/* ===== 使用说明 /usage/ 页面专属样式 ===== */

.page-disclaimer {
  background: var(--sand);
  color: var(--ink);
}

.page-disclaimer [id] {
  scroll-margin-top: 108px;
}

.page-disclaimer .usage-inline-link {
  color: var(--lake);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-disclaimer .usage-inline-link:hover {
  color: var(--sunset);
}

/* --- 面包屑 --- */
.page-disclaimer .crumbs {
  padding-block: clamp(14px, 2.6vw, 24px) 0;
}

/* --- 首屏 --- */
.page-disclaimer .usage-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(22px, 4vw, 46px) clamp(42px, 6.5vw, 82px);
  background: var(--sand);
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  right: -18%;
  bottom: 4%;
  width: 66%;
  height: 40%;
  background: var(--lake);
  opacity: 0.1;
  transform: skewX(-13deg);
  z-index: -1;
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: center;
}

.page-disclaimer .usage-hero__lede {
  position: relative;
  z-index: 1;
}

.page-disclaimer .usage-hero__title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(38px, 6.6vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 12px 0 0;
  color: var(--ink);
}

.page-disclaimer .usage-hero__text {
  margin: 18px 0 0;
  font-size: clamp(17px, 1.7vw, 20px);
  line-height: 1.78;
  max-width: 36ch;
  color: var(--ink);
}

.page-disclaimer .usage-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-disclaimer .usage-hero__figure {
  margin: 0;
  position: relative;
}

.page-disclaimer .usage-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--rule);
  box-shadow: 0 24px 44px -30px rgba(42, 32, 24, 0.78);
}

.page-disclaimer .usage-hero__caption {
  margin-top: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--ink);
  opacity: 0.66;
}

/* --- 章节贴纸目录 --- */
.page-disclaimer .usage-map {
  background: var(--cream);
  border-block: 1px solid var(--rule);
  padding-block: 14px;
}

.page-disclaimer .usage-map__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.page-disclaimer .usage-map__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--lake);
  border-right: 1px solid var(--rule);
  padding-right: 14px;
}

.page-disclaimer .usage-map__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .usage-map__chip {
  display: inline-block;
  padding: 6px 13px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--lake-deep);
  background: var(--sand);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-disclaimer .usage-map__chip:hover,
.page-disclaimer .usage-map__chip:focus-visible {
  background: var(--lake);
  color: var(--cream);
  transform: translateY(-2px);
}

/* --- 通用区块 --- */
.page-disclaimer .usage-section {
  padding-block: clamp(44px, 7vw, 84px);
}

.page-disclaimer .usage-section--tint {
  background: var(--cream);
  border-block: 1px solid var(--rule);
}

.page-disclaimer .usage-head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(26px, 4vw, 46px);
  max-width: 62ch;
}

.page-disclaimer .usage-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cream);
  background: var(--lake);
  transform: rotate(-3deg);
}

.page-disclaimer .usage-title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

.page-disclaimer .usage-lede {
  margin: 0;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.78;
  color: var(--ink);
}

.page-disclaimer .usage-foot-note {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  opacity: 0.82;
}

/* --- 横向色带停顿 --- */
.page-disclaimer .usage-band {
  height: 12px;
  background: repeating-linear-gradient(
    115deg,
    var(--lake) 0 24px,
    var(--sunset) 24px 38px,
    var(--barley) 38px 52px,
    var(--sunset-soft) 52px 66px,
    var(--rule) 66px 80px
  );
  opacity: 0.88;
}

/* --- 适用范围卡片 --- */
.page-disclaimer .usage-cards {
  display: grid;
  gap: var(--gap);
}

.page-disclaimer .usage-card {
  position: relative;
  background: var(--cream);
  border: 1px solid var(--rule);
  padding: clamp(20px, 2.6vw, 28px);
  box-shadow: 0 16px 30px -26px rgba(42, 32, 24, 0.72);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-disclaimer .usage-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 54px;
  height: 4px;
  background: var(--sunset);
}

.page-disclaimer .usage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.page-disclaimer .usage-card__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--lake);
}

.page-disclaimer .usage-card__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.35;
  margin: 8px 0 10px;
  color: var(--ink);
}

.page-disclaimer .usage-card__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink);
}

/* --- 账户与栏目条文 --- */
.page-disclaimer .usage-rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-disclaimer .usage-rule {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2vw, 24px);
  align-items: start;
  background: var(--cream);
  border: 1px solid var(--rule);
  border-left: 5px solid var(--lake);
  padding: clamp(18px, 2.4vw, 26px);
  box-shadow: 0 16px 30px -28px rgba(42, 32, 24, 0.7);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-left-color 0.2s var(--ease);
}

.page-disclaimer .usage-rule:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-left-color: var(--sunset);
}

.page-disclaimer .usage-rule__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  flex: none;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cream);
  background: var(--lake);
}

.page-disclaimer .usage-rule__body {
  min-width: 0;
}

.page-disclaimer .usage-rule__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-disclaimer .usage-rule__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink);
}

.page-disclaimer .usage-rule__stage {
  display: inline-block;
  margin-top: 12px;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--barley);
  border: 1px solid var(--barley);
  border-radius: var(--radius);
  background: rgba(78, 122, 56, 0.08);
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-disclaimer .usage-rule:hover .usage-rule__stage {
  background: var(--barley);
  color: var(--cream);
}

/* --- 费用查看分段 --- */
.page-disclaimer .usage-seg {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-disclaimer .usage-costpanel {
  background: var(--sand);
  border: 1px solid var(--rule);
  border-top: 4px solid var(--sunset);
  padding: clamp(22px, 3vw, 34px);
  display: grid;
  gap: 14px;
  max-width: 78ch;
  box-shadow: 0 16px 32px -28px rgba(42, 32, 24, 0.7);
}

.page-disclaimer .usage-costpanel + .usage-costpanel {
  margin-top: clamp(16px, 2.4vw, 24px);
}

.page-disclaimer .usage-costpanel__title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.3;
  margin: 0;
  color: var(--ink);
}

.page-disclaimer .usage-costpanel__text {
  margin: 0;
  font-size: 17px;
  line-height: 1.82;
  color: var(--ink);
}

.page-disclaimer .usage-costpanel__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-disclaimer .usage-costpanel__list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

.page-disclaimer .usage-costpanel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  background: var(--sunset);
}

/* --- 引用与转载 --- */
.page-disclaimer .usage-cite {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-disclaimer .usage-cite__col {
  background: var(--sand);
  border: 1px solid var(--rule);
  padding: clamp(20px, 2.6vw, 28px);
}

.page-disclaimer .usage-cite__head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.35;
  margin: 0 0 16px;
  color: var(--ink);
}

.page-disclaimer .usage-cite__dot {
  width: 12px;
  height: 12px;
  flex: none;
  background: var(--barley);
  transform: rotate(45deg);
}

.page-disclaimer .usage-cite__col--need .usage-cite__dot {
  background: var(--clay);
}

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

.page-disclaimer .usage-cite__list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

.page-disclaimer .usage-cite__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  background: var(--rule);
}

.page-disclaimer .usage-cite__note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 18px 22px;
  background: var(--lake-deep);
  color: var(--cream);
  border: 1px solid var(--lake-deep);
  font-size: 16px;
  line-height: 1.78;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
}

.page-disclaimer .usage-cite__note strong {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.04em;
  color: var(--cream);
}

/* --- 变更通知卡片 --- */
.page-disclaimer .usage-notices {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-disclaimer .usage-notice {
  background: var(--cream);
  border: 1px solid var(--rule);
  border-top: 6px solid var(--sunset-soft);
  padding: clamp(20px, 2.6vw, 28px);
  box-shadow: 0 18px 32px -28px rgba(42, 32, 24, 0.74);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-disclaimer .usage-notice:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.page-disclaimer .usage-notice__tag {
  display: inline-block;
  padding: 4px 11px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: var(--sunset-soft);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.page-disclaimer .usage-notice__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.38;
  margin: 14px 0 10px;
  color: var(--ink);
}

.page-disclaimer .usage-notice__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink);
}

/* --- 处理与申诉 --- */
.page-disclaimer .usage-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-disclaimer .usage-step {
  background: var(--sand);
  border: 1px solid var(--rule);
  border-top: 5px solid var(--lake);
  padding: clamp(20px, 2.6vw, 26px);
  box-shadow: 0 16px 30px -28px rgba(42, 32, 24, 0.7);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-disclaimer .usage-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
}

.page-disclaimer .usage-step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--lake);
}

.page-disclaimer .usage-step__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
  margin: 12px 0 8px;
  color: var(--ink);
}

.page-disclaimer .usage-step__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink);
}

.page-disclaimer .usage-appeal-foot {
  margin-top: clamp(26px, 4vw, 42px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid var(--rule);
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-disclaimer .usage-appeal-foot__label {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--lake);
}

.page-disclaimer .usage-appeal-foot__value {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ink);
  word-break: break-word;
}

.page-disclaimer .usage-appeal-foot__note {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
  opacity: 0.84;
  max-width: 62ch;
}

.page-disclaimer .usage-appeal-foot__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: start;
}

/* ===== 响应式 ===== */
@media (min-width: 780px) {
  .page-disclaimer .usage-cards--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-disclaimer .usage-cards--3 > :nth-child(2) {
    margin-top: 34px;
  }

  .page-disclaimer .usage-cards--3 > :nth-child(3) {
    margin-top: 16px;
  }

  .page-disclaimer .usage-cite {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-disclaimer .usage-notices {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-disclaimer .usage-notices > :nth-child(2) {
    margin-top: 40px;
  }

  .page-disclaimer .usage-notices > :nth-child(3) {
    margin-top: 18px;
  }

  .page-disclaimer .usage-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .usage-appeal-foot {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 880px) {
  .page-disclaimer .usage-rule {
    width: 100%;
  }

  .page-disclaimer .usage-rule:nth-child(even) {
    width: 74%;
    margin-left: auto;
  }

  .page-disclaimer .usage-rule:nth-child(even) .usage-rule__no {
    background: var(--barley);
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-hero {
    padding-block: clamp(26px, 4.4vw, 52px) clamp(52px, 7vw, 96px);
  }

  .page-disclaimer .usage-hero::before {
    top: -16%;
    right: -8%;
    bottom: auto;
    width: 50%;
    height: 132%;
    background: linear-gradient(155deg, var(--lake) 0%, var(--lake-deep) 100%);
    opacity: 0.96;
  }

  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.84fr);
  }

  .page-disclaimer .usage-hero__figure {
    padding-top: 10px;
  }
}

@media (max-width: 620px) {
  .page-disclaimer .usage-map__inner {
    flex-wrap: nowrap;
    align-items: flex-start;
  }

  .page-disclaimer .usage-map__label {
    flex: none;
    padding-top: 6px;
  }

  .page-disclaimer .usage-map__list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
    scrollbar-width: thin;
  }

  .page-disclaimer .usage-map__chip {
    white-space: nowrap;
  }

  .page-disclaimer .usage-rule {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-disclaimer .usage-rule__no {
    width: 44px;
    height: 44px;
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-card,
  .page-disclaimer .usage-rule,
  .page-disclaimer .usage-notice,
  .page-disclaimer .usage-step,
  .page-disclaimer .usage-map__chip,
  .page-disclaimer .usage-rule__stage {
    transition: none;
  }

  .page-disclaimer .usage-card:hover,
  .page-disclaimer .usage-rule:hover,
  .page-disclaimer .usage-notice:hover,
  .page-disclaimer .usage-step:hover,
  .page-disclaimer .usage-map__chip:hover {
    transform: none;
  }
}