/* =========================================================
   河北蓁华食品 · 官网样式 v3
   令牌：冷调近白底 + 深青墨 + 蜂蜜琥珀 + 植物露绿
   字体：Fraunces(拉丁展示) / Noto Serif SC(中文标题) /
        Noto Sans SC(正文) / Space Mono(技术标签)
   动效：入场编排 / 滚动揭示 / 视差 / 3D 倾斜 / 光标聚光
        （全部尊重 prefers-reduced-motion）
   ========================================================= */

:root{
  --paper:#F3F5F2;        /* 冷调近白 */
  --paper-2:#E9EEE9;      /* 略深表面 */
  --ink:#12211D;          /* 近黑墨绿（主文字） */
  --teal:#0C3B36;         /* 深青（品牌深） */
  --teal-soft:#15534B;
  --honey:#D99A45;        /* 蜂蜜琥珀（唯一暖色强调） */
  --honey-deep:#B97E2E;
  --dew:#5C8A72;          /* 植物露绿（次强调） */
  --muted:#5A6A63;        /* 次级文字 */
  --line:rgba(18,33,29,.12);
  --line-strong:rgba(18,33,29,.22);
  --maxw:1920px;          /* 内容宽度上限：宽屏下铺满，超宽屏才留白 */
  --r:14px;
  --shadow-s:0 18px 40px -26px rgba(12,59,54,.5);
  --shadow-l:0 30px 60px -34px rgba(12,59,54,.6);
  /* 字体族：本体为自托管子集字体（见 fonts.css），后面接系统字体兜底。
     注意 --latin / --mono 是拉丁专用字体，本身没有汉字字形，
     所以必须在后面补上中文字体，否则里面的汉字会掉到系统默认字体。 */
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --latin:"Fraunces","Noto Serif SC","Source Han Serif SC",Georgia,serif;
  --mono:"Space Mono","Noto Sans SC",ui-monospace,monospace;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
em{font-style:normal}

/* ---------- 全局层次：纹理 + 进度 ---------- */
.grain{
  position:fixed;inset:0;z-index:3;pointer-events:none;opacity:.035;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='140' height='140' filter='url(%23n)'/></svg>");
}
.progress{
  position:fixed;top:0;left:0;height:3px;width:100%;z-index:60;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--dew),var(--honey),var(--honey-deep));
}

/* ---------- 通用排版 ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--honey-deep);
  margin-bottom:1.1rem;
  display:flex;align-items:center;gap:.7rem;
}
.eyebrow::before{
  content:"";width:20px;height:1px;background:currentColor;opacity:.7;
  transform:scaleX(0);transform-origin:0 50%;transition:transform .7s var(--ease) .15s;
}
.reveal.in .eyebrow::before,.hero .eyebrow::before{transform:scaleX(1)}
.section__title{
  font-family:var(--serif);
  font-weight:600;
  font-size:clamp(1.5rem,3.4vw,2.5rem);
  line-height:1.32;
  letter-spacing:.01em;
  max-width:16em;
  text-wrap:balance;      /* 窄屏兜底：自动均衡各行字数，避免末字孤行 */
}
.section__head{margin-bottom:2.6rem}
.section{
  position:relative;
  max-width:var(--maxw);
  margin:0 auto;
  padding:clamp(4rem,9vw,7rem) clamp(1.2rem,4vw,2rem);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-weight:500;font-size:.95rem;
  padding:.85rem 1.6rem;border-radius:999px;
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease),box-shadow .3s var(--ease);
  cursor:pointer;border:1px solid transparent;will-change:transform;
}
.btn--solid{background:var(--teal);color:#fff;box-shadow:0 14px 30px -18px rgba(12,59,54,.75)}
.btn--solid:hover{background:var(--teal-soft);box-shadow:0 20px 38px -18px rgba(12,59,54,.8)}
.btn--ghost{border-color:var(--line-strong);color:var(--ink)}
.btn--ghost:hover{border-color:var(--teal);color:var(--teal)}
.btn--block{width:100%}

/* ---------- 入场编排 ---------- */
@keyframes riseIn{
  from{opacity:0;transform:translateY(26px);filter:blur(7px)}
  to{opacity:1;transform:none;filter:blur(0)}
}
.anim{animation:riseIn .95s var(--ease) both;animation-delay:var(--d,0s)}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(243,245,242,.78);
  backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease,background .3s ease,box-shadow .3s ease;
}
.nav.is-scrolled{border-bottom-color:var(--line);box-shadow:0 10px 30px -24px rgba(12,59,54,.6)}
.nav__inner{
  max-width:var(--maxw);margin:0 auto;
  display:flex;align-items:center;gap:1.5rem;
  padding:.9rem clamp(1.2rem,4vw,2rem);
}
.brand{display:flex;align-items:baseline;gap:.45rem;margin-right:auto}
.brand__zh{font-family:var(--serif);font-weight:700;font-size:1.35rem;color:var(--teal);letter-spacing:.04em}
.brand__en{font-family:var(--mono);font-size:.62rem;letter-spacing:.3em;color:var(--muted)}
.nav__links{display:flex;gap:1.7rem}
.nav__links a{font-size:.92rem;color:var(--ink);position:relative;padding:.2rem 0}
.nav__links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--honey);transition:width .3s var(--ease);
}
.nav__links a:hover::after{width:100%}
.nav__cta{
  font-size:.85rem;font-weight:500;color:#fff;background:var(--honey-deep);
  padding:.55rem 1.15rem;border-radius:999px;transition:background .3s ease,box-shadow .3s ease;
}
.nav__cta:hover{background:var(--honey);box-shadow:0 12px 24px -14px var(--honey-deep)}
.nav__toggle{display:none;background:none;border:1px solid var(--line-strong);border-radius:8px;padding:.4rem .8rem;font-family:var(--sans);font-size:.85rem;cursor:pointer}
.nav__mobile{display:none;flex-direction:column;border-top:1px solid var(--line);background:var(--paper)}
.nav__mobile a{padding:.9rem clamp(1.2rem,4vw,2rem);border-bottom:1px solid var(--line);font-size:.95rem}

/* ---------- HERO ---------- */
.hero{
  position:relative;overflow:hidden;
  max-width:var(--maxw);margin:0 auto;
  padding:clamp(3.5rem,8vw,6.5rem) clamp(1.2rem,4vw,2rem) clamp(4rem,8vw,6.5rem);
  min-height:min(78vh,720px);
  display:flex;flex-direction:column;justify-content:center;
}
.hero__inner{position:relative;z-index:2;max-width:780px}
.hero__title{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(2.4rem,6.4vw,4.6rem);
  line-height:1.1;letter-spacing:.01em;margin-bottom:1.6rem;
}
.hero__title span{display:block}
.hero__title em{
  font-family:var(--latin);font-style:italic;font-weight:500;
  background:linear-gradient(100deg,var(--honey-deep),var(--honey),var(--dew),var(--honey-deep));
  background-size:280% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shimmer 9s linear infinite;
}
@keyframes shimmer{to{background-position:280% 0}}
.hero__lede{font-size:clamp(1rem,1.6vw,1.15rem);color:var(--muted);max-width:30em;margin-bottom:2.2rem}
.hero__actions{display:flex;flex-wrap:wrap;gap:.9rem}

/* 舞台：视差层 + 光环 + 气泡 + 光标聚光 */
.hero__stage{position:absolute;inset:0;z-index:1;pointer-events:none}
.halo{
  position:absolute;width:min(78vw,760px);aspect-ratio:1;right:-16%;top:-22%;border-radius:50%;
  background:conic-gradient(from 0deg,rgba(217,154,69,.28),rgba(92,138,114,.22),rgba(12,59,54,.24),rgba(217,154,69,.28));
  filter:blur(46px);opacity:.7;
  animation:spin 46s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.bloom{position:absolute;border-radius:50%;filter:blur(10px);opacity:.92;transition:transform .6s var(--ease)}
.bloom--a{
  width:44vw;max-width:540px;aspect-ratio:1;right:-6%;top:6%;
  background:radial-gradient(circle at 35% 35%,rgba(217,154,69,.95),rgba(217,154,69,0) 62%);
  animation:morph 18s ease-in-out infinite,drift 13s ease-in-out infinite;
}
.bloom--b{
  width:32vw;max-width:400px;aspect-ratio:1;right:8%;top:28%;
  background:radial-gradient(circle at 60% 40%,rgba(12,59,54,.5),rgba(12,59,54,0) 60%);
  animation:morph 22s ease-in-out infinite reverse,drift 16s ease-in-out infinite;
}
.bloom--c{
  width:19vw;max-width:230px;aspect-ratio:1;right:26%;top:4%;
  background:radial-gradient(circle at 50% 50%,rgba(92,138,114,.52),rgba(92,138,114,0) 65%);
  animation:morph 16s ease-in-out infinite;
}
.spot{
  position:absolute;width:420px;height:420px;left:20%;top:30%;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.55),rgba(255,255,255,0) 68%);
  opacity:0;transition:opacity .5s ease;transform:translate(-50%,-50%);
}
.hero:hover .spot{opacity:1}
.bubble{position:absolute;bottom:6%;border-radius:50%;background:rgba(255,255,255,.6);box-shadow:inset 0 0 6px rgba(12,59,54,.18)}
.bubble.b1{width:14px;height:14px;right:18%;animation:rise 9s ease-in infinite}
.bubble.b2{width:9px;height:9px;right:30%;animation:rise 11s ease-in infinite 1.5s}
.bubble.b3{width:11px;height:11px;right:42%;animation:rise 8s ease-in infinite 3s}
.bubble.b4{width:7px;height:7px;right:26%;animation:rise 13s ease-in infinite .8s}
.bubble.b5{width:5px;height:5px;right:36%;animation:rise 10s ease-in infinite 4.2s}

@keyframes morph{
  0%,100%{border-radius:48% 52% 55% 45% / 52% 48% 52% 48%}
  33%{border-radius:60% 40% 45% 55% / 45% 60% 40% 55%}
  66%{border-radius:42% 58% 60% 40% / 58% 42% 58% 42%}
}
@keyframes drift{0%,100%{translate:0 0}50%{translate:0 -20px}}
@keyframes rise{
  0%{transform:translateY(0);opacity:0}
  15%{opacity:.9}
  100%{transform:translateY(-240px);opacity:0}
}

.hero__scroll{display:flex;align-items:center;gap:.7rem;margin-top:clamp(2.5rem,5vw,4rem)}
.hero__scroll-line{position:relative;width:1px;height:44px;background:var(--line-strong);overflow:hidden}
.hero__scroll-line::after{
  content:"";position:absolute;left:0;top:-100%;width:100%;height:100%;
  background:var(--honey-deep);animation:trace 2.4s ease-in-out infinite;
}
@keyframes trace{0%{top:-100%}60%,100%{top:100%}}
.hero__scroll-txt{font-family:var(--mono);font-size:.68rem;letter-spacing:.2em;color:var(--muted);text-transform:uppercase}

/* ---------- 跑马灯 ---------- */
.marquee{
  position:relative;z-index:2;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--paper-2);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.marquee__track{display:flex;width:max-content;animation:slide 34s linear infinite}
.marquee__set{
  font-family:var(--serif);font-size:clamp(.95rem,1.6vw,1.15rem);letter-spacing:.06em;
  color:var(--teal);padding:1.1rem 1.4rem;white-space:nowrap;
}
@keyframes slide{to{transform:translateX(-50%)}}

/* ---------- 环境光斑（层次） ---------- */
.glow{position:absolute;z-index:0;border-radius:50%;filter:blur(60px);pointer-events:none}
.glow--about{width:380px;height:380px;left:-10%;top:6%;background:radial-gradient(circle,rgba(92,138,114,.22),transparent 68%)}
.glow--products{width:420px;height:420px;right:-12%;top:14%;background:radial-gradient(circle,rgba(217,154,69,.2),transparent 68%)}
.section > *:not(.glow){position:relative;z-index:1}

/* ---------- ABOUT ---------- */
.about__manifesto{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(1.15rem,2.2vw,1.6rem);line-height:1.6;
  max-width:26em;color:var(--ink);margin-bottom:3rem;
  text-wrap:pretty;
}
.lines{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem}
.line-card{
  position:relative;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--r);padding:2rem 1.8rem;overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s ease;
}
.line-card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(340px circle at var(--mx,50%) var(--my,0%),rgba(217,154,69,.16),transparent 62%);
  opacity:0;transition:opacity .35s ease;
}
.line-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-s);border-color:var(--line-strong)}
.line-card:hover::after{opacity:1}
.line-card__title{font-family:var(--serif);font-weight:600;font-size:1.4rem;margin-bottom:.8rem}
.line-card__desc{color:var(--muted);font-size:.96rem}

/* ---------- PRODUCTS ---------- */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem;perspective:1100px}
.product{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r);padding:1.9rem 1.7rem;
  transform-style:preserve-3d;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s ease;
}
.product::before{
  content:"";position:absolute;left:0;top:0;height:100%;width:4px;
  background:linear-gradient(var(--honey),var(--dew));transform:scaleY(0);transform-origin:top;
  transition:transform .45s var(--ease);
}
.product::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(400px circle at var(--mx,50%) var(--my,0%),rgba(217,154,69,.18),transparent 60%);
  opacity:0;transition:opacity .4s ease;
}
.product:hover{box-shadow:var(--shadow-l);border-color:var(--line-strong)}
.product:hover::before{transform:scaleY(1)}
.product:hover::after{opacity:1}
.product > *{transform:translateZ(24px)}
.product__top{display:flex;justify-content:flex-end;align-items:center;margin-bottom:1.3rem}
.product__chip{font-size:.72rem;font-weight:500;color:var(--teal-soft);background:rgba(92,138,114,.14);padding:.25rem .7rem;border-radius:999px}
.product__name{font-family:var(--serif);font-weight:600;font-size:1.3rem;margin-bottom:.7rem}
.product__desc{color:var(--muted);font-size:.94rem}
.products__note{margin-top:1.8rem;font-family:var(--mono);font-size:.72rem;color:var(--muted);letter-spacing:.04em}

/* ---------- R&D FLOW ---------- */
/* 深青为整块实色面板，同样的留白会显得空，故单独收紧上下内边距 */
.rd{
  background:var(--teal);color:#EAF1EE;
  padding-top:clamp(2.75rem,5.5vw,4rem);
  padding-bottom:clamp(2.75rem,5.5vw,4rem);
}
.rd .eyebrow{color:var(--honey)}
.rd .section__title{color:#fff}
.flow{position:relative;list-style:none;margin-top:2.6rem;display:grid;gap:0}
.flow__step{
  display:grid;grid-template-columns:auto 1fr;gap:1.6rem;
  padding:1.8rem 0;border-top:1px solid rgba(255,255,255,.14);
  align-items:start;position:relative;
  transition:background .4s ease;
}
.flow__step:last-child{border-bottom:1px solid rgba(255,255,255,.14)}
.flow__step::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:0;
  background:linear-gradient(90deg,rgba(217,154,69,.14),transparent);
  transition:width .5s var(--ease);
}
.flow__step:hover::before{width:40%}
.flow__no{font-family:var(--latin);font-weight:600;font-size:1.6rem;color:var(--honey);line-height:1}
.flow__title{font-family:var(--serif);font-weight:600;font-size:1.25rem;color:#fff;margin-bottom:.5rem}
.flow__body p{color:rgba(234,241,238,.78);font-size:.96rem;max-width:34em}

/* ---------- PARTNER ---------- */
.partner__inner{display:grid;grid-template-columns:1.1fr .9fr;gap:3rem;align-items:start}
.partner__desc{margin:1.4rem 0 1.8rem;color:var(--muted);max-width:26em}
.partner__list{list-style:none;display:flex;flex-wrap:wrap;gap:.7rem}
.partner__list li{
  font-size:.85rem;color:var(--teal-soft);border:1px solid var(--line-strong);
  padding:.45rem .95rem;border-radius:999px;background:var(--paper-2);
  transition:transform .3s var(--ease),border-color .3s ease,background .3s ease;
}
.partner__list li:hover{transform:translateY(-3px);border-color:var(--honey);background:#fff}
/* 合作意向面板（腾讯问卷入口）：宽屏下限制宽度，不让内容被拉得过长 */
.partner__card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:2rem 1.8rem;box-shadow:var(--shadow-l);
  width:100%;max-width:560px;margin-left:auto;
}
.form__title{font-family:var(--serif);font-weight:600;font-size:1.2rem;margin-bottom:1.4rem}
.survey__tag{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--honey-deep);margin-bottom:.9rem;
}
.survey__desc{margin-bottom:1.7rem;color:var(--muted);font-size:.96rem;max-width:30em}
.survey__alt{margin-top:1.15rem;font-size:.85rem;color:var(--muted);line-height:1.8}
.survey__alt a{
  color:var(--teal-soft);border-bottom:1px solid transparent;
  transition:color .25s ease,border-color .25s ease;
}
.survey__alt a:hover{color:var(--teal);border-color:var(--honey)}

/* ---------- 个人中心 ---------- */
/* 独立板块：上下留白单独收紧，避免一张薄卡浮在大片纸白上 */
.personal{
  padding-top:clamp(2.5rem,4.5vw,3.5rem);
  padding-bottom:clamp(2.5rem,4.5vw,3.5rem);
}
.personal__card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,auto) auto;
  align-items:center;gap:clamp(1.5rem,3vw,3rem);
  background:#fff;border:1px solid var(--line-strong);border-radius:var(--r);
  padding:clamp(1.9rem,3.4vw,2.7rem) clamp(1.6rem,4vw,2.8rem);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s ease;
}
/* 卡内液绽：呼应 Hero 的签名元素 */
.personal__bloom{
  position:absolute;width:440px;height:440px;right:-8%;top:-46%;border-radius:50%;
  pointer-events:none;
  background:radial-gradient(circle,rgba(217,154,69,.24),rgba(217,154,69,0) 66%);
  filter:blur(10px);
}
.personal__card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:5px;
  background:linear-gradient(var(--honey),var(--dew));
}
.personal__card::after{
  content:"";position:absolute;top:0;bottom:0;width:45%;
  background:linear-gradient(105deg,transparent,rgba(217,154,69,.16),transparent);
  transform:translateX(-160%) skewX(-12deg);transition:transform .8s var(--ease);
}
.personal__card:hover{transform:translateY(-5px);box-shadow:var(--shadow-l);border-color:var(--honey)}
.personal__card:hover::after{transform:translateX(240%) skewX(-12deg)}
.personal__text{position:relative;z-index:1}
.personal__text .eyebrow{margin-bottom:.8rem}
.personal__desc{margin-top:.9rem;color:var(--muted);max-width:32em}
/* 模块标签：说明个人中心里有什么，同时把卡面中段填满 */
.personal__modules{
  position:relative;z-index:1;list-style:none;
  display:flex;flex-wrap:wrap;gap:.6rem;align-content:center;
}
.personal__modules li{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;white-space:nowrap;
  color:var(--teal-soft);background:var(--paper);border:1px solid var(--line-strong);
  padding:.45rem .85rem;border-radius:999px;
  transition:border-color .3s ease,background .3s ease;
}
.personal__card:hover .personal__modules li{border-color:rgba(217,154,69,.55);background:#fff}
.personal__go{
  position:relative;z-index:1;
  display:inline-flex;align-items:center;gap:.55rem;
  font-weight:500;font-size:.95rem;color:#fff;background:var(--teal);
  padding:.85rem 1.5rem;border-radius:999px;
  transition:background .3s ease;
}
.personal__card:hover .personal__go{background:var(--teal-soft)}
.personal__go svg{transition:transform .3s var(--ease)}
.personal__card:hover .personal__go svg{transform:translate(3px,-3px)}

/* ---------- CONTACT ---------- */
.contact__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.contact__item{
  display:flex;flex-direction:column;gap:.4rem;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r);padding:1.5rem 1.6rem;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s ease;
}
.contact__item:hover{transform:translateY(-4px);box-shadow:var(--shadow-s);border-color:var(--line-strong)}
.contact__k{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--honey-deep)}
.contact__v{font-family:var(--serif);font-weight:500;font-size:1.1rem;word-break:break-word}
.contact__v--link{position:relative;display:inline-block;width:fit-content}
.contact__v--link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--teal-soft);
  transition:width .3s var(--ease);
}
.contact__v--link:hover{color:var(--teal-soft)}
.contact__v--link:hover::after{width:100%}

/* ---------- FOOTER ---------- */
.footer{border-top:1px solid var(--line);background:var(--paper-2)}
.footer__inner{
  max-width:var(--maxw);margin:0 auto;padding:2.2rem clamp(1.2rem,4vw,2rem);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;
}
.brand--foot .brand__zh{font-size:1.1rem}
.footer__meta{display:flex;align-items:center;gap:1.2rem;flex-wrap:wrap}
.footer__copy{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted)}
.footer__icp{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--muted);
  border-bottom:1px solid transparent;
  transition:color .25s ease,border-color .25s ease;
}
.footer__icp:hover{color:var(--teal);border-bottom-color:var(--teal)}

/* ---------- 滚动揭示（含错峰延迟） ---------- */
.reveal{
  opacity:0;transform:translateY(26px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  transition-delay:var(--d,0s);
}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */

/* 宽屏（≥1400）：放大字号，让铺满后的版面依然有分量 */
@media (min-width:1400px){
  .hero__title{font-size:clamp(4.6rem,4.8vw,5.4rem)}
  .hero__lede{font-size:clamp(1.15rem,1.1vw,1.35rem)}
  .section__title{font-size:clamp(2.5rem,2.4vw,3.1rem)}
}

/* 宽屏（≥1000）：关于蓁华改为左宣言 / 右双卡，避免单行卡片被拉得过散 */
@media (min-width:1000px){
  .about__body{
    display:grid;
    grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);
    gap:clamp(2rem,4vw,3.5rem);
    align-items:start;
  }
  .about__manifesto{margin-bottom:0}
}

/* 宽屏（≥1100）：研发四步改为 2×2 卡片，铺满宽度 */
@media (min-width:1100px){
  .flow{grid-template-columns:repeat(2,1fr);gap:1rem}
  .flow__step{
    border:1px solid rgba(255,255,255,.14);border-radius:var(--r);
    padding:1.7rem 1.6rem;overflow:hidden;
  }
  .flow__step:last-child{border-bottom:1px solid rgba(255,255,255,.14)}
}

/* 宽屏（≥1200）：5 项产品呈 3+2 排布，联系方式 4 列 */
@media (min-width:1200px){
  .grid{grid-template-columns:repeat(3,1fr)}
  .contact__grid{grid-template-columns:repeat(4,1fr)}
}

/* 超宽（≥1560）：5 项产品一行排开 */
@media (min-width:1560px){
  .grid{grid-template-columns:repeat(5,1fr)}
}

@media (max-width:1199px){
  .grid,.contact__grid{grid-template-columns:repeat(2,1fr)}
  .personal__card{grid-template-columns:1fr;justify-items:start;gap:1.5rem}
}

@media (max-width:860px){
  .nav__links,.nav__cta{display:none}
  .nav__toggle{display:inline-block}
  .nav__mobile.open{display:flex}
  .partner__inner{grid-template-columns:1fr;gap:2rem}
  .hero__stage{opacity:.65}
  .bloom--a{right:-34%;top:0}
  .halo{right:-40%;top:-14%}
  .grid{perspective:none}
  .product > *{transform:none}
}

@media (max-width:640px){
  .grid,.contact__grid,.lines{grid-template-columns:1fr}
}

@media (max-width:520px){
  .flow__step{grid-template-columns:1fr;gap:.5rem}
}

/* ---------- 可访问性：尊重减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .anim{opacity:1;transform:none;filter:none}
  .reveal{opacity:1;transform:none;transition:none}
  .bloom{transition:none}
  .hero__title em{background:none;-webkit-text-fill-color:currentColor;color:var(--honey-deep)}
}
:focus-visible{outline:2px solid var(--honey);outline-offset:3px;border-radius:4px}