/* ===== 项目中心 /projects/ 页面专属样式 ===== */
.page-products {
  --prod-gap: clamp(16px, 2.6vw, 28px);
  --prod-offset: clamp(16px, 3vw, 40px);
  --prod-rule: rgba(28, 28, 28, .14);
  --prod-paper: #FFFDF8;
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding-top: clamp(16px, 3vw, 26px);
}

/* ---------- 首屏框景 ---------- */
.page-products .prod-hero {
  padding-top: clamp(14px, 2.6vw, 24px);
}

.page-products .prod-hero-frame {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  padding: clamp(22px, 4.4vw, 52px);
  background: var(--prod-paper);
}

.page-products .prod-hero h1 {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(30px, 5.6vw, 54px);
  line-height: 1.1;
  letter-spacing: -.015em;
}

.page-products .prod-hero .lead {
  margin: clamp(14px, 2.4vw, 20px) 0 0;
  max-width: 46ch;
}

.page-products .stamp-row {
  margin-top: clamp(18px, 3vw, 26px);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .prod-hero-index {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
}

.page-products .prod-steps {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .prod-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-products .prod-step-num {
  font-family: var(--font-num);
  font-size: 21px;
  font-weight: 700;
  line-height: 1;
  color: var(--pass);
  border-bottom: 2px solid var(--pass);
  padding-bottom: 3px;
}

.page-products .prod-step-body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray);
}

.page-products .prod-step-body strong {
  display: block;
  margin-bottom: 2px;
  font-size: 16px;
  color: var(--ink);
}

@media (min-width: 900px) {
  .page-products .prod-hero-frame {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .prod-hero-index {
    border-top: 0;
    border-left: 2px solid var(--ink);
    padding-top: 0;
    padding-left: clamp(18px, 2.6vw, 30px);
  }
}

/* ---------- 通用区块节奏 ---------- */
.page-products .prod-section {
  padding-top: clamp(56px, 8vw, 104px);
}

.page-products .prod-section[id] {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-products .prod-figure {
  margin: 0 0 clamp(24px, 4vw, 40px);
}

.page-products .prod-figure--tight {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-products .figure-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
}

.page-products .figure-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--gray);
}

/* ---------- 01 费用与价格两栏 ---------- */
.page-products .price-pair {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  align-items: start;
}

.page-products .price-col {
  position: relative;
  padding: clamp(20px, 3.4vw, 34px);
  border: 1px solid var(--line-strong);
  background: #fff;
  box-shadow: var(--shadow-card);
}

.page-products .price-col--fee {
  border-top: 4px solid var(--ink);
}

.page-products .price-col--pass {
  border-top: 4px solid var(--pass);
  background: var(--mist);
}

.page-products .price-headline {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.page-products .price-tagline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 18px;
}

.page-products .price-figure {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 14px 0 20px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line-strong);
}

.page-products .price-value {
  font-family: var(--font-num);
  font-size: clamp(34px, 5.4vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--deep);
}

.page-products .price-unit {
  font-size: 14px;
  color: var(--gray);
}

.page-products .price-rows {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-products .price-row {
  display: grid;
  gap: 3px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-products .price-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .price-row dt {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .price-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--gray);
}

@media (min-width: 860px) {
  .page-products .price-pair {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 56px);
  }
  .page-products .price-col--pass {
    margin-top: var(--prod-offset);
  }
}

/* ---------- 对照表 ---------- */
.page-products .prod-table-wrap {
  margin-top: clamp(30px, 5vw, 52px);
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  background: #fff;
  box-shadow: var(--shadow-card);
  -webkit-overflow-scrolling: touch;
}

.page-products .prod-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .prod-table caption {
  caption-side: top;
  padding: 14px 18px;
  text-align: left;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--gray);
  border-bottom: 1px solid var(--line);
}

.page-products .prod-table th,
.page-products .prod-table td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-table thead th {
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  white-space: nowrap;
}

.page-products .prod-table tbody th {
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.page-products .prod-table tbody td {
  color: var(--gray);
}

.page-products .prod-table tbody tr:last-child th,
.page-products .prod-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .prod-table tbody tr:hover th,
.page-products .prod-table tbody tr:hover td {
  background: var(--mist);
}

/* ---------- 02 版本与授权 ---------- */
.page-products .ver-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(18px, 3vw, 28px) 0 clamp(20px, 3vw, 32px);
}

.page-products .ver-tab {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}

.page-products .ver-tab:hover,
.page-products .ver-tab:focus-visible {
  background: var(--pass);
  border-color: var(--pass);
  color: #fff;
}

.page-products .ver-grid {
  display: grid;
  gap: clamp(16px, 2.6vw, 26px);
  align-items: start;
}

.page-products .ver-card {
  scroll-margin-top: calc(var(--header-h) + 28px);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line-strong);
  background: #fff;
  box-shadow: var(--shadow-card);
}

.page-products .ver-card--mid {
  background: var(--ink);
  border-color: var(--ink);
  box-shadow: 6px 6px 0 var(--pass);
}

.page-products .ver-title {
  margin: 8px 0 16px;
  font-family: var(--font-head);
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--ink);
}

.page-products .ver-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .ver-list li {
  display: grid;
  gap: 2px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.65;
  color: var(--gray);
}

.page-products .ver-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .ver-list .key {
  color: var(--pass);
  font-weight: 700;
}

.page-products .ver-card--mid .card-label {
  color: var(--pass);
}

.page-products .ver-card--mid .ver-title {
  color: var(--paper);
}

.page-products .ver-card--mid .ver-list li {
  border-bottom-color: var(--on-dark-line);
  color: var(--on-dark);
}

.page-products .ver-card--mid .ver-list .key {
  color: var(--pass);
}

@media (min-width: 760px) {
  .page-products .ver-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .ver-card--mid {
    margin-top: calc(var(--prod-offset) * .5);
  }
}

/* ---------- 03 计费周期 ---------- */
.page-products .cycle-rail {
  height: 26px;
  margin: clamp(6px, 1.4vw, 12px) 0 clamp(24px, 4vw, 40px);
  border-bottom: 1px solid var(--line-strong);
  background-image: repeating-linear-gradient(90deg, var(--silver) 0 1px, transparent 1px 26px);
  background-size: 26px 12px;
  background-position: bottom left;
  background-repeat: repeat-x;
}

.page-products .cycle-layout {
  display: grid;
  gap: clamp(22px, 3.6vw, 38px);
  align-items: start;
}

.page-products .cycle-cards {
  display: grid;
  gap: clamp(14px, 2.2vw, 20px);
}

.page-products .cycle-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 4px 10px;
  padding: clamp(16px, 2.4vw, 22px) clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--pass);
  background: var(--prod-paper);
}

.page-products .cycle-num {
  font-family: var(--font-num);
  font-size: clamp(30px, 4.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
}

.page-products .cycle-unit {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--pass);
}

.page-products .cycle-text {
  grid-column: 1 / -1;
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray);
}

.page-products .cycle-renew {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  margin-top: clamp(30px, 5vw, 50px);
  padding-top: clamp(24px, 4vw, 36px);
  border-top: 1px solid var(--line-strong);
}

.page-products .renew-text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray);
}

.page-products .renew-text a {
  color: var(--deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (min-width: 900px) {
  .page-products .cycle-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
}

@media (min-width: 760px) {
  .page-products .cycle-renew {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 04 常见计费问题 ---------- */
.page-products .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-products .faq-accordion {
  border-top: 1px solid var(--line-strong);
}

.page-products .faq-item {
  border-bottom: 1px solid var(--line-strong);
}

.page-products .accordion-trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: clamp(16px, 2.4vw, 22px) 2px;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-head);
  font-size: clamp(16px, 1.8vw, 18px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink);
}

.page-products .qa-mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  transition: background .18s ease, border-color .18s ease;
}

.page-products .qa-mark::before,
.page-products .qa-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 2px;
  background: var(--ink);
  transform: translate(-50%, -50%);
}

.page-products .qa-mark::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: opacity .18s ease, transform .18s ease;
}

.page-products [data-accordion-open] .qa-mark {
  background: var(--pass);
  border-color: var(--pass);
}

.page-products [data-accordion-open] .qa-mark::before,
.page-products [data-accordion-open] .qa-mark::after {
  background: #fff;
}

.page-products [data-accordion-open] .qa-mark::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-products .accordion-panel {
  overflow: hidden;
}

.page-products .accordion-body {
  padding: 0 2px clamp(16px, 2.4vw, 22px);
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--gray);
}

.page-products .accordion-body p {
  margin: 0;
}

.page-products .accordion-body a {
  color: var(--deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (min-width: 960px) {
  .page-products .faq-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}

/* ---------- 05 服务清单 ---------- */
.page-products .service-grid {
  display: grid;
  gap: clamp(14px, 2.2vw, 22px);
}

.page-products .service-card {
  display: grid;
  gap: 8px;
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.page-products .service-card:hover,
.page-products .service-card:focus-visible {
  transform: translate(-3px, -3px);
  border-color: var(--pass);
  box-shadow: 6px 6px 0 var(--pass);
}

.page-products .service-num {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--pass);
}

.page-products .service-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(17px, 2vw, 19px);
  font-weight: 700;
  line-height: 1.35;
}

.page-products .service-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--gray);
}

@media (min-width: 640px) {
  .page-products .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-products .service-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 咨询条 ---------- */
.page-products .prod-cta {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  margin-top: clamp(32px, 5vw, 56px);
  padding: clamp(24px, 4vw, 44px);
  background: var(--ink);
  border-left: 6px solid var(--pass);
}

.page-products .prod-cta .card-label {
  color: var(--pass);
}

.page-products .prod-cta h3 {
  margin: 8px 0 10px;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--paper);
}

.page-products .prod-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--on-dark);
}

.page-products .prod-cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-products .prod-cta .copy-btn {
  border-color: var(--on-dark-line);
  background: transparent;
  color: var(--paper);
}

.page-products .prod-cta .copy-btn:hover,
.page-products .prod-cta .copy-btn:focus-visible {
  border-color: var(--pass);
  color: var(--pass);
}

@media (min-width: 820px) {
  .page-products .prod-cta {
    grid-template-columns: minmax(0, 1.6fr) auto;
    align-items: center;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}