.page-disclaimer {
  --pd-surface: rgba(27, 36, 56, 0.55);
  --pd-line: var(--steel);
  position: relative;
  overflow-x: clip;
  padding-bottom: clamp(44px, 8vw, 88px);
}

.page-disclaimer .breadcrumb {
  padding-top: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-mute);
}

.page-disclaimer .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--steel);
}

.page-disclaimer .breadcrumb a {
  color: var(--text-soft);
  text-decoration: none;
  transition: color var(--t-fast);
}

.page-disclaimer .breadcrumb a:hover,
.page-disclaimer .breadcrumb a:focus-visible {
  color: var(--blue);
}

/* ---------- 首屏 ---------- */

.page-disclaimer__hero {
  position: relative;
  isolation: isolate;
  padding: clamp(28px, 5.5vw, 52px) 0 clamp(32px, 6.5vw, 60px);
}

.page-disclaimer__hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -20%;
  right: -16%;
  width: min(700px, 84vw);
  height: 130%;
  background: linear-gradient(145deg, rgba(61, 139, 255, 0.36), rgba(77, 240, 138, 0.15) 58%, rgba(7, 11, 22, 0) 84%);
  clip-path: polygon(32% 0, 100% 0, 100% 100%, 0 78%);
  pointer-events: none;
}

.page-disclaimer__hero-inner {
  position: relative;
}

.page-disclaimer__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--green);
  transform: skewX(-6deg);
}

.page-disclaimer__kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--green);
}

.page-disclaimer__title {
  margin: 0 0 20px;
  max-width: 20ch;
  font-size: clamp(34px, 8vw, 78px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--white);
}

.page-disclaimer__lede {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.85;
  color: var(--text-soft);
}

.page-disclaimer__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.page-disclaimer__jump a {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border: 1px solid var(--steel);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-soft);
  text-decoration: none;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}

.page-disclaimer__jump a:first-child:hover,
.page-disclaimer__jump a:first-child:focus-visible {
  color: var(--ink);
  background: var(--green);
  border-color: var(--green);
}

.page-disclaimer__jump a:last-child:hover,
.page-disclaimer__jump a:last-child:focus-visible {
  color: var(--ink);
  background: var(--orange);
  border-color: var(--orange);
}

/* ---------- 配图 ---------- */

.page-disclaimer__figure {
  margin: 0 0 clamp(30px, 5.5vw, 52px);
}

.page-disclaimer__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border: 1px solid var(--steel);
  border-radius: var(--radius-lg);
  background: var(--ink-2);
}

.page-disclaimer__figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--text-mute);
}

/* ---------- 章节通用 ---------- */

.page-disclaimer__section {
  margin-top: clamp(38px, 7vw, 72px);
  scroll-margin-top: 110px;
}

.rule-group {
  --pd-tone: var(--green);
}

.rule-group--consent {
  --pd-tone: var(--orange);
}

.rule-group__head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 22px;
}

.rule-group__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid currentColor;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--pd-tone);
}

.rule-group__badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 10px currentColor;
}

.page-disclaimer .section-title {
  margin: 0;
  font-size: clamp(22px, 4.4vw, 34px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

/* ---------- 规则清单 ---------- */

.rule-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.rule-item {
  display: grid;
  gap: 16px;
  padding: 26px 0;
  border-top: 1px solid var(--pd-line);
}

.rule-item:last-child {
  border-bottom: 1px solid var(--pd-line);
}

.rule-item__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--pd-tone);
  transform: skewX(-6deg);
}

.rule-item__title {
  margin: 0 0 10px;
  font-size: clamp(17px, 3.3vw, 20px);
  font-weight: 700;
  line-height: 1.36;
  color: var(--white);
}

.rule-item__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-soft);
}

.rule-item__text a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 139, 255, 0.4);
}

.rule-item__text a:hover {
  border-bottom-color: var(--blue);
}

.rule-item__demo {
  position: relative;
  margin: 0;
  padding: 14px 16px 15px 18px;
  border-left: 2px solid var(--pd-tone);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--pd-surface);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-soft);
  transition: background var(--t-fast), border-color var(--t-fast);
}

.rule-item__demo::before {
  content: "例";
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--pd-tone);
}

.rule-item:hover .rule-item__demo,
.rule-item:focus-within .rule-item__demo {
  background: rgba(27, 36, 56, 0.88);
}

/* ---------- 倾斜分隔 ---------- */

.page-disclaimer .rule-tilt {
  height: 1px;
  margin: clamp(34px, 6vw, 60px) 0 0;
  transform: rotate(-1.2deg);
  transform-origin: left center;
  background: linear-gradient(90deg, rgba(42, 53, 80, 0) 0%, var(--steel) 20%, var(--steel) 78%, rgba(42, 53, 80, 0) 100%);
}

.page-disclaimer .rule-tilt.is-key {
  background: linear-gradient(90deg, rgba(77, 240, 138, 0.9) 0%, rgba(77, 240, 138, 0.25) 62%, rgba(77, 240, 138, 0) 100%);
}

/* ---------- 署名条款 ---------- */

.clause-list {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--steel);
  border: 1px solid var(--steel);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.clause-list__row {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
  background: var(--ink-2);
}

.clause-list__row dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--amber);
}

.clause-list__row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ---------- 要点列表 ---------- */

.note-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.note-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-soft);
}

.note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: 1px;
  background: var(--blue);
}

/* ---------- 设备提示 ---------- */

.device-note {
  border: 1px solid var(--steel);
  border-radius: var(--radius-md);
  background: linear-gradient(115deg, rgba(61, 139, 255, 0.16), rgba(14, 21, 38, 0.92) 62%);
  overflow: hidden;
}

.device-note > summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.device-note > summary::-webkit-details-marker {
  display: none;
}

.device-note > summary:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: -2px;
}

.device-note__icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--blue);
  border-radius: 50%;
  color: var(--blue);
}

.device-note__chev {
  flex: none;
  margin-left: auto;
  color: var(--text-mute);
  transition: transform var(--t-fast), color var(--t-fast);
}

.device-note[open] .device-note__chev {
  transform: rotate(90deg);
  color: var(--green);
}

.device-note__body {
  padding: 0 20px 22px;
  border-top: 1px solid var(--steel);
  padding-top: 18px;
}

.device-note__body .note-list li::before {
  background: var(--green);
}

/* ---------- 帮助入口 ---------- */

.help-grid {
  display: grid;
  gap: 14px;
}

.help-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 22px;
  border: 1px solid var(--steel);
  border-radius: var(--radius-md);
  background: rgba(27, 36, 56, 0.4);
  text-decoration: none;
  transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-fast);
}

.help-card__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--green);
}

.help-card__text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

.help-card__go {
  margin-top: 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
}

.help-card__go::after {
  content: " →";
}

.help-card:hover,
.help-card:focus-visible {
  border-color: var(--blue);
  background: rgba(61, 139, 255, 0.1);
  transform: translateY(-2px);
}

.page-disclaimer__footline {
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--steel);
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-mute);
}

.page-disclaimer__footline a {
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--steel);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-disclaimer__footline a:hover,
.page-disclaimer__footline a:focus-visible {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

/* ---------- 响应式 ---------- */

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

  .clause-list__row {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
    padding: 20px 24px;
  }

  .rule-group__head {
    flex-direction: row;
    align-items: center;
    gap: 18px;
  }
}

@media (min-width: 880px) {
  .rule-item {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(26px, 4vw, 60px);
    align-items: start;
    padding: 30px 0;
  }

  .rule-item:nth-child(even) .rule-item__body {
    order: 2;
  }

  .rule-item:nth-child(even) .rule-item__demo {
    order: 1;
  }

  .rule-item:nth-child(odd) .rule-item__demo {
    margin-top: 8px;
  }

  .page-disclaimer__lede {
    max-width: 56ch;
  }
}

@media (min-width: 1120px) {
  .page-disclaimer__hero {
    padding-bottom: clamp(48px, 6vw, 76px);
  }

  .page-disclaimer__figure {
    margin-bottom: clamp(44px, 5vw, 64px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer * {
    transition-duration: 1ms !important;
  }

  .page-disclaimer .help-card:hover,
  .page-disclaimer .help-card:focus-visible {
    transform: none;
  }
}