/* 首页套餐目录使用平台 tag 作为唯一切换入口，套餐只展示当前平台。 */
.catalog { position: relative; width: min(calc(100% - 40px), var(--container)); margin: 0 auto; padding: 110px 0 96px; scroll-margin-top: 24px; }
.catalog__intro { max-width: 880px; margin-bottom: 54px; }
.catalog > .catalog__intro { margin-right: auto; margin-left: auto; text-align: center; }
.catalog__intro h2 { margin: 0; font-size: clamp(40px, 4.5vw, 60px); line-height: 1.2; letter-spacing: -.045em; }
.catalog__intro > p:last-child { margin: 20px 0 0; color: var(--muted); line-height: 1.8; }
.platform-tabs { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; padding: 0 0 3px; }
.platform-tabs::before { position: absolute; right: 0; bottom: 0; left: 0; height: 2px; background: linear-gradient(90deg, #079b83, #e87951 34%, #15171a 66%, #6177ea); content: ""; opacity: .72; }
.platform-tab { position: relative; display: flex; min-width: 0; min-height: 92px; align-items: center; gap: 14px; border: 1px solid var(--line); border-bottom-color: transparent; border-radius: 14px 14px 0 0; background: #fff; padding: 16px 20px; color: var(--ink); cursor: pointer; text-align: left; transition: border-color .2s ease, box-shadow .2s ease, color .2s ease, transform .2s ease; }
.platform-tab::after { position: absolute; right: -1px; bottom: -3px; left: -1px; z-index: 1; height: 3px; border-radius: 2px; background: var(--platform-accent); content: ""; opacity: 0; transform: scaleX(.72); transition: opacity .2s ease, transform .2s ease; }
.platform-tab:hover { border-color: color-mix(in srgb, var(--platform-accent) 35%, var(--line)); color: var(--platform-accent); transform: translateY(-2px); }
.platform-tab[aria-selected="true"] { border-color: color-mix(in srgb, var(--platform-accent) 55%, var(--line)); border-bottom-color: transparent; color: var(--platform-accent); box-shadow: 0 16px 34px rgba(11, 22, 37, .08); transform: none; }
.platform-tab[aria-selected="true"]::after { opacity: 1; transform: scaleX(1); }
.platform-tab__icon { display: inline-flex; width: 42px; height: 42px; flex: 0 0 auto; align-items: center; justify-content: center; border-radius: 12px; background: color-mix(in srgb, var(--platform-accent) 9%, #fff); color: var(--platform-accent); }
.platform-tab__icon svg { width: 23px; height: 23px; }
.platform-tab__copy { display: grid; min-width: 0; gap: 4px; }
.platform-tab__copy strong { overflow: hidden; font-size: 17px; letter-spacing: -.015em; text-overflow: ellipsis; white-space: nowrap; }
.platform-tab__copy small { overflow: hidden; color: var(--muted); font-size: 11px; font-weight: 600; letter-spacing: .025em; text-overflow: ellipsis; white-space: nowrap; }
.platform-tab__copy .platform-tab__status { display: inline-flex; width: fit-content; align-items: center; border: 1px solid color-mix(in srgb, var(--platform-accent) 28%, var(--line)); border-radius: 999px; background: color-mix(in srgb, var(--platform-accent) 8%, #fff); padding: 3px 8px; color: var(--platform-accent); font-weight: 700; letter-spacing: .04em; line-height: 1; }
.platform-panels { min-height: 530px; }
.platform-panel { padding-top: 30px; animation: catalog-panel-in .36s ease both; }
.platform-panel[hidden] { display: none; }
.platform-summary { display: grid; grid-template-columns: 54px max-content minmax(240px, 1fr); align-items: center; gap: 18px; min-height: 94px; padding: 8px 4px 26px; border-bottom: 1px solid var(--line); }
.platform-summary__icon { display: inline-flex; width: 52px; height: 52px; align-items: center; justify-content: center; border-radius: 14px; background: var(--platform-accent); color: #fff; box-shadow: 0 12px 24px color-mix(in srgb, var(--platform-accent) 20%, transparent); }
.platform-summary__icon svg { width: 28px; height: 28px; }
.platform-summary__identity { display: grid; grid-template-columns: max-content max-content; align-items: baseline; gap: 12px; padding-right: 24px; border-right: 1px solid var(--line); }
.platform-summary__identity p { grid-column: 2; grid-row: 1; margin: 0; color: var(--muted); font-size: 13px; font-weight: 600; }
.platform-summary__identity h3 { grid-column: 1; grid-row: 1; margin: 0; color: var(--platform-accent); font-size: 34px; letter-spacing: -.04em; }
.platform-summary__description { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.plan-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; padding-top: 28px; }
.plan-card { position: relative; display: flex; min-width: 0; min-height: 440px; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: #fff; padding: 28px; transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
.plan-card::before { position: absolute; top: 0; right: 0; left: 0; height: 3px; background: var(--platform-accent); content: ""; opacity: .82; transform: scaleX(.32); transform-origin: left; transition: transform .25s ease; }
.plan-card:hover { border-color: color-mix(in srgb, var(--platform-accent) 38%, var(--line)); box-shadow: 0 20px 46px rgba(11, 22, 37, .09); transform: translateY(-4px); }
.plan-card:hover::before { transform: scaleX(1); }
.plan-card__header { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.plan-card__header h4 { margin: 0; font-size: 26px; line-height: 1.2; letter-spacing: -.035em; }
.plan-card__header span { color: var(--platform-accent); font-size: 12px; font-weight: 700; white-space: nowrap; }
.plan-card__price { display: grid; gap: 9px; margin-top: 23px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.plan-card__subscription { display: flex; flex-wrap: wrap; align-items: baseline; gap: 7px; }
.plan-card__subscription strong { color: var(--platform-accent); font-size: clamp(34px, 3.2vw, 45px); line-height: 1; letter-spacing: -.055em; white-space: nowrap; }
.plan-card__subscription em { color: var(--muted); font-size: 12px; font-style: normal; white-space: nowrap; }
.plan-card__official { color: var(--muted); font-size: 12px; }
.plan-card__official s { margin-left: 5px; text-decoration-color: color-mix(in srgb, var(--platform-accent) 60%, #8b96a5); }
.plan-card__description { margin: 21px 0 0; color: #344154; font-size: 14px; line-height: 1.7; }
.plan-card__benefits { display: grid; gap: 10px; margin: 16px 0 24px; padding: 0; color: var(--muted); font-size: 13px; line-height: 1.55; list-style: none; }
.plan-card__benefits li { display: flex; align-items: flex-start; gap: 9px; }
.plan-card__benefits li span { display: inline-flex; width: 18px; height: 18px; flex: 0 0 auto; align-items: center; justify-content: center; margin-top: 1px; border: 1px solid color-mix(in srgb, var(--platform-accent) 70%, #fff); border-radius: 50%; color: var(--platform-accent); font-size: 11px; font-weight: 800; }
.plan-card__actions { display: grid; gap: 13px; margin-top: auto; }
.plan-row__price { position: relative; display: flex; min-width: 0; flex-direction: column; gap: 9px; padding-left: 20px; }
.plan-row__price::before { position: absolute; top: 2px; bottom: 2px; left: 0; width: 2px; border-radius: 1px; background: color-mix(in srgb, var(--platform-accent) 48%, #fff); content: ""; }
.plan-price__official, .plan-price__subscription { display: flex; align-items: baseline; gap: 7px; }
.plan-price__official small, .plan-price__subscription small { color: var(--muted); font-size: 11px; font-style: normal; font-weight: 600; white-space: nowrap; }
.plan-price__official s { color: #8b96a5; font-size: 13px; text-decoration-color: color-mix(in srgb, var(--platform-accent) 65%, #8b96a5); text-decoration-thickness: 1px; }
.plan-price__subscription { flex-wrap: wrap; gap: 3px 7px; }
.plan-price__subscription small { width: 100%; color: var(--platform-accent); }
.plan-price__subscription strong { color: var(--ink); font-size: clamp(23px, 2vw, 30px); line-height: 1; letter-spacing: -.04em; white-space: nowrap; }
.plan-price__subscription em { color: var(--muted); font-size: 11px; font-style: normal; white-space: nowrap; }
.plan-order { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; border: 1px solid var(--platform-accent); border-radius: 9px; background: color-mix(in srgb, var(--platform-accent) 10%, #fff); padding: 0 14px; color: var(--ink); font-size: 13px; font-weight: 700; transition: background .18s ease, color .18s ease, transform .18s ease; white-space: nowrap; }
.plan-order:hover { background: var(--platform-accent); color: var(--night); transform: translateY(-1px); }
.plan-card .plan-order { min-height: 46px; background: var(--platform-accent); color: #fff; }
.plan-card .plan-order:hover { background: var(--ink); color: #fff; }
.plan-detail { color: #4d6ff4; font-size: 11px; font-weight: 700; text-align: center; white-space: nowrap; }
.plan-detail span { display: inline-block; transition: transform .18s ease; }
.plan-detail:hover span { transform: translateX(3px); }
.plan-card .plan-detail { color: var(--platform-accent); font-size: 12px; }
.catalog-coming-soon { display: grid; min-height: 230px; grid-column: 1 / -1; place-content: center; justify-items: center; gap: 12px; border: 1px dashed color-mix(in srgb, var(--platform-accent) 32%, var(--line)); border-radius: 14px; background: color-mix(in srgb, var(--platform-accent) 3%, #fff); padding: 36px; text-align: center; }
.catalog-coming-soon strong { color: var(--platform-accent); font-size: 25px; letter-spacing: -.025em; }
.catalog-coming-soon p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.catalog > .catalog__notice { margin: 34px auto 0; text-align: center; }
.catalog__notice { color: #8b96a5; font-size: 12px; line-height: 1.8; }

@keyframes catalog-panel-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 独立产品页把套餐权益完整展开，作为精准关键词的深度落地内容。 */
.product-hero { position: relative; overflow: hidden; background: var(--night); color: #fff; }
.product-hero::after { position: absolute; top: 0; right: -8%; width: 48%; height: 100%; background: radial-gradient(circle, color-mix(in srgb, var(--platform-accent) 25%, transparent), transparent 65%); content: ""; }
.product-hero__inner { position: relative; z-index: 1; width: min(calc(100% - 40px), var(--container)); margin: 0 auto; padding: 96px 0 110px; }
.breadcrumb { display: flex; gap: 10px; margin-bottom: 52px; color: rgba(255, 255, 255, .5); font-size: 13px; }
.breadcrumb a:hover { color: #fff; }
.product-hero__vendor { margin: 0 0 16px; color: var(--platform-accent); font-size: 14px; font-weight: 700; letter-spacing: .1em; }
.product-hero h1 { max-width: 960px; margin: 0; font-size: clamp(46px, 5.5vw, 76px); line-height: 1.15; letter-spacing: -.05em; }
.product-hero__inner > p:not(.product-hero__vendor) { max-width: 760px; margin: 28px 0 0; color: rgba(255, 255, 255, .68); font-size: 18px; line-height: 1.9; }
.product-hero__actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 36px; }
.product-detail { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; padding: 108px 0; }
.detail-plan-list { border-top: 1px solid var(--line); }
.detail-plan { display: grid; grid-template-columns: 86px minmax(0, 1.15fr) minmax(180px, .72fr) minmax(290px, .78fr); align-items: center; gap: 28px; min-height: 150px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.detail-plan__index { color: #cad4e1; font-size: 36px; font-weight: 700; }
.detail-plan h3 { margin: 0; font-size: 24px; }
.detail-plan p { margin: 10px 0 0; color: var(--muted); line-height: 1.7; }
.detail-plan ul { margin: 0; padding: 0; color: var(--muted); font-size: 14px; line-height: 2; list-style: none; }
.detail-plan li::before { margin-right: 9px; color: var(--mint); content: "✓"; }
.detail-plan__purchase { display: grid; grid-template-columns: minmax(150px, 1fr) 116px; align-items: center; gap: 18px; }
.product-faq { display: grid; grid-template-columns: .65fr 1.35fr; gap: 70px; width: min(calc(100% - 40px), var(--container)); margin: 0 auto; padding: 20px 0 108px; }
.product-faq h2 { margin: 0; font-size: clamp(34px, 3.5vw, 48px); line-height: 1.25; }
.subscription-tutorial { padding: 30px 0 34px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.subscription-tutorial__label { margin: 0 0 7px; color: #4d6ff4; font-size: 11px; font-weight: 800; letter-spacing: .1em; }
.subscription-tutorial > h3 { margin: 0 0 14px; font-size: 25px; letter-spacing: -.02em; }
.subscription-tutorial ol { margin: 0; padding: 0; list-style: none; }
.subscription-tutorial li { display: grid; grid-template-columns: 40px 1fr; gap: 16px; padding: 17px 0; }
.subscription-tutorial li + li { border-top: 1px solid color-mix(in srgb, var(--line) 72%, transparent); }
.subscription-tutorial__index { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; border: 1px solid #b7c5fb; border-radius: 50%; background: #f5f7ff; color: #4d6ff4; font-size: 13px; font-weight: 800; }
.subscription-tutorial h4 { margin: 4px 0 0; font-size: 16px; line-height: 1.5; }
.subscription-tutorial a { display: inline-flex; align-items: center; gap: 7px; margin-top: 8px; color: #4d6ff4; font-size: 14px; font-weight: 700; text-decoration: underline; text-decoration-color: #c4cffb; text-underline-offset: 4px; }
.subscription-tutorial a span { font-size: 12px; transition: transform .18s ease; }
.subscription-tutorial a:hover span { transform: translate(2px, -2px); }
.subscription-tutorial a:focus-visible { border-radius: 3px; outline: 3px solid rgba(77, 111, 244, .24); outline-offset: 3px; }
.subscription-tutorial li p { margin: 8px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.related-products { width: min(calc(100% - 40px), var(--container)); margin: 0 auto 110px; border-top: 1px solid var(--line); }
.related-products > p { margin: 30px 0 18px; color: var(--muted); font-size: 13px; }
.related-products > div { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.related-products a { display: flex; min-height: 84px; align-items: center; justify-content: space-between; padding: 0 26px; font-size: 18px; font-weight: 700; }
.related-products a + a { border-left: 1px solid var(--line); }
.related-products a:hover { background: var(--ice); }

@media (max-width: 1100px) {
  .platform-tab { gap: 11px; padding-right: 14px; padding-left: 14px; }
  .platform-tab__icon { width: 38px; height: 38px; border-radius: 10px; }
  .platform-tab__copy strong { font-size: 15px; }
  .plan-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .platform-tab__copy small { display: none; }
  .platform-summary { grid-template-columns: 52px max-content minmax(180px, 1fr); }
  .platform-summary__identity { grid-template-columns: 1fr; gap: 3px; }
  .platform-summary__identity p { grid-column: 1; grid-row: 1; }
  .platform-summary__identity h3 { grid-column: 1; grid-row: 2; font-size: 29px; }
  .detail-plan { grid-template-columns: 62px 1fr; }
  .detail-plan ul, .detail-plan__purchase { grid-column: 2; justify-self: start; }
  .detail-plan__purchase { width: min(100%, 340px); }
  .product-faq { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .catalog { width: min(calc(100% - 32px), var(--container)); padding: 78px 0 70px; }
  .catalog > .catalog__intro { margin-bottom: 38px; text-align: left; }
  .catalog__intro h2 { font-size: 38px; }
  .platform-tabs { grid-auto-columns: minmax(184px, 72vw); grid-auto-flow: column; grid-template-columns: none; gap: 10px; overflow-x: auto; overscroll-behavior-inline: contain; padding: 5px 1px 12px; scroll-padding-left: 1px; scroll-snap-type: inline mandatory; scrollbar-width: none; }
  .platform-tabs::-webkit-scrollbar { display: none; }
  .platform-tabs::before { display: none; }
  .platform-tab { min-height: 78px; border-bottom-color: var(--line); border-radius: 12px; padding: 13px 15px; scroll-snap-align: start; }
  .platform-tab::after { right: 10px; bottom: -1px; left: 10px; }
  .platform-tab:hover, .platform-tab[aria-selected="true"] { transform: none; }
  .platform-tab__copy small { display: block; }
  .platform-panels { min-height: 0; }
  .platform-panel { padding-top: 22px; }
  .platform-summary { grid-template-columns: 46px 1fr; gap: 13px; padding: 8px 1px 22px; }
  .platform-summary__icon { width: 46px; height: 46px; border-radius: 12px; }
  .platform-summary__icon svg { width: 25px; height: 25px; }
  .platform-summary__identity { padding-right: 0; border-right: 0; }
  .platform-summary__identity h3 { font-size: 27px; }
  .platform-summary__description { grid-column: 1 / -1; margin-top: 3px; font-size: 14px; }
  .plan-grid { grid-template-columns: 1fr; gap: 16px; padding-top: 20px; }
  .plan-card { min-height: 410px; padding: 24px; }
  .plan-card__subscription strong { font-size: 39px; }
  .plan-row__price { min-height: 68px; justify-content: center; padding: 13px 16px 13px 20px; border-radius: 10px; background: color-mix(in srgb, var(--platform-accent) 7%, #fff); }
  .plan-row__price::before { top: 12px; bottom: 12px; left: 8px; }
  .plan-price__subscription strong { font-size: 28px; }
  .plan-order { min-width: 112px; }
  .product-hero__inner, .product-detail, .product-faq, .related-products { width: min(calc(100% - 32px), var(--container)); }
  .product-hero__inner { padding: 62px 0 82px; }
  .breadcrumb { margin-bottom: 36px; }
  .detail-plan { grid-template-columns: 48px 1fr; }
  .detail-plan__purchase { width: 100%; grid-template-columns: minmax(138px, 1fr) minmax(112px, .9fr); gap: 12px; }
  .detail-plan__purchase .plan-row__price { min-height: 0; justify-content: flex-start; padding-top: 0; padding-right: 0; padding-bottom: 0; background: transparent; }
  .detail-plan__purchase .plan-row__price::before { top: 2px; bottom: 2px; left: 0; }
  .related-products > div { grid-template-columns: 1fr; }
  .related-products a + a { border-top: 1px solid var(--line); border-left: 0; }
}