/* ===== 使用说明页 · page-disclaimer ===== */

.page-disclaimer {
  --dc-band-h: clamp(20px, 3vw, 34px);
  display: block;
  background: var(--ink-900);
  color: var(--body-text);
  font-family: var(--font-body);
}

.page-disclaimer .ht-container {
  position: relative;
  z-index: 1;
}

/* ---------- 首屏 ---------- */

.page-disclaimer .dc-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + clamp(22px, 4vw, 50px)) 0 clamp(36px, 5.5vw, 80px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(118deg, rgba(0, 229, 208, 0.075) 0%, rgba(0, 229, 208, 0) 44%),
    linear-gradient(300deg, rgba(168, 85, 247, 0.07) 0%, rgba(168, 85, 247, 0) 38%),
    var(--ink-900);
}

.page-disclaimer .dc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 112px);
  opacity: 0.55;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(158deg, rgba(0, 0, 0, 0.85), transparent 62%);
  mask-image: linear-gradient(158deg, rgba(0, 0, 0, 0.85), transparent 62%);
}

.page-disclaimer .dc-hero::after {
  content: "";
  position: absolute;
  right: -8%;
  bottom: -42%;
  width: clamp(260px, 42vw, 560px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 34%, rgba(0, 229, 208, 0.18), rgba(0, 229, 208, 0) 68%);
  pointer-events: none;
}

.page-disclaimer .dc-hero__wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
  margin-top: clamp(26px, 4vw, 46px);
}

.page-disclaimer .dc-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(40px, 9vw, 84px);
  font-weight: 700;
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--white);
  word-break: keep-all;
}

.page-disclaimer .dc-hero__title::after {
  content: "";
  display: block;
  width: clamp(64px, 12vw, 148px);
  height: 3px;
  margin-top: clamp(14px, 2vw, 22px);
  background: linear-gradient(90deg, var(--cyan), rgba(0, 229, 208, 0));
}

.page-disclaimer .dc-hero__lede {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--body-text);
  border-left: 1px solid var(--line-soft);
  padding-left: clamp(14px, 2vw, 24px);
}

.page-disclaimer .dc-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: clamp(18px, 2.4vw, 26px);
  padding-left: clamp(14px, 2vw, 24px);
}

.page-disclaimer .dc-jump__link {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-disclaimer .dc-jump__link:hover,
.page-disclaimer .dc-jump__link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(0, 229, 208, 0.06);
  outline: none;
}

/* ---------- 区块骨架 ---------- */

.page-disclaimer .dc-sec {
  position: relative;
  padding: clamp(44px, 6.5vw, 92px) 0 clamp(40px, 6vw, 84px);
}

.page-disclaimer .dc-sec--tint {
  background: linear-gradient(180deg, rgba(11, 18, 36, 0.92), rgba(5, 7, 15, 0.98));
}

.page-disclaimer .dc-sec--closing {
  background: linear-gradient(180deg, rgba(5, 7, 15, 1), rgba(11, 18, 36, 0.85));
}

.page-disclaimer .dc-sec__index {
  display: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--line-soft);
  text-transform: uppercase;
  white-space: nowrap;
}

.page-disclaimer .dc-sec__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 46px);
  padding-bottom: clamp(14px, 2vw, 22px);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .dc-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(25px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .dc-sec__note {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* 细网格带 */

.page-disclaimer .dc-band {
  height: var(--dc-band-h);
  margin: 0 clamp(16px, 4vw, 64px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 72px);
  opacity: 0.9;
}

/* ---------- 条目—解释两列 ---------- */

.page-disclaimer .dc-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.page-disclaimer .dc-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 28px) 0;
  border-top: 1px solid var(--line);
  transition: background-color 0.24s var(--ease);
}

.page-disclaimer .dc-row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .dc-row:hover {
  background: rgba(18, 27, 49, 0.5);
}

.page-disclaimer .dc-row__key {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-disclaimer .dc-row__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  flex: 0 0 auto;
}

.page-disclaimer .dc-row__name {
  font-family: var(--font-display);
  font-size: clamp(17px, 1.7vw, 20px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .dc-row__body {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-disclaimer .dc-row__body strong {
  color: var(--orange);
  font-weight: 600;
}

.page-disclaimer .dc-row--flag .dc-row__name {
  color: var(--orange);
}

.page-disclaimer .dc-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 208, 0.35);
  transition: border-color 0.2s var(--ease);
}

.page-disclaimer .dc-link:hover,
.page-disclaimer .dc-link:focus-visible {
  border-bottom-color: var(--cyan);
  outline: none;
}

/* ---------- 图形 ---------- */

.page-disclaimer .dc-figure {
  margin: 0 0 clamp(30px, 4.5vw, 54px);
  border: 1px solid var(--line);
  background: var(--ink-700);
  overflow: hidden;
}

.page-disclaimer .dc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-disclaimer .dc-figure__cap {
  padding: 12px clamp(14px, 2vw, 20px);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--muted);
}

/* ---------- 资源用途 ---------- */

.page-disclaimer .dc-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.page-disclaimer .dc-live {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.page-disclaimer .dc-res__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
}

.page-disclaimer .dc-res {
  position: relative;
  display: grid;
  align-content: start;
  gap: 12px;
  padding: clamp(18px, 2.2vw, 26px);
  border: 1px solid var(--line);
  border-top: 3px solid var(--line-soft);
  background: var(--ink-800);
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-disclaimer .dc-res[data-tags="csv"] {
  border-top-color: var(--cyan);
}

.page-disclaimer .dc-res[data-tags="json"] {
  border-top-color: var(--violet);
}

.page-disclaimer .dc-res[data-tags="png"] {
  border-top-color: var(--orange);
}

.page-disclaimer .dc-res:hover {
  background: var(--ink-700);
  transform: translateY(-2px);
}

.page-disclaimer .dc-res.is-hidden {
  display: none;
}

.page-disclaimer .dc-res__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.page-disclaimer .dc-res__fmt {
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--white);
}

.page-disclaimer .dc-res__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .dc-res__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-disclaimer .dc-res__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-disclaimer .dc-res__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-disclaimer .dc-res__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background: var(--cyan);
  opacity: 0.8;
}

.page-disclaimer .dc-res[data-tags="png"] .dc-res__list li::before {
  background: var(--orange);
}

.page-disclaimer .dc-res[data-tags="json"] .dc-res__list li::before {
  background: var(--violet);
}

/* ---------- 断点 ---------- */

@media (min-width: 760px) {
  .page-disclaimer .dc-res__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-disclaimer .dc-row {
    grid-template-columns: minmax(180px, 250px) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 64px);
    align-items: start;
  }

  .page-disclaimer .dc-sec__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: end;
    column-gap: clamp(24px, 4vw, 64px);
  }

  .page-disclaimer .dc-sec__head .ht-eyebrow {
    grid-column: 1 / -1;
  }
}

@media (min-width: 920px) {
  .page-disclaimer .dc-hero__wrap {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(32px, 5vw, 80px);
  }
}

@media (min-width: 1120px) {
  .page-disclaimer .dc-res__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1360px) {
  .page-disclaimer .dc-sec__index {
    display: block;
    position: absolute;
    top: 6px;
    right: calc(100% + 20px);
    writing-mode: vertical-rl;
    transform: rotate(180deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .dc-res,
  .page-disclaimer .dc-row,
  .page-disclaimer .dc-jump__link {
    transition: none;
  }

  .page-disclaimer .dc-res:hover {
    transform: none;
  }
}