/* ============================================================
   亿嘉仁官网 · 全站共享样式（shared.css）
   内容：字体 @font-face / :root 设计令牌 / tone-light·tone-dark 语义变量 /
        基础排版 / 按钮·卡片·相框·玻璃·瓦片组件 / 页头导航·抽屉 / 页脚 /
        Toast / 滚动揭示
   首页各 section 的专属样式仍内联在 index.html（由 src/part1.html 生成）。
   ============================================================ */

/* ------------------------------------------------------------
   字体加载 —— Inter / Space Grotesk / JetBrains Mono（指定字重）
   首选 assets/fonts/ 下的本地文件（离线可用），本地缺失时自动回退 CDN
   中文走系统字体栈，不引入中文字体包
   ------------------------------------------------------------ */
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;
  src:url(../fonts/inter-400.woff2) format('woff2'),
      url(https://cdn.jsdelivr.net/npm/@fontsource/inter@5.0.16/files/inter-latin-400-normal.woff2) format('woff2');}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;
  src:url(../fonts/inter-600.woff2) format('woff2'),
      url(https://cdn.jsdelivr.net/npm/@fontsource/inter@5.0.16/files/inter-latin-600-normal.woff2) format('woff2');}
@font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:swap;
  src:url(../fonts/inter-700.woff2) format('woff2'),
      url(https://cdn.jsdelivr.net/npm/@fontsource/inter@5.0.16/files/inter-latin-700-normal.woff2) format('woff2');}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:500;font-display:swap;
  src:url(../fonts/space-grotesk-500.woff2) format('woff2'),
      url(https://cdn.jsdelivr.net/npm/@fontsource/space-grotesk@5.0.18/files/space-grotesk-latin-500-normal.woff2) format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;
  src:url(../fonts/jetbrains-mono-500.woff2) format('woff2'),
      url(https://cdn.jsdelivr.net/npm/@fontsource/jetbrains-mono@5.0.20/files/jetbrains-mono-latin-500-normal.woff2) format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:600;font-display:swap;
  src:url(../fonts/jetbrains-mono-600.woff2) format('woff2'),
      url(https://cdn.jsdelivr.net/npm/@fontsource/jetbrains-mono@5.0.20/files/jetbrains-mono-latin-600-normal.woff2) format('woff2');}

/* ------------------------------------------------------------
   设计令牌
   ------------------------------------------------------------ */
:root{
  /* —— 字体栈 —— */
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Source Han Sans SC','Noto Sans SC','Microsoft YaHei','Inter','Space Grotesk',sans-serif;
  --font-latin:'Inter','Space Grotesk',sans-serif;
  --font-mono:'JetBrains Mono','IBM Plex Mono',monospace;

  /* —— 字号阶梯（clamp 响应式）—— */
  --fs-display:clamp(2.5rem,6vw,5rem);
  --fs-h1:clamp(2rem,4vw,3.5rem);
  --fs-h2:clamp(1.5rem,3vw,2.25rem);
  --fs-h3:clamp(1.25rem,1.6vw,1.5rem);
  --fs-body:clamp(1rem,1.05vw,1.125rem);
  --fs-note:clamp(.8125rem,.9vw,.875rem);
  --fs-data:clamp(2rem,5vw,4rem);

  /* —— 行高 / 字距 —— */
  --lh-body:1.75;
  --lh-head:1.2;
  --ls-cn-head:.01em;
  --ls-latin:-.02em;
  --ls-num:.02em;

  /* —— 色板：医疗青墨 —— */
  --ink:#06282B; --ink-2:#08393B; --ink-3:#0B4A4C; --ink-4:#0E5C5C;
  --brand:#10A88F; --brand-2:#0B8A76; --brand-3:#07705F; --brand-l:#4FD8C2;
  --mint:#F2FBFA; --mint-2:#E3F4F1; --paper:#FFFFFF;
  --warm:#E9A26B; --warm-2:#C4834A; --alert:#E0674E;
  --slate:#0B2E30; --slate-2:#3E5A5C; --slate-3:#6E888A; --slate-4:#9DB2B3;

  /* —— 3D 立体阴影体系 —— */
  --sh-1:0 1px 2px rgba(6,40,43,.06), 0 2px 6px rgba(6,40,43,.05);
  --sh-2:0 2px 4px rgba(6,40,43,.06), 0 8px 20px rgba(6,40,43,.07), 0 18px 40px rgba(6,40,43,.06);
  --sh-3:0 4px 8px rgba(6,40,43,.07), 0 16px 34px rgba(6,40,43,.09), 0 34px 70px rgba(6,40,43,.09);
  --bevel:inset 0 1px 0 rgba(255,255,255,.85), inset 0 -1px 0 rgba(6,40,43,.045);
  --sh-brand:0 2px 4px rgba(7,58,50,.24), 0 8px 18px rgba(16,168,143,.32), 0 18px 38px rgba(16,168,143,.20), inset 0 1px 0 rgba(255,255,255,.42), inset 0 -2px 6px rgba(0,0,0,.10);
  --sh-brand-h:0 3px 6px rgba(7,58,50,.26), 0 14px 28px rgba(16,168,143,.38), 0 28px 56px rgba(16,168,143,.24), inset 0 1px 0 rgba(255,255,255,.5), inset 0 -2px 6px rgba(0,0,0,.12);
  --sh-dark:0 1px 0 rgba(255,255,255,.10) inset, 0 10px 26px rgba(0,0,0,.34), 0 30px 62px rgba(0,0,0,.26);
  --sh-dark-h:0 1px 0 rgba(255,255,255,.14) inset, 0 18px 38px rgba(0,0,0,.40), 0 46px 90px rgba(0,0,0,.30);
  --sh-photo:0 2px 6px rgba(6,40,43,.14), 0 14px 30px rgba(6,40,43,.16), 0 42px 84px rgba(6,40,43,.20);

  --r-lg:22px; --r-md:16px; --r-sm:11px;
  --ease:cubic-bezier(.2,.7,.28,1);
  --nav-h:72px;
}

/* —— 语义色变量：浅色 / 深色（子页面套 class 即换肤）—— */
.tone-light{
  --bg:var(--mint); --bg-2:var(--mint-2); --surface:var(--paper); --surface-2:#F7FCFB;
  --fg:var(--slate); --fg-2:var(--slate-2); --fg-3:var(--slate-3); --fg-4:var(--slate-4);
  --line:rgba(11,46,48,.11); --line-2:rgba(11,46,48,.06);
  --card-sh:var(--sh-2); --card-sh-h:var(--sh-3); --card-bevel:var(--bevel);
  --card-bg:linear-gradient(168deg,#FFFFFF 0%,#FBFEFD 52%,#F1FAF8 100%);
  --hair:rgba(11,46,48,.10);
}
.tone-dark{
  color:var(--fg);
  --bg:var(--ink); --bg-2:var(--ink-2); --surface:rgba(255,255,255,.055); --surface-2:rgba(255,255,255,.028);
  --fg:#EAFBF8; --fg-2:rgba(234,251,248,.72); --fg-3:rgba(234,251,248,.48); --fg-4:rgba(234,251,248,.30);
  --line:rgba(255,255,255,.13); --line-2:rgba(255,255,255,.07);
  --card-sh:var(--sh-dark); --card-sh-h:var(--sh-dark-h);
  --card-bevel:inset 0 1px 0 rgba(255,255,255,.11), inset 0 -1px 0 rgba(0,0,0,.22);
  --card-bg:linear-gradient(166deg,rgba(255,255,255,.085) 0%,rgba(255,255,255,.032) 55%,rgba(255,255,255,.014) 100%);
  --hair:rgba(255,255,255,.10);
}

/* ------------------------------------------------------------
   基础
   ------------------------------------------------------------ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{
  margin:0;background:var(--ink);color:var(--fg);
  font-family:var(--font-cn);font-size:var(--fs-body);font-weight:400;line-height:var(--lh-body);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(16,168,143,.26);color:#fff}
:focus-visible{outline:2px solid var(--brand-l);outline-offset:3px;border-radius:4px}

.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 clamp(20px,4vw,40px)}
.sec{position:relative;padding:clamp(72px,9vw,132px) 0;background:var(--bg);color:var(--fg)}
.sec--tight{padding:clamp(56px,7vw,96px) 0}
.sec--flush{padding:0}

/* —— 标题排版 —— */
.display,.h1,.h2,.h3,.h4{font-family:var(--font-cn);font-weight:700;line-height:var(--lh-head);letter-spacing:var(--ls-cn-head);color:var(--fg)}
.display{font-size:var(--fs-display);letter-spacing:.005em}
.h1{font-size:var(--fs-h1);letter-spacing:.008em}
.h2{font-size:var(--fs-h2);line-height:1.25;letter-spacing:.01em}
.h3{font-size:var(--fs-h3);font-weight:600;line-height:1.3}
.h4{font-size:1.0625rem;font-weight:600;line-height:1.4}
.lead{font-size:var(--fs-body);line-height:var(--lh-body);color:var(--fg-2);max-width:38em;text-wrap:pretty}
.body{font-size:var(--fs-body);line-height:var(--lh-body);color:var(--fg-2);max-width:38em}
.note{font-size:var(--fs-note);line-height:1.7;color:var(--fg-3)}
.en{font-family:var(--font-latin);letter-spacing:var(--ls-latin);text-transform:uppercase}
/* 纯拉丁词（AI / HRV / SOS / ICP 等）单独套拉丁字族，避免落在雅黑自带的粗糙拉丁字形上 */
.lat{font-family:var(--font-latin);font-weight:inherit;letter-spacing:.01em;font-feature-settings:"liga" 1,"kern" 1}
.h2 .lat,.h3 .lat,.h4 .lat{letter-spacing:.02em;font-weight:600}
.num,.mono{font-family:var(--font-mono);font-weight:600;letter-spacing:var(--ls-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.brand-c{color:var(--brand)}
.tone-dark .brand-c{color:var(--brand-l)}
.hl{color:var(--brand);font-weight:700}
.tone-dark .hl{color:var(--brand-l)}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-cn);font-size:var(--fs-note);font-weight:700;
  letter-spacing:.08em;color:var(--brand);
}
.tone-dark .eyebrow{color:var(--brand-l)}
.eyebrow::before{content:'';width:22px;height:2px;border-radius:2px;background:currentColor;opacity:.55}

/* —— 区块头 —— */
.sec-head{display:grid;grid-template-columns:minmax(0,1.14fr) minmax(0,.96fr);gap:clamp(24px,4vw,64px);align-items:end;margin-bottom:clamp(40px,5vw,68px)}
.sec-head__l .h2{margin-top:18px}
.sec-head__r{padding-bottom:6px}
.sec-head--center{grid-template-columns:1fr;justify-items:center;text-align:center;max-width:820px;margin-inline:auto}
.sec-head--center .lead{margin-inline:auto}
@media(max-width:900px){.sec-head{grid-template-columns:1fr;align-items:start;gap:22px}}

/* ------------------------------------------------------------
   按钮（3D）
   ------------------------------------------------------------ */
.btn{
  --bh:52px;
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:var(--bh);padding:0 26px;border-radius:14px;
  font-family:var(--font-cn);font-size:.9375rem;font-weight:700;letter-spacing:.02em;
  white-space:nowrap;isolation:isolate;
  transition:transform .34s var(--ease),box-shadow .34s var(--ease),background .28s,color .28s,border-color .28s;
}
.btn i{display:inline-flex;width:18px;height:18px;flex:none}
.btn i svg{width:100%;height:100%;display:block}
.btn--primary{
  color:#fff;
  background:linear-gradient(157deg,#22CFB0 0%,var(--brand) 44%,var(--brand-3) 100%);
  box-shadow:var(--sh-brand);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:var(--sh-brand-h)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 1px 2px rgba(7,58,50,.3),inset 0 2px 7px rgba(0,0,0,.24)}
.btn--ghost{
  color:var(--fg);background:var(--surface);border:1px solid var(--hair);
  box-shadow:var(--sh-1),var(--bevel);
}
.btn--ghost:hover{transform:translateY(-2px);box-shadow:var(--sh-2),var(--bevel);border-color:rgba(16,168,143,.34);color:var(--brand)}
.tone-dark .btn--ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);box-shadow:var(--sh-dark)}
.tone-dark .btn--ghost:hover{color:var(--brand-l);border-color:rgba(79,216,194,.4);box-shadow:var(--sh-dark-h)}
/* 深色 Hero（首页 .hero / 二级页 .phero）没有 tone-dark 上下文，ghost 按钮需显式亮色文字 */
.hero .btn--ghost,.phero .btn--ghost{color:#EAFBF8;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);box-shadow:var(--sh-dark)}
.hero .btn--ghost:hover,.phero .btn--ghost:hover{color:var(--brand-l);border-color:rgba(79,216,194,.42);box-shadow:var(--sh-dark-h)}
.btn--light{color:var(--ink);background:linear-gradient(168deg,#FFFFFF,#E8F6F3);box-shadow:var(--sh-2),var(--bevel)}
.btn--light:hover{transform:translateY(-2px);box-shadow:var(--sh-3),var(--bevel)}
.btn--sm{--bh:42px;padding:0 18px;font-size:.875rem;border-radius:11px}
.cta-row{display:flex;flex-wrap:wrap;gap:14px}

/* ------------------------------------------------------------
   卡片（3D）
   ------------------------------------------------------------ */
.card{
  position:relative;border-radius:var(--r-md);
  background:var(--card-bg);border:1px solid var(--hair);
  box-shadow:var(--card-sh),var(--card-bevel);
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .4s;
}
.card::before{
  content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.30),rgba(255,255,255,0) 38%);
  opacity:.55;mix-blend-mode:overlay;
}
.tone-dark .card::before{background:linear-gradient(180deg,rgba(255,255,255,.14),rgba(255,255,255,0) 42%);opacity:.7}
.card>*{position:relative;z-index:1}
.card--pad{padding:clamp(20px,2.4vw,30px)}
.card--lift:hover{transform:translateY(-6px);box-shadow:var(--card-sh-h),var(--card-bevel);border-color:rgba(16,168,143,.28)}
.tone-dark .card--lift:hover{border-color:rgba(79,216,194,.34)}
.card--flush{padding:0;overflow:hidden}

/* 深色首页「呼吸屏」卡片：即使页面没有 tone-dark 类，也保证亮色文字 */
.breath__row .card{color:#EAFBF8}
.breath__row .card .h3{color:#EAFBF8}
.breath__row .card .note{color:rgba(234,251,248,.70)}

/* ------------------------------------------------------------
   图片框（3D 相框）
   ------------------------------------------------------------ */
.ph{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--ink-2);
  box-shadow:var(--sh-photo);isolation:isolate;
}
.ph::before{content:'';position:absolute;inset:0;z-index:3;border-radius:inherit;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.20),inset 0 1px 0 rgba(255,255,255,.32)}
.ph::after{content:'';position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(178deg,rgba(6,40,43,0) 42%,rgba(6,40,43,.10) 68%,rgba(6,40,43,.46) 100%)}
.ph--flat::after{display:none}
.ph--soft::after{background:linear-gradient(178deg,rgba(6,40,43,.06),rgba(6,40,43,.28))}
.ph--veil::after{background:linear-gradient(178deg,rgba(6,40,43,.34),rgba(6,40,43,.72))}
.ph img{width:100%;height:100%;object-fit:cover;transform:scale(1.008);transition:transform 1.2s var(--ease),filter .8s}
/* 产品外观：浅色展台（适配白底实拍产品图） */
.ph--plate{background:linear-gradient(158deg,#FFFFFF 0%,#F1F9F8 46%,#DCEBE9 100%);
  box-shadow:var(--sh-photo),inset 0 0 0 1px rgba(6,40,43,.07)}
.ph--plate::after{display:none}
.ph--plate::before{box-shadow:inset 0 0 0 1px rgba(6,40,43,.09),inset 0 1px 0 rgba(255,255,255,.95)}
.ph--plate img{object-fit:contain;padding:3%;transform:none;filter:contrast(1.06) saturate(1.04)}
.ph--plate:hover img{transform:scale(1.03)}
.ph:hover img{transform:scale(1.05)}
.r-16-10{aspect-ratio:16/10}.r-4-3{aspect-ratio:4/3}.r-3-4{aspect-ratio:3/4}.r-1-1{aspect-ratio:1/1}.r-21-9{aspect-ratio:21/9}.r-5-6{aspect-ratio:5/6}.r-9-16{aspect-ratio:9/16}

/* 相框内浮层说明 */
.ph-cap{position:absolute;z-index:4;left:clamp(16px,2vw,26px);right:clamp(16px,2vw,26px);bottom:clamp(16px,2vw,24px);
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px}
.ph-cap__t{font-size:var(--fs-note);font-weight:700;letter-spacing:.04em;color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.5)}
.ph-cap__s{font-size:var(--fs-note);color:rgba(255,255,255,.78);text-shadow:0 2px 10px rgba(0,0,0,.5)}

/* 玻璃浮层 */
.glass{
  position:relative;border-radius:var(--r-md);
  background:linear-gradient(166deg,rgba(255,255,255,.13),rgba(255,255,255,.05));
  -webkit-backdrop-filter:blur(18px) saturate(1.35);backdrop-filter:blur(18px) saturate(1.35);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 10px 30px rgba(0,0,0,.34),inset 0 1px 0 rgba(255,255,255,.22);
}
.glass--light{
  background:linear-gradient(166deg,rgba(255,255,255,.86),rgba(255,255,255,.66));
  border-color:rgba(255,255,255,.7);
  box-shadow:0 10px 30px rgba(6,40,43,.14),inset 0 1px 0 rgba(255,255,255,.9);
}

/* ------------------------------------------------------------
   监护瓦片（tile）
   ------------------------------------------------------------ */
.tile{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  background:linear-gradient(170deg,#0A3E41 0%,#072E31 60%,#062528 100%);
  border:1px solid rgba(79,216,194,.18);
  box-shadow:0 10px 26px rgba(0,0,0,.36),0 32px 64px rgba(0,0,0,.28),inset 0 1px 0 rgba(255,255,255,.10);
  color:#DDF7F3;
}
.tile__hd{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 15px;border-bottom:1px solid rgba(255,255,255,.08)}
.tile__tag{display:inline-flex;align-items:center;gap:7px;font-family:var(--font-cn);font-size:.75rem;font-weight:700;letter-spacing:.08em;color:var(--brand-l)}
.tile__dot{width:7px;height:7px;border-radius:50%;background:var(--brand-l);box-shadow:0 0 0 4px rgba(79,216,194,.18);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1;box-shadow:0 0 0 4px rgba(79,216,194,.20)}50%{opacity:.55;box-shadow:0 0 0 8px rgba(79,216,194,.04)}}
.tile__meta{font-family:var(--font-mono);font-size:.6875rem;font-weight:500;letter-spacing:.06em;color:rgba(221,247,243,.5)}
.tile__bd{padding:10px 12px 12px}
.tile__bd.ecg-tile{overflow:hidden}
.tile svg{display:block;width:100%;height:auto}
.tile__ft{padding:0 15px 13px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.tile__ft .note{color:rgba(221,247,243,.52);font-size:.75rem}

/* ------------------------------------------------------------
   页头导航 + 移动端抽屉
   ------------------------------------------------------------ */
.nav{position:fixed;inset:0 0 auto;z-index:80;height:var(--nav-h);display:flex;align-items:center;
  background:rgba(6,40,43,.55);-webkit-backdrop-filter:blur(16px) saturate(1.3);backdrop-filter:blur(16px) saturate(1.3);
  border-bottom:1px solid rgba(255,255,255,.07);transition:background .4s,box-shadow .4s,border-color .4s}
.nav.is-solid{background:rgba(6,40,43,.92);box-shadow:0 8px 30px rgba(0,0,0,.28)}
.nav__in{display:flex;align-items:center;gap:clamp(16px,3vw,44px);width:100%}
.logo{display:flex;align-items:center;gap:11px;flex:none}
.news__empty{padding:34px 0;text-align:center;color:var(--fg-3);font-size:.9375rem;letter-spacing:.02em}
.logo__m{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;flex:none;
  background:none;box-shadow:none;overflow:visible}
.logo__m svg{width:22px;height:22px;color:#fff}
.logo__img{width:100%;height:100%;object-fit:contain;display:block;
  filter:drop-shadow(0 3px 10px rgba(0,0,0,.22))}
.logo__t{display:flex;flex-direction:column;line-height:1.15}
.logo__t b{font-size:1.0625rem;font-weight:700;letter-spacing:.06em;color:#EAFBF8}
.logo__t span{font-family:var(--font-cn);font-size:.625rem;font-weight:500;letter-spacing:.16em;color:rgba(234,251,248,.5)}
.nav__links{display:flex;align-items:center;gap:clamp(10px,1.7vw,26px);margin-left:auto}
.nav__links a{position:relative;font-size:.9375rem;font-weight:500;letter-spacing:.02em;color:rgba(234,251,248,.72);padding:6px 2px;transition:color .28s}
.nav__links a::after{content:'';position:absolute;left:0;right:100%;bottom:0;height:2px;border-radius:2px;background:var(--brand-l);transition:right .34s var(--ease)}
.nav__links a:hover{color:#fff}
.nav__links a:hover::after{right:0}
.nav__links a.is-on{color:#fff;font-weight:600}
.nav__links a.is-on::after{right:0}
.nav__cta{display:flex;align-items:center;gap:10px;flex:none}
.nav__burger{display:none;width:42px;height:42px;border-radius:11px;place-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
.nav__burger svg{width:20px;height:20px;color:#EAFBF8}
@media(max-width:1080px){.nav__links,.nav__cta .btn{display:none}.nav__burger{display:grid;margin-left:auto}}

.drawer{position:fixed;inset:0;z-index:120;display:none}
.drawer.is-open{display:block}
.drawer__bd{position:absolute;inset:0;background:rgba(4,22,24,.62);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.drawer__pn{position:absolute;top:0;right:0;bottom:0;width:min(88vw,380px);padding:22px;
  background:linear-gradient(180deg,#0A3A3D,#062528);border-left:1px solid rgba(255,255,255,.12);
  box-shadow:-24px 0 60px rgba(0,0,0,.5);overflow-y:auto}
.drawer__hd{display:flex;align-items:center;justify-content:flex-start;gap:10px;margin-bottom:22px}
.drawer__hd .logo__m{width:36px;height:36px}
.drawer__x{margin-left:auto;width:40px;height:40px;border-radius:11px;display:grid;place-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
.drawer__x svg{width:18px;height:18px;color:#EAFBF8}
.drawer a{display:block;padding:15px 4px;font-size:1.0625rem;font-weight:600;color:rgba(234,251,248,.9);border-bottom:1px solid rgba(255,255,255,.08)}
.drawer .btn{margin-top:22px;width:100%}

/* ------------------------------------------------------------
   页脚
   ------------------------------------------------------------ */
.foot{background:#041E20;color:rgba(234,251,248,.62);padding:clamp(48px,6vw,80px) 0 28px}
.foot__g{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr);gap:clamp(26px,3.4vw,52px)}
.foot .logo__t b{color:#EAFBF8}
.foot__d{margin-top:18px;font-size:.9375rem;line-height:1.85;color:rgba(234,251,248,.52);max-width:38em}
.foot__h{font-size:.875rem;font-weight:700;letter-spacing:.08em;color:rgba(234,251,248,.86);margin-bottom:16px;font-family:var(--font-cn)}
.foot__l{display:grid;gap:11px}
.foot__l li{font-size:.875rem;line-height:1.6;display:flex;gap:9px}
.foot__l li b{font-weight:500;color:rgba(234,251,248,.44);flex:none;min-width:44px}
.foot__b{margin-top:clamp(34px,4vw,52px);padding-top:22px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.foot__b p{font-size:.8125rem;color:rgba(234,251,248,.42)}
.foot__nav{display:flex;flex-wrap:wrap;gap:18px}
.foot__nav a{font-size:.8125rem;color:rgba(234,251,248,.5);transition:color .28s}
.foot__nav a:hover{color:var(--brand-l)}
.disc{margin-top:22px;padding:16px 18px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)}
.disc p{font-size:.8125rem;line-height:1.8;color:rgba(234,251,248,.46)}
@media(max-width:900px){.foot__g{grid-template-columns:1fr}}

/* ------------------------------------------------------------
   Toast 浮标
   ------------------------------------------------------------ */
.toast{position:fixed;z-index:200;left:50%;bottom:34px;transform:translate(-50%,20px);opacity:0;pointer-events:none;
  padding:13px 22px;border-radius:14px;max-width:min(92vw,520px);
  background:rgba(6,40,43,.94);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(79,216,194,.28);color:#EAFBF8;font-size:.9375rem;line-height:1.6;
  box-shadow:0 14px 34px rgba(0,0,0,.44),inset 0 1px 0 rgba(255,255,255,.14);
  transition:opacity .34s var(--ease),transform .34s var(--ease)}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* ------------------------------------------------------------
   滚动揭示
   ------------------------------------------------------------ */
.js .rv{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .rv.in{opacity:1;transform:none}
.js .rv[data-d="1"]{transition-delay:.09s}.js .rv[data-d="2"]{transition-delay:.18s}
.js .rv[data-d="3"]{transition-delay:.27s}.js .rv[data-d="4"]{transition-delay:.36s}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .js .rv{opacity:1;transform:none}
}