/* MEALER — mealerbiotech.com — v7 */
@font-face{font-family:"Noto Sans SC";font-weight:400;font-display:swap;src:url(fonts/noto-sc-400.woff2?v=45ce68b0) format("woff2")}
@font-face{font-family:"Noto Sans SC";font-weight:500;font-display:swap;src:url(fonts/noto-sc-500.woff2?v=45ce68b0) format("woff2")}
@font-face{font-family:"Noto Sans SC";font-weight:600;font-display:swap;src:url(fonts/noto-sc-600.woff2?v=45ce68b0) format("woff2")}
@font-face{font-family:"Inter";font-weight:100 900;font-display:swap;src:url(fonts/inter-vf.woff2?v=45ce68b0) format("woff2")}

:root{
  --teal:#12A89D; --teal-d:#0E8F86; --deep:#0E4F4A; --ink:#1F2A2E; --grey:#5C6569; --mute:#697377;
  --teal-t:#0F948A; --teal-s:#0C776F;  /* 文字用青：大标题 3:1、小字与链接 4.5:1（WCAG AA）；色块、边线、下划线仍用 --teal */
  --line:#EEF1F2; --line-2:#E3E8EA; --tint:#EEF7F6; --sand:#DCEFEC; --soft:#F5F8F8;
  --w:1120px; --text:41em;
  --s1:16px; --s2:24px; --s3:30px;
  --r:6px;
  --shadow:0 12px 32px -12px rgba(14,79,74,.22);
  --sans:"Inter","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65;font-weight:400;
  font-feature-settings:"kern","liga","calt";-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--teal-s);text-decoration:none;transition:color .2s}
a:hover{color:var(--teal-d)}
a:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:2px}
img{max-width:100%;height:auto;display:block}
p{margin:0 0 1em}
.wrap{max-width:var(--w);margin:0 auto;padding:0 32px}
.en{color:var(--grey);font-size:15px;line-height:1.6;letter-spacing:.005em}
::selection{background:var(--sand);color:var(--deep)}

/* ---------- header ---------- */
.hd{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s,box-shadow .3s}
.hd.on{border-bottom-color:var(--line);box-shadow:0 1px 0 rgba(14,79,74,.03)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;height:84px}
.hd .logo img{height:46px;width:auto}
.hd nav{display:flex;gap:36px}
.hd nav a{position:relative;color:var(--ink);font-size:15px;font-weight:500;line-height:1.25;display:flex;flex-direction:column;align-items:center;padding:6px 0}
.hd nav a span{color:var(--mute);font-size:11px;font-weight:400;letter-spacing:.02em;margin-top:2px}
.hd nav a::after{content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:2px;background:var(--teal);border-radius:2px;transition:left .25s,right .25s}
.hd nav a:hover::after,.hd nav a.on::after{left:0;right:0}
.hd nav a.on{color:var(--teal-s)}

/* ---------- sections ---------- */
.sec{padding:var(--s2) 0}
.sec.airy{padding:var(--s3) 0}
.sec.tight{padding:var(--s1) 0}
.sec.cta{padding:22px 0 24px}
.sec.tint{background:var(--tint)}
.sec.sand{background:var(--sand)}
.hero-sec{padding:24px 0 14px}
.hero-sec + .ph.bleed{margin-top:4px}

/* ---------- type ---------- */
h1.hero{font-size:64px;line-height:1.08;font-weight:600;color:var(--teal-t);letter-spacing:-.02em;margin:0 0 .25em}
h1.hero span,h2 span,h3 span{display:block;font-weight:400;color:var(--grey);letter-spacing:0}
h1.hero span{font-size:20px;margin-top:.5em;line-height:1.5}
h1.hero.small{font-size:46px;letter-spacing:-.015em;margin-bottom:.225em}
h1.hero.small span{font-size:17px;margin-top:.7em}
h1.hero i{font-style:normal;color:var(--teal-s);font-size:13px;font-weight:500;display:block;margin-bottom:1.2em;letter-spacing:.14em;text-transform:uppercase}
.lead{font-size:21px;line-height:1.6;max-width:26em;margin:0 0 .4em;font-weight:400}
.lead.en{font-size:16px;margin-top:0;max-width:34em}
h2{font-size:32px;font-weight:600;color:var(--teal-t);line-height:1.3;margin:0 0 .4em;letter-spacing:-.015em;max-width:24em}
h2 span{font-size:15px;margin-top:.3em}
h3{font-size:20px;font-weight:600;color:var(--ink);margin:0 0 .3em;letter-spacing:-.005em}
h3 span{font-size:13.5px;margin-top:.25em}
.txt{max-width:var(--text)}
.txt p{font-size:17.5px;margin-bottom:.45em}
.txt p.en{font-size:15px;line-height:1.6}
.txt p + p.en{margin-top:.6em}
.txt p.en + p.en{margin-top:0}
.txt h2{margin-bottom:.4em}
.txt > p:last-child,.sec > .wrap > p:last-child{margin-bottom:0}
.after-grid{margin-top:14px}

/* links & buttons */
.more{display:inline-flex;align-items:center;gap:.4em;font-weight:500;color:var(--teal-s)}
.more::after{content:"→";display:inline-block;transition:transform .25s}
.more:hover::after{transform:translateX(4px)}
.btn{display:inline-block;background:var(--teal);color:#fff;padding:15px 26px;line-height:1.25;border-radius:var(--r);font-weight:500;
  box-shadow:0 1px 0 rgba(0,0,0,.02);transition:background .2s,transform .2s,box-shadow .2s;vertical-align:middle;margin-right:20px}
.btn span{display:block;font-size:12px;font-weight:400;opacity:.85;margin-top:2px}
.btn:hover{background:var(--teal-d);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow)}

/* ---------- grids ---------- */
.three,.four,.two{display:grid;gap:14px 36px}
.three{grid-template-columns:repeat(3,1fr)}
.four{grid-template-columns:repeat(4,1fr)}
.two{grid-template-columns:repeat(2,1fr);gap:16px 56px}
.three p,.four p,.two p{margin-bottom:.4em}
.three h3,.four h3,.two h3{padding-top:10px;border-top:1px solid var(--line-2)}
.sec.deep .two h3{border-top-color:rgba(255,255,255,.18)}
.nums b{display:block;font-size:48px;font-weight:500;color:var(--teal-t);line-height:1.05;margin-bottom:.45em;letter-spacing:-.02em;font-feature-settings:"tnum"}
.nums p{font-size:15px;margin:0}
.brands{display:flex;flex-wrap:wrap;align-items:center;gap:36px 56px;padding-top:8px}
.brands img{height:42px;width:auto}
.brands img[src*="hengrui"],.brands img[src*="hengmei"]{height:36px}

/* levels */
.levels{margin:8px 0 0;max-width:var(--text)}
.levels dt{color:var(--deep);font-weight:500;margin-top:.6em}
.levels dd{margin:0}
.levels dd .en{display:block}

/* ---------- images ---------- */
figure{margin:0}
figure.ph{position:relative;overflow:hidden;border-radius:var(--r);background:var(--tint)}
figure.ph img{width:100%;filter:saturate(.84) contrast(1.03)}
figure.ph::after{content:"";position:absolute;inset:0;pointer-events:none;mix-blend-mode:multiply;
  background:linear-gradient(180deg,rgba(18,168,157,.05) 0%,rgba(14,79,74,.10) 100%)}
figure.ph.bleed{border-radius:0;max-width:1440px;margin:0 auto}
figure.ph.bleed img{height:46vh;min-height:300px;max-height:460px;object-fit:cover}
figure.ph.bleed.short img{height:38vh;max-height:380px}
figure.ph.bleed.pos-b img{object-position:50% 100%;height:52vh;min-height:440px;max-height:520px}  /* 业务页徒步队伍：沿对角线占满全幅，底边对齐只裁天空，并比其他通栏图略高，保证队首队尾都在画面内 */
@media (min-width:1441px){figure.ph.bleed{border-radius:var(--r)}}
figure.ph.wide{margin-top:16px}
figure.ph.wide img{aspect-ratio:21/9;object-fit:cover}
figure.ph.banner{max-width:var(--w);margin:0 auto;padding:0 32px;background:none;border-radius:0;overflow:visible}
figure.ph.banner::after{left:32px;right:32px;border-radius:var(--r)}
figure.ph.banner img{aspect-ratio:3/1;object-fit:cover;border-radius:var(--r)}
figcaption{font-size:13px;color:var(--grey);margin-top:12px;letter-spacing:.03em}
figure.ph figcaption{position:absolute;left:16px;bottom:12px;margin:0;color:#fff;background:rgba(14,79,74,.55);padding:4px 10px;border-radius:4px;z-index:1}
.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:64px;align-items:center}
.split-img img{aspect-ratio:4/3;object-fit:cover;object-position:50% 65%}

/* ---------- ingredient index ---------- */
.grp-sec{padding:var(--s2) 0}
h2.grp{margin:0 0 .9em;display:flex;align-items:baseline;gap:18px;flex-wrap:wrap;max-width:none}
h2.grp i{font-style:normal;font-size:14px;font-weight:600;color:var(--teal-s);letter-spacing:.12em;border:1.5px solid var(--teal);border-radius:20px;padding:2px 12px;line-height:1.4;position:relative;top:-6px}
h2.grp span{flex-basis:100%}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
@media (max-width:1180px){.cards{grid-template-columns:repeat(3,1fr)}}
.card{position:relative;display:flex;flex-direction:column;color:var(--ink);padding:18px 18px 16px;background:#fff;border:1px solid var(--line-2);border-radius:8px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent;color:var(--ink)}
.card i{font-style:normal;color:var(--teal-s);font-size:12px;font-weight:500;letter-spacing:.12em;font-feature-settings:"tnum";margin-bottom:8px}
.card h3{margin:0 0 .5em;font-size:18px;transition:color .2s}
.card:hover h3{color:var(--teal-s)}
.card p{margin:0;font-size:14px;line-height:1.65}
.card p.en{font-size:13px}
.card .cnt{display:block;margin-top:auto;padding-top:12px;font-size:12.5px;font-weight:500;color:var(--mute);letter-spacing:.04em;font-feature-settings:"tnum"}
.card .cnt span{margin-left:.45em;font-weight:400;letter-spacing:.02em}
.disc{font-size:13.5px;color:var(--grey);max-width:56em;margin:0 0 .6em;line-height:1.7}

/* ---------- category page ---------- */
.crumb{font-size:14px;margin-bottom:2.4em;font-weight:500}
.crumb a{color:var(--grey)}
.crumb a:hover{color:var(--teal-s)}
.crumb span{color:var(--mute);font-weight:400;margin-left:.35em}
.crumb-b{margin-top:2em}
.items{margin:0;border-top:1px solid var(--line-2)}
.items dt{color:var(--deep);font-weight:500;padding:26px 0 6px;font-size:16px}
.items dt span{display:block;color:var(--grey);font-weight:400;font-size:13.5px}
.items dd{margin:0;padding:0 0 26px;border-bottom:1px solid var(--line-2);max-width:var(--text)}
.items dd .en{display:block;margin-top:.5em}
@media (min-width:820px){
  .items{display:grid;grid-template-columns:220px 1fr;column-gap:40px}
  .items dt{padding:26px 0;border-bottom:1px solid var(--line-2)}
  .items dd{padding:26px 0 26px;max-width:none}
}

/* ---------- contact ---------- */
.contact>div{min-width:0}
#form h2{margin-bottom:.6em}
#form iframe{width:100%!important}
.contact-one{max-width:760px}
#form .hint{max-width:30em}
#form .hint.en{margin-bottom:1.5em}
#form-open{border:0;cursor:pointer;font-family:inherit;font-size:inherit;font-weight:500;text-align:left;margin-right:20px}  /* 不用 font:inherit——它会连 line-height 一起重置，让这个按钮比别的 .btn 高 */
#form-open[aria-expanded="true"]{background:var(--soft);color:var(--deep);box-shadow:inset 0 0 0 1px var(--line-2)}
#form-open[aria-expanded="true"]:hover{background:var(--tint);transform:none;box-shadow:inset 0 0 0 1px var(--line-2)}
#form-body{margin-top:24px;border:1px solid var(--line-2);border-radius:8px;padding:8px 8px 0;background:#fff}
#form-body[hidden]{display:none}

/* ---------- deep ---------- */
.sec.deep{background:var(--deep);color:#fff}
.sec.deep .en,.sec.deep h2 span,.sec.deep p,.sec.deep .disc{color:rgba(255,255,255,.72)}
.sec.deep h2,.sec.deep h3,.sec.deep b{color:#fff}
.sec.deep .nums b{color:#8FE0D6}
.sec.deep a{color:#8FE0D6}
.sec.deep .btn{background:#fff;color:var(--deep)}
.sec.deep .btn:hover{background:#E6F6F4;color:var(--deep)}
.sec.deep .more{color:#8FE0D6}

/* ---------- footer ---------- */
.ft{background:var(--soft);border-top:1px solid var(--line-2);padding:16px 0 10px;font-size:12.5px;color:var(--grey);line-height:1.6}
.ft .wrap{max-width:var(--w)}
.ft-logo{height:36px;width:auto;margin-bottom:10px}
.ft .cols{display:grid;grid-template-columns:auto auto auto;justify-content:start;gap:16px 48px}
.ft p{margin:0 0 .5em}
.ft .nw{white-space:nowrap}
.ft a{color:var(--grey);text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;transition:text-decoration-color .2s,color .2s}
.ft a:hover{color:var(--teal-s);text-decoration-color:var(--teal)}
.ft .small{font-size:11.5px;color:var(--mute)}
.ft .en{font-size:12px}

/* ---------- motion ---------- */
.js .rv{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .js .rv{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .four{grid-template-columns:repeat(2,1fr)}
  .cards{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:40px}
  .split-img{max-width:520px}
  .ft .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  :root{--s1:14px;--s2:20px;--s3:22px}
  .sec.cta{padding:20px 0 22px}
  body{font-size:16px}
  .wrap{padding:0 20px}
  .hero-sec{padding:18px 0 12px}
  h1.hero{font-size:42px}
  h1.hero.small{font-size:32px}
  h1.hero span{font-size:16px}
  h2{font-size:25px}
  .lead{font-size:18px}
  .txt p{font-size:16.5px}
  .hd .wrap{height:auto;padding:14px 20px 12px;flex-wrap:wrap;gap:8px}
  .hd .logo img{height:38px}
  .ft-logo{height:32px}
  .hd nav{gap:0;width:100%;justify-content:space-between}
  .hd nav a{font-size:14px}
  .hd nav a span{display:none}
  .three,.two{grid-template-columns:1fr;gap:28px}
  .four{grid-template-columns:1fr 1fr;gap:28px 20px}
  .cards{grid-template-columns:1fr;gap:14px}
  .nums b{font-size:38px}
  .brands{gap:24px 32px}
  .brands img{height:32px}
  figure.ph.bleed img{height:40vh;min-height:240px}
  figure.ph.bleed.pos-b img{height:40vh;min-height:240px;max-height:none}
  figure.ph.banner{padding:0 20px}
  figure.ph.banner::after{left:20px;right:20px}
  figure.ph.wide{margin-top:36px}
  .ft .cols{grid-template-columns:1fr}
  .btn{margin-right:0;margin-bottom:12px}
}

/* ---------- v2 插画配图（2026-09-20）：平面线描插画，米白底 #F7F5F0。关掉照片用的调色与裁切，插画完整显示 ---------- */
figure.ph{background:#F7F5F0}
figure.ph::after,figure.ph.banner::after{display:none}
figure.ph img,figure.ph.bleed img,figure.ph.wide img,figure.ph.banner img,.split-img img{filter:none;object-fit:contain;object-position:50% 50%}
figure.ph.banner{background:none}
figure.ph.banner img{background:#F7F5F0}
figure.ph figcaption{background:none;color:var(--grey);left:16px;bottom:10px;padding:0}

/* ---------- 核心原料（2026-09-22） ---------- */
.core-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.core-card{display:flex;flex-direction:column;color:var(--ink);background:#fff;border:1px solid var(--line-2);border-radius:8px;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s}
.core-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent;color:var(--ink)}
.core-card figure{border-radius:0;background:#F7F5F0}
.core-card figure img{aspect-ratio:3/1;object-fit:cover}
.core-card>div{display:flex;flex-direction:column;padding:16px 18px 14px;flex:1}
.core-card i{font-style:normal;color:var(--teal-s);font-size:12px;font-weight:500;letter-spacing:.08em;margin-bottom:6px}
.core-card h3{margin:0 0 .4em;font-size:18px;transition:color .2s}
.core-card:hover h3{color:var(--teal-s)}
.core-card p{margin:0;font-size:14px;line-height:1.6}
.core-card .cnt{display:block;margin-top:auto;padding-top:12px;font-size:12.5px;font-weight:500;color:var(--mute);letter-spacing:.04em}
.core-head{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:36px;align-items:start}
.core-img img{aspect-ratio:3/1;object-fit:cover}
.core-facts .generic{font-size:15px;margin:0 0 10px}
.core-facts .generic .en{display:block}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;margin:0 0 12px;font-size:14px;border-top:1px solid var(--line-2);padding-top:10px}
.kv dt{color:var(--grey);font-weight:500;white-space:nowrap}
.kv dd{margin:0}
.badges{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 14px}
.badges span{font-size:12px;font-weight:500;color:var(--deep);background:var(--tint);border:1px solid var(--sand);border-radius:20px;padding:3px 10px}
.steps{list-style:none;counter-reset:s;margin:14px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:8px 12px;max-width:none}
.steps li{counter-increment:s;font-size:14px;line-height:1.5;padding:10px 12px 10px 36px;position:relative;background:var(--soft);border-radius:6px}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:12px;top:11px;font-size:12px;font-weight:600;color:var(--teal-s);font-feature-settings:"tnum"}
.steps li span{display:block;color:var(--grey);font-size:12.5px}
.studies{list-style:none;margin:0 0 18px;padding:0;border-top:1px solid var(--line-2)}
.studies li{display:grid;grid-template-columns:72px 1fr;gap:16px;padding:12px 0;border-bottom:1px solid var(--line-2)}
.studies b{color:var(--teal-s);font-weight:600;font-feature-settings:"tnum"}
.studies p{margin:0;font-size:15px}
.studies p.en{font-size:13.5px}
.studies p + p.en{margin-bottom:6px}
.ip,.docs{list-style:none;margin:0;padding:0}
.ip li{padding:6px 0;border-bottom:1px solid rgba(14,79,74,.12);font-size:14.5px}
.ip b{display:block;color:var(--deep);font-weight:600;font-feature-settings:"tnum"}
.ip span{display:block;color:var(--grey);font-size:13px}
.docs li{display:grid;grid-template-columns:1fr auto;gap:4px 24px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line-2);font-size:15px}
.docs b{font-weight:500}
.docs span{grid-column:1;color:var(--grey);font-size:13px}
.docs a{grid-column:2;grid-row:1/3;font-size:14px}
.sec.deep .more{color:#8FE0D6}
@media (max-width:1000px){.core-cards{grid-template-columns:repeat(2,1fr)}.core-head{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){.core-cards{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.studies li{grid-template-columns:1fr;gap:4px}.kv{grid-template-columns:1fr;gap:2px}.kv dt{margin-top:6px}}

/* ---------- 联系页：表单与直接联系左右并排；二维码在直接联系块内并排 ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px 64px;align-items:start}
.ways{font-size:15px;line-height:1.5}
.ways h2{margin-bottom:.5em}
.ways .en{font-size:13.5px}
.ways-grid{display:grid;grid-template-columns:auto auto;justify-content:start;gap:12px 28px;align-items:start}
.ways-grid>div{grid-column:1/-1}
.ways .tel{font-size:19px;font-weight:500;color:var(--ink);font-feature-settings:"tnum";letter-spacing:.01em}
.ways .tel:hover{color:var(--teal-s)}
.ways p{margin-bottom:.45em}
.qr{text-align:center}
.qr img{width:128px;height:128px;border:1px solid var(--line-2);border-radius:var(--r);padding:6px;background:#fff;margin:0 auto}
.qr figcaption{font-size:12.5px;line-height:1.4;margin-top:6px;color:var(--ink)}
.qr figcaption .en{display:block;font-size:11.5px}
@media (max-width:1000px){.contact-grid{grid-template-columns:1fr;gap:36px}.ways{padding-top:32px;border-top:1px solid var(--line-2)}}
@media (max-width:720px){.ways{padding-top:24px}.ways-grid{grid-template-columns:1fr 1fr;justify-content:stretch;gap:12px 16px}.qr img{width:100%;max-width:150px;height:auto}}