.page-disclaimer {
  --agr-pad: calc(var(--unit) * 3);
  --agr-line: rgba(34, 48, 63, 1);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .agreement-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--unit) * 6) 0 calc(var(--unit) * 5);
  border-bottom: 1px solid var(--steel);
  background:
    radial-gradient(circle at 84% -10%, rgba(47, 227, 208, 0.12), transparent 56%),
    linear-gradient(168deg, var(--night) 0%, var(--deep) 74%);
}

.page-disclaimer .agreement-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(47, 227, 208, 0.16);
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-disclaimer .agreement-hero .breadcrumb {
  margin-bottom: calc(var(--unit) * 5);
}

.page-disclaimer .agreement-hero h1 {
  position: relative;
  margin: calc(var(--unit) * 2) 0 calc(var(--unit) * 3);
  max-width: 22em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 6.6vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--fog);
}

.page-disclaimer .agreement-lede {
  max-width: 54ch;
  margin: 0 0 calc(var(--unit) * 4);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ash);
}

/* ---------- 快速定位轨道 ---------- */
.page-disclaimer .quick-nav {
  display: flex;
  gap: 1px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .quick-nav__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 14px;
  border: 1px solid var(--steel);
  background: var(--card);
  color: var(--ash);
  font-size: 13px;
  line-height: 1.2;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-disclaimer .quick-nav__no {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--smoke);
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .quick-nav__link:hover,
.page-disclaimer .quick-nav__link:focus-visible {
  border-color: rgba(47, 227, 208, 0.6);
  background: var(--night);
  color: var(--fog);
}

.page-disclaimer .quick-nav__link:hover .quick-nav__no,
.page-disclaimer .quick-nav__link:focus-visible .quick-nav__no {
  color: var(--cyan);
}

/* ---------- 主题图 ---------- */
.page-disclaimer .agreement-figure {
  margin: calc(var(--unit) * 5) 0 0;
}

.page-disclaimer .agreement-figure__frame {
  border: 1px solid var(--steel);
  background: var(--night);
  overflow: hidden;
}

.page-disclaimer .agreement-figure__frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-disclaimer .agreement-figure__caption {
  margin-top: calc(var(--unit) * 1.5);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--smoke);
  line-height: 1.6;
}

/* ---------- 条款区 ---------- */
.page-disclaimer .agreement-body {
  padding: calc(var(--unit) * 7) 0 calc(var(--unit) * 6);
}

.page-disclaimer .agreement-head {
  margin-bottom: calc(var(--unit) * 4);
  padding-bottom: calc(var(--unit) * 3);
  border-bottom: 1px solid var(--steel);
}

.page-disclaimer .agreement-head h2 {
  margin: calc(var(--unit) * 1.5) 0 calc(var(--unit) * 1.5);
  max-width: 20em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 4.4vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--fog);
}

.page-disclaimer .agreement-head__note {
  margin: 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ash);
}

/* ---------- 卡片网格 ---------- */
.page-disclaimer .agreement-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--unit) * 2);
  align-items: start;
}

.page-disclaimer .clause-card {
  position: relative;
  border: 1px solid var(--steel);
  background: var(--card);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-disclaimer .clause-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--scan) var(--ease);
  pointer-events: none;
}

.page-disclaimer .clause-card:hover {
  border-color: rgba(47, 227, 208, 0.5);
  transform: translateY(-2px);
}

.page-disclaimer .clause-card:hover::before,
.page-disclaimer .clause-card[open]::before {
  transform: scaleX(1);
}

.page-disclaimer .clause-card[open] {
  border-color: rgba(47, 227, 208, 0.42);
}

/* ---------- 折叠头 ---------- */
.page-disclaimer .clause-card__summary {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "top meta"
    "gist gist";
  gap: 8px 12px;
  padding: var(--agr-pad);
  cursor: pointer;
  list-style: none;
}

.page-disclaimer .clause-card__summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .clause-card__summary::marker {
  content: "";
}

.page-disclaimer .clause-card__summary::after {
  content: "+";
  position: absolute;
  right: var(--agr-pad);
  bottom: calc(var(--agr-pad) + 2px);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--cyan);
}

.page-disclaimer .clause-card[open] > .clause-card__summary::after {
  content: "−";
}

.page-disclaimer .clause-card__top {
  grid-area: top;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-disclaimer .clause-card__index {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-disclaimer .clause-card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-disclaimer .clause-card__meta {
  grid-area: meta;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--smoke);
  white-space: nowrap;
}

.page-disclaimer .clause-card__gist {
  grid-area: gist;
  padding-right: calc(var(--unit) * 3);
  font-size: 13px;
  line-height: 1.65;
  color: var(--ash);
}

/* ---------- 展开正文 ---------- */
.page-disclaimer .clause-card__body {
  padding: 0 var(--agr-pad) var(--agr-pad);
  border-top: 1px solid var(--steel);
  margin-top: calc(var(--unit) * 1);
  padding-top: calc(var(--unit) * 2);
}

.page-disclaimer .clause-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .clause-list li {
  display: grid;
  grid-template-columns: 2.9em 1fr;
  gap: 10px;
  padding: calc(var(--unit) * 1.25) 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ash);
  border-top: 1px solid rgba(34, 48, 63, 0.85);
}

.page-disclaimer .clause-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .clause-list__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--smoke);
  padding-top: 3px;
}

.page-disclaimer .forbid-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .forbid-list li {
  position: relative;
  margin-bottom: calc(var(--unit) * 1.25);
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ash);
}

.page-disclaimer .forbid-list li::before {
  content: "×";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--orange);
  line-height: 1.6;
}

.page-disclaimer .clause-card__note {
  margin: calc(var(--unit) * 2) 0 0;
  padding: calc(var(--unit) * 1.75) calc(var(--unit) * 2);
  border-left: 3px solid var(--orange);
  background: rgba(255, 106, 43, 0.07);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ash);
}

/* ---------- 修订记录条带 ---------- */
.page-disclaimer .change-strip {
  border-top: 1px solid var(--steel);
  border-bottom: 1px solid var(--steel);
  background: var(--night);
  padding: calc(var(--unit) * 6) 0 calc(var(--unit) * 7);
}

.page-disclaimer .change-strip__head {
  margin-bottom: calc(var(--unit) * 4);
}

.page-disclaimer .change-strip__head h2 {
  margin: calc(var(--unit) * 1.5) 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 4vw, 1.75rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--fog);
}

.page-disclaimer .change-track {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--unit) * 3);
}

.page-disclaimer .change-item {
  position: relative;
  padding-top: calc(var(--unit) * 3);
}

.page-disclaimer .change-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--steel);
  transition: background var(--dur) var(--ease);
}

.page-disclaimer .change-item__node {
  position: absolute;
  top: -4px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--smoke);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-disclaimer .change-item:hover::before {
  background: rgba(47, 227, 208, 0.45);
}

.page-disclaimer .change-item:hover .change-item__node {
  background: var(--cyan);
  transform: translateY(-2px);
}

.page-disclaimer .change-item__ver {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--fog);
}

.page-disclaimer .change-item__when {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--smoke);
}

.page-disclaimer .change-item__what {
  margin: calc(var(--unit) * 1.25) 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ash);
}

/* ---------- 底部指引 ---------- */
.page-disclaimer .agreement-help {
  padding: calc(var(--unit) * 7) 0 calc(var(--unit) * 8);
}

.page-disclaimer .agreement-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--unit) * 4);
}

.page-disclaimer .agreement-help__intro h2 {
  margin: 0 0 calc(var(--unit) * 1.5);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 4.2vw, 1.9rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--fog);
}

.page-disclaimer .agreement-help__intro p {
  margin: 0;
  max-width: 40ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ash);
}

.page-disclaimer .agreement-help__links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
}

.page-disclaimer .agreement-help__links li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: calc(var(--unit) * 2) 0;
  border-top: 1px solid var(--steel);
}

.page-disclaimer .agreement-help__links li:first-child {
  border-top: 1px solid var(--cyan);
}

.page-disclaimer .agreement-help__links a {
  align-self: flex-start;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  color: var(--fog);
  text-decoration: none;
  border-bottom: 1px solid var(--steel);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .agreement-help__links a:hover,
.page-disclaimer .agreement-help__links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-disclaimer .agreement-help__links span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--smoke);
  line-height: 1.6;
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 519px) {
  .page-disclaimer .clause-list li {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .page-disclaimer .clause-list__no {
    padding-top: 0;
    color: var(--cyan);
  }

  .page-disclaimer .clause-card__summary {
    grid-template-columns: 1fr;
    grid-template-areas:
      "meta"
      "top"
      "gist";
  }

  .page-disclaimer .clause-card__meta {
    white-space: normal;
  }

  .page-disclaimer .agreement-hero::after {
    display: none;
  }
}

/* ---------- 桌面与平板 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .agreement-hero {
    padding: calc(var(--unit) * 9) 0 calc(var(--unit) * 7);
  }

  .page-disclaimer .agreement-lede {
    font-size: 16px;
  }

  .page-disclaimer .agreement-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .clause-card--wide {
    grid-column: 1 / -1;
  }

  .page-disclaimer .change-track {
    column-gap: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .change-item {
    padding-right: calc(var(--unit) * 3);
    padding-bottom: calc(var(--unit) * 2);
  }

  .page-disclaimer .agreement-help__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: calc(var(--unit) * 6);
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-disclaimer .agreement-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: calc(var(--unit) * 2.5);
  }

  .page-disclaimer .change-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-disclaimer .clause-card:nth-child(2) {
    margin-top: calc(var(--unit) * 4);
  }

  .page-disclaimer .clause-card:nth-child(3) {
    margin-top: calc(var(--unit) * 1.5);
  }

  .page-disclaimer .clause-card--wide {
    margin-top: calc(var(--unit) * 2.5);
  }

  .page-disclaimer .agreement-figure {
    margin-top: calc(var(--unit) * 6);
  }
}
<<<END>>>