.page-disclaimer {
  --zd-rule: rgba(92, 104, 132, 0.32);
  --zd-well: #0C1838;
  --zd-line-hard: rgba(127, 230, 210, 0.24);
  position: relative;
  background-color: var(--night);
  background-image: repeating-linear-gradient(
    118deg,
    rgba(127, 230, 210, 0.035) 0 1px,
    transparent 1px 16px
  );
  color: var(--mist);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-disclaimer figure {
  margin: 0;
}

.page-disclaimer a:not(.btn) {
  color: var(--teal-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 230, 210, 0.42);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-disclaimer a:not(.btn):hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

/* ---------- 首屏 ---------- */

.page-disclaimer .usage-hero {
  position: relative;
  padding: 26px 0 0;
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--teal) 0%, var(--violet) 58%, var(--ember) 100%);
}

.page-disclaimer .usage-hero__inner {
  padding-top: 20px;
  padding-bottom: 24px;
}

.page-disclaimer .usage-hero__kicker {
  margin: 20px 0 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--teal);
}

.page-disclaimer .usage-hero h1 {
  margin: 0;
  font-size: clamp(1.75rem, 6.4vw, 2.9rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--snow);
}

.page-disclaimer .usage-hero h1::after {
  content: "";
  display: block;
  width: 64px;
  height: 3px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--teal), var(--violet));
}

.page-disclaimer .usage-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .usage-hero__figure {
  margin: 26px 0 0;
  width: 100%;
}

.page-disclaimer .usage-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 条款区块：左右交替 ---------- */

.page-disclaimer .clause {
  padding: 40px 0 0;
}

.page-disclaimer .clause__grid {
  display: grid;
  gap: 22px;
}

.page-disclaimer .clause__copy {
  position: relative;
  padding: 26px 20px 24px;
  background: var(--panel);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%
  );
}

.page-disclaimer .clause__copy::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 68px;
  background: linear-gradient(180deg, var(--teal), rgba(23, 195, 162, 0));
}

.page-disclaimer .section-no {
  position: absolute;
  top: 2px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.06em;
  color: var(--snow);
  opacity: 0.12;
  pointer-events: none;
  user-select: none;
}

.page-disclaimer .clause__copy h2 {
  margin: 0 0 14px;
  max-width: 20ch;
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-disclaimer .clause__copy p {
  margin: 0 0 12px;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--mist);
}

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

/* ---------- 可勾选清单 ---------- */

.page-disclaimer .tick-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-disclaimer .tick-list li {
  position: relative;
  padding-left: 28px;
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-disclaimer .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.28em;
  width: 16px;
  height: 16px;
  border: 1px solid rgba(23, 195, 162, 0.6);
  background: rgba(23, 195, 162, 0.12);
}

.page-disclaimer .tick-list li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 0.52em;
  width: 4px;
  height: 8px;
  border-right: 2px solid var(--teal-soft);
  border-bottom: 2px solid var(--teal-soft);
  transform: rotate(45deg);
}

/* ---------- 折叠条款 ---------- */

.page-disclaimer .clause__fold {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--zd-rule);
}

.page-disclaimer .clause__fold > summary {
  position: relative;
  padding-right: 24px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--teal-soft);
}

.page-disclaimer .clause__fold > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .clause__fold > summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: -0.18em;
  font-size: 1.15rem;
  line-height: 1;
  color: var(--teal);
}

.page-disclaimer .clause__fold[open] > summary::after {
  content: "−";
}

.page-disclaimer .clause__fold-body {
  margin-top: 12px;
  padding: 14px;
  display: grid;
  gap: 8px;
  background: rgba(10, 19, 48, 0.55);
  border-left: 2px solid var(--teal);
}

.page-disclaimer .clause__copy .clause__fold-body p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 右侧信息面板 ---------- */

.page-disclaimer .clause__viz {
  position: relative;
  padding: 22px 20px 24px;
  background: linear-gradient(155deg, var(--panel-deep) 0%, var(--panel) 100%);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%
  );
}

.page-disclaimer .clause__viz::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), rgba(23, 195, 162, 0) 72%);
}

.page-disclaimer .viz-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--teal);
}

.page-disclaimer .viz-stack {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-disclaimer .viz-stack li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--zd-rule);
}

.page-disclaimer .viz-stack li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .viz-stack__num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--snow);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .viz-stack__text {
  font-size: 0.83rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 引用样例 ---------- */

.page-disclaimer .cite-sample {
  display: grid;
  gap: 10px;
  padding: 16px;
  background: rgba(10, 19, 48, 0.68);
  border-left: 2px solid var(--teal);
}

.page-disclaimer .cite-sample__line {
  margin: 0;
  display: grid;
  grid-template-columns: 3.6em minmax(0, 1fr);
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--teal-soft);
  word-break: break-word;
}

.page-disclaimer .cite-sample__key {
  color: var(--mist);
  letter-spacing: 0.08em;
}

/* ---------- 三种入口分工 ---------- */

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

.page-disclaimer .cap-item {
  padding: 14px 14px 15px;
  background: rgba(10, 19, 48, 0.52);
  border-left: 2px solid var(--violet);
}

.page-disclaimer .cap-item__name {
  margin: 0 0 8px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-disclaimer .cap-item__desc {
  margin: 0 0 4px;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--mist);
}

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

.page-disclaimer .cap-item__desc b {
  font-weight: 600;
  color: var(--teal-soft);
}

/* ---------- 更新节奏时间线 ---------- */

.page-disclaimer .pulse-line {
  position: relative;
  margin: 0;
  padding: 0 0 0 20px;
  list-style: none;
  display: grid;
  gap: 16px;
  border-left: 1px solid rgba(23, 195, 162, 0.4);
}

.page-disclaimer .pulse-line li {
  position: relative;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-disclaimer .pulse-line li::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 0.35em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--night);
  border: 2px solid var(--teal);
}

.page-disclaimer .pulse-line b {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--teal);
}

/* ---------- 收束色带 ---------- */

.page-disclaimer .usage-band {
  margin-top: 46px;
  padding: 34px 0 46px;
  border-top: 1px solid var(--zd-line-hard);
  background:
    linear-gradient(
      102deg,
      rgba(23, 195, 162, 0.16) 0%,
      rgba(91, 75, 224, 0.2) 46%,
      rgba(10, 19, 48, 0) 100%
    ),
    var(--zd-well);
}

.page-disclaimer .usage-band__inner {
  display: grid;
  gap: 22px;
}

.page-disclaimer .usage-band__title {
  margin: 0 0 10px;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-disclaimer .usage-band__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.89rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .usage-band__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 桌面栅格 ---------- */

@media (min-width: 900px) {
  .page-disclaimer .usage-hero {
    padding-top: 34px;
  }

  .page-disclaimer .usage-hero__figure {
    margin-top: 34px;
  }

  .page-disclaimer .clause {
    padding-top: 56px;
  }

  .page-disclaimer .clause__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 44px;
    align-items: start;
  }

  .page-disclaimer .clause--flip .clause__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  .page-disclaimer .clause--flip .clause__copy {
    order: 2;
  }

  .page-disclaimer .clause--flip .clause__viz {
    order: 1;
  }

  .page-disclaimer .clause__copy {
    padding: 32px 30px 30px;
  }

  .page-disclaimer .clause__viz {
    padding: 28px 26px 30px;
  }

  .page-disclaimer .usage-band__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 34px;
  }

  .page-disclaimer .usage-band__links {
    max-width: 340px;
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer a:not(.btn) {
    transition: none;
  }
}