.page-disclaimer {
  --rail-pad: 40px;
  --rail-line: 26px;
  background: var(--ink);
  color: var(--paper);
}

.page-disclaimer .m-container {
  width: 100%;
  max-width: var(--w);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
  box-sizing: border-box;
}

/* ---------- 顶部：深色区 ---------- */
.page-disclaimer .usage-top {
  padding: clamp(22px, 4vw, 40px) 0 clamp(38px, 6vw, 76px);
  border-bottom: 1px solid var(--edge-dark);
}

.page-disclaimer .m-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(243, 238, 230, 0.62);
  margin-bottom: clamp(26px, 5vw, 52px);
}

.page-disclaimer .m-breadcrumb__link {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--speed), color var(--speed);
}

.page-disclaimer .m-breadcrumb__link:hover,
.page-disclaimer .m-breadcrumb__link:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-disclaimer .m-breadcrumb__sep {
  color: rgba(243, 238, 230, 0.35);
}

.page-disclaimer .usage-top__eyebrow {
  color: var(--amber);
  margin: 0 0 14px;
}

.page-disclaimer .usage-top__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 16ch;
  color: var(--paper);
}

.page-disclaimer .usage-top__lede {
  font-family: var(--f-body);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.75;
  color: rgba(243, 238, 230, 0.78);
  max-width: 60ch;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
}

/* ---------- 比分条式摘要 ---------- */
.page-disclaimer .usage-strip {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--edge-dark);
  border: 1px solid var(--edge-dark);
}

.page-disclaimer .usage-strip__item {
  background: var(--char);
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 6px 12px;
  padding: 16px 18px;
  border-left: 3px solid transparent;
  transition: border-color var(--speed), transform var(--speed), background-color var(--speed);
}

.page-disclaimer .usage-strip__item:hover {
  border-left-color: var(--amber);
  background: #202026;
  transform: translateY(-2px);
}

.page-disclaimer .usage-strip__num {
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.1em;
}

.page-disclaimer .usage-strip__key {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(243, 238, 230, 0.6);
}

.page-disclaimer .usage-strip__val {
  grid-column: 1 / -1;
  font-family: var(--f-display);
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--paper);
}

.page-disclaimer .usage-strip__val.m-num {
  font-family: var(--f-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.page-disclaimer .usage-strip__note {
  grid-column: 1 / -1;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(243, 238, 230, 0.62);
}

/* ---------- 首图 ---------- */
.page-disclaimer .usage-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.page-disclaimer .m-figure__frame {
  border: 1px solid var(--edge-dark);
  background: var(--char);
  overflow: hidden;
}

.page-disclaimer .m-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.55) contrast(1.05);
}

.page-disclaimer .m-figure__caption {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: rgba(243, 238, 230, 0.5);
}

/* ---------- 条文区：纸白 ---------- */
.page-disclaimer .usage-doc {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(38px, 6vw, 84px) 0 clamp(44px, 7vw, 96px);
  border-top: 3px solid var(--crimson);
}

.page-disclaimer .usage-doc__head {
  max-width: 640px;
}

.page-disclaimer .usage-doc__head .m-eyebrow {
  color: var(--crimson);
  margin: 0 0 10px;
}

.page-disclaimer .usage-doc__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

/* ---------- 刻度尺条文列表 ---------- */
.page-disclaimer .usage-rail {
  list-style: none;
  margin: clamp(26px, 4vw, 48px) 0 0;
  padding: 0 0 0 var(--rail-pad);
  max-width: 660px;
  border-left: 1px solid var(--edge);
  background-image: repeating-linear-gradient(
    to bottom,
    var(--edge) 0 1px,
    transparent 1px var(--rail-line)
  );
  background-repeat: no-repeat;
  background-position: left top;
  background-size: 11px 100%;
}

.page-disclaimer .clause {
  position: relative;
  margin: 0 0 clamp(26px, 4vw, 42px);
  padding-top: 2px;
}

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

.page-disclaimer .clause::before {
  content: attr(data-letter);
  position: absolute;
  left: -34px;
  top: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--crimson);
  color: var(--paper);
  font-family: var(--f-num);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  transition: background-color var(--speed), transform var(--speed);
}

.page-disclaimer .clause:hover::before {
  background: var(--red);
  transform: translateY(-2px);
}

.page-disclaimer .clause__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.6vw, 1.65rem);
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-disclaimer .clause__lede {
  font-family: var(--f-body);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
  color: rgba(13, 13, 15, 0.78);
}

.page-disclaimer .clause__more {
  margin-top: 12px;
}

.page-disclaimer .clause__summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--crimson);
  cursor: pointer;
  list-style: none;
  border-bottom: 1px solid rgba(142, 27, 34, 0.32);
  transition: color var(--speed), border-color var(--speed);
}

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

.page-disclaimer .clause__summary::before {
  content: "+";
  font-family: var(--f-num);
  font-size: 13px;
  line-height: 1;
}

.page-disclaimer .clause__more[open] .clause__summary::before {
  content: "−";
}

.page-disclaimer .clause__summary:hover,
.page-disclaimer .clause__summary:focus-visible {
  color: var(--red);
  border-bottom-color: var(--red);
}

.page-disclaimer .clause__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--edge);
  display: grid;
  gap: 9px;
}

.page-disclaimer .clause__list li {
  position: relative;
  padding-left: 18px;
  font-family: var(--f-body);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(13, 13, 15, 0.82);
}

.page-disclaimer .clause__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 8px;
  height: 1px;
  background: var(--red);
}

.page-disclaimer .clause__list a {
  color: var(--crimson);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 16, 46, 0.35);
  transition: color var(--speed), border-color var(--speed);
}

.page-disclaimer .clause__list a:hover,
.page-disclaimer .clause__list a:focus-visible {
  color: var(--red);
  border-bottom-color: var(--red);
}

.page-disclaimer .usage-mark {
  background: rgba(245, 179, 1, 0.24);
  color: inherit;
  padding: 0 0.16em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.page-disclaimer .m-num {
  font-family: var(--f-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* ---------- 引用示例 ---------- */
.page-disclaimer .usage-cite {
  margin: 16px 0 0;
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--edge);
  border-left: 3px solid var(--amber);
  display: grid;
  gap: 10px;
}

.page-disclaimer .usage-cite__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mute);
  margin: 0;
}

.page-disclaimer .usage-cite__text {
  margin: 0;
  font-family: var(--f-num);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--ink);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-disclaimer .usage-cite__btn {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-family: var(--f-num);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background-color var(--speed), color var(--speed), transform var(--speed);
}

.page-disclaimer .usage-cite__btn:hover,
.page-disclaimer .usage-cite__btn:focus-visible {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-2px);
}

/* ---------- 底部指路 ---------- */
.page-disclaimer .usage-out {
  margin-top: clamp(30px, 5vw, 56px);
  padding-top: clamp(18px, 3vw, 26px);
  border-top: 2px solid var(--ink);
  max-width: 660px;
}

.page-disclaimer .usage-out__text {
  margin: 0;
  font-family: var(--f-body);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(13, 13, 15, 0.82);
}

.page-disclaimer .usage-out__text a {
  color: var(--crimson);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 16, 46, 0.4);
  transition: color var(--speed), border-color var(--speed);
}

.page-disclaimer .usage-out__text a:hover,
.page-disclaimer .usage-out__text a:focus-visible {
  color: var(--red);
  border-bottom-color: var(--red);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-disclaimer .usage-strip {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-disclaimer .usage-strip__item {
    padding: 18px 20px;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer {
    --rail-pad: 68px;
  }

  .page-disclaimer .clause::before {
    left: -46px;
    width: 26px;
    height: 26px;
    font-size: 13px;
  }

  .page-disclaimer .usage-rail {
    max-width: 620px;
  }
}

@media (max-width: 430px) {
  .page-disclaimer {
    --rail-pad: 30px;
    --rail-line: 22px;
  }

  .page-disclaimer .clause::before {
    left: -28px;
    width: 20px;
    height: 20px;
    font-size: 11px;
  }

  .page-disclaimer .usage-top__title {
    max-width: 100%;
  }

  .page-disclaimer .usage-cite {
    padding: 12px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-strip__item,
  .page-disclaimer .clause::before,
  .page-disclaimer .usage-cite__btn,
  .page-disclaimer .m-breadcrumb__link,
  .page-disclaimer .clause__summary,
  .page-disclaimer .clause__list a,
  .page-disclaimer .usage-out__text a {
    transition: none;
  }

  .page-disclaimer .usage-strip__item:hover,
  .page-disclaimer .clause:hover::before,
  .page-disclaimer .usage-cite__btn:hover {
    transform: none;
  }
}