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

.page-disclaimer {
  --disc-wrap: 880px;
  --disc-measure: 700px;
  --disc-rule: rgba(27, 42, 85, 0.72);
  --disc-soft: rgba(245, 247, 255, 0.86);
  display: block;
}

/* ---------- 通用容器 ---------- */
.page-disclaimer .disc-wrap {
  width: 100%;
  max-width: var(--disc-wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(40px, 7vw, 84px) 0 clamp(34px, 5vw, 60px);
  background: var(--grad-deep);
  border-bottom: 1px solid var(--disc-rule);
}

.page-disclaimer .disc-hero__img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% 50%;
  opacity: 0.28;
  -webkit-mask-image: linear-gradient(150deg, #000 0%, rgba(0, 0, 0, 0.35) 48%, transparent 84%);
  mask-image: linear-gradient(150deg, #000 0%, rgba(0, 0, 0, 0.35) 48%, transparent 84%);
}

.page-disclaimer .disc-hero__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58% 68% at 10% 4%, rgba(108, 75, 244, 0.3), transparent 68%),
    radial-gradient(48% 60% at 92% 100%, rgba(51, 225, 224, 0.16), transparent 72%),
    linear-gradient(180deg, rgba(5, 7, 15, 0.52) 0%, rgba(5, 7, 15, 0.92) 100%);
}

.page-disclaimer .disc-hero__body {
  position: relative;
}

.page-disclaimer .disc-hero .breadcrumb {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-disclaimer .disc-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--electric-cyan);
}

.page-disclaimer .disc-hero__title {
  margin: 0 0 20px;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.6vw, var(--fs-hero));
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--star-white);
}

.page-disclaimer .disc-hero__lead {
  margin: 0 0 clamp(26px, 4vw, 40px);
  max-width: 62ch;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--disc-soft);
}

.page-disclaimer .disc-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--disc-rule);
  border: 1px solid var(--disc-rule);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-disclaimer .disc-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 18px;
  background: rgba(11, 18, 38, 0.88);
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--star-white);
}

.page-disclaimer .disc-hero__factnum {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: 0.1em;
  color: var(--amber);
}

@media (min-width: 720px) {
  .page-disclaimer .disc-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-disclaimer .disc-hero {
    display: flex;
    align-items: center;
    min-height: 460px;
  }
  .page-disclaimer .disc-hero__img {
    object-position: 78% 50%;
  }
}

/* ---------- 章节跳转条 ---------- */
.page-disclaimer .disc-toc {
  background: rgba(5, 7, 15, 0.94);
  border-bottom: 1px solid var(--disc-rule);
}

@supports (backdrop-filter: blur(4px)) {
  .page-disclaimer .disc-toc {
    background: rgba(5, 7, 15, 0.78);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }
}

.page-disclaimer .disc-toc__inner {
  max-width: var(--disc-wrap);
  margin-inline: auto;
  padding: 10px var(--gutter);
  display: flex;
  align-items: center;
  gap: 14px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-disclaimer .disc-toc__inner::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .disc-toc__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: 0.22em;
  color: var(--star-grey);
}

.page-disclaimer .disc-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
}

.page-disclaimer .disc-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--disc-rule);
  border-radius: 999px;
  font-size: var(--fs-note);
  line-height: 1.35;
  color: var(--star-grey);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-disclaimer .disc-toc__link:hover,
.page-disclaimer .disc-toc__link:focus-visible {
  color: var(--star-white);
  border-color: rgba(51, 225, 224, 0.6);
  background: rgba(51, 225, 224, 0.08);
}

.page-disclaimer .disc-toc__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  color: var(--electric-cyan);
}

@media (min-width: 1024px) {
  .page-disclaimer .disc-toc {
    position: sticky;
    top: 0;
    z-index: 15;
  }
}

/* ---------- 正文画布 ---------- */
.page-disclaimer .disc-body {
  padding-top: clamp(4px, 1.5vw, 16px);
}

.page-disclaimer .disc-sec {
  padding: clamp(40px, 6vw, 76px) 0;
  border-top: 1px solid var(--disc-rule);
  scroll-margin-top: 96px;
}

.page-disclaimer .disc-sec:first-of-type {
  border-top: 0;
}

.page-disclaimer .disc-sec__head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-disclaimer .disc-sec__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: 0.24em;
  color: var(--electric-cyan);
}

.page-disclaimer .disc-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, var(--fs-h2));
  line-height: 1.16;
  letter-spacing: -0.008em;
  color: var(--star-white);
}

.page-disclaimer .disc-sec__prose {
  max-width: var(--disc-measure);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--disc-soft);
}

.page-disclaimer .disc-sec__prose p {
  margin: 0;
}

.page-disclaimer .disc-sec__prose > * + * {
  margin-top: 18px;
}

/* ---------- 列表 ---------- */
.page-disclaimer .disc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-disclaimer .disc-list li {
  position: relative;
  padding-left: 26px;
}

.page-disclaimer .disc-list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 11px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--electric-cyan);
  box-shadow: 0 0 10px rgba(51, 225, 224, 0.6);
}

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

/* ---------- 来源类型条目 ---------- */
.page-disclaimer .disc-src {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-disclaimer .disc-src__item {
  padding: 16px 18px 16px 22px;
  border: 1px solid var(--disc-rule);
  border-left: 2px solid rgba(51, 225, 224, 0.75);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: linear-gradient(100deg, rgba(16, 26, 56, 0.86) 0%, rgba(11, 18, 38, 0.42) 100%);
}

.page-disclaimer .disc-src__key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-disclaimer .disc-src__text {
  margin: 0;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--disc-soft);
}

@media (min-width: 700px) {
  .page-disclaimer .disc-src__item {
    display: grid;
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 0 20px;
  }
  .page-disclaimer .disc-src__key {
    margin-bottom: 0;
  }
}

/* ---------- 正文内联邮箱 ---------- */
.page-disclaimer .disc-mail {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 176, 58, 0.5);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-disclaimer .disc-mail:hover,
.page-disclaimer .disc-mail:focus-visible {
  color: #ffd08a;
  border-color: rgba(255, 208, 138, 0.95);
}

/* ---------- 订正渠道渐变光带 ---------- */
.page-disclaimer .disc-note {
  margin-top: clamp(30px, 4.5vw, 52px);
  max-width: var(--disc-measure);
}

.page-disclaimer .disc-note__inner {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 46px);
  border: 1px solid rgba(108, 75, 244, 0.36);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, rgba(58, 16, 48, 0.88) 0%, rgba(16, 26, 56, 0.92) 58%, rgba(14, 44, 40, 0.78) 100%);
}

.page-disclaimer .disc-note__inner::before {
  content: "";
  position: absolute;
  top: -60%;
  left: -12%;
  right: -12%;
  height: 240px;
  pointer-events: none;
  background:
    radial-gradient(46% 100% at 18% 0%, rgba(108, 75, 244, 0.52), transparent 70%),
    radial-gradient(38% 100% at 82% 0%, rgba(51, 225, 224, 0.34), transparent 72%);
}

.page-disclaimer .disc-note__eyebrow {
  position: relative;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  letter-spacing: 0.24em;
  color: var(--electric-cyan);
}

.page-disclaimer .disc-note__title {
  position: relative;
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.2;
  color: var(--star-white);
}

.page-disclaimer .disc-note__text {
  position: relative;
  margin: 0 0 22px;
  max-width: 56ch;
  font-size: var(--fs-note);
  line-height: var(--lh-note);
  color: var(--disc-soft);
}

.page-disclaimer .disc-note__mail {
  position: relative;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.5vw, 20px);
  line-height: 1.5;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 176, 58, 0.55);
  word-break: break-all;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), text-shadow 0.25s var(--ease);
}

.page-disclaimer .disc-note__mail:hover,
.page-disclaimer .disc-note__mail:focus-visible {
  color: #ffd08a;
  border-color: rgba(255, 208, 138, 0.95);
  text-shadow: 0 0 16px rgba(255, 176, 58, 0.55);
}

/* ---------- 页末指引 ---------- */
.page-disclaimer .disc-next {
  padding: clamp(34px, 5vw, 56px) 0 clamp(48px, 7vw, 84px);
  border-top: 1px solid var(--disc-rule);
}

.page-disclaimer .disc-next__title {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: var(--lh-index);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--star-grey);
}

.page-disclaimer .disc-next__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-disclaimer .disc-next__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--disc-rule);
  border-radius: 999px;
  font-size: var(--fs-note);
  line-height: 1.4;
  color: var(--star-grey);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-disclaimer .disc-next__link::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  color: var(--electric-cyan);
  transition: transform 0.2s var(--ease);
}

.page-disclaimer .disc-next__link:hover,
.page-disclaimer .disc-next__link:focus-visible {
  color: var(--star-white);
  border-color: rgba(51, 225, 224, 0.55);
  background: rgba(51, 225, 224, 0.07);
}

.page-disclaimer .disc-next__link:hover::after,
.page-disclaimer .disc-next__link:focus-visible::after {
  transform: translateX(3px);
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-toc__link,
  .page-disclaimer .disc-mail,
  .page-disclaimer .disc-note__mail,
  .page-disclaimer .disc-next__link,
  .page-disclaimer .disc-next__link::after {
    transition: none;
  }
}