/* ===== 帮助中心页面 · page-faq ===== */
.page-faq {
  --faq-bright: #F2F8FF;
  --faq-gap: clamp(18px, 3vw, 34px);
  --faq-line: 1px solid var(--line-soft);
}

.page-faq .section {
  scroll-margin-top: calc(var(--bar-h) + 28px);
}

.page-faq .section--hero {
  position: relative;
  overflow: clip;
  padding-bottom: clamp(12px, 2vw, 20px);
  background:
    radial-gradient(120% 82% at 84% 0%, rgba(38, 245, 208, .10), transparent 62%),
    radial-gradient(92% 72% at 8% 18%, rgba(255, 138, 61, .07), transparent 66%);
}

.page-faq .crumb {
  margin-bottom: clamp(18px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.6vw, 54px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--faq-bright);
  margin: 10px 0 16px;
  max-width: 24ch;
}

.page-faq .faq-hero .lead {
  max-width: 58ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--mute);
  margin: 0;
}

.page-faq .faq-hero__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-faq .meta-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 15px;
  border: var(--faq-line);
  border-left: 3px solid rgba(38, 245, 208, .68);
  border-radius: var(--radius-sm);
  background: linear-gradient(158deg, rgba(38, 245, 208, .08), rgba(11, 29, 46, .92) 62%);
}

.page-faq .meta-card--orange {
  border-left-color: rgba(255, 138, 61, .78);
  background: linear-gradient(158deg, rgba(255, 138, 61, .09), rgba(11, 29, 46, .92) 62%);
}

.page-faq .meta-card__num {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 600;
  line-height: 1;
  color: var(--neon);
}

.page-faq .meta-card--orange .meta-card__num {
  color: var(--orange);
}

.page-faq .meta-card__label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mute);
}

.page-faq .hero-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: clamp(22px, 3vw, 32px);
  padding-top: clamp(16px, 2vw, 22px);
  border-top: var(--faq-line);
}

.page-faq .hero-jump a {
  font-size: 13.5px;
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color .18s ease, border-color .18s ease;
}

.page-faq .hero-jump a:hover,
.page-faq .hero-jump a:focus-visible {
  color: var(--neon);
  border-bottom-color: rgba(38, 245, 208, .6);
}

/* ---------- 三步订阅 ---------- */
.page-faq .steps-layout {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-faq .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
  padding: clamp(16px, 2.2vw, 24px);
  border: var(--faq-line);
  border-left: 3px solid rgba(255, 138, 61, .76);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(53, 82, 107, .22), rgba(11, 29, 46, .84));
  transition: border-color .2s ease, transform .2s ease;
}

.page-faq .step:hover {
  border-color: rgba(255, 138, 61, .42);
}

.page-faq .step__idx {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 600;
  line-height: 1;
  padding-top: 2px;
  color: var(--orange);
}

.page-faq .step__title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.1vw, 22px);
  font-weight: 700;
  color: var(--faq-bright);
  margin: 0 0 8px;
}

.page-faq .step__body p {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.75;
  color: var(--mute);
}

.page-faq .step-figure {
  margin: 0;
  border: var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  align-self: start;
}

.page-faq .step-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 目标类型 ---------- */
.page-faq .target-grid {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .target-card {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px 16px;
  align-content: start;
  padding: clamp(18px, 2.4vw, 26px);
  transition: transform .2s ease, border-color .2s ease;
}

.page-faq .target-card:hover {
  transform: translateY(-3px);
}

.page-faq .target-card__icon {
  grid-row: span 2;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: var(--neon);
  background: rgba(38, 245, 208, .1);
  border: 1px solid rgba(38, 245, 208, .32);
}

.page-faq .target-card__icon svg {
  width: 22px;
  height: 22px;
  display: block;
}

.page-faq .target-card__title {
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  color: var(--faq-bright);
  margin: 0;
  align-self: center;
}

.page-faq .target-card__text {
  margin: 0;
  font-size: 14.6px;
  line-height: 1.75;
  color: var(--mute);
}

/* ---------- 数据与纠错 ---------- */
.page-faq .data-layout {
  margin-top: 0;
  align-items: start;
}

.page-faq .data-copy h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--faq-bright);
  margin: 10px 0 14px;
}

.page-faq .data-copy > p {
  font-size: 14.8px;
  line-height: 1.78;
  color: var(--mute);
  margin: 0 0 18px;
}

.page-faq .field-legend {
  border: var(--faq-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 16px;
}

.page-faq .field-legend__row {
  display: grid;
  grid-template-columns: minmax(108px, .55fr) minmax(0, 1.45fr);
  gap: 12px;
  padding: 13px 16px;
  border-bottom: var(--faq-line);
  font-size: 14px;
  line-height: 1.68;
  color: var(--mist);
}

.page-faq .field-legend__row:last-child {
  border-bottom: 0;
}

.page-faq .field-legend__row:nth-child(odd) {
  background: rgba(53, 82, 107, .14);
}

.page-faq .field-legend__key {
  color: var(--neon);
  font-size: 13px;
  letter-spacing: .02em;
}

.page-faq .data-aside {
  display: grid;
  gap: clamp(14px, 2vw, 18px);
  align-content: start;
}

.page-faq .data-aside .media {
  margin: 0;
  border: var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

.page-faq .data-aside .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .mail-template {
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px dashed rgba(255, 138, 61, .52);
  border-radius: var(--radius-sm);
  background: rgba(255, 138, 61, .06);
}

.page-faq .mail-template__label {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .mail-template__value {
  margin: 8px 0 10px;
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 600;
  color: var(--amber);
  word-break: break-all;
}

.page-faq .mail-template .note {
  margin: 0;
}

/* ---------- 速度与兼容 ---------- */
.page-faq .speed-board {
  display: grid;
  gap: 1px;
  margin-top: clamp(22px, 3vw, 34px);
  border: var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line-soft);
}

.page-faq .speed-board__cell {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--panel);
}

.page-faq .speed-board__num {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 600;
  line-height: 1;
  color: var(--neon);
}

.page-faq .speed-board__num--orange {
  color: var(--orange);
}

.page-faq .speed-board__label {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--mute);
}

.page-faq .speed-notes {
  display: grid;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
  max-width: 72ch;
}

.page-faq .speed-notes p {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .speed-notes .note {
  color: var(--mute);
}

/* ---------- 自查清单 ---------- */
.page-faq .selfcheck {
  padding: clamp(20px, 3vw, 34px);
}

.page-faq .selfcheck__head {
  max-width: 62ch;
}

.page-faq .selfcheck__head h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 700;
  line-height: 1.22;
  color: var(--faq-bright);
  margin: 10px 0 12px;
}

.page-faq .checklist {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .checklist li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 14.8px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .checklist li::before {
  content: "";
  width: 18px;
  height: 18px;
  margin-top: 5px;
  border-radius: 6px;
  border: 1.5px solid rgba(38, 245, 208, .7);
  background: rgba(38, 245, 208, .12);
}

.page-faq .selfcheck__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.8vw, 28px);
}

/* ---------- 常见问题 ---------- */
.page-faq .filter-bar {
  margin: clamp(20px, 3vw, 30px) 0 clamp(16px, 2vw, 22px);
}

.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: var(--faq-line);
  border-radius: var(--radius-sm);
  background: rgba(11, 29, 46, .72);
  overflow: hidden;
  transition: border-color .2s ease, background .2s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(38, 245, 208, .42);
  background: rgba(11, 29, 46, .96);
}

.page-faq .faq-item.is-hidden {
  display: none;
}

.page-faq .faq-item summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: clamp(14px, 1.8vw, 18px) clamp(16px, 2vw, 22px);
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--faq-bright);
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary::after {
  content: "";
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--neon);
  border-bottom: 2px solid var(--neon);
  transform: rotate(45deg);
  transition: transform .22s ease;
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(-135deg);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: -2px;
}

.page-faq .faq-item__body {
  padding: 14px clamp(16px, 2vw, 22px) clamp(16px, 2vw, 20px);
  border-top: var(--faq-line);
  font-size: 14.6px;
  line-height: 1.78;
  color: var(--mute);
}

.page-faq .faq-item__body p {
  margin: 0;
}

.page-faq .faq-outro {
  margin-top: clamp(24px, 3.4vw, 38px);
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: var(--faq-line);
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-faq .faq-outro p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.8px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-faq .speed-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, .72fr);
  }

  .page-faq .faq-hero__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .speed-board {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-faq .steps-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}

@media (max-width: 639px) {
  .page-faq .field-legend__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-faq .step {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .page-faq .step__idx {
    padding-top: 0;
  }

  .page-faq .target-card {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 8px 14px;
  }

  .page-faq .target-card__icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }

  .page-faq .faq-hero__meta {
    grid-template-columns: minmax(0, 1fr);
  }
}
</style>