/* =========================================================================
   绿培 GoGreen 官网 · 本地演示站样式
   视觉语言沿用已定稿资产：深墨绿科技种植风
   三层配色 = 定稿基线：产地仓 #41bd8e / 销货仓 #479ae8 / 客户 #c79325
   ========================================================================= */
:root{
  --ink:#062418; --ink2:#0B3B24; --ink3:#0F4630;
  --cream:#F3F6F3; --paper:#FFFFFF; --line:#DCE4DE;   /* 09-21 统一配色：去掉暖米调，全部归墨绿系 */
  --lime:#CDE86B; --lime2:#A8D64F; --orange:#FF4B1F;
  --text:#22262B; --muted:#6B7A72; --muted-d:#A9C4B2;
  --L1:#41bd8e; --L2:#479ae8; --L3:#c79325;
  /* 字体（2026-09-20 老大要求：全站统一黑体 —— 中文标题/正文/英文副标全走同一套黑体栈） */
  --hei:"Heiti SC","STHeiti","黑体","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei","SimHei",sans-serif;
  --serif:var(--hei);
  --sans:var(--hei);
  --latin:var(--hei);
  --shadow:0 18px 44px rgba(6,36,24,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--text);background:var(--paper);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.wrap{width:min(1200px,92vw);margin:0 auto}
.en{font-family:var(--latin);letter-spacing:.06em}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;color:var(--ink);line-height:1.4}
.center{text-align:center}

/* ---------- 顶部导航（v3.8 · 2026-09-22 老大定稿「B 方案」）
   ① 取消页眉第一行文字（原深色文字条整条删除）
   ② 「中文 / EN」搬到 logo 旁边（同处 .nav-lead）
   ③ 整行底色＝深墨绿（原来 logo 徽章的那个墨绿）→ 导航文字反白、按钮走柠檬绿
   ④ logo 不再单独托底：白 logo 直接落在墨绿行上（徽章底＝行底色，视觉上合成一块） */
header.nav{position:sticky;top:0;z-index:60;background:var(--ink);color:#DCE9E0;
  border-bottom:1px solid rgba(205,232,107,.20);box-shadow:0 8px 22px rgba(3,18,12,.22)}
header.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:92px;gap:18px}
.nav-lead{display:flex;align-items:center;gap:clamp(14px,1.7vw,30px);flex:0 0 auto;min-width:0}
.logo-box{display:flex;align-items:center;flex:0 0 auto}
.logo-badge{background:transparent;border-radius:0;padding:0;display:inline-flex;align-items:center;
  transition:transform .26s ease,opacity .26s ease}
.logo-box:hover .logo-badge{transform:translateY(-1px);opacity:.94}
.logo-badge img{height:clamp(44px,6vh,58px);width:auto;display:block}
/* 语言开关：深底版本 */
.lang{display:flex;align-items:center;gap:2px;font-size:13.5px;color:#9FBBA8;letter-spacing:.02em}
.lang .sep{width:1px;height:14px;background:rgba(255,255,255,.22);margin:0 9px;display:inline-block}
.lang span{position:relative;cursor:pointer;padding:7px 10px;border-radius:999px;
  transition:color .2s ease,background .2s ease}
.lang span:not(.on):hover{color:#fff;background:rgba(255,255,255,.09)}
.lang span.on{color:#fff;font-weight:600}
.lang span.on:after{content:"";position:absolute;left:10px;right:10px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--lime),var(--lime2))}
.nav-links{display:flex;align-items:center;gap:26px;font-size:14.5px;color:#D8E6DD}
.nav-links a{position:relative;padding:6px 2px;white-space:nowrap}
.nav-links a:hover{color:#fff}
.nav-links a.on{color:#fff;font-weight:600}
.nav-links a.on:after{content:"";position:absolute;left:2px;right:2px;bottom:-2px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--L1),var(--L3))}
.nav-cta{background:var(--lime);color:#10331F;padding:11px 22px;border-radius:999px;font-size:14px;font-weight:600;white-space:nowrap}
.nav-cta:hover{background:var(--lime2)}
.burger{display:none}

/* ---------- 首屏（3D 沙盘） ---------- */
.hero{position:relative;background:#04090c;overflow:hidden}
.hero-stage{position:absolute;inset:0;z-index:0}
.hero-shade{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(ellipse at 50% 46%,rgba(0,0,0,0) 40%,rgba(0,0,0,.42) 76%,rgba(0,0,0,.72) 100%),
             linear-gradient(90deg,rgba(4,11,14,.88) 0%,rgba(4,11,14,.52) 34%,rgba(4,11,14,.06) 62%,rgba(4,11,14,.3) 100%),
             linear-gradient(180deg,rgba(4,9,12,.72) 0%,rgba(4,9,12,.18) 34%,rgba(4,9,12,.86) 100%)}
.hero-inner{position:relative;z-index:2;min-height:calc(100vh - 110px);display:flex;flex-direction:column;
  justify-content:space-between;padding:54px 0 40px;pointer-events:none}
.hero-inner .wrap{pointer-events:auto}
.kick{font-family:var(--latin);font-size:12.5px;letter-spacing:.22em;color:var(--lime)}
.hero-title{color:#fff;font-size:50px;margin-top:20px}
.hero-title em{font-style:normal;color:var(--lime)}
.hero-sub{color:#D3E2D7;font-size:16px;line-height:2;margin-top:22px;width:min(640px,100%)}
.hero-sub .en{display:block;color:#9FB6A4;font-size:13.5px;margin-top:12px}
.hero-btns{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.hero-hint{margin-top:24px;color:#7FB3A6;font-size:12.5px;letter-spacing:.14em;opacity:0;line-height:1.8}
.hero-entry{margin-top:30px}
.hero-entry .grid2{gap:18px;max-width:780px}
.hero-entry .card{background:rgba(255,255,255,.95);border:0;padding:22px 24px;box-shadow:0 12px 30px rgba(0,0,0,.25)}

/* ---------- 通用区块 ---------- */
.sec{padding:92px 0}
.sec.cream{background:var(--cream)}
.sec.ink{background:var(--ink);color:#fff}
.sec.tight{padding:64px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:46px}
.sec-head h2{font-size:36px}
.sec-head h2 .eng{display:block;font-family:var(--latin);font-size:12.5px;color:var(--muted);letter-spacing:.2em;font-weight:400;margin-top:12px}
.sec-head p{width:min(460px,100%);font-size:14.5px;line-height:1.9;color:#5D6A62}
.sec.ink .sec-head h2{color:#fff}
.sec.ink .sec-head h2 .eng{color:var(--muted-d)}
.sec.ink .sec-head p{color:#B9CFC2}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 28px;box-shadow:var(--shadow)}
.card h3{font-size:19px;margin-bottom:12px}
.card p{font-size:14px;line-height:1.9;color:#55635B}
.icon{width:44px;height:44px;border-radius:12px;background:var(--ink);color:var(--lime);display:flex;
  align-items:center;justify-content:center;font-family:var(--latin);font-size:16px;margin-bottom:18px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;border:0}
.btn-p{background:var(--lime);color:#10331F}
.btn-p:hover{background:var(--lime2)}
.btn-o{border:1px solid rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-o:hover{background:rgba(255,255,255,.1)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink3)}
.pill{display:inline-block;background:var(--cream);border:1px solid var(--line);border-radius:10px;padding:9px 16px;font-size:13.5px;color:#3D4A43}

/* ---------- 数据条 ---------- */
.stats{background:var(--ink2)}
.stats .wrap{display:flex;flex-wrap:wrap}
.stat{flex:1 1 180px;padding:30px 20px;border-right:1px solid #17402C;text-align:center}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--latin);font-size:29px;color:var(--lime)}
.stat span{display:block;font-size:12.5px;color:#A9C4B2;margin-top:8px}

/* ---------- 三层链路卡 ---------- */
.chain{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.layer{position:relative;border-radius:16px;padding:28px 26px;color:#fff;overflow:hidden;min-height:250px;
  display:flex;flex-direction:column;justify-content:space-between}
.layer .no{font-family:var(--latin);font-size:12.5px;letter-spacing:.2em;opacity:.85}
.layer h3{color:#fff;font-size:22px;margin:10px 0 12px}
.layer p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.88)}
.layer .kv{margin-top:18px;display:flex;gap:18px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.92)}
.layer .kv b{font-family:var(--latin);font-size:17px;display:block}
.layer.l1{background:linear-gradient(150deg,#12805c,#0a4e39)}
.layer.l2{background:linear-gradient(150deg,#1f6fbf,#123f73)}
.layer.l3{background:linear-gradient(150deg,#a8761a,#6d4a0c)}
.layer .dot{width:9px;height:9px;border-radius:50%;display:inline-block;margin-right:8px}
.layer.l1 .dot{background:var(--L1);box-shadow:0 0 12px var(--L1)}
.layer.l2 .dot{background:#7fc6ff;box-shadow:0 0 12px var(--L2)}
.layer.l3 .dot{background:#ffd166;box-shadow:0 0 12px var(--L3)}

/* ---------- 双轨开关 ---------- */
.dualswitch{display:inline-flex;align-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);
  border-radius:999px;padding:5px;gap:4px;margin-bottom:30px}
.dualswitch button{background:transparent;border:0;color:#C6D8CB;font-family:var(--sans);font-size:14.5px;
  padding:11px 24px;border-radius:999px;cursor:pointer}
.dualswitch button.on{background:var(--lime);color:#10331F;font-weight:600}
.dual-group{display:none}
.dual-group.on{display:block}
.caps{display:flex;flex-direction:column;gap:14px}
.cap-row{display:flex;gap:16px;padding:16px 0;border-top:1px solid rgba(255,255,255,.14);font-size:14.5px;color:#DCE9E0}
.cap-row:first-child{border-top:0}
.cap-row em{font-style:normal;font-family:var(--latin);color:var(--lime);font-size:12.5px;min-width:26px;padding-top:3px}
.cap-row b{display:block;color:#fff;font-weight:600;margin-bottom:6px}
.cap-row span{color:#B9CFC2;line-height:1.8;font-size:13.5px}

/* ---------- 品牌并列（悠芯鲜 ⇄ Tatayoyo） ---------- */
.brandpair{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:stretch}
.brandcol{border-radius:20px;overflow:hidden;border:1px solid var(--line);background:#fff;display:flex;flex-direction:column}
.brandcol .top{padding:26px 30px 22px;color:#fff}
.brandcol.uxx .top{background:linear-gradient(150deg,#0d5c40,#072a1c)}
.brandcol.tty .top{background:linear-gradient(150deg,#a81f10,#5e1008)}
.brandcol .top .cap{font-family:var(--latin);font-size:11.5px;letter-spacing:.2em;color:rgba(255,255,255,.72)}
.brandcol .top h3{color:#fff;font-size:27px;margin:10px 0 8px}
.brandcol .top .en2{font-family:var(--latin);font-size:12.5px;letter-spacing:.18em;color:rgba(255,255,255,.82)}
.brandcol .top p{margin-top:14px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.9)}
.brandcol .body{padding:26px 30px 30px;display:flex;flex-direction:column;gap:18px;flex:1}
.brandcol .shot{border-radius:14px;overflow:hidden;background:var(--cream);position:relative}
.brandcol .shot img{width:100%;height:230px;object-fit:contain}
.brandcol .shot .tip{position:absolute;left:12px;top:12px;background:rgba(6,36,24,.82);color:#EAF3EC;
  font-size:11.5px;padding:5px 11px;border-radius:999px}
.kvlist{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:#4E5C55}
.kvlist div{display:flex;gap:10px}
.kvlist b{color:var(--ink);font-weight:600;min-width:74px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{background:var(--cream);border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:12.5px;color:#3D4A43}
.brand-eq{display:flex;align-items:center;justify-content:center;font-family:var(--latin);color:var(--muted);
  font-size:13px;letter-spacing:.2em;margin:26px 0 0}

/* ---------- 产品图鉴（翻转卡） ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.filters button{background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 20px;font-size:13.5px;
  cursor:pointer;color:#3D4A43;font-family:var(--sans)}
.filters button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pcard{perspective:1200px;height:320px}
.pcard .inner{position:relative;width:100%;height:100%;transition:transform .62s cubic-bezier(.4,.1,.2,1);transform-style:preserve-3d}
.pcard:hover .inner,.pcard.flip .inner{transform:rotateY(180deg)}
.pcard .face{position:absolute;inset:0;backface-visibility:hidden;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#fff}
.pcard .front img{width:100%;height:200px;object-fit:cover}
.pcard .front .info{padding:16px 18px}
.pcard .front h4{font-size:16.5px}
.pcard .front .en2{font-family:var(--latin);font-size:11px;color:var(--muted);margin-top:5px;letter-spacing:.1em}
.pcard .front p{font-size:12.5px;color:#5D6A62;line-height:1.75;margin-top:9px}
.pcard .back{transform:rotateY(180deg);background:var(--ink);color:#fff;border-color:var(--ink);padding:22px}
.pcard .back h4{color:#fff;font-size:17px;margin-bottom:14px}
.pcard .back .kv{display:flex;flex-direction:column;gap:9px;font-size:13px;color:#C6D8CB}
.pcard .back .kv b{color:var(--lime);font-weight:600;display:inline-block;min-width:58px}
.pcard .flipbtn{position:absolute;left:18px;bottom:16px;font-size:12px;color:var(--muted);
  background:var(--cream);border:1px solid var(--line);border-radius:999px;padding:6px 12px;z-index:3}

/* ---------- 五端检测 ---------- */
.qc{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.qc .qc-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:22px 20px}
.qc .qc-item em{font-style:normal;font-family:var(--latin);color:var(--lime);font-size:12.5px}
.qc .qc-item b{display:block;color:#fff;font-size:15.5px;margin:10px 0 8px}
.qc .qc-item span{font-size:12.5px;color:#B9CFC2;line-height:1.8}

/* ---------- 拼装器 ---------- */
.asm{display:grid;grid-template-columns:1.25fr .95fr;gap:26px;align-items:start}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px;margin-bottom:16px}
.step .st{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.step .st em{font-style:normal;font-family:var(--latin);font-size:12px;color:#fff;background:var(--ink);
  width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center}
.step .st b{font-size:16px}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{background:var(--cream);border:1px solid var(--line);border-radius:999px;padding:9px 17px;font-size:13.5px;
  cursor:pointer;color:#3D4A43;font-family:var(--sans)}
.chip:hover{border-color:var(--ink3)}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.svccard{background:linear-gradient(155deg,#0b3b24,#062418);color:#fff;border-radius:18px;padding:28px 26px;position:sticky;top:100px}
.svccard h3{color:#fff;font-size:21px;margin-bottom:6px}
.svccard .sub{font-family:var(--latin);font-size:11.5px;letter-spacing:.18em;color:var(--lime)}
.svccard .rows{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.svccard .rows div{display:flex;justify-content:space-between;gap:14px;font-size:13.5px;border-bottom:1px dashed rgba(255,255,255,.18);padding-bottom:10px}
.svccard .rows span:first-child{color:var(--muted-d)}
.svccard .rows span:last-child{color:#fff;text-align:right}
.svccard .foot{margin-top:20px;display:flex;gap:10px;flex-wrap:wrap}
.svccard .foot button{background:var(--lime);color:#10331F;border:0;border-radius:999px;padding:11px 20px;
  font-size:13.5px;font-weight:600;cursor:pointer;font-family:var(--sans)}
.svccard .foot button.ghost{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff}

/* ---------- 滚动沙盘（供应链页） ---------- */
.pin{position:relative;height:340vh;background:#04090c}
.pin-stage{position:sticky;top:76px;height:calc(100vh - 76px);overflow:hidden}
.pin-hud{position:absolute;inset:0;z-index:2;pointer-events:none}
.pin-hud .stages{position:absolute;right:5vw;top:40px;text-align:right;font-size:14.5px;line-height:2.3;color:#4E6A62}
.pin-hud .stages .on{color:#EAFFF5;font-weight:600}
.pin-hud .stages .on i{font-style:normal;margin-right:8px;color:var(--L1)}
.pin-hud .bar{position:absolute;left:5vw;right:5vw;bottom:26px;height:2px;background:rgba(255,255,255,.08)}
.pin-hud .bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--L1),var(--L2),var(--L3));
  box-shadow:0 0 10px #4fe0b0}
.pin-hud .legend{position:absolute;left:5vw;bottom:52px;font-size:13.5px;line-height:2.05;color:#9FE4D0}
.pin-hud .legend .dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:9px;vertical-align:middle;color:inherit;background:currentColor}
.pin-hud .l1{color:var(--L1)}.pin-hud .l2{color:#39c9ff}.pin-hud .l3{color:#ffb03a}
.pin-hud .hint{position:absolute;left:0;right:0;bottom:34px;text-align:center;font-size:12.5px;color:#5F8A80;letter-spacing:.14em}
.pin-story{position:absolute;left:5vw;top:50%;transform:translateY(-50%);width:min(430px,44vw);z-index:3;display:grid}
.pinpanel{grid-area:1/1;opacity:0;transition:opacity .4s ease;pointer-events:none}
.pinpanel.on{opacity:1;pointer-events:auto}
.pinpanel .no{font-family:var(--latin);font-size:12.5px;letter-spacing:.2em;color:var(--lime)}
.pinpanel h3{color:#fff;font-size:30px;margin:10px 0 14px}
.pinpanel p{color:#C6D8CB;font-size:14px;line-height:1.95}
.pinpanel .kv{margin-top:18px;display:flex;gap:22px;flex-wrap:wrap}
.pinpanel .kv div{color:#9FE4D0;font-size:12.5px}
.pinpanel .kv b{display:block;font-family:var(--latin);font-size:20px;color:#fff}
.pinpanel .photo{margin-top:18px;border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.18);width:min(360px,40vw)}
.pinpanel .photo img{height:170px;width:100%;object-fit:cover}
.pinpanel .photo .cp{background:rgba(0,0,0,.55);color:#CFE3D6;font-size:11.5px;padding:7px 12px}

/* ---------- 单层详情 ---------- */
.layrow{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center;margin-bottom:52px}
.layrow:last-child{margin-bottom:0}
.layrow .pic{border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.layrow .pic img{height:360px;width:100%;object-fit:cover}
.layrow .no{font-family:var(--latin);font-size:12.5px;letter-spacing:.2em}
.layrow h3{font-size:27px;margin:10px 0 14px}
.layrow p{font-size:14.5px;line-height:1.95;color:#55635B}
.layrow ul{margin-top:16px}
.layrow li{list-style:none;font-size:14px;line-height:1.85;color:#55635B;padding:10px 0 10px 26px;position:relative;border-bottom:1px dashed var(--line)}
.layrow li:before{content:"";position:absolute;left:0;top:17px;width:8px;height:8px;border-radius:50%;background:var(--lime);border:2px solid var(--ink)}
.layrow.l1 .no{color:#12805c}.layrow.l2 .no{color:#1f6fbf}.layrow.l3 .no{color:#a8761a}

/* ---------- 认证 / 表格 ---------- */
.certs{display:flex;flex-wrap:wrap;gap:10px}
.certs span{background:#fff;border:1px solid var(--line);border-radius:9px;padding:9px 15px;font-size:13px;color:#3D4A43}
.facts{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.facts th{background:var(--ink);color:#fff;font-size:13.5px;text-align:left;padding:13px 16px;font-weight:600}
.facts td{border-top:1px solid var(--line);padding:13px 16px;font-size:13.5px;color:#3D4A43;vertical-align:top}
.facts td:first-child{color:var(--ink);font-weight:600;width:190px}
.note{font-size:12.5px;color:var(--muted);line-height:1.9;margin-top:14px}

/* ---------- 合作表单 ---------- */
.coop{display:grid;grid-template-columns:.95fr 1.05fr;gap:36px;align-items:start}
.form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 28px 24px;box-shadow:var(--shadow)}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;
  font-size:14px;font-family:var(--sans);color:var(--text);background:#fff;outline:none}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--ink3);box-shadow:0 0 0 3px rgba(15,70,48,.10)}
.field textarea{height:88px;resize:vertical}
.receipt{display:none;background:linear-gradient(155deg,#0b3b24,#062418);color:#fff;border-radius:16px;padding:28px}
.receipt.on{display:block}
.receipt h3{color:#fff;font-size:20px;margin-bottom:8px}
.receipt .rows{margin-top:16px;display:flex;flex-direction:column;gap:10px;font-size:13.5px}
.receipt .rows div{display:flex;justify-content:space-between;border-bottom:1px dashed rgba(255,255,255,.18);padding-bottom:9px}
.receipt .rows span:first-child{color:var(--muted-d)}

/* ---------- 客文字墙 / 页脚 ---------- */
.clients{background:#fff;padding:48px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.clients .lead{text-align:center;color:var(--muted);font-size:13px;letter-spacing:.08em;margin-bottom:22px}
.clients .row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.clients .c{background:var(--cream);border:1px solid var(--line);border-radius:10px;padding:11px 20px;font-size:14.5px;color:#3D4A43}
footer{background:var(--ink);color:#9FBBA8;padding:56px 0 28px;font-size:13.5px}
footer .cols{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:34px}
footer h4{color:#fff;font-size:14.5px;margin-bottom:14px}
footer p{line-height:2.05}
footer .flogo{height:46px;margin-bottom:16px}
footer .bottom{border-top:1px solid #1C4030;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#7C9A88;line-height:1.9}
.totop{position:fixed;right:24px;bottom:28px;z-index:50;background:var(--ink);color:var(--lime);border:0;width:46px;height:46px;
  border-radius:50%;font-size:16px;cursor:pointer;box-shadow:var(--shadow);opacity:0;transition:opacity .3s}
.totop.on{opacity:.94}

/* ---------- 页面内小导航 ---------- */
.pagenav{background:var(--cream);border-bottom:1px solid var(--line);padding:14px 0;font-size:13.5px;color:#4E5C55}
.pagenav .wrap{display:flex;gap:22px;flex-wrap:wrap}
.pagenav a:hover{color:var(--ink3)}

/* ---------- 品牌栏 tab（悠芯鲜 / Tatayoyo 并列） ---------- */
.btabs{display:flex;gap:12px;margin-bottom:30px;flex-wrap:wrap}
.btabs button{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 26px;cursor:pointer;
  text-align:left;font-family:var(--sans);min-width:220px}
.btabs button h4{font-size:17px;margin-bottom:4px}
.btabs button span{font-family:var(--latin);font-size:11.5px;letter-spacing:.14em;color:var(--muted)}
.btabs button.on{border-color:var(--ink);box-shadow:0 10px 26px rgba(6,36,24,.10)}
.btabs button.on h4{color:var(--ink3)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .grid4,.gallery,.qc{grid-template-columns:repeat(2,1fr)}
  .grid3,.chain{grid-template-columns:1fr 1fr}
  .brandpair,.asm,.coop,.layrow,.grid2{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:18px}
  .sec-head p{width:100%}
  .svccard{position:static}
  .hero-title{font-size:40px}
}
@media (max-width:820px){
  .nav-links{display:none}
  .burger{display:inline-flex;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.24);
    border-radius:10px;color:#EAF3EC;padding:9px 14px;font-size:14px;font-family:var(--sans);cursor:pointer}
  /* 手机端：logo 与语言开关同排，导航高度收到 76px（.nav.open 的下拉从 76px 开始，底色同为墨绿） */
  header.nav .wrap{height:76px}
  .nav-lead{gap:10px}
  .logo-badge img{height:38px}
  .lang{font-size:12.5px}
  .lang .sep{margin:0 5px}
  .lang span{padding:6px 7px}
  header.nav.open .nav-links{display:flex;position:absolute;left:0;right:0;top:76px;background:var(--ink);
    border-top:1px solid rgba(255,255,255,.10);
    flex-direction:column;align-items:flex-start;gap:4px;padding:16px 5vw 22px;border-bottom:1px solid rgba(255,255,255,.10)}
  /* 手机端：文案在上、沙盘单独占下方一块，避免文字压在沙盘上看不清 */
  .hero{display:flex;flex-direction:column}
  .hero-stage{position:relative;order:3;height:46vh;min-height:260px}
  .hero-inner{order:1;min-height:auto;padding:30px 0 16px}
  .hero-entry{order:2}
  .hero-shade{background:linear-gradient(180deg,rgba(4,9,12,.6),rgba(4,9,12,.86))}
  .hero-title{font-size:29px;line-height:1.5}
  .hero-sub{font-size:14px;line-height:1.9}
  .hero-sub .en{font-size:12px}
  .hero-hint{font-size:11.5px;letter-spacing:.06em}
  .hero-entry .card{padding:18px 20px}
  .sec{padding:64px 0}
  .sec-head h2{font-size:28px}
  .grid3,.chain,.grid4,.gallery,.qc{grid-template-columns:1fr}
  .pcard{height:auto;perspective:none}
  .pcard .inner{transform:none!important;position:static;height:auto}
  .pcard .face{position:static;transform:none!important;border-radius:16px;margin-bottom:14px}
  .pcard .flipbtn{display:none}
  .pin{height:260vh}
  .pin-story{width:min(90vw,340px)}
  .pinpanel .photo{display:none}
  .pin-hud .stages{font-size:13px;top:24px}
  .layrow .pic img{height:240px}
}

/* 备案号（工信部链接） */
.icp{color:inherit;text-decoration:none;border-bottom:1px solid transparent}
.icp:hover{text-decoration:underline}