.page-faq {
  --faq-indigo-deep: #1E123C;
  --faq-glow: rgba(255, 106, 0, .28);
}

.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 6vw, 56px) 0 clamp(40px, 7vw, 88px);
  background:
    radial-gradient(120% 90% at 82% 8%, rgba(43, 27, 82, .92), transparent 62%),
    radial-gradient(90% 70% at 4% 96%, rgba(255, 106, 0, .16), transparent 58%),
    linear-gradient(168deg, #05192C 0%, #0B2E4F 58%, #123055 100%);
  color: var(--paper);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -2px -10%;
  height: 120px;
  background: linear-gradient(180deg, transparent, rgba(5, 25, 44, .85));
  clip-path: polygon(0 62%, 100% 12%, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8125rem;
  color: rgba(245, 248, 251, .62);
  margin-bottom: clamp(20px, 4vw, 36px);
}

.page-faq .breadcrumb a {
  color: rgba(245, 248, 251, .82);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 162, 58, .5);
}

.page-faq .breadcrumb a:hover {
  color: var(--orange-2);
}

.page-faq .hero-grid {
  align-items: center;
  row-gap: clamp(28px, 5vw, 48px);
}

.page-faq .hero-copy .eyebrow {
  color: var(--orange-2);
  letter-spacing: .16em;
  text-transform: uppercase;
  font-size: .75rem;
  margin-bottom: 14px;
}

.page-faq .hero-copy h1 {
  font-size: clamp(2.1rem, 6.4vw, 4rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.02em;
  margin: 0 0 18px;
}

.page-faq .hero-copy .lede {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: rgba(245, 248, 251, .82);
  max-width: 60ch;
  margin: 0 0 28px;
}

.page-faq .hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid rgba(245, 248, 251, .14);
  border-bottom: 1px solid rgba(245, 248, 251, .14);
  margin-bottom: 26px;
}

.page-faq .hero-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .hero-stats .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--orange-2);
}

.page-faq .hero-stats .stat-label {
  font-size: .8125rem;
  color: rgba(245, 248, 251, .66);
}

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

.page-faq .hero-visual .media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(245, 248, 251, .16);
}

.page-faq .hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 章节浮标 */
.page-faq .chapter-rail {
  display: none;
}

@media (min-width: 1480px) {
  .page-faq .chapter-rail {
    display: block;
    position: fixed;
    left: max(18px, calc((100vw - var(--shell)) / 2 - 120px));
    top: 50%;
    transform: translateY(-50%);
    z-index: 30;
  }

  .page-faq .rail-index {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .page-faq .rail-link {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .8125rem;
    color: var(--muted);
    text-decoration: none;
    transition: color .22s var(--ease), transform .22s var(--ease);
  }

  .page-faq .rail-link .mono {
    font-family: var(--font-mono);
    font-size: .6875rem;
    letter-spacing: .06em;
    color: var(--muted);
  }

  .page-faq .rail-link:hover,
  .page-faq .rail-link.is-active {
    color: var(--orange);
    transform: translateX(3px);
  }

  .page-faq .rail-link.is-active .mono {
    color: var(--orange);
  }
}

/* 通用章节骨架 */
.page-faq .faq-section {
  position: relative;
  padding: clamp(48px, 8vw, 96px) 0;
}

.page-faq .faq-section--deep {
  background: linear-gradient(170deg, #05192C 0%, #0B2E4F 100%);
  color: var(--paper);
}

.page-faq .faq-section--indigo {
  background:
    radial-gradient(80% 60% at 88% 0%, rgba(255, 106, 0, .14), transparent 60%),
    linear-gradient(160deg, #2B1B52 0%, #1E123C 100%);
  color: var(--paper);
}

.page-faq .faq-section--blue {
  background: linear-gradient(155deg, #0B2E4F 0%, #14486F 100%);
  color: var(--paper);
}

.page-faq .faq-section--jade {
  background: linear-gradient(150deg, #0E4F46 0%, #083A34 100%);
  color: var(--paper);
}

.page-faq .faq-section--wine {
  background:
    radial-gradient(70% 60% at 12% 100%, rgba(255, 106, 0, .18), transparent 62%),
    linear-gradient(160deg, #5A1230 0%, #3A0B20 100%);
  color: var(--paper);
}

.page-faq .faq-section--paper {
  background: var(--paper);
  color: var(--text);
}

.page-faq .slant-top {
  clip-path: polygon(0 0, 100% 2.6vw, 100% 100%, 0 100%);
  padding-top: clamp(64px, 10vw, 120px);
}

.page-faq .slant-bottom {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 2.4vw));
  padding-bottom: clamp(64px, 10vw, 118px);
}

.page-faq .faq-head {
  max-width: 72ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-faq .faq-head .eyebrow {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange-2);
  margin: 0 0 12px;
}

.page-faq .faq-section--paper .faq-head .eyebrow {
  color: #B4430A;
}

.page-faq .faq-head h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.02em;
  margin: 0 0 14px;
}

.page-faq .faq-head .lede {
  font-size: 1.0625rem;
  line-height: 1.75;
  margin: 0;
  color: rgba(245, 248, 251, .8);
}

.page-faq .faq-section--paper .faq-head .lede {
  color: var(--muted);
}

/* 问题定位 */
.page-faq .locate-grid {
  row-gap: 20px;
  margin-bottom: clamp(30px, 5vw, 52px);
}

.page-faq .locate-item {
  position: relative;
  padding: 22px 20px 22px 22px;
  background: rgba(245, 248, 251, .06);
  border: 1px solid rgba(245, 248, 251, .14);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
}

.page-faq .locate-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--orange), var(--orange-2));
}

.page-faq .locate-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--orange-2);
  letter-spacing: .04em;
  margin-bottom: 10px;
}

.page-faq .locate-item h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.page-faq .locate-item p {
  font-size: .9375rem;
  line-height: 1.72;
  color: rgba(245, 248, 251, .74);
  margin: 0;
}

/* 标签与面板 */
.page-faq .tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-faq .tab-btn {
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .04em;
  cursor: pointer;
  border: 1px solid rgba(245, 248, 251, .2);
  background: rgba(245, 248, 251, .08);
  color: rgba(245, 248, 251, .78);
  padding: 9px 16px;
  border-radius: 999px;
  transition: background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .tab-btn:hover {
  border-color: var(--orange-2);
  color: var(--paper);
}

.page-faq .tab-btn.is-active {
  background: linear-gradient(120deg, var(--orange), var(--orange-2));
  border-color: transparent;
  color: #170A02;
  font-weight: 700;
}

.page-faq .tab-stage {
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3.4vw, 32px);
  background: rgba(245, 248, 251, .07);
  border: 1px solid rgba(245, 248, 251, .16);
  backdrop-filter: blur(10px);
}

.page-faq .faq-panel h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 16px;
}

.page-faq .faq-panel[hidden] {
  display: none;
}

.page-faq .issue-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .issue-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: .9375rem;
  line-height: 1.7;
  color: rgba(245, 248, 251, .84);
}

.page-faq .dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
}

.page-faq .dot--orange {
  background: var(--orange);
  box-shadow: 0 0 0 3px var(--faq-glow);
}

.page-faq .text-link {
  display: inline-block;
  font-size: .875rem;
  color: var(--orange-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 162, 58, .5);
  padding-bottom: 2px;
}

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

/* 步骤清单 */
.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 18px;
  border-left: 2px solid rgba(255, 106, 0, .38);
  display: grid;
  gap: 18px;
}

.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 18px 20px;
  background: rgba(245, 248, 251, .07);
  border: 1px solid rgba(245, 248, 251, .14);
  border-radius: var(--radius-md);
}

.page-faq .step::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 26px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--orange);
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--orange-2);
  line-height: 1;
}

.page-faq .step-body h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.45;
}

.page-faq .step-body p {
  font-size: .9375rem;
  line-height: 1.72;
  margin: 0;
  color: rgba(245, 248, 251, .78);
}

.page-faq .step-body a {
  color: var(--orange-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 162, 58, .5);
}

.page-faq .step-state {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.page-faq .step-state::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.page-faq .step-state--neon {
  color: var(--neon);
  border-color: rgba(59, 232, 160, .42);
  background: rgba(59, 232, 160, .1);
}

.page-faq .step-state--orange {
  color: var(--orange-2);
  border-color: rgba(255, 162, 58, .42);
  background: rgba(255, 106, 0, .12);
}

.page-faq .step-state--plain {
  color: rgba(245, 248, 251, .66);
  border-color: rgba(245, 248, 251, .24);
}

/* 浅色区分支 */
.page-faq .step-list--light {
  border-left-color: rgba(180, 67, 10, .42);
}

.page-faq .step-list--light .step {
  background: #FFFFFF;
  border-color: var(--line);
  box-shadow: 0 12px 30px -24px rgba(5, 25, 44, .5);
}

.page-faq .step-list--light .step::before {
  background: var(--paper);
  border-color: var(--orange);
}

.page-faq .step-list--light .step-num {
  color: #B4430A;
}

.page-faq .step-list--light .step-body p {
  color: var(--muted);
}

.page-faq .step-list--light .step-state--neon {
  color: #0C6E4A;
  border-color: rgba(12, 110, 74, .34);
  background: rgba(59, 232, 160, .18);
}

.page-faq .step-list--light .step-state--orange {
  color: #A8410A;
  border-color: rgba(168, 65, 10, .3);
  background: rgba(255, 106, 0, .1);
}

.page-faq .step-list--light .step-state--plain {
  color: var(--muted);
  border-color: var(--line);
}

.page-faq .blank-visual .media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 22px 50px -30px rgba(5, 25, 44, .6);
  border: 1px solid var(--line);
}

.page-faq .blank-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 验证码 */
.page-faq .code-grid {
  row-gap: 18px;
}

.page-faq .code-card {
  padding: 22px 22px 24px;
  border-radius: var(--radius-lg);
  background: rgba(245, 248, 251, .1);
  border: 1px solid rgba(245, 248, 251, .18);
  backdrop-filter: blur(10px);
}

.page-faq .code-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(245, 248, 251, .18);
}

.page-faq .code-note {
  margin: clamp(22px, 3vw, 34px) 0 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(245, 248, 251, .78);
  padding-left: 16px;
  border-left: 2px solid var(--orange);
}

.page-faq .code-note a {
  color: var(--orange-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 162, 58, .5);
}

/* 榜单 */
.page-faq .rank-grid {
  row-gap: 26px;
  align-items: start;
}

.page-faq .step-list--dark {
  border-left-color: rgba(59, 232, 160, .38);
}

.page-faq .step-list--dark .step {
  background: rgba(5, 25, 44, .38);
  border-color: rgba(245, 248, 251, .16);
}

.page-faq .step-list--dark .step::before {
  background: #083A34;
  border-color: var(--neon);
}

.page-faq .rank-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: rgba(5, 25, 44, .42);
  border: 1px solid rgba(245, 248, 251, .2);
  backdrop-filter: blur(10px);
}

.page-faq .rank-card .eyebrow {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--neon);
  margin: 0 0 18px;
}

.page-faq .rank-card .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(245, 248, 251, .16);
}

.page-faq .rank-card .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 700;
  color: var(--paper);
  line-height: 1;
  letter-spacing: .02em;
}

.page-faq .rank-card .stat-label {
  font-size: .8125rem;
  color: rgba(245, 248, 251, .7);
}

.page-faq .rank-note {
  font-size: .9375rem;
  line-height: 1.72;
  color: rgba(245, 248, 251, .78);
  margin: 20px 0 22px;
}

/* 访问记录 */
.page-faq .record-grid {
  row-gap: 18px;
  margin-bottom: 24px;
}

.page-faq .record-card {
  padding: 24px 22px;
  border-radius: var(--radius-lg);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
  box-shadow: 0 18px 40px -32px rgba(5, 25, 44, .6);
}

.page-faq .record-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .1em;
  color: #B4430A;
  background: rgba(255, 106, 0, .1);
  border-radius: 999px;
  padding: 4px 10px;
  margin-bottom: 14px;
}

.page-faq .record-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.page-faq .record-card p {
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--muted);
  margin: 0;
}

.page-faq .record-note {
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(11, 46, 79, .06);
  border-left: 3px solid var(--ink-800);
}

/* 人工支持 */
.page-faq .human-grid {
  row-gap: 28px;
  align-items: start;
}

.page-faq .human-copy .eyebrow {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange-2);
  margin: 0 0 12px;
}

.page-faq .human-copy h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.02em;
  margin: 0 0 14px;
}

.page-faq .human-copy .lede {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: rgba(245, 248, 251, .8);
  margin: 0 0 26px;
}

.page-faq .handoff-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .handoff-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: .9375rem;
  line-height: 1.7;
  color: rgba(245, 248, 251, .84);
}

.page-faq .handoff-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 700;
  color: #1A0A02;
  background: linear-gradient(120deg, var(--orange), var(--orange-2));
}

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

.page-faq .human-card {
  padding: 26px 24px;
  border-radius: var(--radius-lg);
}

.page-faq .human-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 0 0 18px;
}

.page-faq .contact-lines {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .contact-lines li {
  display: grid;
  gap: 5px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(245, 248, 251, .18);
}

.page-faq .contact-lines li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .contact-label {
  font-size: .8125rem;
  color: rgba(245, 248, 251, .62);
}

.page-faq .contact-value {
  font-size: .9375rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .contact-note {
  font-size: .8125rem;
  line-height: 1.7;
  color: rgba(245, 248, 251, .66);
  margin: 0;
}

/* 响应式 */
@media (max-width: 900px) {
  .page-faq .slant-top,
  .page-faq .slant-bottom {
    clip-path: none;
  }

  .page-faq .step-list {
    padding-left: 14px;
  }

  .page-faq .step::before {
    left: -22px;
  }
}

@media (max-width: 620px) {
  .page-faq .hero-stats {
    grid-template-columns: 1fr;
  }

  .page-faq .hero-actions .btn {
    width: 100%;
    text-align: center;
  }

  .page-faq .tab-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }

  .page-faq .tab-btn {
    flex: none;
  }

  .page-faq .step {
    padding: 16px 16px;
  }

  .page-faq .step-num {
    font-size: 1.15rem;
  }
}

@media (min-width: 901px) {
  .page-faq .step {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    column-gap: 20px;
  }

  .page-faq .step-num {
    grid-column: 1 / -1;
    font-size: 1.7rem;
  }

  .page-faq .step-state {
    justify-self: end;
    align-self: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .rail-link,
  .page-faq .tab-btn {
    transition: none;
  }
}