/* =============================================
   XAI页面专属样式
   ============================================= */

/* XAI英雄区 */
.xai-hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: 130px 5% 80px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 60% 50%, rgba(255,107,0,0.08) 0%, transparent 60%);
}

.xai-hero-bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,107,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,107,0,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.xai-hero-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  z-index: 2;
  width: 100%;
}

.xai-hero-title {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.xai-hero-desc {
  font-size: 17px;
  color: var(--text-gray);
  line-height: 1.9;
  margin-bottom: 36px;
}

.xai-hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}

.xai-highlights {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,107,0,0.15);
  border-radius: 14px;
  padding: 16px 32px;
}

.xh-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  font-size: 14px;
  color: var(--text-light);
}

.xh-icon { font-size: 18px; }

.xh-divider {
  width: 1px;
  height: 24px;
  background: rgba(255,255,255,0.1);
}

/* 产品理念 */
.philo-card {
  padding: 36px 32px;
  text-align: center;
}

.philo-icon {
  font-size: 40px;
  display: block;
  margin-bottom: 16px;
}

.philo-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.philo-card > p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.7;
  margin-bottom: 20px;
}

.philo-visual {
  background: rgba(255,107,0,0.04);
  border: 1px solid rgba(255,107,0,0.1);
  border-radius: 12px;
  padding: 16px;
}

/* drag demo */
.drag-demo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.dd-node {
  padding: 8px 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  font-size: 13px;
}

.dd-node.highlight {
  background: rgba(255,107,0,0.15);
  border-color: rgba(255,107,0,0.4);
  color: var(--primary);
}

.dd-arrow { color: var(--primary); }

/* infra demo */
.infra-demo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.id-center {
  background: var(--gradient-primary);
  color: #fff;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 700;
}

.id-apps {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.id-apps span {
  padding: 5px 10px;
  background: rgba(255,107,0,0.08);
  border: 1px solid rgba(255,107,0,0.2);
  border-radius: 8px;
  font-size: 12px;
  color: var(--primary);
}

/* value demo */
.value-demo {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.vd-item {
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 13px;
}

.vd-item.bad {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.2);
  color: #f87171;
}

.vd-item.good {
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.2);
  color: #4ade80;
}

/* 业务模式 */
.model-section {
  background: linear-gradient(180deg, transparent, rgba(255,107,0,0.03), transparent);
}

.model-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.model-compare {
  display: flex;
  gap: 16px;
  align-items: stretch;
  margin: 28px 0;
}

.mc-item {
  flex: 1;
  padding: 20px;
  border-radius: 12px;
}

.mc-bad {
  background: rgba(239,68,68,0.05);
  border: 1px solid rgba(239,68,68,0.2);
}

.mc-good {
  background: rgba(255,107,0,0.05);
  border: 1px solid rgba(255,107,0,0.25);
}

.mc-label {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}

.mc-label.bad { color: #f87171; }
.mc-label.good { color: var(--primary); }

.mc-item ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mc-item ul li {
  font-size: 13px;
  color: var(--text-gray);
  line-height: 1.5;
}

.mc-arrow {
  display: flex;
  align-items: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  padding: 0 4px;
}

/* MV card */
.mv-card {
  background: var(--dark-card);
  border: 1px solid rgba(255,107,0,0.3);
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(255,107,0,0.1);
}

.mv-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
}

.mv-flow {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  margin-bottom: 24px;
}

.mvf-box {
  display: flex;
  gap: 12px;
}

.mvf-box.top, .mvf-box.bottom {
  display: flex;
  gap: 12px;
}

.mvf-box > div, .mvf-box > span, .mvf-box {
  padding: 10px 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-light);
  white-space: nowrap;
}

.mvf-center {
  padding: 4px 0;
}

.mvf-xai {
  background: var(--gradient-primary);
  color: #fff;
  padding: 14px 40px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 8px 30px rgba(255,107,0,0.4);
  display: inline-block;
}

.mv-benefits {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.mv-benefits span {
  padding: 6px 14px;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.25);
  border-radius: 20px;
  font-size: 12px;
  color: #4ade80;
}

/* 架构图 */
.arch-diagram {
  background: var(--dark-card);
  border: 1px solid rgba(255,107,0,0.2);
  border-radius: 24px;
  overflow: hidden;
}

.arch-layer {
  padding: 24px 36px;
  border-bottom: 1px solid rgba(255,107,0,0.1);
}

.arch-layer-label {
  font-size: 12px;
  color: var(--text-gray);
  font-weight: 600;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.arch-layer-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ali-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  font-size: 13px;
  color: var(--text-light);
}

.ali-item.more {
  border-color: rgba(255,107,0,0.2);
  color: var(--text-gray);
}

.arch-arrow-row {
  padding: 10px;
  text-align: center;
  background: rgba(255,107,0,0.03);
}

.arch-arrow {
  font-size: 20px;
  color: rgba(255,107,0,0.5);
}

.arch-core {
  padding: 28px 36px;
  border-bottom: 1px solid rgba(255,107,0,0.1);
  background: rgba(255,107,0,0.03);
}

.arch-core-label {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
}

.arch-core-agents {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.aca-item {
  padding: 8px 16px;
  background: rgba(255,107,0,0.08);
  border: 1px solid rgba(255,107,0,0.25);
  border-radius: 10px;
  font-size: 13px;
  color: var(--primary);
}

.aca-item.more {
  opacity: 0.6;
}

.arch-core-modules {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.acm-item {
  padding: 6px 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-gray);
}

.arch-infra {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  padding: 24px 36px;
  align-items: start;
}

.ais-label {
  font-size: 12px;
  color: var(--text-gray);
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.ais-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ais-items span {
  padding: 6px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-gray);
}

.arch-infra-divider {
  width: 1px;
  background: rgba(255,107,0,0.2);
  align-self: stretch;
  margin-top: 20px;
}

/* 功能block */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 80px;
  padding: 0;
}

.feature-block.reverse {
  direction: rtl;
}

.feature-block.reverse > * {
  direction: ltr;
}

.fb-num {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.fb-text h3 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 16px;
}

.fb-text > p {
  font-size: 15px;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 24px;
}

.fb-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.fb-highlight {
  background: rgba(255,107,0,0.06);
  border: 1px solid rgba(255,107,0,0.2);
  border-left: 3px solid var(--primary);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
}

/* fbv-card */
.fbv-card {
  background: var(--dark-card);
  border: 1px solid rgba(255,107,0,0.25);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 15px 50px rgba(0,0,0,0.3);
}

.fbv-title {
  font-size: 13px;
  color: var(--text-gray);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* model-list */
.model-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.ml-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  font-size: 13px;
}

.ml-item.active {
  background: rgba(255,107,0,0.06);
  border-color: rgba(255,107,0,0.2);
}

.ml-status {
  margin-left: auto;
  font-size: 11px;
  color: #4ade80;
  background: rgba(34,197,94,0.1);
  padding: 2px 8px;
  border-radius: 8px;
}

.ml-add {
  margin-left: auto;
  font-size: 11px;
  color: var(--primary);
  cursor: pointer;
}

.fbv-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.fbv-bar-fill {
  flex: 1;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.fbv-bar span {
  font-size: 11px;
  color: var(--text-gray);
  white-space: nowrap;
}

/* wizard steps */
.wizard-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.ws-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.05);
}

.ws-step.done {
  border-color: rgba(34,197,94,0.25);
  background: rgba(34,197,94,0.04);
}

.ws-step.active {
  border-color: rgba(255,107,0,0.3);
  background: rgba(255,107,0,0.06);
}

.ws-num {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
}

.ws-done {
  margin-left: auto;
  color: #4ade80;
  font-size: 12px;
}

.ws-active {
  margin-left: auto;
  color: var(--primary);
  font-size: 11px;
  background: rgba(255,107,0,0.1);
  padding: 2px 8px;
  border-radius: 8px;
}

.skill-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sc-chip {
  padding: 6px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-gray);
}

.sc-chip.selected {
  background: rgba(255,107,0,0.1);
  border-color: rgba(255,107,0,0.3);
  color: var(--primary);
}

/* agent caps */
.agent-caps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

.ac-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
}

.ac-icon {
  font-size: 22px;
}

.ac-item strong {
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
}

.ac-item p {
  font-size: 12px;
  color: var(--text-gray);
}

/* workflow demo */
.wf-canvas {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.wf-node {
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 12px;
  text-align: center;
  min-width: 90px;
}

.wf-node.start { background: rgba(34,197,94,0.15); border: 1px solid rgba(34,197,94,0.3); color: #4ade80; }
.wf-node.process { background: rgba(255,107,0,0.1); border: 1px solid rgba(255,107,0,0.3); color: var(--primary); }
.wf-node.decision { background: rgba(168,85,247,0.1); border: 1px solid rgba(168,85,247,0.3); color: #c084fc; }
.wf-node.ai { background: rgba(255,107,0,0.15); border: 1px solid rgba(255,107,0,0.4); color: var(--primary); }
.wf-node.loop { background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.3); color: #60a5fa; }
.wf-node.end { background: rgba(34,197,94,0.15); border: 1px solid rgba(34,197,94,0.3); color: #4ade80; }

.wf-line {
  width: 2px;
  height: 20px;
  background: rgba(255,107,0,0.3);
}

.wf-line.short { height: 14px; }

.wf-branches {
  display: flex;
  gap: 24px;
}

.wf-branch {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* wf-features */
.wf-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
}

.wff-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.wff-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.wff-item strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
}

.wff-item p {
  font-size: 13px;
  color: var(--text-gray);
  margin: 0;
}

/* rag files */
.rag-files {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.rf-file {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px;
  font-size: 13px;
}

.rf-status {
  margin-left: auto;
  font-size: 11px;
  color: #4ade80;
  background: rgba(34,197,94,0.1);
  padding: 2px 8px;
  border-radius: 8px;
}

.rf-status.uploading {
  color: var(--primary);
  background: rgba(255,107,0,0.1);
  animation: glow-pulse 1.5s ease-in-out infinite;
}

.rag-query input {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,107,0,0.25);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text-light);
  font-size: 13px;
  margin-bottom: 10px;
  outline: none;
}

.rq-result {
  background: rgba(255,107,0,0.06);
  border: 1px solid rgba(255,107,0,0.2);
  border-radius: 8px;
  padding: 12px 14px;
}

.rq-score {
  font-size: 11px;
  color: #4ade80;
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}

.rq-result p {
  font-size: 12px;
  color: var(--text-gray);
  line-height: 1.6;
  margin: 0;
}

/* rf item */
.rag-features, .rf-item {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
}

.rf-item {
  display: flex;
  flex-direction: row;
  gap: 14px;
  align-items: flex-start;
}

.rf-item span:first-child {
  font-size: 22px;
  flex-shrink: 0;
}

.rf-item strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
}

.rf-item p {
  font-size: 13px;
  color: var(--text-gray);
  margin: 0;
}

/* mm grid */
.mm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mm-item {
  display: flex;
  gap: 12px;
  padding: 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
}

.mm-icon { font-size: 22px; }

.mm-info strong {
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
}

.mm-info p {
  font-size: 11px;
  color: var(--text-gray);
  margin-bottom: 8px;
}

.mm-wave {
  display: flex;
  gap: 3px;
  align-items: center;
  height: 16px;
}

.mm-wave span {
  display: block;
  width: 3px;
  background: var(--primary);
  border-radius: 2px;
  animation: wave-bar 1s ease-in-out infinite;
}

.mm-wave span:nth-child(1) { height: 8px; animation-delay: 0s; }
.mm-wave span:nth-child(2) { height: 14px; animation-delay: 0.1s; }
.mm-wave span:nth-child(3) { height: 10px; animation-delay: 0.2s; }
.mm-wave span:nth-child(4) { height: 16px; animation-delay: 0.3s; }
.mm-wave span:nth-child(5) { height: 8px; animation-delay: 0.4s; }

@keyframes wave-bar {
  0%, 100% { transform: scaleY(0.5); }
  50% { transform: scaleY(1); }
}

.mm-progress {
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
  position: relative;
}

.mm-progress.generating {
  animation: shimmer 2s ease-in-out infinite;
  background: linear-gradient(90deg, var(--primary), #FFB347, var(--primary));
  background-size: 200% auto;
}

/* features-mini */
.features-mini {
  margin-top: 20px;
}

.fm-card {
  padding: 32px 28px;
}

.fm-num {
  font-size: 11px;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.fm-icon {
  font-size: 36px;
  display: block;
  margin-bottom: 14px;
}

.fm-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
}

.fm-card p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.7;
  margin-bottom: 16px;
}

.fm-tags { display: flex; gap: 8px; }

.fm-connect {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.fm-connect span {
  padding: 4px 10px;
  background: rgba(255,107,0,0.08);
  border: 1px solid rgba(255,107,0,0.2);
  border-radius: 8px;
  font-size: 12px;
  color: var(--primary);
}

.fm-sec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.fm-sec-grid span {
  padding: 6px 10px;
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: 8px;
  font-size: 12px;
  color: #4ade80;
  text-align: center;
}

/* 多端部署 */
.deploy-card { text-align: center; padding: 36px 28px; }
.dc-icon { font-size: 40px; display: block; margin-bottom: 16px; }
.deploy-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.deploy-card p { font-size: 14px; color: var(--text-gray); line-height: 1.6; }

/* 痛点 */
.pain-card { padding: 28px; }
.pc-problem {
  font-size: 15px;
  font-weight: 600;
  color: #f87171;
  margin-bottom: 14px;
}
.pc-arrow { color: var(--primary); font-size: 20px; margin-bottom: 14px; }
.pc-solution { }
.pc-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(255,107,0,0.1);
  border: 1px solid rgba(255,107,0,0.3);
  border-radius: 8px;
  font-size: 11px;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 10px;
}
.pc-solution p { font-size: 14px; color: var(--text-gray); line-height: 1.7; margin: 0; }
.pc-solution p strong { color: var(--primary); }

/* 定价 */
.pricing-card {
  position: relative;
  padding: 40px 36px;
}

.featured-pricing {
  border-color: rgba(255,107,0,0.5);
  box-shadow: 0 0 40px rgba(255,107,0,0.12);
}

.pricing-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 14px;
  background: var(--gradient-primary);
  border-radius: 20px;
  font-size: 12px;
  color: #fff;
  font-weight: 600;
}

.pricing-icon { font-size: 36px; display: block; margin-bottom: 14px; }
.pricing-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 14px; }
.pricing-desc { font-size: 14px; color: var(--text-gray); line-height: 1.7; margin-bottom: 24px; }

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.pricing-features li {
  font-size: 14px;
  color: var(--text-light);
}

.pricing-note {
  text-align: center;
  margin-top: 32px;
  padding: 16px 24px;
  background: rgba(255,107,0,0.05);
  border: 1px solid rgba(255,107,0,0.15);
  border-radius: 12px;
  font-size: 14px;
  color: var(--text-gray);
}

/* responsive */
@media (max-width: 1024px) {
  .model-inner, .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .feature-block.reverse { direction: ltr; }
  .xai-hero-title { font-size: 36px; }
  .xh-item { font-size: 12px; padding: 0 10px; }
}