/* ============================================================
 * SBGE Global · 海外销售站样式（面向孟加拉/全球客户）
 * 品牌：翡翠绿 + 旭日橙 + 阳光金；权威、可信、强转化
 * ============================================================ */
:root{
  --green:#0E8A6B; --green-d:#06402F; --green-l:#12A580;
  --orange:#F2821C; --orange-d:#D96C06; --gold:#FFC53D;
  --ink:#10231C; --body:#3B4A44; --muted:#6E7E77;
  --bg:#F4F7F5; --card:#FFFFFF; --line:#E4ECE7;
  --shadow:0 8px 30px rgba(6,64,47,.08); --shadow-sm:0 3px 14px rgba(6,64,47,.06);
  --radius:18px; --radius-sm:12px;
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter','Roboto','Segoe UI','Noto Sans Bengali','SolaimanLipi',Arial,sans-serif;
  color:var(--body);background:var(--bg);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
body.bn{font-family:'Noto Sans Bengali','SolaimanLipi','Inter',Arial,sans-serif;line-height:1.85}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:64px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}
.sec-head .eyebrow{display:inline-block;color:var(--orange);font-weight:800;letter-spacing:.12em;
  text-transform:uppercase;font-size:13px;margin-bottom:10px}
.sec-head h2{color:var(--ink);font-size:clamp(26px,3.4vw,38px);line-height:1.2;font-weight:800}
.sec-head p{margin-top:14px;color:var(--muted);font-size:17px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:50px;font-weight:700;font-size:16px;cursor:pointer;
  border:2px solid transparent;transition:.2s;min-height:48px;text-align:center}
.btn-orange{background:linear-gradient(135deg,var(--orange),var(--orange-d));color:#fff;box-shadow:0 8px 22px rgba(242,130,28,.32)}
.btn-orange:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(242,130,28,.4)}
.btn-green{background:linear-gradient(135deg,var(--green-l),var(--green));color:#fff;box-shadow:0 8px 22px rgba(14,138,107,.3)}
.btn-green:hover{transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.22)}
.btn-light{background:#fff;color:var(--green-d)}
.btn-block{width:100%}
.btn-lg{padding:17px 36px;font-size:17px}

/* ---------- Top nav ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:22px;height:70px}
.logo{display:flex;flex-direction:column;line-height:1.05;font-weight:800;color:var(--green-d);white-space:nowrap}
.logo b{font-size:19px;letter-spacing:.2px}
.logo small{font-size:9.5px;letter-spacing:.16em;color:var(--muted);font-weight:700}
.nav-links{display:flex;gap:4px;margin-left:auto}
.nav-links a{padding:9px 13px;border-radius:9px;font-size:14.5px;font-weight:600;color:var(--body);transition:.15s}
.nav-links a:hover{background:#EAF4EF;color:var(--green-d)}
.langs{display:flex;background:#EDF3F0;border-radius:50px;padding:3px}
.langs button{border:0;background:transparent;padding:7px 13px;border-radius:50px;font-weight:700;
  font-size:13.5px;color:var(--muted);cursor:pointer;min-width:42px}
.langs button.on{background:var(--green);color:#fff}
.nav-cta{display:inline-flex;align-items:center;gap:7px;background:var(--orange);color:#fff;
  padding:11px 18px;border-radius:50px;font-weight:700;font-size:14px}
.burger{display:none;background:none;border:0;font-size:26px;color:var(--green-d);cursor:pointer;margin-left:auto}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;padding:84px 0 96px;overflow:hidden;
  background:radial-gradient(1200px 600px at 78% -10%,rgba(255,197,61,.22),transparent 60%),
  radial-gradient(900px 500px at 8% 110%,rgba(18,165,128,.35),transparent 55%),
  linear-gradient(135deg,#06402F 0%,#0A5A42 55%,#0E8A6B 100%)}
.hero::after{content:"";position:absolute;inset:0;opacity:.14;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);background-size:52px 52px}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.28);padding:8px 16px;border-radius:50px;font-size:13.5px;font-weight:700;margin-bottom:22px}
.hero h1{font-size:clamp(32px,4.6vw,54px);line-height:1.1;font-weight:800;letter-spacing:-.5px}
.hero h1 .hl{color:var(--gold)}
.hero p.lead{margin:20px 0 30px;font-size:18.5px;color:#DCEDE6;max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{display:flex;gap:24px;margin-top:34px;flex-wrap:wrap}
.hero-trust div{font-size:13.5px;color:#BFD8CD;display:flex;align-items:center;gap:8px}
.hero-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:22px;
  padding:26px;backdrop-filter:blur(8px)}
.hero-card h4{font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:#BFE0D4;margin-bottom:18px}
.hero-card .row{display:flex;justify-content:space-between;align-items:center;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.hero-card .row:last-child{border:0}
.hero-card .row b{font-size:24px;color:#fff}
.hero-card .row span{font-size:13px;color:#C9E2D8;text-align:right}

/* ---------- Trust strip ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line);padding:0}
.trust-in{display:grid;grid-template-columns:repeat(5,1fr)}
.trust .s{padding:30px 18px;text-align:center;border-right:1px solid var(--line)}
.trust .s:last-child{border:0}
.trust .n{font-size:clamp(26px,3vw,36px);font-weight:800;color:var(--green);line-height:1.1}
.trust .n.orange{color:var(--orange)}
.trust .t{font-size:13.5px;color:var(--muted);margin-top:6px;font-weight:600}

/* ---------- Pain / solution ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pain-card{background:var(--card);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm);
  border:1px solid var(--line);border-top:4px solid var(--orange)}
.pain-card .ic{width:56px;height:56px;border-radius:14px;background:#FDF0E3;display:flex;align-items:center;
  justify-content:center;font-size:28px;margin-bottom:16px}
.pain-card h3{color:var(--ink);font-size:19px;margin-bottom:9px}
.pain-card p{color:var(--muted);font-size:15px}
.pain-card .arrow{margin-top:14px;color:var(--green);font-weight:700;font-size:14px;display:flex;align-items:center;gap:7px}

/* ---------- Modes ---------- */
.modes{background:linear-gradient(180deg,#0A5139,#06402F);color:#fff}
.modes .sec-head h2{color:#fff}.modes .sec-head p{color:#C6DED5}
.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.mode-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:34px;position:relative;overflow:hidden}
.mode-card.feature{background:linear-gradient(150deg,rgba(242,130,28,.92),rgba(217,108,6,.92));border-color:transparent}
.mode-card .tag{display:inline-block;background:rgba(255,255,255,.18);padding:5px 13px;border-radius:50px;
  font-size:12px;font-weight:800;letter-spacing:.1em;margin-bottom:16px}
.mode-card h3{font-size:24px;margin-bottom:12px}
.mode-card ul{list-style:none;margin:18px 0 24px}
.mode-card li{padding:7px 0 7px 30px;position:relative;font-size:15px;color:#E7F2ED}
.mode-card.feature li{color:#FFF3E8}
.mode-card li::before{content:"✓";position:absolute;left:0;top:7px;font-weight:800;color:var(--gold)}
.mode-card.feature li::before{color:#fff}
.mode-card .mbtn{display:inline-block;background:#fff;color:var(--green-d);padding:12px 24px;border-radius:50px;font-weight:700}
.mode-card.feature .mbtn{background:#fff;color:var(--orange-d)}

/* ---------- Why us ---------- */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.why .ic{font-size:30px;margin-bottom:14px}
.why h4{color:var(--ink);font-size:18px;margin-bottom:8px}
.why p{color:var(--muted);font-size:14.5px}

/* ---------- Featured cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.2s;display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.case-thumb{height:150px;position:relative;display:flex;align-items:center;justify-content:center;font-size:54px}
.case-flag{position:absolute;top:10px;left:10px;background:rgba(6,64,47,.78);color:#fff;font-size:12px;
  padding:4px 10px;border-radius:50px;font-weight:700}
.case-kw{position:absolute;bottom:10px;right:10px;background:var(--orange);color:#fff;font-size:13px;
  padding:4px 11px;border-radius:50px;font-weight:800}
.case-body{padding:16px;flex:1;display:flex;flex-direction:column}
.case-body h4{font-size:15.5px;color:var(--ink);line-height:1.35;margin-bottom:6px}
.case-body .meta{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:5px;margin-bottom:9px}
.case-tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:auto}
.case-tags span{background:#EAF4EF;color:var(--green);font-size:11px;padding:3px 9px;border-radius:50px;font-weight:700}
.case-more{text-align:center;margin-top:38px}

/* ---------- Brands wall ---------- */
.brands{background:#fff}
.brand-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.brand{border:1px solid var(--line);border-radius:14px;padding:22px 12px;text-align:center;
  font-weight:800;color:var(--green-d);font-size:15px;background:#FBFDFC;transition:.15px;min-height:78px;
  display:flex;align-items:center;justify-content:center}
.brand:hover{border-color:var(--green);box-shadow:var(--shadow-sm)}
.brand-note{text-align:center;color:var(--muted);font-size:14px;margin-top:24px}

/* ---------- LEED ---------- */
.leed-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.leed-ranks{display:flex;gap:14px;margin:20px 0}
.leed-rank{flex:1;text-align:center;padding:20px 12px;border-radius:14px;font-weight:800}
.leed-rank .r{font-size:15px}.leed-rank .lv{font-size:19px;margin-top:5px}
.lv-p{background:linear-gradient(135deg,#0E8A6B,#06402F);color:#fff}
.lv-g{background:#F2B705;color:#3a2c00}
.lv-s{background:#C7D2CC;color:#28322e}
.leed-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:8px}
.leed-points div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 15px;
  font-size:14px;font-weight:600;color:var(--ink);display:flex;gap:9px;align-items:center}
.leed-visual{background:linear-gradient(150deg,#0E8A6B,#06402F);border-radius:24px;padding:44px;color:#fff;
  text-align:center;box-shadow:var(--shadow)}
.leed-visual .big{font-size:64px;font-weight:800;color:var(--gold);line-height:1}
.leed-visual p{margin-top:12px;color:#CFE6DC;font-size:16px}

/* ---------- Policy band ---------- */
.policy-band{background:linear-gradient(135deg,#FFF6E8,#FFEFD6);border:1px solid #F6D9AC;border-radius:22px;
  padding:38px;display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:center}
.policy-band h3{color:var(--orange-d);font-size:26px;margin-bottom:12px}
.policy-band ul{list-style:none}
.policy-band li{padding:8px 0 8px 28px;position:relative;font-size:15px;color:#5c4a33}
.policy-band li::before{content:"◆";position:absolute;left:0;color:var(--orange)}
.policy-tax{display:flex;flex-wrap:wrap;gap:10px}
.policy-tax span{background:#fff;border:1px solid #EBC794;border-radius:10px;padding:10px 14px;
  font-weight:800;color:var(--orange-d);font-size:14px;text-align:center}
.policy-tax span b{display:block;font-size:21px;color:var(--green)}

/* ---------- Testimonials ---------- */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.testi .stars{color:var(--gold);font-size:18px;margin-bottom:12px}
.testi p{font-size:15px;color:var(--body);font-style:italic}
.testi .who{display:flex;align-items:center;gap:12px;margin-top:18px}
.testi .av{width:46px;height:46px;border-radius:50%;background:var(--green);color:#fff;display:flex;
  align-items:center;justify-content:center;font-weight:800;font-size:18px}
.testi .who b{display:block;color:var(--ink);font-size:15px;font-style:normal}
.testi .who span{font-size:13px;color:var(--muted);font-style:normal}

/* ---------- Quick calculator + lead ---------- */
.lead-sec{background:linear-gradient(135deg,#06402F,#0E8A6B);color:#fff}
.lead-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align:center}
.calc-box{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:20px;padding:30px}
.calc-box label{font-size:14px;color:#CDE7DD;font-weight:700;display:block;margin-bottom:8px}
.calc-box input[type=range]{width:100%;accent-color:var(--gold);height:6px}
.calc-out{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.calc-out .o{background:rgba(255,255,255,.1);border-radius:13px;padding:15px}
.calc-out .o b{display:block;font-size:23px;color:var(--gold)}
.calc-out .o span{font-size:12.5px;color:#C6E2D7}
.lead-form{background:#fff;border-radius:20px;padding:34px;color:var(--body);box-shadow:var(--shadow)}
.lead-form h3{color:var(--ink);font-size:23px;margin-bottom:6px}
.lead-form .sub{color:var(--muted);font-size:14px;margin-bottom:20px}
.field{margin-bottom:14px}
.field input,.field select{width:100%;padding:14px 16px;border:1.5px solid var(--line);border-radius:12px;
  font-size:15.5px;font-family:inherit;color:var(--ink);background:#FBFDFC}
.field input:focus,.field select:focus{outline:none;border-color:var(--green);background:#fff}
.lead-form .btn{margin-top:6px}
.form-note{text-align:center;font-size:12.5px;color:var(--muted);margin-top:12px}
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(120px);background:var(--green-d);
  color:#fff;padding:14px 24px;border-radius:50px;font-weight:700;z-index:200;transition:.35s;box-shadow:var(--shadow)}
.toast.show{transform:translateX(-50%) translateY(0)}

/* ---------- Footer ---------- */
.footer{background:#04271D;color:#B9D2C8;padding:60px 0 0;font-size:14.5px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:40px}
.footer h5{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.04em}
.footer ul{list-style:none}.footer li{padding:5px 0}
.footer a:hover{color:var(--gold)}
.foot-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:12px}
.foot-contact div{padding:6px 0;display:flex;gap:9px;align-items:flex-start}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;
  justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8FB3A6}
.foot-bottom a{color:var(--gold)}

/* ---------- Cases page ---------- */
.subhero{background:linear-gradient(135deg,#06402F,#0E8A6B);color:#fff;padding:56px 0;text-align:center}
.subhero h1{font-size:clamp(28px,4vw,42px);font-weight:800}
.subhero p{color:#CDE7DD;margin-top:10px;font-size:17px}
.filter-tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:30px 0 8px}
.filter-tabs button{border:1.5px solid var(--line);background:#fff;padding:10px 20px;border-radius:50px;
  font-weight:700;color:var(--muted);cursor:pointer;font-size:14.5px}
.filter-tabs button.on{background:var(--green);color:#fff;border-color:var(--green)}
.case-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:34px 0}
.case-summary .o{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;text-align:center}
.case-summary .o b{font-size:26px;color:var(--green);display:block}
.case-summary .o span{font-size:13px;color:var(--muted)}

/* ---------- Case detail ---------- */
.detail-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:36px;align-items:start;margin-top:36px}
.detail-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.detail-banner{height:280px;display:flex;align-items:center;justify-content:center;font-size:96px;position:relative}
.detail-body{padding:32px}
.detail-body h1{color:var(--ink);font-size:28px;line-height:1.25;margin-bottom:10px}
.detail-body .addr{color:var(--muted);font-size:14.5px;margin-bottom:20px;display:flex;gap:7px;align-items:center}
.detail-body h4{color:var(--green-d);font-size:16px;margin:24px 0 10px}
.detail-body p{color:var(--body);font-size:15.5px}
.param-table{width:100%;border-collapse:collapse;margin-top:6px}
.param-table th,.param-table td{padding:12px 14px;border-bottom:1px solid var(--line);font-size:14.5px;text-align:left}
.param-table th{background:#F2F8F5;color:var(--green-d);font-weight:700;width:38%}
.detail-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:90px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.side-box h4{color:var(--ink);font-size:17px;margin-bottom:14px}
.side-cta{background:linear-gradient(135deg,#06402F,#0E8A6B);color:#fff;border-radius:var(--radius);padding:26px;text-align:center}
.side-cta h4{color:#fff;margin-bottom:10px}
.side-cta p{font-size:14px;color:#CFE6DC;margin-bottom:16px}
.related-mini{display:flex;flex-direction:column;gap:12px}
.related-mini a{display:flex;gap:12px;align-items:center;padding:10px;border-radius:11px}
.related-mini a:hover{background:#F2F8F5}
.related-mini .t{width:52px;height:52px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:24px}
.related-mini b{font-size:14px;color:var(--ink);display:block;line-height:1.3}
.related-mini span{font-size:12px;color:var(--muted)}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .case-grid{grid-template-columns:repeat(3,1fr)}
  .brand-grid{grid-template-columns:repeat(3,1fr)}
  .trust-in{grid-template-columns:repeat(3,1fr)}
  .trust .s:nth-child(3){border-right:0}
  .trust .s:nth-child(4),.trust .s:nth-child(5){border-top:1px solid var(--line)}
  .detail-grid{grid-template-columns:1fr}
}
@media(max-width:820px){
  .nav-links,.langs,.nav-cta{display:none}
  .burger{display:block}
  .nav-links.open{display:flex;position:absolute;top:70px;left:0;right:0;background:#fff;
    flex-direction:column;padding:14px 20px;box-shadow:var(--shadow);gap:2px}
  .nav-links.open a{padding:13px}
  .pain-grid,.why-grid,.mode-grid,.testi-grid,.leed-grid,.lead-grid,.policy-band{grid-template-columns:1fr}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .case-summary{grid-template-columns:repeat(2,1fr)}
  section{padding:48px 0}
}
@media(max-width:520px){
  .case-grid,.brand-grid,.trust-in,.foot-grid,.calc-out,.leed-points{grid-template-columns:1fr}
  .trust .s{border-right:0;border-bottom:1px solid var(--line)}
  .wrap{padding:0 16px}
  .hero{padding:56px 0 64px}
}