.page-products{
  --pp-line: rgba(143,166,192,.28);
  --pp-rule: rgba(11,31,58,.1);
  --pp-body: #2A3B52;
  background: var(--paper);
  color: var(--ink-900);
  padding-bottom: clamp(36px,6vw,72px);
}

.page-products a:focus-visible,
.page-products summary:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-products .num,
.page-products .stat-num,
.page-products .svc-node__num,
.page-products .tree__num,
.page-products .filter-row__k,
.page-products .fmt-card__k,
.page-products .biz-step__num,
.page-products .rhythm-axis__time,
.page-products .media-frame__caption{
  font-family: var(--font-mono);
}

/* ---------- 首屏封面 ---------- */
.page-products .hero-coord{
  position: relative;
  margin-top: clamp(14px,2.4vw,26px);
  padding: clamp(26px,4.6vw,54px) clamp(20px,4vw,46px) clamp(22px,3.4vw,38px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(120% 96% at 92% -12%, rgba(255,106,42,.24), rgba(255,106,42,0) 62%),
    linear-gradient(155deg, var(--ink-700) 0%, var(--ink-800) 48%, var(--ink-900) 100%);
  color: var(--paper);
  overflow: hidden;
  isolation: isolate;
}
.page-products .hero-coord::before{
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(143,166,192,.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143,166,192,.16) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(92% 82% at 78% 6%, #000 0%, transparent 76%);
  mask-image: radial-gradient(92% 82% at 78% 6%, #000 0%, transparent 76%);
  pointer-events: none;
}
.page-products .hero-coord > *{
  position: relative;
  z-index: 1;
}
.page-products .hero-coord__title{
  margin: 14px 0 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(30px,5.4vw,54px);
  line-height: 1.08;
  letter-spacing: -.015em;
  color: var(--white);
  max-width: 16em;
}
.page-products .hero-coord__lead{
  margin: 18px 0 0;
  max-width: 48em;
  font-size: clamp(15px,1.6vw,17px);
  line-height: 1.8;
  color: rgba(245,240,230,.84);
}
.page-products .hero-coord__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px,3vw,28px);
}
.page-products .hero-index{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(22px,3.2vw,32px);
  padding-top: clamp(16px,2.4vw,22px);
  border-top: 1px dashed var(--pp-line);
}
.page-products .hero-index a{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 11px;
  border-radius: var(--pill);
  border: 1px solid rgba(143,166,192,.32);
  background: rgba(255,255,255,.04);
  color: rgba(245,240,230,.9);
  font-size: 13px;
  text-decoration: none;
  transition: border-color .22s var(--ease-out), background .22s var(--ease-out), color .22s var(--ease-out);
}
.page-products .hero-index a:hover,
.page-products .hero-index a:focus-visible{
  border-color: var(--orange);
  background: rgba(255,106,42,.16);
  color: var(--white);
}
.page-products .hero-index .num{
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--orange);
}
.page-products .stat-strip{
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 1px;
  margin: clamp(22px,3.2vw,32px) 0 0;
  background: rgba(143,166,192,.22);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.page-products .stat-strip > div{
  min-width: 0;
  padding: 14px 16px;
  background: rgba(7,20,38,.74);
}
.page-products .stat-strip dt{
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}
.page-products .stat-strip dd{
  margin: 6px 0 0;
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.page-products .stat-num{
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(22px,3.2vw,30px);
  line-height: 1.1;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}
.page-products .stat-unit{
  font-size: 12px;
  color: rgba(245,240,230,.68);
}

/* ---------- 服务路径 + 正文 ---------- */
.page-products .svc-wrap{
  display: grid;
  gap: clamp(22px,3vw,36px);
  margin-top: clamp(30px,5vw,56px);
}
.page-products .svc-stages{
  min-width: 0;
}
.page-products .svc-rail{
  min-width: 0;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid rgba(11,31,58,.08);
  box-shadow: var(--shadow-2);
}
.page-products .svc-rail__title{
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
}
.page-products .svc-rail__list{
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-products .svc-rail__list li{
  flex: 0 0 auto;
}
.page-products .svc-node{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border-radius: var(--pill);
  border: 1px solid rgba(11,31,58,.14);
  background: var(--gray);
  color: var(--ink-800);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background .22s var(--ease-out), border-color .22s var(--ease-out), color .22s var(--ease-out);
}
.page-products .svc-node__num{
  font-size: 11px;
  color: var(--mist);
  letter-spacing: .06em;
}
.page-products .svc-node[data-state="current"]{
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
  box-shadow: 0 12px 24px -18px rgba(255,106,42,.95);
}
.page-products .svc-node[data-state="current"] .svc-node__num{
  color: rgba(7,20,38,.68);
}
.page-products .svc-node:hover,
.page-products .svc-node:focus-visible{
  border-color: var(--orange);
  background: rgba(255,106,42,.14);
  color: var(--ink-900);
}
.page-products .svc-rail__note{
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
}
.page-products .svc-rail__note a{
  color: var(--ink-700);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
}

/* ---------- 章节 ---------- */
.page-products .stage{
  padding-top: clamp(26px,4vw,42px);
}
.page-products .stage:first-child{
  padding-top: 0;
}
.page-products .stage + .stage{
  margin-top: clamp(28px,4.6vw,52px);
  border-top: 1px solid var(--pp-rule);
}
.page-products .stage__head{
  max-width: 32em;
}
.page-products .stage__head h2{
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(23px,3.4vw,36px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--ink-800);
}
.page-products .stage__split{
  display: grid;
  gap: clamp(18px,3vw,30px);
  margin-top: clamp(14px,2.4vw,22px);
}
.page-products .stage__split > *{
  min-width: 0;
}
.page-products .stage__note{
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: #4A5C74;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
}
.page-products .stage__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.page-products .prose p{
  color: var(--pp-body);
  line-height: 1.85;
}
.page-products .prose{
  margin-top: clamp(14px,2.4vw,20px);
}

/* ---------- 要点列表 ---------- */
.page-products .point-list{
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}
.page-products .point-list li{
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--pp-body);
}
.page-products .point-list li::before{
  content: "";
  position: absolute;
  left: 2px;
  top: .58em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--orange);
  transform: rotate(45deg);
}
.page-products .point-list strong{
  color: var(--ink-800);
}

/* ---------- 步骤链 ---------- */
.page-products .chain{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 18px 0 0;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: var(--gray);
}
.page-products .chain li{
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-800);
  padding: 6px 12px;
  border-radius: var(--pill);
  background: var(--white);
  border: 1px solid rgba(11,31,58,.08);
}
.page-products .chain li:not(:last-child)::after{
  content: "→";
  margin-left: 10px;
  color: var(--orange);
  font-weight: 700;
}

/* ---------- 媒体框 ---------- */
.page-products .media-frame{
  margin: clamp(16px,2.6vw,24px) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(11,31,58,.12);
  background: linear-gradient(150deg, var(--ink-700), var(--ink-900));
}
.page-products .media-frame img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-products .media-frame__caption{
  display: block;
  padding: 9px 14px;
  font-size: 11px;
  letter-spacing: .06em;
  color: rgba(245,240,230,.72);
  background: rgba(7,20,38,.6);
  border-top: 1px solid rgba(143,166,192,.18);
}

/* ---------- 目录树 ---------- */
.page-products .tree{
  display: grid;
  gap: 8px;
  margin-top: 18px;
}
.page-products .tree__item{
  border-radius: var(--radius-md);
  border: 1px solid var(--pp-rule);
  background: var(--white);
  overflow: hidden;
  transition: border-color .22s var(--ease-out), box-shadow .22s var(--ease-out);
}
.page-products .tree__item[open]{
  border-color: rgba(255,106,42,.42);
  box-shadow: var(--shadow-2);
}
.page-products .tree__sum{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-800);
}
.page-products .tree__sum::-webkit-details-marker{
  display: none;
}
.page-products .tree__sum::after{
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--orange);
}
.page-products .tree__item[open] .tree__sum::after{
  content: "–";
}
.page-products .tree__sum:hover{
  background: rgba(255,106,42,.06);
}
.page-products .tree__num{
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--orange);
}
.page-products .tree__body{
  list-style: none;
  margin: 0;
  padding: 6px 14px 14px;
  display: grid;
  gap: 6px;
  border-top: 1px dashed rgba(11,31,58,.12);
}
.page-products .tree__body li{
  padding: 8px 11px;
  border-radius: var(--radius-sm);
  background: rgba(227,231,236,.62);
  font-size: 14px;
  color: var(--pp-body);
}

/* ---------- 筛选面板 ---------- */
.page-products .filter-board{
  display: grid;
  gap: 12px;
  margin-top: 18px;
  padding: clamp(14px,2.6vw,22px);
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid var(--pp-rule);
  box-shadow: var(--shadow-2);
}
.page-products .filter-row{
  display: grid;
  gap: 8px;
}
.page-products .filter-row__k{
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist);
}
.page-products .filter-pills{
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}

/* ---------- 导出格式 ---------- */
.page-products .fmt-cards{
  display: grid;
  gap: 12px;
  margin-top: 18px;
}
.page-products .fmt-card{
  padding: 18px;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--white), rgba(227,231,236,.7));
  border: 1px solid var(--pp-rule);
  border-top: 3px solid var(--orange);
}
.page-products .fmt-card--pdf{
  border-top-color: var(--ink-700);
}
.page-products .fmt-card__k{
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}
.page-products .fmt-card--pdf .fmt-card__k{
  color: var(--ink-700);
}
.page-products .fmt-card h3{
  margin: 8px 0 6px;
  font-size: 17px;
  color: var(--ink-800);
}
.page-products .fmt-card p{
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--pp-body);
}

/* ---------- 企业对接三步 ---------- */
.page-products .biz-steps{
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .biz-step{
  position: relative;
  padding: 18px 18px 18px 58px;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1px solid var(--pp-rule);
}
.page-products .biz-step__num{
  position: absolute;
  left: 16px;
  top: 18px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink-800);
  color: var(--gold);
  font-size: 12px;
}
.page-products .biz-step h3{
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--ink-800);
}
.page-products .biz-step p{
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--pp-body);
}

/* ---------- 更新节奏 ---------- */
.page-products .rhythm-band{
  position: relative;
  margin-top: clamp(34px,5.6vw,64px);
  padding: clamp(30px,5vw,58px) 0;
  background:
    radial-gradient(90% 80% at 6% 0%, rgba(61,224,208,.14), rgba(61,224,208,0) 58%),
    linear-gradient(150deg, var(--ink-800), var(--ink-900) 72%);
  color: var(--paper);
  overflow: hidden;
}
.page-products .rhythm-band__head{
  max-width: 42em;
}
.page-products .rhythm-band__head h2{
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(23px,3.4vw,36px);
  line-height: 1.16;
  color: var(--white);
}
.page-products .rhythm-band__lead{
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(245,240,230,.8);
}
.page-products .rhythm-axis{
  list-style: none;
  margin: clamp(20px,3vw,30px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-products .rhythm-axis li{
  position: relative;
  padding: 0 0 24px 24px;
  border-left: 2px dashed rgba(143,166,192,.34);
}
.page-products .rhythm-axis li:last-child{
  padding-bottom: 0;
  border-left-color: transparent;
}
.page-products .rhythm-axis li::before{
  content: "";
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--orange);
}
.page-products .rhythm-axis li[data-state="current"]::before{
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(61,224,208,.18);
}
.page-products .rhythm-axis__time{
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}
.page-products .rhythm-axis h3{
  margin: 5px 0 5px;
  font-size: 16px;
  color: var(--white);
}
.page-products .rhythm-axis p{
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245,240,230,.76);
}

/* ---------- 结尾入口 ---------- */
.page-products .closing{
  margin-top: clamp(34px,5.4vw,62px);
  padding: clamp(24px,4vw,44px);
  border-radius: var(--radius-xl);
  background: linear-gradient(140deg, var(--ink-700), var(--ink-900));
  color: var(--paper);
  border: 1px solid rgba(143,166,192,.2);
}
.page-products .closing h2{
  margin: 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(22px,3.2vw,32px);
  line-height: 1.2;
  color: var(--white);
}
.page-products .closing p{
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245,240,230,.8);
}
.page-products .closing-links{
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}
.page-products .closing-links a{
  padding: 9px 16px;
  border-radius: var(--pill);
  border: 1px solid rgba(143,166,192,.38);
  color: var(--paper);
  font-size: 13px;
  text-decoration: none;
  transition: border-color .22s var(--ease-out), background .22s var(--ease-out), color .22s var(--ease-out);
}
.page-products .closing-links a:hover,
.page-products .closing-links a:focus-visible{
  border-color: var(--orange);
  background: var(--orange);
  color: var(--ink-900);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px){
  .page-products .fmt-cards{
    grid-template-columns: repeat(2,minmax(0,1fr));
  }
  .page-products .biz-steps{
    grid-template-columns: repeat(2,minmax(0,1fr));
  }
}

@media (min-width: 720px){
  .page-products .stat-strip{
    grid-template-columns: repeat(4,minmax(0,1fr));
  }
}

@media (min-width: 860px){
  .page-products .stage__split{
    grid-template-columns: minmax(0,1.05fr) minmax(0,.95fr);
    align-items: start;
  }
  .page-products .biz-steps{
    grid-template-columns: repeat(3,minmax(0,1fr));
  }
  .page-products .filter-row{
    grid-template-columns: 96px minmax(0,1fr);
    align-items: center;
  }
  .page-products .rhythm-axis{
    grid-template-columns: repeat(2,minmax(0,1fr));
    gap: 22px 30px;
    border-top: 1px dashed rgba(143,166,192,.3);
    padding-top: 24px;
  }
  .page-products .rhythm-axis li,
  .page-products .rhythm-axis li:last-child{
    padding: 0 0 0 0;
    border-left: 0;
  }
  .page-products .rhythm-axis li::before{
    left: 0;
    top: -31px;
  }
}

@media (min-width: 900px){
  .page-products .svc-wrap{
    grid-template-columns: 210px minmax(0,1fr);
    align-items: start;
  }
  .page-products .svc-rail{
    position: sticky;
    top: calc(var(--header-h) + 14px);
  }
  .page-products .svc-rail__list{
    display: block;
    overflow: visible;
    margin-top: 14px;
    padding: 0;
  }
  .page-products .svc-rail__list li + li{
    margin-top: 7px;
  }
  .page-products .svc-node{
    width: 100%;
    white-space: normal;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    line-height: 1.4;
  }
  .page-products .tree{
    grid-template-columns: repeat(2,minmax(0,1fr));
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-products .hero-index a,
  .page-products .svc-node,
  .page-products .tree__item,
  .page-products .closing-links a{
    transition: none;
  }
}
<<<PAGE_CSS END>>>
</main>