.page-disclaimer {
  --usage-num-w: 44px;
  padding-block: clamp(26px, 4.5vw, 52px) clamp(56px, 8vw, 100px);
}

/* ---------- 顶部路径与首屏 ---------- */
.page-disclaimer .crumbs {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-disclaimer .usage-hero {
  max-width: 940px;
}

.page-disclaimer .usage-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: clamp(29px, 5.6vw, 54px);
  line-height: 1.12;
  color: var(--bone);
  margin: 14px 0 0;
}

.page-disclaimer .usage-lede {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .usage-lede strong {
  color: var(--bone);
  font-weight: 600;
}

.page-disclaimer .usage-hero__media {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
}

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

/* ---------- 章节通用 ---------- */
.page-disclaimer .usage-section {
  margin-top: clamp(44px, 6.5vw, 84px);
}

.page-disclaimer .usage-head {
  max-width: 760px;
}

.page-disclaimer .usage-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.015em;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.22;
  color: var(--bone);
  margin: 10px 0 0;
}

.page-disclaimer .usage-head__note {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 01 概览 ---------- */
.page-disclaimer .usage-intro__body {
  margin-top: clamp(20px, 3vw, 30px);
  display: grid;
  gap: 24px;
}

.page-disclaimer .usage-intro__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-disclaimer .usage-keypoints li {
  padding: 13px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--moss);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

/* ---------- 02 两组清单 ---------- */
.page-disclaimer .usage-pair {
  margin-top: clamp(20px, 3vw, 30px);
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
}

.page-disclaimer .usage-col {
  padding: 24px 0 0;
}

.page-disclaimer .usage-col + .usage-col {
  margin-top: 26px;
  padding-top: 28px;
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .usage-col__title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(18px, 2.2vw, 21px);
  color: var(--bone);
  margin: 0;
}

.page-disclaimer .usage-col__title::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  vertical-align: 2px;
  background: var(--moss);
  transform: rotate(45deg);
}

.page-disclaimer .usage-col + .usage-col .usage-col__title::before {
  background: var(--signal);
}

.page-disclaimer .usage-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-disclaimer .usage-list li {
  display: grid;
  grid-template-columns: var(--usage-num-w) minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 12px 10px 12px 0;
  border-radius: var(--radius);
  transition: background var(--speed) ease, box-shadow var(--speed) ease;
}

.page-disclaimer .usage-list li:hover {
  background: var(--lift);
  box-shadow: inset 2px 0 0 var(--signal);
}

.page-disclaimer .usage-num {
  display: block;
  padding: 8px 0 7px;
  text-align: center;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--mist);
  background: rgba(46, 125, 107, 0.28);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  transition: background var(--speed) ease, color var(--speed) ease;
}

.page-disclaimer .usage-list li:hover .usage-num {
  background: var(--signal);
  color: var(--ink);
}

.page-disclaimer .usage-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-disclaimer .usage-list strong {
  color: var(--bone);
  font-weight: 600;
}

/* ---------- 03 / 04 面板 ---------- */
.page-disclaimer .usage-panel {
  margin-top: clamp(18px, 2.6vw, 26px);
  padding: clamp(20px, 3vw, 30px);
}

.page-disclaimer .usage-panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .usage-panel .btn {
  margin-top: 18px;
}

.page-disclaimer .usage-scope {
  margin-top: clamp(18px, 2.6vw, 26px);
  display: grid;
  gap: 14px;
}

.page-disclaimer .usage-scope .usage-panel {
  margin-top: 0;
}

.page-disclaimer .usage-scope h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.01em;
  font-size: 17px;
  color: var(--bone);
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

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

.page-disclaimer .usage-scope li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-disclaimer .usage-scope li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--moss-lit);
}

.page-disclaimer .usage-panel--yours li::before {
  background: var(--amber);
}

/* ---------- 05 反馈条 ---------- */
.page-disclaimer .usage-feedback__box {
  margin-top: clamp(18px, 2.6vw, 26px);
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--panel);
  border: 1px solid rgba(255, 107, 44, 0.55);
  border-left: 3px solid var(--signal);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-disclaimer .usage-feedback__box h2 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  font-size: clamp(21px, 2.8vw, 27px);
  line-height: 1.25;
  color: var(--bone);
  margin: 10px 0 0;
}

.page-disclaimer .usage-feedback__box > p {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .usage-contact-line {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
}

.page-disclaimer .usage-contact-line span {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--bone);
  overflow-wrap: anywhere;
}

.page-disclaimer .usage-feedback__actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-disclaimer .usage-feedback__meta {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}

.page-disclaimer .usage-feedback__meta a {
  color: var(--moss-lit);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer .usage-feedback__meta a:hover {
  color: var(--signal);
}

/* ---------- 响应式 ---------- */
@media (min-width: 820px) {
  .page-disclaimer .usage-scope {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}

@media (min-width: 880px) {
  .page-disclaimer .usage-intro__body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: start;
  }

  .page-disclaimer .usage-pair {
    grid-template-columns: 1fr 1fr;
  }

  .page-disclaimer .usage-col {
    padding: 30px 0 0;
  }

  .page-disclaimer .usage-col + .usage-col {
    margin-top: 0;
    padding-top: 30px;
    padding-left: 40px;
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .page-disclaimer .usage-col:first-child {
    padding-right: 40px;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer .usage-hero h1 {
    max-width: 16ch;
  }
}
<<<END>>>