/* ============================================================
   page-disclaimer · 使用说明
   ============================================================ */

.page-disclaimer {
  --disc-read: 730px;
  --disc-hair: rgba(85, 98, 122, 0.3);
  background: var(--mist);
  color: var(--night);
  font-family: var(--font-body);
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 首屏 mast ---------- */

.page-disclaimer .disc-mast {
  position: relative;
  overflow: hidden;
  background: var(--night);
  color: var(--mist);
  padding: clamp(28px, 5vw, 52px) 0 clamp(40px, 6vw, 68px);
  border-bottom: 3px solid var(--cyan);
}

.page-disclaimer .disc-mast::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -12%;
  width: 62%;
  height: 172%;
  transform: skewX(-15deg);
  background:
    linear-gradient(
      112deg,
      rgba(18, 59, 46, 0) 32%,
      rgba(18, 59, 46, 0.92) 64%,
      rgba(56, 225, 198, 0.18) 100%
    );
  pointer-events: none;
}

.page-disclaimer .disc-mast::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(56, 225, 198, 0.05) 0 1px,
    transparent 1px 88px
  );
  pointer-events: none;
}

.page-disclaimer .disc-mast > .container {
  position: relative;
  z-index: 1;
}

.page-disclaimer .disc-mast .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin: 0 0 clamp(26px, 4vw, 40px);
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.page-disclaimer .disc-mast .breadcrumbs li + li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 1px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--line);
}

.page-disclaimer .disc-mast .breadcrumbs a {
  color: var(--cyan);
  text-decoration: none;
}

.page-disclaimer .disc-mast .breadcrumbs a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer .disc-mast .eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding: 4px 10px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--night);
  background: var(--cyan);
  border-radius: 3px;
}

.page-disclaimer .disc-mast h1 {
  max-width: 20ch;
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(32px, 6.4vw, 56px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-disclaimer .disc-mast__lede {
  max-width: 60ch;
  margin: 22px 0 0;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(242, 244, 248, 0.82);
}

.page-disclaimer .disc-mast__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.page-disclaimer .disc-mast .btn--ghost {
  color: var(--mist);
  border-color: rgba(242, 244, 248, 0.42);
}

.page-disclaimer .disc-mast .btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 主体外壳 ---------- */

.page-disclaimer .disc-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: clamp(32px, 5vw, 56px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

/* ---------- 章节导航 ---------- */

.page-disclaimer .disc-toc {
  border-top: 3px solid var(--night);
  padding-top: 16px;
}

.page-disclaimer .disc-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--teal);
}

.page-disclaimer .disc-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-disclaimer .disc-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--disc-hair);
  color: var(--night);
  font-size: 15px;
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.18s ease, padding-left 0.18s ease;
}

.page-disclaimer .disc-toc__list a:hover,
.page-disclaimer .disc-toc__list a:focus-visible {
  color: var(--teal);
  padding-left: 4px;
}

.page-disclaimer .disc-toc__num {
  flex: none;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--teal);
}

/* ---------- 正文区块 ---------- */

.page-disclaimer .disc-block {
  scroll-margin-top: 120px;
  padding-bottom: clamp(34px, 4.4vw, 52px);
  margin-bottom: clamp(34px, 4.4vw, 52px);
  border-bottom: 1px solid var(--disc-hair);
}

.page-disclaimer .disc-block:last-of-type {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-disclaimer .disc-block__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.page-disclaimer .disc-block__num {
  flex: none;
  padding: 4px 9px;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--mist);
  background: var(--night);
  border-radius: 3px;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-disclaimer .disc-block[data-active="true"] .disc-block__num {
  background: var(--orange);
  color: var(--night);
}

.page-disclaimer .disc-block__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(22px, 3.2vw, 30px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-disclaimer .disc-prose p {
  max-width: 68ch;
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.95;
}

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

.page-disclaimer .disc-prose a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 条款列表 ---------- */

.page-disclaimer .disc-clauses {
  counter-reset: clause;
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  max-width: 68ch;
}

.page-disclaimer .disc-clauses > li {
  counter-increment: clause;
  position: relative;
  padding: 15px 0 15px 54px;
  border-top: 1px solid var(--disc-hair);
  font-size: 16.5px;
  line-height: 1.9;
}

.page-disclaimer .disc-clauses > li:last-child {
  border-bottom: 1px solid var(--disc-hair);
}

.page-disclaimer .disc-clauses > li::before {
  content: counter(clause, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 17px;
  padding: 2px 7px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--teal);
  background: rgba(14, 76, 92, 0.1);
  border: 1px solid rgba(14, 76, 92, 0.32);
  border-radius: 3px;
}

.page-disclaimer .disc-clauses a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer .disc-clauses .num {
  font-family: var(--font-data);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* ---------- 信息图 ---------- */

.page-disclaimer .disc-figure {
  margin: 32px 0 0;
}

.page-disclaimer .disc-figure__frame {
  position: relative;
  overflow: hidden;
  border: 3px solid var(--night);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  background: var(--night);
  line-height: 0;
}

.page-disclaimer .disc-figure__frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-disclaimer .disc-nodes {
  position: relative;
  z-index: 2;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(11, 18, 32, 0.94);
  line-height: 1.5;
}

.page-disclaimer .disc-node {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  color: var(--mist);
  cursor: default;
  transition: background 0.2s ease;
}

.page-disclaimer .disc-node + .disc-node {
  border-top: 1px solid rgba(85, 98, 122, 0.42);
}

.page-disclaimer .disc-node:hover,
.page-disclaimer .disc-node:focus-visible {
  background: rgba(18, 59, 46, 0.75);
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.page-disclaimer .disc-node__value {
  font-family: var(--font-data);
  font-size: 26px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-disclaimer .disc-node__unit {
  margin-left: 3px;
  font-size: 13px;
  color: var(--dim);
}

.page-disclaimer .disc-node__label {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-disclaimer .disc-node__tip {
  font-size: 13px;
  line-height: 1.65;
  color: var(--dim);
}

.page-disclaimer .disc-figure__caption {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--line);
}

/* ---------- 收束 ---------- */

.page-disclaimer .disc-outro {
  margin-top: clamp(40px, 5.5vw, 64px);
  padding: clamp(26px, 4vw, 40px) clamp(20px, 3.4vw, 36px);
  background: rgba(11, 18, 32, 0.045);
  border: 1px solid var(--disc-hair);
  border-left: 5px solid var(--teal);
  border-radius: var(--radius);
}

.page-disclaimer .disc-outro__eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
}

.page-disclaimer .disc-outro h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(21px, 3vw, 28px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-disclaimer .disc-outro__text {
  max-width: 66ch;
  margin: 0 0 22px;
  font-size: 16.5px;
  line-height: 1.9;
}

.page-disclaimer .disc-outro__text .num {
  font-family: var(--font-data);
  font-weight: 600;
}

.page-disclaimer .disc-outro__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .disc-outro__links a {
  display: grid;
  gap: 3px;
  padding: 12px 14px;
  border: 1px solid var(--disc-hair);
  border-radius: var(--radius);
  background: var(--mist);
  color: var(--night);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-disclaimer .disc-outro__links a:hover,
.page-disclaimer .disc-outro__links a:focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--teal);
}

.page-disclaimer .disc-outro__links span {
  font-size: 13px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--line);
}

/* ---------- 桌面端 ---------- */

@media (min-width: 860px) {
  .page-disclaimer .disc-nodes {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 3px solid var(--cyan);
    background: rgba(11, 18, 32, 0.92);
  }

  .page-disclaimer .disc-node + .disc-node {
    border-top: 0;
    border-left: 1px solid rgba(85, 98, 122, 0.42);
  }

  .page-disclaimer .disc-node__tip {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.24s ease, opacity 0.24s ease;
  }

  .page-disclaimer .disc-node:hover .disc-node__tip,
  .page-disclaimer .disc-node:focus-visible .disc-node__tip {
    max-height: 6em;
    opacity: 1;
  }
}

@media (min-width: 980px) {
  .page-disclaimer .disc-shell {
    grid-template-columns: 232px minmax(0, var(--disc-read));
    justify-content: center;
    align-items: start;
    gap: 64px;
  }

  .page-disclaimer .disc-toc {
    position: sticky;
    top: 118px;
  }
}

@media (min-width: 1120px) {
  .page-disclaimer .disc-figure {
    width: 104%;
    margin-left: -2%;
  }
}

/* ---------- 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-toc__list a,
  .page-disclaimer .disc-node,
  .page-disclaimer .disc-outro__links a,
  .page-disclaimer .disc-block__num {
    transition: none;
  }

  .page-disclaimer .disc-outro__links a:hover,
  .page-disclaimer .disc-outro__links a:focus-visible {
    transform: none;
  }

  .page-disclaimer .disc-toc__list a:hover,
  .page-disclaimer .disc-toc__list a:focus-visible {
    padding-left: 0;
  }
}