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

.page-disclaimer {
  background: var(--night);
}

/* ---------- 首屏 ---------- */

.page-disclaimer .ins-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 56px) 0 0;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 86% 8%, rgba(43, 240, 200, 0.10), transparent 62%),
    radial-gradient(90% 70% at 6% 96%, rgba(255, 138, 61, 0.08), transparent 58%),
    linear-gradient(180deg, #071C16 0%, #0A241C 100%);
}

.page-disclaimer .ins-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(157, 184, 174, 0.055) 0 1px,
    transparent 1px 44px
  );
  pointer-events: none;
}

.page-disclaimer .ins-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
  padding-bottom: clamp(26px, 4vw, 44px);
}

.page-disclaimer .ins-hero__kicker {
  margin: 18px 0 12px;
  color: var(--cyan);
}

.page-disclaimer .ins-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(29px, 5.4vw, 54px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--glass);
}

.page-disclaimer .ins-hero__lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}

.page-disclaimer .ins-hero__mark {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-disclaimer .ins-hero__fig {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #0A241C;
}

.page-disclaimer .ins-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.88);
}

.page-disclaimer .ins-hero__rule {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 40px;
  margin-bottom: -1px;
}

/* ---------- 锚点索引条 ---------- */

.page-disclaimer .ins-index {
  border-bottom: 1px solid var(--line);
  background: #0A241C;
}

.page-disclaimer .ins-index__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.page-disclaimer .ins-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--glass);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.page-disclaimer .ins-index__link .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-disclaimer .ins-index__link:hover,
.page-disclaimer .ins-index__link:focus-visible {
  border-color: var(--cyan);
  background: rgba(43, 240, 200, 0.08);
}

/* ---------- 规则条带区 ---------- */

.page-disclaimer .ins-rules {
  padding: clamp(34px, 6vw, 72px) 0 clamp(30px, 5vw, 64px);
}

.page-disclaimer .ins-rules__head {
  max-width: 40em;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-disclaimer .ins-rules__head .kicker {
  color: var(--cyan);
  margin: 0 0 10px;
}

.page-disclaimer .ins-rules__intro {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-disclaimer .ins-rules__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .rule {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 20px 0 20px 15px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.page-disclaimer .rule::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.24s ease;
}

.page-disclaimer .rule:hover::before,
.page-disclaimer .rule:focus-within::before {
  transform: scaleY(1);
}

.page-disclaimer .rule__no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-disclaimer .rule__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 25px);
  font-weight: 700;
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--glass);
}

.page-disclaimer .rule__sum {
  margin: 0;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-disclaimer .rule__extra {
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.page-disclaimer .rule__extra p {
  margin: 0;
}

.page-disclaimer .rule__extra p + p {
  margin-top: 8px;
}

/* ---------- 引用范例 ---------- */

.page-disclaimer .ins-cite {
  padding: clamp(34px, 6vw, 72px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(14, 51, 39, 0.94) 0%, rgba(10, 36, 28, 0.94) 100%);
}

.page-disclaimer .ins-cite__grid {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

.page-disclaimer .ins-cite__copy .kicker {
  margin: 0 0 10px;
  color: var(--lemon);
}

.page-disclaimer .ins-cite__text {
  margin: 14px 0 0;
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-disclaimer .ins-cite__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .ins-cite__list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--glass);
}

.page-disclaimer .ins-cite__list .mono {
  flex: none;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-disclaimer .ins-cite__sample {
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  border-radius: var(--radius);
  background: #071C16;
}

.page-disclaimer .ins-cite__sample-head {
  margin: 0 0 14px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-disclaimer .ins-cite__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2;
  color: var(--glass);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
}

.page-disclaimer .ins-cite__code .ck {
  color: var(--cyan);
}

.page-disclaimer .ins-cite__sample-foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 反馈 ---------- */

.page-disclaimer .ins-feedback {
  padding: clamp(34px, 6vw, 72px) 0;
  background:
    radial-gradient(110% 80% at 90% 0%, rgba(232, 255, 106, 0.10), transparent 58%),
    linear-gradient(160deg, #241B4F 0%, #1A1438 100%);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .ins-feedback__inner {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-disclaimer .ins-feedback__lead .kicker {
  margin: 0 0 10px;
  color: var(--cyan);
}

.page-disclaimer .ins-feedback__lead p {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--glass);
}

.page-disclaimer .ins-feedback__ways {
  display: grid;
  gap: 14px;
}

.page-disclaimer .way {
  padding: 20px 20px 22px;
  border: 1px solid rgba(232, 245, 240, 0.16);
  border-radius: var(--radius);
  background: rgba(232, 245, 240, 0.06);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.page-disclaimer .way__k {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lemon);
}

.page-disclaimer .way__t {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--glass);
}

.page-disclaimer .way__v {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.6;
  word-break: break-all;
  color: var(--cyan);
}

.page-disclaimer .way__d {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-disclaimer .way__a {
  margin: 16px 0 0;
}

/* ---------- 版本与栏目 ---------- */

.page-disclaimer .ins-scope {
  padding: clamp(30px, 5vw, 60px) 0 clamp(42px, 7vw, 84px);
}

.page-disclaimer .ins-scope__inner {
  display: grid;
  gap: 14px;
}

.page-disclaimer .ins-scope__note {
  margin: 0;
  max-width: 46em;
  padding-left: 16px;
  border-left: 2px solid var(--lemon);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-disclaimer .ins-scope__links {
  margin: 0 0 0 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13.5px;
  color: var(--line);
}

.page-disclaimer .ins-scope__links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 240, 200, 0.35);
  padding-bottom: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-disclaimer .ins-scope__links a:hover,
.page-disclaimer .ins-scope__links a:focus-visible {
  color: var(--lemon);
  border-color: var(--lemon);
}

/* ---------- 中屏 ---------- */

@media (min-width: 720px) {
  .page-disclaimer .ins-feedback__ways {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 大屏 ---------- */

@media (min-width: 900px) {
  .page-disclaimer .ins-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-disclaimer .rule {
    grid-template-columns: 76px minmax(0, 1.65fr) minmax(0, 1fr);
    gap: clamp(20px, 3vw, 46px);
    padding: 26px 0 26px 22px;
    align-items: start;
  }

  .page-disclaimer .rule__no {
    padding-top: 6px;
  }

  .page-disclaimer .rule__extra {
    border-top: 0;
    padding-top: 6px;
    border-left: 1px solid var(--line);
    padding-left: clamp(16px, 2vw, 26px);
  }

  .page-disclaimer .ins-cite__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  }

  .page-disclaimer .ins-feedback__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
}

/* ---------- 减弱动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .rule::before {
    transition: none;
  }

  .page-disclaimer .ins-index__link,
  .page-disclaimer .ins-scope__links a {
    transition: none;
  }
}