/* =========================================================
   rfid-v2.css — RFID 无线射频 产品页
   风格：电波辐射主题 · 居中叙事 · 与首页/零售/收银页明显区分
   ========================================================= */

/* -------- 电波动画 -------- */
@keyframes rf-ripple {
  0%   { transform: translate(-50%, -50%) scale(.18); opacity: .9; }
  100% { transform: translate(-50%, -50%) scale(1);   opacity: 0; }
}
@keyframes rf-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}
@keyframes rf-pulse {
  0%, 100% { opacity: .5; }
  50%      { opacity: 1; }
}

/* -------- Hero：居中 + 电波环 -------- */
.rf-hero {
  position: relative;
  padding: 190px 0 110px;
  background: radial-gradient(1200px 600px at 50% -10%, #123a6b 0%, #0a2248 45%, #050e1f 100%);
  color: #fff;
  text-align: center;
  overflow: hidden;
}
.rf-waves {
  position: absolute;
  left: 50%;
  top: 46%;
  width: 0;
  height: 0;
  pointer-events: none;
}
.rf-waves i {
  position: absolute;
  left: 0;
  top: 0;
  width: 1100px;
  height: 1100px;
  border: 1px solid rgba(34, 211, 238, .35);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(.18);
  opacity: 0;
  animation: rf-ripple 5.2s linear infinite;
}
.rf-waves i:nth-child(2) { animation-delay: 1.3s; }
.rf-waves i:nth-child(3) { animation-delay: 2.6s; }
.rf-waves i:nth-child(4) { animation-delay: 3.9s; }
.rf-core {
  position: absolute;
  left: 0;
  top: 0;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border-radius: 50%;
  background: #22d3ee;
  box-shadow: 0 0 24px 6px rgba(34, 211, 238, .55);
  animation: rf-pulse 2.4s ease-in-out infinite;
}
.rf-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
}
.rf-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
  padding: 7px 18px;
  border: 1px solid rgba(34, 211, 238, .35);
  border-radius: 24px;
  background: rgba(34, 211, 238, .08);
  color: #67e8f9;
  font: 500 11px/1.6 Arial, sans-serif;
  letter-spacing: .3em;
  text-transform: uppercase;
}
.rf-hero .eyebrow:before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22d3ee;
  animation: rf-pulse 2s ease-in-out infinite;
}
.rf-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.16;
  letter-spacing: -.035em;
  font-weight: 800;
}
.rf-hero h1 em {
  display: block;
  margin-top: 6px;
  background: linear-gradient(135deg, #67e8f9, #22d3ee, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: .58em;
  font-style: normal;
  letter-spacing: -.02em;
}
.rf-hero .rf-desc {
  max-width: 560px;
  margin: 0 auto 38px;
  color: rgba(255, 255, 255, .68);
  font-size: 16px;
  line-height: 2;
  font-weight: 300;
}
.rf-hero .hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}
.rf-chips {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 46px;
}
.rf-chips span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 22px;
  background: rgba(255, 255, 255, .05);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: rgba(255, 255, 255, .82);
  font-size: 13px;
  letter-spacing: .04em;
}
.rf-chips span:before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22d3ee;
}

/* -------- 通用区块 -------- */
.rf-section { padding: 110px 0; }
.rf-section.light { background: #f6f8fb; }
.rf-section.dark { background: linear-gradient(180deg, #050e1f 0%, #0a2248 100%); color: #fff; }
.rf-heading {
  max-width: 720px;
  margin: 0 auto 70px;
  text-align: center;
}
.rf-heading .eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  color: var(--blue);
  font: 600 11px/1.4 Arial, sans-serif;
  letter-spacing: .3em;
  text-transform: uppercase;
}
.rf-section.dark .rf-heading .eyebrow { color: #22d3ee; }
.rf-heading h2 {
  margin: 0 0 16px;
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.28;
  letter-spacing: -.028em;
  font-weight: 700;
  color: var(--ink);
}
.rf-section.dark .rf-heading h2 { color: #fff; }
.rf-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  font-weight: 300;
}
.rf-section.dark .rf-heading p { color: rgba(255, 255, 255, .58); }

/* -------- 三大能力：编号横带 -------- */
.rf-value-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #e3eaf3;
}
.rf-value {
  position: relative;
  padding: 46px 34px 10px;
  border-right: 1px solid #e3eaf3;
}
.rf-value:last-child { border-right: 0; }
.rf-value .rf-num {
  display: block;
  margin-bottom: 22px;
  color: #b6c6d9;
  font: 700 40px/1 Arial, sans-serif;
  letter-spacing: -.03em;
}
.rf-value h3 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
}
.rf-value p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
  font-weight: 300;
}
.rf-value:hover .rf-num { color: #22d3ee; transition: color .3s; }

/* -------- 盘点对比：横向条形 -------- */
.rf-compare {
  max-width: 860px;
  margin: 0 auto;
}
.rf-bar-row {
  display: grid;
  grid-template-columns: 130px 1fr 110px;
  align-items: center;
  gap: 20px;
  padding: 22px 0;
}
.rf-bar-row + .rf-bar-row { border-top: 1px solid rgba(255, 255, 255, .08); }
.rf-bar-label {
  color: rgba(255, 255, 255, .78);
  font-size: 15px;
  font-weight: 600;
}
.rf-bar-track {
  height: 14px;
  border-radius: 7px;
  background: rgba(255, 255, 255, .07);
  overflow: hidden;
}
.rf-bar-fill {
  height: 100%;
  border-radius: 7px;
}
.rf-bar-row.manual .rf-bar-fill {
  width: 100%;
  background: linear-gradient(90deg, #47597a, #64748b);
}
.rf-bar-row.rfid .rf-bar-fill {
  width: 6%;
  min-width: 26px;
  background: linear-gradient(90deg, #22d3ee, #67e8f9);
  box-shadow: 0 0 18px rgba(34, 211, 238, .6);
}
.rf-bar-time {
  text-align: right;
  font: 700 20px/1 Arial, sans-serif;
  color: rgba(255, 255, 255, .55);
}
.rf-bar-row.rfid .rf-bar-time { color: #67e8f9; }
.rf-compare-note {
  margin: 34px 0 0;
  text-align: center;
  color: rgba(255, 255, 255, .5);
  font-size: 13px;
  letter-spacing: .06em;
}

/* -------- 长图总览 -------- */
.rf-doc-panel {
  max-width: 820px;
  margin: 0 auto;
  padding: 26px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(10, 40, 80, .10), 0 0 0 1px rgba(10, 40, 80, .05);
}
.rf-doc-panel img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}
.rf-doc-tip {
  margin: 22px 0 0;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

/* -------- CTA -------- */
.rf-cta {
  position: relative;
  padding: 110px 0;
  background: radial-gradient(900px 460px at 50% 120%, #123a6b 0%, #0a2248 55%, #050e1f 100%);
  color: #fff;
  text-align: center;
  overflow: hidden;
}
.rf-cta-inner {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
}
.rf-cta h2 {
  margin: 0 0 18px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.3;
  letter-spacing: -.025em;
  font-weight: 700;
}
.rf-cta p {
  margin: 0 0 38px;
  color: rgba(255, 255, 255, .58);
  font-size: 15px;
  line-height: 1.9;
  font-weight: 300;
}
.rf-cta .hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

/* -------- 响应式 -------- */
@media (max-width: 1024px) {
  .rf-hero { padding: 160px 0 90px; }
  .rf-value-band { grid-template-columns: 1fr; }
  .rf-value { padding: 34px 26px 8px; border-right: 0; border-bottom: 1px solid #e3eaf3; }
  .rf-value:last-child { border-bottom: 0; }
  .rf-section { padding: 84px 0; }
}
@media (max-width: 600px) {
  .rf-hero { padding: 120px 0 64px; }
  .rf-hero h1 { font-size: 34px; }
  .rf-hero .rf-desc { font-size: 14px; line-height: 1.9; }
  .rf-chips { gap: 8px; margin-top: 32px; }
  .rf-chips span { padding: 7px 14px; font-size: 12px; }
  .rf-waves i { width: 640px; height: 640px; }
  .rf-section { padding: 64px 0; }
  .rf-heading { margin-bottom: 44px; }
  .rf-heading h2 { font-size: 25px; }
  .rf-heading p { font-size: 13.5px; }
  .rf-value .rf-num { font-size: 32px; margin-bottom: 14px; }
  .rf-value h3 { font-size: 17px; }
  .rf-value p { font-size: 13px; }
  .rf-bar-row { grid-template-columns: 88px 1fr 74px; gap: 12px; padding: 16px 0; }
  .rf-bar-label { font-size: 13px; }
  .rf-bar-time { font-size: 16px; }
  .rf-doc-panel { padding: 12px; border-radius: 12px; }
  .rf-cta { padding: 76px 0; }
  .rf-cta h2 { font-size: 23px; }
  .rf-cta p { font-size: 13.5px; }
}

/* -------- 核心功能胶囊 -------- */
.rf-pills { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: -26px 0 84px; }
.rf-pills span { padding: 10px 22px; border-radius: 24px; background: #fff; border: 1px solid #e3eaf3; box-shadow: 0 4px 16px rgba(10,40,80,.05); color: var(--ink); font-size: 14px; font-weight: 600; }
.rf-pills span i { font-style: normal; color: #22d3ee; margin-right: 8px; font: 700 12px Arial; letter-spacing: .08em; }

/* -------- 功能块：文案 + CSS 重绘界面 -------- */
.rf-feat { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.rf-feat + .rf-feat { margin-top: 100px; }
.rf-feat.reverse .rf-feat-copy { order: 2; }
.rf-feat.reverse .rf-screen { order: 1; }
.rf-feat-copy .idx { display: block; margin-bottom: 16px; color: #c3d2e2; font: 700 44px/1 Arial, sans-serif; letter-spacing: -.03em; }
.rf-feat-copy h3 { margin: 0 0 14px; font-size: 26px; font-weight: 700; color: var(--ink); letter-spacing: -.02em; }
.rf-feat-copy p { margin: 0 0 24px; color: var(--muted); font-size: 15px; line-height: 1.95; font-weight: 300; }
.rf-stat-row { display: flex; flex-wrap: wrap; gap: 10px; }
.rf-stat-row span { padding: 8px 14px; border-radius: 8px; background: #eef6ff; color: #1267c8; font-size: 13px; font-weight: 600; }
.rf-stat-row span b { margin-left: 6px; color: #0a2248; font: 700 15px Arial, sans-serif; }

/* -------- 界面模拟面板 -------- */
.rf-screen { border-radius: 14px; background: #fff; box-shadow: 0 24px 70px rgba(10,40,80,.10), 0 0 0 1px rgba(10,40,80,.05); overflow: hidden; }
.scr-head { display: flex; align-items: center; gap: 8px; padding: 14px 18px; border-bottom: 1px solid #eef2f7; color: #142641; font-size: 14px; font-weight: 600; }
.scr-head:before { content: "‹"; color: #8aa0b8; font-size: 18px; line-height: 1; }
.scr-grid4 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; padding: 14px 18px; border-bottom: 1px solid #f1f5f9; }
.scr-grid4 div { display: flex; justify-content: space-between; font-size: 13px; color: #758397; }
.scr-grid4 b { color: #e5484d; font: 700 15px Arial, sans-serif; }
.scr-row { display: grid; grid-template-columns: 24px 1fr 52px 44px 40px; gap: 8px; align-items: center; padding: 11px 18px; border-bottom: 1px solid #f5f8fb; font-size: 12.5px; color: #465872; }
.scr-row .no { color: #b6c6d9; }
.scr-row .name b { display: block; color: #142641; font-size: 13px; font-weight: 600; }
.scr-row .qty { text-align: right; color: #142641; font-weight: 600; }
.scr-actions { display: flex; gap: 12px; padding: 16px 18px; }
.scr-actions .btn-light, .scr-actions .btn-blue { flex: 1; padding: 10px 0; border-radius: 20px; text-align: center; font-size: 13px; font-weight: 600; }
.scr-actions .btn-light { background: #eef2f7; color: #1267c8; }
.scr-actions .btn-blue { background: #2f6bea; color: #fff; }
.scr-radio { display: flex; align-items: center; gap: 14px; padding: 12px 18px; border-bottom: 1px solid #f5f8fb; font-size: 13px; color: #465872; }
.scr-radio .lab { width: 64px; color: #93a9c0; }
.scr-radio .opt { display: inline-flex; align-items: center; gap: 6px; }
.scr-radio .opt:before { content: ""; width: 14px; height: 14px; border-radius: 50%; border: 1px solid #c3d2e2; }
.scr-radio .opt.on:before { border: 4px solid #2f6bea; }
.scr-nums { padding: 14px 18px; }
.scr-nums div { display: flex; justify-content: center; gap: 10px; padding: 9px 0; font-size: 15px; color: #142641; font-weight: 600; }
.scr-nums b { color: #2f6bea; font: 700 17px Arial, sans-serif; }
.scr-nums b.warn { color: #e5484d; text-decoration: underline; }
.scr-found { padding: 2px 0 14px; text-align: center; color: #e5484d; font: 700 26px/1 Arial, sans-serif; letter-spacing: .35em; text-indent: .35em; }
.scr-kv { display: flex; justify-content: space-between; padding: 12px 18px; border-bottom: 1px solid #f5f8fb; font-size: 13px; color: #93a9c0; }
.scr-kv b { color: #142641; font-weight: 600; }
.scr-input { margin: 14px 18px; padding: 11px 14px; border: 1px solid #e3eaf3; border-radius: 8px; color: #b6c6d9; font-size: 13px; }

@media (max-width: 1024px) {
  .rf-feat, .rf-feat.reverse { grid-template-columns: 1fr; gap: 34px; }
  .rf-feat.reverse .rf-feat-copy { order: 1; }
  .rf-feat.reverse .rf-screen { order: 2; }
  .rf-feat + .rf-feat { margin-top: 70px; }
  .rf-pills { margin-bottom: 56px; }
}
@media (max-width: 600px) {
  .rf-feat-copy .idx { font-size: 34px; }
  .rf-feat-copy h3 { font-size: 21px; }
  .rf-feat-copy p { font-size: 13.5px; }
  .rf-feat + .rf-feat { margin-top: 54px; }
  .rf-pills span { padding: 8px 16px; font-size: 13px; }
  .scr-row { grid-template-columns: 20px 1fr 44px 38px 34px; font-size: 11.5px; }
}