.page-products {
  background: var(--ice);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-products [id] {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
}

.page-products p {
  line-height: 1.8;
}

.page-products h1 {
  font-size: clamp(30px, 7vw, 54px);
  line-height: 1.1;
  margin: 12px 0 16px;
}

.page-products h2.section-title {
  font-size: clamp(24px, 4.4vw, 34px);
  line-height: 1.2;
  margin-bottom: 12px;
}

.page-products h3 {
  font-size: 19px;
  line-height: 1.35;
}

.page-products .section-lead {
  color: var(--slate);
  max-width: 68ch;
}

/* ---------- 首屏 ---------- */

.page-products__hero {
  position: relative;
  padding-top: calc(var(--header-h) + 34px);
  padding-bottom: 46px;
  background:
    radial-gradient(80% 70% at 88% 4%, rgba(79, 227, 208, 0.24), transparent 62%),
    radial-gradient(70% 62% at 4% 0%, rgba(14, 111, 224, 0.14), transparent 66%),
    var(--ice);
}

.page-products__hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--frost) 18%, var(--frost) 82%, transparent);
}

.page-products__hero-grid {
  display: grid;
  gap: 30px;
  align-items: start;
}

.page-products__hero-copy {
  max-width: 660px;
}

.page-products__hero-copy .eyebrow {
  margin-bottom: 4px;
}

.page-products__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products__hero-meta {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 0;
}

.page-products__hero-meta li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 22px;
  border-left: 1px solid var(--frost);
}

.page-products__hero-meta li:first-child {
  padding-left: 0;
  border-left: 0;
}

.page-products__hero-meta strong {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--maple);
}

.page-products__hero-meta span {
  font-size: 13px;
  color: var(--slate);
  letter-spacing: 0.02em;
}

.page-products__hero-visual {
  position: relative;
  min-height: 220px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.7);
  background:
    radial-gradient(62% 58% at 26% 22%, rgba(79, 227, 208, 0.62), transparent 68%),
    radial-gradient(70% 62% at 82% 78%, rgba(214, 40, 40, 0.4), transparent 70%),
    linear-gradient(150deg, var(--aurora-deep), var(--aurora) 72%, var(--aurora-light));
  box-shadow: var(--shadow-2);
  overflow: hidden;
  isolation: isolate;
}

.page-products__hero-glow {
  position: absolute;
  inset: -30% -10% auto auto;
  width: 62%;
  height: 130%;
  background: conic-gradient(from 200deg at 50% 50%, rgba(79, 227, 208, 0.7), rgba(14, 111, 224, 0.12), rgba(255, 107, 91, 0.55), rgba(79, 227, 208, 0.7));
  filter: blur(28px);
  opacity: 0.72;
  z-index: -1;
}

.page-products__hero-rail {
  position: absolute;
  left: 12%;
  top: 20%;
  width: 2px;
  height: 60%;
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(247, 250, 255, 0.1), var(--ice), rgba(247, 250, 255, 0.1));
}

.page-products__hero-node {
  position: absolute;
  left: calc(12% - 7px);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ice);
  box-shadow: 0 0 0 5px rgba(247, 250, 255, 0.18);
}

.page-products__hero-node::after {
  content: "";
  position: absolute;
  left: 16px;
  top: 7px;
  width: 46px;
  height: 2px;
  background: linear-gradient(90deg, rgba(247, 250, 255, 0.85), rgba(247, 250, 255, 0));
}

.page-products__hero-node--a {
  top: 26%;
}

.page-products__hero-node--b {
  top: 50%;
}

.page-products__hero-node--c {
  top: 74%;
}

/* ---------- 三步切换 ---------- */

.page-products__path-section {
  background: var(--ice);
}

.page-products__path-figure {
  margin: 28px 0 0;
}

.page-products__path {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  position: relative;
}

.page-products__path::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 10px;
  bottom: 18px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--aurora-cyan), var(--aurora) 58%, var(--maple));
  opacity: 0.55;
}

.page-products__node {
  position: relative;
  padding-left: 52px;
  padding-bottom: 24px;
}

.page-products__node:last-child {
  padding-bottom: 0;
}

.page-products__node::after {
  content: "";
  position: absolute;
  left: 34px;
  top: 18px;
  width: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--aurora), rgba(14, 111, 224, 0.18));
}

.page-products__node-index {
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--ice);
  background: linear-gradient(140deg, var(--aurora), var(--aurora-deep));
  box-shadow: 0 0 0 6px rgba(14, 111, 224, 0.1);
}

.page-products__node-body {
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--frost);
  background: var(--glass-strong);
  box-shadow: var(--shadow-1);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products__node:hover .page-products__node-body,
.page-products__node:focus-within .page-products__node-body {
  transform: translateY(-4px);
  border-color: var(--aurora-light);
  box-shadow: var(--shadow-2);
}

.page-products__node-body p {
  margin: 10px 0 0;
  color: var(--slate);
  font-size: 16px;
}

.page-products__node-time {
  display: inline-block;
  margin: 8px 0 0;
  padding: 3px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--maple);
  background: rgba(214, 40, 40, 0.08);
}

.page-products__detail {
  margin-top: 14px;
}

.page-products__detail > summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--frost);
  background: rgba(14, 111, 224, 0.06);
  color: var(--aurora);
  font-size: 14px;
  font-weight: 600;
}

.page-products__detail > summary::-webkit-details-marker {
  display: none;
}

.page-products__detail > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1;
}

.page-products__detail[open] > summary::after {
  content: "\2212";
}

.page-products__detail > summary:focus-visible {
  outline: 2px solid var(--aurora-light);
  outline-offset: 2px;
}

.page-products__detail ul {
  margin: 14px 0 2px;
  padding-left: 20px;
}

.page-products__detail li {
  color: var(--slate);
  line-height: 1.8;
  margin-bottom: 6px;
}

/* ---------- 线路分组 ---------- */

.page-products__lines-section {
  background:
    linear-gradient(180deg, rgba(217, 228, 242, 0.5), rgba(247, 250, 255, 0) 34%),
    var(--ice);
}

.page-products__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-products__chips .chip {
  text-decoration: none;
}

.page-products__lines {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.page-products__line {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
  padding: 22px;
}

.page-products__line h3 {
  margin-top: 2px;
}

.page-products__line p {
  margin: 0;
  font-size: 15px;
  color: var(--slate);
}

.page-products__line--focus {
  background:
    linear-gradient(150deg, rgba(79, 227, 208, 0.16), rgba(14, 111, 224, 0.06) 62%, transparent),
    var(--glass-strong);
  border-color: rgba(79, 227, 208, 0.6);
}

.page-products__line-codes {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--aurora-deep);
  letter-spacing: 0.01em;
}

.page-products__line-codes span {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: rgba(6, 42, 84, 0.06);
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--slate);
}

.page-products__line .copy-btn {
  margin-top: 4px;
}

.page-products__method {
  margin-top: 34px;
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--frost);
  background: var(--glass-strong);
  box-shadow: var(--shadow-1);
}

.page-products__method h3 {
  font-size: 20px;
}

.page-products__method ol {
  counter-reset: method;
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products__method li {
  position: relative;
  padding-left: 30px;
  color: var(--slate);
  line-height: 1.8;
}

.page-products__method li::before {
  counter-increment: method;
  content: counter(method);
  position: absolute;
  left: 0;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--ice);
  background: var(--aurora);
}

.page-products__method strong {
  color: var(--ink);
  margin-right: 6px;
}

/* ---------- 多设备登录 ---------- */

.page-products__split {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-products__split-copy p {
  color: var(--slate);
  margin: 14px 0 0;
}

.page-products__split-copy .section-title {
  margin-top: 6px;
}

.page-products__steps {
  counter-reset: step;
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products__steps li {
  position: relative;
  padding: 12px 16px 12px 46px;
  border-radius: var(--radius-md);
  border: 1px solid var(--frost);
  background: var(--glass-strong);
  color: var(--ink);
  line-height: 1.7;
}

.page-products__steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 13px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--aurora-deep);
  background: rgba(79, 227, 208, 0.32);
}

.page-products__device-figure {
  order: -1;
  border-radius: var(--radius-lg);
}

/* ---------- 加载提速 ---------- */

.page-products__speed-section {
  background:
    linear-gradient(180deg, rgba(6, 42, 84, 0.04), rgba(247, 250, 255, 0) 40%),
    var(--ice);
}

.page-products__speed-figure {
  margin: 26px 0 0;
}

.page-products__compare {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-products__compare-col {
  padding: 20px 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--frost);
  background: var(--glass-strong);
}

.page-products__compare-col--after {
  border-color: rgba(79, 227, 208, 0.72);
  background: linear-gradient(150deg, rgba(79, 227, 208, 0.16), rgba(14, 111, 224, 0.07) 62%, transparent), var(--glass-strong);
}

.page-products__compare-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--slate);
  text-transform: uppercase;
}

.page-products__compare-value {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: var(--aurora-deep);
  letter-spacing: -0.02em;
}

.page-products__compare-col--after .page-products__compare-value {
  color: var(--aurora);
}

.page-products__compare-value small {
  font-size: 15px;
  margin-left: 6px;
  color: var(--slate);
  letter-spacing: 0.02em;
}

.page-products__compare-bar {
  display: block;
  position: relative;
  height: 10px;
  margin: 16px 0 12px;
  border-radius: 999px;
  background: var(--frost);
  overflow: hidden;
}

.page-products__compare-bar::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--aurora-deep), var(--aurora-light));
}

.page-products__compare-bar--full::after {
  width: 100%;
}

.page-products__compare-bar--mid::after {
  width: 57%;
  background: linear-gradient(90deg, var(--aurora), var(--aurora-cyan));
}

.page-products__compare-col p {
  margin: 0;
  font-size: 15px;
  color: var(--slate);
}

.page-products__settings {
  display: grid;
  gap: 26px;
  margin-top: 34px;
}

.page-products__settings-figure {
  border-radius: var(--radius-lg);
}

.page-products__setting-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products__setting-list li {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--frost);
  background: var(--glass-strong);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products__setting-list li:hover {
  transform: translateY(-4px);
  border-color: var(--aurora-light);
  box-shadow: var(--shadow-2);
}

.page-products__setting-list h3 {
  font-size: 17px;
}

.page-products__setting-list p {
  margin: 8px 0 0;
  font-size: 15px;
  color: var(--slate);
}

.page-products__setting-index {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ice);
  background: linear-gradient(140deg, var(--aurora), var(--aurora-deep));
}

/* ---------- 自查 ---------- */

.page-products__checks {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-products__check-figure {
  border-radius: var(--radius-lg);
}

.page-products__check-copy p {
  color: var(--slate);
  margin: 14px 0 0;
}

.page-products__check-list {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-products__check {
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--frost);
  border-left-width: 4px;
  background: var(--glass-strong);
}

.page-products__check:nth-child(1) {
  border-left-color: var(--maple);
}

.page-products__check:nth-child(2) {
  border-left-color: var(--aurora);
}

.page-products__check:nth-child(3) {
  border-left-color: var(--aurora-cyan);
}

.page-products__check h3 {
  font-size: 17px;
}

.page-products__check ol {
  margin: 10px 0 0;
  padding-left: 20px;
}

.page-products__check li {
  color: var(--slate);
  line-height: 1.75;
  margin-bottom: 6px;
}

.page-products__check-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products__check-note {
  font-size: 14px;
  color: var(--slate);
  margin-top: 14px;
}

/* ---------- 结尾 ---------- */

.page-products__next {
  padding-bottom: 56px;
}

.page-products__next-bar {
  display: grid;
  gap: 18px;
  padding: 26px;
  border-radius: var(--radius-lg);
  color: var(--ice);
  background:
    radial-gradient(70% 120% at 92% 10%, rgba(79, 227, 208, 0.34), transparent 62%),
    linear-gradient(118deg, var(--aurora-deep), #0a3f7a 58%, var(--aurora));
  box-shadow: var(--shadow-2);
}

.page-products__next-bar p {
  margin: 0;
  color: rgba(247, 250, 255, 0.88);
  font-size: 16px;
}

.page-products__next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 平板 ---------- */

@media (min-width: 700px) {
  .page-products__hero {
    padding-top: calc(var(--header-h) + 46px);
    padding-bottom: 60px;
  }

  .page-products__hero-visual {
    min-height: 300px;
  }

  .page-products__compare {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products__lines {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products__line--focus {
    grid-column: span 2;
  }

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

  .page-products__next-bar {
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 30px 34px;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 960px) {
  .page-products__hero-grid {
    grid-template-columns: 5fr 7fr;
    gap: 48px;
    align-items: center;
  }

  .page-products__hero-visual {
    min-height: 380px;
  }

  .page-products__path {
    margin-top: 40px;
  }

  .page-products__node {
    padding-left: 68px;
    padding-bottom: 30px;
  }

  .page-products__node::after {
    left: 34px;
    width: 28px;
  }

  .page-products__path::before {
    left: 17px;
  }

  .page-products__split {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 52px;
  }

  .page-products__device-figure {
    order: 0;
  }

  .page-products__settings {
    grid-template-columns: 0.86fr 1.14fr;
    gap: 44px;
    align-items: start;
  }

  .page-products__checks {
    grid-template-columns: 0.78fr 1.22fr;
    gap: 48px;
  }
}

@media (min-width: 1120px) {
  .page-products__lines {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products__line--focus {
    grid-column: span 2;
  }
}