fr;
  }
  .page-home .hero__shot{
    transform: rotate(-1.2deg);
  }
  .page-home .chapter__grid{
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "head fig"
      "body fig";
    align-items: start;
  }
  .page-home .chapter__head{ grid-area: head; }
  .page-home .chapter__body{ grid-area: body; }
  .page-home .chapter__fig{ grid-area: fig; align-self: center; }
  .page-home .trio{
    grid-template-columns: repeat(3,1fr);
    gap: 18px;
    align-items: start;
  }
  .page-home .trio__card--b{ margin-top: 34px; }
  .page-home .trio__card--c{ margin-top: 14px; }
  .page-home .steps{
    grid-template-columns: repeat(2,1fr);
    gap: 18px;
  }
}

@media (min-width: 900px){
  .page-home .hero__vertical{
    display: block;
    position: absolute;
    top: 4px;
    right: -14px;
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: .34em;
    color: rgba(138,163,184,.75);
    z-index: 3;
  }
  .page-home .account__split{
    grid-template-columns: .86fr 1.14fr;
    align-items: start;
  }
  .page-home .desk{
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
  }
}

@media (min-width: 1080px){
  .page-home .steps{
    grid-template-columns: repeat(4,1fr);
  }
  .page-home .hero__stage{
    padding-bottom: 34px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-home .jump__link,
  .page-home .more__link,
  .page-home .desk__link{
    transition: none;
  }
  .page-home .hero__shot{
    transform: none;
  }
}