/* =========================================================
   谷禾甜 · 舒兰大米官网
   纯静态，无外部依赖 / 无网络字体
   ========================================================= */

:root{
  --ink:#16241d;
  --green:#1f4434;
  --green-2:#2b5c46;
  --green-3:#3f7259;
  --gold:#c2913c;
  --gold-2:#e0b463;
  --gold-3:#f0d6a4;
  --paper:#fbf7ef;
  --paper-2:#f3ead8;
  --paper-3:#ece0c8;
  --line:rgba(31,68,52,.14);
  --line-strong:rgba(31,68,52,.24);
  --muted:#5f6b5f;
  --muted-2:#7d877c;
  --white:#fffdf8;
  --shadow-sm:0 2px 10px rgba(30,44,34,.06);
  --shadow-md:0 18px 40px -22px rgba(24,46,34,.34);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --max:1120px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  background-image:
    radial-gradient(900px 520px at 82% -8%,rgba(224,180,99,.20),transparent 62%),
    radial-gradient(760px 520px at -6% 12%,rgba(63,114,89,.10),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body.nav-open{overflow:hidden}

h1,h2,h3,h4{
  font-family:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
  font-weight:700;
  line-height:1.28;
  letter-spacing:.01em;
  margin:0;
}

p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit}

::selection{background:rgba(224,180,99,.45);color:var(--ink)}

:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
  border-radius:4px;
}

.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px}
.wrap-narrow{max-width:820px}

section[id]{scroll-margin-top:84px}
@media (min-width:960px){section[id]{scroll-margin-top:96px}}

.skip{
  position:absolute;left:-9999px;top:0;z-index:300;
  background:var(--green);color:#fff;padding:12px 18px;border-radius:0 0 12px 0;
}
.skip:focus{left:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  border:1px solid transparent;
  padding:11px 22px;
  font-size:15px;font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:transform .18s var(--ease),background-color .18s var(--ease),
             color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
  white-space:nowrap;
}
.btn-solid{
  background:var(--green);color:#fdf8ec;
  box-shadow:0 10px 24px -14px rgba(31,68,52,.9);
}
.btn-solid:hover{background:var(--green-2);transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(31,68,52,.8)}
.btn-solid:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--green);border-color:var(--line-strong);
}
.btn-ghost:hover{border-color:var(--green);background:rgba(31,68,52,.05)}
.btn-line{
  border-color:var(--line-strong);color:var(--green);
}
.btn-line:hover{border-color:var(--green);background:rgba(31,68,52,.05)}
.btn-lg{padding:14px 28px;font-size:16px}

/* ---------- 顶栏 ---------- */
.site-head{
  position:sticky;top:0;z-index:120;
  background:rgba(251,247,239,.82);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid rgba(31,68,52,.08);
  transition:box-shadow .25s var(--ease),background-color .25s var(--ease);
}
.site-head.scrolled{box-shadow:0 10px 30px -24px rgba(24,46,34,.6);background:rgba(251,247,239,.94)}

.head-inner{
  display:flex;align-items:center;gap:18px;
  height:72px;
}

.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{width:40px;height:40px;flex:0 0 auto}
.brand-mark.small{width:34px;height:34px}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{
  font-family:"Songti SC","Noto Serif SC",Georgia,serif;
  font-size:21px;letter-spacing:.14em;color:var(--green);
}
.brand-text em{
  font-style:normal;font-size:9.5px;letter-spacing:.34em;
  color:var(--gold);font-weight:600;margin-top:3px;
}

.head-nav{display:flex;align-items:center;gap:4px;margin-left:20px}
.head-nav > a{
  position:relative;
  padding:8px 13px;border-radius:999px;
  font-size:15px;color:#33463a;font-weight:500;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.head-nav > a:not(.nav-cta):hover{color:var(--green);background:rgba(31,68,52,.06)}
.nav-cta{margin-left:6px}

.head-actions{display:flex;align-items:center;gap:10px;margin-left:auto}

.menu-btn{
  display:none;
  width:44px;height:44px;border:1px solid var(--line-strong);
  background:transparent;border-radius:12px;
  padding:0;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-btn span{
  display:block;width:19px;height:1.8px;background:var(--green);
  border-radius:2px;transition:transform .22s var(--ease),opacity .18s var(--ease);
}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}

/* ---------- 首屏 ---------- */
.hero{padding:38px 0 0}
.hero-grid{
  display:grid;grid-template-columns:1fr;
  gap:34px;align-items:center;
}

.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.2em;font-weight:600;
  color:var(--gold);text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow-line{display:inline-block;width:26px;height:1.5px;background:currentColor;flex:0 0 auto}

.hero h1{
  font-size:clamp(34px,9vw,54px);
  letter-spacing:.015em;
  color:var(--green);
}
.hero h1 .hl{
  color:var(--gold);
  position:relative;white-space:nowrap;
}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:.28em;
  background:linear-gradient(90deg,rgba(224,180,99,.28),rgba(224,180,99,.05));
  border-radius:3px;z-index:-1;
}
.lede{
  margin-top:18px;max-width:34em;
  font-size:16.5px;line-height:1.85;color:#3c4a3f;
}

.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

.chips{
  display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;
}
.chips li{
  font-size:13px;color:#41513f;
  padding:5px 12px;border-radius:999px;
  background:rgba(255,253,248,.72);
  border:1px solid var(--line);
}
.chips li::before{
  content:"";display:inline-block;width:5px;height:5px;border-radius:50%;
  background:var(--gold);margin-right:7px;vertical-align:1.5px;
}

.hero-visual{position:relative}
.hero-art{
  width:100%;height:auto;
  border-radius:26px;
  box-shadow:var(--shadow-md);
}
.float-card{
  position:absolute;
  display:flex;align-items:center;gap:11px;
  background:rgba(255,253,248,.94);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.7);
  border-radius:14px;
  padding:11px 15px;
  box-shadow:0 16px 34px -20px rgba(24,46,34,.55);
  font-size:12.5px;line-height:1.35;
}
.float-card strong{display:block;font-size:13.5px;color:var(--green);font-weight:700}
.float-card small{color:var(--muted-2);font-size:11.5px}
.fc-top{top:16px;left:-8px}
.fc-bottom{bottom:26px;right:-6px;color:var(--gold)}
.fc-dot{
  width:9px;height:9px;border-radius:50%;background:#5f9e6f;flex:0 0 auto;
  box-shadow:0 0 0 4px rgba(95,158,111,.18);
  animation:pulse 2.6s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 3px rgba(95,158,111,.18)}
  50%{box-shadow:0 0 0 7px rgba(95,158,111,.05)}
}

.hero-foot{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:32px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:12.5px;letter-spacing:.04em;color:var(--muted-2);
}
.dot-sep{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}

/* ---------- 通用区块 ---------- */
.section{padding:64px 0}
.section-tint{
  background:linear-gradient(180deg,rgba(243,234,216,.55),rgba(243,234,216,.22));
  border-top:1px solid rgba(31,68,52,.06);
  border-bottom:1px solid rgba(31,68,52,.06);
}

.sec-head{max-width:46em;margin-bottom:34px}
.sec-head h2{font-size:clamp(26px,5.4vw,38px);color:var(--green)}
.sec-lede{margin-top:14px;color:#44523f;font-size:16px;line-height:1.85}

/* ---------- 产地 ---------- */
.origin-grid{
  display:grid;grid-template-columns:1fr;gap:14px;
}
.feature{
  background:rgba(255,253,248,.78);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 20px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:var(--line-strong)}
.feature-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(31,68,52,.07);color:var(--green);
  margin-bottom:14px;
}
.feature-icon svg{width:23px;height:23px}
.feature h3{font-size:17.5px;margin-bottom:6px}
.feature p{font-size:14px;color:var(--muted);line-height:1.7}

.stat-band{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:1px;margin-top:22px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
}
.stat{
  background:var(--white);
  padding:20px 18px;
}
.stat strong{
  display:block;
  font-family:"Songti SC","Noto Serif SC",Georgia,serif;
  font-size:24px;color:var(--green);letter-spacing:.02em;
}
.stat span{display:block;margin-top:2px;font-size:12.5px;color:var(--muted-2);letter-spacing:.06em}

/* ---------- 产品 ---------- */
.product-grid{display:grid;grid-template-columns:1fr;gap:16px}
.product{
  display:flex;flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.product:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.product-art{
  background:
    radial-gradient(120px 90px at 78% 18%,rgba(224,180,99,.30),transparent 70%),
    linear-gradient(160deg,#f7efdd,#efe3ca);
  padding:26px 20px;
  display:flex;align-items:center;justify-content:center;
}
.product-art svg{width:112px;height:112px}
.product-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.tag{
  display:inline-block;align-self:flex-start;
  font-size:11.5px;letter-spacing:.12em;
  color:var(--gold);font-weight:600;
  border:1px solid rgba(194,145,60,.32);
  border-radius:999px;padding:2px 10px;margin-bottom:10px;
}
.product h3{font-size:21px}
.spec{margin-top:5px;font-size:13px;color:var(--green-3);letter-spacing:.02em}
.desc{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.75;flex:1}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:18px;font-size:14px;font-weight:600;color:var(--green);
  transition:gap .18s var(--ease),color .18s var(--ease);
}
.text-link:hover{gap:10px;color:var(--gold)}
.fine-print{
  margin-top:22px;font-size:12.5px;color:var(--muted-2);
  padding-left:14px;border-left:2px solid rgba(194,145,60,.4);
  line-height:1.7;
}

/* ---------- 一对一 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:36px;align-items:start}
.split-copy h2{font-size:clamp(26px,5.4vw,38px);color:var(--green)}
.check-list{margin:24px 0 28px;display:grid;gap:12px}
.check-list li{
  position:relative;padding-left:30px;
  font-size:15px;color:#3c4a3f;line-height:1.65;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.42em;
  width:18px;height:18px;border-radius:50%;
  background:rgba(31,68,52,.08);
}
.check-list li::after{
  content:"";position:absolute;left:5.5px;top:.72em;
  width:7px;height:4px;border-left:1.8px solid var(--green);border-bottom:1.8px solid var(--green);
  transform:rotate(-45deg);
}

.steps{display:grid;gap:2px;counter-reset:step}
.steps li{
  display:flex;gap:16px;
  padding:18px 0;
  border-bottom:1px dashed var(--line);
}
.steps li:last-child{border-bottom:0}
.step-no{
  flex:0 0 auto;
  font-family:"Songti SC","Noto Serif SC",Georgia,serif;
  font-size:15px;font-weight:700;color:var(--gold);
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(194,145,60,.4);
  background:rgba(224,180,99,.08);
}
.steps h3{font-size:16.5px;margin-bottom:3px}
.steps p{font-size:13.5px;color:var(--muted);line-height:1.7}

.compare{
  display:grid;grid-template-columns:1fr;gap:14px;
  margin-top:44px;
}
.compare-col{
  border-radius:var(--r-md);padding:24px 22px;
  border:1px solid var(--line);
}
.compare-col h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.compare-col li{
  position:relative;padding-left:22px;
  font-size:14px;line-height:1.7;margin-bottom:9px;color:#4a574a;
}
.compare-col li:last-child{margin-bottom:0}
.compare-col li::before{
  position:absolute;left:0;top:0;font-size:13px;font-weight:700;
}
.compare-old{background:rgba(120,110,95,.06);color:var(--muted-2)}
.compare-old h3{color:#7b7365}
.compare-old li::before{content:"—";color:#a8998a}
.compare-new{
  background:linear-gradient(160deg,rgba(31,68,52,.96),rgba(43,92,70,.96));
  border-color:transparent;color:#f2ede0;
  box-shadow:0 22px 44px -26px rgba(31,68,52,.9);
}
.compare-new h3{color:var(--gold-2)}
.compare-new li{color:#e8e3d4}
.compare-new li::before{content:"·";color:var(--gold-2);font-size:18px;top:-4px}

/* ---------- 助农 ---------- */
.section-dark{
  position:relative;
  background:
    radial-gradient(720px 420px at 88% 0%,rgba(224,180,99,.18),transparent 60%),
    radial-gradient(600px 380px at 0% 100%,rgba(63,114,89,.35),transparent 60%),
    linear-gradient(165deg,#173527 0%,#1b3b2c 55%,#152f23 100%);
  color:#efeadd;
  overflow:hidden;
}
.section-dark::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.sec-head-light{position:relative;z-index:1}
.sec-head-light h2{color:#fdf8ec}
.sec-head-light .sec-lede{color:#cfd8c9}
.eyebrow-light{color:var(--gold-2)}

.aid-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr;gap:14px;
  margin-bottom:34px;
}
.aid-card{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(224,180,99,.22);
  border-radius:var(--r-md);
  padding:22px 20px;
  transition:background-color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.aid-card:hover{background:rgba(255,255,255,.08);transform:translateY(-3px);border-color:rgba(224,180,99,.4)}
.aid-no{
  display:block;font-family:Georgia,serif;font-size:13px;letter-spacing:.18em;
  color:var(--gold-2);margin-bottom:12px;
}
.aid-card h3{font-size:18px;color:#fdf8ec;margin-bottom:7px}
.aid-card p{font-size:13.5px;line-height:1.75;color:#cbd5c6}

.aid-quote{
  position:relative;z-index:1;margin:0;
  padding:26px 24px;
  border-left:2px solid var(--gold-2);
  background:rgba(255,255,255,.035);
  border-radius:0 var(--r-md) var(--r-md) 0;
}
.aid-quote blockquote{
  margin:0;
  font-family:"Songti SC","Noto Serif SC",Georgia,serif;
  font-size:clamp(17px,3.4vw,22px);
  line-height:1.7;color:#f4efe1;letter-spacing:.01em;
}

/* ---------- 品质 ---------- */
.quality-grid{display:grid;grid-template-columns:1fr;gap:14px}
.quality-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.quality-item:last-child{border-bottom:0}
.q-ico{
  flex:0 0 auto;width:44px;height:44px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,rgba(224,180,99,.22),rgba(224,180,99,.06));
  color:var(--green);
}
.q-ico svg{width:22px;height:22px}
.quality-item h3{font-size:16.5px;margin-bottom:3px}
.quality-item p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:10px}
.faq details{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq details[open]{border-color:var(--line-strong);box-shadow:var(--shadow-sm)}
.faq summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;
  font-size:15.5px;font-weight:600;color:var(--green);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";flex:0 0 auto;
  width:11px;height:11px;
  border-right:1.8px solid var(--gold);border-bottom:1.8px solid var(--gold);
  transform:rotate(45deg) translate(-2px,-2px);
  transition:transform .22s var(--ease);
}
.faq details[open] summary::after{transform:rotate(-135deg) translate(-2px,-2px)}
.faq details p{
  padding:0 20px 20px;
  font-size:14.5px;line-height:1.8;color:#4a574a;
}

/* ---------- 联系 ---------- */
.contact-card{
  display:grid;grid-template-columns:1fr;gap:28px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:30px 24px;
  box-shadow:var(--shadow-md);
}
.contact-copy h2{font-size:clamp(24px,5vw,34px);color:var(--green)}
.contact-list{margin-top:26px;display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.contact-list li{
  background:var(--white);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:13px 16px;flex-wrap:wrap;
}
.c-label{font-size:12.5px;letter-spacing:.12em;color:var(--muted-2)}
.c-value{
  display:inline-flex;align-items:center;gap:10px;
  font-size:15.5px;font-weight:600;color:var(--green);
  font-variant-numeric:tabular-nums;
}
a.c-value:hover{color:var(--gold)}
.copy-btn{
  display:inline-flex;align-items:center;gap:4px;
  border:1px solid var(--line-strong);background:transparent;
  border-radius:999px;padding:3px 10px;
  font-size:11.5px;color:var(--muted);cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.copy-btn:hover{border-color:var(--gold);color:var(--gold);background:rgba(224,180,99,.08)}
.copy-btn.done{border-color:var(--green);color:var(--green);background:rgba(31,68,52,.07)}

.contact-qr{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px}
.qr-box{
  width:190px;max-width:100%;
  text-align:center;
  padding:14px;
  border-radius:var(--r-md);
  background:linear-gradient(160deg,#fbf7ef,#f4ecdc);
  border:1px solid var(--line);
}
.qr-box svg{width:100%;height:auto}
.qr-box p{margin-top:11px;font-size:12.5px;letter-spacing:.12em;color:var(--muted-2)}
.qr-hint{font-size:13px;color:var(--muted);letter-spacing:.02em}

/* ---------- 页脚 ---------- */
.site-foot{
  margin-top:40px;
  background:linear-gradient(170deg,#173527,#122b20);
  color:#cfd8c9;
  padding:38px 0 30px;
}
.foot-inner{display:grid;gap:20px}
.foot-brand{display:flex;align-items:center;gap:13px}
.foot-brand strong{
  display:block;font-family:"Songti SC","Noto Serif SC",Georgia,serif;
  font-size:19px;letter-spacing:.16em;color:#fdf8ec;
}
.foot-brand p{font-size:12.5px;color:#9fae9b;margin-top:2px}
.foot-nav{display:flex;flex-wrap:wrap;gap:6px 20px;font-size:13.5px}
.foot-nav a{color:#b9c5b4;transition:color .18s var(--ease)}
.foot-nav a:hover{color:var(--gold-2)}
.foot-legal{
  font-size:12px;color:#7f917b;
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:18px;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.foot-legal .bar{width:1px;height:12px;background:rgba(255,255,255,.16)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .origin-grid{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .stat-band{grid-template-columns:repeat(4,1fr)}
  .aid-grid{grid-template-columns:repeat(2,1fr)}
  .quality-grid{grid-template-columns:repeat(2,1fr);gap:0 28px}
  .compare{grid-template-columns:repeat(2,1fr)}
  .contact-card{padding:36px 34px}
}

@media (min-width:960px){
  .wrap{padding:0 32px}
  .head-inner{height:80px;gap:26px}
  .brand-text strong{font-size:22px}
  .head-nav{margin-left:26px;gap:2px}
  .head-nav .nav-cta{display:none}
  .hero{padding:52px 0 8px}
  .hero-grid{grid-template-columns:1.06fr .94fr;gap:54px}
  .hero h1{font-size:54px}
  .lede{font-size:17px}
  .hero-foot{margin-top:44px;justify-content:center}
  .section{padding:92px 0}
  .sec-head{margin-bottom:44px}
  .origin-grid{grid-template-columns:repeat(4,1fr);gap:16px}
  .product-grid{grid-template-columns:repeat(3,1fr);gap:20px}
  .split{grid-template-columns:1.02fr .98fr;gap:56px}
  .split-side{background:rgba(255,253,248,.6);border:1px solid var(--line);border-radius:var(--r-lg);padding:10px 26px}
  .aid-grid{grid-template-columns:repeat(4,1fr);gap:16px}
  .quality-grid{grid-template-columns:repeat(4,1fr);gap:0 26px}
  .quality-item{border-bottom:0;flex-direction:column;gap:14px;padding:0}
  .contact-card{grid-template-columns:1fr auto;padding:46px 48px;gap:48px;align-items:center}
  .qr-box{width:210px}
  .foot-inner{grid-template-columns:1fr auto;align-items:center}
  .foot-legal{grid-column:1/-1}
}

@media (max-width:959px){
  .head-nav{
    position:fixed;inset:72px 0 auto 0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(251,247,239,.98);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    padding:14px 20px 22px;
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px -30px rgba(24,46,34,.6);
    transform:translateY(-8px);
    opacity:0;visibility:hidden;
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
    margin-left:0;
  }
  body.nav-open .head-nav{opacity:1;visibility:visible;transform:none}
  .head-nav > a{padding:13px 12px;font-size:16px;border-radius:10px}
  .head-nav .nav-cta{margin:10px 0 0;text-align:center;padding:13px 12px}
  .menu-btn{display:flex}
  .head-cta{display:none}
  .fc-top{top:10px;left:4px}
  .fc-bottom{bottom:14px;right:2px}
}

@media (max-width:520px){
  .float-card{font-size:11.5px;padding:9px 12px}
  .float-card small{display:none}
  .hero-foot{font-size:11.5px}
  .dot-sep{display:none}
  .btn-lg{padding:12px 20px;font-size:15px}
}

/* 打印 */
@media print{
  .site-head,.hero-visual,.contact-qr,.hero-cta,.menu-btn{display:none}
  body{background:#fff}
  .section-dark{background:#fff;color:#000}
  .section-dark *{color:#000 !important}
}

/* 尊重减少动效 */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none}
}