.page-faq {
  background: var(--arena-900);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(1.4rem, 4vw, 2.4rem) var(--gutter) clamp(2.2rem, 6vw, 3.8rem);
  background: linear-gradient(180deg, rgba(12, 33, 56, 0.92), rgba(7, 20, 38, 1) 72%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -12%;
  width: min(64%, 760px);
  height: 136%;
  background: linear-gradient(150deg, rgba(53, 242, 208, 0.2), rgba(255, 90, 31, 0.13) 56%, transparent 82%);
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 78%);
  z-index: -1;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  max-width: var(--wrap);
  margin-inline: auto;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.6rem);
}

.page-faq .faq-hero h1 {
  margin: 0.55rem 0 0;
  font-size: clamp(1.85rem, 5.4vw, 3.4rem);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.012em;
}

.page-faq .faq-hero__lead {
  margin: 1rem 0 0;
  max-width: 36em;
  font-size: clamp(0.96rem, 2.4vw, 1.06rem);
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.8);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: clamp(1.3rem, 3vw, 1.9rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.page-faq .faq-fact {
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.7rem 0.85rem;
  background: rgba(12, 33, 56, 0.66);
}

.page-faq .faq-fact__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  color: var(--cyan-500);
}

.page-faq .faq-fact:nth-child(2) .faq-fact__num {
  color: var(--orange-400);
}

.page-faq .faq-fact__label {
  display: block;
  margin-top: 0.28rem;
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-hero__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 4%, 100% 100%, 0 96%);
}

.page-faq .faq-hero__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: center;
  }
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 0 var(--gutter) clamp(2.5rem, 7vw, 4.5rem);
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
  }
}

.page-faq .faq-index {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.6rem;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.4rem 0.15rem;
  font-size: 0.9rem;
  color: rgba(244, 241, 234, 0.82);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--cyan-200);
  border-bottom-color: rgba(53, 242, 208, 0.55);
  outline: none;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--orange-400);
}

.page-faq .faq-index__note {
  margin: 1rem 0 0;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--mist);
}

@media (min-width: 980px) {
  .page-faq .faq-index {
    position: sticky;
    top: 5.5rem;
    border-top: 0;
    border-left: 1px solid var(--line);
    padding: 0 0 0 1rem;
  }

  .page-faq .faq-index__list {
    display: block;
  }

  .page-faq .faq-index__link {
    padding: 0.42rem 0;
  }
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding-top: clamp(1.3rem, 3vw, 1.9rem);
  border-top: 1px solid var(--line);
  scroll-margin-top: 6.5rem;
}

.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(1.8rem, 5vw, 2.8rem);
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
}

.page-faq .faq-sec__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--orange-400);
}

.page-faq .faq-sec h2 {
  margin: 0;
  font-size: clamp(1.22rem, 3vw, 1.62rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-sec__lead {
  margin: 0.7rem 0 0;
  max-width: 48em;
  font-size: 0.97rem;
  line-height: 1.85;
  color: rgba(244, 241, 234, 0.78);
}

.page-faq .faq-sec__lead a,
.page-faq .qa__a a,
.page-faq .faq-next a {
  color: var(--cyan-200);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-sec__lead a:hover,
.page-faq .qa__a a:hover,
.page-faq .faq-next a:hover {
  color: var(--paper);
}

/* ---------- 手风琴 ---------- */
.page-faq .qa {
  margin-top: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--arena-800);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-faq .qa:hover {
  border-color: rgba(53, 242, 208, 0.42);
}

.page-faq .qa[open] {
  border-color: rgba(53, 242, 208, 0.6);
  background: linear-gradient(180deg, rgba(53, 242, 208, 0.08), rgba(12, 33, 56, 0.92));
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.9rem 1rem;
  font-size: 0.97rem;
  font-weight: 700;
  line-height: 1.55;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--cyan-500);
  transition: color 0.25s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
  color: var(--orange-400);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan-500);
  outline-offset: -2px;
  border-radius: 2px;
}

.page-faq .qa__a {
  padding: 0 1rem 1rem;
  font-size: 0.93rem;
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.82);
}

.page-faq .qa__a p {
  margin: 0.45rem 0 0;
}

.page-faq .qa__lead {
  color: var(--cyan-200);
  font-weight: 700;
}

/* ---------- 30 天环形周期 ---------- */
.page-faq .cycle-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.2rem;
}

@media (min-width: 760px) {
  .page-faq .cycle-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }
}

.page-faq .cycle-panel {
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 1.15rem;
  background: radial-gradient(circle at 28% 18%, rgba(53, 242, 208, 0.1), transparent 62%), var(--arena-800);
}

.page-faq .cycle-ring {
  position: relative;
  width: min(238px, 68vw);
  aspect-ratio: 1;
  margin: 0.3rem auto 0.9rem;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--arena-800) 0 57%, transparent 57%),
    repeating-conic-gradient(from -90deg, rgba(53, 242, 208, 0.9) 0deg 1.9deg, rgba(36, 72, 102, 0.85) 1.9deg 12deg);
}

.page-faq .cycle-ring::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(36, 72, 102, 0.9);
  pointer-events: none;
}

.page-faq .cycle-ring__core {
  position: absolute;
  inset: 22%;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 0.2rem;
  text-align: center;
}

.page-faq .cycle-ring__num {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.9rem;
  line-height: 1;
  color: var(--paper);
}

.page-faq .cycle-ring__unit {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-faq .cycle-ring__mark {
  position: absolute;
  left: 20.6%;
  top: 29.8%;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border-radius: 50%;
  background: var(--orange-600);
  box-shadow: 0 0 0 4px rgba(255, 90, 31, 0.22);
  cursor: help;
}

.page-faq .cycle-ring__mark:focus-visible {
  outline: 2px solid var(--cyan-500);
  outline-offset: 3px;
}

.page-faq .cycle-ring__badge {
  position: absolute;
  left: 17px;
  top: 50%;
  transform: translate(-6px, -50%);
  padding: 0.22rem 0.42rem;
  border-radius: 2px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  color: var(--arena-900);
  background: var(--orange-400);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .cycle-ring__mark:hover .cycle-ring__badge,
.page-faq .cycle-ring__mark:focus .cycle-ring__badge {
  opacity: 1;
  transform: translate(0, -50%);
}

.page-faq .cycle-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.page-faq .cycle-legend__item {
  display: grid;
  grid-template-columns: 4.2rem minmax(0, 1fr);
  gap: 0.6rem;
  padding-top: 0.45rem;
  border-top: 1px dashed rgba(36, 72, 102, 0.95);
}

.page-faq .cycle-legend__day {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--cyan-500);
}

.page-faq .cycle-legend__text {
  font-size: 0.84rem;
  line-height: 1.6;
  color: rgba(244, 241, 234, 0.82);
}

.page-faq .cycle-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
  background: var(--arena-800);
}

.page-faq .cycle-figure img {
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .cycle-figure figcaption {
  padding: 0.65rem 0.9rem;
  border-top: 1px solid var(--line);
  font-size: 0.76rem;
  color: var(--mist);
}

/* ---------- 费用卡 ---------- */
.page-faq .fee-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.2rem;
}

@media (min-width: 820px) {
  .page-faq .fee-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .fee-card {
  position: relative;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--arena-800);
}

.page-faq .fee-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--cyan-500);
}

.page-faq .fee-card--warm::before {
  background: var(--orange-600);
}

.page-faq .fee-card h3 {
  margin: 0.35rem 0 0.7rem;
  font-size: 1.03rem;
  font-weight: 800;
}

.page-faq .fee-row {
  display: grid;
  gap: 0.12rem;
  padding: 0.55rem 0;
  border-top: 1px solid rgba(36, 72, 102, 0.85);
}

.page-faq .fee-row:first-of-type {
  border-top: 0;
}

.page-faq .fee-row__k {
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.1em;
  color: var(--cyan-200);
}

.page-faq .fee-card--warm .fee-row__k {
  color: var(--orange-400);
}

.page-faq .fee-row__v {
  font-size: 0.89rem;
  line-height: 1.65;
  color: rgba(244, 241, 234, 0.84);
}

/* ---------- 数据条 ---------- */
.page-faq .stat-strip {
  display: grid;
  gap: 0.7rem;
  margin-top: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
}

.page-faq .stat-strip__item {
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.85rem 0.9rem;
  background: linear-gradient(180deg, rgba(23, 51, 79, 0.78), rgba(12, 33, 56, 0.92));
}

.page-faq .stat-strip__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--paper);
}

.page-faq .stat-strip__num em {
  font-style: normal;
  font-size: 0.78rem;
  margin-left: 0.22rem;
  color: var(--cyan-500);
}

.page-faq .stat-strip__label {
  display: block;
  margin-top: 0.26rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 联系区 ---------- */
.page-faq .contact-block {
  margin-top: 1.2rem;
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.05rem, 3vw, 1.6rem);
  border: 1px solid rgba(255, 90, 31, 0.36);
  border-radius: 2px;
  background: linear-gradient(160deg, rgba(255, 90, 31, 0.13), rgba(12, 33, 56, 0.92) 56%);
}

@media (min-width: 760px) {
  .page-faq .contact-block {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

.page-faq .contact-block__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-faq .contact-block__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.67rem;
  letter-spacing: 0.14em;
  color: var(--orange-400);
}

.page-faq .contact-block__value {
  display: block;
  margin-top: 0.16rem;
  font-size: 0.94rem;
  line-height: 1.62;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.9rem;
}

.page-faq .faq-next {
  margin: 1.2rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.87rem;
}

.page-faq .faq-next a {
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.4);
  padding-bottom: 1px;
}

.page-faq .faq-next a:hover {
  border-bottom-color: var(--paper);
}