/* ========== 1. Tokens (绿色食品基调) ========== */
:root{
  /* 核心色盘：自然、健康、安全 */
  --ink:#0F3A26;        /* 深森林绿：用于首屏、页尾、主标题 */
  --ink-2:#154A31;      /* 次级深绿 */
  --action:#2E8B57;     /* 自然生鲜绿：主行动色，保证白字对比度 */
  --action-d:#20633E;   /* 深绿：按钮Hover状态 */
  
  --bg:#FFFFFF;
  --bg-soft:#F4F9F6;    /* 极浅植物绿：用于区块交替背景 */
  --border:#D5E4DB;     /* 浅绿灰边框：柔和过渡 */
  --text:#1A2B22;       /* 正文颜色：带有微微绿意的深灰 */
  --muted:#5E7164;      /* 辅助文字：灰绿色 */
  
  --radius:4px;
  --shadow:0 1px 2px rgba(15,58,38,.06),0 4px 16px rgba(15,58,38,.05);
  --shadow-h:0 4px 10px rgba(15,58,38,.08),0 12px 28px rgba(15,58,38,.10);
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);background:var(--bg);font-size:16px;line-height:1.625;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
img{max-width:100%;display:block}

/* ========== 2. Layout ========== */
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section.soft{background:var(--bg-soft)}
.section.tight{padding:64px 0}
h1{font-size:44px;line-height:1.18;font-weight:700;letter-spacing:-.02em}
h2{font-size:32px;line-height:1.25;font-weight:700;letter-spacing:-.01em}
h3{font-size:22px;line-height:1.35;font-weight:600}
.lead{font-size:18px;color:var(--muted);line-height:1.65}
.small{font-size:14px;color:var(--muted);line-height:1.57}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--action-d)}

/* ========== 3. Buttons ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:.18s ease;white-space:nowrap;
}
.btn-primary{background:#94C245;color:#fff}
.btn-primary:hover{background:var(--action-d);transform:translateY(-1px);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--ink);background:#fff}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost-light:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn-text{height:auto;padding:0;color:#333;font-weight:600;font-size:14px;background:none;border:none}
.btn-text:hover{text-decoration:underline;color:#333}

/* ========== 4. Header ========== */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid var(--border);
}
.header-inner{height:80px;display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;letter-spacing:-.01em;flex-shrink:0}
.logo-mark{width:32px;height:32px;border-radius:6px;background:linear-gradient(135deg,var(--ink),var(--ink-2));position:relative}
.logo-mark::after{content:"";position:absolute;inset:9px;border:2px solid var(--action);border-radius:2px}
.logo-img{width:32px;height:32px;border-radius:6px;object-fit:contain;flex-shrink:0}
.logo small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.04em;line-height:1}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{
  padding:8px 12px;border-radius:4px;font-size:15px;font-weight:500;color:#3D5044;
  transition:.15s;
}
.nav a:hover{background:var(--bg-soft);color:var(--ink)}
.nav a.active{color:var(--ink);font-weight:700;position:relative}
.nav a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;background:var(--action);border-radius:2px;
}
.header-cta{display:flex;align-items:center;gap:16px;margin-left:24px;flex-shrink:0}
.header-cta .link{font-size:15px;font-weight:500;color:#3D5044}
.header-cta .link:hover{color:var(--action-d)}
.burger{display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:4px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

/* ========== 5. Hero ========== */
.hero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;right:-160px;top:-160px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,139,87,.25),transparent 65%);
}
.hero-inner{display:grid;grid-template-columns:1fr 560px;gap:64px;align-items:center;padding:72px 0 64px;position:relative}
.hero h1{color:#fff;margin-bottom:20px}
.hero .lead{color:rgba(255,255,255,.75);margin-bottom:32px;max-width:520px}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.hero-link{color:#fff;font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:2px}
.hero-link:hover{border-color:var(--action);color:var(--action)}
.trust-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:0 0 64px;position:relative}
.trust-tag{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:99px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  font-size:13px;font-weight:500;color:rgba(255,255,255,.9);
}
.trust-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--action)}
.hero-visual{width:100%}
.hero-carousel{position:relative;width:100%;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;background:#16241c;box-shadow:var(--shadow-h)}
.hero-slide{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .6s ease}
.hero-slide.is-active{opacity:1}
.hero-dots{position:absolute;left:18px;bottom:16px;display:flex;gap:7px;z-index:2}
.hero-dots button{width:8px;height:8px;padding:0;border:0;border-radius:99px;background:rgba(255,255,255,.45);cursor:pointer;transition:.2s}
.hero-dots button.is-active{width:24px;background:#fff}

/* 占位图 */
.ph{
  background:linear-gradient(135deg,#E8F0EB 0%,#CFE0D6 100%);
  border-radius:var(--radius);display:flex;align-items:center;justify-content:center;
  color:#7B9A87;font-size:13px;font-weight:500;text-align:center;padding:16px;
  position:relative;overflow:hidden;
}
.ph::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.35) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:32px 32px;opacity:.35;
}
.ph span{position:relative;z-index:1;background:rgba(255,255,255,.6);padding:4px 10px;border-radius:3px}
.ph.has-media{padding:0;background:#E8F0EB}
.ph.has-media::after{display:none}
.ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.ph-dark{background:linear-gradient(135deg,#154A31 0%,#0F3A26 100%);color:rgba(255,255,255,.65)}
.ph-dark span{background:rgba(255,255,255,.12)}
.ph-ar{aspect-ratio:16/9}

/* ========== 6. Cards ========== */
.card-grid{display:grid;gap:24px;}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:.2s ease;display:flex;flex-direction:column;
}
.card:hover{border-color:#AECBBF;box-shadow:var(--shadow-h);transform:translateY(-2px)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3{font-size:18px;color:#fff}
.card-foot{display:flex;gap:12px;margin-top:auto;padding-top:8px}
.tag-row{display:flex;gap:6px;flex-wrap:wrap}
.tag{
  font-size:12px;font-weight:500;padding:3px 8px;border-radius:3px;
  background:var(--bg-soft);color:#405747;border:1px solid #DCE8E1;
}
.tag-accent{background:#fff;color:var(--action-d);border-color:#CDE4D7}

/* 双入口 */
.dual{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.panel{background:#94c245;border:1px solid var(--border);border-radius:var(--radius);padding:32px}
.panel-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:8px}
.panel-head h2{font-size:26px;color:#fff}
.panel-sub{color:var(--action-d);font-size:15px;margin-bottom:24px}
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mini{
  border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff;
  transition:.18s;display:flex;flex-direction:column;
}
.mini:hover{border-color:var(--action);box-shadow:var(--shadow)}
.mini .ph{aspect-ratio:4/3;border-radius:0}
.mini-body{background:#fff;padding:12px;font-size:14px;font-weight:600;line-height:1.4}
.mini-body small{display:block;font-weight:400;color:var(--muted);font-size:12px;margin-top:4px}

/* 数字条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{border-left:2px solid var(--action);padding-left:16px}
.stat b{display:block;font-size:36px;line-height:1.1;font-weight:700;color:#93c144;letter-spacing:-.02em}
.stat span{font-size:13px;color:#93C144;display:block;margin-top:6px}
.logo-strip{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:40px;padding-top:32px;border-top:1px solid var(--border)}
.logo-chip{font-size:12px;font-weight:600;color:#fff;border-radius:3px;padding:8px 14px;background:#6fa44c}

/* 文章 */
.note{background:#94c245;border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:.18s}
.note:hover{border-color:var(--action);box-shadow:var(--shadow)}
.note h3{font-size:17px;margin:10px 0 8px;line-height:1.45;color:#fff}
.note .small{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#c2dd96}

/* 页头 */
.page-head{padding:56px 0 32px;border-bottom:1px solid var(--border);background:#fff}
.breadcrumb{display:flex;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--action-d)}
.breadcrumb span{color:#A3B8AA}
.page-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap}
.search{display:flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:var(--radius);height:48px;padding:0 16px;background:#fff;min-width:320px}
.search input{border:none;outline:none;font-size:15px;width:100%;font-family:inherit;background:transparent}
.search svg{flex-shrink:0;color:var(--muted)}

/* 筛选 */
.filter-bar{display:flex;align-items:center;gap:8px;padding:20px 0;flex-wrap:wrap;border-bottom:1px solid var(--border);margin-bottom:40px}
.seg{display:inline-flex;background:var(--bg-soft);border-radius:var(--radius);padding:4px}
.seg button{border:none;background:none;padding:8px 16px;font-size:14px;font-weight:600;border-radius:3px;color:var(--muted)}
.seg button.on{background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(15,58,38,.08)}
.chip{border:1px solid var(--border);background:#fff;border-radius:99px;padding:7px 14px;font-size:13px;font-weight:500;color:#405747}
.chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.chip:hover{border-color:var(--action)}

/* 产品卡 */
.pcard .ph{aspect-ratio:16/9;border-radius:0}
.pcard .meta{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.file-status{display:flex;gap:10px;font-size:12px;font-weight:600;color:#2E8B57}
.file-status i{font-style:normal}

/* 详情 */
.detail-top{display:grid;grid-template-columns:520px 1fr;gap:56px;padding:48px 0}
.gallery-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:12px}
.gallery-thumbs .ph{aspect-ratio:1;cursor:pointer;border:1px solid var(--border)}
.gallery-thumbs .ph:hover{border-color:var(--action)}
.value-points{list-style:none;display:flex;flex-direction:column;gap:8px;margin:20px 0 28px}
.value-points li{display:flex;gap:10px;font-size:15px;color:#3D5044}
.value-points li::before{content:"✓";color:var(--action);font-weight:700;flex-shrink:0}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:8px}

table.spec{width:100%;border-collapse:collapse;font-size:15px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
table.spec th,table.spec td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--border)}
table.spec th{width:36%;background:var(--bg-soft);font-weight:600;color:#3D5044;font-size:14px}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:none}
table.spec td{font-variant-numeric:tabular-nums}

.file-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.file-btn{
  display:flex;flex-direction:column;gap:6px;align-items:flex-start;
  padding:16px;border:1px solid var(--border);border-radius:var(--radius);background:#fff;
  transition:.18s;text-align:left;
}
.file-btn:hover{border-color:var(--action);box-shadow:var(--shadow)}
.file-btn b{font-size:14px;font-weight:700}
.file-btn small{font-size:12px;color:var(--muted)}
.file-btn .ico{width:28px;height:28px;border-radius:3px;background:#EAF4EE;color:var(--action-d);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}

.sec-title{display:flex;align-items:baseline;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-title h2{max-width:720px}
.sec-title .small{max-width:420px}

/* 行业应用 */
.app-hero{background:var(--ink);color:#fff;padding:64px 0}
.app-hero .grid{display:grid;grid-template-columns:1fr 520px;gap:64px;align-items:center}
.app-hero h1{color:#fff;margin-bottom:20px}
.app-hero .lead{color:rgba(255,255,255,.75);margin-bottom:32px;max-width:520px}
.pain-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pain{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;display:flex;gap:14px}
.pain .num{font-size:13px;font-weight:700;color:var(--action);flex-shrink:0;padding-top:2px}
.pain b{display:block;font-size:16px;margin-bottom:6px;line-height:1.4}
.pain p{font-size:14px;color:var(--muted);line-height:1.6}

.solution{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px;display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:start}
.solution + .solution{margin-top:24px}
.solution h3{margin-bottom:12px}
.solution .desc{color:var(--muted);font-size:15px;margin-bottom:20px}
.sol-products{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}
.sol-products a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border:1px solid var(--border);border-radius:3px;font-size:14px;font-weight:500;transition:.15s}
.sol-products a:hover{border-color:var(--action);background:#F9FCFA;color:var(--action-d)}
.sol-meta{background:var(--bg-soft);border-radius:var(--radius);padding:20px}
.sol-meta dl{display:flex;flex-direction:column;gap:14px}
.sol-meta dt{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px}
.sol-meta dd{font-size:15px;font-weight:600;color:var(--ink)}
.reg-box{background:#fff;border:1px solid var(--border);border-left:3px solid var(--action);border-radius:var(--radius);padding:28px}
.reg-box h3{margin-bottom:14px}
.reg-box ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.reg-box li{display:flex;gap:12px;font-size:15px;line-height:1.6}
.reg-box li::before{content:"§";color:var(--action);font-weight:700;flex-shrink:0}

/* 资源中心 */
.type-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.type-card{border:1px solid var(--border);border-radius:var(--radius);padding:20px;background:#fff;transition:.18s;text-align:left}
.type-card:hover{border-color:var(--action);box-shadow:var(--shadow)}
.type-card b{display:block;font-size:15px;margin-bottom:6px}
.type-card small{font-size:12px;color:var(--muted);display:block;line-height:1.5;margin-bottom:10px}
.type-card .pill{font-size:11px;font-weight:600;padding:2px 7px;border-radius:2px;background:#EAF4EE;color:var(--action-d)}
.type-card .pill.req{background:#EAF4EE;color:var(--action-d)}

.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:#fff}
table.data{width:100%;border-collapse:collapse;font-size:14px}
table.data th{background:var(--bg-soft);text-align:left;padding:12px 16px;font-size:12px;font-weight:700;color:#405747;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);white-space:nowrap}
table.data td{padding:14px 16px;border-bottom:1px solid #EDF4F0;vertical-align:middle}
table.data tr:last-child td{border-bottom:none}
table.data tr:hover td{background:#F9FCFA}
table.data .mono{font-variant-numeric:tabular-nums;color:#405747}
.ver{font-size:12px;padding:2px 6px;background:var(--bg-soft);border-radius:2px;font-weight:600;color:#405747}

/* 表单 */
.form-layout{display:grid;grid-template-columns:1fr 1fr;gap:64px;padding:64px 0;align-items:start}
.rules{list-style:none;display:flex;flex-direction:column;gap:14px;margin:24px 0 32px}
.rules li{display:flex;gap:12px;font-size:15px;line-height:1.6;color:#3D5044}
.rules li::before{content:"";width:18px;height:18px;border-radius:50%;background:#EAF4EE;border:1px solid #CDE4D7;flex-shrink:0;margin-top:2px}
.trust-inline{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px;padding-top:24px;border-top:1px solid var(--border)}
.trust-inline .logo-chip{font-size:11px;padding:6px 10px}
.secure{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-top:16px}

.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:#3D5044}
.field label .req{color:var(--action-d)}
.field .hint{font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.field input,.field select,.field textarea{
  width:100%;height:48px;border:1px solid var(--border);border-radius:var(--radius);
  padding:0 14px;font-size:15px;font-family:inherit;color:var(--text);background:#fff;outline:none;transition:.15s;
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;min-height:110px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--action);box-shadow:0 0 0 3px rgba(46,139,87,.15)}
.field input.err{border-color:#D64545}
.err-msg{display:none;font-size:13px;color:#D64545;margin-top:6px}
.err-msg.show{display:block}
.size-group{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.size-group button{height:44px;border:1px solid var(--border);background:#fff;border-radius:var(--radius);font-size:14px;font-weight:600;color:#405747;transition:.15s}
.size-group button.on{border-color:var(--action);background:#F9FCFA;color:var(--action-d)}
.form-note{font-size:12px;color:var(--muted);text-align:center;margin-top:14px;line-height:1.6}

.success{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow);display:none}
.success.show{display:block}
.success .check{width:52px;height:52px;border-radius:50%;background:#EAF4EE;color:var(--action-d);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;margin-bottom:20px}
.success h3{margin-bottom:10px}
.success .next{background:var(--bg-soft);border-radius:var(--radius);padding:20px;margin:24px 0}
.success .next b{display:block;font-size:14px;margin-bottom:6px}
.success .next p{font-size:14px;color:var(--muted)}
.success-links{display:flex;gap:12px;flex-wrap:wrap}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact-card{border:1px solid var(--border);border-radius:var(--radius);padding:24px;background:#fff;transition:.18s}
.contact-card:hover{border-color:var(--action);box-shadow:var(--shadow)}
.contact-card b{display:block;font-size:16px;margin-bottom:6px}
.contact-card small{font-size:13px;color:var(--muted);display:block;line-height:1.6;margin-bottom:14px}
.info-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px;padding-top:32px;border-top:1px solid var(--border)}
.info-row b{display:block;font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:8px}
.info-row p{font-size:14px;line-height:1.7}

/* 弹窗 */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.modal.show{display:flex}
.modal-bg{position:absolute;inset:0;background:rgba(15,58,38,.6);backdrop-filter:blur(2px)}
.modal-card{position:relative;background:#fff;border-radius:var(--radius);width:100%;max-width:480px;padding:32px;box-shadow:0 24px 64px rgba(0,0,0,.24);max-height:90vh;overflow:auto}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px}
.modal-head h3{font-size:20px}
.modal-close{width:32px;height:32px;border:none;background:var(--bg-soft);border-radius:4px;font-size:18px;color:var(--muted);line-height:1}
.modal-close:hover{background:#D5E4DB;color:var(--ink)}

/* 页尾 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.75);padding:64px 0 32px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12)}
.site-footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.site-footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.site-footer a:hover{color:var(--action)}
.footer-brand p{font-size:13px;line-height:1.7;margin-top:16px;max-width:320px;color:rgba(255,255,255,.6)}
.footer-bottom{display:flex;justify-content:space-between;gap:24px;padding-top:24px;font-size:13px;color:rgba(255,255,255,.5);flex-wrap:wrap}
.footer-bottom a:hover{color:#fff}

/* 吸底 CTA */
.sticky-cta{display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;background:#fff;border-top:1px solid var(--border);padding:10px 20px calc(10px + env(safe-area-inset-bottom));box-shadow:0 -4px 16px rgba(15,58,38,.08)}

/* 页面切换 */
.page{display:none}
.page.active{display:block}

/* CTA 条 */
.cta-band{background:var(--bg-soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:56px 0}
.cta-band-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:28px;max-width:620px}
.cta-band p{color:var(--muted);margin-top:8px;font-size:15px}

/* ========== 响应式 ========== */
@media (max-width:1279px){
  .hero-inner,.app-hero .grid{grid-template-columns:1fr;gap:40px}
  .hero .ph,.app-hero .ph{max-width:560px}
  .detail-top{grid-template-columns:1fr;gap:40px}
  .detail-top > .ph{max-width:520px}
  .form-layout{grid-template-columns:1fr;gap:40px}
  .solution{grid-template-columns:1fr}
  .type-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  .nav,.header-cta .link{display:none}
  .burger{display:flex}
  .header-cta{margin-left:auto}
  .g3,.dual,.mini-grid,.contact-grid,.info-row,.footer-grid{grid-template-columns:1fr}
  .pain-list{grid-template-columns:1fr}
  .file-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:20px}
  .section{padding:64px 0}
  h1{font-size:34px}
  h2{font-size:26px}
  .type-grid{grid-template-columns:repeat(2,1fr)}
  .section.soft .dual{gap:20px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  h1{font-size:32px;line-height:1.25}
  h2{font-size:26px}
  .hero-inner{padding:48px 0 40px}
  .hero .lead{font-size:16px}
  .trust-row{padding-bottom:40px}
  .section{padding:48px 0}
  .section.tight{padding:40px 0}
  .detail-top{padding:32px 0}
  .file-grid{grid-template-columns:1fr}
  .search{min-width:0;width:100%}
  .page-head-row{gap:20px}
  .size-group{grid-template-columns:repeat(2,1fr)}
  .footer-grid{gap:32px}
  .modal{padding:0;align-items:flex-end}
  .modal-card{max-width:100%;border-radius:12px 12px 0 0;padding:24px;max-height:92vh}
  .sticky-cta{display:flex;gap:10px}
  .page.active:has(.sticky-cta) .site-footer{padding-bottom:96px}
  .form-card{padding:24px}
  .success{padding:28px}
  .cta-band-inner{flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:24px}
  .panel{padding:24px}
  table.data{font-size:13px}
  table.data th,table.data td{padding:10px 10px}
}
@media (max-width:450px){
  .header-cta .btn{display:none}
  .header-inner{height:68px;gap:16px}
}