/* ============================================
   观阵 · PreVue 产品模块样式
   首页软件产品区 + 产品详情页共用
   ============================================ */

/* ---------- 截图框 ---------- */
.shot {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #05080f;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(2, 8, 20, 0.55);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
}

.shot .cap {
  position: absolute;
  left: 14px;
  bottom: 12px;
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 12px;
  letter-spacing: 1.5px;
  color: #cfe3f5;
  background: rgba(5, 8, 15, 0.78);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(148, 184, 255, 0.18);
}

.shot:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 26px 70px rgba(56, 189, 248, 0.16);
}

/* ---------- 首页：产品介绍区 ---------- */
.product-eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12px;
  letter-spacing: 2px;
  font-weight: 600;
  color: var(--accent-2);
  border: 1px solid rgba(34, 211, 238, 0.3);
  background: rgba(34, 211, 238, 0.07);
}

.product-intro-text h3 {
  font-size: 26px;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.product-intro-text h3 span {
  font-size: 17px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 1px;
  margin-left: 10px;
}

.product-intro-visual .shot {
  border-radius: var(--radius);
}

.product-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 22px;
}

.product-kpi {
  margin-top: 36px;
  margin-bottom: 26px;
}

.product-more {
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.product-more a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.product-more a:hover {
  text-decoration: underline;
}

/* ---------- 详情页：页首 ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 150px 0 84px;
}

.page-hero .hero-bg {
  background:
    radial-gradient(600px 320px at 12% 16%, rgba(56, 189, 248, 0.15), transparent 60%),
    radial-gradient(700px 360px at 88% 26%, rgba(129, 140, 248, 0.13), transparent 60%),
    radial-gradient(800px 400px at 50% 95%, rgba(34, 211, 238, 0.08), transparent 60%);
}

.breadcrumb {
  position: relative;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 22px;
  letter-spacing: 1px;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb .sep {
  margin: 0 8px;
  opacity: 0.5;
}

.breadcrumb .cur {
  color: var(--accent-2);
}

.page-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.02fr 1fr;
  gap: 52px;
  align-items: center;
}

.page-hero h1 {
  font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 800;
  letter-spacing: 1.5px;
  line-height: 1.3;
  margin: 18px 0 20px;
}

.page-hero .sub {
  color: var(--muted);
  font-size: 16px;
  max-width: 560px;
}

.page-hero .sub strong {
  color: var(--text);
}

.page-hero .hero-tags {
  justify-content: flex-start;
  margin: 26px 0;
}

.page-hero .hero-cta {
  justify-content: flex-start;
}

.page-hero .kpi {
  margin: 44px 0 0;
}

.hero-shot .cap {
  font-size: 13px;
  letter-spacing: 2px;
}

/* ---------- 详情页：通用段落标题 ---------- */
.sec-lead {
  max-width: 760px;
  margin: 0 auto 44px;
  text-align: center;
  color: var(--muted);
  font-size: 15px;
}

.sec-lead strong {
  color: var(--text);
}

/* ---------- 为什么：三步卡 ---------- */
.why-steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 18px;
  align-items: stretch;
  margin-bottom: 40px;
}

.why-step {
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--card-2), var(--card));
}

.why-step .idx {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--accent-2);
  margin-bottom: 10px;
}

.why-step h4 {
  font-size: 17px;
  margin-bottom: 8px;
}

.why-step h4 em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.why-step p {
  color: var(--muted);
  font-size: 13.5px;
}

.why-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 22px;
}

.why-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 34px;
}

.quote-box {
  max-width: 860px;
  margin: 0 auto;
  padding: 20px 30px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: rgba(56, 189, 248, 0.04);
  text-align: center;
  color: var(--muted);
  font-size: 15px;
}

.quote-box em {
  font-style: normal;
  color: var(--accent-2);
  font-weight: 600;
}

/* ---------- 定位：整合 + 五笔账 ---------- */
.integration-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}

.base-strip {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
  padding: 20px 30px;
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius);
  background: linear-gradient(90deg, rgba(56, 189, 248, 0.09), rgba(56, 189, 248, 0.02));
  margin-bottom: 30px;
}

.base-strip .lbl {
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  white-space: nowrap;
}

.base-strip p {
  color: var(--muted);
  font-size: 14.5px;
}

.base-strip p b {
  color: var(--text);
}

.accounts {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.account-card {
  padding: 20px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--card-2), var(--card));
  transition: transform 0.3s, border-color 0.3s;
}

.account-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.account-card .no {
  display: block;
  font-size: 12px;
  color: var(--accent-2);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.account-card h4 {
  font-size: 15px;
  margin-bottom: 8px;
}

.account-card p {
  color: var(--muted);
  font-size: 12.5px;
}

.mantra {
  margin-top: 28px;
  text-align: center;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 2px;
}

.mantra .g {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 核心能力 ---------- */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.capability-card {
  position: relative;
}

.capability-card .numtag {
  position: absolute;
  top: 20px;
  right: 22px;
  font-size: 13px;
  color: rgba(148, 163, 184, 0.5);
}

/* ---------- 功能场景 ---------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1.18fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 72px;
}

.feature-row.rev {
  grid-template-columns: 1.18fr 1fr;
}

.feature-row.rev .shot {
  grid-column: 1;
  grid-row: 1;
}

.feature-copy .k {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--accent);
}

.feature-copy h3 {
  font-size: 24px;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.feature-copy h3 small {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 1px;
}

.feature-copy > p {
  color: var(--muted);
  font-size: 14.5px;
  margin: 12px 0 16px;
}

.pts {
  list-style: none;
}

.pts li {
  position: relative;
  padding: 10px 0 10px 22px;
  color: var(--muted);
  font-size: 14px;
  border-bottom: 1px dashed var(--line);
}

.pts li:last-child {
  border-bottom: none;
}

.pts li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 18px;
  width: 8px;
  height: 8px;
  background: var(--grad);
  border-radius: 2px;
  transform: rotate(45deg);
}

.pts li b {
  color: var(--text);
  font-weight: 600;
}

.pts li .em {
  color: var(--accent-2);
  font-weight: 600;
}

.pts li .sub {
  display: block;
  margin-top: 2px;
  font-size: 12.5px;
  color: #7c8ba1;
}

.mini-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.mini-stats span {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  border: 1px solid var(--line-strong);
  background: var(--card);
}

.mini-stats b {
  color: var(--accent-2);
  font-weight:700;
}

.monitor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.monitor-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--card-2), var(--card));
}

.monitor-item .shot {
  border-radius: 10px;
  margin-bottom: 14px;
}

.monitor-item h4 {
  font-size: 15.5px;
  margin-bottom: 6px;
}

.monitor-item p {
  color: var(--muted);
  font-size: 13.5px;
}

.monitor-item p b {
  color: var(--text);
}

/* ---------- 核心指标 ---------- */
.metric-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.metric-group {
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--card-2), var(--card));
}

.metric-group h3 {
  font-size: 14px;
  letter-spacing: 4px;
  padding-bottom: 12px;
  margin-bottom: 6px;
  border-bottom: 1px solid var(--line-strong);
}

.metric-group.safe h3 {
  color: #34d399;
  border-bottom-color: rgba(52, 211, 153, 0.35);
}

.metric-group.ops h3 {
  color: #38bdf8;
  border-bottom-color: rgba(56, 189, 248, 0.35);
}

.metric-group.stable h3 {
  color: #fbbf24;
  border-bottom-color: rgba(251, 191, 36, 0.35);
}

.metric-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 4px;
  border-bottom: 1px dashed var(--line);
}

.metric-row:last-of-type {
  border-bottom: none;
}

.metric-row .v {
  flex: 0 0 auto;
  font-size: 26px;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.metric-row .t {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
}

.metric-row .d {
  font-size: 12.5px;
  color: var(--muted);
}

.metric-note {
  margin-top: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(251, 191, 36, 0.35);
  border-radius: 10px;
  background: rgba(251, 191, 36, 0.06);
  font-size: 13px;
  color: var(--muted);
}

.metric-note b {
  color: #fbbf24;
}

/* ---------- 部署方案 ---------- */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 28px;
}

.tier-card {
  position: relative;
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--card-2), var(--card));
  transition: transform 0.3s, border-color 0.3s;
}

.tier-card:hover {
  transform: translateY(-5px);
  border-color: var(--line-strong);
}

.tier-card .tier-tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--accent-2);
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.08);
}

.tier-card h4 {
  font-size: 17px;
  margin-bottom: 10px;
}

.tier-card .big {
  font-size: 24px;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 4px;
}

.tier-card .scale {
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 10px;
}

.tier-card p {
  color: var(--muted);
  font-size: 13px;
}

.tier-card p b {
  color: var(--text);
}

/* ---------- 客户案例 ---------- */
.case-block {
  margin-bottom: 44px;
}

.case-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line-strong);
}

.case-head .title {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}

.case-head h3 {
  font-size: 22px;
  letter-spacing: 1px;
}

.case-head .chip {
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--accent-2);
  border: 1px solid rgba(34, 211, 238, 0.35);
}

.case-head .meta {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 1px;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.case-col {
  padding: 22px 24px;
  border-radius: var(--radius);
}

.case-col.before {
  border-left: 3px solid #f87171;
  background: linear-gradient(90deg, rgba(248, 113, 113, 0.06), transparent 80%);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.case-col.after {
  border-left: 3px solid #34d399;
  background: linear-gradient(90deg, rgba(52, 211, 153, 0.07), transparent 80%);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.case-col .tag {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 10px;
}

.case-col.before .tag {
  color: #f87171;
}

.case-col.after .tag {
  color: #34d399;
}

.case-col .stage {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: -6px;
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.case-rows .rw {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
}

.case-rows .rw:last-child {
  border-bottom: none;
}

.rw .tt {
  flex: 0 0 76px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 1px;
}

.rw .dd {
  font-size: 13.5px;
  color: var(--muted);
}

.rw .dd b {
  color: var(--text);
}

.rw .dd .up {
  color: #34d399;
  font-weight: 700;
}

.rw .dd .down {
  color: #f87171;
  font-weight: 700;
}

.case-quote {
  margin-top: 16px;
}

.case-quote p {
  font-size: 14.5px;
}

.case-quote .who {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: #7c8ba1;
}

/* ---------- 对比表 ---------- */
.duel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.duel-card {
  padding: 24px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--card-2), var(--card));
}

.duel-card.win {
  border-color: rgba(56, 189, 248, 0.5);
  background: linear-gradient(160deg, rgba(56, 189, 248, 0.12), rgba(13, 22, 38, 0.6));
}

.duel-card h4 {
  font-size: 17px;
  margin-bottom: 8px;
}

.duel-card h4 .badge {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 10px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 1px;
  vertical-align: 2px;
  color: #04121f;
  background: var(--grad);
  font-weight: 700;
}

.duel-card p {
  color: var(--muted);
  font-size: 13.5px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  margin-bottom: 24px;
}

.cmp-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
}

.cmp-table th {
  padding: 14px 18px;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--accent);
  text-align: left;
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}

.cmp-table td {
  padding: 13px 18px;
  font-size: 13.5px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.cmp-table tr:last-child td {
  border-bottom: none;
}

.cmp-table td.dim {
  color: #6b7a90;
}

.cmp-table td.bright {
  color: var(--text);
}

.cmp-table td b {
  color: var(--text);
}

.cmp-table td strong.key {
  color: var(--accent-2);
}

/* ---------- 安全与演进 ---------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}

.trust-card {
  padding: 30px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--card-2), var(--card));
}

.trust-card h4 {
  font-size: 18px;
  margin-bottom: 10px;
  letter-spacing: 1px;
}

.trust-card p {
  color: var(--muted);
  font-size: 13.5px;
}

.trust-card .tech {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  color: #7c8ba1;
  letter-spacing: 0.5px;
}

.roadmap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 20px;
  margin-bottom: 24px;
}

.evo-card {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--card-2), var(--card));
}

.evo-card .stg {
  flex: 0 0 64px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
}

.evo-card .ver {
  flex: 0 0 66px;
  font-size: 13px;
  color: var(--accent);
  font-weight: 700;
}

.evo-card .body {
  flex: 1;
}

.evo-card .state {
  display: inline-block;
  margin-bottom: 4px;
  padding: 1px 9px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 1px;
}

.evo-card .state.done {
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.4);
}

.evo-card .state.soon {
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.4);
}

.evo-card .state.plan {
  color: #7c8ba1;
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.evo-card .cap {
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 交付与联系 ---------- */
.delivery-flow {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 6px 18px;
  margin-bottom: 18px;
  font-size: 14px;
  color: var(--text);
}

.delivery-flow .arrow {
  color: var(--accent);
}

.delivery-flow .step {
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
}

.delivery-note {
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 34px;
}

.delivery-note b {
  color: var(--text);
}

.cta-banner {
  position: relative;
  overflow: hidden;
  padding: 48px 32px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  text-align: center;
  background:
    radial-gradient(500px 260px at 50% -20%, rgba(56, 189, 248, 0.16), transparent 70%),
    linear-gradient(160deg, rgba(56, 189, 248, 0.08), rgba(13, 22, 38, 0.7) 60%);
  margin-bottom: 40px;
}

.cta-banner h3 {
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.cta-banner h3 .grad {
  font-weight: 800;
}

.cta-banner p {
  color: var(--muted);
  font-size: 14.5px;
  max-width: 620px;
  margin: 0 auto 26px;
}

.cta-banner .phone {
  display: block;
  margin-bottom: 8px;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 2px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-decoration: none;
}

.cta-banner .company {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 2px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .page-hero {
    padding-top: 120px;
  }

  .page-hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .page-hero .sub {
    max-width: none;
  }

  .why-steps {
    grid-template-columns: 1fr;
  }

  .why-arrow {
    transform: rotate(90deg);
    padding: 2px 0;
  }

  .why-3,
  .metric-groups,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .accounts {
    grid-template-columns: repeat(2, 1fr);
  }

  .capability-grid,
  .tier-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-row,
  .feature-row.rev {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 56px;
  }

  .feature-row.rev .shot {
    grid-column: auto;
    grid-row: auto;
  }

  .monitor-grid {
    grid-template-columns: 1fr;
  }

  .case-grid {
    grid-template-columns: 1fr;
  }

  .duel {
    grid-template-columns: 1fr;
  }

  .roadmap-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .accounts,
  .capability-grid,
  .tier-grid {
    grid-template-columns: 1fr;
  }

  .base-strip {
    padding: 18px 20px;
  }

  .metric-row {
    gap: 12px;
  }

  .metric-row .v {
    font-size: 22px;
  }

  .cta-banner {
    padding: 36px 20px;
  }

  .cta-banner .phone {
    font-size: 26px;
  }
}