/* Greenline Supply Co. — 全站公共样式  (v2) */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:#1a2b22;line-height:1.7;background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
em{color:#c9a96e;font-style:normal}

/* 顶部信息条 */
.topbar{background:#0f2a1f;color:#d4e8d8;font-size:13px;padding:8px 0}
.topbar .in{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.topbar .tb-item{display:flex;align-items:center;gap:8px}
.topbar .tb-item i{color:#c9a96e;font-size:12px}
.topbar a{color:#c9a96e;font-weight:600}
.topbar a:hover{color:#dcb96e}

/* 导航 */
nav{background:#fff;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(15,42,31,0.08)}
nav .in{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;height:70px}
nav .logo{display:flex;align-items:center;gap:10px}
nav .logo img{width:44px;height:44px;border-radius:50%;border:2px solid #c9a96e;object-fit:cover}
nav .logo b{font-size:19px;color:#1d5039;line-height:1.1}
nav .logo b span{display:block;font-size:11px;color:#c9a96e;font-weight:600;letter-spacing:2px}
nav ul{display:flex;list-style:none;gap:24px;margin-left:auto}
nav ul a{font-size:15px;font-weight:600;color:#2a4636;padding:6px 0;border-bottom:2px solid transparent;transition:.2s}
nav ul a:hover{color:#1d5039;border-color:#c9a96e}
nav .nav-cta{background:#1d5039;color:#fff!important;padding:10px 20px;border-radius:8px;margin-left:22px;border:none!important;font-size:14px!important;display:inline-flex;align-items:center;gap:8px}
nav .nav-cta:hover{background:#2e7d4f}

/* 按钮 */
.btn{padding:15px 32px;border-radius:8px;font-size:16px;font-weight:700;display:inline-flex;align-items:center;gap:10px;transition:.2s}
.btn-gold{background:#c9a96e;color:#0f2a1f}
.btn-gold:hover{background:#dcb96e;transform:translateY(-2px)}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6)}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-green{background:#1d5039;color:#fff}
.btn-green:hover{background:#2e7d4f;transform:translateY(-2px)}
.btn-outline-dark{background:transparent;color:#1d5039;border:2px solid #1d5039}
.btn-outline-dark:hover{background:#1d5039;color:#fff}

/* Hero 首页大图 */
.hero{position:relative;min-height:540px;display:flex;align-items:center;
  background:linear-gradient(115deg,rgba(15,42,31,.95) 0%,rgba(29,80,57,.78) 55%,rgba(46,125,79,.38) 100%),url("../img/hero-bg.jpg") center/cover}
.hero .in{max-width:1200px;margin:0 auto;padding:70px 24px;width:100%}
.hero .tag{display:inline-flex;align-items:center;gap:8px;background:rgba(201,169,110,.18);color:#c9a96e;border:1px solid rgba(201,169,110,.5);padding:6px 16px;border-radius:20px;font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:20px}
.hero h1{font-size:46px;color:#fff;line-height:1.2;margin-bottom:18px;max-width:800px}
.hero p.sub{font-size:19px;color:#d4e8d8;max-width:700px;margin-bottom:14px}
.hero .products{font-size:15px;color:#fff;letter-spacing:2.5px;font-weight:600;margin-bottom:34px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}

/* 内页紧凑 Hero */
.pagehero{background:linear-gradient(120deg,#0f2a1f,#2e7d4f);color:#fff;padding:54px 0 50px;position:relative;overflow:hidden}
.pagehero::after{content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;border-radius:50%;background:rgba(201,169,110,.09);z-index:0}
.pagehero.hero-img{background-color:#0f2a1f;background-size:cover;background-position:center}
.pagehero.hero-img::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(100deg,rgba(15,42,31,.96) 0%,rgba(15,42,31,.88) 44%,rgba(29,80,57,.58) 100%)}
.pagehero .in{position:relative;z-index:2}
.pagehero.hero-img h1{color:#fff}
.pagehero.hero-img p{color:#eef5ef;font-weight:500}
.pagehero .tag{display:inline-flex;align-items:center;gap:8px;background:rgba(201,169,110,.18);color:#c9a96e;border:1px solid rgba(201,169,110,.5);padding:6px 16px;border-radius:20px;font-size:12px;font-weight:700;letter-spacing:1px;margin-bottom:16px}
.pagehero h1{font-size:34px;line-height:1.2;margin-bottom:12px}
.pagehero p{font-size:17px;color:#d4e8d8;max-width:820px}
.pagehero .cta{margin-top:24px;display:flex;gap:14px;flex-wrap:wrap}

/* 面包屑 */
.breadcrumb{background:#f5f9f6;padding:12px 0;font-size:13px}
.breadcrumb .wrap{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.breadcrumb a{color:#5a6d60}
.breadcrumb a:hover{color:#1d5039}
.breadcrumb i{font-size:10px;color:#c9a96e}
.breadcrumb span{color:#1d5039;font-weight:700}

/* 信任条 */
.trust{background:#0f2a1f;padding:28px 0}
.trust .in{max-width:1200px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.trust .item{text-align:center;color:#d4e8d8}
.trust .item .n{font-size:28px;font-weight:800;color:#c9a96e;line-height:1.15}
.trust .item .n small{font-size:16px;font-weight:700}
.trust .item .l{font-size:13px;margin-top:6px;letter-spacing:.5px}

/* 区块通用 */
section.block{padding:70px 0}
section.block.alt{background:#f5f9f6}
.sec-head{text-align:center;margin-bottom:46px}
.sec-head .kicker{color:#c9a96e;font-size:13px;font-weight:700;letter-spacing:3px;text-transform:uppercase}
.sec-head h2{font-size:34px;color:#1d5039;margin:8px 0 12px}
.sec-head p{color:#5a6d60;font-size:16px;max-width:740px;margin:0 auto}

/* 产品卡片 / 产品索引卡 */
.products-grid,.pindex-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard,.pindex{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 18px rgba(15,42,31,.08);transition:.25s;display:flex;flex-direction:column;text-decoration:none}
.pcard:hover,.pindex:hover{transform:translateY(-6px);box-shadow:0 14px 32px rgba(15,42,31,.16)}
.pcard .ph,.pindex .ph{height:222px;overflow:hidden;position:relative;background:#eef2ef}
.pcard .ph img,.pindex .ph img{width:100%;height:100%;object-fit:cover;transition:.4s}
.pcard:hover .ph img,.pindex:hover .ph img{transform:scale(1.07)}
.pcard .ph .badge,.pindex .ph .badge{position:absolute;top:12px;left:12px;background:#1d5039;color:#fff;font-size:11px;font-weight:700;padding:5px 11px;border-radius:20px;letter-spacing:.5px}
.pcard .pb,.pindex .pb{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.pcard .pb h3,.pindex .pb h3{font-size:19px;color:#1d5039;margin-bottom:3px}
.pcard .pb .en{font-size:12px;color:#c9a96e;font-weight:700;letter-spacing:1px;margin-bottom:12px}
 .pindex .pb h3{margin-bottom:12px}
.pcard .pb ul{list-style:none;margin-bottom:16px;flex:1}
.pcard .pb ul li{font-size:13px;color:#5a6d60;padding:4px 0 4px 20px;position:relative}
.pcard .pb ul li i{position:absolute;left:0;color:#2e7d4f;font-weight:700;font-size:11px;top:7px}
.pcard .pb ul li b{color:#1d5039}
.pcard .pb a,.pindex .pb .go{display:flex;align-items:center;justify-content:center;gap:8px;background:#1d5039;color:#fff;font-size:14px;font-weight:700;padding:10px;border-radius:8px;transition:.2s}
.pcard .pb a:hover,.pindex:hover .pb .go{background:#2e7d4f}

/* 合作模式 */
.fac-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center}
.fac-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.fac-stat{background:#fff;border-radius:14px;padding:26px 22px;box-shadow:0 4px 18px rgba(15,42,31,.08);border-left:4px solid #c9a96e}
.fac-stat .n{font-size:30px;font-weight:800;color:#1d5039;line-height:1.15}
.fac-stat .u{font-size:15px;color:#c9a96e;font-weight:700}
.fac-stat .l{font-size:13px;color:#5a6d60;margin-top:6px}
.fac-txt h3{font-size:22px;color:#1d5039;margin-bottom:14px}
.fac-txt>p{font-size:15px;color:#42584b;margin-bottom:18px}
.fac-txt ul{list-style:none}
.fac-txt ul li{font-size:15px;color:#42584b;padding:11px 0 11px 46px;position:relative;border-bottom:1px dashed #e2ebe4}
.fac-txt ul li i{position:absolute;left:0;top:12px;color:#c9a96e;font-size:18px;width:32px;text-align:center}
.fac-txt ul li:last-child{border-bottom:none}
.fac-note{background:linear-gradient(120deg,#1d5039,#2e7d4f);color:#d4e8d8;border-radius:14px;padding:18px 22px;margin-top:18px;font-size:14px;display:flex;gap:14px;align-items:flex-start}
.fac-note i{color:#c9a96e;font-size:20px;margin-top:2px}

/* 认证 */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cert{background:#fff;border-radius:14px;padding:32px 24px;box-shadow:0 4px 18px rgba(15,42,31,.08);text-align:center;position:relative;overflow:hidden}
.cert::after{content:"";position:absolute;left:0;top:0;height:4px;width:100%;background:linear-gradient(90deg,#c9a96e,#2e7d4f)}
.cert .cert-mark{font-size:42px;margin-bottom:16px;color:#c9a96e;line-height:1}
.cert h3{font-size:18px;color:#1d5039;margin-bottom:10px}
.cert p{font-size:14px;color:#5a6d60}
.cert b{color:#1d5039}

/* 优势 */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feat{text-align:center;padding:34px 22px;background:#fff;border-radius:14px;box-shadow:0 4px 18px rgba(15,42,31,.07);border-top:4px solid #c9a96e}
.feat .ic{font-size:40px;margin-bottom:16px;color:#c9a96e;line-height:1}
.feat h3{font-size:18px;color:#1d5039;margin-bottom:10px}
.feat p{font-size:14px;color:#5a6d60}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{background:#fff;border-radius:14px;padding:30px 24px;box-shadow:0 4px 18px rgba(15,42,31,.07);position:relative}
.step .n{position:absolute;top:-18px;left:24px;background:#c9a96e;color:#0f2a1f;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;box-shadow:0 4px 12px rgba(201,169,110,.4)}
.step h3{font-size:17px;color:#1d5039;margin:14px 0 8px}
.step p{font-size:14px;color:#5a6d60}

/* 通用两栏 / 答案块 */
.cols2{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
.prose h2{font-size:28px;color:#1d5039;margin-bottom:14px}
.prose h3{font-size:21px;color:#1d5039;margin:26px 0 10px}
.prose p{font-size:16px;color:#42584b;margin-bottom:14px}
.prose ul{list-style:none;margin-bottom:16px}
.prose ul li{font-size:15.5px;color:#42584b;padding:8px 0 8px 30px;position:relative}
.prose ul li i{position:absolute;left:0;top:10px;color:#c9a96e;font-size:14px}
.prose ul li b{color:#1d5039}
.answer{background:#fff;border-radius:14px;padding:28px 30px;box-shadow:0 4px 18px rgba(15,42,31,.08);border-left:5px solid #c9a96e;margin-bottom:20px}
.answer .q{font-size:12px;font-weight:800;color:#c9a96e;letter-spacing:2px;margin-bottom:8px}
.answer h3{font-size:20px;color:#1d5039;margin-bottom:10px}
.answer p{font-size:15.5px;color:#42584b}
.answer .kv{margin-top:14px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.answer .kv div{background:#f5f9f6;border-radius:8px;padding:10px 12px}
.answer .kv b{display:block;font-size:17px;color:#1d5039}
.answer .kv span{font-size:12px;color:#5a6d60}
.img-block{background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 18px rgba(15,42,31,.08);margin-bottom:20px}
.img-block img{width:100%;height:300px;object-fit:cover}
.img-block figcaption{padding:12px 20px;font-size:13px;color:#5a6d60;background:#f5f9f6}

/* 规格表 */
.spech{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.spech h3{font-size:22px;color:#1d5039}
.spech span{font-size:12px;color:#c9a96e;font-weight:700;letter-spacing:1px}
.spec{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 4px 18px rgba(15,42,31,.08)}
.spec th{background:#1d5039;color:#fff;text-align:left;padding:13px 20px;font-size:14px;font-weight:600;width:30%}
.spec td{padding:13px 20px;font-size:15px;color:#42584b;border-top:1px solid #eef2ef}
.spec td b{color:#1d5039}
.spec tr:nth-child(even) td{background:#fafcfa}

/* 场景标签 */
.tags{display:flex;flex-wrap:wrap;gap:12px}
.tagchip{background:#fff;border:1px solid #dfe8e1;border-radius:10px;padding:12px 18px;font-size:14px;color:#42584b;box-shadow:0 2px 8px rgba(15,42,31,.05)}
.tagchip i{color:#c9a96e;margin-right:8px}
.tagchip b{color:#1d5039;display:block;font-size:15px}

/* 认证徽章行 */
.certline{display:flex;flex-wrap:wrap;gap:12px}
.certline span{background:rgba(201,169,110,.12);border:1px solid rgba(201,169,110,.4);color:#7a5f24;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:700}

/* 产能带 */
.capband{background:#0f2a1f;color:#fff;padding:54px 0}
.capband .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
.capband .cv{font-family:var(--serif);font-size:34px;font-weight:900;color:var(--gold);line-height:1.15}
.capband .cl{font-size:12.5px;letter-spacing:1.2px;text-transform:uppercase;color:#a9c4b2;margin-top:9px;font-weight:800}
.capband .cd{font-size:14px;color:#cfe0d4;margin-top:8px;line-height:1.55}
.capband .note{margin-top:34px;padding-top:22px;border-top:1px solid rgba(201,169,110,.22);font-size:14.5px;color:#dcebe1;line-height:1.7;text-align:center}
.capband .note b{color:var(--gold)}
/* GEO 可引用采购速览 */
.quote{background:#fff;border-radius:14px;padding:26px 30px;box-shadow:0 4px 18px rgba(15,42,31,.08);border-left:5px solid #1d5039;font-size:16.5px;line-height:1.8;color:#2a4636;position:relative}
.quote::before{content:"\201C";position:absolute;top:6px;right:22px;font-family:Georgia,serif;font-size:64px;color:#c9a96e;line-height:1;opacity:.28}
.facts{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:14px 34px;margin-top:22px}
.facts li{display:flex;gap:12px;font-size:14.5px;color:#42584b;line-height:1.6;align-items:flex-start}
.facts li i{color:#c9a96e;font-size:16px;margin-top:3px;flex-shrink:0}
.facts li b{color:#1d5039;display:block;margin-bottom:1px}

/* 产品内链 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel{background:#fff;border:1px solid #dfe8e1;border-radius:14px;padding:24px 22px;box-shadow:0 2px 10px rgba(15,42,31,.05);display:block;transition:.2s;border-top:3px solid transparent}
.rel:hover{border-top-color:#c9a96e;transform:translateY(-3px);box-shadow:0 8px 22px rgba(15,42,31,.11)}
.rel b{display:block;font-size:16px;color:#1d5039;margin-bottom:8px;letter-spacing:.3px}
.rel span{font-size:13.5px;color:#5a6d60;line-height:1.55}

@media(max-width:900px){.capband .grid{grid-template-columns:repeat(2,1fr);gap:30px 20px}}
@media(max-width:560px){.capband .cv{font-size:26px}}

/* 物流 / 交期 / 包装 / 运输 */
.logi{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.logi .lc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 26px}
.logi .lc .ic{width:48px;height:48px;border-radius:12px;background:rgba(29,80,57,.09);color:var(--green);display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:18px}
.logi .lc h3{font-size:19px;color:#1d5039;margin-bottom:14px}
.logi .lc ul{list-style:none;margin:0;padding:0}
.logi .lc li{position:relative;padding:10px 0 10px 24px;font-size:14.5px;color:var(--muted);line-height:1.55;border-top:1px solid #eef2ef}
.logi .lc li:first-child{border-top:0}
.logi .lc li i{position:absolute;left:0;top:11px;color:var(--gold);font-size:13px}
.logi .lc li b{color:#1d5039}
/* GEO 可引用采购速览 */
.quote{background:#fff;border-radius:14px;padding:26px 30px;box-shadow:0 4px 18px rgba(15,42,31,.08);border-left:5px solid #1d5039;font-size:16.5px;line-height:1.8;color:#2a4636;position:relative}
.quote::before{content:"\201C";position:absolute;top:6px;right:22px;font-family:Georgia,serif;font-size:64px;color:#c9a96e;line-height:1;opacity:.28}
.facts{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:14px 34px;margin-top:22px}
.facts li{display:flex;gap:12px;font-size:14.5px;color:#42584b;line-height:1.6;align-items:flex-start}
.facts li i{color:#c9a96e;font-size:16px;margin-top:3px;flex-shrink:0}
.facts li b{color:#1d5039;display:block;margin-bottom:1px}

/* 产品内链 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel{background:#fff;border:1px solid #dfe8e1;border-radius:14px;padding:24px 22px;box-shadow:0 2px 10px rgba(15,42,31,.05);display:block;transition:.2s;border-top:3px solid transparent}
.rel:hover{border-top-color:#c9a96e;transform:translateY(-3px);box-shadow:0 8px 22px rgba(15,42,31,.11)}
.rel b{display:block;font-size:16px;color:#1d5039;margin-bottom:8px;letter-spacing:.3px}
.rel span{font-size:13.5px;color:#5a6d60;line-height:1.55}

@media(max-width:900px){.logi{grid-template-columns:1fr}}

/* FAQ */
.faq{max-width:920px;margin:0 auto}
.faq details{background:#fff;border:1px solid #e2ebe4;border-radius:12px;margin-bottom:14px;padding:18px 24px;box-shadow:0 2px 8px rgba(15,42,31,.04)}
.faq summary{font-size:17px;font-weight:700;color:#1d5039;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary i{color:#c9a96e;font-size:13px;flex:none}
.faq details p{font-size:15px;color:#42584b;margin-top:12px}
.faq details b{color:#1d5039}

/* CTA 条 */
.cta-band{background:linear-gradient(115deg,#1d5039,#2e7d4f);color:#fff;padding:60px 0;text-align:center}
.cta-band h2{font-size:32px;margin-bottom:12px}
.cta-band p{font-size:17px;color:#d4e8d8;margin-bottom:28px}
.cta-band .cta{justify-content:center;display:flex;gap:14px;flex-wrap:wrap}

/* 页脚 */
footer{background:#0f2a1f;color:#a8c0b0;padding:50px 0 24px;font-size:14px}
footer .in{max-width:1200px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:36px}
footer h4{color:#c9a96e;font-size:15px;margin-bottom:16px;letter-spacing:1px}
footer li{list-style:none;padding:5px 0;display:flex;gap:9px;align-items:flex-start}
footer li i{color:#c9a96e;font-size:12px;margin-top:6px;width:12px;flex:none}
footer li.c i{font-size:13px;margin-top:5px}
footer a:hover{color:#c9a96e}
footer .fbottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;text-align:center;font-size:13px;color:#6d8a78}

/* GEO 可引用采购速览 */
.quote{background:#fff;border-radius:14px;padding:26px 30px;box-shadow:0 4px 18px rgba(15,42,31,.08);border-left:5px solid #1d5039;font-size:16.5px;line-height:1.8;color:#2a4636;position:relative}
.quote::before{content:"\201C";position:absolute;top:6px;right:22px;font-family:Georgia,serif;font-size:64px;color:#c9a96e;line-height:1;opacity:.28}
.facts{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:14px 34px;margin-top:22px}
.facts li{display:flex;gap:12px;font-size:14.5px;color:#42584b;line-height:1.6;align-items:flex-start}
.facts li i{color:#c9a96e;font-size:16px;margin-top:3px;flex-shrink:0}
.facts li b{color:#1d5039;display:block;margin-bottom:1px}

/* 产品内链 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel{background:#fff;border:1px solid #dfe8e1;border-radius:14px;padding:24px 22px;box-shadow:0 2px 10px rgba(15,42,31,.05);display:block;transition:.2s;border-top:3px solid transparent}
.rel:hover{border-top-color:#c9a96e;transform:translateY(-3px);box-shadow:0 8px 22px rgba(15,42,31,.11)}
.rel b{display:block;font-size:16px;color:#1d5039;margin-bottom:8px;letter-spacing:.3px}
.rel span{font-size:13.5px;color:#5a6d60;line-height:1.55}

@media(max-width:900px){
  nav ul{display:none}
  .hero h1{font-size:31px}
  .hero .products{font-size:13px;letter-spacing:1px}
  .trust .in{grid-template-columns:repeat(2,1fr);gap:22px}
  .products-grid,.pindex-grid,.feat-grid,.steps,.cert-grid{grid-template-columns:1fr 1fr}
  .fac-grid,.cols2{grid-template-columns:1fr}
  footer .in{grid-template-columns:1fr 1fr}
  .pagehero h1{font-size:27px}
  .sec-head h2{font-size:26px}
  .answer .kv{grid-template-columns:1fr 1fr}
  .facts{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .products-grid,.pindex-grid,.feat-grid,.steps,.cert-grid,.fac-stats{grid-template-columns:1fr}
  footer .in{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .pagehero h1{font-size:23px}
  .spec th{width:38%}
  .answer .kv{grid-template-columns:1fr}
}

/* ---------- 移动端导航（CSS-only 汉堡菜单，无 JS） ---------- */
.mnu-box{position:absolute;opacity:0;width:0;height:0}
.mnu-toggle{display:none}
@media(max-width:900px){
  .mnu-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid #dce6df;border-radius:10px;color:#1d5039;font-size:20px;cursor:pointer;order:-1;margin-right:14px}
  .mnu-toggle:active{background:#eef4f0}
  nav .in{flex-wrap:wrap;height:auto;padding-bottom:12px}
  nav ul{display:none;flex:1 0 100%;margin-left:0;padding:6px 0 0;order:2}
  .mnu-box:checked ~ ul{display:flex;flex-direction:column;gap:0}
  nav ul a{display:block;padding:13px 2px;border-bottom:1px solid #edf3ef}
  nav .nav-cta{order:1;margin-left:0;flex:0 0 auto}
}
@media(max-width:560px){
  nav .nav-cta{padding:10px 14px;font-size:13px}
  nav ul a{font-size:14px;padding:12px 2px}
}