/* 帮助中心：列表页 */
.page-help .header { background: #fff; color: var(--t1); }
.page-help .logo__face--light { opacity: 0; }
.page-help .logo__face--dark { opacity: 1; }
.page-help .header:not(.is-solid):not(.is-drop) { background: transparent; color: #fff; }
.page-help .header:not(.is-solid):not(.is-drop) .logo__face--light { opacity: 1; }
.page-help .header:not(.is-solid):not(.is-drop) .logo__face--dark { opacity: 0; }

/* 顶部横幅 */
.help-banner { position: relative; height: 100vh; overflow: hidden; background: var(--bg-dark); }
.help-banner::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(0,0,0,.62) 0%, rgba(0,0,0,.4) 18%, rgba(0,0,0,.44) 60%, rgba(0,0,0,.55) 100%); }
.help-banner__img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center 38%; animation: helpHeroIn 1.8s var(--ease-aos) both; }
.help-banner__copy { position: absolute; inset: 0; z-index: 2; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; color: #fff; animation: helpCopyIn 1.1s .22s var(--ease-aos) both; }
.help-banner__copy h1 { display: flex; flex-direction: column; gap: .12rem; font-weight: 600; line-height: var(--lh-133); text-shadow: 4px 4px 8px rgba(0,0,0,.25); }
.help-banner__eyebrow { font-size: var(--fs-36); font-weight: 400; }
.help-banner__title { font-size: var(--fs-52); font-weight: 600; }
.help-banner__crumb { position: absolute; left: var(--pad-x); bottom: .48rem; z-index: 2; display: flex; align-items: center; gap: .12rem; padding: .12rem .28rem; border-radius: var(--r-pill); background: rgba(0,0,0,.35); backdrop-filter: blur(10px); font-size: var(--fs-16); line-height: var(--lh-15); color: #fff; transition: background-color var(--dur-1); }
.help-banner__crumb:hover { background: rgba(0,0,0,.22); }
.help-banner__crumb a { color: var(--w70); transition: color var(--dur-2); }
.help-banner__crumb a:hover { color: var(--vi); }
.help-banner__arrow { width: 1em; height: 1em; color: var(--w40); transition: transform var(--dur-1); }
.help-banner__crumb a:hover + .help-banner__arrow { transform: translateX(.04rem); }
@keyframes helpHeroIn { from { transform: scale(1.07); } to { transform: scale(1); } }
@keyframes helpCopyIn { from { opacity: 0; transform: translateY(.22rem); } to { opacity: 1; transform: none; } }

.help-eyebrow { display: flex; align-items: center; gap: .1rem; font-size: var(--fs-14); font-weight: 500; letter-spacing: .06em; line-height: 1.4; color: var(--vi); }
.help-eyebrow::before { content: ""; width: .24rem; height: 1px; background: var(--vi); }

/* 常见问题 */
.help-faq { padding: var(--sec-top) var(--pad-x) var(--sec-bottom); background: var(--bg2); }
.help-faq__head { display: flex; align-items: flex-end; justify-content: space-between; gap: .6rem; }
.help-faq__head h2 { margin-top: .12rem; font-size: var(--fs-50); font-weight: 600; line-height: var(--lh-133); }
.help-faq__desc { max-width: 4.4rem; font-size: var(--fs-18); line-height: 1.8; color: var(--t2); text-align: right; }

.help-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .24rem; margin-top: .56rem; }
.help-card { position: relative; display: flex; flex-direction: column; min-height: 2.1rem; padding: .3rem .34rem .28rem; border: 1px solid rgba(0,0,0,.07); border-radius: var(--r-card); background: #fff; overflow: hidden; transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2), border-color var(--dur-2); }
.help-card::before { content: ""; position: absolute; top: 0; left: 0; width: 0; height: 2px; background: var(--vi); transition: width .45s var(--ease); }
.help-card:hover { transform: translateY(-.05rem); border-color: rgba(231,0,18,.24); box-shadow: var(--sh-card); }
.help-card:hover::before { width: 100%; }
.help-card__top { display: flex; align-items: center; justify-content: space-between; gap: .2rem; }
.help-card__num { font-size: var(--fs-14); font-weight: 500; letter-spacing: .04em; color: var(--t3); font-variant-numeric: tabular-nums; transition: color var(--dur-2); }
.help-card:hover .help-card__num { color: var(--vi); }
.help-card__arrow { display: flex; align-items: center; justify-content: center; width: .34rem; height: .34rem; border: 1px solid var(--ln1); border-radius: 50%; color: var(--t2); transition: background-color var(--dur-2), border-color var(--dur-2), color var(--dur-2), transform var(--dur-2); }
.help-card__arrow .icon { width: .16rem; height: .16rem; }
.help-card:focus-visible { outline: 2px solid var(--vi); outline-offset: 2px; }
.help-pager a:focus-visible { outline: 2px solid var(--vi); outline-offset: 2px; }
.help-card:hover .help-card__arrow { background: var(--vi); border-color: var(--vi); color: #fff; transform: rotate(-45deg); }
.help-card h3 { margin-top: .16rem; padding-right: .3rem; font-size: var(--fs-24); font-weight: 600; line-height: 1.5; color: var(--t1); }
.help-card__desc { margin-top: .1rem; font-size: var(--fs-20); line-height: 1.8; color: var(--t2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.help-card__more { display: inline-flex; align-items: center; gap: .08rem; margin-top: auto; padding-top: .22rem; font-size: var(--fs-14); color: var(--t3); transition: color var(--dur-2); }
.help-card__more .icon { width: .14rem; height: .14rem; transition: transform var(--dur-2); }
.help-card:hover .help-card__more { color: var(--vi); }
.help-card:hover .help-card__more .icon { transform: translateX(.05rem); }
.help-card.is-last { grid-column: 1 / -1; width: calc(50% - .12rem); justify-self: center; }
.help-card[hidden] { display: none; }
.help-js .help-card { opacity: 0; }
.help-js .help-card.is-in { opacity: 1; animation: helpCardIn .55s var(--ease-aos) backwards; animation-delay: var(--d, 0ms); }
@keyframes helpCardIn { from { opacity: 0; transform: translateY(.18rem); } to { opacity: 1; transform: none; } }

.help-pager { margin-top: .5rem; }
.help-pager[hidden] { display: none; }
.help-pager__nums { display: flex; align-items: center; gap: .12rem; width: auto; height: auto; }
.help-pager .is-disabled { pointer-events: none; }

/* 深色咨询条 */
.help-cta { position: relative; display: flex; align-items: center; justify-content: space-between; gap: .6rem; padding: .7rem var(--pad-x); background: var(--bg-dark); color: #fff; overflow: hidden; }
.help-cta::before { content: ""; position: absolute; right: -1.2rem; top: -1.6rem; width: 4.4rem; height: 4.4rem; border-radius: 50%; background: radial-gradient(circle, rgba(231,0,18,.34), transparent 68%); pointer-events: none; }
.help-cta__copy, .help-cta__actions { position: relative; z-index: 1; }
.help-cta__copy h2 { margin-top: .12rem; font-size: var(--fs-50); font-weight: 600; line-height: 1.3; }
.help-cta__copy > p:not(.help-eyebrow) { max-width: 6.4rem; margin-top: .14rem; font-size: var(--fs-18); line-height: 1.8; color: var(--w70); }
.help-cta__actions { display: flex; align-items: center; gap: .32rem; flex: none; }
.help-cta__phone { display: flex; flex-direction: column; gap: .04rem; }
.help-cta__phone span { font-size: var(--fs-14); letter-spacing: .08em; color: var(--w40); }
.help-cta__phone strong { font-size: var(--fs-36); font-weight: 600; line-height: 1.2; font-variant-numeric: tabular-nums; transition: color var(--dur-2); }
.help-cta__phone:hover strong { color: var(--vi); }

/* 表单 */
.help-form { padding: var(--sec-top) var(--pad-x) var(--sec-bottom); background: var(--bg2); scroll-margin-top: .9rem; }

/* 滚动出现 */
.help-js [data-reveal] { opacity: 0; transform: translateY(.22rem); transition: opacity var(--dur-4) var(--ease-aos), transform var(--dur-4) var(--ease-aos); transition-delay: var(--d, 0ms); will-change: opacity, transform; }
.help-js [data-reveal].is-in { opacity: 1; transform: none; }

@media (max-width: 1200px) {
  .help-banner__eyebrow { font-size: 18px; }
  .help-banner__title { font-size: 32px; }
  .help-card { min-height: 210px; padding: 22px 24px 20px; }
  .help-card h3 { font-size: 19px; }
  .help-card__desc { font-size: 14px; }
  .help-card__more { padding-top: 16px; }
  .help-faq__head h2 { font-size: 32px; }
  .help-faq__desc { font-size: 14px; }
  .help-cta__copy h2 { font-size: 32px; }
  .help-cta__copy > p:not(.help-eyebrow) { font-size: 14px; }
  .help-cta__phone strong { font-size: 26px; }
}

@media (max-width: 768px) {
  .help-banner__eyebrow { font-size: 18px; }
  .help-banner__title { font-size: 28px; }
  .help-banner__crumb { left: 16px; bottom: 68px; padding: 6px 12px; font-size: 12px; }
  .help-faq { padding: 48px 20px 64px; }
  .help-faq__head { flex-direction: column; align-items: flex-start; gap: 10px; }
  .help-faq__head h2 { margin-top: 8px; font-size: 26px; }
  .help-faq__desc { max-width: none; font-size: 13px; text-align: left; }
  .help-eyebrow { font-size: 11px; }
  .help-grid { grid-template-columns: 1fr; gap: 10px; margin-top: 22px; }
  .help-card { min-height: 0; padding: 20px 18px 18px; }
  .help-card h3 { margin-top: 10px; padding-right: 24px; font-size: 17px; line-height: 1.5; }
  .help-card__desc { margin-top: 6px; font-size: 13px; line-height: 1.75; -webkit-line-clamp: 3; }
  .help-card__more { padding-top: 14px; font-size: 12px; }
  .help-card__arrow { width: 28px; height: 28px; }
  .help-card__arrow .icon { width: 13px; height: 13px; }
  .help-card.is-last { grid-column: auto; width: auto; justify-self: stretch; }
  .help-pager { margin-top: 28px; }
  .help-pager a { width: 36px; height: 36px; }
  .help-pager__nums { gap: 6px; }
  .help-cta { flex-direction: column; align-items: flex-start; gap: 26px; padding: 48px 20px; }
  .help-cta__copy h2 { margin-top: 8px; font-size: 26px; }
  .help-cta__copy > p:not(.help-eyebrow) { max-width: none; font-size: 14px; }
  .help-cta__actions { width: 100%; align-items: flex-end; justify-content: space-between; gap: 16px; }
  .help-cta__phone strong { font-size: 24px; }
  .help-form { padding: 48px 20px 56px; }
}

@media (hover: none) {
  .help-card:hover { transform: none; box-shadow: none; border-color: rgba(0,0,0,.07); }
  .help-card:hover::before { width: 0; }
  .help-card:hover .help-card__arrow { background: none; border-color: var(--ln1); color: var(--t2); transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .help-banner__img,
  .help-banner__copy,
  .help-js .help-card.is-in { animation: none; }
  .help-js .help-card { opacity: 1; }
  .help-js [data-reveal] { opacity: 1; transform: none; transition: none; }
  .help-card,
  .help-card::before,
  .help-card__arrow,
  .help-card__more .icon { transition: none; }
}