/* ===== 使用说明页 · page-disclaimer ===== */
.page-disclaimer {
  --disc-measure: 44rem;
  --disc-line: rgba(26, 26, 26, 0.14);
  --disc-line-soft: rgba(26, 26, 26, 0.07);
  background: var(--c-porcelain);
}

.page-disclaimer .disc-crumb-bar {
  padding: 22px 0 0;
}

/* --- 引导区 --- */
.page-disclaimer .disc-hero {
  padding: clamp(22px, 4vw, 40px) 0 clamp(30px, 5vw, 52px);
}

.page-disclaimer .disc-hero-inner {
  max-width: var(--disc-measure);
  margin: 0 auto;
}

.page-disclaimer .disc-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-blueprint);
}

.page-disclaimer .disc-kicker::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--c-red);
  transform: rotate(45deg);
}

.page-disclaimer .disc-kicker::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--c-gold) 0%, rgba(201, 169, 110, 0) 100%);
}

.page-disclaimer .disc-title {
  margin: 0 0 22px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(28px, 4.6vw, 46px);
  line-height: 1.28;
  letter-spacing: 0.05em;
  color: var(--c-ink);
}

.page-disclaimer .disc-lede {
  margin: 0;
  max-width: 40rem;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--c-graphite);
}

/* --- 顶端抽象视觉 --- */
.page-disclaimer .disc-figure-wrap {
  padding: 0 0 clamp(38px, 6vw, 68px);
}

.page-disclaimer .disc-figure {
  margin: 0;
  border: 1px solid var(--disc-line);
  background: var(--c-white);
  box-shadow: var(--shadow-paper);
}

.page-disclaimer .disc-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 2;
  object-fit: cover;
}

.page-disclaimer .disc-figure figcaption {
  padding: 10px 16px;
  border-top: 1px solid var(--disc-line-soft);
  background: var(--c-porcelain);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--c-graphite);
}

/* --- 正文窄栏 --- */
.page-disclaimer .disc-body {
  padding: 0 0 clamp(20px, 3vw, 32px);
}

.page-disclaimer .disc-body-inner {
  max-width: var(--disc-measure);
  margin: 0 auto;
}

.page-disclaimer .disc-item {
  padding: clamp(26px, 4vw, 38px) 0;
  border-top: 1px solid var(--disc-line);
}

.page-disclaimer .disc-item:first-child {
  border-top: 0;
  padding-top: 0;
}

/* 等宽编号 */
.page-disclaimer .disc-no {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--c-ink);
}

.page-disclaimer .disc-no::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  margin-top: 9px;
  background: var(--c-gold);
  transition: width 0.32s var(--ease);
}

.page-disclaimer .disc-item:hover .disc-no::after {
  width: 34px;
}

/* 左侧边线：默认鎏金浅，悬停加深为盛世红 */
.page-disclaimer .disc-item-main {
  position: relative;
  padding-left: 16px;
}

.page-disclaimer .disc-item-main::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--c-gold-light);
  transition: background-color 0.32s var(--ease), width 0.32s var(--ease);
}

.page-disclaimer .disc-item:hover .disc-item-main::before,
.page-disclaimer .disc-item:focus-within .disc-item-main::before {
  background: var(--c-red);
  width: 3px;
}

.page-disclaimer .disc-item-title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.48;
  letter-spacing: 0.04em;
  color: var(--c-ink);
}

.page-disclaimer .disc-item-main > p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-text);
}

.page-disclaimer .disc-item-main > p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .disc-item-main a {
  color: var(--c-red-deep);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 16, 46, 0.32);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-disclaimer .disc-item-main a:hover {
  color: var(--c-red);
  border-bottom-color: var(--c-red);
}

/* 条目列表 */
.page-disclaimer .disc-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 12px;
}

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

.page-disclaimer .disc-list > li {
  position: relative;
  padding-left: 24px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-text);
}

.page-disclaimer .disc-list > li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.82em;
  width: 10px;
  height: 1px;
  background: var(--c-gold);
}

.page-disclaimer .disc-list strong {
  color: var(--c-ink);
  font-weight: 600;
}

/* 提示性条目：琥珀色左边线 */
.page-disclaimer .disc-list > li.disc-note {
  padding: 12px 16px 12px 20px;
  border-left: 3px solid var(--c-amber);
  background: rgba(184, 116, 26, 0.06);
  color: var(--c-graphite);
}

.page-disclaimer .disc-list > li.disc-note::before {
  display: none;
}

/* 等宽代码 */
.page-disclaimer code {
  font-family: var(--font-mono);
  font-size: 13.5px;
  padding: 1px 6px;
  border: 1px solid var(--disc-line-soft);
  background: var(--c-white);
  color: var(--c-red-deep);
}

/* --- 反馈条带 --- */
.page-disclaimer .disc-band {
  position: relative;
  padding: clamp(40px, 7vw, 72px) 0 clamp(44px, 7vw, 76px);
  background: var(--c-ink);
  color: var(--c-porcelain);
}

.page-disclaimer .disc-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-red) 0%, var(--c-red-deep) 35%, var(--c-gold) 100%);
}

.page-disclaimer .disc-band-inner {
  max-width: var(--disc-measure);
  margin: 0 auto;
}

.page-disclaimer .disc-band-kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-gold);
}

.page-disclaimer .disc-band-title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.42;
  letter-spacing: 0.04em;
  color: var(--c-white);
}

.page-disclaimer .disc-band-text {
  margin: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(247, 244, 239, 0.78);
}

.page-disclaimer .disc-band-mail-wrap {
  margin: 0 0 16px;
}

.page-disclaimer .disc-band-mail {
  display: inline-block;
  max-width: 100%;
  padding: 12px 20px;
  border: 1px solid rgba(201, 169, 110, 0.45);
  background: rgba(201, 169, 110, 0.08);
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 17px);
  letter-spacing: 0.03em;
  color: var(--c-gold);
  text-decoration: none;
  word-break: break-all;
  transition: color 0.28s var(--ease), border-color 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-disclaimer .disc-band-mail:hover {
  color: var(--c-white);
  border-color: var(--c-gold);
  background: rgba(201, 169, 110, 0.18);
}

.page-disclaimer .disc-band-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(247, 244, 239, 0.55);
}

/* --- 响应式 --- */
@media (min-width: 640px) {
  .page-disclaimer .disc-item {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 0 22px;
  }

  .page-disclaimer .disc-no {
    margin: 0;
    padding-top: 5px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .disc-item-main {
    padding-left: 20px;
  }
}
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