/* ============================================================
   Huatai Group — SAF from Waste Palm Oils / Solution page
   Updated: 2026-08 | Matches cnhuataigroup.com design system
   ============================================================ */
   @font-face{font-family:Roboto;src:url("../static/fonts/Roboto-Regular.ttf") format("truetype");font-weight:400;font-display:swap}
@font-face{font-family:Roboto;src:url("../static/fonts/Roboto-Medium.ttf") format("truetype");font-weight:500;font-display:swap}
@font-face{font-family:Roboto;src:url("../static/fonts/Roboto-Bold.ttf") format("truetype");font-weight:700;font-display:swap}
:root{
  --blue:#0870d7;
  --blue-2:#2394df;
  --navy:#0d2d55;
  --panel:#e3f0ff;
  --panel-2:#f1f5fc;
  --line:#cdddfa;
  --red:#e12a3e;
  --orange:#f66f35;
  --grad-cta:linear-gradient(90deg,#e12a3e 0%,#f66f35 100%);
  --grad-blue:linear-gradient(135deg,#0870d7 0%,#2394df 100%);
  --t1:#222; --t2:#333; --t3:#666; --t4:#999;
  --bg:#f7f7f7;
  --green:#25d366;
  --shadow:0 10px 30px rgba(13,45,85,.10);
  --radius:0 28px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Roboto',Arial,Helvetica,sans-serif;color:var(--t3);font-size:16px;line-height:1.75;background:#fff;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
table{border-collapse:collapse;width:100%}
.container{width:100%;max-width:1600px;margin:0 auto;padding:0 50px}
/* ---------- Inner banner ---------- */
.banner-inner{height:350px;position:relative;background:url("../images/saf-hefa-hero-banner.jpg") center/cover no-repeat;display:flex;align-items:flex-end}
.banner-inner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,45,85,.78) 0%,rgba(13,45,85,.45) 45%,rgba(8,112,215,.15) 100%)}
.banner-inner .container{position:relative;z-index:2;padding-bottom:42px}
.banner-inner h1{color:#fff;font-size:42px;font-weight:700;line-height:1.25;max-width:880px;text-shadow:0 2px 12px rgba(0,0,0,.25)}
.breadcrumb{margin-top:12px;color:rgba(255,255,255,.85);font-size:14px;letter-spacing:.5px}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{margin:0 9px;opacity:.7}
.breadcrumb .cur{color:#fff;font-weight:500}

/* ---------- Section skeleton ---------- */
section{padding:72px 0}
.sec-tag{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--red);color:var(--red);font-size:13px;font-weight:500;padding:4px 14px;border-radius:20px;margin-bottom:16px}
.sec-tag svg{width:15px;height:15px;fill:var(--red)}
.sec-title{font-size:28px;font-weight:700;color:var(--t1);line-height:1.3;display:flex;align-items:center;gap:14px;margin-bottom:14px}
.sec-title::before{content:"";width:5px;height:26px;border-radius:3px;background:var(--grad-cta);flex:none}
.sec-sub{color:var(--t4);font-size:15px;margin-bottom:40px;max-width:820px}
.lead{font-size:16.5px;color:var(--t3)}
p.bullet{position:relative;padding-left:22px;margin:14px 0}
p.bullet::before{content:"";position:absolute;left:2px;top:11px;width:9px;height:9px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px #e3f0ff}

/* ---------- Intro / stats ---------- */
.intro{background:var(--bg)}
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.intro-photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.intro-photo img{width:100%;height:420px;object-fit:cover}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:54px}
.stat{background:#fff;border-radius:14px;padding:26px 16px;text-align:center;border:1px solid #eaf1fb;transition:.25s}
.stat:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.stat .num{font-size:30px;font-weight:700;color:var(--blue);line-height:1.1}
.stat .num small{font-size:17px}
.stat .lab{font-size:13.5px;color:var(--t4);margin-top:8px;line-height:1.4}

/* ---------- Key facts table (SEO/GEO machine-readable) ---------- */
.facts{margin-top:54px;background:#fff;border:1px solid #e6eef9;border-radius:14px;overflow:hidden;box-shadow:0 6px 20px rgba(13,45,85,.06)}
.facts-head{background:var(--grad-blue);color:#fff;padding:15px 26px;font-weight:700;font-size:16.5px;display:flex;align-items:center;gap:10px}
.facts-head svg{width:20px;height:20px;fill:#fff}
.facts table{font-size:14.5px}
.facts th,.facts td{padding:13px 26px;text-align:left;vertical-align:top;border-bottom:1px solid #eef3fa}
.facts tr:last-child th,.facts tr:last-child td{border-bottom:none}
.facts th{width:31%;color:var(--navy);font-weight:700;background:var(--panel-2)}
.facts td{color:var(--t2)}
.facts td b{color:var(--blue)}

/* ---------- Feedstock cards ---------- */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.feed-card{background:#fff;border:1px solid #e6eef9;border-top:4px solid var(--blue);border-radius:14px;padding:32px 28px;transition:.25s}
.feed-card:nth-child(2){border-top-color:var(--blue-2)}
.feed-card:nth-child(3){border-top-color:var(--navy)}
.feed-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.feed-ico{width:56px;height:56px;border-radius:14px;background:var(--panel);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.feed-ico svg{width:30px;height:30px;fill:var(--blue)}
.feed-card h3{font-size:19px;color:var(--t1);font-weight:700;margin-bottom:6px}
.feed-card .abbr{font-size:12.5px;font-weight:700;letter-spacing:1px;color:var(--blue);text-transform:uppercase;margin-bottom:14px}
.feed-card p{font-size:14.5px;color:var(--t3);line-height:1.7}

/* ---------- Process flow ---------- */
.flow{background:var(--navy);position:relative;overflow:hidden}
.flow::before{content:"";position:absolute;inset:0;background:url("../static/images/saf-hefa-hero-banner.jpg") center/cover;opacity:.08}
.flow .container{position:relative;z-index:2}
.flow .sec-title{color:#fff}
.flow .sec-sub{color:rgba(255,255,255,.7)}
.flow-steps{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.flow-step{flex:1 1 130px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:18px 14px;color:#fff;position:relative;transition:.2s}
.flow-step:hover{background:var(--blue);border-color:var(--blue)}
.flow-step .n{font-size:12px;font-weight:700;color:#8fc4f5;letter-spacing:1px}
.flow-step .t{font-size:14.5px;font-weight:500;margin-top:7px;line-height:1.45}
.flow-step.main{background:var(--grad-blue);border-color:transparent}
.flow-step.main .n{color:rgba(255,255,255,.85)}

/* ---------- Unit blocks ---------- */
.unit{margin-bottom:64px}
.unit:last-child{margin-bottom:0}
.unit-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.unit-grid.flip .unit-photo{order:2}
.unit-photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.unit-photo img{width:100%;height:380px;object-fit:cover}
.unit h3{font-size:23px;color:var(--t1);font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.unit h3 .u-no{background:var(--grad-blue);color:#fff;font-size:14px;font-weight:700;padding:4px 12px;border-radius:16px;flex:none}
.unit .u-sub{color:var(--blue);font-weight:500;font-size:14px;text-transform:uppercase;letter-spacing:1px;margin-bottom:16px}
.route{background:var(--panel-2);border-left:4px solid var(--blue);border-radius:0 10px 10px 0;padding:16px 20px;margin:14px 0}
.route b{color:var(--navy)}
.route .chain{display:block;margin-top:6px;color:var(--t3);font-size:14.5px}
.spec-card{background:var(--panel);border-radius:14px;margin-top:20px;overflow:hidden}
.spec-head{background:var(--grad-blue);color:#fff;padding:15px 24px;font-weight:700;font-size:16px}
.spec-body{padding:20px 24px;display:grid;grid-template-columns:repeat(2,1fr);gap:12px 26px}
.spec-body div{font-size:14.5px;color:var(--navy);position:relative;padding-left:18px}
.spec-body div::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--blue)}
.spec-body b{font-weight:700}
.cuts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:18px 0}
.cut{border:1px solid var(--line);border-radius:12px;padding:18px;background:#fff}
.cut .tag{display:inline-block;font-size:12px;font-weight:700;padding:3px 11px;border-radius:12px;margin-bottom:10px;background:var(--panel);color:var(--blue)}
.cut.mid .tag{background:var(--grad-blue);color:#fff}
.cut h4{font-size:15.5px;color:var(--t1);margin-bottom:5px}
.cut p{font-size:13.5px;color:var(--t4);line-height:1.6}
/* isomerization schematic */
.iso-scheme{background:var(--panel-2);border:1px dashed var(--blue-2);border-radius:14px;padding:26px;margin-top:18px;text-align:center}
.iso-chain{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;font-family:monospace;font-size:15px;color:var(--navy);font-weight:700}
.dots{display:inline-flex;gap:5px}
.dots i{width:13px;height:13px;border-radius:50%;background:var(--blue-2);display:block}
.iso-arrow{color:var(--red);font-size:24px;font-weight:700}
.iso-note{font-size:13px;color:var(--t4);margin-top:12px;font-family:Roboto,sans-serif;font-weight:400}

/* ---------- Quality ---------- */
.quality{background:var(--bg)}
.quality-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}
.quality-photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.quality-photo img{width:100%;height:430px;object-fit:cover}
.q-list .q{display:flex;gap:16px;background:#fff;border-radius:12px;padding:20px 22px;margin-bottom:14px;border:1px solid #e6eef9}
.q-ico{width:42px;height:42px;border-radius:50%;background:var(--panel);flex:none;display:flex;align-items:center;justify-content:center}
.q-ico svg{width:21px;height:21px;fill:var(--blue)}
.q h3{font-size:16.5px;color:var(--t1);margin-bottom:4px;font-weight:700}
.q p{font-size:14.5px}
.q-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.q-pills span{background:var(--panel);color:var(--navy);font-size:13px;font-weight:500;padding:6px 15px;border-radius:20px}

/* ---------- Advantages ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.adv{background:#fff;border:1px solid #e6eef9;border-radius:14px;padding:30px 26px;transition:.25s}
.adv:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--line)}
.adv .ico{width:54px;height:54px;border-radius:50%;background:var(--grad-blue);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.adv .ico svg{width:26px;height:26px;fill:#fff}
.adv h3{font-size:17.5px;color:var(--t1);margin-bottom:9px}
.adv p{font-size:14.3px;color:var(--t3);line-height:1.7}

/* ---------- Applications ---------- */
.apps{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.apps::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:rgba(35,148,223,.18)}
.apps .container{position:relative;z-index:2}
.apps .sec-title{color:#fff}
.apps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:46px}
.app{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);border-radius:14px;padding:26px 22px;transition:.2s}
.app:hover{background:var(--blue);border-color:var(--blue)}
.app .n{font-size:13px;font-weight:700;color:#8fc4f5;letter-spacing:1px}
.app h3{font-size:16.5px;font-weight:500;margin-top:10px;line-height:1.5}
.apps-photo{border-radius:var(--radius);overflow:hidden}
.apps-photo img{width:100%;height:340px;object-fit:cover}

/* ---------- Package ---------- */
.pkg-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pkg{display:flex;gap:13px;align-items:flex-start;background:var(--panel-2);border-radius:12px;padding:18px 18px}
.pkg .dot{width:30px;height:30px;border-radius:50%;background:var(--grad-blue);color:#fff;font-size:13px;font-weight:700;flex:none;display:flex;align-items:center;justify-content:center}
.pkg span{font-size:14.5px;color:var(--t2);font-weight:500;line-height:1.45;padding-top:3px}
.pkg-targets{margin-top:34px;text-align:center;color:var(--t4);font-size:15px}
.pkg-targets b{color:var(--navy)}

/* ---------- FAQ (GEO) ---------- */
.faq{background:var(--bg)}
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.faq-item{background:#fff;border:1px solid #e6eef9;border-radius:14px;padding:24px 26px;transition:.25s}
.faq-item:hover{box-shadow:var(--shadow);border-color:var(--line)}
.faq-item h3{font-size:16.5px;color:var(--navy);font-weight:700;line-height:1.5;margin-bottom:10px;display:flex;gap:10px}
.faq-item h3::before{content:"Q";flex:none;width:24px;height:24px;border-radius:50%;background:var(--grad-blue);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center;margin-top:1px}
.faq-item p{font-size:14.5px;color:var(--t3);padding-left:34px}


/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .intro-grid,.unit-grid,.quality-wrap,.inq-wrap{grid-template-columns:1fr;gap:34px}
  .unit-grid.flip .unit-photo{order:0}
  .cards-3,.adv-grid{grid-template-columns:repeat(2,1fr)}
  .apps-grid,.pkg-grid{grid-template-columns:repeat(2,1fr)}
  .faq-list{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .nav-toggle{display:flex;margin-left:10px}
  .navs{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 14px 26px rgba(13,45,85,.14);border-top:1px solid #eef2f7}
  .navs.open{display:block}
  .navs>ul{flex-direction:column;align-items:stretch;gap:0;padding:8px 0}
  .navs>ul>li>a{padding:13px 26px;border-bottom:1px solid #f2f5fa}
  .navs>ul>li.active::after{display:none}
}
@media (max-width:640px){
  section{padding:52px 0}
  .container{padding:0 20px}
  .banner-inner{height:280px}
  .banner-inner h1{font-size:28px}
  .sec-title{font-size:22px}
  .cards-3,.adv-grid,.apps-grid,.pkg-grid,.cuts,.spec-body,.inq-form .row2{grid-template-columns:1fr}
  .flow-step{flex-basis:46%}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .inq-left,.inq-form{padding:32px 26px}
  .header_flex{height:70px}
  .logo img{height:42px}
  .facts th{width:38%}
  .facts th,.facts td{padding:11px 16px}
}