/* ===== 产品线与下载 · 页面专属样式（作用域：.page-products） ===== */
.page-products {
  --pp-band: clamp(52px, 7vw, 96px);
  --pp-radius: 8px;
  --pp-card: rgba(13, 43, 63, .55);
  --pp-card-solid: #0A2130;
  --pp-shadow-soft: 0 20px 48px -30px rgba(0, 0, 0, .95);
}

/* ---------- 面包屑 ---------- */
.page-products .pp-crumb {
  padding-top: calc(var(--header-h) + 16px);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  padding-bottom: clamp(36px, 6vw, 68px);
  background:
    radial-gradient(115% 78% at 90% 2%, rgba(35, 224, 196, .16), transparent 62%),
    radial-gradient(80% 60% at 4% 96%, rgba(255, 138, 61, .10), transparent 60%),
    linear-gradient(180deg, var(--ink) 0%, var(--night) 58%, var(--night-2) 100%);
  overflow: hidden;
}

.page-products .pp-hero__inner {
  display: grid;
  gap: 34px;
  align-items: end;
  padding-top: clamp(18px, 3vw, 34px);
}

.page-products .pp-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(2.05rem, 6.4vw, 3.75rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-products .pp-hero__lead {
  max-width: 58ch;
  margin: 0;
  font-size: clamp(1rem, 1.9vw, 1.1rem);
  line-height: 1.85;
  color: var(--text);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .pp-hero__visual {
  position: relative;
  clip-path: polygon(0 7%, 100% 0, 100% 93%, 0 100%);
  box-shadow: var(--pp-shadow-soft);
}

.page-products .pp-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .pp-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(158deg, rgba(6, 24, 38, 0) 42%, rgba(3, 9, 14, .82) 100%);
  pointer-events: none;
}

/* 首屏数据条 */
.page-products .pp-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 22px;
  margin-top: clamp(30px, 5vw, 54px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-products .pp-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-products .pp-stat__value {
  font-size: clamp(1.5rem, 3.4vw, 2.05rem);
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-products .pp-stat__label {
  font-size: .82rem;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 通用区块头部（页面内覆盖） ---------- */
.page-products .section__head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-products .section__title {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.5vw, 2.3rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-products .section__aside {
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 功能模块 ---------- */
.page-products .pp-modules {
  background: linear-gradient(180deg, var(--night) 0%, var(--night) 100%);
}

.page-products .pp-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pp-mod {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 22px 22px;
  background: var(--pp-card-solid);
  border-top: 2px solid var(--cyan);
  border-radius: 0 0 var(--pp-radius) var(--pp-radius);
  box-shadow: var(--pp-shadow-soft);
}

.page-products .pp-mod--glass {
  background: var(--glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top-color: var(--orange);
}

.page-products .pp-mod__num {
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-products .pp-mod__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.16rem;
  line-height: 1.4;
  color: var(--white);
}

.page-products .pp-mod__text {
  margin: 0;
  font-size: .93rem;
  line-height: 1.82;
  color: var(--text);
}

.page-products .pp-mod__meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--slate);
}

/* ---------- 下载路径 ---------- */
.page-products .pp-flow-band {
  background: var(--night-2);
}

.page-products .pp-flow {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pp-lane {
  padding: 22px 20px;
  border-radius: var(--pp-radius);
  border: 1px solid var(--line-soft);
  background: rgba(3, 9, 14, .42);
}

.page-products .pp-lane--after {
  border-color: rgba(35, 224, 196, .45);
  background: rgba(15, 143, 126, .12);
}

.page-products .pp-lane__label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: .78rem;
  color: var(--slate);
}

.page-products .pp-steps {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-products .pp-step {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  position: relative;
}

.page-products .pp-step__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--r-pill);
  border: 1px solid var(--cyan);
  font-size: .78rem;
  color: var(--cyan);
  background: rgba(35, 224, 196, .08);
}

.page-products .pp-step__body {
  padding-top: 4px;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--text);
}

.page-products .pp-step--cut .pp-step__idx {
  border-color: rgba(232, 65, 60, .6);
  color: var(--red);
  background: rgba(232, 65, 60, .08);
}

.page-products .pp-step--cut .pp-step__body {
  color: var(--slate);
  text-decoration: line-through;
  text-decoration-color: rgba(232, 65, 60, .55);
}

.page-products .pp-flow__arrow {
  justify-self: center;
  align-self: center;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: var(--r-pill);
  background: var(--cyan);
  color: var(--night);
  font-size: .95rem;
  font-weight: 600;
}

.page-products .pp-flow__media {
  margin: clamp(28px, 4vw, 42px 0 0);
  margin-left: 0;
  margin-right: 0;
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .pp-flow__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 加载性能对比 ---------- */
.page-products .pp-perf {
  background: var(--night);
}

.page-products .pp-compare {
  display: grid;
  gap: 30px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pp-compare__bars {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px 20px;
  border-radius: var(--pp-radius);
  border: 1px solid var(--line-soft);
  background: var(--pp-card-solid);
}

.page-products .pp-bar-row__label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 10px;
  font-size: .86rem;
  color: var(--slate);
}

.page-products .pp-bar-row__label--hi {
  color: var(--white);
}

.page-products .pp-bar-row__label .mono {
  font-size: 1.02rem;
  color: var(--slate);
}

.page-products .pp-bar-row__label--hi .mono {
  color: var(--cyan);
}

.page-products .pp-bar {
  height: 12px;
  border-radius: var(--r-pill);
  background: rgba(62, 92, 112, .32);
  overflow: hidden;
}

.page-products .pp-bar__fill {
  display: block;
  width: var(--w);
  height: 100%;
  border-radius: inherit;
}

.page-products .pp-bar__fill--old {
  background: linear-gradient(90deg, #3E5C70, #9BB0BE);
}

.page-products .pp-bar__fill--new {
  background: linear-gradient(90deg, var(--cyan-dim), var(--cyan));
  box-shadow: 0 0 22px -4px rgba(35, 224, 196, .7);
}

.page-products .pp-compare__caption {
  margin: 0;
  font-size: .74rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pp-compare__notes {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pp-note {
  padding: 22px 20px;
  border-radius: var(--pp-radius);
  background: var(--glass);
  border: 1px solid var(--line-soft);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.page-products .pp-note__idx {
  display: inline-block;
  margin-bottom: 10px;
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-products .pp-note__title {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.04rem;
  color: var(--white);
}

.page-products .pp-note__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.82;
  color: var(--text);
}

.page-products .pp-perf__media {
  margin: clamp(30px, 4vw, 48px) 0 0;
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .pp-perf__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 弱网三阶段 ---------- */
.page-products .pp-stages-band {
  background: linear-gradient(180deg, var(--night-2) 0%, var(--night) 100%);
}

.page-products .pp-stages {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pp-stages__main {
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pp-chart {
  padding: 18px 16px;
  border-radius: var(--pp-radius);
  background: var(--pp-card-solid);
  border: 1px solid var(--line-soft);
}

.page-products .pp-chart svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-phases {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-phase {
  padding: 20px 18px;
  border-radius: var(--pp-radius);
  border-left: 3px solid var(--steel);
  background: rgba(3, 9, 14, .4);
}

.page-products .pp-phase--done {
  border-left-color: var(--cyan);
  background: rgba(15, 143, 126, .13);
}

.page-products .pp-phase__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-products .pp-phase__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.45;
  color: var(--white);
}

.page-products .pp-phase__text {
  margin: 0;
  font-size: .89rem;
  line-height: 1.8;
  color: var(--text);
}

.page-products .pp-stages__side .media {
  margin: 0;
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .pp-stages__side .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 设备适配 ---------- */
.page-products .pp-device {
  background: var(--night);
}

.page-products .pp-device-card {
  padding: 24px 20px;
  border-radius: var(--pp-radius);
  background: var(--pp-card-solid);
  border: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .pp-device-card__shape {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  height: 54px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pp-device-card__shape span {
  display: block;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, rgba(35, 224, 196, .85), rgba(15, 143, 126, .35));
}

.page-products .pp-device-card__shape--phone span:nth-child(1) { width: 14%; height: 100%; }
.page-products .pp-device-card__shape--phone span:nth-child(2) { width: 46%; height: 62%; background: linear-gradient(180deg, rgba(245,248,250,.75), rgba(155,176,190,.25)); }
.page-products .pp-device-card__shape--phone span:nth-child(3) { width: 24%; height: 40%; }

.page-products .pp-device-card__shape--pad span:nth-child(1) { width: 56%; height: 100%; }
.page-products .pp-device-card__shape--pad span:nth-child(2) { width: 34%; height: 68%; background: linear-gradient(180deg, rgba(255, 138, 61, .8), rgba(255, 138, 61, .2)); }

.page-products .pp-device-card__shape--desk { align-items: stretch; }
.page-products .pp-device-card__shape--desk span { height: 100%; }
.page-products .pp-device-card__shape--desk span:nth-child(1) { width: 10%; background: linear-gradient(180deg, rgba(35,224,196,.9), rgba(35,224,196,.2)); }
.page-products .pp-device-card__shape--desk span:nth-child(2) { width: 34%; height: 60%; }
.page-products .pp-device-card__shape--desk span:nth-child(3) { width: 26%; height: 84%; background: linear-gradient(180deg, rgba(245,248,250,.6), rgba(155,176,190,.2)); }
.page-products .pp-device-card__shape--desk span:nth-child(4) { width: 18%; height: 46%; background: linear-gradient(180deg, rgba(255,138,61,.75), rgba(255,138,61,.18)); }

.page-products .pp-device-card__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.06rem;
  color: var(--white);
}

.page-products .pp-device-card__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.82;
  color: var(--text);
}

.page-products .pp-device__note {
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 18px 20px;
  border-left: 3px solid var(--orange);
  background: rgba(255, 138, 61, .08);
  border-radius: 0 var(--pp-radius) var(--pp-radius) 0;
  font-size: .92rem;
  line-height: 1.82;
  color: var(--text);
}

/* ---------- 资料下载 ---------- */
.page-products .pp-downloads {
  background:
    radial-gradient(100% 70% at 4% 2%, rgba(255, 138, 61, .13), transparent 60%),
    linear-gradient(180deg, var(--night-2) 0%, var(--night) 100%);
}

.page-products .pp-files {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
  margin-top: 24px;
}

.page-products .pp-file {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
  padding: 22px 20px;
  border-radius: var(--pp-radius);
  background: var(--pp-card-solid);
  border: 1px solid var(--line-soft);
  box-shadow: var(--pp-shadow-soft);
  transition: border-color var(--ease), transform var(--ease);
}

.page-products .pp-file:hover {
  border-color: rgba(35, 224, 196, .5);
  transform: translateY(-2px);
}

.page-products .pp-file__icons {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.page-products .pp-ic {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  padding: 8px 10px 8px 20px;
  font-size: .72rem;
  letter-spacing: .1em;
  border-radius: var(--r-sm);
  background: rgba(62, 92, 112, .3);
  color: var(--white);
}

.page-products .pp-ic::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 50%;
  width: 8px;
  height: 11px;
  transform: translateY(-50%);
  border: 1px solid currentColor;
  border-radius: 1px;
  opacity: .8;
}

.page-products .pp-ic--pdf {
  background: rgba(232, 65, 60, .18);
  color: #FFB4B1;
}

.page-products .pp-ic--csv {
  background: rgba(35, 224, 196, .14);
  color: var(--cyan);
}

.page-products .pp-file__title {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--white);
}

.page-products .pp-file__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.82;
  color: var(--text);
}

.page-products .pp-file__specs {
  display: grid;
  gap: 7px;
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-soft);
}

.page-products .pp-file__specs > div {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-products .pp-file__specs dt {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-products .pp-file__specs dd {
  margin: 0;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pp-files__note {
  display: grid;
  gap: 12px;
  margin-top: 26px;
  padding: 22px 20px;
  border-radius: var(--pp-radius);
  border: 1px solid var(--line-soft);
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.page-products .pp-files__note p {
  margin: 0;
  font-size: .91rem;
  line-height: 1.85;
  color: var(--text);
}

.page-products .pp-files__note strong {
  color: var(--cyan);
  font-weight: 600;
}

.page-products .pp-files__media {
  margin: clamp(28px, 4vw, 44px) 0 0;
  border-radius: var(--pp-radius);
  overflow: hidden;
}

.page-products .pp-files__media .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 版本迭代 ---------- */
.page-products .pp-versions {
  background: var(--night);
}

.page-products .pp-vers {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-products .pp-ver {
  position: relative;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1fr);
  padding: 0 0 30px 26px;
}

.page-products .pp-ver:last-child {
  padding-bottom: 0;
}

.page-products .pp-ver::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(35, 224, 196, .14);
}

.page-products .pp-ver__year {
  font-size: .82rem;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-products .pp-ver__title {
  margin: 0 0 6px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--white);
}

.page-products .pp-ver__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.82;
  color: var(--text);
}

/* ---------- 行动区 ---------- */
.page-products .pp-cta {
  background:
    radial-gradient(90% 120% at 88% 10%, rgba(35, 224, 196, .18), transparent 62%),
    linear-gradient(180deg, var(--night-2) 0%, var(--ink) 100%);
  border-top: 1px solid var(--line-soft);
}

.page-products .pp-cta__inner {
  display: grid;
  gap: 26px;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}

.page-products .pp-cta__title {
  margin: 10px 0 12px;
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-products .pp-cta__text {
  max-width: 62ch;
  margin: 0;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--text);
}

.page-products .pp-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .pp-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pp-grid--2,
  .page-products .pp-grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pp-files {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pp-file {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pp-file__icons {
    flex-direction: column;
  }

  .page-products .pp-compare__notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pp-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 46px;
  }

  .page-products .section__head {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    gap: 34px;
    align-items: end;
  }

  .page-products .pp-flow {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: stretch;
    gap: 20px;
  }

  .page-products .pp-flow__arrow {
    align-self: center;
    justify-self: center;
    width: 52px;
    height: 52px;
  }

  .page-products .pp-flow__media {
    margin-top: 40px;
  }

  .page-products .pp-compare {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 34px;
    align-items: start;
  }

  .page-products .pp-stages {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 32px;
    align-items: start;
  }

  .page-products .pp-stages__main {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .pp-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-ver {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-products .pp-cta__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: 40px;
  }
}

@media (min-width: 1180px) {
  .page-products .pp-mod {
    padding: 30px 26px 26px;
  }

  .page-products .pp-files {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-products .pp-stages__side {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-products .pp-file {
    transition: none;
  }

  .page-products .pp-file:hover {
    transform: none;
  }
}

.page-products {
  --w: 1rem;
}