/* ============================================================
   page: disclaimer — 使用条款
   低干扰条款长卷：左侧编号 / 右侧条文，索引固定在侧
   ============================================================ */

.page-disclaimer {
  --pd-hero-line: rgba(247, 245, 240, 0.07);
  --pd-hero-text: rgba(247, 245, 240, 0.76);
  --pd-hero-dim: rgba(247, 245, 240, 0.52);

  background: var(--paper-50);
  color: var(--ink-900);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
}

.page-disclaimer h1,
.page-disclaimer h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.02em;
}

.page-disclaimer .link {
  color: var(--indigo-600);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .link:hover {
  color: var(--amber-500);
}

/* ---------- 页首 ---------- */

.page-disclaimer .breadcrumb {
  padding-top: 18px;
  padding-bottom: 18px;
}

.page-disclaimer .terms-hero {
  position: relative;
  padding-top: 36px;
  background: var(--indigo-900);
  color: var(--paper-0);
  overflow: hidden;
}

.page-disclaimer .terms-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, var(--pd-hero-line) 1px, transparent 1px),
    linear-gradient(180deg, var(--pd-hero-line) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.page-disclaimer .terms-hero__inner,
.page-disclaimer .terms-hero__visual {
  position: relative;
  z-index: 1;
}

.page-disclaimer .terms-hero .eyebrow {
  color: var(--amber-500);
  margin: 0;
}

.page-disclaimer .terms-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(32px, 6.2vw, 68px);
  line-height: 1.06;
  max-width: 14em;
}

.page-disclaimer .terms-hero__lead {
  margin: 20px 0 0;
  max-width: 42em;
  font-size: 16px;
  color: var(--pd-hero-text);
}

.page-disclaimer .terms-meta {
  margin: 32px 0 0;
  border-top: var(--hair-light);
}

.page-disclaimer .terms-meta__item {
  padding: 12px 0;
  border-bottom: var(--hair-light);
}

.page-disclaimer .terms-meta dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--pd-hero-dim);
}

.page-disclaimer .terms-meta dd {
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--paper-0);
}

.page-disclaimer .terms-hero__visual {
  margin-top: 32px;
}

.page-disclaimer .terms-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  border-top: var(--hair-light);
  object-fit: cover;
  filter: saturate(0.9) contrast(1.02);
}

/* ---------- 正文骨架 ---------- */

.page-disclaimer .terms-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-top: 44px;
  padding-bottom: 8px;
}

/* ---------- 条款索引 ---------- */

.page-disclaimer .terms-index {
  background: var(--paper-0);
  border: var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 18px 18px 14px;
}

.page-disclaimer .terms-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--slate-500);
}

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

.page-disclaimer .terms-index__list li + li {
  border-top: var(--line);
}

.page-disclaimer .terms-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  font-size: 14px;
  color: var(--ink-900);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .terms-index__list a:hover {
  color: var(--amber-500);
}

.page-disclaimer .terms-index__list .mono {
  font-size: 12px;
  color: var(--slate-500);
  letter-spacing: 0.06em;
}

.page-disclaimer .terms-index__list a:hover .mono {
  color: var(--amber-500);
}

.page-disclaimer .terms-index__foot {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: var(--line);
  font-size: 12px;
  color: var(--slate-500);
}

/* ---------- 条款条目 ---------- */

.page-disclaimer .terms-doc {
  min-width: 0;
}

.page-disclaimer .clause {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding: 26px 0;
  border-top: var(--line);
  scroll-margin-top: 92px;
}

.page-disclaimer .clause:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-disclaimer .clause__no {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--amber-500);
  line-height: 1.7;
}

.page-disclaimer .clause__body {
  min-width: 0;
}

.page-disclaimer .clause h2 {
  margin: 0 0 12px;
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.28;
  color: var(--ink-900);
}

.page-disclaimer .clause p {
  margin: 0 0 14px;
  font-size: 16px;
  color: var(--ink-700);
}

.page-disclaimer .clause p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .clause__footnote {
  margin-top: 16px;
  padding: 12px 14px;
  background: var(--amber-100);
  border-left: 3px solid var(--amber-500);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--ink-700);
}

/* 联系方式行 */

.page-disclaimer .contact-rows {
  margin: 18px 0 0;
  border-top: var(--line);
}

.page-disclaimer .contact-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding: 12px 0;
  border-bottom: var(--line);
}

.page-disclaimer .contact-row dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate-500);
}

.page-disclaimer .contact-row dd {
  margin: 0;
  font-size: 15px;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

/* ---------- 页尾联系卡 ---------- */

.page-disclaimer .terms-contact {
  padding-top: 48px;
  padding-bottom: 64px;
}

.page-disclaimer .terms-contact__card {
  position: relative;
  background: var(--paper-0);
  border: var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
  padding: 28px 20px 24px;
  overflow: hidden;
}

.page-disclaimer .terms-contact__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--indigo-900) 0%, var(--indigo-600) 45%, var(--amber-500) 100%);
}

.page-disclaimer .terms-contact__card .eyebrow {
  margin: 0;
  color: var(--slate-500);
}

.page-disclaimer .terms-contact__card h2 {
  margin: 10px 0 12px;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.25;
  color: var(--ink-900);
}

.page-disclaimer .terms-contact__text {
  margin: 0;
  max-width: 44em;
  font-size: 16px;
  color: var(--ink-700);
}

.page-disclaimer .terms-contact__channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 22px;
  border: var(--line);
  border-radius: var(--radius);
  background: var(--line-300);
  overflow: hidden;
}

.page-disclaimer .terms-channel {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--paper-0);
  text-decoration: none;
  color: inherit;
  transition: background var(--dur) var(--ease);
}

.page-disclaimer a.terms-channel:hover {
  background: var(--amber-100);
}

.page-disclaimer .terms-channel__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate-500);
}

.page-disclaimer .terms-channel__value {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--ink-900);
  overflow-wrap: anywhere;
}

.page-disclaimer .terms-contact__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-500);
}

.page-disclaimer .terms-contact__cta {
  margin: 20px 0 0;
}

.page-disclaimer .terms-contact__cta .btn {
  display: inline-block;
}

/* ---------- 平板 ---------- */

@media (min-width: 640px) {
  .page-disclaimer .terms-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-disclaimer .terms-meta__item {
    border-bottom: 0;
    padding: 14px 0;
  }

  .page-disclaimer .terms-meta__item + .terms-meta__item {
    border-left: var(--hair-light);
    padding-left: 22px;
  }

  .page-disclaimer .contact-row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-disclaimer .terms-contact__channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .terms-contact__card {
    padding: 32px 28px 28px;
  }
}

/* ---------- 桌面：索引固定在左侧 ---------- */

@media (min-width: 960px) {
  .page-disclaimer .terms-body {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: 52px;
    padding-top: 56px;
  }

  .page-disclaimer .terms-index {
    position: sticky;
    top: 88px;
  }

  .page-disclaimer .terms-doc {
    max-width: var(--prose);
  }

  .page-disclaimer .clause {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px;
    padding: 32px 0;
  }

  .page-disclaimer .terms-hero {
    padding-top: 52px;
  }

  .page-disclaimer .terms-contact {
    padding-bottom: 88px;
  }
}

/* ---------- 动效收敛 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .link,
  .page-disclaimer .terms-index__list a,
  .page-disclaimer .terms-channel {
    transition: none;
  }
}