/* =========================================================================
 * WZY 微智优 — 无线充电 PCBA 模块官网设计系统（v2 · 科技感视觉升级）
 * -------------------------------------------------------------------------
 * 设计语言参考 Apple / Stripe / Vercel：
 *   - 清晰的网格系统与大面积留白（区块间距 64–104px）
 *   - 明 / 暗区块交替（深色渐变背景穿插，强对比层次）
 *   - 放大字号层级（Hero 64px / 副标 24–32px / 正文 17–18px，行高 1.75）
 *   - 深色表面下的卡片微阴影 + 16px 圆角 + 平滑悬停过渡
 *   - 毛玻璃导航、渐变光晕、细网格线等克制装饰
 *
 * 关键机制：深色区块（.section--dark / .section.soft）通过重写语义变量
 *           （--ink / --muted / --bg-card / --line / --navy …）让内部所有
 *            组件自动适配暗色，无需逐个改写。
 * ========================================================================= */

:root {
  --navy: #0A1B33;
  --navy-2: #0E2747;
  --blue: #1456C9;
  --blue-bright: #2E7BF0;
  --blue-2: #4F8CFF;
  --accent: #00C2D1;
  --accent-2: #22D3EE;
  --accent-soft: #E2F7FA;
  --ink: #0B1220;
  --muted: #5B6B82;
  --bg: #FFFFFF;
  --bg-soft: #F5F8FC;
  --bg-card: #FFFFFF;
  --line: #E3E9F2;
  --line-strong: #CBD6E6;
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 12px 40px rgba(8, 15, 30, .10);
  --shadow-lg: 0 28px 70px rgba(8, 15, 30, .16);
  --container: 1200px;
  --nav-h: 76px;
  --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --grad-accent: linear-gradient(135deg, #4F8CFF 0%, #00C2D1 100%);
  --grad-cta: linear-gradient(135deg, #1456C9 0%, #0A1B33 100%);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: #EEF2F7;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.15; color: var(--navy); font-weight: 700; letter-spacing: -.01em; }
h1 { font-weight: 800; letter-spacing: -.02em; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* 内容卡片化：每段内容居中成卡片，两侧露出浅灰底（body），减轻视觉疲劳 */
.section > .container {
  background: #fff;
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: clamp(31px, 4vw, 63px) clamp(22px, 3vw, 49px);
}

/* ---------- 占位符（照片 / 产品图） ---------- */
.ph {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background:
    repeating-linear-gradient(45deg, #eef2f8 0 12px, #e6ecf5 12px 24px);
  border: 2px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--muted);
  min-height: 180px;
  padding: 18px;
  overflow: hidden;
}
.ph:not(:has(img))::before {
  content: "📷";
  position: absolute;
  top: 10px; left: 12px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .5px;
  color: var(--blue);
  background: #fff;
  border: 1px solid var(--line-strong);
  padding: 2px 8px;
  border-radius: 999px;
}
.ph .ph-label { max-width: 90%; font-size: 16px; }
.ph .ph-label b { color: var(--ink); }
.ph-sm { min-height: 120px; }
.ph-lg { min-height: 320px; }

/* 懒加载图片：初始透明，进入视口加载完成后淡入（占位框背景先显示，避免白屏/闪烁） */
.lazy-img { opacity: 0; transition: opacity .35s ease; }
.lazy-img.is-loaded { opacity: 1; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 17px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .25s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn-primary { background: var(--grad-accent); color: #fff; box-shadow: 0 10px 26px rgba(20, 86, 201, .32); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 42px rgba(0, 194, 209, .42); }
.btn-ghost { background: transparent; color: var(--navy); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
/* 深色区块内 .btn-light 文字必须用深色，否则 --navy 变白导致白字+白背景不可见 */
.section--dark .btn-light,
.section.soft .btn-light { color: #0B1220; }
.btn-danger { background: #fee2e2; color: #b91c1c; border-color: #fecaca; }
.btn-danger:hover { background: #fecaca; transform: translateY(-2px); }
.btn-text { background: transparent; color: var(--blue); padding: 6px 10px; font-size: 16px; }
.btn-text:hover { background: var(--accent-soft); }
.btn-sm { padding: 8px 14px; font-size: 15px; }

/* ---------- 顶部导航（毛玻璃） ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(255, 255, 255, .80);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(227, 233, 242, .85);
  transition: box-shadow .25s ease, background .25s ease, border-color .25s ease;
}
.site-header.scrolled { background: rgba(255, 255, 255, .94); box-shadow: 0 8px 30px rgba(8, 15, 30, .08); border-bottom-color: transparent; }
.nav { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }
.brand { display: flex; align-items: center; gap: 14px; font-size: 21px; font-weight: 800; color: var(--navy); }
.brand .logo {
  width: 54px; height: 54px; border-radius: 15px;
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  color: var(--blue); font-size: 24px; font-weight: 800; letter-spacing: .5px;
  box-shadow: 0 6px 18px rgba(10, 27, 51, .14);
  border: 1px solid rgba(10, 27, 51, .08);
  flex: 0 0 auto;
}
.brand .brand-text { line-height: 1.1; }
.brand .brand-text small { display: block; font-size: 14px; color: var(--muted); font-weight: 600; letter-spacing: 1.5px; margin-top: 2px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 10px 16px; border-radius: 10px; font-size: 19px; color: var(--ink); font-weight: 700;
  letter-spacing: .02em;
  transition: color .15s ease, background .15s ease, transform .15s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--blue); background: var(--bg-soft); transform: translateY(-1px); }
.nav-links a:hover, .nav-links a.active { color: var(--blue); background: var(--bg-soft); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--navy); margin: 5px 0; transition: .2s; }

/* 语言切换（中 / EN） */
.lang-switch {
  display: inline-flex; align-items: center; gap: 2px;
  border: 1px solid var(--line-strong, #d7dee9); border-radius: 999px;
  padding: 3px; background: var(--bg-soft, #f1f5fb); flex: 0 0 auto;
}
.lang-switch button {
  border: 0; background: transparent; cursor: pointer; font: inherit; font-size: 15px;
  font-weight: 700; line-height: 1; padding: 6px 10px; border-radius: 999px;
  color: var(--muted, #5b6b82); transition: background .15s ease, color .15s ease;
}
.lang-switch button:hover { color: var(--blue, #2f6bff); }
.lang-switch button.active { background: var(--blue, #2f6bff); color: #fff; }
.lang-switch button:focus-visible { outline: 2px solid var(--blue, #2f6bff); outline-offset: 2px; }
/* 英文模式下隐藏品牌中文名（仅保留 WZY 标识，避免 WZY WZY 重复） */
html[lang="en"] .brand-text { display: none; }

/* 移动抽屉 */
.mobile-drawer {
  position: fixed; inset: 0 0 0 auto; width: 80%; max-width: 320px;
  background: #fff; z-index: 200; transform: translateX(100%);
  transition: transform .25s ease; box-shadow: var(--shadow-lg);
  padding: 24px; overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer a { display: block; padding: 14px 8px; border-bottom: 1px solid var(--line); font-size: 18px; }
.mobile-drawer .lang-switch { display: flex; width: 100%; margin: 8px 0 18px; padding: 4px; }
.mobile-drawer .lang-switch button { flex: 1; font-size: 17px; padding: 9px 10px; }
.drawer-close { position: absolute; top: 16px; right: 18px; font-size: 29px; border: 0; background: none; cursor: pointer; color: var(--muted); }
.overlay { position: fixed; inset: 0; background: rgba(10, 27, 51, .4); z-index: 150; opacity: 0; pointer-events: none; transition: opacity .25s; }
.overlay.show { opacity: 1; pointer-events: auto; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 520px at 82% -12%, rgba(0, 194, 209, .22), transparent 60%),
    radial-gradient(900px 480px at 8% 8%, rgba(79, 140, 255, .18), transparent 55%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 55%, #0c2342 100%);
  color: #fff;
  padding: clamp(80px, 10vw, 130px) 0 clamp(70px, 8vw, 110px);
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 72% 28%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 72% 28%, #000 0%, transparent 72%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero h1 { color: #fff; font-size: clamp(32px, 5vw, 58px); line-height: 1.18; margin-bottom: .28em; letter-spacing: -.01em; }
.hero .lead { color: #c9d6ea; font-size: clamp(17px, 2vw, 22px); max-width: 700px; line-height: 1.75; margin-bottom: 16px; }
.hero-features {
  display: flex; flex-wrap: wrap; gap: 10px 28px;
  list-style: none; padding: 0; margin: 0 0 24px 0;
  color: #a8c3e8; font-size: clamp(14px, 1.7vw, 17px); line-height: 1.5;
}
.hero-features li { display: flex; align-items: center; gap: 6px; }
.hero-features li b { color: #5eead4; font-weight: 600; white-space: nowrap; }
.hero .hero-actions { margin-top: 20px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero .badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, .10); border: 1px solid rgba(255, 255, 255, .22);
  color: #eaf2ff; padding: 7px 16px; border-radius: 999px; font-size: 14px; margin-bottom: 18px;
  backdrop-filter: blur(6px);
}
.hero-stats { display: flex; gap: 40px; margin-top: 40px; flex-wrap: wrap; padding-top: 32px; border-top: 1px solid rgba(255,255,255,.08); }
.hero-stats .stat b { display: block; font-size: clamp(26px, 3vw, 38px); color: #fff; line-height: 1.15; letter-spacing: -.01em; }
.hero-stats .stat span { color: #9fb2cf; font-size: 14px; }

/* ---------- 通用 section ---------- */
.section { position: relative; padding: clamp(18px, 2.2vw, 34px) clamp(16px, 2vw, 27px); scroll-margin-top: var(--nav-h); }
.section-head { max-width: 740px; margin: 0 auto clamp(45px, 5vw, 63px); text-align: center; }
.section-head .eyebrow {
  display: inline-block; color: var(--blue); font-weight: 700; letter-spacing: 2.5px;
  font-size: 15px; text-transform: uppercase; margin-bottom: 14px; position: relative; padding-bottom: 12px;
}
.section-head .eyebrow::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 40px; height: 3px; border-radius: 999px; background: var(--grad-accent);
}
.section-head h2 { font-size: clamp(31px, 4vw, 49px); margin: 0 0 14px; letter-spacing: -.02em; }
.section-head p { color: var(--muted); font-size: 19px; line-height: 1.7; }

/* ---------- 深色区块（明 / 暗交替核心） ----------
   重写语义变量，内部组件自动适配暗色；并叠加双径向光晕 + 细网格线。 */
.section--dark,
.section.soft {
  --ink: #EAF1FB;
  --muted: #9DB0CC;
  --bg-card: rgba(255, 255, 255, .045);
  --bg-soft: rgba(255, 255, 255, .03);
  --line: rgba(255, 255, 255, .10);
  --line-strong: rgba(255, 255, 255, .18);
  --navy: #FFFFFF;
  --accent-soft: rgba(79, 140, 255, .16);
  --shadow: 0 24px 60px rgba(0, 0, 0, .45);
  color: var(--ink);
}
.section--dark > .container,
.section.soft > .container {
  position: relative; z-index: 1;
  background:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px) 0 0 / 48px 48px,
    radial-gradient(1100px 520px at 88% -10%, rgba(0, 194, 209, .16), transparent 60%),
    radial-gradient(900px 520px at -5% 112%, rgba(79, 140, 255, .14), transparent 55%),
    linear-gradient(165deg, #070B16 0%, #0B1224 55%, #0A1B33 100%);
}

/* ---------- 浅色柔和区块（低视觉疲劳：浅灰 / 米白渐变） ----------
   重写语义变量，复用基础浅色组件样式；不加光晕 / 网格装饰，保持安静易读。 */
.section--light {
  --ink: #1A2436;
  --muted: #5A6B82;
  --bg-card: #FFFFFF;
  --bg-soft: #EEF2F7;
  --line: #E4EAF1;
  --line-strong: #D3DCE7;
  --navy: #0B1220;
  --accent-soft: rgba(79, 140, 255, .10);
  --shadow: 0 18px 44px rgba(20, 40, 80, .07);
  color: var(--ink);
}
.section--light > .container {
  background: linear-gradient(180deg, #F8FAFD 0%, #F1F4F9 100%);
}

/* 深色区块内硬编码对比度的组件修正 */
.section--dark .feature .num,
.section.soft .feature .num { background: var(--grad-accent); color: #fff; }

.section--dark .cert-strip .cert,
.section.soft .cert-strip .cert { background: rgba(255, 255, 255, .05); border-color: rgba(255, 255, 255, .16); color: #EAF1FB; box-shadow: 0 10px 30px rgba(0, 0, 0, .3); }

.section--dark .tags .tag-pill,
.section.soft .tags .tag-pill { background: rgba(255, 255, 255, .05); border-color: rgba(255, 255, 255, .16); color: #EAF1FB; }

.section--dark .filter-bar button,
.section.soft .filter-bar button { background: rgba(255, 255, 255, .05); border-color: rgba(255, 255, 255, .18); color: #EAF1FB; }
.section--dark .filter-bar button:hover,
.section.soft .filter-bar button:hover { border-color: var(--blue-2); color: #fff; }
.section--dark .filter-bar button.active,
.section.soft .filter-bar button.active { background: var(--grad-accent); color: #fff; border-color: transparent; }

.section--dark .product-card .tag,
.section.soft .product-card .tag { background: rgba(79, 140, 255, .16); color: #9FC2FF; }

/* 产品卡徽标在深色区块内改为玻璃质感，保证可读 */
.section--dark .badge-power,
.section.soft .badge-power { background: rgba(79, 140, 255, .18); color: #9FC2FF; }
.section--dark .badge-type,
.section.soft .badge-type { background: rgba(16, 185, 129, .18); color: #6EE7B7; }
.section--dark .badge-iface,
.section.soft .badge-iface { background: rgba(34, 211, 238, .16); color: #7DEBEE; }

.section--dark .mp-pill,
.section.soft .mp-pill { background: rgba(79, 140, 255, .16); border-color: rgba(79, 140, 255, .30); color: #9FC2FF; }
.section--dark .mp-pill:hover,
.section.soft .mp-pill:hover { background: var(--grad-accent); color: #fff; }
.section--dark .mp-pill span,
.section.soft .mp-pill span { color: rgba(255, 255, 255, .72); }

.section--dark .matrix-card,
.section.soft .matrix-card { background: rgba(255, 255, 255, .045); border-color: rgba(255, 255, 255, .10); }

.section--dark .card .ico,
.section.soft .card .ico { background: rgba(79, 140, 255, .16); color: #9FC2FF; }

.section--dark .news-item,
.section.soft .news-item { border-color: rgba(255, 255, 255, .10); }
.section--dark .news-item .date,
.section.soft .news-item .date { color: #9DB0CC; }

.section--dark .ph,
.section.soft .ph { background: repeating-linear-gradient(45deg, rgba(255, 255, 255, .04) 0 12px, rgba(255, 255, 255, .07) 12px 24px); border-color: rgba(255, 255, 255, .18); color: #9DB0CC; }
.section--dark .ph:not(:has(img))::before,
.section.soft .ph:not(:has(img))::before { background: rgba(10, 15, 30, .6); border-color: rgba(255, 255, 255, .2); color: #9FC2FF; }

/* 数据表在深色区块内保持浅色表面，确保可读 */
.section--dark .spec-table,
.section.soft .spec-table { background: #fff; border-color: #E3E9F2; }
.section--dark .spec-table caption,
.section.soft .spec-table caption { background: #F5F8FC; color: #0B1220; }
.section--dark .spec-table th,
.section.soft .spec-table th { color: #5B6B82; background: #fff; }
.section--dark .spec-table td,
.section.soft .spec-table td { color: #0B1220; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(79, 140, 255, .40); }
.card .ico {
  width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: var(--accent-soft); color: var(--blue); font-size: 27px; margin-bottom: 18px;
}
.card h3 { font-size: 22px; }
.card p { color: var(--muted); font-size: 17px; margin: 0; line-height: 1.7; }

/* 能力 / 优势项 */
.feature { display: flex; gap: 16px; align-items: flex-start; }
.feature .num {
  flex: 0 0 44px; height: 44px; border-radius: 12px; background: var(--navy); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 800;
}

/* ---------- 产品矩阵 / 筛选 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 36px; }
.filter-bar button {
  border: 1px solid var(--line-strong); background: #fff; color: var(--ink);
  padding: 9px 18px; border-radius: 999px; cursor: pointer; font-size: 16px; font-weight: 600;
  transition: .15s;
}
.filter-bar button:hover { border-color: var(--blue); color: var(--blue); }
.filter-bar button.active { background: var(--blue); color: #fff; border-color: var(--blue); }
/* 无线充电宝并入产品中心：状态徽章 + 详情弹窗（复用产品详情视觉） */
.badge-status { padding: 3px 10px; border-radius: 999px; font-size: 14px; font-weight: 700; }
.badge-status.ok { background: #EAF7EF; color: #0a8f4d; }
.badge-status.disc { background: #FDECEC; color: #c0392b; }
.badge-status.other { background: #EEF2F7; color: #5B6B82; }

.pb-modal-backdrop { position: fixed; inset: 0; background: rgba(8, 15, 30, .92); display: none; align-items: flex-start; justify-content: center; z-index: 1100; padding: 48px 20px; overflow-y: auto; }
.pb-modal-backdrop.open { display: flex; }
.pb-modal-card { background: #fff; border-radius: 18px; max-width: 920px; width: 100%; padding: 32px; box-shadow: 0 30px 80px rgba(0, 0, 0, .5); position: relative; }
.pb-modal-close { position: absolute; top: 14px; right: 16px; width: 40px; height: 40px; border-radius: 50%; border: none; background: #eef2f7; color: #334; font-size: 27px; line-height: 1; cursor: pointer; }
.pb-modal-close:hover { background: #e2e8f2; }
.pb-modal-body .split { margin-bottom: 8px; }
@media (max-width: 820px) { .pb-modal-card { padding: 22px; } }

.product-card { display: flex; flex-direction: column; }
.product-card .ph { margin-bottom: 16px; }
.product-card .tag { display: inline-block; font-size: 14px; color: var(--blue); background: var(--accent-soft); padding: 3px 10px; border-radius: 999px; margin-bottom: 10px; font-weight: 700; }
.product-card h3 { font-size: 19px; margin: 0 0 6px; }
.product-card .model { font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; color: var(--muted); font-size: 15px; }
.product-card p { font-size: 16px; color: var(--muted); margin: 10px 0 14px; }
.product-card .more { margin-top: auto; color: var(--blue); font-weight: 600; font-size: 16px; }

/* ---------- 图文交替 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split.rev .split-media { order: 2; }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; gap: 30px; } .split.rev .split-media { order: 0; } }
.split-media .ph { min-height: 320px; border-radius: var(--radius); }
.split-text h2 { font-size: clamp(29px, 3.4vw, 40px); letter-spacing: -.02em; }
.split-text p { font-size: 19px; line-height: 1.75; }
.split-text .kpi { display: flex; gap: 32px; margin-top: 24px; flex-wrap: wrap; }
.split-text .kpi b { display: block; font-size: 34px; color: var(--blue); letter-spacing: -.02em; }
.split-text .kpi span { font-size: 15px; color: var(--muted); }

/* ---------- 图片轮播（汽车电子等板块） ---------- */
.wzy-carousel { position: relative; border-radius: 12px; overflow: visible; }
.carousel-viewport { position: relative; overflow: hidden; border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,.08); background: #0a0f1e; min-height: 240px; /* 兜底：不支持 aspect-ratio 的浏览器在图未就绪时也不塌成 0 高度 */ }
.section--dark .carousel-viewport,
.section.soft .carousel-viewport { box-shadow: 0 8px 30px rgba(0,0,0,.25); }
.carousel-track { display: flex; transition: transform .5s cubic-bezier(.25,.46,.45,.94); will-change: transform; }
.carousel-slide { flex: 0 0 100%; min-width: 0; position: relative; }
.carousel-slide .carousel-main-img { display: block; width: 100%; height: auto; object-fit: cover; aspect-ratio: 3 / 2; }

/* 充电宝轮播第1张为竖版(4:5)，居中卡片式展示 */
#powerbank-carousel .carousel-slide[data-index="0"] .carousel-main-img {
  object-fit: contain;
  aspect-ratio: auto;
  max-height: 540px;
  width: auto;
  margin: 0 auto;
  background: #141c30;
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 10px 30px rgba(0,0,0,.18);
}

/* 充电宝轮播：其余横版slide在较高viewport内垂直居中 */
#powerbank-carousel .carousel-slide {
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 640px) {
  #powerbank-carousel .carousel-slide[data-index="0"] .carousel-main-img {
    max-height: 380px;
  }
}

/* 骨架屏加载占位 */
.slide-skeleton { position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(110deg, #1a1f35 25%, #242b45 37%, #1a1f35 63%);
  background-size: 200% 100%;
  animation: sk-shimmer 1.5s ease-in-out infinite;
  pointer-events: none; opacity: 1; transition: opacity .4s ease;
}
.carousel-main-img.is-loaded + .slide-skeleton,
.carousel-main-img.is-loaded ~ .slide-skeleton { opacity: 0; }
@keyframes sk-shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* 左右箭头 */
.carousel-arrow { position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 5; width: 36px; height: 36px; border-radius: 50%;
  border: none; background: rgba(15,23,42,.55); backdrop-filter: blur(8px);
  color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .25s ease, background .2s ease, transform .2s ease;
}
.wzy-carousel:hover .carousel-arrow { opacity: 1; }
.carousel-arrow:hover { background: rgba(30,58,138,.75); transform: translateY(-50%) scale(1.08); }
.carousel-arrow:active { transform: translateY(-50%) scale(.95); }
.carousel-prev { left: 10px; }
.carousel-next { right: 10px; }
@media (max-width: 640px) {
  .carousel-arrow { width: 32px; height: 32px; opacity: 1; }
  .carousel-arrow svg { width: 16px; height: 16px; }
}

/* 缩略图导航栏 */
.carousel-thumbs { display: flex; gap: 8px; margin-top: 10px; justify-content: center; padding: 4px 0; }
.carousel-thumb { width: 56px; height: 56px; border-radius: 8px; overflow: hidden; border: 2px solid transparent;
  padding: 0; background: none; cursor: pointer; transition: border-color .25s ease, transform .2s ease, box-shadow .2s ease;
}
.carousel-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.carousel-thumb.active { border-color: var(--blue, #1e3a8a); transform: scale(1.06); box-shadow: 0 2px 10px rgba(30,58,138,.3); }
.carousel-thumb:hover:not(.active) { border-color: rgba(148,163,184,.5); transform: scale(1.03); }
@media (max-width: 480px) {
  .carousel-thumb { width: 44px; height: 44px; border-radius: 6px; }
  .carousel-thumbs { gap: 6px; margin-top: 8px; }
}

/* 播放控制 + 计数器 */
.carousel-controls { display: flex; align-items: center; justify-content: flex-end; gap: 10px; margin-top: 8px; padding: 0 4px; }
.carousel-playpause { width: 28px; height: 28px; border-radius: 50%; border: 1px solid rgba(148,163,184,.3);
  background: transparent; color: var(--muted, #94a3b8); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .2s ease; padding: 0;
}
.carousel-playpause:hover { background: rgba(30,58,138,.1); color: var(--blue, #1e3a8a); border-color: var(--blue, #1e3a8a); }
.carousel-counter { font-size: 15px; font-family: ui-monospace, Menlo, monospace; color: var(--muted, #94a3b8); letter-spacing: .02em; }
.carousel-curr { font-weight: 700; color: var(--ink, #0f172a); }
.section--dark .carousel-curr { color: #e2e8f0; }
.section--dark .carousel-counter { color: #94a3b8; }
.section--dark .carousel-playpause { color: #94a3b8; border-color: rgba(255,255,255,.18); }
.section--dark .carousel-playpause:hover { background: rgba(59,130,246,.15); color: #60a5fa; border-color: rgba(59,130,246,.5); }
.section--dark .carousel-thumb.active { border-color: #3b82f6; box-shadow: 0 2px 10px rgba(59,130,246,.35); }

/* 触摸滑动提示（移动端首次可见时短暂显示） */
.carousel-swipe-hint { position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%);
  z-index: 4; background: rgba(15,23,42,.6); backdrop-filter: blur(6px);
  color: #fff; font-size: 13px; padding: 4px 12px; border-radius: 999px;
  pointer-events: none; opacity: 0; transition: opacity .5s ease;
  animation: swipe-hint-fade 4s ease forwards;
}
@keyframes swipe-hint-fade { 0%,70%{opacity:.8} 100%{opacity:0} }
@media (min-width: 641px) { .carousel-swipe-hint { display: none; } }

/* ---------- 时间轴 ---------- */
.timeline { position: relative; max-width: 820px; margin: 0 auto; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: var(--line-strong); }
.tl-item { position: relative; padding: 0 0 34px 26px; }
.tl-item::before { content: ""; position: absolute; left: -28px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--blue); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--blue); }
.tl-item .year { font-weight: 800; color: var(--blue); }
.tl-item h4 { margin: 4px 0 6px; }
.tl-item p { color: var(--muted); margin: 0; }

/* ---------- 资质 / 标签云 ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.tags .tag-pill { border: 1px solid var(--line-strong); border-radius: 999px; padding: 10px 18px; background: #fff; font-weight: 600; color: var(--ink); }

/* ---------- 新闻列表 ---------- */
.news-item { display: grid; grid-template-columns: 220px 1fr; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.news-item .ph { min-height: 130px; border-radius: var(--radius-sm); overflow: hidden; }
.news-item .ph img.news-cover { width: 100%; height: 100%; min-height: 130px; object-fit: cover; display: block; }
.news-item h3 { font-size: 20px; margin: 0 0 6px; }
.news-item .date { color: var(--muted); font-size: 15px; }
.news-item p { color: var(--muted); font-size: 16px; margin: 8px 0 0; line-height: 1.7; }
@media (max-width: 640px) { .news-item { grid-template-columns: 1fr; } }

/* ---------- CTA ---------- */
.cta {
  position: relative; overflow: hidden;
  background: var(--grad-cta);
  color: #fff; border-radius: 24px; padding: clamp(45px, 6vw, 72px); text-align: center;
  box-shadow: 0 30px 80px rgba(10, 27, 51, .35);
}
.cta::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(620px 320px at 82% 0%, rgba(0, 194, 209, .35), transparent 60%),
    radial-gradient(520px 280px at 0% 100%, rgba(79, 140, 255, .30), transparent 60%);
}
.cta > * { position: relative; z-index: 1; }
.cta h2 { color: #fff; font-size: clamp(29px, 3.6vw, 45px); letter-spacing: -.02em; }
.cta p { color: #d7e2f5; font-size: 19px; }
@media (max-width: 640px) { .cta { padding: 36px 22px; } }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 15px; border: 1px solid var(--line-strong); border-radius: 12px;
  font-size: 17px; font-family: inherit; background: #fff; color: var(--ink);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(20, 86, 201, .15); }
.field textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: 15px; color: var(--muted); }
.form-msg { margin-top: 14px; font-size: 16px; font-weight: 600; }
.form-msg.ok { color: #0a8f4d; }
.form-msg.err { color: #d23b3b; }
.form-msg.busy { color: #888; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

/* 深色区块内的表单字段：玻璃质感，避免「白底白字」不可读 */
.section--dark .field label,
.section.soft .field label { color: #C7D3E6; }
.section--dark .field input,
.section.soft .field input,
.section--dark .field textarea,
.section.soft .field textarea,
.section--dark .field select,
.section.soft .field select {
  background: rgba(255, 255, 255, .06);
  border-color: rgba(255, 255, 255, .20);
  color: #EAF1FB;
}
.section--dark .field input::placeholder,
.section.soft .field input::placeholder,
.section--dark .field textarea::placeholder,
.section.soft .field textarea::placeholder { color: rgba(157, 176, 204, .7); }
.section--dark .field input:focus,
.section.soft .field input:focus,
.section--dark .field textarea:focus,
.section.soft .field textarea:focus,
.section--dark .field select:focus,
.section.soft .field select:focus { border-color: var(--blue-2); box-shadow: 0 0 0 3px rgba(79, 140, 255, .25); }
.section--dark .form-note,
.section.soft .form-note { color: #9DB0CC; }

/* 联系信息 */
.contact-info li { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.contact-info .ico { font-size: 22px; }
.contact-info b { display: block; }
.contact-info span { color: var(--muted); font-size: 16px; }

/* 联系页地图与二维码尺寸优化（与右侧表单比例协调） */
.contact-split { align-items: start; }
.qr-img {
  display: block; width: 150px; height: auto; margin-top: 10px;
  border: 1px solid #e5e7eb; border-radius: 10px; background: #fff;
  padding: 8px; box-shadow: 0 2px 10px rgba(0, 0, 0, .06);
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #0A1B33 0%, #070B16 100%); color: #b9c6db; padding: 72px 0 30px;
}
.site-footer::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(700px 300px at 100% 0%, rgba(0, 194, 209, .12), transparent 60%);
}
.site-footer a { color: #b9c6db; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; position: relative; z-index: 1; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { color: #fff; font-size: 17px; margin-bottom: 16px; }
.site-footer ul li { padding: 6px 0; font-size: 16px; }
.footer-brand .logo { width: 60px; height: 60px; border-radius: 16px; background: #fff; display: inline-flex; align-items: center; justify-content: center; color: var(--blue); font-size: 26px; font-weight: 800; letter-spacing: .5px; margin-bottom: 14px; box-shadow: 0 6px 18px rgba(0, 0, 0, .25); border: 1px solid rgba(255, 255, 255, .4); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .12); margin-top: 44px; padding-top: 22px; font-size: 15px; color: #8fa0bd; text-align: center; }

/* ---------- 404 ---------- */
.notfound { text-align: center; padding: 120px 0; }
.notfound .code { font-size: 120px; font-weight: 900; color: var(--line-strong); line-height: 1; }

/* ---------- 待补充清单页 ---------- */
.checklist-hero { background: var(--bg-soft); padding: 60px 0 40px; border-bottom: 1px solid var(--line); }
.checklist table { width: 100%; border-collapse: collapse; margin: 20px 0 40px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.checklist th, .checklist td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); font-size: 16px; vertical-align: top; }
.checklist th { background: var(--navy); color: #fff; font-size: 15px; letter-spacing: .5px; }
.checklist tr:last-child td { border-bottom: 0; }
.checklist .prio { font-weight: 700; }
.checklist .prio.high { color: #d23b3b; }
.checklist .prio.mid { color: #d98a00; }
.checklist .prio.low { color: #0a8f4d; }
.checklist .box { width: 20px; }
.checklist input[type=checkbox] { width: 18px; height: 18px; }

/* 面包屑 */
.crumb { font-size: 15px; color: var(--muted); padding: 16px 0; }
.crumb a:hover { color: var(--blue); }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: block; }
}

/* =========================================================================
 * 无线充电 PCBA 模块 — 扩展组件（WZY 微智优）
 * ========================================================================= */

/* 多维筛选工具栏 */
/* 「全部 / 主推」切换按钮组：置于筛选工具栏最顶部 */
.filter-row--toggle {
  margin-bottom: 4px;
}
.filter-row--toggle .fr-label {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.02em;
  min-width: 72px;
  flex: 0 0 auto;
}
/* 筛选引导提示（右上角，醒目不遮挡） */
.filter-hint {
  margin-left: auto;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #06B6D4 0%, #0891B2 100%);
  border: 1px solid rgba(8,145,178,.45);
  border-radius: 999px;
  padding: 9px 20px;
  white-space: nowrap;
  letter-spacing: .02em;
  box-shadow: 0 4px 14px rgba(8,145,178,.30);
  animation: filterHintPulse 3s ease-in-out infinite;
}
@keyframes filterHintPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(8,145,178,.18); }
  50%      { box-shadow: 0 0 0 6px rgba(8,145,178,.06); }
}
.featured-toggle-group {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: #f1f5f9;
  border-radius: 999px;
  padding: 3px;
  border: 1px solid #e2e8f0;
}
.btn-toggle {
  position: static;
  transform: none;
  border: none !important;
  background: transparent !important;
  color: var(--muted, #64748b) !important;
  box-shadow: none !important;
  padding: 7px 20px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: 999px;
  transition: all .2s ease;
  cursor: pointer;
}
.btn-toggle:hover {
  color: var(--ink, #1e293b) !important;
  background: rgba(255,255,255,.6) !important;
}
.btn-toggle.active {
  background: #fff !important;
  color: #b5531f !important;
  box-shadow: 0 2px 8px rgba(0,0,0,.08) !important;
  font-weight: 700;
}
.section--dark .featured-toggle-group,
.section.soft .featured-toggle-group {
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.1);
}
.section--dark .btn-toggle,
.section.soft .btn-toggle {
  color: rgba(255,255,255,.5) !important;
}
.section--dark .btn-toggle:hover,
.section.soft .btn-toggle:hover {
  color: rgba(255,255,255,.85) !important;
  background: rgba(255,255,255,.08) !important;
}
.section--dark .btn-toggle.active,
.section.soft .btn-toggle.active {
  background: linear-gradient(135deg, #e6a23c, #d48c1f) !important;
  color: #fff !important;
  box-shadow: 0 2px 12px rgba(230,162,60,.35) !important;
}

/* 品类筛选条容器 */
.type-filter-zone { position: relative; flex: 1; min-width: 0; }

.filter-toolbar { display: flex; flex-direction: column; gap: 16px; margin: 56px 0 30px; }
.filter-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.filter-row .fr-label {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.02em;
  min-width: 72px;
  flex: 0 0 auto;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(79, 140, 255, 0.12);
  border: 1px solid rgba(79, 140, 255, 0.22);
  text-align: center;
}
.filter-bar { justify-content: flex-start; margin-bottom: 0; }
.filter-select {
  border: 1px solid var(--line-strong); background: #fff; color: var(--ink);
  padding: 8px 14px; border-radius: 999px; font-size: 16px; font-weight: 600; cursor: pointer;
}
.filter-select:focus { outline: none; border-color: var(--blue); }
.product-count { text-align: center; color: var(--muted); font-size: 16px; margin-top: 26px; }
.product-count b { color: var(--blue); }

/* 产品卡徽标 */
.pc-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.badge-power, .badge-type, .badge-iface {
  font-size: 14px; font-weight: 700; padding: 3px 10px; border-radius: 999px; line-height: 1.6;
}
.badge-power { background: #EAF1FE; color: var(--blue); }
.badge-type { background: #EAF7EF; color: #0a8f4d; }
.badge-iface { background: var(--accent-soft); color: #0a7c86; }
.product-card .pc-spec { font-size: 15px; color: var(--ink); margin: 6px 0 10px; font-weight: 500; }
.pc-feats { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.pc-feat { font-size: 14px; color: var(--muted); background: var(--bg-soft); border: 1px solid var(--line); padding: 3px 9px; border-radius: 6px; }
/* 卡片底部：价格 + 查看；详情页价格与原文区块 */
.pc-foot { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 12px; gap: 8px; }
.pc-price { font-size: 15px; color: var(--blue); font-weight: 600; white-space: nowrap; }

/* ============ 产品中心 · 参考规格表风格（青色分组标题 + 10列网格） ============ */
/* overflow-x: clip 只裁剪横向溢出，不创建滚动容器，
   从而不影响 thead 的 sticky 锁定到视口（避免标题行随容器滚走） */
#product-grid { overflow-x: clip; }
/* ================================================================
   Excel 风格冻结窗格：筛选栏 + 产品计数 + 表头 滚动时锁定
   层级（从上到下）：导航栏(sticky top:0) → 筛选栏 → 计数行 → 表头
   ================================================================ */

/* ---- 移动端筛选折叠按钮（仅窄屏显示）---- */
.filter-toggle-btn {
  display: none;                     /* 桌面端隐藏 */
}
@media (max-width: 768px) {
  .filter-toggle-btn {
    display: flex;                   /* 移动端显示 */
    align-items: center; justify-content: center; gap: 8px;
    width: 100%; padding: 10px 16px;
    margin-bottom: 0;
    font-size: 15px; font-weight: 700;
    color: var(--blue, #2563eb);
    background: #fff;
    border: 1.5px solid var(--blue, #2563eb);
    border-radius: 10px;
    cursor: pointer;
    transition: background .2s, color .2s;
    box-shadow: 0 2px 8px rgba(37,99,235,.12);
  }
  .filter-toggle-btn:hover { background: #eff6ff; }
  .filter-toggle-btn .ftb-icon { font-size: 11px; transition: transform .25s ease; }
  /* 收起状态：箭头向下 */
  .filter-toggle-btn[aria-expanded="false"] .ftb-icon { transform: rotate(180deg); }
  .filter-toggle-btn[aria-expanded="false"] .ftb-text { content: "展开筛选"; }

  /* 筛选栏收起态：隐藏所有筛选行，只留工具栏容器占位 */
  .filter-toolbar.filter-collapsed { max-height: 0; overflow: hidden; padding-top: 0; padding-bottom: 0; margin: 0; box-shadow: none; border-radius: 0; opacity: 0; transition: max-height .3s ease, opacity .2s ease, padding .3s ease, margin .3s ease; }
  .filter-toolbar { transition: max-height .35s ease, opacity .2s ease; max-height: 800px; opacity: 1; }

  /* 移动端筛选区内间距压缩（减少垂直占用） */
  .filter-toolbar { gap: 10px; padding: 10px 6px 8px; }
  .filter-row { gap: 8px; }
  .filter-row .fr-label { font-size: 14px; min-width: 56px; padding: 4px 10px; }
  .filter-row--toggle .fr-label { font-size: 15px; min-width: 60px; }
  .filter-hint { font-size: 13px; padding: 6px 14px; }
  .btn-toggle { padding: 6px 14px; font-size: 14px; }
  .filter-bar { gap: 7px; margin-bottom: 0; }
  .filter-bar button { font-size: 13px; padding: 5px 12px; }

  /* 移动端禁用 sticky（避免高度估算不准导致遮挡），改为正常流布局 */
  .filter-toolbar { position: relative; top: auto; }
  .filter-toolbar + .product-count { position: relative; top: auto; }
}

/* 1) 筛选工具栏 —— 锁定在导航栏正下方 */
.filter-toolbar {
  position: sticky;
  top: var(--nav-h, 76px);
  z-index: 10;
  background: #f8fafc;           /* 与 section--light 背景融合 */
  padding: 12px 4px 10px;
  margin: 0 0 0;                 /* 覆盖原有大 margin */
  box-shadow: 0 2px 10px rgba(0, 0, 0, .06);
  border-radius: 12px 12px 0 0;
}

/* 2) 产品计数行 —— 锁定在筛选栏正下方 */
.filter-toolbar + .product-count {
  position: sticky;
  top: calc(var(--nav-h, 76px) + var(--freeze-filter-h, 250px));
  z-index: 9;
  background: #f8fafc;
  padding: 8px 4px;
  margin: 0;
  text-align: center;
}

/* 3) 表头行 —— 冻结（sticky），滚动时锁定在筛选栏+计数行正下方，始终可见 */
.prod-table thead tr {
  position: sticky;
  top: calc(var(--nav-h, 76px) + var(--freeze-filter-h, 250px) + var(--freeze-count-h, 28px));
  z-index: 8;
}
.prod-table thead th {
  background: #eef1f5;            /* 实底色，防止滚动时下方内容透出 */
  box-shadow: 0 2px 4px rgba(0,0,0,.08);  /* 与下方数据行分隔的阴影线 */
}

/* 分类标题行 —— 正常文档流，不做 sticky（避免在 overflow 容器中位置错乱） */

/* ---- 移动端收窄时：sticky 已在上面禁用，此处仅保留表头微调 ---- */
@media (max-width: 768px) {
  .prod-table thead tr { top: 0; }   /* 移动端表头不冻结（避免与折叠筛选冲突） */
}
/* 超小屏（手机竖屏）：产品表图片进一步缩小，确保表格可横向滚动查看 */
@media (max-width: 520px) {
  .prod-table .pc-thumb .ph { width: 150px; height: 150px; max-height: 150px; }
  .prod-table { font-size: 12px; min-width: 860px; }
  .prod-table th, .prod-table td { padding: 6px 4px; }
  /* 产品网格容器允许横向滚动 */
  #product-grid { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  /* 型号最多2行（移动端同样适用） */
  .prod-table .pc-model-cell .pc-model { font-size: 11px; -webkit-line-clamp: 2; }
}

/* table-layout: fixed —— 锁定列宽，长文本在单元格内换行，杜绝溢出压字 */
.prod-table {
  table-layout: fixed;
  width: 100%; border-collapse: collapse; min-width: 960px;
  font-size: 14px; border: 2px solid #333;
  margin-bottom: 26px;   /* 各模块独立成表，留间距作分段分隔 */
}
.prod-table:last-child { margin-bottom: 0; }
/* 列宽分配（固定布局下按比例缩放；类名与列位置无关，兼容 9列/RX 与 10列/TX·PB。
   含「输入供电方式」的 10 列合计 100%；RX 表少该列（9列≈88%）由 fixed 布局自动等比补足） */
.prod-table thead th.col-thumb-w   { width: 20%; }   /* 样板图片（整体放大，便于看清） */
.prod-table thead th.col-name-w    { width: 12%; }  /* 产品名称 */
.prod-table thead th.col-model-w   { width: 10%; }   /* 型号 */
.prod-table thead th.col-pcb-w     { width: 8%; }   /* PCB尺寸 */
.prod-table thead th.col-coil-w    { width: 11%; }  /* 线圈尺寸（可换行） */
.prod-table thead th.col-input-w   { width: 12%; }  /* 输入供电方式（仅 TX·PB） */
.prod-table thead th.col-voltage-w { width: 7%; }   /* 输出电压/电流 */
.prod-table thead th.col-distance-w{ width: 6%; }   /* 感应距离 */
.prod-table thead th.col-app-w     { width: 14%; }  /* 产品应用 */
.prod-table thead th.col-feat-w    { width: 14%; }  /* 产品特点 */
/* ---- 类别标题行（青色全宽横幅，醒目分组分隔线） ---- */
.prod-table .cat-header { }
.prod-table .cat-header td {
  background: #00BFFF !important; color: #fff !important;
  font-weight: 800; font-size: 16px; padding: 12px 20px;
  text-align: center; letter-spacing: .05em;
  border: 2px solid #009acd !important;
  line-height: 1.4;
  /* 确保在 overflow 容器中不被裁切 */
  position: relative; z-index: 1;
}
.prod-table .cat-header-pb td { background: #FF9500 !important; border-color: #cc7700 !important; font-weight: 800; font-size: 16px; padding: 12px 20px; }
/* ---- 列头（浅灰背景 + 深色文字 · 加大字号 + 允许换行） ---- */
.prod-table thead th {
  text-align: center; padding: 12px 10px; background: #f0f0f0;
  color: #222; font-weight: 700; font-size: 15px;
  border: 1px solid #aaa;
  white-space: normal; line-height: 1.35;
}
/* ---- 覆盖旧卡片 flex 布局 ---- */
#product-grid .product-card { display: table-row; }
/* ---- 数据行（清晰网格线） ---- */
.prod-table tbody tr.product-card {
  border: 1px solid #ddd; transition: background .15s ease;
  cursor: pointer;
}
.prod-table tbody tr.product-card:hover { background: #f8fbff; }
/* 主推产品：绿色底色，与后台一致，视觉区分主推与非主推 */
.prod-table tbody tr.product-card[data-featured="1"] { background: #e6f8ee; }
.prod-table tbody tr.product-card[data-featured="1"]:hover { background: #d6f5e6; }
.prod-table tbody tr.product-card[data-featured="1"] td:first-child { border-left: 3px solid #22c55e; }
/* 主推徽标 */
.pc-feat-badge {
  display: inline-block; margin-left: 8px; vertical-align: middle;
  font-size: 12px; font-weight: 700; line-height: 1;
  color: #fff; background: #22c55e; padding: 3px 8px; border-radius: 999px;
}
.prod-table td {
  padding: 10px 12px; vertical-align: middle; color: #333;
  border: 1px solid #ddd; text-align: center;
  /* 关键：允许单元格内换行，溢出隐藏，绝不压到相邻列 */
  overflow-wrap: break-word; word-break: break-word; white-space: normal;
}
/* ---- 产品图片列（固定尺寸框 · 悬停浮出放大） ---- */
.prod-table .pc-thumb { text-align: center; padding: 10px; overflow: visible; }
.prod-table .pc-thumb .ph {
  display: block !important; width: 220px; height: 220px;
  max-width: 100%; max-height: 220px;
  margin: 0 auto; overflow: visible !important;
  background: #f5f7fa; border: 1px solid #ccc; border-radius: 12px;
  box-sizing: border-box; position: relative;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.prod-table .pc-thumb .ph img {
  width: 100%; height: 100%;
  max-width: 100%; max-height: 100%;
  object-fit: contain;
  display: block; position: relative; z-index: 1;
  transition: transform .28s ease, opacity .2s ease, box-shadow .2s ease;
}
/* 悬停：缩略图就地放大 1.5 倍（平滑过渡），与后台交互统一 */
.prod-table .pc-thumb .ph:hover {
  z-index: 100;
  border-color: #00BFFF;
  box-shadow: 0 8px 32px rgba(0,191,255,.40);
}
.prod-table .pc-thumb .ph:hover > img:first-child {
  transform: scale(1.5);  /* 明确的 1.5 倍放大 */
}
/* 浮出大图（默认隐藏，悬停时显示）：position:fixed 居中，不受表格 overflow 裁切；平滑放大进入 */
.prod-table .pc-thumb .ph .zoom-preview {
  display: none;
}
.prod-table .pc-thumb .ph:hover .zoom-preview {
  display: block;
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: auto; height: auto;
  max-width: min(640px, 82vw);
  max-height: min(640px, 82vh);
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 24px 70px rgba(0,0,0,.38);
  z-index: 9999;
  pointer-events: none;
  background: #fff;
  padding: 10px;
  animation: wzyZoomIn .24s ease-out;
}
@keyframes wzyZoomIn {
  from { opacity: 0; transform: translate(-50%, -50%) scale(.92); }
  to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
/* ---- 型号列（居中，等宽字体，最多2行） ---- */
.prod-table .pc-model-cell { text-align: center; }
.prod-table .pc-model-cell .pc-model {
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-weight: 700; font-size: 12px; color: #111;
  word-break: break-all;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.prod-table .pc-model-cell .pc-name {
  color: #666; font-size: 12px; margin-top: 2px;
}
/* ---- 各规格列（统一可换行，不再 nowrap 溢出） ---- */
.prod-table .pc-name-cell,
.prod-table .pc-size, .prod-table .pc-coil,
.prod-table .pc-voltage, .prod-table .pc-distance,
.prod-table .pc-application, .prod-table .pc-features { font-size: 13px; color: #444; line-height: 1.5; }
/* 输入供电方式：每项独占一行（PD / QC / DC 12V/2A），居中显示 */
.prod-table .pc-input-power { font-size: 13px; color: #444; text-align: center; vertical-align: middle; line-height: 1.6; }
/* 感应距离：值较短（如 2-6mm / 8-12mm），禁止换行避免断成 "2-\n6m\nm" */
.prod-table .pc-distance { white-space: nowrap; text-align: center; }
.prod-table .pc-name-cell { text-align: center; vertical-align: middle; font-weight: 600; color: #222; line-height: 1.15; }
/* 产品名称两行格式：第一行「无线充电」，第二行规格（如 2W接收模块），紧凑居中 */
.prod-table .pc-name-cell .pn-line1 { display: block; font-size: 13px; font-weight: 600; line-height: 1.15; }
.prod-table .pc-name-cell .pn-line2 { display: block; font-size: 12px; font-weight: 600; color: #333; line-height: 1.15; margin-top: -1px; }
/* 线圈尺寸：每个维度独立一行（长/宽/厚/直径/线长），紧凑可读 */
.prod-table .pc-coil { line-height: 1.5; white-space: normal; }
/* ---- 产品应用列（标签） ---- */
.prod-table .pc-application { text-align: center; }
.prod-table .pc-application .tag-pill {
  display: inline-block; margin: 3px 2px; padding: 3px 9px;
  border: 1px solid var(--line-strong); border-radius: 999px;
  background: #f3f7fd; color: #2563ab; font-weight: 600; font-size: 12px;
}
/* ---- 产品特点列（要点列表，左对齐便于阅读） ---- */
.prod-table .pc-features { text-align: left; }
.prod-table ul.pc-feat-list { margin: 0; padding-left: 16px; text-align: left; }
.prod-table ul.pc-feat-list li { margin: 2px 0; }

/* 首页产品矩阵（类型 → 线圈 → 功率） */
.product-matrix { margin-top: 8px; }
.matrix-group { margin-bottom: 44px; }
.matrix-group:last-child { margin-bottom: 0; }
.matrix-group-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px; border-left: 4px solid var(--blue); padding-left: 14px; }
.matrix-group-head h3 { margin: 0; font-size: 25px; }
.matrix-group-head span { color: var(--muted); font-size: 15px; font-family: ui-monospace, Menlo, monospace; }
.matrix-card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .25s ease, border-color .25s ease; }
.matrix-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.matrix-card h4 { margin: 0 0 12px; font-size: 20px; }
.mp-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.mp-pill { display: inline-block; font-size: 15px; font-weight: 600; color: var(--blue); background: var(--accent-soft); border: 1px solid rgba(37, 99, 235, .2); padding: 6px 12px; border-radius: 999px; text-decoration: none; transition: .15s; }
.mp-pill span { color: var(--muted); font-weight: 500; }
.mp-pill:hover { background: var(--blue); color: #fff; }
.mp-pill:hover span { color: rgba(255, 255, 255, .85); }
.mp-custom { display: inline-block; font-size: 15px; font-weight: 700; color: #b45309; background: #fff7ed; border: 1px solid #fdba74; padding: 6px 12px; border-radius: 999px; text-decoration: none; }
.mp-custom:hover { background: #fdba74; }

/* 图片灯箱（点击放大） */
.lb-overlay { position: fixed; inset: 0; background: rgba(8, 15, 30, .92); display: none; align-items: center; justify-content: center; z-index: 1000; padding: 32px; }
.lb-overlay.open { display: flex; }
.lb-overlay .lb-img { max-width: 92vw; max-height: 92vh; width: auto; height: auto; object-fit: contain; background: #fff; border-radius: 10px; box-shadow: 0 20px 60px rgba(0, 0, 0, .5); cursor: zoom-out; }
.lb-overlay .lb-close { position: absolute; top: 18px; right: 22px; width: 44px; height: 44px; border-radius: 50%; border: none; background: rgba(255, 255, 255, .15); color: #fff; font-size: 29px; line-height: 1; cursor: pointer; }
.lb-overlay .lb-close:hover { background: rgba(255, 255, 255, .3); }
.zoomable { cursor: zoom-in; }
.detail-price { font-size: 17px; color: var(--blue); font-weight: 600; margin: 6px 0 14px; }
.use-text { line-height: 1.9; color: var(--ink); }
.use-text > p { margin: 0 0 10px 0; }
.spec-raw li { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 15px; line-height: 1.85; }

/* 技术参数模块 */
.spec-block { margin-top: 56px; }
.spec-block .section-head { margin-bottom: 24px; }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 820px) { .spec-grid { grid-template-columns: 1fr; } }
.spec-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-table caption { text-align: left; font-weight: 700; color: var(--navy); padding: 14px 16px; background: var(--bg-soft); font-size: 16px; border-bottom: 1px solid var(--line); }
.spec-table th, .spec-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); font-size: 16px; vertical-align: top; }
.spec-table th { width: 40%; color: var(--muted); font-weight: 600; background: #fff; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table .val { color: var(--ink); font-weight: 600; }
.spec-note { font-size: 14px; color: var(--muted); margin-top: 12px; }
.feature-list { margin: 0; padding: 0; }
.feature-list li { padding: 11px 0 11px 26px; border-bottom: 1px solid var(--line); color: var(--ink); position: relative; }
.feature-list li::before { content: "✓"; position: absolute; left: 0; top: 11px; color: var(--blue); font-weight: 800; }

/* 认证条 */
.cert-strip { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin: 28px 0; }
.cert-strip .cert { border: 1px solid var(--line-strong); border-radius: 12px; padding: 14px 22px; background: #fff; font-weight: 700; color: var(--navy); font-size: 17px; box-shadow: var(--shadow); }
.cert-note { text-align: center; color: var(--muted); font-size: 15px; }

/* 能力 / 产线小卡 */
.cap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 900px) { .cap-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .cap-grid { grid-template-columns: 1fr; } }
.cap { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); transition: transform .18s ease, box-shadow .2s ease; }
.cap:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.cap .ico { font-size: 29px; margin-bottom: 12px; }
.cap h3 { font-size: 19px; margin: 0 0 8px; }
.cap p { font-size: 16px; color: var(--muted); margin: 0; }

/* 场景推荐 chips */
.rec-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.rec-chip { font-size: 15px; font-weight: 600; color: var(--blue); background: var(--accent-soft); border: 1px solid #bfe6ea; padding: 6px 14px; border-radius: 999px; transition: .15s; }
a.rec-chip:hover { background: var(--blue); color: #fff; border-color: var(--blue); }
.scenario-req { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 16px; }
.scenario-req b { display: block; font-size: 17px; color: var(--blue); }
.scenario-req span { font-size: 15px; color: var(--muted); }

/* ---------- 无线充电宝品类页 ---------- */
.powerbank-layout { display: grid; grid-template-columns: 280px 1fr; gap: 28px; align-items: start; }
@media (max-width: 900px) { .powerbank-layout { grid-template-columns: 1fr; } }

.powerbank-sidebar { position: sticky; top: calc(var(--nav-h) + 24px); }
.filter-card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.filter-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.filter-head h3 { font-size: 20px; margin: 0; }
.filter-group { margin-bottom: 20px; }
.filter-group h4 { font-size: 16px; color: var(--muted); margin: 0 0 10px; font-weight: 700; }
.filter-options { display: flex; flex-direction: column; gap: 8px; }
.filter-chip { display: flex; align-items: center; gap: 8px; font-size: 16px; color: var(--ink); cursor: pointer; padding: 6px 8px; border-radius: 8px; transition: background .15s; }
.filter-chip:hover { background: var(--bg-soft); }
.filter-chip input { width: 16px; height: 16px; accent-color: var(--blue); }
.filter-chip small { color: var(--muted); }

.powerbank-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
.sort-bar { display: flex; align-items: center; gap: 10px; font-size: 16px; color: var(--muted); }
.sort-bar select { padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink); font-size: 16px; }

.powerbank-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
@media (max-width: 640px) { .powerbank-grid { grid-template-columns: 1fr; } }

.powerbank-card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: transform .18s ease, box-shadow .2s ease; display: flex; flex-direction: column; }
.powerbank-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pb-card-media { position: relative; background: #f8fafd; aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; }
.pb-card-media img { width: 100%; height: 100%; object-fit: contain; padding: 16px; }
.pb-status { position: absolute; top: 12px; right: 12px; font-size: 14px; font-weight: 700; padding: 5px 10px; border-radius: 999px; color: #fff; }
.pb-status.status-active { background: #22c55e; }
.pb-status.status-discontinued { background: #94a3b8; }
.pb-status.status-other { background: var(--blue); }
.pb-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.pb-card-body h3 { font-size: 20px; margin: 0 0 6px; color: var(--navy); }
.pb-model { font-size: 15px; color: var(--muted); margin: 0 0 12px; }
.pb-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.pb-tag { font-size: 14px; font-weight: 700; color: var(--blue); background: var(--accent-soft); border: 1px solid #bfe6ea; padding: 4px 10px; border-radius: 999px; }
.pb-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: auto; }
.pb-spec { display: flex; flex-direction: column; gap: 2px; }
.pb-spec span { font-size: 14px; color: var(--muted); }
.pb-spec b { font-size: 15px; color: var(--ink); font-weight: 600; }

.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 32px; flex-wrap: wrap; }
.pg-info { font-size: 16px; color: var(--muted); margin-right: 8px; }
.pg-dots { color: var(--muted); padding: 0 4px; }
.pagination .btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- 无线充电宝管理后台 ---------- */
.admin-card { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.admin-grid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .admin-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .admin-grid { grid-template-columns: 1fr; } }
.admin-actions { display: flex; gap: 12px; margin-top: 20px; }
.admin-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.admin-toolbar h3 { margin: 0; }
.table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 16px; }
.admin-table th, .admin-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
.admin-table th { background: var(--bg-soft); color: var(--muted); font-weight: 700; }
.admin-table tr:hover td { background: var(--bg-soft); }
.admin-table .btn-sm { padding: 6px 10px; font-size: 14px; }
.text-center { text-align: center; }
.form-success { color: #15803d; background: #dcfce7; padding: 10px 14px; border-radius: 8px; }
.form-error { color: #b91c1c; background: #fee2e2; padding: 10px 14px; border-radius: 8px; }

/* ===== 联系页交互地图（Leaflet + 高德公开瓦片，零密钥） ===== */
.map-wrap { width: 100%; }
.map-canvas {
  position: relative;
  width: 100%;
  height: 440px;
  border: 1px solid var(--line, #ccc);
  border-radius: 14px;
  overflow: hidden;
  /* 离线 / 瓦片未加载时显示定位截图，瓦片加载后自动覆盖 */
  background: #eef2f8 url("assets/images/location-map.jpg") center/cover no-repeat;
  box-shadow: 0 10px 30px -18px rgba(13, 27, 62, .45);
}
/* Leaflet 控件在深色背景下保持可读；瓦片加载前背景截图透出 */
.leaflet-container { font: inherit; background: transparent; }
.leaflet-control-attribution { font-size: 13px; }
.wzy-pop { font-size: 15px; line-height: 1.7; color: #222; }
.wzy-pop-title { font-size: 17px; font-weight: 700; color: #cc5522; margin-bottom: 6px; }
.wzy-pop-row b { color: #555; margin-right: 4px; }
@media (max-width: 768px) {
  .map-canvas { height: 320px; }
}

/* ===== 消费电子：无线充电状态可视化组件（全站可复用真实组件 · iPhone 17 Pro 宇宙橙主题） ===== */
.wzy-charge {
  /* 作用域内橙色主题变量：不污染站点其它部分 */
  --wc-accent: #C26B3D;       /* iPhone 17 Pro Cosmic Orange 宇宙橙 */
  --wc-accent2: #E8954E;      /* 亮橙，用于光圈/渐变层次 */
  --wc-glow: rgba(194, 107, 61, .55);
  --wc-text: #fff3ea;         /* 暖白 */
  --wc-muted: #c9a98f;        /* 暖灰棕 */
  display: flex; justify-content: center; align-items: center; padding: 12px; width: 100%;
}
.wzy-charge .phone {
  position: relative; width: 200px; height: 420px; border-radius: 34px; padding: 10px;
  background:
    linear-gradient(145deg, rgba(255,255,255,.34) 0%, rgba(255,255,255,0) 16%),
    linear-gradient(145deg, #E08A4E 0%, #C26B3D 42%, #9E4F29 100%);
  box-shadow:
    0 22px 50px -12px rgba(194,107,61,.55),
    0 0 0 1px rgba(255,255,255,.22),
    inset 0 1px 0 rgba(255,255,255,.5),
    inset 0 0 0 2px rgba(120,60,30,.28);
}
.wzy-charge .notch {
  position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
  width: 80px; height: 18px; border-radius: 12px; background: #05070f; z-index: 6;
}
.wzy-charge .screen {
  position: relative; width: 100%; height: 100%; border-radius: 26px; overflow: hidden;
  background: radial-gradient(120% 80% at 50% 28%, #2a1810 0%, #140b07 72%);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px;
}
.wzy-charge .charge-wrap { position: relative; width: 160px; height: 160px; display: grid; place-items: center; }
.wzy-charge .progress { position: absolute; inset: 0; z-index: 1; }
.wzy-charge .wzy-prog { stroke: var(--wc-accent, #C26B3D); }
.wzy-charge .ring-spin {
  position: absolute; width: 144px; height: 144px; border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, var(--wc-accent) 40deg, transparent 80deg, transparent 180deg, var(--wc-accent2) 220deg, transparent 260deg);
  -webkit-mask: radial-gradient(transparent 63%, #000 64%);
  mask: radial-gradient(transparent 63%, #000 64%);
  animation: wzy-spin 4s linear infinite;
  filter: drop-shadow(0 0 8px var(--wc-glow)); z-index: 2;
}
@keyframes wzy-spin { to { transform: rotate(360deg); } }
.wzy-charge .pulse {
  position: absolute; width: 88px; height: 88px; border-radius: 50%;
  border: 1px solid var(--wc-accent, #C26B3D);
  animation: wzy-pulse 2.6s ease-out infinite; z-index: 2;
}
.wzy-charge .pulse.d2 { animation-delay: 1.3s; }
@keyframes wzy-pulse { 0% { transform: scale(.55); opacity: .85; } 100% { transform: scale(2.1); opacity: 0; } }
.wzy-charge .core {
  position: relative; z-index: 3; width: 104px; height: 104px; border-radius: 50%;
  display: grid; place-items: center; gap: 3px;
  background: radial-gradient(circle at 50% 38%, rgba(232,149,78,.30), rgba(232,149,78,.04) 70%);
  box-shadow: 0 0 34px var(--wc-glow), inset 0 0 24px rgba(232,149,78,.18);
  animation: wzy-breathe 3s ease-in-out infinite;
}
@keyframes wzy-breathe {
  0%, 100% { box-shadow: 0 0 30px var(--wc-glow), inset 0 0 20px rgba(232,149,78,.14); }
  50% { box-shadow: 0 0 48px var(--wc-glow), inset 0 0 30px rgba(232,149,78,.24); }
}
.wzy-charge .core svg { width: 30px; height: 30px; fill: #fff1e6; filter: drop-shadow(0 0 5px rgba(232,149,78,.55)); }
.wzy-charge .pct { font-size: 25px; font-weight: 700; letter-spacing: .5px; line-height: 1; color: var(--wc-text); }
.wzy-charge .pct small { font-size: 13px; font-weight: 600; opacity: .8; margin-left: 1px; }
.wzy-charge .caption { text-align: center; }
.wzy-charge .caption .status { font-size: 16px; font-weight: 600; letter-spacing: .5px; color: var(--wc-text); }
.wzy-charge .caption .sub { font-size: 12px; color: var(--wc-muted); margin-top: 4px; }
@media (max-width: 520px) { .wzy-charge .phone { transform: scale(.88); transform-origin: top center; } }

/* ===== 实时演示：居中展示区（去除白框后的优化布局） ===== */
.demo-stage {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: 32px 0;
}
/* 手机背后的辐射光晕 */
.demo-stage::before {
  content: "";
  position: absolute;
  width: 320px; height: 520px;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(194,107,61,.18) 0%, rgba(194,107,61,.06) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}
/* 确保手机在光晕之上 */
.demo-stage > .wzy-charge {
  position: relative; z-index: 1;
  padding: 24px;
}

/* ===== 消费电子：TWS 耳机无线充电（会动插画，蓝色跑马灯） ===== */

/* =========================================================================
 * 消费电子：三合一无线充电器（科技风浮层产品展示）
 * ========================================================================= */
.wzy-3in1-static {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
}

/* ── 图片容器（相对定位，承载浮层）── */
.threein1-wrapper {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow:
    0 18px 44px -16px rgba(15,23,42,.28),
    0 0 0 1px rgba(148,163,184,.12);
}
.wzy-3in1-static .threein1-base {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* ── 科技浮层 ── */
.threein1-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px 18px 16px;
}

/* ── 右上角：功率徽章 ── */
.threein1-badge {
  align-self: flex-end;
  background: rgba(15,23,42,.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(56,189,248,.22);
  border-radius: 12px;
  padding: 10px 16px;
  text-align: right;
  box-shadow:
    0 4px 20px -4px rgba(0,0,0,.35),
    inset 0 1px 0 rgba(255,255,255,.06);
}
.badge-title {
  display: block;
  font-size: 25px;
  font-weight: 800;
  letter-spacing: .5px;
  color: #38bdf8;
  line-height: 1.2;
  text-shadow: 0 0 18px rgba(56,189,248,.35);
}
.badge-sub {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #94a3b8;
  margin-top: 2px;
  letter-spacing: 1px;
}

/* ── 底部：技术标签组 ── */
.threein1-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}
.tech-tag {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .3px;
  color: #e2e8f0;
  background: rgba(15,23,42,.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(148,163,184,.18);
  border-radius: 6px;
  padding: 4px 10px;
  white-space: nowrap;
  box-shadow: 0 2px 8px -2px rgba(0,0,0,.25);
}

/* ── caption（图下方说明文字，不变）── */
.wzy-3in1-static .caption { margin-top: 14px; }
.wzy-3in1-static .caption .status { font-size: 17px; font-weight: 700; letter-spacing: .3px; color: #0f172a; }
.wzy-3in1-static .caption .sub { font-size: 14px; color: #64748b; margin-top: 4px; }

@media (max-width: 600px) {
  .wzy-3in1-static { max-width: 340px; }
  .badge-title { font-size: 19px; }
  .badge-sub { font-size: 12px; }
  .tech-tag { font-size: 11px; padding: 3px 7px; }
  .threein1-overlay { padding: 14px 12px 10px; }
}

/* =========================================================================
 * 特色应用：安卓手机无线反向充电 → 智能锁（Spotlight 深色高亮模块）
 * ========================================================================= */

/* —— 视觉分隔线 —— */
.spotlight-divider {
  display: flex; align-items: center; gap: 18px;
  margin: clamp(54px, 6vw, 81px) 0 clamp(29px, 3vw, 38px);
}
.spotlight-divider::before,
.spotlight-divider::after {
  content: ""; flex: 1; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}
.spotlight-divider span {
  flex: none; font-size: 14px; font-weight: 800; letter-spacing: .22em;
  text-transform: uppercase; color: var(--blue-2);
  padding: 7px 18px; border-radius: 999px;
  background: rgba(79, 140, 255, .10);
  border: 1px solid rgba(79, 140, 255, .28);
  white-space: nowrap;
}

/* —— 深色高亮卡片 —— */
.spotlight {
  position: relative; overflow: hidden;
  border-radius: 24px;
  padding: clamp(31px, 4vw, 58px);
  margin-bottom: clamp(54px, 6vw, 81px);
  background:
    radial-gradient(900px 420px at 88% 8%, rgba(0, 194, 209, .16), transparent 62%),
    radial-gradient(760px 400px at 6% 92%, rgba(79, 140, 255, .18), transparent 60%),
    linear-gradient(158deg, #0A1B33 0%, #0E2747 58%, #071527 100%);
  box-shadow: 0 30px 74px -24px rgba(8, 15, 30, .55);
  isolation: isolate;
}
/* 细网格线装饰（mask 渐隐） */
.spotlight::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 40%, #000 20%, transparent 78%);
  mask-image: radial-gradient(ellipse at 50% 40%, #000 20%, transparent 78%);
}
.spotlight-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(29px, 4vw, 58px); align-items: center;
}

/* —— 右侧文案 —— */
.spotlight-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 800;
  letter-spacing: .18em; text-transform: uppercase; color: #7DEBEE;
  padding: 6px 13px; border-radius: 999px; margin-bottom: 16px;
  background: rgba(34, 211, 238, .12); border: 1px solid rgba(34, 211, 238, .30);
}
.spotlight-text h2 {
  font-size: clamp(29px, 3.4vw, 45px); line-height: 1.22;
  margin: 0 0 16px; color: #fff; letter-spacing: -.02em;
}
.spotlight-lead {
  font-size: 18.5px; line-height: 1.8; color: #B9C9E2; margin: 0 0 26px;
}

/* 操作步骤 */
.rvc-steps { display: grid; gap: 13px; margin-bottom: 26px; }
.rvc-step {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 14px 16px; border-radius: 14px;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .10);
  transition: border-color .25s ease, background .25s ease, transform .25s ease;
}
.rvc-step:hover {
  border-color: rgba(79, 140, 255, .42);
  background: rgba(79, 140, 255, .09);
  transform: translateX(3px);
}
.rvc-step-n {
  flex: none; width: 27px; height: 27px; border-radius: 50%;
  display: grid; place-items: center;
  font-size: 15px; font-weight: 800; color: #fff;
  background: var(--grad-accent);
  box-shadow: 0 4px 12px -2px rgba(79, 140, 255, .55);
}
.rvc-step b { display: block; font-size: 17px; color: #EAF1FB; margin-bottom: 3px; }
.rvc-step em {
  display: block; font-style: normal; font-size: 15px;
  line-height: 1.65; color: #90A5C4;
}

/* 核心优势 */
.rvc-adv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 11px; margin-bottom: 22px; }
.rvc-adv div {
  text-align: center; padding: 14px 8px; border-radius: 13px;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .10);
}
.rvc-adv b {
  display: block; font-size: 19px; margin-bottom: 4px;
  background: var(--grad-accent); -webkit-background-clip: text;
  background-clip: text; -webkit-text-fill-color: transparent;
}
.rvc-adv span { font-size: 14px; color: #8FA4C2; line-height: 1.45; }

/* ==========================================================================
 * 反向充电动画：流体内联科技感动漫（自适应容器，手机+锁完整可见）
 * 容器 aspect-ratio 4:3，所有元素 % 定位，无 scale() 裁切风险
 * ========================================================================= */
.spotlight-media { display: grid; place-items: center; }

/* ---- 主容器 ---- */
.rvc-fluid {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 4 / 3;
  border-radius: 20px;
  overflow: hidden;
  background:
    radial-gradient(280px 180px at 25% 22%, rgba(0,180,255,.07), transparent 68%),
    radial-gradient(220px 160px at 78% 72%, rgba(79,140,255,.05), transparent 62%),
    linear-gradient(170deg, #0a1832 0%, #0c1e3d 40%, #071224 100%);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.09),
    0 22px 50px -18px rgba(0,0,0,.7);
}

/* ---- 背景粒子 ---- */
.rvc-particles { position:absolute; inset:0; z-index:0; overflow:hidden; pointer-events:none; }
.rvc-particles i {
  position:absolute; width:3px; height:3px; border-radius:50%;
  background:rgba(0,212,255,.45); animation:rvc-float 7s linear infinite;
}
.rvc-particles i:nth-child(1){left:10%;bottom:-4px;animation-duration:6s;animation-delay:0s;}
.rvc-particles i:nth-child(2){left:26%;bottom:-4px;animation-duration:8s;animation-delay:1.2s;}
.rvc-particles i:nth-child(3){left:52%;bottom:-4px;animation-duration:5.5s;animation-delay:2.5s;}
.rvc-particles i:nth-child(4){left:76%;bottom:-4px;animation-duration:7.5s;animation-delay:0.7s;}
.rvc-particles i:nth-child(5){left:90%;bottom:-4px;animation-duration:6.5s;animation-delay:1.8s;}
@keyframes rvc-float {
  0%   { transform:translateY(0) scale(1); opacity:0; }
  10%  { opacity:.7; }
  85%  { opacity:.25; }
  100% { transform:translateY(-100%) scale(.3); opacity:0; }
}

/* ==================== 智能锁（右侧固定） ==================== */
.rvc-lock {
  position:absolute; right:3%; top:50%; transform:translateY(-50%);
  width:40%; z-index:2;
  opacity:0; animation:rvc-lock-in 15s ease-in-out infinite;
}
@keyframes rvc-lock-in {
  0%,26%   { opacity:0; transform:translateY(-50%) translateX(24px); }
  32%,92%  { opacity:1; transform:translateY(-50%) translateX(0); }
  96%,100% { opacity:0; transform:translateY(-50%) translateX(24px); }
}
/* 智能锁产品图（大尺寸，醒目） */
.rvc-lock-img {
  width:100%; height:auto; object-fit:contain;
  filter:drop-shadow(0 10px 36px rgba(0,0,0,.6));
}
/* 智能锁标签（一眼识别，加大） */
.rvc-lock-label {
  position:absolute; bottom:-36px; left:50%; transform:translateX(-50%);
  font-size:clamp(15px, 1.7vw, 19px); font-weight:800; letter-spacing:1.2px;
  color:#00D4FF; padding:6px 18px; border-radius:999px;
  background:rgba(0,212,255,.14); border:1px solid rgba(0,212,255,.35);
  white-space:nowrap;
  text-shadow:0 0 12px rgba(0,212,255,.45);
}
/* 状态覆盖层 */
.rvc-lock-status {
  position:absolute; inset:0; display:flex; flex-direction:column;
  align-items:center; justify-content:center; pointer-events:none;
  gap:3%;
}
.rvc-lock-num {
  font-size:clamp(20px, 2.8vw, 31px); font-weight:900;
  font-family:"SF Mono","Consolas",monospace; color:#EAF1FB; letter-spacing:1px;
  opacity:0; animation:rvc-num-show 15s ease-in-out infinite;
}
@keyframes rvc-num-show{ 0%,46%{opacity:0} 52%,86%{opacity:1} 90%,100%{opacity:0} }

.rvc-lock-pct-ring{ width:52%; aspect-ratio:1; border-radius:50%; position:relative; pointer-events:none; }
.rvc-lock-pct-ring svg{width:100%;height:100%;transform:rotate(-90deg);}
.rvc-lock-pct-ring circle{
  fill:none; stroke-width:2.5; stroke-linecap:round;
  stroke:rgba(0,212,255,.22); stroke-dasharray:314; stroke-dashoffset:314;
  animation:rvc-pct-fill 15s cubic-bezier(.4,.05,.35,1) infinite;
}
@keyframes rvc-pct-fill{
  0%,48%{stroke-dashoffset:314;stroke:rgba(0,212,255,.22)}
  54%,82%{stroke-dashoffset:31;stroke:#00D4FF;filter:drop-shadow(0 0 5px rgba(0,212,255,.65))}
  88%,100%{stroke-dashoffset:314;stroke:rgba(0,212,255,.22)}
}
.rvc-lock-done{
  position:absolute; inset:0; border-radius:50%;
  display:grid; place-items:center;
  background:rgba(7,18,36,.86);
  opacity:0; animation:rvc-done-pop 15s ease-out infinite;
}
.rvc-lock-done svg{width:36%;height:36%;fill:none;stroke:#4ADE80;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 10px rgba(74,222,128,.8));}
@keyframes rvc-done-pop{
  0%,82%{opacity:0;transform:scale(.7)} 86%,94%{opacity:1;transform:scale(1)} 98%,100%{opacity:0;transform:scale(.7)}
}

/* ==================== 安卓手机（左侧，可移动） ==================== */
.rvc-phone {
  position:absolute; left:3%; top:50%;
  width:24%; z-index:3;
  animation:rvc-phone-move 15s cubic-bezier(.45,.05,.3,1) infinite;
}
/* 真实手机图片：填满容器、圆角、阴影 */
.rvc-phone-img {
  width:100%; height:auto; display:block; border-radius:20px;
  box-shadow:10px 12px 30px -8px rgba(0,0,0,.65),
    inset 0 0 0 1px rgba(255,255,255,.12);
}
@keyframes rvc-phone-move{
  0%,28%{transform:translateY(-50%) translateX(0) rotate(0)}
  38%,82%{transform:translateY(-50%) translateX(34%) rotate(-3deg)}
  90%,100%{transform:translateY(-50%) translateX(0) rotate(0)}
}
.rvc-phone-shell{
  width:100%; border-radius:20px;
  background:linear-gradient(158deg,#2c3652 0%,#1b2338 55%,#121a2d 100%);
  box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.16), 10px 12px 30px -10px rgba(0,0,0,.7);
  display:flex; flex-direction:column; align-items:center;
  padding:2.5% 1.8% 2%; gap:1%; position:relative; overflow:hidden;
}
.rvc-phone-notch{
  width:36%; height:0; padding-bottom:9%; border-radius:0 0 10px 10px;
  background:#0a1224; margin-bottom:1%;
}
.rvc-phone-screen{
  flex:1; width:100%; border-radius:12px;
  background:linear-gradient(178deg,#0d1626 0%,#060b15 100%);
  display:flex; flex-direction:column; align-items:center;
  padding:3% 2.5% 2.5%; gap:1.5%; overflow:hidden; position:relative;
}
.rvc-screen-hdr{width:100%;display:flex;align-items:center;justify-content:space-between;margin-bottom:1%;}
.rvc-screen-hdr b{font-size:clamp(11px, 1.4vw, 15px);color:#EAF1FB;font-weight:700;}
.rvc-screen-hdr span{font-size:clamp(10px, 1.2vw, 12px);color:#60A5FA;}
.rvc-screen-title{font-size:clamp(13px, 1.8vw, 18px);font-weight:800;color:#fff;align-self:flex-start;margin-bottom:2%;}
.rvc-setting-row{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:2% 2.5%;border-radius:8px;background:rgba(255,255,255,.03);margin-bottom:1%;
}
.rvc-setting-row b{font-size:clamp(10px, 1.3vw, 13px);color:#CFE0F8;font-weight:600;}
.rvc-setting-row em{font-size:clamp(8px, 1.1vw, 11px);color:#6B7A94;font-style:normal;}

/* 反向充电开关 */
.rvc-toggle-w{
  position:relative;width:clamp(31px, 5vw, 43px);aspect-ratio:1.82/1;border-radius:999px;
  background:rgba(255,255,255,.13); animation:rvc-tgl-bg 15s linear infinite;
}
.rvc-toggle-w i{
  position:absolute;top:12%;left:12%;
  width:42%;aspect-ratio:1;border-radius:50%;
  background:#cbd5e1; animation:rvc-tgl-knob 15s cubic-bezier(.5,0,.2,1) infinite;
}
@keyframes rvc-tgl-bg{
  0%,10%{background:rgba(255,255,255,.13)}
  14%,92%{background:#22c55e;box-shadow:0 0 10px rgba(34,197,94,.45)}
  96%,100%{background:rgba(255,255,255,.13)}
}
@keyframes rvc-tgl-knob{
  0%,10%{transform:translateX(0);background:#cbd5e1}
  14%,92%{transform:translateX(58%);background:#fff}
  96%,100%{transform:translateX(0);background:#cbd5e1}
}
.rvc-toggle-label{
  font-size:clamp(8px, 1vw, 10px);font-weight:700;letter-spacing:.2px;
  color:#8FA4C2;margin-top:1%; animation:rvc-lbl-clr 15s linear infinite;
}
@keyframes rvc-lbl-clr{ 0%,10%{color:#8FA4C2} 14%,92%{color:#6EE7B7} 96%,100%{color:#8FA4C2} }

/* 手机背面发射光晕 + 波纹 */
.rvc-phone-glow{
  position:absolute;right:-6%;top:50%;transform:translateY(-50%);
  width:16%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(0,212,255,.85) 0%,transparent 70%);
  opacity:0; animation:rvc-glow-on 15s linear infinite;
}
@keyframes rvc-glow-on{ 0%,36%{opacity:0} 42%,78%{opacity:1} 84%,100%{opacity:0} }
.rvc-phone-wave{position:absolute;right:0;top:50%;transform:translateY(-50%);}
.rvc-phone-wave span{
  position:absolute;left:0;top:50%;transform:translate(-50%,-50%);
  width:14%;aspect-ratio:1;border-radius:50%;
  border:1.5px solid rgba(0,212,255,.75); opacity:0; animation:rvc-wv 1.8s ease-out infinite;
}
.rvc-phone-wave span:nth-child(2){animation-delay:.9s;}
@keyframes rvc-wv{
  0%{transform:translate(-50%,-50%) scale(.4);opacity:0}
  18%{opacity:.85} 100%{transform:translate(-50%,-50%) scale(2.8);opacity:0}
}

/* ==================== 能量弧线 + 流动光点 ==================== */
.rvc-arc{
  position:absolute;left:26%;right:24%;top:36%;height:16%; opacity:0;
  animation:rvc-arc-show 15s linear infinite;
}
@keyframes rvc-arc-show{ 0%,40%{opacity:0} 46%,74%{opacity:1} 80%,100%{opacity:0} }
.rvc-arc svg{width:100%;height:100%;}
.rvc-arc path{
  fill:none;stroke:url(#rvcArcGrad);stroke-width:2;
  stroke-dasharray:300;stroke-dashoffset:300; animation:rvc-arc-draw 15s ease-in-out infinite;
}
@keyframes rvc-arc-draw{ 0%,44%{stroke-dashoffset:300} 50%,70%{stroke-dashoffset:0} 76%,100%{stroke-dashoffset:300} }

.rvc-flow{
  position:absolute;left:30%;right:28%;top:50%;height:2px;transform:translateY(-50%);
  opacity:0; animation:rvc-flow-show 15s linear infinite;
}
@keyframes rvc-flow-show{ 0%,38%{opacity:0} 44%,76%{opacity:1} 82%,100%{opacity:0} }
.rvc-flow span{
  position:absolute;top:50%;left:0;
  width:clamp(7px, 1.2vw, 11px);aspect-ratio:1;border-radius:50%;margin-top:-50%;
  background:#7DEBEE; box-shadow:0 0 10px rgba(125,235,238,.95),0 0 20px rgba(0,212,255,.45);
  animation:rvc-flow-run 1.4s linear infinite;
}
.rvc-flow span:nth-child(2){animation-delay:.28s}
.rvc-flow span:nth-child(3){animation-delay:.56s}
.rvc-flow span:nth-child(4){animation-delay:.84s}
.rvc-flow span:nth-child(5){animation-delay:1.12s}
.rvc-flow span:nth-child(6){animation-delay:1.4s}
@keyframes rvc-flow-run{
  0%{left:0;opacity:0;transform:scale(.4)}
  12%{opacity:1;transform:scale(1)}
  88%{opacity:1;transform:scale(1)}
  100%{left:100%;opacity:0;transform:scale(.4)}
}

/* ==================== 步骤字幕 ==================== */
.rvc-caps{position:absolute;left:0;right:0;bottom:5%;display:grid;place-items:center;z-index:10;}
.rvc-caps .rc{
  font-size:clamp(11px, 1.5vw, 16px);font-weight:800;color:#CFE0F8;
  padding:2.5% 5%;border-radius:999px;white-space:nowrap;
  background:rgba(8,18,40,.75);border:1px solid rgba(0,212,255,.2);
  position:absolute;opacity:0; box-shadow:0 6px 20px rgba(0,0,0,.35);
}
.rvc-caps .c1{animation:rvc-c1 15s linear infinite}
.rvc-caps .c2{animation:rvc-c2 15s linear infinite}
.rvc-caps .c3{animation:rvc-c3 15s linear infinite}
.rvc-caps .c4{animation:rvc-c4 15s linear infinite}
@keyframes rvc-c1{0%{opacity:0}3%,24%{opacity:1}28%,100%{opacity:0}}
@keyframes rvc-c2{0%,26%{opacity:0}31%,42%{opacity:1}46%,100%{opacity:0}}
@keyframes rvc-c3{0%,44%{opacity:0}49%,82%{opacity:1}86%,100%{opacity:0}}
@keyframes rvc-c4{0%,84%{opacity:0}89%,97%{opacity:1}100%{opacity:0}}

/* ==========================================================================
 * 按摩椅无线充电动漫效果（mc-fluid）
 * 产品图 + 青蓝光晕脉冲 + 浮动粒子 + 能量波纹 + 步骤字幕
 * ========================================================================= */
.mc-fluid {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 4 / 3;
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(160deg, #0d1f38 0%, #0a1832 50%, #071429 100%);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.08),
    0 22px 50px -18px rgba(0,0,0,.65);
}
.mc-chair-img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

/* ---- 充电区青蓝光晕脉冲（两层错相位） ---- */
.mc-glow-ring {
  position: absolute;
  left: 18%; top: 42%;
  width: 28%; aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,.35) 0%, rgba(0,180,255,.15) 40%, transparent 70%);
  filter: blur(8px);
  animation: mc-glow-pulse 2.8s ease-in-out infinite;
}
.mc-glow-ring-2 {
  animation-delay: 1.4s;
}
@keyframes mc-glow-pulse {
  0%, 100% { opacity: .3; transform: scale(.85); }
  50% { opacity: .8; transform: scale(1.15); }
}

/* ---- 浮动粒子（从充电区上升） ---- */
.mc-particles { position: absolute; inset: 0; z-index: 2; overflow: hidden; pointer-events: none; }
.mc-particles i {
  position: absolute;
  width: 3px; height: 3px; border-radius: 50%;
  background: rgba(0, 212, 255, .55);
  box-shadow: 0 0 6px rgba(0, 212, 255, .5);
  animation: mc-p-rise 5s linear infinite;
}
.mc-particles i:nth-child(1) { left: 24%; bottom: 32%; animation-duration: 4.5s; animation-delay: 0s; }
.mc-particles i:nth-child(2) { left: 30%; bottom: 36%; animation-duration: 5.5s; animation-delay: 0.8s; }
.mc-particles i:nth-child(3) { left: 34%; bottom: 30%; animation-duration: 4s;   animation-delay: 1.6s; }
.mc-particles i:nth-child(4) { left: 28%; bottom: 38%; animation-duration: 6s;   animation-delay: 2.2s; }
.mc-particles i:nth-child(5) { left: 36%; bottom: 34%; animation-duration: 4.8s; animation-delay: 3s; }
.mc-particles i:nth-child(6) { left: 22%; bottom: 35%; animation-duration: 5.2s; animation-delay: 3.8s; }
@keyframes mc-p-rise {
  0%   { transform: translateY(0) scale(1); opacity: 0; }
  15%  { opacity: .9; }
  80%  { opacity: .25; }
  100% { transform: translateY(-120px) scale(.2); opacity: 0; }
}

/* ---- 能量波纹（从充电线圈扩散） ---- */
.mc-wave {
  position: absolute;
  left: 20%; top: 40%;
  width: 26%; aspect-ratio: 1;
  z-index: 1; pointer-events: none;
}
.mc-wave span {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid rgba(0, 212, 255, .45);
  animation: mc-w-ripple 3s ease-out infinite;
}
.mc-wave span:nth-child(2) { animation-delay: 1s; }
.mc-wave span:nth-child(3) { animation-delay: 2s; }
@keyframes mc-w-ripple {
  0%   { transform: scale(.5); opacity: .8; }
  100% { transform: scale(2.4); opacity: 0; }
}

/* ---- 步骤字幕 ---- */
.mc-caps {
  position: absolute;
  left: 0; right: 0; bottom: 5%;
  display: grid; place-items: center;
  z-index: 10;
}
.mc-caps .mc {
  font-size: clamp(11px, 1.5vw, 16px);
  font-weight: 800; color: #CFE0F8;
  padding: 2.5% 5%;
  border-radius: 999px;
  white-space: nowrap;
  background: rgba(8, 18, 40, .78);
  border: 1px solid rgba(0, 212, 255, .22);
  position: absolute;
  opacity: 0;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .35);
}
.mc-caps .c1 { animation: mc-c1 14s linear infinite; }
.mc-caps .c2 { animation: mc-c2 14s linear infinite; }
.mc-caps .c3 { animation: mc-c3 14s linear infinite; }
.mc-caps .c4 { animation: mc-c4 14s linear infinite; }
@keyframes mc-c1 { 0%{opacity:0} 2%,22%{opacity:1} 26%,100%{opacity:0} }
@keyframes mc-c2 { 0%,24%{opacity:0} 29%,40%{opacity:1} 44%,100%{opacity:0} }
@keyframes mc-c3 { 0%,42%{opacity:0} 47%,78%{opacity:1} 82%,100%{opacity:0} }
@keyframes mc-c4 { 0%,80%{opacity:0} 85%,96%{opacity:1} 100%,100%{opacity:0} }

/* ==================== 电动牙刷无线充电动画（tb-fluid） ==================== */
.tb-fluid {
  position:relative; width:100%; aspect-ratio:1/1;
  max-width:480px; margin:0 auto; border-radius:16px;
  overflow:hidden; background:linear-gradient(170deg,#e8f0fe 0%,#d4e2f7 40%,#c5d6ef 100%);
  box-shadow:0 8px 32px rgba(56,189,248,.15), inset 0 1px 0 rgba(255,255,255,.6);
}
.tb-product-img {
  position:absolute; left:50%; top:50%;
  transform:translate(-50%,-50%);
  width:78%; height:auto; z-index:2;
  filter:drop-shadow(0 12px 24px rgba(0,0,0,.18));
  animation:tb-float 5s ease-in-out infinite;
}
@keyframes tb-float{
  0%,100%{transform:translate(-50%,-50%) translateY(0)}
  50%{transform:translate(-50%,-50%) translateY(-6px)}
}

/* 充电底座青蓝光晕脉冲 */
.tb-glow-ring{
  position:absolute; left:50%; bottom:14%;
  transform:translateX(-50%);
  width:42%; aspect-ratio:1; border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.55) 0%,rgba(56,189,248,.2) 45%,transparent 70%);
  animation:tb-glow-pulse 3s ease-in-out infinite;
  z-index:1;
}
.tb-glow-ring-2{ animation-delay:-1.5s; }
@keyframes tb-glow-pulse{
  0%,100%{opacity:.5; transform:translateX(-50%) scale(.92)}
  50%{opacity:1; transform:translateX(-50%) scale(1.08)}
}

/* 浮动粒子 */
.tb-particles{position:absolute;inset:0;z-index:3;pointer-events:none;}
.tb-particles i{
  position:absolute;width:4px;height:4px;border-radius:50%;
  background:rgba(56,189,248,.75); box-shadow:0 0 6px rgba(56,189,248,.9);
  animation:tb-p-rise 4s ease-in infinite;
}
.tb-particles i:nth-child(1){left:38%;bottom:22%;animation-delay:0s;animation-duration:3.8s}
.tb-particles i:nth-child(2){left:58%;bottom:18%;animation-delay:.7s;animation-duration:4.2s}
.tb-particles i:nth-child(3){left:48%;bottom:28%;animation-delay:1.4s;animation-duration:3.5s}
.tb-particles i:nth-child(4){left:65%;bottom:25%;animation-delay:2.1s;animation-duration:4.5s}
.tb-particles i:nth-child(5){left:32%;bottom:20%;animation-delay:2.8s;animation-duration:3.9s}
.tb-particles i:nth-child(6){left:52%;bottom:15%;animation-delay:3.5s;animation-duration:4.1s}
@keyframes tb-p-rise{
  0%{opacity:0;transform:translateY(0) scale(.5)}
  15%{opacity:1} 70%{opacity:.6}
  100%{opacity:0;transform:translateY(-120px) scale(0)}
}

/* 能量波纹 */
.tb-wave{position:absolute;left:50%;bottom:10%;transform:translateX(-50%);z-index:1;pointer-events:none}
.tb-wave span{
  position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:44%;aspect-ratio:1;border-radius:50%;
  border:2px solid rgba(56,189,248,.5); opacity:0;
  animation:tb-wv 3.5s ease-out infinite;
}
.tb-wave span:nth-child(2){animation-delay:1.17s}
.tb-wave span:nth-child(3){animation-delay:2.34s}
@keyframes tb-wv{
  0%{transform:translateX(-50%) translateY(0) scale(.3);opacity:0}
  20%{opacity:.7} 100%{transform:translateX(-50%) translateY(-60px) scale(2.2);opacity:0}
}

/* 步骤字幕 */
.tb-caps{
  position:absolute;bottom:5%;left:0;right:0;text-align:center;
  z-index:4;pointer-events:none;
}
.tb-caps .tb{
  display:block;font-size:clamp(12px, 1.5vw, 17px);
  font-weight:700;color:#1e3a5f;text-shadow:0 1px 2px rgba(255,255,255,.8);
  opacity:0;position:absolute;left:50%;transform:translateX(-50%);width:max-content;max-width:90%;
}
.tb-caps .c1{animation:tb-c1 16s linear infinite}
.tb-caps .c2{animation:tb-c2 16s linear infinite}
.tb-caps .c3{animation:tb-c3 16s linear infinite}
.tb-caps .c4{animation:tb-c4 16s linear infinite}
@keyframes tb-c1{0%,4%{opacity:0}6%,22%{opacity:1}26%,100%{opacity:0}}
@keyframes tb-c2{0%,26%{opacity:0}28%,46%{opacity:1}50%,100%{opacity:0}}
@keyframes tb-c3{0%,52%{opacity:0}54%,76%{opacity:1}80%,100%{opacity:0}}
@keyframes tb-c4{0%,82%{opacity:0}86%,96%{opacity:1}100%,100%{opacity:0}}

/* —— 响应式 —— */
@media (max-width: 900px) {
  .spotlight-grid { grid-template-columns: 1fr; }
  .spotlight-media { order: -1; }
  .rvc-fluid { max-width: 100%; }
  .mc-fluid { max-width: 100%; }
  .tb-fluid { max-width: 100%; }
  /* 移动端：智能锁加大确保可见 */
  .rvc-lock { width: 32%; right: 2%; }
  .rvc-lock-label { font-size: 13px; bottom: -28px; padding: 3px 10px; }
}
@media (max-width: 560px) {
  .rvc-adv { grid-template-columns: 1fr; }
  .rvc-adv div { display: flex; align-items: baseline; justify-content: center; gap: 8px; text-align: left; }
  .rvc-adv b { margin-bottom: 0; }
  /* 小屏：智能锁进一步放大 */
  .rvc-lock { width: 38%; right: 0; }
  .rvc-lock-label { font-size: 12px; bottom: -24px; padding: 2px 8px; }
}

/* 无障碍：用户开启「减弱动效」时静止呈现 */
@media (prefers-reduced-motion: reduce) {
  /* RVC 流体动画静止 */
  .rvc-phone, .rvc-toggle-w, .rvc-toggle-w i, .rvc-toggle-label,
  .rvc-phone-glow, .rvc-phone-wave span, .rvc-flow, .rvc-flow span,
  .rvc-arc, .rvc-arc path,
  .rvc-lock, .rvc-lock-num,
  .rvc-lock-pct-ring circle, .rvc-lock-done, .rvc-caps .rc { animation: none !important; }
  /* MC 按摩椅动画静止 */
  .mc-glow-ring, .mc-particles i, .mc-wave span, .mc-caps .mc { animation: none !important; }
  .mc-glow-ring { opacity: .6; transform: scale(1); }
  .mc-caps .c3 { opacity: 1; }
  /* TB 电动牙刷动画静止 */
  .tb-product-img, .tb-glow-ring, .tb-particles i, .tb-wave span, .tb-caps .tb { animation: none !important; }
  .tb-glow-ring { opacity: .6; transform: translateX(-50%) scale(1); }
  .tb-caps .c3 { opacity: 1; }
  /* 静态呈现「充电中」状态 */
  .rvc-phone { transform: translateY(-50%) translateX(34%) rotate(-3deg); }
  .rvc-toggle-w { background: #22c55e; box-shadow: 0 0 10px rgba(34,197,94,.45); }
  .rvc-toggle-w i { transform: translateX(58%); background: #fff; }
  .rvc-toggle-label { color: #6EE7B7; }
  .rvc-phone-glow, .rvc-flow, .rvc-arc { opacity: 1; }
  .rvc-lock-body { opacity: 1; transform: none; }
  .rvc-lock-leds { opacity: 1; filter: blur(0); transform: scale(1.12); }
  .rvc-lock-num { opacity: 1; }
  .rvc-lock-pct-ring circle { stroke-dashoffset: 36; stroke: #00D4FF; }
  .rvc-caps .c3 { opacity: 1; }

}
@media (max-width: 760px) {
  .demo-stage { padding: 20px 0; }
  .demo-stage::before { width: 260px; height: 420px; }
}