/* ===== 使用说明页 · 作用域与变量 ===== */
.page-disclaimer {
  --terms-bg: #FAF7F0;
  --terms-card: #FFFFFF;
  --terms-ink: #1D2E3C;
  --terms-text: #3A4A58;
  --terms-muted: #6D7B8C;
  --terms-line: #E4DFD2;
  background: var(--terms-bg);
}

/* ===== 条款页头部 ===== */
.page-disclaimer .terms-head {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 20%, rgba(0, 230, 138, 0.16) 0%, transparent 34%),
    linear-gradient(135deg, var(--color-night) 0%, #0D1B38 58%, var(--color-midnight) 100%);
  color: var(--color-foam);
  padding-top: calc(var(--header-height) + clamp(40px, 8vw, 72px));
  padding-bottom: clamp(48px, 8vw, 88px);
}

.page-disclaimer .terms-head::before {
  content: '';
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 320px;
  height: 320px;
  border: 1px solid rgba(233, 242, 247, 0.1);
  border-radius: 50%;
  box-shadow:
    0 0 0 56px rgba(233, 242, 247, 0.02),
    0 0 0 112px rgba(233, 242, 247, 0.02);
  pointer-events: none;
}

.page-disclaimer .terms-head::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-green) 0%, var(--color-green) 38%, var(--color-orange) 38%, var(--color-orange) 54%, transparent 54%);
  opacity: 0.9;
}

.page-disclaimer .terms-head__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

@media (min-width: 960px) {
  .page-disclaimer .terms-head__grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: clamp(48px, 8vw, 112px);
    align-items: end;
  }
}

.page-disclaimer .breadcrumb {
  margin-bottom: 36px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--color-slate);
}

.page-disclaimer .breadcrumb a {
  color: var(--color-green);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.page-disclaimer .breadcrumb a:hover {
  opacity: 0.75;
}

.page-disclaimer .breadcrumb span[aria-current="page"] {
  color: var(--color-foam);
}

.page-disclaimer .terms-head__main .section-label {
  color: var(--color-green);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 700;
}

.page-disclaimer .terms-head__main h1 {
  margin: 14px 0 20px;
  font-size: clamp(2.125rem, 5.6vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--color-foam);
}

.page-disclaimer .terms-head__lead {
  max-width: 46em;
  margin: 0;
  color: var(--color-slate);
  font-size: 1rem;
  line-height: 1.8;
}

.page-disclaimer .terms-head__meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-disclaimer .terms-head__meta-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  background: rgba(233, 242, 247, 0.05);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-orange);
}

.page-disclaimer .terms-head__meta-item span {
  color: var(--color-slate);
  font-size: 0.8125rem;
  white-space: nowrap;
}

.page-disclaimer .terms-head__meta-item strong {
  color: var(--color-foam);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-align: right;
}

.page-disclaimer .terms-head__meta-item:first-child strong::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-green);
  border-radius: 50%;
  flex: none;
  animation: page-disclaimer-pulse 2s ease-in-out infinite;
}

/* ===== 条款目录与正文容器 ===== */
.page-disclaimer .terms-body {
  padding: clamp(56px, 9vw, 104px) 0 clamp(64px, 9vw, 112px);
  background: var(--terms-bg);
}

.page-disclaimer .terms-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

@media (min-width: 1024px) {
  .page-disclaimer .terms-body__grid {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: clamp(48px, 6vw, 96px);
  }
}

.page-disclaimer .terms-toc {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  padding: 24px 22px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--terms-line);
  border-top: 3px solid var(--color-green);
}

.page-disclaimer .terms-toc__title {
  margin: 0 0 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--terms-line);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--terms-muted);
  font-family: var(--font-mono);
}

.page-disclaimer .terms-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-disclaimer .terms-toc__list a {
  position: relative;
  display: block;
  padding: 10px 12px;
  color: var(--terms-ink);
  font-size: 0.9375rem;
  line-height: 1.4;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.page-disclaimer .terms-toc__list a::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 1px;
  background: var(--color-green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.page-disclaimer .terms-toc__list a:hover,
.page-disclaimer .terms-toc__list a:focus-visible {
  border-left-color: var(--color-green);
  background: rgba(0, 230, 138, 0.07);
  color: #0A1128;
}

.page-disclaimer .terms-toc__list a:hover::after,
.page-disclaimer .terms-toc__list a:focus-visible::after {
  transform: scaleX(1);
}

.page-disclaimer .terms-toc__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--terms-line);
  color: var(--terms-muted);
  font-size: 0.8125rem;
  line-height: 1.7;
}

.page-disclaimer .terms-toc__note a {
  color: var(--terms-ink);
  font-weight: 600;
  border-bottom: 1px solid var(--color-green);
  text-decoration: none;
}

/* ===== 条款块 ===== */
.page-disclaimer .terms-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-disclaimer .terms-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: clamp(24px, 4vw, 44px);
  background: var(--terms-card);
  border: 1px solid var(--terms-line);
  box-shadow: 0 2px 0 rgba(10, 17, 40, 0.03);
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.page-disclaimer .terms-block:hover {
  border-color: #CEC9BC;
  box-shadow: 0 16px 40px rgba(10, 17, 40, 0.07);
  transform: translateY(-2px);
}

@media (min-width: 720px) {
  .page-disclaimer .terms-block {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 28px;
    padding: clamp(28px, 4vw, 44px);
  }
}

.page-disclaimer .terms-block__num {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-green);
  color: var(--color-night);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-disclaimer .terms-block:hover .terms-block__num {
  transform: scale(1.05);
  box-shadow: 0 8px 20px rgba(0, 230, 138, 0.22);
}

.page-disclaimer .terms-block__body h2 {
  position: relative;
  display: inline-block;
  margin: 0 0 18px;
  font-size: clamp(1.25rem, 2.4vw, 1.625rem);
  line-height: 1.3;
  color: var(--terms-ink);
  letter-spacing: -0.01em;
}

.page-disclaimer .terms-block__body h2::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 2px;
  background: var(--color-green);
  transform: scaleX(0.32);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.page-disclaimer .terms-block:hover .terms-block__body h2::after {
  transform: scaleX(1);
}

.page-disclaimer .terms-block__body p {
  margin: 0 0 14px;
  color: var(--terms-text);
  font-size: 0.9375rem;
  line-height: 1.9;
}

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

.page-disclaimer .terms-block__body p strong {
  color: var(--terms-ink);
  font-weight: 700;
}

.page-disclaimer .terms-block__body a {
  color: var(--terms-ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--color-green);
  transition: background 0.2s ease;
}

.page-disclaimer .terms-block__body a:hover {
  background: rgba(0, 230, 138, 0.18);
}

.page-disclaimer .terms-list {
  margin: 16px 0 2px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-disclaimer .terms-list li {
  position: relative;
  padding-left: 24px;
  color: var(--terms-text);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-disclaimer .terms-list li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 8px;
  height: 8px;
  background: var(--color-orange);
  border-radius: 1px;
}

/* ===== 同意区 ===== */
.page-disclaimer .terms-agree {
  background: var(--terms-bg);
  padding-bottom: clamp(72px, 12vw, 136px);
  border-top: 1px solid var(--terms-line);
  position: relative;
}

.page-disclaimer .terms-agree::before {
  content: '条款确认';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-night);
  color: var(--color-green);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 8px 18px;
  white-space: nowrap;
}

.page-disclaimer .terms-agree__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: clamp(48px, 8vw, 88px);
}

.page-disclaimer .terms-agree__seal {
  width: 112px;
  height: 112px;
  object-fit: contain;
  border-radius: 50%;
  border: 1px solid #D9D2C2;
  padding: 10px;
  background: rgba(255, 255, 255, 0.85);
  max-width: 100%;
}

@media (min-width: 700px) {
  .page-disclaimer .terms-agree__seal {
    width: 160px;
    height: 160px;
  }
}

.page-disclaimer .terms-agree h2 {
  margin: 22px 0 10px;
  font-size: clamp(1.5rem, 4vw, 2.125rem);
  color: var(--terms-ink);
  letter-spacing: -0.01em;
}

.page-disclaimer .terms-agree p {
  margin: 0 0 28px;
  max-width: 42em;
  color: var(--terms-muted);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.page-disclaimer .terms-agree__btn {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  background: var(--color-green);
  color: var(--color-night);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 16px 44px;
  cursor: pointer;
  box-shadow: 0 8px 28px rgba(0, 230, 138, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}

.page-disclaimer .terms-agree__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(0, 230, 138, 0.38);
  background: #00F294;
}

.page-disclaimer .terms-agree__btn:active {
  transform: scale(0.96);
  box-shadow: 0 4px 16px rgba(0, 230, 138, 0.3);
}

.page-disclaimer .terms-agree__btn:focus-visible {
  outline: 3px solid var(--color-green);
  outline-offset: 3px;
}

.page-disclaimer .terms-agree__note {
  margin-top: 18px;
  color: var(--terms-muted);
  font-size: 0.8125rem;
  line-height: 1.6;
}

/* ===== 局部动效 ===== */
@keyframes page-disclaimer-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(0, 230, 138, 0.4);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(0, 230, 138, 0);
  }
}