.page-disclaimer {
  --dsp-text: #D3D9E6;
  --dsp-rule: rgba(44, 53, 82, 0.72);
}

.page-disclaimer .agreement-top {
  padding-top: clamp(18px, 2.6vw, 34px);
}

/* 顶部横栏视觉 */
.page-disclaimer .agreement-banner {
  margin: clamp(18px, 3vw, 38px) 0 0;
  padding: 0;
  border-block: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  background: var(--ink-800);
}

.page-disclaimer .agreement-banner img {
  display: block;
  width: 100%;
  height: clamp(150px, 26vw, 400px);
  object-fit: cover;
  opacity: 0.82;
}

.page-disclaimer .agreement-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(6, 8, 15, 0.88) 10%, rgba(14, 58, 71, 0.3) 58%, rgba(53, 230, 240, 0.12) 100%);
  pointer-events: none;
}

/* 页头 */
.page-disclaimer .agreement-head {
  padding-block: clamp(34px, 5.6vw, 84px) clamp(22px, 3vw, 40px);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .page-head__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--bone);
  max-width: 18ch;
}

.page-disclaimer .page-head__lede {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--dsp-text);
}

/* 条款索引 */
.page-disclaimer .agreement-index {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: clamp(26px, 3.6vw, 46px);
  border-top: 1px solid var(--line);
}

.page-disclaimer .agreement-index__item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 2px;
  border-bottom: 1px solid var(--dsp-rule);
  color: var(--mist);
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
  transition: color 0.22s ease, padding-left 0.22s ease, background-color 0.22s ease;
}

.page-disclaimer .agreement-index__item .num {
  font-size: 12.5px;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.page-disclaimer .agreement-index__item:hover,
.page-disclaimer .agreement-index__item:focus-visible {
  color: var(--bone);
  padding-left: 12px;
  background-color: rgba(14, 58, 71, 0.35);
}

/* 条款主体 */
.page-disclaimer .agreement-body {
  padding-block: clamp(34px, 5vw, 78px) clamp(40px, 6vw, 96px);
}

.page-disclaimer .clause {
  border-top: 1px solid var(--line);
  padding-block: clamp(26px, 4.2vw, 52px);
  scroll-margin-top: 96px;
}

.page-disclaimer .agreement-body > .clause:first-child {
  border-top: none;
  padding-top: 0;
}

.page-disclaimer .clause__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px 16px;
  align-items: baseline;
}

.page-disclaimer .clause__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(15px, 1.5vw, 18px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 0.28em;
}

.page-disclaimer .clause__title {
  margin: 0;
  font-size: clamp(19px, 2.5vw, 30px);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-disclaimer .clause__body {
  margin-top: clamp(16px, 2vw, 26px);
  display: grid;
  gap: 1.1em;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--dsp-text);
}

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

.page-disclaimer .clause__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* 规则列表 */
.page-disclaimer .rule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--dsp-rule);
}

.page-disclaimer .rule-list li {
  position: relative;
  padding: 13px 0 13px 22px;
  border-bottom: 1px solid var(--dsp-rule);
  font-size: 15px;
  line-height: 1.75;
  color: var(--dsp-text);
}

.page-disclaimer .rule-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 23px;
  width: 12px;
  height: 1px;
  background: var(--amber);
}

/* 标注格式示例 */
.page-disclaimer .cite-sample {
  background: var(--ink-800);
  border-left: 2px solid var(--cyan);
  padding: 14px clamp(14px, 2.4vw, 22px);
  display: grid;
  gap: 4px;
  overflow-x: auto;
}

.page-disclaimer .cite-sample p {
  display: flex;
  gap: 12px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.95;
  letter-spacing: 0.01em;
  color: var(--bone);
  white-space: nowrap;
}

.page-disclaimer .cite-sample p span {
  flex: 0 0 3.6em;
  color: var(--cyan);
}

/* 条款内常见疑问 */
.page-disclaimer .clause__faq {
  margin: 2px 0 0;
  border-top: 1px solid var(--dsp-rule);
  padding-top: 4px;
}

.page-disclaimer .clause__faq summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  cursor: pointer;
  list-style: none;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--mist);
  transition: color 0.2s ease;
}

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

.page-disclaimer .clause__faq summary:hover,
.page-disclaimer .clause__faq summary:focus-visible,
.page-disclaimer .clause__faq[open] summary {
  color: var(--bone);
}

.page-disclaimer .clause__faq summary::before {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--cyan);
}

.page-disclaimer .clause__faq[open] summary::before {
  content: "－";
}

.page-disclaimer .clause__faq ul {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: grid;
  gap: 12px;
}

.page-disclaimer .clause__faq li {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--dsp-text);
  padding-left: 14px;
  border-left: 1px solid var(--dsp-rule);
}

.page-disclaimer .clause__faq li b {
  display: block;
  color: var(--bone);
  font-weight: 600;
}

/* 右侧注释栏 */
.page-disclaimer .clause__aside {
  margin-top: clamp(20px, 3vw, 30px);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-left: 1px solid var(--dsp-rule);
  padding-left: 14px;
}

.page-disclaimer .clause__tag {
  writing-mode: vertical-rl;
  text-orientation: upright;
  flex: 0 0 auto;
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.28em;
  color: var(--cyan);
}

.page-disclaimer .clause__aside-body p {
  margin: 0 0 8px;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mist);
}

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

.page-disclaimer .clause__aside-note {
  padding-top: 8px;
  border-top: 1px solid var(--dsp-rule);
  color: var(--mist);
  opacity: 0.92;
}

/* 联系信息块 */
.page-disclaimer .contact-block {
  border: 1px solid var(--line);
}

.page-disclaimer .contact-block__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 13px clamp(14px, 2.4vw, 22px);
  border-bottom: 1px solid var(--dsp-rule);
}

.page-disclaimer .contact-block__row:last-child {
  border-bottom: none;
}

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

.page-disclaimer .contact-block__v {
  font-size: 15px;
  line-height: 1.6;
  color: var(--bone);
  word-break: break-word;
}

.page-disclaimer .contact-block__v.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: var(--amber);
}

/* 页尾提示 */
.page-disclaimer .agreement-foot {
  border-top: 1px solid var(--line);
  padding-top: clamp(24px, 3.4vw, 40px);
  display: grid;
  gap: 18px;
  justify-items: start;
}

.page-disclaimer .agreement-foot p {
  margin: 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 桌面端栅格 */
@media (min-width: 720px) {
  .page-disclaimer .agreement-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 48px);
  }

  .page-disclaimer .contact-block__row {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-disclaimer .agreement-foot {
    grid-template-columns: minmax(0, 1fr) auto;
    justify-items: stretch;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .agreement-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .clause {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(180px, 232px);
    grid-template-areas:
      "head aside"
      "body aside";
    column-gap: clamp(28px, 5vw, 88px);
    align-items: start;
  }

  .page-disclaimer .clause__head {
    grid-area: head;
  }

  .page-disclaimer .clause__body {
    grid-area: body;
    max-width: 36em;
  }

  .page-disclaimer .clause__aside {
    grid-area: aside;
    margin-top: 0;
    padding-top: 6px;
    position: sticky;
    top: 96px;
  }
}
</main>