/* ============================================================
   产品详情页 · 统一样式 V2
   设计概念：产品解剖报告（编辑排版 + 仪器刻度感）
   所有产品共用本文件，只换数据不改版式
   配色：品牌绿（主） + 科技蓝（技术/数据） + 中性白灰
   ============================================================ */

/* 用于跑马灯描边（不支持的浏览器降级为静态渐变描边） */
@property --ang { syntax: '<angle>'; initial-value: 0deg; inherits: false; }

/* ============================================================
   产品特征变体（按产品特点切换，仅在绿–蓝色域内偏移）
   a1 = 主强调（数字、主渐变起端）  a2 = 次强调（单位、编号、渐变末端）
   instrument 监测·观系列 | scale 量表测评 | nature 自然疗愈
   dialog 辅导对话 | radar 认知训练
   ============================================================ */
:root { --pd-a1: #30AE24; --pd-a2: #0066B4; }
:root[data-variant="scale"]  { --pd-a1: #0066B4; --pd-a2: #30AE24; }
:root[data-variant="nature"] { --pd-a1: #1F8630; --pd-a2: #5FA843; }
:root[data-variant="dialog"] { --pd-a1: #1B80CA; --pd-a2: #30AE24; }
:root[data-variant="radar"]  { --pd-a1: #1F8630; --pd-a2: #1B80CA; }

/* Hero 底色随产品气质轻微偏移 */
:root[data-variant="scale"]  .pd-hero { background: linear-gradient(180deg, #FFFFFF 0%, #F5F8FA 100%); }
:root[data-variant="nature"] .pd-hero { background: linear-gradient(180deg, #FFFFFF 0%, #F4F8F4 100%); }
:root[data-variant="dialog"] .pd-hero { background: linear-gradient(180deg, #FFFFFF 0%, #F4F7FA 100%); }

/* 形态差异：自然类更圆润，训练类更硬朗（不改布局，只调圆角与图标形状） */
:root[data-variant="nature"] .pd-card,
:root[data-variant="nature"] .pd-scene-card { border-radius: 24px; }
:root[data-variant="nature"] .pd-card__ico { border-radius: 50%; }
:root[data-variant="nature"] .pd-scene-card__ico { border-radius: 42% 58% 52% 48% / 52% 44% 56% 48%; }
:root[data-variant="nature"] .pd-value { border-radius: 22px; }
:root[data-variant="radar"] .pd-card,
:root[data-variant="radar"] .pd-scene-card { border-radius: 10px; }
:root[data-variant="radar"] .pd-card__ico { border-radius: 8px; }

/* 标题高亮条随变体 */
:root[data-variant="nature"] .pd-hero__title::after { background: rgba(62, 155, 54, .3); }
:root[data-variant="scale"] .pd-hero__title::after,
:root[data-variant="dialog"] .pd-hero__title::after { background: rgba(14, 127, 192, .22); }

/* ---------- 面包屑 ---------- */
.pd-crumb {
  padding-top: calc(var(--header-h) + clamp(18px, 3vw, 30px));
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  font-size: var(--fs-xs); color: var(--c-mute);
}
.pd-crumb a { color: var(--c-slate); transition: color var(--t-fast); }
.pd-crumb a:hover { color: var(--c-brand-600); }
.pd-crumb__sep { opacity: .5; }
.pd-crumb__now { color: var(--c-ink); font-weight: 600; }

/* ============================================================
   Hero · 刊物式头图
   ============================================================ */
.pd-hero {
  position: relative; overflow: hidden;
  padding-top: clamp(26px, 3.5vw, 44px);
  padding-bottom: clamp(40px, 5.5vw, 76px);
  background: linear-gradient(180deg, #FFFFFF 0%, #F6F8F7 100%);
}
/* 细网格底纹 */
.pd-hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(11, 42, 24, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 42, 24, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(88% 78% at 42% 38%, #000 30%, transparent 82%);
}
/* 底部刻度尺（仪器感装饰） */
.pd-hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 16px; z-index: 0;
  pointer-events: none;
  background: repeating-linear-gradient(90deg, rgba(11, 42, 24, .16) 0 1px, transparent 1px 14px);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  opacity: .5;
}
.pd-hero__inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(24px, 4vw, 60px); align-items: center;
}

/* 左：文案 */
.pd-hero__copy { max-width: 640px; }
.pd-hero__no {
  display: flex; width: fit-content; align-items: center; gap: 8px;
  font-family: var(--font-latin); font-size: var(--fs-xs); letter-spacing: .22em;
  color: var(--pd-a2); font-weight: 600; margin-bottom: 10px;
}
.pd-hero__no::before { content: ""; width: 26px; height: 1px; background: var(--pd-a2); }
.pd-hero__title {
  margin-top: 14px;
  font-size: clamp(2.6rem, 5.6vw, 4.1rem); line-height: 1.02; font-weight: 800;
  letter-spacing: .04em; color: var(--c-brand-900);
  position: relative; display: block; width: fit-content;
}
.pd-hero__title::after {
  content: ""; position: absolute; left: 2px; right: 2px; bottom: -6px; height: 8px;
  background: rgba(48, 174, 36, .26);
  border-radius: var(--r-pill); z-index: -1;
}
.pd-tagline {
  margin-top: var(--s-5);
  font-size: clamp(1.02rem, 1.45vw, 1.28rem);
  line-height: 1.62; color: var(--c-slate); font-weight: 500;
  padding-left: 14px; border-left: 2px solid var(--c-brand-200);
}
.pd-slogan {
  margin-top: var(--s-4); display: inline-flex; align-items: center; gap: 8px;
  font-size: var(--fs-sm); color: var(--c-brand-700); font-weight: 600; letter-spacing: .02em;
}
.pd-slogan::before { content: ""; width: 18px; height: 1px; background: var(--c-brand-400); }
.pd-chips { margin-top: var(--s-6); display: flex; flex-wrap: wrap; gap: 8px; }
.pd-hero__actions { margin-top: var(--s-7); display: flex; flex-wrap: wrap; gap: var(--s-3); }
.pd-note {
  margin-top: var(--s-5); display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: var(--r-pill);
  background: rgba(0, 96, 180, .07); border: 1px solid rgba(0, 96, 180, .16);
  font-size: var(--fs-xs); color: var(--c-tech-700);
}
.pd-note svg { width: 15px; height: 15px; flex: none; }

/* 右：产品图 + 仪器环 */
.pd-hero__visual { position: relative; display: grid; place-items: center; min-height: 340px; }
.pd-hero__stage { position: relative; z-index: 2; width: 100%; display: grid; place-items: center; }
/* 产品特征装饰 */
.pd-dial { position: absolute; z-index: 0; width: 108%; max-width: 560px; height: auto; }
.pd-dial[hidden] { display: none; }
.pd-dial svg { display: block; width: 100%; height: auto; }
.pd-hero__glow {
  position: absolute; z-index: 0; width: 74%; aspect-ratio: 1; border-radius: 50%;
  background:
    radial-gradient(circle at 50% 46%, rgba(48, 174, 36, .15), transparent 62%);
  filter: blur(3px);
}
.pd-hero__img {
  position: relative; z-index: 2; width: 100%; max-width: 430px; height: auto; object-fit: contain;
  filter: drop-shadow(0 28px 44px rgba(11, 42, 24, .17));
}
.pd-hero__ph {
  position: relative; z-index: 2; width: 76%; aspect-ratio: 1; display: grid; place-items: center; gap: 10px;
  border: 1px dashed var(--c-line); border-radius: var(--r-xl);
  background: rgba(255, 255, 255, .66); color: var(--c-mute);
}
.pd-hero__ph svg { width: 38px; height: 38px; opacity: .5; }
.pd-hero__ph p { font-size: var(--fs-xs); }

/* 扫描线 */
.pd-hero__scan {
  position: absolute; z-index: 3; left: 8%; right: 8%; top: 12%; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, transparent, rgba(48, 174, 36, .5), transparent);
  pointer-events: none; opacity: 0;
}
/* 浮动参数标签 */
.pd-hero__tags { position: absolute; inset: 0; z-index: 4; pointer-events: none; }
.pd-hero__tag {
  position: absolute; display: flex; flex-direction: column; gap: 2px;
  padding: 10px 14px; border-radius: var(--r-md);
  background: rgba(255, 255, 255, .92); border: 1px solid var(--c-line);
  box-shadow: var(--sh-md); backdrop-filter: blur(6px);
}
.pd-hero__tag b { font-family: var(--font-latin); font-size: 1.24rem; color: var(--pd-a1); line-height: 1; }
.pd-hero__tag b i { font-style: normal; font-size: .62em; color: var(--c-mute); margin-left: 2px; }
.pd-hero__tag span { font-size: var(--fs-micro); color: var(--c-mute); letter-spacing: .04em; }
.pd-hero__tag--a { left: 0; top: 14%; }
.pd-hero__tag--b { right: 0; bottom: 16%; }

/* ---------- 关键指标条 ---------- */
.pd-metrics {
  position: relative; z-index: 2; margin-top: clamp(26px, 3.6vw, 46px);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  background: var(--c-paper); border: 1px solid var(--c-line);
  border-radius: var(--r-lg); box-shadow: var(--sh-sm, 0 2px 10px rgba(11, 42, 24, .05));
  overflow: hidden;
}
.pd-metric { padding: clamp(16px, 2vw, 22px) var(--s-4); border-left: 1px solid var(--c-line-2); }
.pd-metric:first-child { border-left: 0; }
.pd-metric b {
  display: block; font-family: var(--font-latin); font-weight: 700;
  font-size: clamp(1.4rem, 2.2vw, 1.85rem); line-height: 1; color: var(--pd-a1);
}
.pd-metric b i { font-style: normal; font-size: .52em; color: var(--c-mute); margin-left: 3px; letter-spacing: .04em; }
.pd-metric span { display: block; margin-top: 7px; font-size: var(--fs-xs); color: var(--c-mute); letter-spacing: .04em; }

/* ---------- 引语块（有 slogan 时显示）· 浅色版 ---------- */
.pd-quote {
  position: relative; overflow: hidden;
  background:
    radial-gradient(760px 340px at 8% 0%, rgba(48, 174, 36, .12), transparent 68%),
    radial-gradient(680px 320px at 96% 110%, rgba(0, 102, 180, .10), transparent 70%),
    linear-gradient(150deg, var(--c-haze), var(--c-wash) 120%);
  color: var(--c-ink);
  border-block: 1px solid rgba(48, 174, 36, .14);
  padding-block: clamp(38px, 5vw, 66px);
}
.pd-quote::before {
  content: ""; position: absolute; left: -6%; top: -50%; width: 460px; height: 460px;
  background: radial-gradient(circle, rgba(48, 174, 36, .16), transparent 66%);
}
.pd-quote::after {
  content: ""; position: absolute; right: 0; top: 0; bottom: 0; width: 1px;
  background: linear-gradient(180deg, transparent, rgba(0, 102, 180, .3), transparent);
}
.pd-quote__inner { position: relative; z-index: 1; max-width: 900px; }
.pd-quote__mark {
  font-family: var(--font-latin); font-size: 3.4rem; line-height: 1;
  color: rgba(48, 174, 36, .26);
}
.pd-quote__t {
  margin-top: 6px; font-size: clamp(1.32rem, 2.6vw, 2.05rem); font-weight: 700;
  line-height: 1.5; letter-spacing: .02em; color: var(--c-ink);
}
.pd-quote__d { margin-top: 14px; font-size: var(--fs-sm); color: var(--c-slate); line-height: 1.75; }

/* ============================================================
   通用区块
   ============================================================ */
.pd-sec { position: relative; }
.pd-sec-head { position: relative; max-width: 700px; margin-bottom: clamp(26px, 3.6vw, 44px); }
.pd-sec-head h2 { margin-top: var(--s-3); }
.pd-sec-head p { margin-top: var(--s-3); }
.pd-sec__no {
  display: block; margin-bottom: 12px;
  font-family: var(--font-latin); font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px var(--c-brand-300);
  opacity: .7; letter-spacing: .02em; user-select: none;
}

/* ---------- 01 产品优势 ---------- */
.pd-cards { display: grid; gap: var(--s-5); }
.pd-cards--3 { grid-template-columns: repeat(3, 1fr); }
.pd-cards--4 { grid-template-columns: repeat(4, 1fr); }
.pd-card {
  position: relative; isolation: isolate; overflow: hidden;
  display: flex; flex-direction: column; gap: var(--s-4);
  padding: var(--s-7) var(--s-6); background: var(--c-paper);
  border: 1px solid var(--c-line); border-radius: var(--r-lg);
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out);
}
.pd-card > * { position: relative; z-index: 1; }
/* 跑马灯描边 */
.pd-card::before {
  content: ""; position: absolute; inset: 0; z-index: 0; border-radius: inherit; padding: 1px;
  background: var(--pd-a1);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0; transition: opacity .35s var(--e-out); pointer-events: none;
}
.pd-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }
.pd-card:hover::before { opacity: .55; }
/* 鼠标跟随高光 */
.pd-card::after {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 0%),
    rgba(48, 174, 36, .12), rgba(0, 96, 180, .05) 46%, transparent 72%);
  opacity: 0; transition: opacity .35s var(--e-out);
}
.pd-card:hover::after { opacity: 1; }
.pd-card__top { display: flex; align-items: center; justify-content: space-between; }
.pd-card__ico {
  width: 46px; height: 46px; border-radius: var(--r-md); flex: none;
  display: grid; place-items: center; background: var(--c-brand-050); color: var(--c-brand-600);
  transition: background-color var(--t-base) var(--e-out), color var(--t-base), transform var(--t-base) var(--e-out);
}
.pd-card__ico svg { width: 22px; height: 22px; }
.pd-card:hover .pd-card__ico {
  background: var(--pd-a1); color: #fff;
  transform: rotate(-6deg) scale(1.05);
}
.pd-card__idx { font-family: var(--font-latin); font-size: var(--fs-xs); color: var(--pd-a2); letter-spacing: .1em; }
.pd-card__t { font-size: 1.06rem; font-weight: 700; color: var(--c-ink); line-height: 1.5; }
.pd-card__d { font-size: var(--fs-sm); color: var(--c-slate); line-height: 1.75; }

/* ---------- 02 应用价值 ---------- */
.pd-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }
.pd-value {
  position: relative; padding: var(--s-6) var(--s-6) var(--s-6) calc(var(--s-6) + 8px);
  background: var(--c-paper); border: 1px solid var(--c-line); border-radius: var(--r-lg);
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out);
}
.pd-value::before {
  content: ""; position: absolute; left: 0; top: 14px; bottom: 14px; width: 3px; border-radius: var(--r-pill);
  background: var(--pd-a1);
  transform: scaleY(.16); transform-origin: top;
  transition: transform .8s var(--e-out) var(--rd, 0ms);
}
.pd-value.is-in::before, .pd-value:hover::before { transform: scaleY(1); }
.pd-value:hover { transform: translateY(-4px); box-shadow: var(--sh-md); }
.pd-value__t { font-size: 1rem; font-weight: 700; color: var(--c-ink); }
.pd-value__d { margin-top: 6px; font-size: var(--fs-sm); color: var(--c-slate); line-height: 1.72; }

/* 六维能力结构图（记忆 / 注意力专项） */
.pd-radar { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: clamp(28px, 4vw, 56px); align-items: center; }
.pd-radar__viz { position: relative; display: block; }
.pd-radar__viz::before {
  content: ""; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: min(84%, 400px); aspect-ratio: 1; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(48, 174, 36, .09), transparent 70%);
}
.pd-radar__viz svg { position: relative; display: block; margin-inline: auto; width: 100%; max-width: 460px; height: auto; overflow: visible; }
.pd-radar__grid { fill: none; stroke: rgba(11, 42, 24, .12); stroke-width: 1; }
.pd-radar__axis { stroke: rgba(11, 42, 24, .1); stroke-width: 1; }
.pd-radar__area {
  fill: rgba(48, 174, 36, .16); stroke: var(--pd-a1); stroke-width: 2; stroke-linejoin: round;
  transform-origin: 50% 50%; transform: scale(.2); opacity: 0;
  transition: transform 1s var(--e-out), opacity .8s var(--e-out);
}
.pd-radar.is-in .pd-radar__area { transform: scale(1); opacity: 1; }
.pd-radar__pt { fill: #fff; stroke: var(--c-brand-600); stroke-width: 2; transition: r .3s var(--e-out), fill .3s; }
.pd-radar__pt.is-hot { r: 8; fill: var(--c-tech-600); stroke: var(--c-tech-700); }
.pd-radar__lbl { font-size: 12px; fill: var(--c-slate); font-family: var(--font-sans); }
.pd-radar__lbl.is-hot { fill: var(--c-brand-700); font-weight: 700; }
.pd-radar__list { display: grid; gap: 2px; }
.pd-radar__item {
  display: flex; gap: var(--s-4); align-items: flex-start; width: 100%; text-align: left;
  padding: 12px var(--s-4); border-radius: var(--r-md); border-left: 2px solid transparent;
  transition: background-color var(--t-base) var(--e-out), border-color var(--t-base) var(--e-out);
}
.pd-radar__item:hover, .pd-radar__item.is-hot { background: var(--c-brand-050); border-left-color: var(--c-brand-400); }
.pd-radar__item i {
  flex: none; width: 22px; height: 22px; margin-top: 2px; border-radius: 50%;
  display: grid; place-items: center; font-style: normal;
  font-family: var(--font-latin); font-size: var(--fs-micro); font-weight: 700;
  background: var(--c-brand-050); color: var(--c-brand-600);
}
.pd-radar__item:hover i, .pd-radar__item.is-hot i { background: var(--pd-a1); color: #fff; }
.pd-radar__t { display: block; font-size: var(--fs-sm); font-weight: 700; color: var(--c-ink); }
.pd-radar__d { display: block; margin-top: 3px; font-size: var(--fs-xs); color: var(--c-slate); line-height: 1.7; }
.pd-radar__hint { margin-top: var(--s-5); font-size: var(--fs-xs); color: var(--c-mute); }

/* ---------- 03 适配场景 ---------- */
.pd-scenes { display: flex; flex-wrap: wrap; gap: var(--s-3); }
.pd-scene {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--r-pill);
  background: var(--c-paper); border: 1px solid var(--c-line);
  font-size: var(--fs-sm); color: var(--c-ink-2); font-weight: 500;
  transition: border-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
}
.pd-scene svg { width: 16px; height: 16px; color: var(--c-brand-600); flex: none; }
.pd-scene:hover { border-color: var(--c-brand-300); color: var(--c-brand-700); transform: translateY(-2px); }

.pd-scene-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-5); }
.pd-scene-cards--4 { grid-template-columns: repeat(4, 1fr); }
.pd-scene-card {
  position: relative; overflow: hidden; isolation: isolate;
  padding: var(--s-6); background: var(--c-paper); border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out);
}
.pd-scene-card > * { position: relative; z-index: 1; }
.pd-scene-card::after {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 0%), rgba(48, 174, 36, .12), transparent 72%);
  opacity: 0; transition: opacity .35s var(--e-out);
}
.pd-scene-card:hover { transform: translateY(-5px); box-shadow: var(--sh-md); border-color: var(--c-brand-100); }
.pd-scene-card:hover::after { opacity: 1; }
.pd-scene-card__ico {
  width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid var(--c-brand-200); color: var(--pd-a1);
  background: var(--c-brand-050);
  transition: transform var(--t-base) var(--e-out), color var(--t-base), border-color var(--t-base);
}
.pd-scene-card__ico svg { width: 24px; height: 24px; }
.pd-scene-card:hover .pd-scene-card__ico { transform: rotate(-8deg) scale(1.06); color: var(--c-tech-600); border-color: var(--c-tech-300); }
.pd-scene-card__idx { font-family: var(--font-latin); font-size: var(--fs-micro); color: var(--pd-a2); letter-spacing: .16em; margin-top: var(--s-4); display: block; }
.pd-scene-card__t { font-size: 1rem; font-weight: 700; color: var(--c-ink); margin-top: 4px; }
.pd-scene-card__d { margin-top: 6px; font-size: var(--fs-sm); color: var(--c-slate); line-height: 1.7; }

/* ---------- 04 主要功能 ---------- */
.pd-funcs { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--s-5) var(--s-8); }
.pd-func { position: relative; display: flex; gap: var(--s-4); align-items: flex-start; padding-bottom: var(--s-5); border-bottom: 1px solid var(--c-line-2); }
.pd-func__n {
  flex: none; font-family: var(--font-latin); font-size: 1.5rem; font-weight: 800; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px var(--pd-a2); min-width: 40px;
  transition: color var(--t-base) var(--e-out), -webkit-text-stroke-color var(--t-base);
}
.pd-func:hover .pd-func__n { color: var(--c-brand-050); -webkit-text-stroke-color: var(--pd-a1); }
.pd-func__t { display: block; font-size: 1rem; font-weight: 700; color: var(--c-ink); }
.pd-func__d { display: block; margin-top: 4px; font-size: var(--fs-sm); color: var(--c-slate); line-height: 1.7; }
.pd-func::after {
  content: ""; position: absolute; left: 0; bottom: -1px; height: 1px; width: 100%;
  background: var(--pd-a1);
  transform: scaleX(0); transform-origin: left;
  transition: transform .55s var(--e-out);
}
.pd-func:hover::after { transform: scaleX(1); }

/* ---------- 05 应用流程（中轴交错时间轴） ---------- */
.pd-timeline { position: relative; max-width: 760px; margin-inline: auto; padding-block: 6px; counter-reset: step; }
.pd-timeline::before {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%); top: 12px; bottom: 12px; width: 2px;
  background: var(--c-line); border-radius: var(--r-pill);
}
.pd-timeline__bar {
  position: absolute; left: 50%; transform: translateX(-50%); top: 12px; width: 2px; height: 0;
  background: var(--pd-a1);
  border-radius: var(--r-pill);
  transition: height .9s cubic-bezier(.22,.68,.32,1);
}
.pd-tl {
  position: relative; width: 50%; padding-right: 48px; padding-bottom: clamp(24px, 3vw, 40px);
  text-align: right;
}
.pd-tl:nth-of-type(even) {
  margin-left: 50%; padding-right: 0; padding-left: 48px; text-align: left;
}
.pd-tl:last-child { padding-bottom: 0; }
.pd-tl__dot {
  position: absolute; right: -14px; top: 0;
  width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center; z-index: 1;
  background: var(--c-paper); border: 1.5px solid var(--c-brand-300);
  color: var(--c-brand-600); font-family: var(--font-latin); font-size: var(--fs-micro); font-weight: 700;
  transition: all var(--t-base) var(--e-out);
}
.pd-tl:nth-of-type(even) .pd-tl__dot { right: auto; left: -14px; }

/* 左右交替入场 */
.pd-tl[data-rise] { transform: translateX(-26px); }
.pd-tl:nth-of-type(even)[data-rise] { transform: translateX(26px); }
.pd-tl.is-in { transform: none; }
.pd-tl.is-in .pd-tl__dot {
  border-color: var(--pd-a1); color: #fff;
  background: var(--pd-a1);
  box-shadow: 0 0 0 6px rgba(48, 174, 36, .12);
}
.pd-tl { counter-increment: step; }
.pd-tl__body { padding-top: 1px; }
.pd-tl__body::before {
  content: "STEP " counter(step, decimal-leading-zero);
  display: block; margin-bottom: 7px;
  font-family: var(--font-latin); font-size: var(--fs-micro);
  color: var(--c-tech-500); letter-spacing: .18em;
}
.pd-tl__t { display: block; font-size: 1.05rem; font-weight: 700; color: var(--c-ink); }
.pd-tl__d { display: block; margin-top: 4px; font-size: var(--fs-sm); color: var(--c-slate); line-height: 1.7; }

/* ---------- 06 产品切换条 ---------- */
.pd-switcher {
  padding: var(--s-6) 0; border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line);
  display: flex; align-items: center; gap: var(--s-5); flex-wrap: wrap;
}
.pd-switcher__t { font-size: var(--fs-xs); color: var(--c-mute); letter-spacing: .12em; flex: none; }
.pd-switcher__list { display: flex; flex-wrap: wrap; gap: 8px; }
.pd-switcher__item {
  padding: 8px 15px; border-radius: var(--r-pill); font-size: var(--fs-sm);
  border: 1px solid var(--c-line); color: var(--c-slate); background: var(--c-paper);
  transition: all var(--t-fast) var(--e-out);
}
.pd-switcher__item:hover { border-color: var(--c-brand-300); color: var(--c-brand-700); transform: translateY(-2px); }
.pd-switcher__item.is-active {
  background: var(--c-brand-700);
  border-color: var(--c-brand-700); color: #fff; font-weight: 600;
}

/* ---------- 关联产品 ---------- */
.pd-related .pm-card__more { pointer-events: none; }
.pd-related .pm-card { transition: transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out); }
.pd-related .pm-card:hover { transform: translateY(-6px); box-shadow: var(--sh-lg); }
.pd-related .pm-card:hover .pm-card__media img { transform: scale(1.05); }
.pd-related .pm-card__media img { transition: transform .6s var(--e-out); }

/* ---------- 底部转化条 ---------- */
.pd-cta {
  position: relative; overflow: hidden;
  background:
    radial-gradient(820px 420px at 92% 0%, rgba(0, 102, 180, .12), transparent 70%),
    radial-gradient(700px 380px at 4% 100%, rgba(48, 174, 36, .14), transparent 68%),
    linear-gradient(160deg, var(--c-haze), var(--c-sage));
  color: var(--c-ink);
  border-top: 1px solid rgba(48, 174, 36, .14);
}
.pd-cta::before {
  content: ""; position: absolute; right: -8%; top: -40%; width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(48, 174, 36, .18), transparent 65%);
}
.pd-cta::after {
  content: ""; position: absolute; left: -32%; top: 0; bottom: 0; width: 34%; pointer-events: none;
  background: linear-gradient(100deg, transparent, rgba(48, 174, 36, .10), transparent);
  animation: pdSweep 7.5s linear infinite;
}
@keyframes pdSweep { to { transform: translateX(420%); } }
.pd-cta__inner { position: relative; z-index: 2; padding-block: clamp(40px, 6vw, 72px); }
.pd-cta__t { font-size: clamp(1.5rem, 2.4vw, 2.1rem); font-weight: 700; line-height: 1.3; color: var(--c-ink); }
.pd-cta__d { margin-top: 10px; font-size: var(--fs-sm); color: var(--c-slate); max-width: 56ch; line-height: 1.7; }
.pd-cta__grid { margin-top: var(--s-6); display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--s-4); }
.pd-cta__cell {
  display: flex; align-items: center; gap: 10px; padding: 14px 16px;
  border-radius: var(--r-md); background: rgba(255, 255, 255, .78);
  border: 1px solid rgba(48, 174, 36, .16); font-size: var(--fs-sm); color: var(--c-ink-2);
  backdrop-filter: blur(6px);
  transition: background-color var(--t-base) var(--e-out), transform var(--t-base) var(--e-out), box-shadow var(--t-base) var(--e-out);
}
.pd-cta__cell:hover { background: #fff; transform: translateY(-2px); box-shadow: var(--sh-sm); }
.pd-cta__cell svg { width: 18px; height: 18px; flex: none; color: var(--c-brand-600); }
.pd-cta__actions { margin-top: var(--s-6); display: flex; flex-wrap: wrap; gap: var(--s-3); }

/* ============================================================
   右侧章节索引（桌面）
   ============================================================ */
.pd-dots {
  position: fixed; right: 22px; top: 50%; transform: translateY(-50%); z-index: 40;
  display: grid; gap: 14px;
}
.pd-dots__i {
  display: flex; align-items: center; justify-content: flex-end; gap: 10px;
  font-size: var(--fs-micro); color: var(--c-mute); letter-spacing: .06em;
  transition: color var(--t-fast) var(--e-out);
}
.pd-dots__i span {
  opacity: 0; transform: translateX(6px);
  transition: opacity var(--t-base) var(--e-out), transform var(--t-base) var(--e-out);
  white-space: nowrap;
}
.pd-dots__i::after {
  content: ""; width: 8px; height: 8px; border-radius: 50%; flex: none;
  background: var(--c-line); border: 1.5px solid var(--c-paper);
  box-shadow: 0 0 0 1px var(--c-line);
  transition: all var(--t-base) var(--e-out);
}
.pd-dots__i:hover span { opacity: 1; transform: none; }
.pd-dots__i:hover { color: var(--c-slate); }
.pd-dots__i.is-active { color: var(--c-brand-700); }
.pd-dots__i.is-active span { opacity: 1; transform: none; font-weight: 700; }
.pd-dots__i.is-active::after {
  background: var(--pd-a1);
  box-shadow: 0 0 0 3px rgba(48, 174, 36, .16); transform: scale(1.15);
}

/* ============================================================
   动效：入场
   ============================================================ */
.pd-hero__copy > * { animation: pdRise .85s var(--e-out) backwards; }
.pd-hero__copy > *:nth-child(1) { animation-delay: .04s; }
.pd-hero__copy > *:nth-child(2) { animation-delay: .1s; }
.pd-hero__copy > *:nth-child(3) { animation-delay: .16s; }
.pd-hero__copy > *:nth-child(4) { animation-delay: .22s; }
.pd-hero__copy > *:nth-child(5) { animation-delay: .28s; }
.pd-hero__copy > *:nth-child(6) { animation-delay: .34s; }
.pd-hero__copy > *:nth-child(7) { animation-delay: .4s; }
@keyframes pdRise { from { opacity: 0; transform: translate3d(0, 20px, 0); } to { opacity: 1; transform: none; } }

.pd-chips .chip { animation: pdPop .55s var(--e-out) backwards; }
.pd-chips .chip:nth-child(1) { animation-delay: .34s; }
.pd-chips .chip:nth-child(2) { animation-delay: .42s; }
.pd-chips .chip:nth-child(3) { animation-delay: .5s; }
@keyframes pdPop { from { opacity: 0; transform: scale(.9); } to { opacity: 1; transform: none; } }

/* 仪器环：刻度慢转 + 弧线巡游 */
.dial-ticks { transform-origin: 200px 200px; animation: pdSpin 72s linear infinite; }
.dial-arc { transform-origin: 200px 200px; animation: pdSpin 16s linear infinite; }
@keyframes pdSpin { to { transform: rotate(360deg); } }

/* ---- 变体动画 · 量表刻度条（明心） ---- */
.scale-bars rect { animation: pdBarFade 3.4s ease-in-out infinite; }
.scale-bars rect:nth-child(2) { animation-delay: .35s; }
.scale-bars rect:nth-child(3) { animation-delay: .7s; }
.scale-bars rect:nth-child(4) { animation-delay: 1.05s; }
.scale-bars rect:nth-child(5) { animation-delay: 1.4s; }
@keyframes pdBarFade { 0%, 100% { opacity: .3; } 50% { opacity: .9; } }

/* ---- 变体动画 · 年轮生长环（自然疗愈） ---- */
.ring-a { transform-origin: 200px 200px; animation: pdSpin 96s linear infinite; }
.ring-b { transform-origin: 200px 200px; animation: pdSpin 74s linear infinite reverse; }
.ring-c { transform-origin: 200px 200px; animation: pdSpin 58s linear infinite; }
.ring-dots { transform-origin: 200px 200px; animation: pdSpin 130s linear infinite reverse; }
.leaf-pts circle { transform-origin: 200px 200px; animation: pdLeafFloat 6.5s ease-in-out infinite; }
.leaf-pts circle:nth-child(2) { animation-delay: -1.1s; }
.leaf-pts circle:nth-child(3) { animation-delay: -2.2s; }
.leaf-pts circle:nth-child(4) { animation-delay: -3.3s; }
.leaf-pts circle:nth-child(5) { animation-delay: -4.4s; }
.leaf-pts circle:nth-child(6) { animation-delay: -5.5s; }
@keyframes pdLeafFloat { 0%, 100% { opacity: .35; transform: translateY(0); } 50% { opacity: .95; transform: translateY(-7px); } }

/* ---- 变体动画 · 对话波纹（辅导） ---- */
.wave-1 { transform-origin: 200px 200px; animation: pdBreath 7s ease-in-out infinite; }
.wave-2 { transform-origin: 200px 200px; animation: pdBreath 9s ease-in-out infinite .7s; }
.wave-3 { transform-origin: 200px 200px; animation: pdBreath 11s ease-in-out infinite 1.4s; }
.wave-pulse { transform-origin: 200px 200px; animation: pdRipple 4.4s cubic-bezier(.22, .68, .32, 1) infinite; }
.wave-pulse--2 { animation-delay: 2.2s; }
@keyframes pdRipple { 0% { transform: scale(.62); opacity: .6; } 100% { transform: scale(1.62); opacity: 0; } }

/* ---- 扫描线：自然 / 辅导改用更柔和的呼吸光带 ---- */
:root[data-variant="nature"] .pd-hero__scan,
:root[data-variant="dialog"] .pd-hero__scan { animation: pdScanSoft 7s ease-in-out infinite; }
@keyframes pdScanSoft {
  0% { transform: translateY(26px); opacity: 0; }
  30% { opacity: .5; }
  70% { opacity: .5; }
  100% { transform: translateY(220px); opacity: 0; }
}
:root[data-variant="nature"] .pd-hero__scan { background: linear-gradient(90deg, transparent, rgba(62, 155, 54, .45), transparent); }
:root[data-variant="dialog"] .pd-hero__scan { background: linear-gradient(90deg, transparent, rgba(14, 127, 192, .38), transparent); }
.pd-hero__glow { animation: pdBreath 9s ease-in-out infinite; }
@keyframes pdBreath { 0%, 100% { transform: scale(1); opacity: .92; } 50% { transform: scale(1.07); opacity: 1; } }

/* 扫描线 */
.pd-hero__scan { animation: pdScan 4.6s cubic-bezier(.5, 0, .5, 1) infinite; }
@keyframes pdScan {
  0% { transform: translateY(0); opacity: 0; }
  12% { opacity: .9; }
  88% { opacity: .9; }
  100% { transform: translateY(240px); opacity: 0; }
}

/* 浮动微点 */
.pd-hero__dots { position: absolute; inset: 0; z-index: 1; pointer-events: none; overflow: hidden; }
.pd-hero__dots i {
  position: absolute; width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-brand-400); opacity: .35; animation: pdFloat 11s ease-in-out infinite;
}
.pd-hero__dots i:nth-child(2) { background: var(--c-tech-500); opacity: .3; animation-duration: 14s; animation-delay: -3s; }
.pd-hero__dots i:nth-child(3) { background: var(--c-brand-500); opacity: .28; animation-duration: 9s; animation-delay: -6s; }
@keyframes pdFloat {
  0%, 100% { transform: translate3d(0, 0, 0); }
  33% { transform: translate3d(14px, -22px, 0); }
  66% { transform: translate3d(-10px, 12px, 0); }
}

/* 产品图入场 + 视差 */
.pd-hero__visual { animation: pdFadeUp 1.05s var(--e-out) .1s backwards; }
@keyframes pdFadeUp { from { opacity: 0; transform: translate3d(0, 26px, 0) scale(.97); } to { opacity: 1; transform: none; } }
.pd-hero__img, .pd-hero__ph {
  transform: translate3d(calc(var(--px, 0) * 1px), calc(var(--py, 0) * 1px), 0);
  transition: transform .45s var(--e-out); will-change: transform;
}

/* 子项错落入场（JS 打 data-rise） */
[data-rise] {
  opacity: 0; transform: translateY(20px);
  transition: opacity .7s var(--e-out), transform .7s var(--e-out);
  transition-delay: var(--rd, 0ms);
}
[data-rise].is-in { opacity: 1; transform: none; }

/* ============================================================
   降级：减少动效
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .pd-hero::before, .pd-hero__scan, .pd-hero__glow, .pd-hero__dots i,
  .dial-ticks, .dial-arc, .pd-cta::after, .pd-card:hover::before,
  .scale-bars rect, .ring-a, .ring-b, .ring-c, .ring-dots,
  .leaf-pts circle, .wave-1, .wave-2, .wave-3, .wave-pulse { animation: none !important; }
  .pd-hero__copy > *, .pd-chips .chip, .pd-hero__visual { animation: none !important; }
  [data-rise] { opacity: 1 !important; transform: none !important; }
  .pd-hero__img, .pd-hero__ph { transform: none !important; }
  .pd-value::before { transform: scaleY(1) !important; }
  .pd-radar__area { transform: scale(1) !important; opacity: 1 !important; }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1240px) { .pd-dots { display: none; } }
@media (max-width: 1024px) {
  .pd-hero__inner { grid-template-columns: 1fr; }
  .pd-hero__visual { order: -1; min-height: 280px; }
  .pd-hero__img { max-width: 340px; }
  .pd-hero__tag { display: none; }
  .pd-cards--4 { grid-template-columns: repeat(2, 1fr); }
  .pd-values { grid-template-columns: repeat(2, 1fr); }
  .pd-scene-cards, .pd-scene-cards--4 { grid-template-columns: repeat(2, 1fr); }
  .pd-radar { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .pd-cards--3, .pd-cards--4 { grid-template-columns: 1fr; }
  .pd-values { grid-template-columns: 1fr; }
  .pd-funcs { grid-template-columns: 1fr; gap: var(--s-4); }
  .pd-scene-cards, .pd-scene-cards--4 { grid-template-columns: 1fr; }
  .pd-metrics { grid-template-columns: repeat(2, 1fr); }
  .pd-metric:nth-child(odd) { border-left: 0; }
  .pd-metric:nth-child(n+3) { border-top: 1px solid var(--c-line-2); }
  .pd-sec__no { font-size: 26px; }
  .pd-switcher { flex-direction: column; align-items: flex-start; }
  /* 时间轴回退单列 */
  .pd-timeline { max-width: none; padding-left: 44px; padding-block: 0; }
  .pd-timeline::before, .pd-timeline__bar { left: 14px; transform: none; }
  .pd-tl, .pd-tl:nth-of-type(even) {
    width: 100%; margin-left: 0; padding: 0 0 22px 0; text-align: left;
  }
  .pd-tl__dot, .pd-tl:nth-of-type(even) .pd-tl__dot { left: -44px; right: auto; }
  .pd-tl[data-rise], .pd-tl:nth-of-type(even)[data-rise] { transform: translateY(20px); }
  .pd-tl[data-rise].is-in, .pd-tl:nth-of-type(even)[data-rise].is-in { transform: none; }
  .pd-tl:last-child { padding-bottom: 0; }
}