/* ==========================================================================
   Generation Lab 中文复刻版 — 设计系统与组件样式
   完全本地化：不加载任何远程字体 / CDN / 图片，所有资源位于 assets/
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  /* 棕色系（深色背景） */
  --ink:        #241505;   /* 最深棕黑：页脚 / 菜单 / 主背景 */
  --brown-900:  #2b1a0a;
  --brown-800:  #3a2417;   /* 产品卡 */
  --brown-700:  #4a3220;
  --brown-600:  #6b4f35;   /* 步骤 / 轮播区背景 */

  /* 米色系（浅色背景） */
  --cream-50:   #f7f3ea;
  --cream-100:  #f0ebe1;
  --cream-200:  #e5ded3;
  --cream-300:  #dcd5c9;

  /* 强调色 */
  --accent:     #d93e1a;   /* 朱橙 CTA */
  --accent-dk:  #b93212;
  --blue:       #3a4bd8;   /* 箭头蓝 */
  --olive:      #5a6b47;   /* 橄榄绿 */

  /* 文字 */
  --txt-on-dark:  #f5f0e8;
  --txt-on-light: #55504a;
  --muted-light:  #8a8177;
  --muted-dark:   #b7a894;

  /* 圆角 */
  --r-img:  28px;
  --r-card: 22px;
  --r-pill: 999px;

  /* 字体（本地品牌字体 elzaFont 优先，中文回退系统栈，无远程请求） */
  --font: "elzaFont", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
          "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  /* 等宽栈：仅用于 CpG 位点编号 / 基因符号等技术数据 */
  --mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, "Liberation Mono", monospace;

  /* hero 视频素材经无头渲染实测为正立编码（与 hero-poster 一致），无需旋转；
     若换用倒置编码素材再改为 180deg */
  --hero-flip: 0deg;

  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--ink);
  color: var(--txt-on-dark);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }

/* ---------- 布局工具 ---------- */
.container { width: min(1200px, 92vw); margin-inline: auto; }
.section { padding: clamp(64px, 9vw, 120px) 0; }
.eyebrow {
  font-size: 14px; letter-spacing: .04em; color: var(--muted-dark);
  margin-bottom: 18px; display: block;
}
.on-light .eyebrow { color: var(--muted-light); }

h1, h2, h3 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.08; }
/* 展示型字阶：原站真值取自其 CSS 令牌（均为 font-weight:400）
   nk-heading-1 60px/ls-1.2px/lh1.02｜nk-heading-2 44px｜nk-heading-3 30px｜nk-heading-4 24px
   中文同字号比拉丁文视觉更重（字形填满 em 框，无 x-height 缓冲），故各档下调约 20%；
   行高也不能沿用 1.02，否则中文上下行会互相切边 */
.h-xl { font-size: clamp(28px, 4.2vw, 48px); font-weight: 400; line-height: 1.16; letter-spacing: -.5px; }
.h-lg { font-size: clamp(24px, 3vw, 36px); font-weight: 400; line-height: 1.22; letter-spacing: -.3px; }
.h-md { font-size: clamp(20px, 2.4vw, 28px); font-weight: 400; line-height: 1.28; letter-spacing: -.1px; }
.lead { font-size: clamp(15px, 1.6vw, 18px); line-height: 1.65; }

.on-dark  { background: var(--ink); color: var(--txt-on-dark); }
.on-brown { background: var(--brown-600); color: var(--txt-on-dark); }
.on-light { background: var(--cream-100); color: var(--txt-on-light); }
.on-light h1, .on-light h2, .on-light h3 { color: #6b6259; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  border-radius: var(--r-pill); font-weight: 600; font-size: 16px;
  padding: 18px 32px; transition: transform .3s var(--ease), background .3s, color .3s;
  white-space: nowrap;
}
.btn .arr { transition: transform .3s var(--ease); }
.btn:hover .arr { transform: translateX(5px); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dk); }
.btn-block { width: 100%; }
.btn-cream { background: var(--cream-300); color: #241505; }
.btn-cream .arr { color: var(--blue); }
.btn-cream:hover { background: #cfc7b9; }
.btn-outline-dark {
  background: rgba(255,255,255,.06); color: var(--txt-on-dark);
  border: 1px solid rgba(245,240,232,.25);
}
.btn-sm { padding: 13px 26px; font-size: 15px; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px clamp(16px, 4vw, 40px);
  transition: background .35s, backdrop-filter .35s;
}
.nav.scrolled { background: rgba(36,21,5,.82); backdrop-filter: blur(14px); }
.nav.nav-light.scrolled { background: rgba(240,235,225,.86); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; line-height: 1.05; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; font-size: 17px;
  border: 1.5px solid currentColor;
}
.brand .word { font-size: 17px; letter-spacing: -.01em; }
.brand .word sup { font-size: 9px; }
.nav-links { display: flex; gap: 28px; align-items: center; font-size: 15px; }
.nav-links a { opacity: .85; transition: opacity .2s; }
.nav-links a:hover { opacity: 1; }
.nav-cta { display: flex; gap: 12px; align-items: center; }
/* 导航栏常驻登录入口：原站此处即有描边 Sign In 按钮，窄屏收进全屏菜单
   颜色跟随导航文字色（深色主视觉为反白、浅色页为深棕），不单独写两套 */
.btn-nav-ghost {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px;
  border-radius: var(--r-pill); font-weight: 500; font-size: 14px;
  color: inherit; border: 1px solid currentColor;
  background: rgba(127,127,127,.08); backdrop-filter: blur(10px);
  opacity: .82; transition: opacity .3s, background .3s;
}
.btn-nav-ghost:hover { opacity: 1; background: rgba(127,127,127,.16); }
.burger { width: 40px; height: 40px; display: grid; place-items: center; }
.burger span, .burger span::before, .burger span::after {
  content: ""; display: block; width: 24px; height: 2px; background: currentColor;
  position: relative; transition: transform .3s;
}
.burger span::before { position: absolute; top: -7px; }
.burger span::after { position: absolute; top: 7px; }

/* 移动端全屏菜单 */
.menu-overlay {
  position: fixed; inset: 0; z-index: 70; background: var(--ink);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 6px; padding: 90px 24px 40px;
  opacity: 0; visibility: hidden; transform: translateY(-12px);
  transition: opacity .4s var(--ease), transform .4s var(--ease), visibility .4s;
}
.menu-overlay.open { opacity: 1; visibility: visible; transform: none; }
.menu-overlay .close {
  position: absolute; top: 22px; right: 24px; font-size: 26px; line-height: 1;
  width: 40px; height: 40px;
}
.menu-overlay nav { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.menu-overlay nav a { font-size: 17px; font-weight: 600; }
.menu-overlay nav a .chev { font-size: 12px; opacity: .7; margin-left: 6px; }
.menu-actions { margin-top: 30px; display: flex; flex-direction: column; gap: 14px; width: min(340px, 80vw); }
.menu-actions .btn { width: 100%; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100svh; display: flex; align-items: flex-end; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(36,21,5,.42) 0%, rgba(36,21,5,0) 35%, rgba(36,21,5,.55) 78%, rgba(36,21,5,.85) 100%);
}
.hero-inner { position: relative; z-index: 2; width: min(1200px, 92vw); margin: 0 auto; padding: 120px 0 40px; }
.hero h1 { color: #fff; margin-bottom: 20px; }
/* 首页 Hero 大标题：原站 class 为 text-[32px] md:text-4xl，桌面也只有 36px（比内页标题小两档） */
.hero-inner > .h-xl { font-size: clamp(28px, 2.6vw, 36px); line-height: 1.2; letter-spacing: 0; }
.hero .lead { color: rgba(255,255,255,.92); max-width: 640px; margin-bottom: 28px; }
.hero .btn-block { max-width: 100%; }
.scroll-hint {
  position: absolute; right: clamp(16px, 4vw, 44px); top: 42%;
  color: var(--accent); font-size: 20px; z-index: 3;
  animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(10px); } }

/* 贴纸证言卡 */
.sticker {
  position: absolute; z-index: 3; right: clamp(12px, 6vw, 90px); top: 24%;
  background: rgba(245,240,232,.94); color: #33291f; border-radius: 14px;
  padding: 14px 18px; max-width: 250px; font-size: 13px; line-height: 1.45;
  box-shadow: 0 12px 34px rgba(0,0,0,.28); transform: rotate(2deg);
}
.sticker b { display: block; font-size: 14px; margin-bottom: 4px; }

/* ---------- 信任背书 ---------- */
.trusted-head { text-align: center; font-size: 15px; margin-bottom: 26px; }
.logo-card {
  background: var(--cream-200); border-radius: var(--r-card);
  padding: clamp(30px, 5vw, 56px); color: #8d8579;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 30px 20px; align-items: center; justify-items: center; text-align: center;
}
.logo-card span { font-size: clamp(20px, 2.6vw, 30px); }
.logo-card .serif { font-family: Georgia, "Times New Roman", serif; }
.logo-card .sans { font-weight: 800; letter-spacing: .12em; font-size: clamp(16px, 2vw, 22px); }
.logo-card .blackletter { font-family: "Old English Text MT", Georgia, serif; font-weight: 700; }

/* ---------- 年龄倒数（原站为同一行三列：竖排标签 + 遮罩数字窗 + 右侧文案） ---------- */
:root {
  /* 数字窗遮罩：中段最亮、上下渐隐（亮度模式），取值直接抄自原站内联 style */
  --c-mask: linear-gradient(180deg, rgba(62, 31, 9, 0) 0%, #3D2616 15%,
            rgba(251, 246, 238, .99) 50%, rgba(61, 38, 22, .99) 75%, rgba(62, 31, 9, 0) 100%);
}
.counter-row {
  display: flex; flex-direction: row; align-items: center; gap: 16px;
  width: min(1440px, 100%); margin-inline: auto; padding: 72px 40px 88px;
}
.counter-side {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  flex: 1 1 0; gap: 157px; color: var(--cream-100); font-size: 14px; text-align: center;
}
.c-arrow { color: #fff; flex: none; }
.c-label-m { display: none; }
.counter-window {
  position: relative; flex: none; margin-inline: auto;
  width: 210px; height: 549px;   /* 549 = 3 行 179px×1.02，与原站数字窗口一致 */
  overflow: hidden; will-change: mask-image;
  -webkit-mask-image: var(--c-mask); mask-image: var(--c-mask);
  -webkit-mask-size: 100% 100%; mask-size: 100% 100%;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  mask-mode: luminance; mask-composite: add;
}
/* 窗口必须是普通块容器：一旦写成 flex，默认 align-items:stretch 会把数字列
   压成窗口等高（549），列高不再等于 11 行内容总高，JS 算出的位移量就成了 0 */
.counter-col {
  display: flex; flex-direction: column; align-items: center;
  font-size: 179px; line-height: 1.02; letter-spacing: -3.5px; font-weight: 400;
  color: var(--cream-100); will-change: transform;
}
.counter-copy {
  display: flex; flex: 1 1 0; flex-direction: column; justify-content: center; align-items: center;
}
.cc-box { display: flex; flex-direction: column; gap: 32px; width: 280px; }
.cc-title { font-size: 36px; line-height: 1.2; letter-spacing: -.3px; font-weight: 400; color: var(--cream-100); }
.cc-lead  { font-size: 22px; line-height: 1.45; color: rgba(251, 246, 238, .6); }
/* 窄屏（原站 md 断点以下）：逐行竖排标签、数字窗缩为 105×275 / 90px，右侧标题整列隐藏 */
@media (max-width: 767px) {
  .counter-row { gap: 0; padding: 32px 16px 44px; }   /* 原站 px-4 pt-8 pb-11，gap 仅 md 以上 */
  .counter-side { flex: 0 0 50%; gap: 32px; }         /* 原站 w-1/2（md 才改 flex-1） */
  .c-label-m { display: block; line-height: 1.35; }
  .c-label-d { display: none; }
  .counter-window { width: 105px; height: 275px; }
  .counter-col { font-size: 90px; letter-spacing: -3.5px; }
  .counter-copy { display: none; }
}

/* ---------- 圆角大图 + 跑马灯徽章 ---------- */
.rounded-media { position: relative; border-radius: var(--r-img); overflow: hidden; }
.rounded-media img { width: 100%; height: clamp(320px, 60vw, 640px); object-fit: cover; }
.media-badge {
  position: absolute; top: 26px; left: 50%; transform: translateX(-50%);
  background: rgba(245,240,232,.35); backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.35); color: #fff;
  border-radius: var(--r-pill); padding: 10px 22px; font-size: 14px; font-weight: 600;
  white-space: nowrap;
}

/* ---------- 跑马灯 ---------- */
.marquee { overflow: hidden; display: flex; }
.marquee-track { display: flex; flex-shrink: 0; align-items: center; gap: 0; animation: marquee 26s linear infinite; }
.marquee.rev .marquee-track { animation-direction: reverse; }
.marquee-track > * { flex-shrink: 0; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.marquee-text { font-size: clamp(18px, 2.4vw, 26px); font-weight: 600; padding: 14px 0; }
.marquee-text i { font-style: normal; margin: 0 22px; opacity: .6; }

/* ---------- 产品卡（一张圆角卡：左半 #3D2616 文字面板 + 右半视频，徽章与盒子贴在卡上） ---------- */
/* 原站外层容器：max-w-[1440px] mx-auto px-10 pt-[88px] pb-[100px]，所以卡最宽 1360 */
.pcard-sec { padding: 88px 40px 100px; }
.pcard {
  position: relative; width: 100%; max-width: 1360px; margin-inline: auto;
  height: 800px; border-radius: 32px; overflow: hidden;
}
.pcard-media { position: absolute; top: 0; left: 50%; bottom: 0; width: 50%; height: 100%; }
.pcard-media video { width: 100%; height: 100%; object-fit: cover; }
.pcard-tint { position: absolute; inset: 0; z-index: 1; background: rgba(76, 40, 9, .25); }
.pcard-panel {
  position: absolute; left: 0; top: 0; z-index: 2;
  width: 50%; height: 100%; background: #3D2616; border-radius: 32px 0 0 32px;
  padding: 132px 0 56px 64px;
  display: flex; flex-direction: column; justify-content: space-between; align-items: flex-start;
}
.pcard-stats { color: #fff; font-size: 44px; line-height: 1.02; letter-spacing: -.48px; font-weight: 400; }
.pcard-stats p + p { margin-top: 80px; }
.pcard-stats p:last-child { margin-bottom: 80px; }
.pcard-btn {
  display: flex; align-items: center; justify-content: center; gap: 6px; flex: none; z-index: 2;
  height: 44px; padding: 8px 24px; border-radius: var(--r-pill);
  background: linear-gradient(0deg, rgba(255,255,255,.75), rgba(255,255,255,.75)), rgba(157,157,157,.2);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.3);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  color: #000; font-size: 16px; font-weight: 500; white-space: nowrap;
  transition: background .3s, transform .3s var(--ease);
}
.pcard-btn:hover { background: linear-gradient(0deg, #fff, #fff), rgba(157,157,157,.2); }
.pcard-btn .arr { color: #243DE0; transition: transform .3s var(--ease); }
.pcard-btn:hover .arr { transform: translateX(5px); }
.pcard-badge {
  position: absolute; z-index: 3; top: 80px; left: 0; transform: translateX(-50%);
  display: flex; align-items: center; justify-content: center;
  height: 44px; padding: 8px 24px; border-radius: var(--r-pill);
  background: rgba(157,157,157,.2);
  box-shadow: inset 0 0 10px 0 rgba(0,0,0,.2), inset 0 0 0 1px rgba(255,255,255,.3);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  color: #fff; font-size: 14px; font-weight: 500; white-space: nowrap; pointer-events: none;
}
.pcard-pkg {
  position: absolute; z-index: 3; right: 56px; bottom: 56px;
  width: 246px; padding: 16px; border-radius: 10px;
  border: 1px solid rgba(255,255,255,.3); background: rgba(157,157,157,.2);
}
.pcard-pkg img { width: 100%; height: auto; border-radius: 32px; }
@media (min-width: 1280px) {
  .pcard { height: 968px; }   /* 原站 xl:h-[968px] */
}
@media (min-width: 1024px) and (max-width: 1279px) {
  .pcard-stats { font-size: 44px; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .pcard { height: 800px; }
  .pcard-stats { font-size: 32px; }
  .pcard-stats p + p { margin-top: 48px; }
  .pcard-stats p:last-child { margin-bottom: 0; }
  .pcard-badge { top: 40px; }
}
@media (max-width: 767px) {
  /* 窄屏：原站改为竖排——上方方形视频（内嵌徽章与盒子），下方居中文案与按钮 */
  .pcard-sec { padding: 16px 16px 32px; }   /* 原站 px-4 pt-4 pb-8 */
  .pcard {
    display: flex; flex-direction: column; width: min(1440px, 100%);
    height: auto; border-radius: 24px; background: #3D2616; padding-bottom: 40px;
    box-shadow: 0 -12.6px 33.7px .8px rgba(53, 26, 7, .6);
  }
  .pcard-media { position: relative; left: 0; width: 100%; height: auto; aspect-ratio: 1; overflow: hidden; }
  .pcard-tint { display: none; }
  .pcard-panel {
    position: static; width: 100%; height: auto; padding: 48px 16px 0;
    align-items: center; justify-content: flex-start; text-align: center;
  }
  .pcard-stats { font-size: 16px; line-height: 1.4; }
  .pcard-stats p + p { margin-top: 32px; }
  .pcard-stats p:last-child { margin-bottom: 0; }
  .pcard-badge { top: 24px; left: 50%; font-size: 12px; height: auto; padding: 8px 16px; }
  .pcard-pkg {
    right: auto; bottom: auto; top: calc(100% - 0px); left: 50%; transform: translate(-50%, -100%);
    width: 97px; padding: 16px;
    -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px);
  }
  .pcard-btn { margin-top: 48px; width: 200px; }
}

/* ---------- 三步流程（左侧图随右侧条目点击切换；背景深棕→浅棕渐变） ---------- */
.steps-sec {
  position: relative; z-index: 2; color: var(--cream-100);
  background: linear-gradient(180deg, #241400 17.02%, #6B5039 67.15%, #6B5039 98.35%), #6B5039;
}
.steps-row {
  display: flex; flex-direction: row; align-items: center; gap: 64px;
  width: min(1440px, 100%); margin-inline: auto; padding: 64px 40px;
}
.steps-media { flex: 1 1 0; display: flex; justify-content: center; }
.steps-stage { position: relative; width: 100%; max-width: 432px; aspect-ratio: 432 / 491; }
.steps-stage .sm { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; transition: opacity .3s ease-in-out; }
.steps-stage .sm.on { opacity: 1; }
.steps-stage .sm img { width: 100%; height: 100%; object-fit: cover; }   /* 圆角已内嵌在 PNG 透明区 */
.sm-beta {
  position: absolute; top: 16px; right: 16px; z-index: 1;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 4px 12px; border-radius: 56px;
  background: rgba(157, 157, 157, .2); border: 1px solid rgba(255, 255, 255, .3);
  box-shadow: inset 0 0 10px 0 rgba(0, 0, 0, .2);
  -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px);
  color: #fff; font-size: 12px; letter-spacing: .7px;
}
.steps-copy { display: flex; flex-direction: column; gap: 100px; flex: 1 1 0; }
.steps-title { font-size: 36px; line-height: 1.2; letter-spacing: -.3px; font-weight: 400; color: var(--cream-100); }
.sitem { position: relative; padding: 32px 0; border-bottom: 1px solid rgba(255, 255, 255, .1); cursor: pointer; }
.si-head {
  display: flex; align-items: center; gap: 54px;
  font-size: 28px; line-height: 1.28; letter-spacing: -.1px; font-weight: 400;
  color: var(--cream-100); opacity: .33; transition: opacity .3s ease-in-out;
}
.sitem.on .si-head { opacity: 1; }
.si-num { width: 25px; flex: none; font-size: 18px; font-weight: 400; }
.si-bar { position: absolute; left: 0; bottom: 0; width: 0; height: 1px; background: #fff; transition: width .3s ease-in-out; }
.sitem.on .si-bar { width: 50%; }
.steps-m { display: none; }
@media (min-width: 768px) and (max-width: 1023px) {
  /* 原站 md 档：py-10 gap-8；lg 才升到 py-[64px] gap-16 */
  .steps-row { padding: 40px; gap: 32px; }
}
@media (min-width: 768px) and (max-width: 1279px) {
  .steps-copy { gap: 64px; }   /* 原站 gap-[100px] 仅 xl 生效 */
  .steps-title { font-size: 32px; }
  .si-head { font-size: 22px; gap: 24px; }
  .si-num { font-size: 14px; }
}
@media (min-width: 1280px) {
  .steps-sec { height: 820px; }
  .steps-row { height: 100%; }
}
@media (max-width: 767px) {
  .steps-row { display: none; }
  .steps-m { display: block; padding: 56px 16px; }
  .steps-m-title { font-size: 22px; line-height: 1.02; letter-spacing: -.6px; font-weight: 400; color: var(--cream-100); }
  .steps-m-list { margin-top: 70px; display: flex; flex-direction: column; gap: 86px; }
  .steps-m-item { position: relative; display: flex; flex-direction: column; gap: 24px; }
  .steps-m-item > img { width: 100%; aspect-ratio: 432 / 491; object-fit: cover; }
  .steps-m-item .sm-beta { top: 16px; }
  .smi-cap {
    display: flex; align-items: flex-start; gap: 32px; padding: 0 16px;
    font-size: 22px; line-height: 1.02; letter-spacing: -.6px; font-weight: 400; color: var(--cream-100);
  }
  .smi-cap .si-num { font-size: 14px; line-height: 22.44px; }
}

/* ---------- 掌控区 + 证言轮播 ---------- */
.control h2 { margin-bottom: 22px; }
.control .lead { max-width: 620px; margin-bottom: 30px; color: rgba(245,240,232,.85); }
.carousel { position: relative; margin-top: clamp(36px, 5vw, 60px); }
.carousel-view { overflow: hidden; }
.carousel-track { display: flex; gap: 22px; transition: transform .55s var(--ease); }
.t-card {
  flex: 0 0 min(340px, 82vw); background: rgba(255,255,255,.05);
  border: 1px solid rgba(245,240,232,.14); border-radius: 18px; padding: 12px;
}
.t-card .ph {
  border-radius: 12px; min-height: 300px; padding: 18px;
  background: linear-gradient(160deg, #9a9a9a, #6f6f6f);
  display: flex; flex-direction: column; justify-content: space-between; color: #fff;
}
.t-card .ph .who { font-size: 14px; font-weight: 600; }
.t-card .ph .quote { font-size: 14px; line-height: 1.55; }
.car-ctrl { display: flex; gap: 12px; justify-content: center; margin-top: 26px; }
.car-btn {
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid rgba(245,240,232,.3); display: grid; place-items: center;
  font-size: 17px; transition: background .25s;
}
.car-btn:hover { background: rgba(245,240,232,.12); }

/* ---------- 诊所 / 专家卡片（浅色） ---------- */
/* 原站为区块标题（heading-2 44px），中文取 36px；字重必须显式 400，否则继承全局 h2 的 600 */
.clinics h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 400; line-height: 1.24; color: #6b6259; margin-bottom: 14px; }
.clinics .sub { color: var(--muted-light); max-width: 560px; margin-bottom: 40px; }
.expert-card {
  background: var(--cream-300); border-radius: var(--r-card);
  padding: clamp(26px, 4vw, 44px); margin-bottom: 22px; color: #55504a;
}
.expert-card .avatar {
  width: 92px; height: 92px; border-radius: 50%; overflow: hidden; margin-bottom: 26px;
  display: grid; place-items: center; background: #cfc7b9; color: #6b6259;
  font-size: 30px; font-weight: 700; border: 4px solid #e8e2d7;
}
.expert-card .qmark { font-size: 30px; color: #b3aa9c; line-height: 1; margin-bottom: 14px; }
.expert-card .quote { font-size: clamp(16px, 2vw, 20px); line-height: 1.55; color: #4a453e; margin-bottom: 26px; }
.expert-card .name { font-weight: 600; color: #55504a; margin-bottom: 6px; }
.expert-card .title { color: var(--muted-light); font-size: 14px; }

/* ---------- 首页：植根于科学（Rooted in Science） ---------- */
.rooted {
  display: grid; gap: clamp(24px, 4vw, 56px); align-items: center;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
}
.rooted-media { position: relative; border-radius: var(--r-img); overflow: hidden; }
.rooted-media img { display: block; width: 100%; height: clamp(320px, 42vw, 560px); object-fit: cover; }
.rooted-media .rname {
  position: absolute; left: 22px; right: 22px; bottom: 20px; color: #fff;
  text-shadow: 0 2px 18px rgba(0,0,0,.5);
}
.rooted-media .rname b { display: block; font-size: 17px; font-weight: 600; margin-bottom: 4px; }
.rooted-media .rname span { display: block; font-size: 13px; opacity: .9; line-height: 1.5; }
/* 右侧栏内小标题：同一区块已有 36px 的 .clinics h2，它需低一档取 28px */
.rooted-copy h3 { font-size: clamp(20px, 2.4vw, 28px); line-height: 1.28; letter-spacing: -.1px; font-weight: 400; margin: 14px 0 18px; color: #4a453e; }
.rooted-copy p { color: var(--txt-on-light); font-size: clamp(16px, 1.6vw, 19px); line-height: 1.65; margin-bottom: 16px; max-width: 56ch; }
@media (max-width: 860px) { .rooted { grid-template-columns: 1fr; } }

/* ---------- 首页：完整衰老报告 ---------- */
.report-split {
  display: grid; gap: clamp(24px, 4vw, 56px); align-items: center;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}
.report-split .report-list { margin-top: 0; }
.report-split .rounded-media img { display: block; width: 100%; height: clamp(300px, 38vw, 520px); object-fit: cover; }
@media (max-width: 860px) { .report-split { grid-template-columns: 1fr; } }

/* ---------- 科学 / 创始人 ---------- */
.science .lead { color: var(--txt-on-light); margin-bottom: 34px; }
.founder-media { position: relative; }
.founder-media .badge {
  position: absolute; top: 22px; left: 22px; width: 46px; height: 46px; border-radius: 50%;
  background: rgba(245,240,232,.5); backdrop-filter: blur(8px);
  display: grid; place-items: center; font-size: 20px; color: #3a2417;
}
.founder-media .cap { position: absolute; left: 26px; bottom: 24px; color: #fff; }
.founder-media .cap .n { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.founder-media .cap .r { font-size: 14px; line-height: 1.5; opacity: .95; }

/* ---------- 报告区 ---------- */
.report .rounded-media img { height: clamp(380px, 60vw, 660px); }
.report-panel {
  position: absolute; top: 50%; right: clamp(14px, 4vw, 60px); transform: translateY(-50%);
  width: min(330px, 78vw); background: rgba(240,235,225,.28); backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.35); border-radius: 18px; padding: 18px;
  color: #fff;
}
.report-panel h4 { font-size: 15px; font-weight: 600; margin-bottom: 14px; }
.rp-card { background: rgba(255,255,255,.16); border-radius: 12px; padding: 14px; margin-bottom: 12px; }
.rp-card:last-child { margin-bottom: 0; }
.rp-card .sys { display: flex; gap: 8px; align-items: center; font-size: 13px; margin-bottom: 12px; }
.rp-metrics { display: flex; gap: 18px; }
.rp-metrics .m { flex: 1; }
.rp-metrics .v { font-size: 26px; font-weight: 500; display: flex; align-items: baseline; gap: 6px; }
.rp-metrics .v .trend { font-size: 15px; }
.rp-metrics .v .trend.up { color: #ff6a3d; }
.rp-metrics .v .trend.down { color: #8fd18a; }
.rp-metrics .v .trend.flat { color: #d9c9a8; }
.rp-metrics .l { font-size: 11px; opacity: .85; margin-top: 6px; }
.wave {
  position: absolute; left: 6%; top: 40%; display: flex; align-items: center; gap: 3px; height: 60px;
}
.wave i { width: 2px; background: rgba(255,255,255,.75); border-radius: 2px; }
.wave i.hot { background: var(--accent); }
.wave-label { position: absolute; left: 8%; top: calc(40% + 66px); color: #fff; font-size: 13px; text-align: center; }
.wave-label b { display: block; font-size: 20px; font-weight: 500; margin-top: 4px; }
.report-list { margin-top: clamp(30px, 5vw, 54px); }
.report-list li {
  padding: 20px 4px; border-bottom: 1px solid rgba(107,98,89,.2);
  font-size: clamp(17px, 2.2vw, 24px); color: #6b6259;
}
.report-list li:first-child { border-top: 1px solid rgba(107,98,89,.2); }

/* ---------- 找机构 ---------- */
.provider-card {
  background: var(--cream-200); border-radius: var(--r-card);
  padding: clamp(30px, 5vw, 60px); color: var(--txt-on-light);
}
.provider-card h2 { color: #6b6259; margin-bottom: 22px; }
.provider-card .sub { color: var(--muted-light); margin-bottom: 30px; max-width: 640px; }
.zip-field {
  background: var(--cream-50); border: 1px solid rgba(107,98,89,.25); border-radius: 14px;
  padding: 16px 18px; margin-bottom: 18px;
}
.zip-field label { display: block; font-size: 14px; color: #55504a; margin-bottom: 8px; }
.zip-field .row { display: flex; gap: 10px; align-items: center; }
.zip-field input {
  border: none; outline: none; background: transparent; font-size: 17px; width: 100%;
  color: #33291f; font-family: inherit;
}
.zip-field input::placeholder { color: #b3aa9c; }
.provider-note { margin-top: 16px; font-size: 14px; color: var(--muted-light); }
.provider-note a { text-decoration: underline; color: #55504a; }
.zip-result { margin-top: 16px; font-size: 14px; color: #6b6259; min-height: 20px; }

/* ---------- 基因标签云 ---------- */
.tagcloud { position: relative; border-radius: var(--r-img); overflow: hidden; padding: clamp(40px, 6vw, 70px) 0; }
.tagcloud .bgimg { position: absolute; inset: 0; }
.tagcloud .bgimg img { width: 100%; height: 100%; object-fit: cover; }
.tagcloud .bgimg::after { content: ""; position: absolute; inset: 0; background: rgba(120,90,50,.25); }
.tag-rows { position: relative; z-index: 2; display: flex; flex-direction: column; gap: 14px; }
.tag-row { display: flex; gap: 12px; }
.pill {
  border-radius: var(--r-pill); padding: 11px 22px; font-size: 14px; font-weight: 600; white-space: nowrap;
  background: rgba(255,255,255,.28); backdrop-filter: blur(6px); color: #fff;
  border: 1px solid rgba(255,255,255,.3);
}
.pill.sys { background: var(--cream-50); color: var(--accent); border-color: transparent; }

/* ---------- 全身洞察 ---------- */
.insights { text-align: center; }
.insights .logo-badge {
  width: 62px; height: 62px; border-radius: 50%; margin: 0 auto 22px;
  background: rgba(245,240,232,.9); color: #3a2417; display: grid; place-items: center; font-size: 26px;
  border: 3px solid rgba(255,255,255,.5);
}
.insights .eyebrow { color: rgba(255,255,255,.85); }
.insights h2 { color: #fff; line-height: 1.25; }

/* ---------- 居家检测 + 视频 ---------- */
.home-test h2 { margin-bottom: 20px; }
.home-test .lead { color: rgba(245,240,232,.85); max-width: 620px; margin-bottom: 30px; }
.video-shell {
  margin-top: clamp(36px, 5vw, 60px); background: #000; border-radius: var(--r-img);
  overflow: hidden; position: relative;
}
.video-shell img { width: 100%; aspect-ratio: 16/9; object-fit: cover; opacity: .95; }
.play-pill {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: rgba(245,240,232,.4); backdrop-filter: blur(10px); color: #fff;
  border-radius: var(--r-pill); padding: 13px 28px; font-size: 15px; font-weight: 600;
}
.video-name { position: absolute; left: 26px; bottom: 26px; color: #fff; }
.video-name .n { font-size: clamp(22px, 3.4vw, 34px); font-weight: 700; }
.video-name .r { display: inline-block; background: #fff; color: #241505; font-size: 14px; padding: 4px 10px; margin-top: 8px; }

/* ---------- 页脚 ---------- */
.footer { background: var(--ink); padding: clamp(50px, 7vw, 90px) 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 50px; }
.footer .fbrand { font-weight: 700; font-size: 17px; margin-bottom: 16px; }
.footer .fdesc { color: var(--muted-dark); max-width: 380px; font-size: 15px; line-height: 1.6; }
.footer-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px 24px; }
.footer-links a { color: var(--txt-on-dark); font-size: 15px; opacity: .9; }
.footer-links a:hover { opacity: 1; text-decoration: underline; }
.footer-contact { margin-top: 40px; color: var(--txt-on-dark); font-size: 15px; line-height: 1.8; }
.footer-addr { margin-top: 26px; color: var(--muted-dark); font-size: 14px; line-height: 1.6; }
.footer-legal { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px 26px; }
.footer-legal a { font-size: 14px; color: var(--txt-on-dark); }
/* 原站页脚左下角只有一个 wordmark，隐藏重复的文字版品牌标 */
.footer-logo { margin-top: 44px; }
.footer-logo .brand { display: none; }
.footer-logo .brand-svg { margin-top: 0; }

/* ---------- 滚动揭示动画 ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee-track { animation: none; }
}

/* ---------- 产品页顶部公告条（原站挂在 header 下方的绝对定位层，关闭后不回流） ---------- */
.promo { position: relative; height: 0; z-index: 40; }
.promo.gone { display: none; }
.promo-in {
  position: absolute; top: 98px; left: 16px; right: 16px; margin: 0 auto; max-width: 1360px;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  padding: 12px; border-radius: 16px; backdrop-filter: blur(15px);
  background: radial-gradient(113.73% 113.73% at 100% 50%, rgba(255,222,208,.8) 0%, rgba(252,206,186,.8) 22.17%, rgba(249,249,249,.8) 100%);
}
@media (min-width: 1024px) { .promo-in { left: 40px; right: 40px; flex-direction: row; gap: 0; padding: 12px 24px; border-radius: 24px; } }
.promo-in p { flex: 1; font-size: 15px; line-height: 1.3; color: #3c2616; text-align: center; }
@media (min-width: 1024px) { .promo-in p { font-size: 16px; line-height: 20px; text-align: left; padding-right: 16px; } }
.promo-act { display: flex; align-items: center; gap: 24px; justify-content: center; line-height: 20px; }
.promo-act a { color: #4f4034; font-size: 16px; font-weight: 400; text-decoration: underline; white-space: nowrap; transition: opacity .2s; }
.promo-act a:hover { opacity: .8; } .promo-act a:active { opacity: .5; }
/* 关闭按钮：原站 lg:block / 小屏隐藏（小屏用一条下划线文字代替，此处按原站只保留桌面态） */
.promo-x { display: none; width: 20px; height: 20px; color: #3c2616; cursor: pointer; }
.promo-x:hover { opacity: .6; } .promo-x:active { opacity: .5; }
@media (min-width: 1024px) { .promo-x { display: block; } }

/* ---------- 产品页首屏 PDP（原站 /the-systemage-test 第 0 段：左轮播 + 右计价下单） ---------- */
.pdp { background: #fbf6ee; color: #3e1f09; padding: 92px 16px 64px; }
@media (min-width: 768px) { .pdp { padding: 104px 24px 64px; } }
/* ≥1024 的公告条占 98..142，首屏内容从 158 起（原站实测图顶 150） */
@media (min-width: 1024px) { .pdp { padding-top: 158px; } }
@media (min-width: 1280px) { .pdp { padding: 158px 40px 64px; } }
.pdp-in { max-width: 1440px; margin: 0 auto; display: flex; flex-direction: column; gap: 32px; }
@media (min-width: 768px) {
  .pdp-in { flex-direction: row; }
  .pdp-left, .pdp-right { flex: 0 0 50%; max-width: 50%; }
  .pdp-right { display: flex; justify-content: flex-end; }
  .pdp-buy { width: 100%; max-width: 432px; }
}

/* 左：产品图轮播（main.js 的 #pdpSlides / #pdpDots / [data-pdp] 契约） */
.pdp-gallery { position: relative; }
.pdp-slides { display: flex; overflow: hidden; border-radius: 12px; transition: transform .55s var(--ease); }
.pdp-slide { flex: 0 0 100%; }
.pdp-slide img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.pdp-nav { position: absolute; inset: 0; display: flex; align-items: center; justify-content: space-between; padding: 0 12px; pointer-events: none; }
.pdp-arrow {
  width: 44px; height: 44px; border-radius: 56px; padding: 12px; color: #fff; pointer-events: auto;
  display: grid; place-items: center; background: rgba(157,157,157,.2); border: 1px solid rgba(255,255,255,.3);
  box-shadow: inset 0 0 10px rgba(0,0,0,.2); -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px);
  transition: background .3s;
}
.pdp-arrow:hover { background: rgba(157,157,157,.34); }
.pdp-dots { display: flex; gap: 8px; justify-content: center; margin-top: 16px; }
.pdp-dots i { width: 16px; height: 8px; border-radius: 999px; background: rgba(145,106,66,.16); transition: width .3s, background .3s; }
.pdp-dots i.on { width: 24px; background: #916a42; }

/* 左：性别说明卡 */
.pdp-sexcard {
  display: flex; align-items: center; gap: 14px; margin-top: 24px; padding: 20px;
  border: 1px solid rgba(145,106,66,.2); border-radius: 16px; background: rgba(145,106,66,.02);
}
.pdp-marks { display: flex; flex: none; }
.pdp-mark {
  width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; flex: none;
  color: #fff; font-size: 16px; font-weight: 600; letter-spacing: 1.28px; text-transform: uppercase;
  text-shadow: rgba(77,37,33,.4) .2px .5px 1px;
}
.pdp-mark.m { background: linear-gradient(135deg, #434535 0%, #b1a988 47.1%, #454233 100%); }
.pdp-mark.f { margin-left: -8px; background: linear-gradient(135deg, #501f1c 0%, #d0826a 35.1%, #d69070 47.1%, #b46e59 58.4%, #4b2d1c 100%); }
.pdp-sexcard p { font-size: 14px; line-height: 20px; color: #3e1f09; }

/* 法规脚注：原站在桌面放左列、移动端放右列 CTA 下，两处各一份 */
.pdp-legal { font-size: 12px; line-height: 20px; color: #938070; }
.pdp-legal p + p { margin-top: 10px; }
.pdp-legal a { text-decoration: underline; color: inherit; }
.pdp-legal b { color: #3e1f09; font-weight: 600; }
.pdp-legal .dg { opacity: .5; }
.dp-only { display: none; margin-top: 24px; padding-top: 16px; border-top: 1px solid rgba(147,128,112,.2); }
.mo-only { margin-top: 20px; }
@media (min-width: 768px) {
  .dp-only { display: flex; flex-direction: column; }
  .mo-only { display: none; }
}

/* 右：标题与价格方案 */
.pdp-cap { display: block; font-size: 15px; color: #938070; }
.pdp-title h1 { margin-top: 10px; font-size: 28px; font-weight: 400; line-height: 1.24; letter-spacing: -.2px; color: #3e1f09; }
@media (min-width: 1024px) { .pdp-title h1 { font-size: 36px; } }
.pdp-bundles { display: flex; flex-direction: column; gap: 16px; margin-top: 28px; }
.pdp-bundle { border: 1px solid #dfdbd6; border-radius: 16px; padding: 18px 20px; cursor: pointer; transition: border-color .3s, background .3s; }
.pdp-bundle:hover { border-color: rgba(145,106,66,.5); }
/* 选中态为 2px 描边，内边距同步减 1px 以避免跳动 */
.pdp-bundle.on { border: 2px solid #916a42; background: rgba(145,106,66,.08); padding: 17px 19px; }
.pb-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.pb-name { font-size: 19px; }
.pb-price { font-size: 17px; white-space: nowrap; }
.pb-price s { opacity: .5; margin-right: 6px; font-size: 15px; }
.pb-price b { font-weight: 500; }
.pb-price b.hl { color: #916a42; }
.pb-price i { font-style: normal; font-size: 13px; color: #938070; margin-left: 2px; }
.pb-hsa { margin-bottom: 8px; font-size: 12px; font-weight: 500; color: rgba(145,106,66,.85); }
.pb-open { margin-top: 12px; }
.pb-desc { font-size: 14px; line-height: 22px; color: rgba(62,31,9,.78); }
.pb-hr { display: block; height: 1px; margin: 16px 0; background: rgba(147,128,112,.25); }
.pb-ver { font-size: 13px; color: #938070; margin-bottom: 10px; }
.pb-ver span { color: #916a42; }
.pb-versions { border: 0; }
.pb-vrow {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border: 1px solid rgba(147,128,112,.5); border-radius: 12px; background: #fbf6ee; padding: 10px 12px;
}
.pb-vrow + .pb-vrow { margin-top: 10px; }
.pb-vl { display: flex; align-items: center; gap: 10px; font-size: 15px; }
.pb-dot { width: 14px; height: 14px; border-radius: 50%; flex: none; }
.pb-dot.f { background: linear-gradient(290.65deg, #d69070 0%, #b46e59 45%, #501f1c 100%); opacity: .8; }
.pb-dot.m { background: linear-gradient(290.04deg, #b1a988 0%, #7d7d55 45%, #434535 100%); opacity: .85; }
.pb-qty { display: flex; align-items: center; justify-content: space-between; width: 73px; flex: none; }
.pb-btn {
  width: 20px; height: 20px; border-radius: 50%; background: #fff; border: .5px solid #bfbfbf;
  display: grid; place-items: center; flex: none; transition: transform .2s;
}
.pb-btn:hover { transform: scale(1.08); }
.pb-btn.minus { border-color: #d9d9d9; }
.pb-btn[aria-disabled="true"] { opacity: .6; }
.pb-n { min-width: 16px; text-align: center; font-size: 14px; }
.pb-sum { display: flex; justify-content: space-between; gap: 12px; margin-top: 14px; font-size: 12px; font-weight: 500; line-height: 20px; letter-spacing: .24px; color: #916a42; }
.pb-note { margin-top: 10px; font-size: 11px; line-height: 17px; color: #595959; }

/* 右：合计与下单按钮（未加购时整块置灰，由 main.js 切换 aria-disabled） */
.pdp-cta { margin-top: 24px; }
.pdp-totalwrap { margin-bottom: 14px; }
.pdp-total { display: flex; align-items: baseline; font-size: 18px; font-weight: 500; }
.pdp-total .tu { margin-left: 8px; font-size: 16px; font-weight: 400; color: #938070; }
.pdp-req { margin-top: 8px; font-size: 14px; font-weight: 500; color: #916a42; }
.btn-order, .btn-hsa {
  width: 100%; height: 56px; border-radius: 999px; display: flex; align-items: center; justify-content: center;
  gap: 8px; font-size: 15px; font-weight: 500; transition: opacity .3s, transform .3s var(--ease), background .3s;
}
.btn-order {
  color: #fff;
  background: linear-gradient(0deg, rgba(223,46,0,.85), rgba(223,46,0,.85)), rgba(212,78,43,.2);
  box-shadow: inset 0 0 20px rgba(218,63,23,.6), 0 0 0 2px rgb(175,45,11);
}
.btn-hsa {
  margin-top: 12px; color: #3e1f09; background: #fff;
  box-shadow: inset 0 0 20px rgba(145,106,66,.08), 0 0 0 2px rgba(145,106,66,.08);
  border: 1px solid rgba(255,255,255,.3);
}
.btn-order:not([aria-disabled="true"]):hover, .btn-hsa:not([aria-disabled="true"]):hover { transform: translateY(-2px); }
.btn-order[aria-disabled="true"], .btn-hsa[aria-disabled="true"] { opacity: .5; cursor: not-allowed; }


/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .nav-links, .nav-cta .btn, .nav-cta .btn-nav-ghost { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .report-panel { position: static; transform: none; width: 100%; margin-top: 14px; }
  .wave, .wave-label { display: none; }
  .sticker { display: none; }
}
@media (min-width: 901px) {
  .burger { display: none; }
  .menu-overlay { display: none; }
}

/* ---------- 预加载载入效果 ---------- */
.preloader {
  position: fixed; inset: 0; z-index: 100; background: var(--ink);
  display: grid; place-items: center;
  transition: opacity .6s var(--ease), visibility .6s;
}
.preloader.done { opacity: 0; visibility: hidden; }
.pl-brand { display: flex; flex-direction: column; align-items: center; gap: 16px; color: var(--txt-on-dark); }
.pl-mark {
  width: 64px; height: 64px; border-radius: 50%; border: 2px solid currentColor;
  display: grid; place-items: center; font-size: 30px;
  animation: plspin 1.8s var(--ease) infinite;
}
@keyframes plspin { 0% { transform: rotate(0) scale(1); } 50% { transform: rotate(180deg) scale(1.1); } 100% { transform: rotate(360deg) scale(1); } }
.pl-bar { width: 150px; height: 2px; background: rgba(245,240,232,.18); border-radius: 2px; overflow: hidden; }
.pl-bar i { display: block; height: 100%; width: 40%; background: var(--accent); animation: plload 1.1s ease-in-out infinite; }
@keyframes plload { 0% { transform: translateX(-110%); } 100% { transform: translateX(360%); } }
.pl-text { font-size: 13px; letter-spacing: .3em; color: var(--muted-dark); }

/* 载入后 Hero 内容错帧入场 */
.hero-inner > * { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
body.loaded .hero-inner > * { opacity: 1; transform: none; }
body.loaded .hero-inner > *:nth-child(2) { transition-delay: .12s; }
body.loaded .hero-inner > *:nth-child(3) { transition-delay: .24s; }

/* ---------- 二级菜单：桌面下拉 ---------- */
.nav-links .has-sub { position: relative; }
.nav-links .has-sub > a::after { content: " ▾"; font-size: 10px; opacity: .7; }
.nav-links .sub {
  position: absolute; top: 100%; left: 0; min-width: 190px; margin-top: 12px;
  background: rgba(36,21,5,.95); backdrop-filter: blur(14px);
  border: 1px solid rgba(245,240,232,.14); border-radius: 14px; padding: 10px;
  display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s;
}
.nav-light .nav-links .sub { background: rgba(240,235,225,.97); color: #33291f; }
.nav-links .has-sub:hover .sub,
.nav-links .has-sub.open .sub { opacity: 1; visibility: visible; transform: none; }
.nav-links .sub a { padding: 9px 12px; border-radius: 9px; font-size: 14px; opacity: .9; }
.nav-links .sub a:hover { background: rgba(245,240,232,.12); opacity: 1; }

/* ---------- 二级菜单：移动端手风琴 ---------- */
.menu-overlay .expand .chev { display: inline-block; transition: transform .3s; }
.menu-overlay .expand.open .chev { transform: rotate(90deg); }
.m-sub { overflow: hidden; max-height: 0; transition: max-height .45s var(--ease); display: flex; flex-direction: column; gap: 16px; }
.m-sub.open { max-height: 260px; }
.m-sub a { font-size: 14px; opacity: .72; }

/* ---------- 视差 / 层叠 / 堆叠卡 ---------- */
.bg-fixed { background-size: cover; background-position: center; background-attachment: fixed; }
[data-parallax], [data-drift] { will-change: transform; }

/* ---------- 错帧揭示（子元素依次入场） ---------- */
.reveal-group > * { opacity: 0; transform: translateY(30px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal-group.in > * { opacity: 1; transform: none; }
.reveal-group.in > *:nth-child(2) { transition-delay: .1s; }
.reveal-group.in > *:nth-child(3) { transition-delay: .2s; }
.reveal-group.in > *:nth-child(4) { transition-delay: .3s; }
.reveal-group.in > *:nth-child(5) { transition-delay: .4s; }
.reveal-group.in > *:nth-child(6) { transition-delay: .5s; }

/* ---------- 子页面通用组件 ---------- */
.page-head { padding: 150px 0 clamp(36px, 5vw, 64px); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; }
.info-card { border-radius: var(--r-card); padding: 26px; }
.on-dark .info-card { background: rgba(255,255,255,.05); border: 1px solid rgba(245,240,232,.12); }
.on-light .info-card { background: var(--cream-200); color: var(--txt-on-light); }
.info-card b { display: block; font-size: 19px; margin-bottom: 10px; }
.info-card p { font-size: 14px; line-height: 1.65; opacity: .85; }
.faq details { border-bottom: 1px solid rgba(107,98,89,.2); padding: 18px 4px; }
.faq summary { cursor: pointer; font-size: 17px; color: #55504a; font-weight: 600; }
.faq details p { margin-top: 12px; color: var(--muted-light); font-size: 15px; line-height: 1.6; }

@media (max-width: 900px) {
  .nav-links .sub { display: none; }
  .bg-fixed { background-attachment: scroll; }
}

/* ---------- 品牌字体（本地化 TTF，仅拉丁字形生效，中文回退系统栈） ---------- */
@font-face {
  font-family: "elzaFont";
  src: url("../fonts/elza-400.ttf") format("truetype");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "elzaFont";
  src: url("../fonts/elza-500.ttf") format("truetype");
  font-weight: 500; font-style: normal; font-display: swap;
}

/* ---------- 背景视频层（hero 循环视频 / 各页背景动画） ---------- */
.hero-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0;
  /* 入场只做缩放回落，不旋转：原站 hero 背景（含 providers 载入视频）从始至终是正立的 */
  transform: scale(1.14);
  transition: opacity 1s var(--ease), transform 1.6s cubic-bezier(.65, 0, .35, 1) .45s;
}
body.loaded .hero-video,
.hero-video.ready { opacity: 1; transform: scale(1.06) rotate(var(--hero-flip)); }
.hero-bg img {
  transform: scale(1.14);
  transition: opacity 1s var(--ease), transform 1.6s cubic-bezier(.65, 0, .35, 1) .45s;
}
body.loaded .hero-bg img { transform: scale(1.06) rotate(var(--hero-flip)); }
.hero-bg.video-on img { opacity: 0; }

/* 宽幅视频带（science 页金色绸缎动画） */
.video-band { position: relative; width: 100%; height: clamp(350px, 46vw, 530px); overflow: hidden; }
.video-band video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; transform: scale(1.08);
}
.video-band .band-inner { position: absolute; inset: 0; z-index: 2; display: flex; flex-direction: column; justify-content: flex-end; }
.video-band .band-inner .container { padding-bottom: clamp(28px, 4vw, 52px); }

/* 暖调叠加视频区（21 系统，1 个身体 / 全身衰老洞察） */
.video-tint { position: relative; overflow: hidden; background: #241400; }
.video-tint video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.video-tint .tint { position: absolute; inset: 0; background: #ba8f52; mix-blend-mode: multiply; }
.video-tint .tint-inner {
  position: relative; z-index: 2; min-height: clamp(460px, 78vh, 720px);
  max-width: 432px; margin: 0 auto; padding: clamp(48px, 8vw, 90px) 16px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 22px; text-align: center;
}
.video-tint .tint-orb {
  width: 50px; height: 50px; border-radius: 50%; background: #fff; color: #241505;
  display: grid; place-items: center; font-size: 20px; line-height: 1;
  box-shadow: 0 0 0 8px rgba(157,157,157,.2), 0 0 0 9px rgba(255,255,255,.3);
}
.video-tint .tint-kicker { font-size: 15px; letter-spacing: .48px; color: #fff; }
.video-tint .tint-inner h2 { color: #fbf6ee; font-size: clamp(24px, 3vw, 36px); font-weight: 400; line-height: 1.24; }

/* 视频外壳内的真实视频（居家检测设备演示） */
.video-shell video { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; }

/* 品牌 SVG 字标（原图为黑色，深色页脚反白） */
.brand-svg { height: 26px; width: auto; margin-top: 20px; filter: invert(1); }

/* ---------- science 页：吸顶全屏 Hero + 内容层叠上移 ---------- */
.sci-hero {
  position: sticky; top: 0; height: 100svh; overflow: hidden;
  display: flex; flex-direction: column; justify-content: flex-end;
}
.sci-hero .hero-media { position: absolute; inset: 0; background: #241400; }
.sci-hero .hero-media img { width: 100%; height: 100%; object-fit: cover; }
.sci-hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(36,21,5,.5), rgba(36,21,5,.05) 40%, rgba(36,21,5,.72) 88%, var(--ink) 100%);
}
.sci-hero .hero-copy { position: relative; z-index: 2; padding-bottom: clamp(40px, 7vh, 90px); }
.sci-body { position: relative; z-index: 3; background: var(--ink); }

/* ---------- science 页：六段吸顶胶囊导航（原站：暖棕圆角带 #624730 + 内嵌胶囊条） ---------- */
.sci-band {
  position: sticky; top: 70px; z-index: 30;
  padding: 20px 0; background: #624730;
  border-radius: 32px 32px 0 0;
}
.sec-nav { position: static; }
.sec-nav .sec-scroll { overflow-x: auto; scrollbar-width: none; padding: 0 16px; }
.sec-nav .sec-scroll::-webkit-scrollbar { display: none; }
.sec-pills {
  display: flex; align-items: center; gap: 18px; width: max-content;
  margin: 0; padding: 12px 16px 12px 32px;
  border: 1px solid rgba(255,255,255,.3); border-radius: 99px;
  background: rgba(157,157,157,.2); backdrop-filter: blur(15px);
}
.sec-pills button {
  height: 35px; padding: 0 16px; border-radius: 56px; white-space: nowrap;
  font-size: 11px; font-weight: 500; letter-spacing: 0; text-transform: none;
  color: #fbf6ee; background: transparent;
  transition: background .3s var(--ease), color .3s var(--ease);
}
.sec-pills button[aria-pressed="true"] { background: rgba(255,255,255,.85); color: rgba(48,48,48,.6); }
@media (min-width: 1024px) {
  .sci-band { padding: 60px 0; border-radius: 80px 80px 0 0; }
  .sec-pills { margin: 0 auto; gap: 32px; padding: 16px 24px; border-radius: 100px; background: rgba(88,55,32,.7); }
  .sec-pills button { height: 44px; padding: 0 24px; font-size: 12px; }
}

/* ---------- science 页：熵曲线 / BioNoise 散点 / 一致性 / 参考文献 ---------- */
.curve-fig { margin-top: 34px; }
.curve-fig svg { width: 100%; height: auto; display: block; }
.noise-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 30px; }
.noise-cell { border-radius: var(--r-card); padding: 22px; background: rgba(255,255,255,.05); border: 1px solid rgba(245,240,232,.12); }
.noise-cell h4 { font-size: 14px; margin-bottom: 14px; color: var(--muted-dark); font-weight: 600; }
.noise-plot { position: relative; height: 150px; border-radius: 12px; background: rgba(0,0,0,.28); overflow: hidden; }
.noise-plot .band-line {
  position: absolute; left: 0; right: 0; top: 50%; height: 34px; transform: translateY(-50%);
  background: rgba(143,209,138,.12);
  border-top: 1px dashed rgba(143,209,138,.5); border-bottom: 1px dashed rgba(143,209,138,.5);
}
.noise-plot i { position: absolute; width: 3px; height: 3px; border-radius: 50%; background: rgba(245,240,232,.85); animation: noiseJit 3.2s ease-in-out infinite; }
.noise-plot.hot i { background: #ff6a3d; }
@keyframes noiseJit { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(var(--jit, 4px)); } }
@media (max-width: 700px) { .noise-grid { grid-template-columns: 1fr; } }

.refs { margin-top: 26px; display: flex; flex-direction: column; }
.refs li { padding: 14px 2px; border-bottom: 1px solid rgba(245,240,232,.14); font-size: 14px; color: var(--muted-dark); line-height: 1.6; }
.on-light .refs li { border-color: rgba(107,98,89,.2); color: var(--muted-light); }

.process-fig { margin-top: 30px; }
.process-fig img { width: 100%; height: auto; }
.process-fig .desktop { display: none; }
.process-fig .mobile { display: block; }
@media (min-width: 901px) {
  .process-fig .desktop { display: block; }
  .process-fig .mobile { display: none; }
}

.legend { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 18px; font-size: 13px; color: var(--muted-dark); }
.legend span { display: inline-flex; align-items: center; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 8px; }
.legend .ok i { background: #8fd18a; }
.legend .mid i { background: #e8c46a; }
.legend .warn i { background: #ff6a3d; }

@media (prefers-reduced-motion: reduce) {
  .noise-plot i { animation: none; }
  .hero-video { opacity: 1; }
  /* 降低动效：跳过翻转入场，直接正立静止 */
  body.loaded .hero-video,
  body.loaded .hero-bg img,
  .hero-video,
  .hero-bg img { transform: scale(1.06) rotate(0deg); transition: none; }
}

/* ---------- science 页：Hero 双栏与熵曲线卡片 ---------- */
.sci-hero .hero-grid {
  position: relative; z-index: 2; width: min(1400px, 92vw); margin: 0 auto;
  display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(24px, 3vw, 40px);
  align-items: end; padding: 120px 0 clamp(36px, 6vh, 72px);
}
.sci-hero .hero-copy { grid-column: 1 / span 6; padding-bottom: 0; }
.sci-hero .hero-fig { grid-column: 7 / span 6; }
.sci-hero h1 { color: #fff; margin-bottom: 18px; }
.sci-hero .lead { color: rgba(251,246,238,.78); max-width: 520px; margin-bottom: 26px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-actions .btn { flex: 0 1 auto; }
.curve-card {
  border: 1px solid rgba(255,255,255,.4); border-radius: 20px;
  background: rgba(157,157,157,.22); backdrop-filter: blur(15px);
  padding: clamp(16px, 2vw, 26px);
}
.curve-card .cap { font-size: 12px; color: rgba(251,246,238,.72); margin-top: 12px; line-height: 1.5; }
.curve-fig .axis { stroke: rgba(251,246,238,.35); stroke-width: 1.5; }
.curve-fig .grid-l { stroke: rgba(251,246,238,.12); stroke-width: 1; }
.curve-fig .linear { stroke: rgba(251,246,238,.55); stroke-width: 2; stroke-dasharray: 7 7; fill: none; }
.curve-fig .bio { stroke: var(--accent); stroke-width: 3.5; fill: none; stroke-linecap: round; }
.curve-fig .bio-fill { fill: url(#bioGrad); opacity: .55; }
.curve-fig .node { fill: #fff; stroke: var(--accent); stroke-width: 3; }
.curve-fig .halo { fill: none; stroke: rgba(217,62,26,.45); stroke-width: 2; }
.curve-fig text { fill: rgba(251,246,238,.85); font-size: 13px; font-family: var(--font); }
.curve-fig .tag { font-size: 12px; letter-spacing: .04em; }
.curve-key { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 14px; font-size: 12px; color: rgba(251,246,238,.8); }
.curve-key i { display: inline-block; width: 18px; height: 0; border-top: 2px solid var(--accent); margin-right: 8px; vertical-align: middle; }
.curve-key .lin i { border-top: 2px dashed rgba(251,246,238,.7); }
@media (max-width: 900px) {
  .sci-hero .hero-grid { grid-template-columns: 1fr; align-items: start; }
  .sci-hero .hero-copy, .sci-hero .hero-fig { grid-column: 1 / -1; }
}

/* ---------- science 页：段落骨架（居中标题 + 大圆角媒体卡 + 双栏文字）---------- */
/* 度量全部取自原站 /science CDP 实测：段内边距 60/80（上下对称），H2 44px/400/-.88px，
   媒体卡 max 1360、圆角 32px，文字区 max 680 → lg 解约 + px-20，双栏 571 / 栏间距 60 → xl 120 */
.sci-sec { padding: 60px 0; }
.sci-wrap { width: 100%; max-width: 1440px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; }
.sci-h2 { margin: 0; padding: 0 16px; text-align: center; font-weight: 400; font-size: 28px; line-height: 1.5; letter-spacing: -.56px; color: #f1e7da; }
.sci-h2.alt { color: #fbf6ee; }
.sci-media { position: relative; overflow: hidden; width: calc(100% - 32px); margin-top: 32px; border-radius: 24px; }
.sci-media > .sci-cover { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.sci-txt { width: 100%; max-width: 680px; margin: 60px auto 0; padding: 0 16px; }
@media (min-width: 768px) { .sci-txt { padding: 0 32px; } }
.sci-cols { display: grid; grid-template-columns: 1fr; gap: 60px; }
.sci-col { display: flex; flex-direction: column; gap: 40px; }
.sci-block { display: flex; flex-direction: column; gap: 16px; text-align: center; }
.sci-h3 { font-weight: 400; font-size: 22px; line-height: 1.2; letter-spacing: .44px; color: #f1e7da; }
/* 正文：原站拉丁文度量 line-height 1.22，中文需要更大行高才能避免换行挤压 */
.sci-ps { display: flex; flex-direction: column; gap: 24px; }
.sci-ps p { font-size: 16px; line-height: 1.62; letter-spacing: .48px; color: #948071; }
.sci-ps b, .sci-ps i { font-weight: 500; color: #c9b8a5; }
.sci-refs { display: flex; flex-direction: column; gap: 16px; padding-top: 16px; border-top: 1px solid rgba(147,128,112,.35); }
.sci-refs-t { font-size: 18px; line-height: 1.22; letter-spacing: .36px; color: #948071; text-align: center; }
.sci-refs-l { padding-left: 20px; list-style: disc; font-size: 16px; line-height: 1.5; color: #746a5d; }
.sci-refs-l li { padding: 0; border: 0; }
.sci-refs-l i { font-style: italic; opacity: .9; }
/* 朱橙胶囊按钮（原站 PrimaryButton：高 58 / 半透明朱橙 + inset 光晕 + 2px 外环） */
.sci-cta {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; height: 58px; border-radius: 999px; border: 1px solid rgba(255,255,255,.2);
  color: #fff; font-size: 14px; font-weight: 500; letter-spacing: normal;
  background-color: rgba(212,78,43,.2);
  background-image: linear-gradient(0deg, rgba(223,46,0,.85), rgba(223,46,0,.85));
  box-shadow: inset 0 0 20px 0 rgba(218,63,23,.6), 0 0 0 2px rgb(175,45,11);
  backdrop-filter: blur(8px); transition: transform .3s var(--ease), filter .3s var(--ease);
}
.sci-cta:hover { filter: brightness(1.12); transform: translateY(-1px); }
/* 原站段⑤两个 CTA 是移/桌副本：左栏 lg:hidden，右栏 hidden lg:flex，不能同时出现 */
.sci-cta.only-lg { display: none; }
@media (min-width: 1024px) {
  .sci-cta.only-sm { display: none; }
  .sci-cta.only-lg { display: flex; }
}
@media (min-width: 1024px) {
  .sci-sec { padding: 80px 0; }
  .sci-h2 { font-size: 36px; line-height: 1.22; letter-spacing: -.3px; padding: 0; }
  .sci-media {
    width: calc(100% - 80px); max-width: 1360px; margin-top: 60px; border-radius: 32px;
    box-shadow: 0 -12px 40px 1px rgba(251,246,238,.2);
  }
  .sci-txt { max-width: none; padding: 0 80px; }
  .sci-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 60px; }
  .sci-col { gap: 24px; }
  .sci-block { text-align: left; }
  .sci-h3 { font-size: 24px; }
  .sci-refs-t { text-align: left; }
}
@media (min-width: 1280px) { .sci-cols { column-gap: 120px; } }

/* ---------- 媒体卡 ①：衰老熵曲线（原站为 Rive entropy-curve，零依赖下用自绘 SVG 替代） ---------- */
.sci-media-curve {
  min-height: 340px; padding: 68px 14px 24px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.1);
  background: radial-gradient(125% 100% at 50% 0%, #2c1a06 0%, #150c03 58%, #0b0703 100%);
}
.sci-media-curve .curve-fig { width: 100%; max-width: 1080px; margin: 0; display: flex; align-items: center; justify-content: center; }
.sci-media-curve .curve-fig svg { width: 100%; height: auto; display: block; }
@media (min-width: 1024px) {
  .sci-media-curve { aspect-ratio: 1360 / 580; min-height: 0; padding: 34px 40px 78px; }
  /* 自绘曲线图的内在比例为 640:400，在宽卡内改为按高铺满、水平居中 */
  .sci-media-curve .curve-fig svg { width: auto; height: 100%; max-width: 100%; }
}

/* 图例（媒体卡①与④共用：三色状态点） */
.sys-legend {
  position: absolute; z-index: 4; top: 30px; left: 50%; transform: translateX(-50%);
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 22px;
  width: max-content; max-width: calc(100% - 32px);
}
.sys-legend li { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 400; letter-spacing: .28px; color: #f1e7da; }
.sys-legend .d { flex: 0 0 auto; width: 16px; height: 16px; border-radius: 50%; background: var(--dot, #a3d3e7); box-shadow: 0 0 4px 2px rgba(255,255,255,.28); }
@media (min-width: 1024px) {
  .sys-legend { top: auto; transform: none; justify-content: flex-start; }
  .sci-media-sys .sys-legend { left: 27px; bottom: 35px; }
  .sci-media-curve .sys-legend { left: 32px; bottom: 26px; }
  .sys-legend li { font-size: 18px; letter-spacing: .36px; }
}

/* ---------- 媒体卡 ②：BioNoise™ 测量（显微镜大卡 + 右下角玻璃卡，原站为 Rive science-noise） ---------- */
.sci-media-bn { aspect-ratio: 4 / 5; background: #0b0703; }
.sci-media-bn::after { content: ""; position: absolute; inset: 0; z-index: 2; background: linear-gradient(180deg, rgba(11,7,3,.1), rgba(11,7,3,.55)); }
@media (min-width: 1024px) { .sci-media-bn { aspect-ratio: 1360 / 580; } }
.bn-glass { display: none; }
@media (min-width: 1024px) {
  .bn-glass {
    display: block; position: absolute; z-index: 3; bottom: 24px; right: clamp(24px, 6.47vw, 88px);
    width: clamp(420px, 42.2vw, 574px); aspect-ratio: 574 / 360; overflow: hidden;
    border: 1px solid rgba(255,255,255,.3); border-radius: 16px;
    background: rgba(54,33,8,.6); backdrop-filter: blur(6px);
  }
}
.bn-glass-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 68% 66%; transform: scale(1.1); opacity: .75; filter: blur(8px); }
.bn-glass-tint { position: absolute; inset: 0; background: rgba(54,33,8,.48); }
.bn-glass-in { position: relative; z-index: 2; height: 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 26px 22px; }
.bn-plot { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.bn-cap { font-size: 13px; line-height: 1.3; letter-spacing: .26px; color: #f1e7da; opacity: .92; }
.bn-bars { position: relative; flex: 1 1 auto; min-height: 110px; display: flex; align-items: flex-end; gap: 2px; border-bottom: 1px solid rgba(242,232,219,.4); }
.bn-bars i { flex: 1 1 auto; min-width: 2px; height: var(--h, 40%); border-radius: 2px 2px 0 0; background: linear-gradient(180deg, #f2cf83, #8a5f22); transform-origin: bottom; animation: bnRise 2.9s ease-in-out infinite; animation-delay: var(--d, 0s); }
.bn-bars.hot i { background: linear-gradient(180deg, #f6b478, #8f3f16); }
@keyframes bnRise { 0%, 100% { transform: scaleY(.7); } 50% { transform: scaleY(1); } }
.bn-sub { font-size: 12px; line-height: 1.45; color: rgba(242,232,219,.62); }

/* ---------- 媒体卡 ③：标志物筛选（双玻璃卡 + CpG 网格 + 标志物流 + 箭头） ---------- */
.sci-media-sel { height: 660px; background: #0b0703; }
@media (min-width: 360px) { .sci-media-sel { height: 740px; } }
.sel-mul { position: absolute; inset: 0; background: rgba(0,0,0,.42); mix-blend-mode: multiply; }
.sel-dim { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,7,3,.55), rgba(11,7,3,.2) 42%, rgba(11,7,3,.62)); }
.sel-cards { position: absolute; z-index: 3; inset: 35px; display: flex; flex-direction: column; gap: 22px; }
.sel-card {
  position: relative; flex: 1 1 0; min-height: 0; overflow: hidden; padding: 54px 16px 16px;
  border: 1px solid rgba(255,255,255,.3); border-radius: 24px;
  background: rgba(157,157,157,.2); backdrop-filter: blur(10px);
}
.sel-tag {
  position: absolute; z-index: 4; top: 14px; left: 50%; transform: translateX(-50%);
  white-space: nowrap; padding: 6px 12px; border-radius: 60px; background: rgba(107,80,57,.7);
  font-size: 15px; line-height: 22px; letter-spacing: .28px; color: #fff;
}
.sel-arrow { display: none; }
@media (min-width: 1024px) {
  .sci-media-sel { height: 640px; }
  .sel-cards { inset: 35px 35px 35px 36px; flex-direction: row; gap: 67px; }
  .sel-card { border-radius: 32px; padding: 76px 20px 20px; }
  .sel-tag { font-size: 22px; }
  .sel-arrow { display: block; position: absolute; z-index: 5; left: 50%; top: 50%; width: 42px; height: 20px; transform: translate(-50%, -50%); color: #fff; }
  .sel-arrow svg { width: 100%; height: 100%; display: block; }
}
/* 约 100 万个 CpG 位点：循环上滚的等宽网格，少量高亮 = 入选的 460 项 */
.cpg-window {
  height: 100%; overflow: hidden; margin-top: 34px; width: 100%; max-width: 470px; margin-inline: auto;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 14%, #000 82%, transparent 100%);
          mask-image: linear-gradient(180deg, transparent 0%, #000 14%, #000 82%, transparent 100%);
}
.cpg-track {
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); column-gap: 6px; row-gap: 9px;
  font-family: var(--mono); font-size: 8px; line-height: 8px; letter-spacing: .2px; color: #f2e8db;
  animation: cpgRoll 34s linear infinite;
}
.cpg-track span { padding: 1px 2px; white-space: nowrap; overflow: hidden; opacity: .82; }
.cpg-track span.hi { opacity: 1; color: #241400; background: #e9a06a; border-radius: 3px; font-weight: 500; }
@keyframes cpgRoll { from { transform: translateY(0); } to { transform: translateY(-50%); } }
/* 21 系统 × 基因符号 的倾斜标志物流 */
.bm-stream {
  height: 100%; overflow: hidden;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 12%, #000 84%, transparent 100%);
          mask-image: linear-gradient(180deg, transparent 0%, #000 12%, #000 84%, transparent 100%);
}
.bm-track { display: flex; flex-direction: column; gap: 9px; transform: rotate(-3deg); animation: bmRoll 40s linear infinite; }
.bm-row { display: flex; align-items: center; gap: 8px; white-space: nowrap; font-size: 13px; color: #f2e8db; }
.bm-row .dt { flex: 0 0 auto; width: 8px; height: 8px; border-radius: 50%; background: var(--dot, #a3d3e7); }
.bm-row b { font-weight: 400; font-size: 13px; letter-spacing: .26px; color: #f2e8db; }
.bm-row .lb { font-style: normal; font-size: 11px; letter-spacing: .2px; color: rgba(242,232,219,.42); }
.bm-row em { font-family: var(--mono); font-style: normal; font-size: 11px; letter-spacing: .2px; color: #f2e8db; opacity: .72; }
@keyframes bmRoll { from { transform: translateY(0) rotate(-3deg); } to { transform: translateY(-50%) rotate(-3deg); } }

/* ---------- 三项筛选标准卡片（标志物筛选段右栏） ---------- */
.criteria { margin-top: 6px; display: flex; flex-direction: column; gap: 14px; }
.criteria .cr { border: 1px solid rgba(147,128,112,.35); border-radius: 16px; padding: 18px 20px; background: rgba(255,255,255,.03); }
.criteria .cr b { display: block; margin-bottom: 8px; font-size: 16px; font-weight: 500; letter-spacing: .32px; color: #f1e7da; }
.criteria .cr p { font-size: 14px; line-height: 1.6; letter-spacing: .42px; color: #948071; }

/* ---------- 媒体卡 ④：21 个系统，1 个身体（原站为 Rive systems-21，此处人体图 + 自绘节点图） ---------- */
.sci-media-sys { height: 620px; padding-top: 52px; background: rgba(0,0,0,.8); }
@media (min-width: 1024px) { .sci-media-sys { height: 640px; padding-top: 0; } }
.sys-body { position: absolute; inset-block: 0; left: 50%; transform: translateX(-50%); height: 100%; aspect-ratio: 763 / 640; }
@media (min-width: 1024px) { .sys-body { left: calc(50% - 229px); transform: none; } }
.sys-body-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; opacity: .58; }
.sys-map { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.sys-map .lead { fill: none; stroke: rgba(242,232,219,.32); stroke-width: 1; }
.sys-map .nd { fill: var(--dot, #a3d3e7); }
.sys-map .halo { fill: var(--dot, #a3d3e7); opacity: .16; }
.sys-map text { fill: #f1e7da; font-size: 11px; letter-spacing: .2px; font-family: var(--font); }
.sys-map text.en { fill: rgba(242,232,219,.5); font-family: var(--mono); font-size: 9px; }

/* ---------- 媒体卡 ⑤：效果测量（原站此处就是一张现成 SVG） + 三行复测数据盒 ---------- */
.sci-media-eff { background: linear-gradient(100deg, rgba(0,0,0,.8) 0%, rgba(0,0,0,.8) 54%, rgba(18,61,81,.8) 100%); }
.sci-media-eff > img { position: relative; z-index: 1; display: block; width: 100%; height: auto; }
.eff-box { display: flex; flex-direction: column; gap: 22px; margin-top: 6px; padding: 26px 22px; border-radius: 16px; background: #070400; box-shadow: 0 0 3px rgba(242,232,219,.24); }
.eff-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.eff-l { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 500; letter-spacing: .14px; color: #fbf6ee; opacity: .72; }
.eff-l b { font-weight: 500; }
.eff-ic { position: relative; flex: 0 0 auto; width: 20px; height: 20px; border-radius: 50%; border: 1px solid rgba(251,246,238,.55); }
.eff-ic::after { content: ""; position: absolute; right: -2px; bottom: -2px; width: 9px; height: 9px; border-radius: 50%; background: #fbf6ee; opacity: .6; }
.eff-r { display: flex; align-items: baseline; gap: 8px; }
.eff-r .eq { font-size: 12px; color: #f1e7da; opacity: .7; }
.eff-val { font-size: 24px; font-weight: 400; letter-spacing: .2px; color: #fbf6ee; text-shadow: 0 0 6px rgba(242,232,225,.8); }

/* ---------- 媒体卡 ⑥：个性化（轨道环 + 人体 + 漂浮图标 + 行动方案页） ---------- */
.sci-media-plan { height: 520px; background: #070400; }
.plan-orbits { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; object-fit: cover; }
.plan-figure { position: absolute; z-index: 10; left: 38%; top: 50%; transform: translate(-50%, -50%); width: 52%; height: auto; }
.plan-bubbles { position: absolute; z-index: 20; left: 38%; top: 50%; transform: translate(-50%, -50%); width: 62%; height: 74%; pointer-events: none; border: 0; }
.plan-doc { position: absolute; z-index: 30; right: 14px; bottom: 14px; width: 30%; height: auto; border-radius: 10px; }
@media (min-width: 1024px) {
  .sci-media-plan { height: 640px; }
  /* 原站实测（卡内 1342 宽 / 640 高，卡左上角为原点）：
     figure 173,154 423×477｜bubbles 150,107 521×482｜action-plan 右 104 / 顶 35 / 401×552 */
  .plan-figure { left: 12.89%; top: 24.06%; transform: none; width: 31.52%; }
  .plan-bubbles { left: 11.18%; top: 16.72%; transform: none; width: 38.82%; height: 75.31%; }
  .plan-doc { top: 5.47%; bottom: auto; right: clamp(24px, 7.75vw, 104px); width: clamp(300px, 29.9vw, 401px); border-radius: 12px; }
}

/* 降低动效：停止所有自绘动画（噪声柱 / CpG 网格 / 标志物流） */
@media (prefers-reduced-motion: reduce) {
  .bn-bars i, .cpg-track, .bm-track { animation: none; }
}

/* ---------- science 页：科学家背书与发光 CTA 视频卡 ---------- */
.sci-people { background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0)); }
.person-row { display: flex; gap: 22px; align-items: flex-start; margin-top: 26px; }
.person-row .av { width: 88px; height: 88px; border-radius: 50%; overflow: hidden; flex: 0 0 auto; background: var(--cream-300); }
.person-row .av img { width: 100%; height: 100%; object-fit: cover; }
.person-row .nm { font-size: clamp(19px, 2.2vw, 24px); color: #fbf6ee; font-weight: 600; }
.person-row .rl { font-size: 14px; color: var(--muted-dark); margin: 4px 0 12px; }
.person-row p { font-size: 15px; line-height: 1.7; color: rgba(251,246,238,.75); }

.tint-glow { box-shadow: 0 0 80px 2px rgba(186,143,82,.8); border-radius: 32px; }
.tint-cta { background: linear-gradient(0deg, #241400 30.59%, #6b5039 60.84%, #6b5039 79.68%); }
.tint-cta .video-tint { min-height: 470px; }
.tint-cta .video-tint .tint-inner { min-height: 470px; max-width: 432px; }

/* ---------- 邮件订阅带（原站：底部对齐双栏 / 白色描边输入框 / 米色次级按钮无箭头） ---------- */
.band-row { display: flex; flex-direction: column; align-items: stretch; gap: 8px; }
@media (min-width: 1000px) { .band-row { flex-direction: row; align-items: flex-end; justify-content: space-between; gap: 40px; } }
/* 订阅带标题：原站 nk-heading-3 lg:nk-heading-1（30 → 60px），中文取 48px */
.band-title { color: #fff; margin: 0; font-size: clamp(28px, 4.2vw, 48px); }
.band-sub { display: flex; flex-direction: column; gap: clamp(8px, 1vw, 12px); }
.band-lead { color: #fff; font-size: clamp(18px, 1.7vw, 22px); font-weight: 600; margin: 0; }
.band-form { display: flex; flex-direction: column; gap: 12px; }
.band-form input {
  width: 100%; background: #fff; color: var(--brown-900); border: 0;
  outline: 1px solid #dfdbd6; border-radius: 16px; padding: 20px;
  font-family: inherit; font-size: 16px; backdrop-filter: blur(15px);
}
.band-form input::placeholder { color: #948071; }
.band-form input:focus { outline: 2px solid rgba(145,106,66,.7); }
.band-form .btn {
  width: 100%; height: 56px; padding: 8px 24px; flex: 0 0 auto;
  font-size: 14px; font-weight: 500; color: #000; background: #f1e7da;
}
@media (min-width: 640px) {
  .band-form { flex-direction: row; align-items: center; }
  .band-form input { width: 280px; flex: 0 0 auto; }
  .band-form .btn { width: 144px; height: 62px; }
}
@media (min-width: 1000px) { .band-form input { width: 320px; } }
@media (min-width: 1280px) { .band-form input { width: 445px; } }
.band-note { font-size: clamp(14px, 1.1vw, 16px); color: #fff; }

/* ---------- 页脚 Ask AI（静态展示，无任何外链） ---------- */
.ask-ai { margin-top: clamp(24px, 4vw, 40px); padding-top: 24px; border-top: 1px solid rgba(255,255,255,.14); }
.ask-ai-title { color: rgba(255,255,255,.75); font-size: 14px; margin-bottom: 12px; }
.ask-ai-row { display: flex; flex-wrap: wrap; gap: 10px; }
.ai-chip {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 16px; border-radius: 12px; background: rgba(128,168,158,.22);
  border: 1px solid rgba(128,168,158,.4); color: #cfe3de;
  font-size: 13px; font-weight: 600; letter-spacing: .02em; cursor: default;
}
.ask-ai-note { margin-top: 10px; font-size: 12px; color: rgba(255,255,255,.45); }

/* ---------- 已发表研究列表 ---------- */
.pub-list { display: grid; gap: 16px; }
.pub {
  border: 1px solid rgba(51,41,31,.14); border-radius: 20px; background: #fff;
  padding: clamp(20px, 3vw, 32px); display: grid; gap: 10px;
}
.pub .pub-tag {
  justify-self: start; font-size: 12px; font-weight: 700; letter-spacing: .06em;
  color: var(--accent-dk); background: rgba(145,106,66,.12); border-radius: 99px; padding: 4px 12px;
}
.pub h3 { font-size: clamp(17px, 2vw, 21px); line-height: 1.4; }
.pub .pub-meta { font-size: 13px; color: rgba(51,41,31,.6); }
.pub .pub-abs { font-size: 14px; line-height: 1.7; color: rgba(51,41,31,.8); }

/* ---------- 机构入驻（For Providers）表单 ---------- */
.fp-form { display: grid; gap: 14px; margin-top: 8px; }
.fp-form input, .fp-form select {
  background: #fff; color: var(--brown-900); border: 1px solid #dfdbd6;
  border-radius: 14px; padding: 14px 16px; font-family: inherit; font-size: 15px; width: 100%;
}
.fp-form input:focus, .fp-form select:focus { outline: 2px solid rgba(145,106,66,.7); }
.fp-form .btn { justify-self: start; }
.fp-note { font-size: 13px; color: rgba(51,41,31,.6); margin-top: 10px; }

/* ---------- 人物卡（创始人 / 顾问委员会） ---------- */
.person-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.person-card { border-radius: 22px; overflow: hidden; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); display: flex; flex-direction: column; }
.on-light .person-card { background: #fff; border-color: rgba(51,41,31,.12); }
.person-card .ph { aspect-ratio: 1/1; width: 100%; object-fit: cover; display: block; }
.person-card .ph.initials { display: grid; place-items: center; background: linear-gradient(140deg, #6b5039, #241400); color: rgba(245,240,232,.9); font-family: Georgia, "Times New Roman", serif; font-size: 52px; }
.on-light .person-card .ph.initials { background: linear-gradient(140deg, #e8ded2, #cbb69c); color: #5a4632; }
.person-card .meta { padding: 18px 20px 22px; display: grid; gap: 6px; }
.person-card .role { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.person-card .name { font-size: 18px; font-weight: 700; }
.person-card .bio { font-size: 13px; line-height: 1.6; color: rgba(245,240,232,.72); }
.on-light .person-card .bio { color: rgba(51,41,31,.7); }

/* ---------- Reverse 系统评分面板（providers） ---------- */
.sys-score { border-radius: 24px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); padding: clamp(20px, 3vw, 36px); display: grid; gap: 6px; }
.sys-score .row { display: grid; grid-template-columns: 70px 1fr auto; gap: 14px; align-items: center; padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.sys-score .row:last-child { border-bottom: 0; }
.sys-score .pct { font-family: Georgia, serif; font-size: 22px; color: var(--accent); }
.sys-score .nm { font-size: 15px; }
.sys-score .nm small { display: block; color: rgba(245,240,232,.6); font-size: 12px; margin-top: 2px; }
.sys-score .st { font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 99px; justify-self: end; }
.st.good { background: rgba(143,209,138,.18); color: #8fd18a; }
.st.avg { background: rgba(232,196,106,.18); color: #e8c46a; }
.st.warn { background: rgba(255,106,61,.18); color: #ff6a3d; }

/* ==========================================================================
   providers 页专用组件（尺寸 / 颜色取自原站运行时计算样式）
   ========================================================================== */

/* ---------- 主视觉：背景视频上叠暖调 multiply + 20% 黑遮罩（无渐变压暗） ---------- */
.hero-warm .hero-bg::after { background: rgba(0, 0, 0, .2); }
.hero-multiply {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: #ba8f52; mix-blend-mode: multiply;
}
/* 原站 Hero 文案在 max-w-[1440px] + px-10 的 12 栅网格里占 col-span-5（≈540px），正文 nk-text-base = 16px */
.hero-warm .hero-inner { width: min(1360px, 94vw); padding-bottom: clamp(40px, 6vw, 60px); }
.hero-warm .hero-copy { max-width: 540px; }
.hero-warm .lead { font-size: 16px; }
/* 原站主标题为 nk-heading-1 = 60px，中文取 48px（与全站 .h-xl 同档） */
.hero-warm .hero-copy h1 { font-size: clamp(30px, 4.2vw, 48px); }
.btn-hi { min-height: 56px; }
.hero-actions .btn.flex1 { flex: 1 1 auto; }
@media (max-width: 640px) { .hero-actions .btn { width: 100%; } }

/* ---------- 媒体徽标墙（深棕底 + 胶囊容器内 5 个 wordmark） ---------- */
.wordmark-sec { background: var(--ink); padding: clamp(56px, 7vw, 80px) 0; }
.wordmark-kicker { text-align: center; font-size: 14px; line-height: 1.22; color: #948071; margin-bottom: 26px; }
.wordmark-bar, .wordmark-marquee { background: #3c2616; border-radius: var(--r-pill); }
.wordmark-bar { display: flex; align-items: center; justify-content: space-around; gap: 28px; padding: 32px 40px; }
.wordmark-bar img { flex-shrink: 0; }
.wordmark-marquee { display: none; }
.wordmark-marquee .marquee-track { padding: 26px 0; }
.wordmark-marquee .marquee-track > * { padding-inline: 26px; }
@media (max-width: 900px) {
  .wordmark-bar { display: none; }
  .wordmark-marquee { display: flex; }
}

/* ---------- 受 750+ 诊所信赖 + 医生卡墙（三列竖向跑马灯） ---------- */
.wall-sec { background: var(--ink); padding: clamp(56px, 7vw, 80px) 0 clamp(64px, 9vw, 120px); }
/* 原站头部文案宽 lg:w-1/3（约 453px），按钮宽 lg:w-4/5，区块间距 lg:gap-[80px] */
.wall-head { max-width: 460px; margin: 0 auto clamp(60px, 7vw, 80px); text-align: center; display: grid; gap: 24px; justify-items: center; }
/* 原站区块标题为 nk-heading-2 = 44px，中文取 36px（与全站 .h-lg 同档） */
.wall-head h2, .gb-side h2 { font-size: clamp(24px, 3vw, 36px); }
.wall-head h2 { color: #f1e7da; }
.wall-head .sub { font-size: 15px; line-height: 1.4; color: rgba(241,231,218,.6); }
.wall-head .btn { width: 80%; margin-top: 8px; }
.clin-wall {
  display: grid; grid-template-columns: 1fr; gap: 24px;
  background: #3c2616; border-radius: 24px; padding: 32px 24px;
  height: min(915px, 86vw); overflow: hidden;
}
@media (min-width: 700px) { .clin-wall { grid-template-columns: 1fr 1fr; border-radius: 32px; padding: 32px; height: 915px; } }
@media (min-width: 1100px) { .clin-wall { grid-template-columns: repeat(3, 1fr); } }
.clin-col { overflow: hidden; height: 100%; position: relative; }
.clin-col.c2, .clin-col.c3 { display: none; }
@media (min-width: 700px) { .clin-col.c2 { display: block; } }
@media (min-width: 1100px) { .clin-col.c3 { display: block; } }
.clin-track { display: flex; flex-direction: column; animation: vmarquee var(--dur, 160s) linear infinite; }
.clin-track.rev { animation-direction: reverse; }
@keyframes vmarquee { from { transform: translateY(0); } to { transform: translateY(-50%); } }
.clin-wall:hover .clin-track { animation-play-state: paused; }
@media (prefers-reduced-motion: reduce) { .clin-track { animation: none; } }
.clin-card {
  flex-shrink: 0; margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,.3); border-radius: 16px;
  background: rgba(157,157,157,.2); backdrop-filter: blur(15px);
  padding: 30px 28px; display: flex; flex-direction: column; gap: 22px;
}
.clin-card .avatar {
  width: 132px; height: 132px; border-radius: 50%; flex-shrink: 0;
  border: 1px solid rgba(255,255,255,.3); background: rgba(157,157,157,.2);
  backdrop-filter: blur(15px); display: grid; place-items: center; overflow: hidden;
}
.clin-card .avatar img { width: 116px; height: 116px; border-radius: 50%; object-fit: cover; }
.clin-card .nm { font-size: 18px; line-height: 1.22; color: #f1e7da; }
.clin-card .tt { font-size: 15px; line-height: 1.3; color: rgba(241,231,218,.72); }
.clin-card.quote { gap: 18px; }
.clin-card.quote .qmark { font-family: Georgia, "Times New Roman", serif; font-size: 40px; line-height: .4; color: rgba(241,231,218,.55); }
.clin-card.quote .qt { font-size: 19px; line-height: 1.35; color: #f1e7da; }
.clin-card.quote .nm { margin-top: 12px; }

/* ---------- Going Beyond（左玻璃卡 + 右 01/02/03 切换列表） ---------- */
.gb-sec {
  padding: clamp(56px, 7vw, 80px) 0 clamp(64px, 12vw, 160px);
  background: linear-gradient(180deg, #241400 17.02%, #6b5039 67.15%, #6b5039 98.35%), #6b5039;
}
/* 原站：12 栅网格，玻璃卡占 1-6 栏，文案列 ≥1280 占 8-11 栏（1000-1279 占 7-12 栏），栅间距 lg:gap-8 */
.gb-grid { display: grid; gap: 60px; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 1000px) {
  .gb-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 32px; }
  .gb-card { grid-column: 1 / span 6; }
  .gb-side { grid-column: 7 / span 6; }
}
@media (min-width: 1280px) { .gb-side { grid-column: 8 / span 4; } }
.gb-card {
  position: relative; aspect-ratio: 287 / 192; border-radius: 16px; overflow: hidden;
  border: 1px solid rgba(255,255,255,.3); background: rgba(157,157,157,.2);
  backdrop-filter: blur(15px); display: grid;
}
.gb-pane { grid-area: 1 / 1; position: relative; display: grid; place-items: center; opacity: 0; visibility: hidden; transition: opacity .5s var(--ease); }
.gb-pane.is-on { opacity: 1; visibility: visible; }
.gb-pane img { width: 100%; height: 100%; object-fit: cover; }
.gb-chart { width: 100%; height: 100%; }
.gb-chart .ax, .gb-chart .cross { stroke: rgba(255,255,255,.45); stroke-width: 1; }
.gb-chart .curve { fill: none; stroke: url(#gbCurve); stroke-width: 3; stroke-linecap: round; }
.gb-chart .linear { fill: none; stroke: rgba(255,255,255,.28); stroke-width: 1.5; stroke-dasharray: 5 6; }
.gb-chart .node { fill: #f0c755; }
.gb-chart .ylab, .gb-chart .xlab { fill: rgba(255,255,255,.7); font-size: 15px; text-anchor: middle; }
.plateau {
  position: absolute; z-index: 2; left: 42%; top: 26%;
  padding: 6px 14px; border-radius: var(--r-pill);
  border: 1px solid rgba(255,255,255,.45); background: rgba(244,239,231,.9);
  color: #3a2a1c; font-size: 12px; font-weight: 600;
}
/* 原站右列容器 gap-6 lg:gap-[60px]，仅 h2 与切换列表两项 */
.gb-side { display: grid; gap: clamp(24px, 5vw, 60px); align-content: center; }
.gb-side h2 { color: #f1e7da; }
.gb-tabs { display: grid; }
.gb-tab {
  display: flex; align-items: center; gap: 26px; text-align: left;
  padding: clamp(20px, 2.4vw, 30px) 0; position: relative; opacity: .35;
  transition: opacity .35s var(--ease);
}
.gb-tab::after { content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%; background: rgba(255,255,255,.35); }
.gb-tab::before {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 75%;
  background: #fff; opacity: 0; transition: opacity .35s var(--ease);
}
.gb-tab.is-on { opacity: 1; }
.gb-tab.is-on::before { opacity: 1; }
.gb-tab .no { font-size: 18px; }
.gb-tab .t { font-size: clamp(20px, 2.4vw, 30px); font-weight: 600; letter-spacing: -.01em; color: #fff; }

/* 原站窄屏 DOM 顺序为“先文案后卡片” */
@media (max-width: 999px) { .gb-side { order: -1; } }

/* 系统评分轮播（原站为玻璃卡内居中的单卡，带同心圆呼吸背景） */
.sys-rings {
  position: absolute; width: min(300px, 74%); aspect-ratio: 1; border-radius: 50%;
  border: 1px solid rgba(244,239,231,.55);
  box-shadow: 0 0 0 22px rgba(244,239,231,.06), 0 0 0 46px rgba(244,239,231,.04);
  animation: breathe 6s var(--ease) infinite;
}
@keyframes breathe { 0%, 100% { transform: scale(1); opacity: .7; } 50% { transform: scale(1.08); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .sys-rings { animation: none; } }
.sys-stage { position: relative; width: 100%; height: 100%; display: grid; place-items: center; }
.sys-slide {
  grid-area: 1 / 1; display: grid; justify-items: center; gap: 18px;
  opacity: 0; transform: scale(.82); visibility: hidden;
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.sys-slide.is-on { opacity: 1; transform: none; visibility: visible; }
/* 注意：这里的自定义属性叫 --pill / --dot，由每张 sys-slide 内联给定；
   不可复用 --ink 等全局令牌名，否则会拿到全站棕黑背景色 */
.sys-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: var(--r-pill);
  border: 1px solid var(--pill, #54869b); background: #f4efe7; color: var(--pill, #54869b);
  font-size: 13px; font-weight: 600;
}
.sys-pill i { width: 10px; height: 10px; border-radius: 50%; background: var(--dot); display: block; }
.sys-slide .pct { font-size: clamp(30px, 4.6vw, 48px); font-weight: 700; color: #f5f5f5; line-height: 1; }
.sys-slide .nm { font-size: clamp(14px, 1.6vw, 18px); font-weight: 600; color: #f0f0f0; }
.sys-slide .sa { font-size: clamp(12px, 1.3vw, 15px); font-weight: 600; color: #bfbfbf; }

/* ---------- 背书引言卡 ---------- */
.endorse-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.endorse { border-radius: 22px; padding: 26px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); display: grid; gap: 16px; align-content: start; }
.on-light .endorse { background: #fff; border-color: rgba(51,41,31,.12); }
.endorse q { font-family: Georgia, "Times New Roman", serif; font-size: 17px; line-height: 1.6; }
.endorse .who { display: grid; gap: 2px; }
.endorse .who b { font-size: 15px; }
.endorse .who span { font-size: 12px; color: rgba(245,240,232,.6); }
.on-light .endorse .who span { color: rgba(51,41,31,.6); }

/* ---------- 使命大字（原站为 nk-heading-3 = 30px 的大字引言，中文取 28px 档） ---------- */
.mission { font-family: Georgia, "Times New Roman", serif; font-size: clamp(20px, 2.4vw, 28px); line-height: 1.45; }

/* ---------- 带海报背景的页头（about / providers） ---------- */
.page-head.poster { position: relative; overflow: hidden; }
.page-head.poster .poster-bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center; z-index: 0;
}
.page-head.poster::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(20,14,8,.72) 0%, rgba(20,14,8,.42) 45%, rgba(20,14,8,.86) 100%);
}
.page-head.poster .container { position: relative; z-index: 2; }

/* ---------- 使命双栏 ---------- */
.mission-split {
  display: grid; gap: clamp(20px, 3vw, 40px);
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  align-items: start;
}
.mission-split .mission { color: var(--txt-on-light); }
.on-dark .mission-split .mission { color: var(--txt-on-dark); }
@media (max-width: 860px) { .mission-split { grid-template-columns: 1fr; } }

/* ---------- 宽容器（原站内容宽 max-w-[1440px] + px-10，比全站 .container 宽一档） ---------- */
.container.wide { width: min(1360px, 94vw); }

/* ---------- providers：同行评审论文（左 4 栏标题 + 右 7 栏横向轮播） ---------- */
.papers-sec { background: #6a5039; padding: clamp(56px, 7vw, 80px) 0; overflow: hidden; }
.papers-grid { display: grid; gap: 40px; position: relative; }
@media (min-width: 1000px) { .papers-grid { grid-template-columns: repeat(12, 1fr); align-items: stretch; } }
.papers-head { display: grid; gap: 18px; align-content: space-between; text-align: center; position: relative; z-index: 2; }
@media (min-width: 1000px) { .papers-head { grid-column: 1 / span 4; text-align: left; } }
.papers-head h2 { color: #d9cbb8; font-size: clamp(24px, 3vw, 36px); font-weight: 400; line-height: 1.24; }
.papers-head p { font-size: clamp(15px, 1.2vw, 18px); color: #f1e7da; }
/* 左侧渐隐遮罩：让轮播卡向左「溶」进背景色（原站 hidden lg:block） */
.papers-fade { display: none; }
@media (min-width: 1000px) {
  .papers-fade {
    display: block; position: absolute; z-index: 1; left: 0; right: 50%; top: 0; bottom: 0; pointer-events: none;
    background: linear-gradient(270deg, rgba(107, 80, 57, 0) 0%, #6b5039 59.62%);
  }
}
/* 轮播列不设 z-index，让左侧渐隐遮罩能盖在卡片上（原站卡列也是 static） */
.papers-body { position: relative; }
@media (min-width: 1000px) { .papers-body { grid-column: 6 / span 7; } }
.papers-nav { display: flex; justify-content: flex-end; gap: 10px; margin-bottom: 22px; }
.pn-btn {
  width: 38px; height: 38px; border-radius: var(--r-pill); display: grid; place-items: center;
  border: 1px solid rgba(255, 255, 255, .2); background: rgba(157, 157, 157, .2);
  backdrop-filter: blur(15px); color: #948071;
  box-shadow: inset 0 0 10px 0 rgba(0, 0, 0, .5); transition: color .2s, opacity .2s;
}
.pn-btn:hover { color: #fff; }
.pn-btn[disabled] { opacity: .5; pointer-events: none; }
.papers-rail { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
.papers-rail::-webkit-scrollbar { display: none; }
/* 玻璃外框（原站 rounded-xl + p-4）包裹竖版期刊封面 */
.paper-frame {
  flex: 0 0 auto; scroll-snap-align: start; border-radius: 12px; padding: 12px;
  border: 1px solid rgba(255, 255, 255, .3); background: rgba(157, 157, 157, .2); backdrop-filter: blur(15px);
}
@media (min-width: 1000px) { .paper-frame { padding: 16px; } }
.paper-card {
  width: 283px; aspect-ratio: 283 / 422; border-radius: 24px; overflow: hidden; padding: 28px;
  display: flex; flex-direction: column; justify-content: space-between; color: #fff; isolation: isolate;
  background-color: #2a2118; background-size: cover; background-position: center;
}
@media (min-width: 1000px) { .paper-card { width: 364px; padding: 32px; } }
.paper-card::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(0, 0, 0, .35) 0%, rgba(0, 0, 0, 0) 39.42%, rgba(0, 0, 0, .4) 100%),
              linear-gradient(0deg, rgba(0, 0, 0, .6) 0%, rgba(0, 0, 0, .6) 100%);
}
.paper-card .journal { font-size: 12px; }
@media (min-width: 1000px) { .paper-card .journal { font-size: 16px; } }
.paper-card h3 { font-size: 20px; line-height: 1.16; margin-bottom: 12px; }
@media (min-width: 1000px) { .paper-card h3 { font-size: 24px; } }
.paper-card .sum { font-size: 13px; line-height: 1.45; color: rgba(255, 255, 255, .86); }
@media (min-width: 1000px) { .paper-card .sum { font-size: 16px; } }
.paper-card .rd {
  display: inline-flex; align-items: center; gap: 14px; margin-top: 20px;
  font-size: 13px; color: #d9cbb8; transition: opacity .3s;
}
@media (min-width: 1000px) { .paper-card .rd { font-size: 16px; } }
.paper-card .rd:hover { opacity: .7; }

/* ---------- providers：我们的检测揭示什么（整版图文卡，产品截图压在照片右下） ---------- */
.reveal-sec { background: #6a5039; }
.rev-col { display: grid; gap: clamp(60px, 7vw, 80px); }
.rev-head { display: grid; gap: 20px; justify-items: center; text-align: center; }
.rev-head .eyebrow { color: #948071; margin: 0; }
.rev-head h2 { color: #d9cbb8; font-size: clamp(24px, 3vw, 36px); line-height: 1.22; letter-spacing: -.3px; font-weight: 400; }
.rev-head p { font-size: clamp(15px, 1.2vw, 18px); color: #f1e7da; max-width: 450px; }
.rev-block {
  position: relative; display: flex; flex-direction: column; justify-content: space-between;
  height: 500px; border-radius: 24px; overflow: hidden; padding: 16px; isolation: isolate;
  background-color: #241a11; background-size: cover; background-position: center;
}
@media (min-width: 1000px) { .rev-block { height: 820px; padding: 32px; } }
.rev-block::before { content: ""; position: absolute; inset: 0; z-index: -1; background: rgba(0, 0, 0, .2); }
.rev-block.glow { box-shadow: 0 0 80px 2px rgba(145, 106, 66, .4); }
.rev-copy { display: grid; gap: 16px; padding: 20px; max-width: 420px; }
@media (min-width: 1000px) { .rev-copy { padding: 28px; } }
.rev-copy h3 { color: #d9cbb8; font-size: clamp(22px, 3vw, 36px); line-height: 1.22; letter-spacing: -.3px; font-weight: 400; }
.rev-copy p { font-size: clamp(15px, 1.2vw, 18px); line-height: 1.5; color: #fff; }
.rev-shot { align-self: flex-end; width: 56%; border-radius: 12px; backdrop-filter: blur(15px); }
.rev-shot.s3 { align-self: flex-start; width: 50%; }
@media (min-width: 1000px) {
  .rev-shot { width: auto; }
  .rev-shot.s1 { width: 600px; }
  .rev-shot.s2 { width: 585px; }
  .rev-shot.s3 { width: 400px; align-self: flex-end; }
}

/* ---------- providers：SystemAge™ 专利 + 大家背书（玻璃容器内横向轮播） ---------- */
.sa-sec {
  padding: clamp(56px, 7vw, 80px) 0 clamp(60px, 8vw, 100px);
  background: linear-gradient(0deg, #241400 9.86%, rgba(36, 20, 0, .6) 23.66%, #6b5039 50%);
}
.sa-col { display: grid; gap: clamp(60px, 8vw, 100px); }
.sa-head { display: grid; gap: clamp(42px, 5vw, 80px); justify-items: center; text-align: center; max-width: 800px; margin-inline: auto; }
/* 原站 nk-heading-2 = 44px，中文取 36px 档（与全站 .h-lg 同档），展示型标题一律 400 字重 */
.sa-head h2, .sa-sub { color: #d9cbb8; font-size: clamp(24px, 3vw, 36px); line-height: 1.22; font-weight: 400; letter-spacing: -.3px; }
.sa-backed { display: grid; gap: 24px; justify-items: center; }
.bk-lbl { color: #fff; font-size: clamp(15px, 1.2vw, 18px); }
.bk-logos { display: flex; align-items: center; gap: 16px; }
.bk-logos img { opacity: .55; }
.sa-wall {
  border: 1px solid rgba(255, 255, 255, .3); border-radius: 24px; padding: 16px 0; overflow: hidden;
  background: rgba(157, 157, 157, .2); backdrop-filter: blur(15px);
}
.sa-track { align-items: stretch; animation-duration: var(--dur, 36s); }
.tcard {
  position: relative; flex-shrink: 0; margin-right: 16px; width: 260px; aspect-ratio: 234 / 322;
  border: 1px solid rgba(255, 255, 255, .3); border-radius: 16px; overflow: hidden; isolation: isolate; cursor: pointer;
  background-color: #2a2118; background-size: cover; background-position: center; backdrop-filter: blur(15px);
}
@media (min-width: 1000px) { .tcard { width: 384px; aspect-ratio: 384 / 493; } }
.tcard-bar {
  position: absolute; inset: auto 0 0 0; height: 120px; display: grid; align-content: end; gap: 8px; padding: 16px;
  backdrop-filter: blur(6.25px); background: linear-gradient(0deg, rgba(0, 0, 0, .3) 0%, rgba(102, 102, 102, 0) 74.22%);
}
@media (min-width: 1000px) { .tcard-bar { height: 150px; gap: 16px; padding: 32px; } }
.tcard-bar .nm { font-size: 18px; color: #f1e7da; }
.tcard-bar .tt { font-size: 13px; line-height: 1.35; color: #f1e7da; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
@media (min-width: 1000px) { .tcard-bar .nm { font-size: 22px; } .tcard-bar .tt { font-size: 16px; } }
.tcard-over {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end; gap: 24px; padding: 16px;
  background: #948071; backdrop-filter: blur(15px); transform: translateY(100%); transition: transform .5s var(--ease);
}
@media (min-width: 1000px) { .tcard-over { gap: 32px; padding: 32px; } }
.tcard:hover .tcard-over, .tcard:focus-within .tcard-over, .tcard.is-open .tcard-over { transform: none; }
.tcard .avatar {
  width: 80px; height: 80px; border-radius: 50%; overflow: hidden; display: grid; place-items: center; flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, .3); background: rgba(157, 157, 157, .2); backdrop-filter: blur(15px);
}
@media (min-width: 1000px) { .tcard .avatar { width: 102px; height: 102px; } }
.tcard .avatar img { width: 100%; height: 100%; object-fit: cover; }
.tcard q { font-size: 13px; line-height: 1.45; color: #f1e7da; }
@media (min-width: 1000px) { .tcard q { font-size: 20px; } }
.tcard .who { display: grid; gap: 8px; }
.tcard .who b { font-size: 15px; font-weight: 400; color: #f1e7da; }
.tcard .who span { font-size: 13px; color: rgba(241, 231, 218, .82); }
@media (min-width: 1000px) { .tcard .who b { font-size: 20px; } .tcard .who span { font-size: 16px; } }

/* ---------- 人物图卡（about：创始人 / 顾问委员会，文字叠加在照片上） ---------- */
.figure-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.figure-card {
  position: relative; border-radius: 20px; overflow: hidden; aspect-ratio: 288/427;
  border: 1px solid rgba(255,255,255,.3); background: rgba(145,106,66,.5); isolation: isolate;
}
.figure-card.wide { aspect-ratio: 283/380; }
.figure-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.figure-card::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(102,102,102,0) 45%, rgba(20,14,8,.88) 100%);
}
.figure-card .role {
  position: absolute; top: 16px; left: 16px; z-index: 1;
  font-size: 12px; font-weight: 600; letter-spacing: .04em; color: var(--cream-100);
}
.figure-card .body {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 1;
  padding: clamp(16px, 2.2vw, 26px); display: grid; gap: 8px;
}
.figure-card .name { font-family: Georgia, "Times New Roman", serif; font-size: clamp(18px, 2.1vw, 24px); color: var(--cream-100); }
.figure-card .bio { font-size: 13px; line-height: 1.6; color: rgba(245,240,232,.82); }

/* ---------- 原则卡（about：Our Scientific Principles） ---------- */
.principle-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.principle-card {
  border: 1px solid rgba(51,41,31,.22); border-radius: 20px;
  padding: clamp(18px, 2.4vw, 28px); min-height: 300px;
  display: flex; flex-direction: column; justify-content: space-between; gap: 24px;
}
.principle-card .ico { width: 44px; height: 44px; color: var(--brown-600); }
.principle-card h3 { font-size: 19px; margin-bottom: 8px; }
.principle-card p { font-size: 14px; line-height: 1.65; color: rgba(51,41,31,.75); }

/* ---------- 资方 / 媒体徽标盒 ---------- */
.logo-box-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.logo-box {
  border: 1px solid rgba(51,41,31,.22); border-radius: 24px;
  min-height: 78px; display: grid; place-items: center; padding: 16px 22px;
  font-family: Georgia, "Times New Roman", serif; font-size: clamp(17px, 2vw, 22px);
  color: rgba(51,41,31,.72); text-align: center;
}
.on-dark .logo-box { border-color: rgba(245,240,232,.2); color: rgba(245,240,232,.75); }
.logo-box.sans { font-family: inherit; font-weight: 800; letter-spacing: .14em; font-size: clamp(14px, 1.6vw, 18px); }

/* ---------- 双栏：标签 + 内容（As featured in / Backed by） ---------- */
.row-split {
  display: grid; gap: clamp(18px, 3vw, 34px);
  grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); align-items: center;
}
.row-split > .lbl { font-size: 17px; color: rgba(51,41,31,.72); }
.on-dark .row-split > .lbl { color: rgba(245,240,232,.72); }
@media (max-width: 860px) {
  .row-split { grid-template-columns: 1fr; }
  .row-split > .lbl { text-align: center; }
}

/* ---------- 全幅视频带（about：使命 / 尾部 CTA） ---------- */
.video-band { position: relative; overflow: hidden; isolation: isolate; }
.video-band .band-media {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center; z-index: -2;
}
/* 上述变体仅适用于 about 页的 on-dark 视频带（带暗色遮罩 + 居中内容）；
   邮件订阅带（无 .on-dark）保持上方“底部对齐 / 无遮罩”的原站样式 */
.video-band.on-dark::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(20,14,8,.78) 0%, rgba(20,14,8,.5) 50%, rgba(20,14,8,.86) 100%);
}
.video-band.tint::after {
  background: linear-gradient(180deg, rgba(107,79,53,.72) 0%, rgba(36,21,5,.84) 100%);
}
.video-band .container { position: relative; z-index: 1; }
.video-band.on-dark .band-inner {
  min-height: clamp(300px, 44vw, 500px);
  display: flex; flex-direction: column; justify-content: center; gap: 18px;
  padding: clamp(48px, 7vw, 96px) 0;
}
.video-band .band-inner.center { align-items: center; text-align: center; }

/* ==========================================================================
   产品页 /the-systemage-test 对齐原站的专属组件
   ========================================================================== */

/* ---------- 每份检测盒包含（原站第 1 段：仅 ≥1024px 呈现，与原站一致） ---------- */
.kit-inc { display: none; position: relative; background: #fbf6ee; }
@media (min-width: 1024px) { .kit-inc { display: block; } }
/* 下半段渐变：把米色盒体压向下一段的 #241400，形成原站的莫萍过渡 */
.kit-fade {
  position: absolute; left: 0; right: 0; bottom: 0; height: 50%; pointer-events: none;
  background: linear-gradient(0deg, #241400 12.02%, rgba(36,20,0,.6) 32.69%, #fbf6ee 100%);
}
/* 内容容器必须 own relative：原站 div.tonik-container 带 relative，
   且 DOM 排在渐变层之后，因此卡片绘制在渐变之上；漏掉它会被不透明米色洗白 */
.kit-in { position: relative; max-width: 1440px; margin: 0 auto; padding: 40px 40px; }
@media (min-width: 1280px) { .kit-in { padding: 71px 40px; } }
/* 盒体：原站 py-10 lg:px-4 xl:px-10 / gap-6 xl:gap-16（实测 1422px 下 pad=40 全向、gap=64） */
.kit-box { background: #f2e8db; border-radius: 32px; padding: 40px 16px; display: flex; flex-direction: column; gap: 24px; }
@media (min-width: 1280px) { .kit-box { padding: 40px; gap: 64px; } }
/* 区块标题为原站 nk-heading-2 = 44px/400/#73695C，中文取 36px；行高不能沿用 1.02，否则中文上下行切边 */
.kit-box h2 { font-weight: 400; font-size: clamp(24px, 3vw, 36px); line-height: 1.22; letter-spacing: -.3px; color: #73695c; }
/* 网格：原站 lg:gap-4 xl:gap-9 */
.kit-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
@media (min-width: 1280px) { .kit-grid { gap: 36px; } }
.kit-card {
  position: relative; width: 100%; aspect-ratio: 297 / 423; border-radius: 32px; overflow: hidden;
  /* 图片路径写在元素内联 style 的 background-image 上（与原站一致）；
     不能走 --bg 自定义属性：Chrome 会把自定义属性里的相对 url() 按引用它的样式表目录解析，导致 404 */
  background-size: 100% auto; background-position: center; background-repeat: no-repeat;
}
/* 棕色叠加层（mix-blend-screen）：自上而下的原站同款渐变 */
.kc-tint { position: absolute; inset: 0; mix-blend-mode: screen; background: linear-gradient(180deg, rgba(145,106,66,0) 26.83%, rgba(145,106,66,.6) 66.97%); }
.kc-dim { position: absolute; inset: 0; background: rgba(0,0,0,.4); opacity: 0; transition: opacity .5s; }
.kit-card:hover .kc-dim { opacity: 1; }
.kc-body { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end; gap: 16px; padding: 24px; }
.kc-body h3 { color: #fff; font-weight: 400; font-size: 22px; line-height: 1.25; }
/* 释义平时折叠（max-h-0），悬停时展开 128px，带 300ms 延迟 */
.kc-reveal { max-height: 0; overflow: hidden; width: 100%; transition: max-height .5s var(--ease) .3s; }
.kit-card:hover .kc-reveal { max-height: 128px; }
.kc-reveal p { color: rgba(255,255,255,.9); font-size: 14px; line-height: 22px; }
.kc-beta {
  position: absolute; top: 16px; left: 16px; padding: 4px 12px; border-radius: 56px;
  font-size: 12px; letter-spacing: .7px; color: #fff; background: rgba(157,157,157,.2);
  border: 1px solid rgba(255,255,255,.3); -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px);
}

/* ---------- 身体图片图层特效（原站第 4 段：虚线圆环 + 人体 + 系统卡片图层） ---------- */
.body-sec { background: #241400; position: relative; overflow: hidden; }
.body-in { max-width: 1440px; margin: 0 auto; padding: 80px 0; display: flex; flex-direction: column; align-items: center; position: relative; }
.body-top { width: 100%; padding: 0 16px; }
.b-cap { display: block; font-size: 15px; letter-spacing: .48px; color: #938070; }
.body-top h2 { margin-top: 24px; font-weight: 400; font-size: clamp(28px, 4.2vw, 48px); line-height: 1.16; color: #fbf6ee; }
.body-top h2 span { display: block; }
.body-top h2 span + span { margin-top: 8px; }
.body-fig { position: relative; width: 100%; max-width: 400px; aspect-ratio: 1 / 1; margin: 60px auto 145px; }
.bf-rings { position: absolute; top: -80px; left: 0; width: 100%; }
.bf-human { position: relative; width: 100%; }
.bf-cards { display: none; }
.bf-cards-m { position: absolute; left: 50%; transform: translateX(-50%); bottom: -145px; width: 230px; }
.body-bottom { margin-top: 32px; width: 100%; padding: 0 16px; display: flex; flex-direction: column; align-items: center; gap: 18px; text-align: center; }
/* 66px 玻璃圆 + 内嵌白圆（原站 p-2）+ 18×28 品牌标记 */
.bc-logo { position: relative; width: 66px; height: 66px; border-radius: 50%; padding: 8px; flex: none; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.3); background: rgba(157,157,157,.2); }
.bc-logo::after { content: ""; position: absolute; inset: 9px; border-radius: 50%; background: #fff; }
.bc-logo img { position: relative; z-index: 1; width: 18px; height: 28px; }
.body-bottom p { color: #938070; font-size: 15px; line-height: 22px; max-width: 420px; }
@media (min-width: 768px) {
  .body-fig { max-width: 600px; margin-bottom: 40px; }
  .bf-rings { top: -120px; }
  .bf-cards-m { bottom: -40px; }
}
@media (min-width: 1024px) {
  .body-top { position: absolute; padding: 0 40px; }
  .body-fig { width: 634px; max-width: unset; margin: 0; }
  .bf-cards-m { display: none; }
  .bf-cards { display: block; position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 232px; }
  .body-bottom { position: absolute; bottom: 134px; flex-direction: row; text-align: left; padding: 0 40px; margin-top: 0; }
}

/* ---------- 效果测量（原站第 5 段：21 列旋转点阵 + 深棕面板） ---------- */
.reveal-sec { background: #241400; padding: 80px 16px; }
.reveal-in { max-width: 1440px; margin: 0 auto; }
.reveal-head { display: flex; flex-direction: column; align-items: center; text-align: center; }
.reveal-head h2 { margin-top: 16px; color: #fff; font-weight: 400; font-size: clamp(28px, 4.2vw, 48px); line-height: 1.16; }
.reveal-head p { margin-top: 16px; max-width: 460px; color: rgba(251,246,238,.6); font-size: 17px; line-height: 26px; }
/* 与原站 .secondary-button 同参（全站另一处同名样式见 .pcard-btn） */
.btn-sample {
  display: flex; align-items: center; justify-content: center; gap: 4px; width: max-content;
  height: 44px; padding: 8px 24px; margin: 24px auto 0; border-radius: 999px;
  font-size: 14px; font-weight: 500; color: #000;
  background: linear-gradient(0deg, rgba(255,255,255,.75), rgba(255,255,255,.75)), rgba(157,157,157,.2);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.3);
  -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px); transition: background .3s;
}
.btn-sample:hover { background: linear-gradient(0deg, #fff, #fff), rgba(157,157,157,.2); }
.btn-sample .arr { color: #243de0; transition: transform .3s var(--ease); }
.btn-sample:hover .arr { transform: translateX(5px); }
.reveal-panel { position: relative; margin-top: 40px; background: #3d2616; border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; }
.rp-media { position: relative; aspect-ratio: 286 / 265; padding: 0 16px 16px; display: flex; flex-direction: column; justify-content: flex-end; }
.rp-media > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.rp-glass {
  position: relative; display: flex; flex-direction: column; align-items: center; gap: 16px;
  padding: 16px 8px; border-radius: 8px; border: .5px solid rgba(255,255,255,.3); background: rgba(157,157,157,.2);
  -webkit-backdrop-filter: blur(7.5px); backdrop-filter: blur(7.5px);
}
.rp-glass .rg-t { color: #fff; font-size: 15px; }
.rp-steps { padding: 32px 16px; display: flex; flex-direction: column; gap: 32px; }
.rp-step { display: flex; flex-direction: column; gap: 16px; }
.rs-h { display: flex; align-items: center; gap: 8px; }
.rs-n {
  width: 24px; height: 24px; border-radius: 50%; flex: none; display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,.3); color: #fff; font-size: 14px; background: transparent;
  box-shadow: inset 0 0 10px rgba(0,0,0,.2);
}
.rp-step:nth-child(1) .rs-n { background: #916a42; }
.rp-step:nth-child(2) .rs-n { background: rgba(145,106,66,.33); }
.rp-step h3 { color: #fff; font-weight: 400; font-size: 20px; line-height: 1.3; }
.rp-step p { color: #938070; font-size: 15px; line-height: 24px; }
.noise-pill {
  position: absolute; top: 16px; left: 50%; transform: translateX(-50%);
  padding: 8px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,.3);
  background: rgba(157,157,157,.2); color: #fff; font-size: 16px; white-space: nowrap;
  -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px);
}
@media (min-width: 768px) {
  .reveal-panel { flex-direction: row-reverse; }
  .rp-media { width: 50%; }
  .rp-steps { width: 50%; }
}
@media (min-width: 1024px) {
  .reveal-sec { padding: 64px 40px; }
  .btn-sample { margin-top: 32px; }
  .reveal-panel { margin-top: 80px; }
  .rp-media { padding: 0 32px 32px; }
  .rp-steps { padding: 72px 64px; gap: 96px; }
  .rp-step { width: 374px; }
  .rs-h { gap: 20px; }
  .rs-n { width: 44px; height: 44px; font-size: 18px; }
  .noise-pill { top: 80px; }
}

/* 21 列 × 5 点旋转点阵：列做 rotateX、列内每点做反向 rotateX，逐列 0.1s 延迟形成球面波 */
.noise-grid { display: flex; justify-content: space-around; width: 100%; height: 50px; padding: 8px 4px; }
.ng-col {
  display: flex; flex-direction: column; align-items: center; justify-content: space-between; height: 100%;
  transform-style: preserve-3d; animation: rotateX 4s linear infinite; animation-delay: calc(var(--i) * .1s);
}
.ng-col > i {
  flex: none; width: 5px; height: 5px; border-radius: 50%; background: #fff;
  transform-style: preserve-3d; animation: counterRotate 4s linear infinite; animation-delay: calc(var(--i) * .1s);
}
.ng-col.hi > i:first-child { background: #916a42; }
@keyframes rotateX { from { transform: rotateX(0deg); } to { transform: rotateX(360deg); } }
@keyframes counterRotate { from { transform: rotateX(0deg); } to { transform: rotateX(-360deg); } }
@media (min-width: 768px) {
  .noise-grid { height: 80px; padding: 16px 8px; }
  .ng-col > i { width: 7px; height: 7px; }
}
@media (min-width: 1024px) {
  .noise-grid { height: 120px; }
  .ng-col > i { width: 10px; height: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .ng-col, .ng-col > i { animation: none; }
}

/* ---------- 横向对比表：SystemAge™ / 传统实验室 / 生物钟 ---------- */
.cmp { display: grid; gap: 12px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cmp .cmp-col { border-radius: 18px; overflow: hidden; border: 1px solid rgba(145,106,66,.18); background: #fff; }
.cmp .cmp-col.hero-col { border-color: var(--accent); box-shadow: 0 18px 44px rgba(185,50,18,.16); }
.cmp .cmp-head { padding: 18px 18px 14px; border-bottom: 1px solid rgba(145,106,66,.14); }
.cmp .cmp-head .nm { font-size: 17px; color: var(--brown-900); font-weight: 600; }
.cmp .cmp-head .tg { font-size: 12px; color: var(--muted-light); letter-spacing: .08em; text-transform: uppercase; }
.cmp .cmp-row { padding: 14px 18px; border-bottom: 1px solid rgba(145,106,66,.1); display: flex; gap: 10px; align-items: flex-start; min-height: 84px; }
.cmp .cmp-row:last-child { border-bottom: 0; }
.cmp .cmp-row .k { font-size: 12px; color: var(--muted-light); letter-spacing: .06em; text-transform: uppercase; flex: 0 0 100%; }
.cmp .cmp-row .v { font-size: 14px; color: var(--brown-900); line-height: 1.55; }
.cmp .ic { flex: 0 0 auto; width: 18px; height: 12px; margin-top: 4px; }
.cmp .ic.ok { color: var(--olive); }
.cmp .ic.no { color: #b3a99d; }
/* BETA 角标：对比表与三步流程通用 */
.beta-tag {
  display: inline-block; margin-left: 6px; font-size: 10px; letter-spacing: .1em;
  padding: 2px 7px; border-radius: 99px; background: rgba(217,62,26,.12); color: var(--accent-dk);
}
.cmp .cmp-row-lbl { display: block; margin-bottom: 4px; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted-light); }
@media (max-width: 860px) { .cmp { grid-template-columns: 1fr; } }

/* ---------- 三步流程（产品页：图 + 序号 + 标题） ---------- */
.how-grid { display: grid; gap: 18px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.how-grid .how {
  border-radius: 20px; overflow: hidden; background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14); display: flex; flex-direction: column;
}
.how-grid .how img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; }
.how-grid .how .hc { padding: 18px 20px 22px; display: flex; gap: 12px; align-items: flex-start; }
.how-grid .how .hn { font-size: 12px; letter-spacing: .1em; color: var(--muted-dark); padding-top: 3px; }
.how-grid .how .ht { color: var(--cream-100); font-size: 17px; line-height: 1.4; }
@media (max-width: 860px) { .how-grid { grid-template-columns: 1fr; } }

/* ---------- 适用人群 + 订购面板 ---------- */
.who-panel {
  background: #f2e8db; border-radius: 32px; padding: clamp(26px, 4vw, 48px);
  display: grid; gap: 20px; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
  align-items: center; color: var(--brown-900);
}
.who-panel .wt { font-size: clamp(19px, 2.3vw, 26px); line-height: 1.4; }
.who-panel .btn { justify-self: start; }
@media (max-width: 860px) { .who-panel { grid-template-columns: 1fr; } }

/* ---------- 用户评价（圆形头像 + 引言） ---------- */
.q-grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.q-card {
  border-radius: 20px; padding: 24px; background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14); display: grid; gap: 16px; align-content: start;
}
.q-card .qtext { color: var(--cream-100); font-size: 15px; line-height: 1.75; }
.q-card .qwho { display: flex; gap: 12px; align-items: center; }
.q-card .qwho img { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.q-card .qwho .qn { color: var(--cream-100); font-size: 14px; }
.q-card .qwho .qr { color: var(--muted-dark); font-size: 12px; }
.q-card.expert { grid-column: span 2; background: rgba(145,106,66,.16); }
@media (max-width: 700px) { .q-card.expert { grid-column: span 1; } }

/* ---------- 讲者视频（原站第 2/3 段：16/9 自定控件播放器，不自动播放） ---------- */
.talk { background: #241400; position: relative; overflow: hidden; }
.talk-in { max-width: 1440px; margin: 0 auto; padding: 40px 16px; display: flex; flex-direction: column; align-items: center; gap: 48px; }
.talk-head { max-width: 600px; text-align: center; color: #fbf6ee; }
.talk-head h3 { font-weight: 400; font-size: clamp(24px, 3vw, 36px); line-height: 1.22; letter-spacing: -.3px; }
.talk-head .th-role { margin-top: 6px; font-weight: 400; font-size: clamp(20px, 2.4vw, 28px); line-height: 1.2; }
.talk-head .th-note { margin-top: 24px; font-size: 17px; line-height: 26px; color: rgba(251,246,238,.85); }
.player { position: relative; width: 100%; aspect-ratio: 16 / 9; border-radius: 32px; overflow: hidden; background: #000; }
.player-video { width: 100%; height: 100%; object-fit: contain; display: block; }
.player-center { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); transition: opacity .3s ease-in-out; }
.player-play {
  height: 44px; padding: 8px 24px; border-radius: 999px; font-size: 14px; font-weight: 500; color: #fff;
  background: rgba(157,157,157,.2); border: 1px solid rgba(255,255,255,.3);
  box-shadow: inset 0 0 10px rgba(0,0,0,.2); -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px);
}
/* 底部控制条默认隐藏，悬停 / 聚焦 / 播放时浮现（原站用 JS 改 opacity，此处用 CSS 等价实现） */
.player-bar { position: absolute; left: 0; right: 0; bottom: 0; padding: 0 16px; display: flex; align-items: center; gap: 8px; opacity: 0; transition: opacity .3s ease-in-out; }
.player:hover .player-bar, .player:focus-within .player-bar, .player.playing .player-bar { opacity: 1; }
.player.playing .player-center { opacity: 0; pointer-events: none; }
.pp-btn {
  width: 40px; height: 40px; border-radius: 50%; flex: none; display: grid; place-items: center;
  color: #fff; background: rgba(157,157,157,.2); border: 1px solid rgba(255,255,255,.3);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.player .ic-pause { display: none; }
.player.playing .ic-play { display: none; }
.player.playing .ic-pause { display: block; }
.player-seek {
  flex: 1; height: 4px; border-radius: 999px; cursor: pointer;
  -webkit-appearance: none; appearance: none;
  background: linear-gradient(to right, #fff 0%, rgba(255,255,255,.3) 0%);
}
.player-seek::-webkit-slider-thumb { -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%; background: #fff; }
.player-seek::-moz-range-thumb { width: 12px; height: 12px; border: 0; border-radius: 50%; background: #fff; }
@media (min-width: 1024px) { .talk-in { padding: 80px 40px; } }
@media (min-width: 768px) { .player-bar { padding: 16px; } }

/* ==========================================================================
   资讯页对齐原站：媒体报道列表 / 长寿文章 / FAQ 分类
   ========================================================================== */

/* ---------- 媒体报道（来源·日期·标题·摘要） ---------- */
.press-list { display: grid; gap: 14px; }
.press {
  border: 1px solid rgba(51,41,31,.14); border-radius: 18px; background: #fff;
  padding: clamp(18px, 2.6vw, 28px); display: grid; gap: 9px;
}
.press .p-meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: rgba(51,41,31,.55); }
.press .p-meta .src { color: var(--accent-dk); font-weight: 700; }
.press .p-meta .dot { opacity: .45; }
.press h3 { font-size: clamp(17px, 2vw, 22px); line-height: 1.45; color: #5a5148; }
.press .p-sum { font-size: 14px; line-height: 1.75; color: rgba(51,41,31,.75); max-width: 860px; }
.press .p-en { font-size: 12.5px; line-height: 1.6; color: rgba(51,41,31,.45); }

/* ---------- 长寿文章卡 ---------- */
.blog-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.blog-card {
  border-radius: 18px; background: #fff; border: 1px solid rgba(51,41,31,.12);
  padding: 22px 22px 24px; display: grid; gap: 10px; align-content: start;
}
.blog-card .bk-k { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: rgba(51,41,31,.5); }
.blog-card h3 { font-size: 17px; line-height: 1.45; color: #5a5148; }
.blog-card .bk-more { font-size: 13px; color: var(--accent-dk); font-weight: 600; }

/* ---------- FAQ 分类胶囊 ---------- */
.faq-cats { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0 30px; }
.faq-cats span {
  font-size: 13px; padding: 9px 16px; border-radius: 99px; cursor: default;
  border: 1px solid rgba(51,41,31,.16); background: #fff; color: rgba(51,41,31,.72);
}
.faq-cats span.on { background: var(--brown-900); color: var(--cream-100); border-color: var(--brown-900); }
.faq h4 { font-size: 19px; color: #5a5148; margin: 26px 0 6px; }
.faq .src-note { font-size: 13px; color: rgba(51,41,31,.55); line-height: 1.7; margin-top: 18px; }

/* ---------- 右下角客服浮层（纯本地静态，不连任何外部服务） ---------- */
.support { position: fixed; right: clamp(16px, 2.4vw, 28px); bottom: clamp(16px, 2.4vw, 28px); z-index: 90; }
.support .support-fab {
  display: inline-flex; align-items: center; gap: 10px; cursor: pointer;
  background: var(--accent); color: #fff; border: 0; border-radius: var(--r-pill);
  padding: 15px 22px; font-family: inherit; font-size: 15px; font-weight: 600;
  box-shadow: 0 14px 34px rgba(36,21,5,.34); transition: transform .3s var(--ease), background .3s;
}
.support .support-fab:hover { transform: translateY(-2px); background: var(--accent-dk); }
.support .support-fab .sf-icon { font-size: 17px; line-height: 1; }
.support .support-panel {
  position: absolute; right: 0; bottom: calc(100% + 14px); width: min(340px, 88vw);
  background: #fff; color: #33291f; border-radius: 20px; overflow: hidden;
  box-shadow: 0 26px 60px rgba(36,21,5,.3); border: 1px solid rgba(51,41,31,.1);
  opacity: 0; visibility: hidden; transform: translateY(12px) scale(.98);
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
}
.support.open .support-panel { opacity: 1; visibility: visible; transform: none; }
.support.open .support-fab .sf-label { display: none; }
.support .sp-head {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--brown-900); color: var(--txt-on-dark); padding: 16px 16px 18px;
}
.support .sp-avatar {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(245,240,232,.14); border: 1px solid rgba(245,240,232,.28); font-size: 17px;
}
.support .sp-title { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.support .sp-sub { font-size: 12px; line-height: 1.5; color: var(--muted-dark); }
.support .sp-close {
  margin-left: auto; background: transparent; border: 0; color: var(--muted-dark);
  font-size: 15px; cursor: pointer; padding: 2px 4px;
}
.support .sp-close:hover { color: #fff; }
.support .sp-body { padding: 16px; display: grid; gap: 12px; }
.support .sp-msg { font-size: 13.5px; line-height: 1.65; color: #55504a; background: var(--cream-100); border-radius: 14px 14px 14px 4px; padding: 12px 14px; }
.support .sp-msg b { color: var(--brown-900); }
.support .sp-msg.me { background: rgba(217,62,26,.09); border-radius: 14px 14px 4px 14px; }
.support .sp-quick { display: flex; flex-wrap: wrap; gap: 8px; }
.support .sp-quick a {
  font-size: 12.5px; padding: 7px 12px; border-radius: 99px; text-decoration: none;
  border: 1px solid rgba(51,41,31,.16); color: #55504a; background: #fff;
}
.support .sp-quick a:hover { border-color: var(--accent); color: var(--accent-dk); }
.support .sp-form { display: flex; gap: 8px; align-items: center; padding: 0 16px 12px; }
.support .sp-form input {
  flex: 1 1 auto; min-width: 0; font-family: inherit; font-size: 13.5px; color: #33291f;
  background: var(--cream-50); border: 1px solid rgba(51,41,31,.16); border-radius: 99px; padding: 11px 16px; outline: none;
}
.support .sp-form input:focus { border-color: var(--accent); }
.support .sp-form button {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--accent); color: #fff; font-size: 16px; line-height: 1;
}
.support .sp-form button:hover { background: var(--accent-dk); }
.support .sp-note { font-size: 11px; line-height: 1.6; color: rgba(51,41,31,.55); padding: 0 16px 14px; }
@media (max-width: 640px) {
  .support .support-fab { padding: 13px 18px; font-size: 14px; }
}

/* ==========================================================================
   关于组独立页（授权合作方 / 职业 / FAQs）
   原站这三页共用：满屏页头、左栏索引 + 右列卡片、玻璃感手风琴卡、发光 CTA 视频带
   ========================================================================== */

/* 页底色：原站 nk-beige-300 = #FBF6EE（比 --cream-50 更暖一档） */
.on-beige { background: #fbf6ee; color: var(--txt-on-light); }
.on-beige h1, .on-beige h2, .on-beige h3 { color: #6b6259; }

/* ---------- 满屏页头（职业：视频 / FAQs：图片） ---------- */
.page-head.full {
  position: relative; min-height: 100svh; overflow: hidden; isolation: isolate;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 150px 0 clamp(40px, 7vh, 72px);
}
.page-head.full .head-media {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center; z-index: -2;
}
.page-head.full::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(20,14,8,.34) 0%, rgba(20,14,8,0) 34%, rgba(20,14,8,.42) 100%);
}
.page-head.full .container { position: relative; z-index: 2; }
.page-head.full h1 { font-size: clamp(28px, 4.2vw, 48px); color: #fbf6ee; }
.page-head.full .lead { color: rgba(251,246,238,.9); margin-top: 20px; }

/* ---------- 左栏索引 + 右列内容（原站 320px 吸顶栏 + 1fr 内容，间距 40px） ---------- */
.rail-wrap { display: grid; gap: 30px; }
@media (min-width: 1000px) {
  .rail-wrap { grid-template-columns: 320px minmax(0, 1fr); gap: 40px; align-items: start; }
}
.rail { display: flex; flex-direction: column; }
@media (min-width: 1000px) { .rail { position: sticky; top: 104px; } }
.rail button {
  display: block; width: 100%; text-align: left; padding: 20px 0 18px;
  border-bottom: 1px solid rgba(107,98,89,.26);
  font-size: clamp(17px, 1.5vw, 21px); line-height: 1.25; color: #a89e93;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}
.rail button:hover { color: #6b6259; }
.rail button.on { color: #55504a; border-bottom: 2px solid #55504a; }
.rail .rn { margin-right: .35em; }

/* ---------- 玻璃感手风琴卡（职业职位 / FAQs 问答） ---------- */
.acc details {
  background: rgba(145,106,66,.08); border: 1px solid rgba(107,98,89,.24);
  border-radius: 20px; margin-bottom: 18px;
  -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px);
  transition: background .2s;
}
.acc details:hover { background: rgba(145,106,66,.1); }
.acc details[open] { background: rgba(145,106,66,.06); }
.acc summary {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 18px;
  padding: clamp(20px, 2.2vw, 30px) clamp(20px, 2.2vw, 32px);
  font-size: clamp(18px, 1.8vw, 24px); line-height: 1.3; color: #5b524a; list-style: none;
}
.acc summary::-webkit-details-marker { display: none; }
.acc summary .chev { flex: 0 0 auto; width: 25px; height: 25px; margin-top: 3px; transition: transform .3s var(--ease); }
.acc details[open] summary .chev { transform: rotate(180deg); }
.acc .acc-body {
  padding: 0 clamp(20px, 2.2vw, 32px) clamp(22px, 2.4vw, 32px);
  font-size: 15.5px; line-height: 1.75; color: var(--txt-on-light);
}
.acc .acc-body p { margin-bottom: 14px; }
.acc .acc-body p:last-child { margin-bottom: 0; }
.acc .acc-body h4 { font-size: 17px; color: #5b524a; margin: 22px 0 10px; }
.acc .acc-body ul { display: grid; gap: 8px; margin: 0 0 14px; }
.acc .acc-body li { position: relative; padding-left: 18px; }
.acc .acc-body li::before { content: "·"; position: absolute; left: 2px; color: var(--brown-600); }
.acc .acc-body .kv { display: flex; flex-wrap: wrap; gap: 6px 10px; margin-bottom: 16px; font-size: 14.5px; color: var(--muted-light); }
.acc .acc-body .kv b { color: #5b524a; }
.acc .acc-body a { text-decoration: underline; text-underline-offset: 3px; }
.acc .acc-body .ref { font-size: 13.5px; color: var(--muted-light); }
/* 问答内的粗体引导行（原站形如「样本回寄：……」的小标题） */
.acc .acc-body .fi { color: #5b524a; margin-right: .3em; }
.acc .acc-body code { font-family: inherit; font-size: 13.5px; color: #6b6259; }

/* ---------- 授权合作方：机构卡 ---------- */
.ap-region { scroll-margin-top: 110px; margin-bottom: clamp(40px, 5vw, 64px); }
.ap-region > h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 400; line-height: 1.24; margin-bottom: 16px; }
.ap-note { max-width: 900px; font-size: 15.5px; line-height: 1.75; color: var(--txt-on-light); margin-bottom: 26px; }
.ap-note a { text-decoration: underline; text-underline-offset: 3px; }
.ap-list { display: grid; gap: 16px; }
.ap-card {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 26px; align-items: center;
  border: 1px solid rgba(107,98,89,.18); border-radius: 20px;
  background: rgba(255,255,255,.42); padding: 22px clamp(20px, 2vw, 30px);
}
.ap-card h3 { font-size: clamp(19px, 1.7vw, 24px); color: #6b6259; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.ap-card .ap-addr { grid-column: 1; font-size: 14.5px; line-height: 1.6; color: var(--muted-light); }
.ap-card .ap-site { grid-column: 2; grid-row: 1 / span 2; font-size: 14.5px; color: var(--muted-light); white-space: nowrap; text-align: right; }
.ap-card .ap-site.none { opacity: .55; }
.ap-badge {
  font-size: 12.5px; font-weight: 500; color: #6b6259; background: rgba(145,106,66,.16);
  border-radius: 999px; padding: 5px 12px; white-space: nowrap;
}
@media (max-width: 640px) {
  .ap-card { grid-template-columns: 1fr; }
  .ap-card .ap-site { grid-column: 1; grid-row: auto; }
}

/* ---------- FAQs：吸顶搜索框 + 分类标题 ---------- */
.faq-top { display: flex; justify-content: flex-end; pointer-events: none; margin-bottom: 18px; }
@media (min-width: 1000px) { .faq-top { position: sticky; top: 96px; z-index: 5; } }
.faq-search {
  pointer-events: auto; display: flex; align-items: center; gap: 12px; width: min(320px, 100%);
  background: #fff; border: 1px solid rgba(107,98,89,.2); border-radius: 18px;
  padding: 16px 20px; box-shadow: 0 10px 30px rgba(36,21,5,.06);
}
.faq-search svg { flex: 0 0 auto; width: 20px; height: 20px; color: #6b6259; }
.faq-search input {
  flex: 1 1 auto; min-width: 0; border: 0; outline: none; background: transparent;
  font-family: inherit; font-size: 16px; color: #33291f;
}
.faq-search input::placeholder { color: #a89e93; }
.faq-cat { font-size: clamp(20px, 2.4vw, 28px); line-height: 1.28; letter-spacing: -.1px; font-weight: 400; color: #6b6259; margin-bottom: 26px; }
.faq-panel[hidden] { display: none; }
/* 搜索命中时按分类分组显示，标题之上留出分隔（仅作用于同时可见的面板） */
.faq-panel:not([hidden]) ~ .faq-panel:not([hidden]) { margin-top: 40px; }
.faq-empty { font-size: 15.5px; color: var(--muted-light); padding: 8px 0 20px; }
/* 搜索时分类导航暂时失效（跨全部分类命中），轻度变暗以提示不可点 */
.rail button[disabled] { opacity: .55; cursor: default; }

/* ---------- 发光 CTA 视频带：米色版（三页尾部共用） ---------- */
.tint-cta.beige { background: linear-gradient(0deg, #241400 30.59%, #fbf6ee 60.84%, #fbf6ee 79.68%); }
.tint-cta .tint.brown-color { background: #5c3d1e; mix-blend-mode: color; }
.tint-cta .tint-dark { position: absolute; inset: 0; z-index: 1; background: #000; opacity: .35; }
.tint-cta .band-cta {
  width: 100%; height: 58px; margin-top: 66px; font-size: 14px; font-weight: 500;
  border: 1px solid rgba(255,255,255,.2); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}

/* ---------- 职业页：居中文案段 ---------- */
.center-copy { text-align: center; }
.center-copy h2 { font-size: clamp(24px, 3vw, 36px); line-height: 1.22; letter-spacing: -.3px; font-weight: 400; margin-bottom: 26px; }
.center-copy p { max-width: 600px; margin: 0 auto 20px; font-size: 16px; line-height: 1.75; color: var(--txt-on-light); }
.center-copy p.strong { font-weight: 600; color: #5b524a; }

/* 本地演示说明（全站通用） */
.src-note { font-size: 13px; color: rgba(51,41,31,.55); line-height: 1.7; margin-top: 18px; }

/* ==========================================================================
   生物标志物页：满屏首屏（静态背景 + 旋转指标盘）+ 22 系统筛选手风琴
   全部几何 / 字级取自原站 1422px 视口实测：
   圆盘 2200×2200、right:100px、辐步半径位移 630px、151 条 × 2.38411°、
   角速度 0.3864°/s（一圈约 930s）、玻璃卡 aspect 611/570；
   H1 60px/1.02/-1.2px、系统标题 30px/400、计数 14px、色 #746A5D / #948071
   ========================================================================== */

/* ---------- 首屏 ---------- */
.bm-hero {
  position: sticky; top: 0; z-index: 1;
  height: 100svh; min-height: 560px;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-bottom: clamp(40px, 8vh, 60px);
  background: var(--ink); overflow: hidden;
}
.bm-hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.bm-hero-bg-m { display: none; }
@media (max-width: 1023px) { .bm-hero-bg { display: none; } .bm-hero-bg-m { display: block; } }
.bm-hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, rgba(36,20,0,.42) 0%, rgba(36,20,0,0) 30%, rgba(36,20,0,.28) 100%);
}
.bm-hero-in {
  position: relative; z-index: 2;
  width: min(1440px, 92vw); margin-inline: auto;
  display: grid; gap: 12px; align-items: end;
}
/* 原站 md:nk-heading-2 / xl:nk-heading-1（44 → 60px），中文取 36 → 48px */
.bm-h1 { font-size: 26px; font-weight: 400; line-height: 1.18; letter-spacing: -.3px; color: #fff; }
@media (min-width: 768px)  { .bm-h1 { font-size: 36px; line-height: 1.2; letter-spacing: -.3px; } }
@media (min-width: 1280px) { .bm-h1 { font-size: 48px; letter-spacing: -.5px; } }
@media (min-width: 1024px) {
  .bm-hero-in { grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 32px; }
  .bm-h1 { grid-column: span 5; }
  .bm-card-wrap { grid-column: 7 / span 6; }
}
@media (min-width: 1280px) { .bm-h1 { grid-column: span 6; } }

/* 玻璃卡：原站 bg-nk-gray-500 = hsl(0 0% 62% / .2) + 白描边 + 15px 背景模糊 */
.bm-card-wrap { position: relative; width: 100%; aspect-ratio: 277/259; border-radius: 24px; }
@media (min-width: 768px)  { .bm-card-wrap { aspect-ratio: 2/1; border-radius: 32px; } }
@media (min-width: 1024px) { .bm-card-wrap { aspect-ratio: 611/570; } }
.bm-card {
  position: absolute; inset: 0; overflow: hidden; border-radius: 16px;
  background: rgba(158,158,158,.2); border: 1px solid rgba(255,255,255,.3);
  -webkit-backdrop-filter: blur(15px); backdrop-filter: blur(15px);
}
.bm-disk { position: absolute; top: 50%; right: 100px; width: 2200px; height: 2200px; transform: translateY(-50%); }
.bm-disk-rot {
  position: absolute; inset: 0; transform-style: preserve-3d; will-change: transform;
  animation: bmSpin 930s linear infinite;
}
@keyframes bmSpin { to { transform: rotate(360deg); } }
.bm-spoke { position: absolute; top: 50%; left: 50%; display: flex; align-items: center; transform-origin: 0% 50%; }
.bm-spoke-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-left: 630px; white-space: nowrap; }
.bm-sys { display: flex; align-items: center; gap: 12px; width: clamp(150px, 21vw, 270px); color: #f2e7da; }
.bm-dot { flex: 0 0 auto; width: 10px; height: 10px; border-radius: 50%; background: #a7b776; }
.bm-dot.orange { background: #ce6a3c; }
.bm-dot.gold { background: #e9c864; }
.bm-gene { display: flex; flex: 1 1 auto; align-items: center; gap: 12px; }
.bm-gene em { font-style: normal; color: #fff; }
.bm-gene b { font-weight: 400; color: #f2e7da; width: clamp(72px, 8vw, 100px); }
/* 辐步字号：原站 10px（移动）→ 16px（md）→ 10px（lg）→ 16px（xl），
   lg 段刻意调小是为了少显示几条辐步、避免 655px 卡片里挤成一团 */
.bm-sys, .bm-gene { font-size: 11px; }
@media (min-width: 768px)  { .bm-sys, .bm-gene { font-size: 16px; } }
@media (min-width: 1024px) { .bm-sys, .bm-gene { font-size: 11px; } }
@media (min-width: 1280px) { .bm-sys, .bm-gene { font-size: 16px; } }

/* ---------- 22 系统筛选手风琴（原站 bg-nk-beige-300 = #FBF6EE） ---------- */
.bm-filter { position: relative; z-index: 2; background: #fbf6ee; color: #746a5d; padding: 60px 0; }
@media (min-width: 1024px) { .bm-filter { padding: 120px 0; } }
.bm-filter-in { width: min(1440px, 92vw); margin-inline: auto; display: grid; gap: 24px; }
@media (min-width: 1024px) {
  .bm-filter-in { grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 32px; }
  .bm-filter-h2 { grid-column: span 3; margin-bottom: 32px; }
  .bm-acc { grid-column: 4 / span 9; min-width: 0; }
}
/* 原站 H2 为 hidden lg:block —— 移动端确实不显示 */
.bm-filter-h2 { display: none; font-size: 24px; font-weight: 400; line-height: 1.2; color: #948071; }
@media (min-width: 1024px) { .bm-filter-h2 { display: block; } }

.bm-head { display: flex; flex-direction: column; gap: 24px; width: 100%; text-align: left; }
@media (min-width: 1024px) { .bm-head { gap: 32px; } }
.bm-rule { display: block; height: 1px; background: rgba(36,20,0,.1); }
.bm-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.bm-row-l { display: flex; align-items: flex-start; gap: 16px; flex: 1 1 auto; min-width: 0; padding-right: 16px; }
.bm-ico { flex: 0 0 auto; display: flex; align-items: center; justify-content: center; width: 30px; height: 30px; }
.bm-titles { display: flex; flex: 1 1 auto; min-width: 0; flex-direction: column; gap: 8px; }
@media (min-width: 1024px) { .bm-titles { flex-direction: row; align-items: center; justify-content: space-between; gap: 16px; } }
.bm-name-wrap { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; min-width: 0; }
.bm-name { font-size: 20px; font-weight: 400; line-height: 1.2; letter-spacing: .36px; color: #746a5d; }
@media (min-width: 1024px) { .bm-name { font-size: 28px; line-height: 1.28; letter-spacing: -.1px; } }
.bm-badge {
  flex: 0 0 auto; margin-top: 2px; padding: 4px 8px; border-radius: 20px;
  background: #916a42; color: #f2e8db; font-size: 10px; line-height: 12px;
  font-weight: 500; letter-spacing: .14px; white-space: nowrap;
}
.bm-count { font-size: 14px; line-height: 1.22; letter-spacing: .42px; color: #746a5d; opacity: .8; }
@media (min-width: 1024px) { .bm-count { width: 200px; flex: 0 0 auto; text-align: left; } }
/* 原站箭头上写死 transform:rotate(180deg) 只在展开态出现 —— 即收起时箭头向下、展开后向上 */
.bm-arrow {
  flex: 0 0 auto; width: 32px; height: 32px; background: url("../img/svg/systems/accordion-arrow.svg") center / 32px 32px no-repeat;
  transition: transform .4s var(--ease);
}
.bm-head[aria-expanded="true"] .bm-arrow { transform: rotate(180deg); }
.bm-note { font-size: 14px; line-height: 1.5; color: rgba(147,128,112,.8); padding: 0 8px; }
@media (min-width: 1024px) { .bm-note { font-size: 16px; } }

/* 面板：0fr → 1fr 的行高动画（对应原站 framer-motion 的 height 展开） */
.bm-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .45s var(--ease); }
.bm-head[aria-expanded="true"] + .bm-panel { grid-template-rows: 1fr; }
.bm-panel-in { visibility: hidden; overflow: hidden; display: flex; flex-direction: column; }
.bm-head[aria-expanded="true"] + .bm-panel .bm-panel-in { visibility: visible; }
@media (min-width: 1024px) { .bm-panel-in { padding-left: 8px; } }
.bm-bm { display: grid; gap: 16px; }
.bm-bm h4 { font-size: 20px; font-weight: 400; line-height: 1.2; letter-spacing: .36px; color: #948071; }
.bm-bm p { font-size: 14px; line-height: 1.55; letter-spacing: .42px; color: #746a5d; }
@media (min-width: 1024px) {
  .bm-bm { grid-template-columns: repeat(9, minmax(0, 1fr)); align-items: start; }
  .bm-bm h4 { grid-column: span 3; font-size: 24px; letter-spacing: normal; }
  .bm-bm p { grid-column: span 6; font-size: 16px; letter-spacing: .48px; }
}
.bm-sep { display: block; height: 1px; margin: 24px 0; background: rgba(115,105,92,.06); }
@media (min-width: 1024px) { .bm-sep { margin: 32px 0; } }
.bm-more { display: flex; flex-direction: column; gap: 8px; padding: 24px 0; }
@media (min-width: 1024px) { .bm-more { flex-direction: row; align-items: center; justify-content: space-between; gap: 16px; padding: 32px 0; } }
.bm-more-n { font-size: 20px; font-weight: 400; line-height: 1.2; color: #948071; }
.bm-more-t { font-size: 14px; line-height: 1.5; color: #948071; }
@media (min-width: 1024px) { .bm-more-n { font-size: 24px; } .bm-more-t { font-size: 16px; } }
.bm-more a { text-decoration: underline; text-underline-offset: 3px; }
.bm-more a:hover { opacity: .8; }
@media (prefers-reduced-motion: reduce) {
  .bm-disk-rot { animation: none; }
  .bm-panel { transition: none; }
  .bm-arrow { transition: none; }
}