/* ==========================================================================
   PaperCraft Packaging — Landing Page
   Theme: Premium  |  Dark ink + muted gold
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --ink:        #F3F7F1;
  --ink-2:      #E9F0E7;
  --panel:      #FFFFFF;
  --panel-2:    #F7FAF5;
  --line:       rgba(23,42,30,.13);
  --line-soft:  rgba(23,42,30,.075);

  --gold:       #2E7D52;
  --gold-lt:    #1E5C3B;
  --gold-dk:    #57A377;
  --gold-glow:  rgba(46,125,82,.16);

  --kraft:      #C08A4E;
  --kraft-lt:   #DCB183;

  --text:       #182720;
  --text-2:     #4A5C50;
  --text-3:     #6E7F73;

  --serif: "Manrope", "Inter", -apple-system, "Segoe UI", Arial, sans-serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;

  --wrap: 1240px;
  --r-sm: 4px;
  --r:    8px;
  --r-lg: 14px;

  --ease: cubic-bezier(.22,.61,.36,1);
  --shadow: 0 24px 60px -24px rgba(23,42,30,.4);
}

/* ---------- 2. Reset & base ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
section[id]{ scroll-margin-top:90px; }
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.7;
  font-weight:300;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
/* film grain */
body::before{
  content:"";
  position:fixed; inset:0; z-index:9999; pointer-events:none; opacity:.032;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
}
img,svg{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button,input,select,textarea{ font:inherit; color:inherit; }
h1,h2,h3,h4{ margin:0; font-family:var(--serif); font-weight:600; line-height:1.15; letter-spacing:-.022em; }
p{ margin:0 0 1em; }
::selection{ background:var(--gold); color:#F3F7F1; }

/* scrollbar */
::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background:var(--ink-2); }
::-webkit-scrollbar-thumb{ background:#B9C9BC; border-radius:10px; border:2px solid var(--ink-2); }
::-webkit-scrollbar-thumb:hover{ background:var(--gold-dk); }

/* ---------- 3. Layout ---------- */
.wrap{ width:100%; max-width:var(--wrap); margin:0 auto; padding:0 28px; }
.section{ padding:120px 0; position:relative; }
.section--tight{ padding:86px 0; }
.section--alt{
  background:
    radial-gradient(ellipse 72% 46% at 50% 0%, rgba(46,125,82,.062), transparent 68%),
    linear-gradient(180deg,#EBF2EA,#EFF5EE 52%,#EBF2EA);
}
.section--plain{ background:var(--panel); }

.eyebrow{
  display:inline-flex; align-items:center; gap:12px;
  font-size:11px; font-weight:500; letter-spacing:.3em; text-transform:uppercase;
  color:var(--gold); margin-bottom:22px;
}
.eyebrow::before{
  content:""; width:34px; height:1px; background:linear-gradient(90deg,transparent,var(--gold));
}
.eyebrow--center::after{
  content:""; width:34px; height:1px; background:linear-gradient(270deg,transparent,var(--gold));
}

.sec-title{ font-size:clamp(29px,3.8vw,46px); }
.sec-title em{ font-style:normal; color:var(--gold-lt); }
.sec-sub{ color:var(--text-2); max-width:620px; margin-top:18px; font-size:15.5px; }

.head{ max-width:760px; margin-bottom:64px; }
.head--center{ margin-left:auto; margin-right:auto; text-align:center; }
.head--center .sec-sub{ margin-left:auto; margin-right:auto; }

.rule{ height:1px; background:linear-gradient(90deg,transparent,var(--line),transparent); }

/* ---------- 4. Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:15px 30px; border:1px solid transparent; border-radius:var(--r-sm);
  font-size:12.5px; font-weight:500; letter-spacing:.14em; text-transform:uppercase;
  cursor:pointer; transition:all .35s var(--ease); white-space:nowrap; position:relative;
}
.btn--gold{
  background:linear-gradient(135deg,var(--gold-lt),var(--gold) 45%,var(--gold-dk));
  color:#F3F7F1; box-shadow:0 10px 30px -12px var(--gold-glow);
}
.btn--gold:hover{ transform:translateY(-2px); box-shadow:0 18px 40px -12px rgba(46,125,82,.42); }
.btn--ghost{ border-color:rgba(255,255,255,.2); color:var(--text); }
.btn--ghost:hover{ border-color:var(--gold); color:var(--gold-lt); background:rgba(46,125,82,.06); }
.btn--block{ width:100%; }
.btn svg{ width:15px; height:15px; }

.link-arrow{
  display:inline-flex; align-items:center; gap:10px; color:var(--gold-lt);
  font-size:12.5px; letter-spacing:.14em; text-transform:uppercase; font-weight:500;
}
.link-arrow svg{ width:14px; transition:transform .35s var(--ease); }
.link-arrow:hover svg{ transform:translateX(5px); }

/* ---------- 5. Topbar ---------- */
.topbar{
  background:#142A1E; border-bottom:1px solid var(--line-soft);
  font-size:12px; color:var(--text-3); letter-spacing:.04em;
}
.topbar .wrap{ display:flex; align-items:center; justify-content:space-between; min-height:40px; gap:20px; }
.topbar-l{ display:flex; gap:26px; flex-wrap:wrap; }
.topbar-l a:hover{ color:var(--gold-lt); }
.topbar-r{ display:flex; align-items:center; gap:9px; color:var(--gold); letter-spacing:.16em; text-transform:uppercase; font-size:10.5px; }
.dot{ width:5px; height:5px; border-radius:50%; background:var(--gold); box-shadow:0 0 0 3px rgba(46,125,82,.16); }
@media(max-width:820px){ .topbar-l{ display:none; } .topbar .wrap{ justify-content:center; } }

/* ---------- 6. Header ---------- */
.header{
  position:sticky; top:0; z-index:900;
  background:rgba(243,247,241,.8); backdrop-filter:blur(16px);
  border-bottom:1px solid transparent; transition:all .4s var(--ease);
}
.header.is-stuck{ background:rgba(243,247,241,.95); border-bottom-color:var(--line); box-shadow:0 10px 40px -20px rgba(23,42,30,.3); }
.nav{ display:flex; align-items:center; justify-content:space-between; min-height:76px; gap:24px; }

.brand{ display:flex; align-items:center; gap:13px; flex-shrink:0; }
.brand-logo{ height:28px; width:auto; display:block; flex-shrink:0; }
.brand-txt{ display:flex; flex-direction:column; line-height:1; }
.brand-txt span{ font-size:8.5px; letter-spacing:.34em; color:var(--gold); text-transform:uppercase; margin-top:2px; }

.nav-links{ display:flex; align-items:center; gap:34px; }
.nav-links a{
  font-size:12.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--text-2);
  position:relative; padding:6px 0; transition:color .3s;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; width:0; height:1px;
  background:var(--gold); transition:width .35s var(--ease);
}
.nav-links a:hover, .nav-links a.active{ color:var(--text); }
.nav-links a:hover::after, .nav-links a.active::after{ width:100%; }
.nav-cta{ display:flex; align-items:center; gap:16px; }

.burger{
  display:none; width:44px; height:44px; border:1px solid rgba(255,255,255,.22); background:none;
  border-radius:var(--r-sm); cursor:pointer; flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.burger span{ width:19px; height:2px; background:var(--text); border-radius:2px; transition:.3s var(--ease); }
.burger:hover{ border-color:var(--gold); }
.burger.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2){ opacity:0; }
.burger.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

@media(max-width:1080px){
  .nav-links{
    position:fixed; inset:76px 0 auto 0; flex-direction:column; align-items:flex-start;
    gap:0; background:rgba(243,247,241,.985); backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line); padding:10px 28px 26px;
    transform:translateY(-130%); transition:transform .45s var(--ease); max-height:calc(100vh - 76px); overflow:auto;
  }
  .nav-links.open{ transform:translateY(0); }
  .nav-links a{ width:100%; padding:17px 0; border-bottom:1px solid var(--line-soft); font-size:14px; }
  .burger{ display:flex; }
  .nav-cta .btn{ display:none; }
}

/* ---------- 7. Hero ---------- */
.hero{ position:relative; overflow:hidden; padding:96px 0 0; }
.hero::before{
  content:""; position:absolute; top:-220px; right:-160px; width:820px; height:820px;
  background:radial-gradient(circle,rgba(46,125,82,.15),transparent 62%);
  pointer-events:none;
}
/* 背景网格已按 Jill 要求移除（2026-09-16） */
.hero .wrap{ position:relative; z-index:2; }
.hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }

.hero h1{ font-size:clamp(30px,3.6vw,44px); letter-spacing:-.02em; font-weight:600; opacity:.92; }
.hero h1 em{ font-style:normal; color:var(--gold-lt); display:block; }
.hero-sub{ color:var(--text-2); font-size:16.5px; max-width:520px; margin:26px 0 38px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:44px; }

.hero-points{ display:flex; gap:28px; flex-wrap:wrap; padding-top:26px; border-top:1px solid var(--line); }
.hero-points div{ font-size:12.5px; color:var(--text-3); display:flex; align-items:center; gap:9px; letter-spacing:.04em; }
.hero-points svg{ width:13px; height:13px; color:var(--gold); flex-shrink:0; }

/* hero art */
.hero-art{ position:relative; display:flex; align-items:flex-end; justify-content:center; min-height:360px; }
.hero-art::before{
  content:""; position:absolute; bottom:26px; left:50%; transform:translateX(-50%);
  width:78%; height:1px; background:linear-gradient(90deg,transparent,rgba(46,125,82,.5),transparent);
}
.hero-art::after{
  content:""; position:absolute; bottom:0; left:50%; transform:translateX(-50%);
  width:60%; height:60px; background:radial-gradient(ellipse at center,rgba(46,125,82,.16),transparent 70%);
}
.hero-art .ph{
  margin:0; background:none; border-radius:0; padding:0; position:relative;
  box-shadow:none;
}
.hero-art .ph img{ display:block; width:100%; height:auto; filter:drop-shadow(0 26px 28px rgba(23,42,30,.18)); }
.hero-art .ph--main{ width:min(560px,88%); z-index:2; }
@keyframes float{ 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(-13px); } }

/* stats */
.stats{ margin-top:74px; border-top:1px solid var(--line); display:grid; grid-template-columns:repeat(4,1fr); }
.stat{ padding:34px 22px; border-right:1px solid var(--line); }
.stat:last-child{ border-right:0; }
.stat b{ display:block; font-family:var(--serif); font-size:40px; font-weight:600; color:var(--gold-lt); line-height:1; }
.stat > span{ display:block; font-size:11.5px; letter-spacing:.16em; text-transform:uppercase; color:var(--text-3); margin-top:11px; }
@media(max-width:900px){
  .hero-grid{ grid-template-columns:1fr; gap:34px; }
  .hero-art{ order:-1; min-height:240px; }
  .hero-art .ph--main{ width:min(400px,86%); }
  .stats{ grid-template-columns:repeat(2,1fr); }
  .stat{ border-bottom:1px solid var(--line); }
  .stat:nth-child(2n){ border-right:0; }
}

/* ---------- 8. Marquee ---------- */
.marquee{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:#142A1E; overflow:hidden; padding:22px 0; }
.marquee-track{ display:flex; gap:70px; width:max-content; animation:scroll 38s linear infinite; }
.marquee:hover .marquee-track{ animation-play-state:paused; }
.marquee-track span{
  font-family:var(--serif); font-size:19px; color:var(--text-3); letter-spacing:.06em;
  display:flex; align-items:center; gap:70px; white-space:nowrap;
}
.marquee-track span::after{ content:"◆"; font-size:7px; color:var(--gold-dk); }
@keyframes scroll{ to{ transform:translateX(-50%); } }

/* ---------- 9. Products ---------- */
.tabs{ display:flex; gap:8px; flex-wrap:wrap; border-bottom:1px solid var(--line); margin-bottom:52px; }
.tab{
  background:none; border:0; border-bottom:1px solid transparent; margin-bottom:-1px;
  padding:16px 22px; cursor:pointer; font-size:12.5px; letter-spacing:.13em;
  text-transform:uppercase; color:var(--text-3); transition:all .3s var(--ease); position:relative;
}
.tab:hover{ color:var(--text-2); }
.tab.active{ color:var(--gold-lt); border-bottom-color:var(--gold); }
.tab i{ font-style:normal; font-family:var(--serif); font-size:11px; color:var(--gold-dk); margin-right:9px; }

.panel{ display:none; animation:fade .5s var(--ease); }
.panel.active{ display:block; }
@keyframes fade{ from{ opacity:0; transform:translateY(14px); } to{ opacity:1; transform:none; } }
.panel-grid{ display:grid; grid-template-columns:.92fr 1.08fr; gap:64px; align-items:center; }

.pv{
  position:relative; background:linear-gradient(160deg,var(--panel-2),#EAF2E9);
  border:1px solid var(--line); border-radius:var(--r-lg); padding:52px 34px 34px;
  display:flex; align-items:center; justify-content:center; min-height:430px; overflow:hidden;
}
.pv::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(circle at 50% 118%,rgba(46,125,82,.16),transparent 58%);
}
.pv::after{
  content:""; position:absolute; top:24px; left:24px; right:24px; bottom:24px;
  border:1px solid var(--line-soft); border-radius:var(--r); pointer-events:none;
}
.pv img{
  position:relative; z-index:2; width:92%; max-width:352px; height:auto; display:block;
  background:#FFFFFF; padding:13px; border-radius:15px;
  box-shadow:0 30px 64px rgba(23,42,30,.3), 0 0 0 1px rgba(46,125,82,.26);
}
.pv--wide img{ max-width:384px; }
@media(max-width:940px){ .pv--wide img{ max-width:322px; } }
.pv-tag{
  position:absolute; top:24px; left:44px; z-index:3;
  font-size:10px; letter-spacing:.26em; text-transform:uppercase; color:var(--gold);
}

.p-title{ font-size:clamp(26px,3.2vw,38px); margin-bottom:6px; }
.p-code{ font-size:11px; letter-spacing:.26em; text-transform:uppercase; color:var(--gold-dk); margin-bottom:20px; }
.p-desc{ color:var(--text-2); font-size:15px; margin-bottom:28px; }

.spec{ width:100%; border-collapse:collapse; margin-bottom:28px; }
.spec tr{ border-bottom:1px solid var(--line-soft); }
.spec td{ padding:13px 0; font-size:13.5px; vertical-align:top; }
.spec td:first-child{ color:var(--text-3); width:150px; letter-spacing:.06em; font-size:12px; text-transform:uppercase; }
.spec td:last-child{ color:var(--text); }

.chips{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:32px; }
.chip{
  font-size:11.5px; letter-spacing:.08em; padding:7px 14px; border:1px solid var(--line);
  border-radius:100px; color:var(--text-2); background:rgba(255,255,255,.02);
}
@media(max-width:940px){ .panel-grid{ grid-template-columns:1fr; gap:38px; } .pv{ min-height:330px; } }

/* ---------- 10. Materials / finishes ---------- */
.mat-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.mat{ background:var(--ink-2); padding:34px 26px; transition:background .4s var(--ease); }
.mat:hover{ background:var(--panel-2); }
.mat-ico{ width:34px; height:34px; color:var(--gold); margin-bottom:22px; }
.mat h3{ font-size:21px; margin-bottom:10px; }
.mat p{ font-size:14px; color:var(--text-2); margin:0 0 16px; }
.mat ul{ list-style:none; margin:0; padding:0; }
.mat li{ font-size:13px; color:var(--text-3); padding:6px 0 6px 18px; position:relative; }
.mat li::before{ content:""; position:absolute; left:0; top:14px; width:7px; height:1px; background:var(--gold-dk); }
@media(max-width:900px){ .mat-grid{ grid-template-columns:1fr 1fr; } }
@media(max-width:620px){ .mat-grid{ grid-template-columns:1fr; } }

.finish-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-top:56px; }
.finish{
  border:1px solid var(--line); border-radius:var(--r); padding:24px 22px;
  background:linear-gradient(180deg,rgba(255,255,255,.028),transparent);
  transition:.4s var(--ease);
}
.finish:hover{ border-color:rgba(46,125,82,.4); transform:translateY(-4px); }
.finish b{ display:block; font-size:14px; font-weight:500; margin-bottom:7px; }
.finish span{ font-size:12.5px; color:var(--text-3); line-height:1.6; }
@media(max-width:980px){ .finish-grid{ grid-template-columns:1fr 1fr; } }
@media(max-width:520px){ .finish-grid{ grid-template-columns:1fr; } }

/* ---------- 11. Process ---------- */
.steps{ display:grid; grid-template-columns:repeat(5,1fr); gap:0; position:relative; }
.steps::before{
  content:""; position:absolute; top:23px; left:0; right:0; height:1px;
  background:linear-gradient(90deg,transparent,var(--line) 8%,var(--line) 92%,transparent);
}
.step{ padding:0 18px 0 0; position:relative; }
.step-n{
  width:47px; height:47px; border-radius:50%; border:1px solid var(--line);
  background:var(--ink-2); display:flex; align-items:center; justify-content:center;
  font-family:var(--serif); font-size:17px; color:var(--gold); margin-bottom:26px; position:relative; z-index:2;
}
.step:first-child .step-n{ background:linear-gradient(135deg,var(--gold-lt),var(--gold-dk)); color:#F3F7F1; border-color:transparent; }
.step h4{ font-size:17.5px; margin-bottom:9px; }
.step p{ font-size:13.2px; color:var(--text-3); margin:0; }
.step-d{ font-size:10.5px; letter-spacing:.2em; text-transform:uppercase; color:var(--gold-dk); margin-bottom:12px; }
@media(max-width:980px){ .steps{ grid-template-columns:1fr 1fr; gap:34px 0; } .steps::before{ display:none; } .step{ padding-right:26px; } }
@media(max-width:560px){ .steps{ grid-template-columns:1fr; } }

/* ---------- 12. Why us ---------- */
.why-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.why{
  border:1px solid rgba(255,255,255,.135); border-radius:var(--r-lg); padding:36px 32px;
  background:linear-gradient(165deg,rgba(255,255,255,.072),rgba(255,255,255,.022) 62%);
  transition:.45s var(--ease); position:relative; overflow:hidden;
  box-shadow:0 22px 50px -34px rgba(23,42,30,.5);
}
.why::after{
  content:""; position:absolute; top:0; left:0; width:100%; height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  transform:scaleX(0); transition:transform .5s var(--ease);
}
.why:hover{
  border-color:rgba(46,125,82,.4); transform:translateY(-6px);
  background:linear-gradient(165deg,rgba(255,255,255,.1),rgba(255,255,255,.032) 62%);
  box-shadow:0 34px 64px -34px rgba(23,42,30,.3), 0 0 44px -26px var(--gold-glow);
}
.why:hover::after{ transform:scaleX(1); }
.why-ico{ width:30px; height:30px; color:var(--gold); margin-bottom:24px; }
.why h3{ font-size:20px; margin-bottom:11px; }
.why p{ font-size:14px; color:var(--text-2); margin:0; }
@media(max-width:900px){ .why-grid{ grid-template-columns:1fr; } }

/* ---------- 12b. Manufacturing strength ---------- */
.mfg{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--line); border:1px solid var(--line); border-radius:var(--r-lg);
  overflow:hidden; margin-bottom:30px;
}
.mfg-item{ background:var(--panel); padding:36px 26px; text-align:center; transition:.45s var(--ease); }
.mfg-item:hover{ background:var(--panel-2); }
.mfg-item b{
  display:block; font-family:var(--serif); font-size:clamp(30px,3.1vw,40px);
  font-weight:600; color:var(--gold-lt); line-height:1; letter-spacing:-.015em;
}
.mfg-item span{
  display:block; font-size:11px; letter-spacing:.15em; text-transform:uppercase;
  color:var(--text-3); margin-top:13px;
}
.mfg-note{
  text-align:center; font-size:12.5px; color:var(--text-3); margin:0 0 30px;
  letter-spacing:.02em;
}
@media(max-width:760px){
  .mfg{ grid-template-columns:1fr; margin-bottom:24px; }
  .mfg-item{ padding:26px 20px; }
}

/* ---------- 13. Certifications ---------- */
.certs{ display:flex; flex-wrap:wrap; gap:14px; }
.cert{
  flex:1 1 150px; border:1px solid var(--line); border-radius:var(--r); padding:26px 18px;
  text-align:center; background:rgba(255,255,255,.018); transition:.4s var(--ease);
}
.cert:hover{ border-color:rgba(46,125,82,.4); background:rgba(46,125,82,.05); }
.cert b{ display:block; font-family:var(--serif); font-size:19px; color:var(--gold-lt); letter-spacing:.04em; }
.cert span{ display:block; font-size:10.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--text-3); margin-top:8px; }
.certs-note{
  text-align:center; font-size:12.5px; color:var(--text-3); margin:26px 0 0; letter-spacing:.02em;
}

/* ---------- 14. FAQ ---------- */
.faq-grid{ display:grid; grid-template-columns:.82fr 1.18fr; gap:60px; align-items:start; }
.faq-side{ position:sticky; top:104px; }
.faq-side .head{ margin-bottom:34px; }
.faq-side .sec-title{ font-size:clamp(26px,2.9vw,36px); }

.faq-cta{
  border:1px solid rgba(46,125,82,.3); border-radius:var(--r-lg);
  padding:32px 30px; position:relative; overflow:hidden;
  background:linear-gradient(160deg,rgba(46,125,82,.105),rgba(46,125,82,.026) 72%);
}
.faq-cta::before{
  content:""; position:absolute; top:-70px; right:-60px; width:200px; height:200px;
  background:radial-gradient(circle,rgba(46,125,82,.22),transparent 68%); pointer-events:none;
}
.faq-cta h3{ font-size:23px; margin-bottom:11px; position:relative; }
.faq-cta p{ font-size:13.8px; color:var(--text-2); margin:0 0 22px; position:relative; }
.faq-cta .link-arrow{ position:relative; }

.faq{ border-top:1px solid var(--line); }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; background:none; border:0; cursor:pointer; text-align:left;
  padding:28px 44px 28px 0; font-size:17px; font-family:var(--serif); font-weight:600;
  color:var(--text); position:relative; transition:color .3s; line-height:1.4;
}
.faq-q:hover{ color:var(--gold-lt); }
.faq-q::after{
  content:""; position:absolute; right:8px; top:50%; width:11px; height:11px;
  border-right:1px solid var(--gold); border-bottom:1px solid var(--gold);
  transform:translateY(-70%) rotate(45deg); transition:transform .4s var(--ease);
}
.faq-item.open .faq-q::after{ transform:translateY(-25%) rotate(-135deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .5s var(--ease); }
.faq-a p{ font-size:14.5px; color:var(--text-2); padding:0 44px 30px 0; margin:0; }
.faq-item.open .faq-a{ max-height:560px; }
@media(max-width:940px){
  .faq-grid{ grid-template-columns:1fr; gap:38px; }
  .faq-side{ position:static; }
  .faq-side .head{ margin-bottom:28px; }
  .faq-side .sec-title{ font-size:clamp(28px,5vw,42px); }
}
@media(max-width:560px){ .faq-a p{ padding-right:22px; } }

/* ---------- 15. Contact ---------- */
.contact-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:60px; }
.info-item{ display:flex; gap:18px; padding:22px 0; border-bottom:1px solid var(--line-soft); }
.info-item svg{ width:19px; height:19px; color:var(--gold); flex-shrink:0; margin-top:5px; }
.info-item b{ display:block; font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--text-3); margin-bottom:6px; font-weight:500; }
.info-item span{ font-size:15px; }
.info-item a:hover{ color:var(--gold-lt); }

.form{ background:var(--panel); border:1px solid var(--line); border-radius:var(--r-lg); padding:44px 40px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.field{ margin-bottom:18px; }
.field label{ display:block; font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--text-3); margin-bottom:9px; }
.field input,.field select,.field textarea{
  width:100%; background:rgba(255,255,255,.03); border:1px solid var(--line);
  border-radius:var(--r-sm); padding:14px 15px; font-size:14.5px; font-weight:300;
  transition:.3s var(--ease); outline:none;
}
.field textarea{ resize:vertical; min-height:118px; }
.field input::placeholder,.field textarea::placeholder{ color:#8AA091; }
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--gold); background:rgba(46,125,82,.05); box-shadow:0 0 0 3px rgba(46,125,82,.09);
}
.field select{ appearance:none; cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%232E7D52' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat:no-repeat; background-position:right 16px center; padding-right:40px;
}
.field select option{ background:var(--panel); color:var(--text); }
.field.err input,.field.err select,.field.err textarea{ border-color:#B4553F; }
.form-note{ font-size:12px; color:var(--text-3); margin:16px 0 0; }
.form-ok{
  display:none; margin-top:20px; padding:16px 20px; border:1px solid rgba(46,125,82,.42);
  border-radius:var(--r-sm); background:rgba(46,125,82,.08); color:var(--gold-lt); font-size:13.5px;
}
.form-ok.show{ display:block; animation:fade .45s var(--ease); }
@media(max-width:940px){ .contact-grid{ grid-template-columns:1fr; gap:40px; } .form{ padding:32px 24px; } }
@media(max-width:560px){ .form-row{ grid-template-columns:1fr; } }

/* ---------- 16. CTA band ---------- */
.band{
  position:relative; overflow:hidden; border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:linear-gradient(120deg,#142A1E,#1D3D2A 45%,#142A1E); padding:86px 0; text-align:center;
}
.band::before{
  content:""; position:absolute; top:-140px; left:50%; transform:translateX(-50%);
  width:700px; height:400px; background:radial-gradient(ellipse,rgba(46,125,82,.18),transparent 65%);
}
.band .wrap{ position:relative; z-index:2; }
.band h2{ font-size:clamp(28px,4vw,46px); margin-bottom:16px; }
.band p{ color:var(--text-2); max-width:560px; margin:0 auto 34px; }

/* ---------- 17. Footer ---------- */
.footer{ background:#142A1E; padding:80px 0 0; font-size:14px; }
.f-grid{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1.4fr; gap:48px; padding-bottom:56px; }
.f-col h4{ font-family:var(--sans); font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--text-3); font-weight:500; margin-bottom:22px; }
.f-col ul{ list-style:none; margin:0; padding:0; }
.f-col li{ margin-bottom:11px; }
.f-col a{ color:var(--text-2); font-size:13.5px; transition:color .3s; }
.f-col a:hover{ color:var(--gold-lt); }
.f-about p{ color:var(--text-3); font-size:13.5px; max-width:320px; margin:20px 0 0; }
.f-sub{ display:flex; gap:0; margin-top:18px; }
.f-sub input{
  flex:1; background:rgba(255,255,255,.03); border:1px solid var(--line); border-right:0;
  border-radius:var(--r-sm) 0 0 var(--r-sm); padding:13px 15px; font-size:13.5px; outline:none;
}
.f-sub input:focus{ border-color:var(--gold); }
.f-sub button{
  border:1px solid transparent; background:linear-gradient(135deg,var(--gold-lt),var(--gold-dk));
  color:#F3F7F1; padding:0 20px; cursor:pointer; border-radius:0 var(--r-sm) var(--r-sm) 0; transition:.3s;
}
.f-sub button:hover{ filter:brightness(1.12); }
.f-social{ display:flex; gap:12px; margin-top:24px; }
.f-social a{
  width:36px; height:36px; border:1px solid var(--line); border-radius:50%;
  display:flex; align-items:center; justify-content:center; transition:.35s var(--ease);
}
.f-social a:hover{ border-color:var(--gold); background:rgba(46,125,82,.1); }
.f-social svg{ width:15px; height:15px; color:var(--text-2); }
.f-social a:hover svg{ color:var(--gold-lt); }
.f-bot{
  border-top:1px solid var(--line-soft); padding:26px 0; display:flex;
  justify-content:space-between; gap:18px; flex-wrap:wrap; font-size:12.5px; color:var(--text-3);
}
.f-bot a:hover{ color:var(--gold-lt); }
@media(max-width:1000px){ .f-grid{ grid-template-columns:1fr 1fr; gap:40px; } }
@media(max-width:560px){ .f-grid{ grid-template-columns:1fr; } }

/* ---------- 18. Utilities ---------- */
.reveal{ opacity:0; transform:translateY(26px); transition:opacity .85s var(--ease),transform .85s var(--ease); }
.reveal.in{ opacity:1; transform:none; }

.totop{
  position:fixed; right:26px; bottom:26px; z-index:800; width:46px; height:46px;
  border:1px solid var(--line); background:rgba(20,42,30,.92); backdrop-filter:blur(10px);
  border-radius:50%; display:flex; align-items:center; justify-content:center; cursor:pointer;
  opacity:0; pointer-events:none; transition:.4s var(--ease);
}
.totop.show{ opacity:1; pointer-events:auto; }
.totop:hover{ border-color:var(--gold); background:rgba(46,125,82,.14); }
.totop svg{ width:15px; height:15px; color:var(--gold-lt); }

/* WhatsApp float */
.wa-float{
  position:fixed; right:26px; bottom:84px; z-index:801;
  width:52px; height:52px; border-radius:50%;
  background:#25D366; color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 26px -8px rgba(37,211,102,.55);
  transition:transform .35s var(--ease), box-shadow .35s var(--ease);
}
.wa-float svg{ width:28px; height:28px; }
.wa-float:hover{ transform:translateY(-4px) scale(1.05); box-shadow:0 16px 32px -8px rgba(37,211,102,.65); }
.wa-tip{
  position:absolute; right:62px; top:50%; transform:translateY(-50%) translateX(6px);
  background:rgba(20,42,30,.92); color:#fff; font-size:12.5px; letter-spacing:.02em;
  padding:7px 12px; border-radius:8px; white-space:nowrap;
  opacity:0; pointer-events:none; transition:.35s var(--ease);
}
.wa-float:hover .wa-tip{ opacity:1; transform:translateY(-50%) translateX(0); }
@media(max-width:640px){ .wa-float{ right:18px; bottom:78px; width:48px; height:48px; } .wa-float svg{ width:26px; height:26px; } .wa-tip{ display:none; } }

@media(prefers-reduced-motion:reduce){
  *{ animation:none !important; transition-duration:.01ms !important; }
  .reveal{ opacity:1; transform:none; }
}
@media(max-width:640px){
  .section{ padding:80px 0; }
  .wrap{ padding:0 20px; }
  .head{ margin-bottom:44px; }
}

/* ===== Light-green theme adaptation ===== */
.topbar{ color:#9FB6A6; }
.topbar-l a:hover{ color:#CFE4D4; }
.topbar-r{ color:#7FBF9A; }
.dot{ background:#7FBF9A; box-shadow:0 0 0 3px rgba(127,191,154,.22); }
.btn--ghost{ border-color:rgba(23,42,30,.28); }
.btn--ghost:hover{ border-color:var(--gold); color:var(--gold-lt); background:rgba(46,125,82,.06); }
.hero-art .ph{ background:none; box-shadow:none; }
/* --- 产品图：白底融入浅绿背景 --- */
.pv{ background:#F1F7F0; }
.pv img{ width:88%; max-width:340px; background:none; padding:0; border-radius:0;
  box-shadow:none; mix-blend-mode:multiply; }
.pv::before{ background:radial-gradient(circle at 50% 118%,rgba(46,125,82,.14),transparent 58%); }
.pv::after{ inset:0; border:0; z-index:3;
  background:radial-gradient(ellipse 66% 66% at 50% 50%, transparent 62%, rgba(241,247,240,.55) 85%, rgba(241,247,240,.95) 97%); }
.marquee-track span{ color:#8FA898; }
.marquee-track span::after{ color:#4E8763; }
.why{ border-color:rgba(23,42,30,.11); background:linear-gradient(165deg,rgba(255,255,255,.92),rgba(255,255,255,.45) 62%); box-shadow:0 22px 50px -34px rgba(23,42,30,.4); }
.why:hover{ background:linear-gradient(165deg,#FFFFFF,rgba(255,255,255,.6) 62%); box-shadow:0 34px 64px -34px rgba(23,42,30,.45), 0 0 44px -26px rgba(46,125,82,.35); }
.cert{ background:rgba(255,255,255,.6); }
.finish{ background:rgba(255,255,255,.55); }
.chip{ background:rgba(46,125,82,.055); }
.band{ color:#E8F1EA; }
.band p{ color:#B9CFC0; }
.footer{ background:#142A1E; color:#C7D8CB; }
.f-col h4{ color:#8FA898; }
.f-col a{ color:#B9CEC0; }
.f-col a:hover{ color:#7FBF9A; }
.f-about p{ color:#9DB4A4; }
.f-sub input{ background:rgba(255,255,255,.07); border-color:rgba(255,255,255,.16); color:#E8F1EA; }
.f-sub input::placeholder{ color:#7E967F; }
.f-sub button{ color:#F3F7F1; }
.f-social a{ border-color:rgba(255,255,255,.18); }
.f-social svg{ color:#B9CEC0; }
.f-bot{ color:#8FA898; border-top-color:rgba(255,255,255,.12); }
.field input,.field select,.field textarea{ background:rgba(23,42,30,.035); }
.form-ok{ border-color:rgba(46,125,82,.4); background:rgba(46,125,82,.08); color:#1E5C3B; }
.totop{ background:rgba(20,42,30,.92); border-color:rgba(255,255,255,.14); }
.totop svg{ color:#CFE4D4; }
.faq-cta{ border-color:rgba(46,125,82,.32); }

/* ===== 产品四宫格（2026-09-16 改版） ===== */
.pgrid{ display:grid; grid-template-columns:repeat(2,1fr); gap:28px; margin-top:54px; }
.pcard{
  background:var(--panel); border:1px solid var(--line); border-radius:var(--r-lg);
  overflow:hidden; display:flex; flex-direction:column; position:relative;
  transition:.45s var(--ease);
}
.pcard:hover{
  transform:translateY(-6px); border-color:rgba(46,125,82,.35);
  box-shadow:0 30px 60px -30px rgba(23,42,30,.45), 0 0 40px -24px rgba(46,125,82,.35);
}
.pcard-img{
  position:relative; background:#F1F7F0; padding:26px 26px 0; text-align:center;
  border-bottom:1px solid var(--line-soft);
}
.pcard-img img{
  width:min(320px,78%); height:auto; display:block; margin:0 auto -2px;
  mix-blend-mode:multiply;
}
.pcard-body{ padding:26px 30px 30px; display:flex; flex-direction:column; flex:1; }
.pcard-code{ margin:0 0 8px; font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--text-3); }
.pcard-body h3{ margin:0 0 10px; font-size:24px; }
.pcard-desc{ margin:0 0 18px; font-size:14.5px; line-height:1.65; color:var(--text-2); }
.pcard-specs{ list-style:none; margin:0 0 22px; padding:0; }
.pcard-specs li{
  display:flex; gap:14px; padding:9px 0; font-size:13.5px; color:var(--text-2);
  border-top:1px solid var(--line-soft); line-height:1.5;
}
.pcard-specs li span{
  flex:0 0 88px; font-size:10.5px; letter-spacing:.12em; text-transform:uppercase;
  color:var(--text-3); padding-top:2px;
}
.pcard-body .link-arrow{ margin-top:auto; align-self:flex-start; }
@media(max-width:940px){
  .pgrid{ grid-template-columns:1fr; gap:22px; margin-top:40px; }
}
.pcard-img .pv-tag{ left:auto; right:16px; top:16px; }

/* ===== 延伸品类窄卡（food-service & specialty bags）2026-09-17 ===== */
.sgrid-sub{
  display:flex; flex-wrap:wrap; align-items:baseline; gap:6px 18px;
  margin:50px 0 22px;
}
.sgrid-sub h3{
  margin:0; font-family:var(--serif); font-size:20px; font-weight:500;
  letter-spacing:-.01em; color:var(--text);
}
.sgrid-sub p{ margin:0; font-size:13.5px; color:var(--text-3); }
.sgrid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.scard{
  display:flex; gap:16px; align-items:center; background:var(--panel);
  border:1px solid var(--line); border-radius:var(--r-lg); padding:16px;
  position:relative; overflow:hidden; transition:.45s var(--ease);
}
.scard:hover{
  transform:translateY(-4px); border-color:rgba(46,125,82,.35);
  box-shadow:0 24px 48px -26px rgba(23,42,30,.4);
}
.scard-img{
  flex:0 0 96px; width:96px; height:96px; border-radius:var(--r);
  overflow:hidden; background:#F1F7F0;
}
.scard-img img{ width:100%; height:100%; object-fit:cover; display:block; }
.scard-body{ min-width:0; }
.scard-body h4{
  margin:0 0 5px; font-family:var(--serif); font-size:16.5px; font-weight:500;
  letter-spacing:-.005em;
}
.scard-body p{ margin:0 0 8px; font-size:12.5px; line-height:1.55; color:var(--text-2); }
.scard-body .link-arrow{ font-size:12.5px; }
@media(max-width:1000px){ .sgrid{ grid-template-columns:1fr 1fr; } }
@media(max-width:640px){ .sgrid{ grid-template-columns:1fr; } .scard-img{ flex-basis:84px; width:84px; height:84px; } }

/* ===== 通栏大图横幅（Muros 风格：满宽图片 + 白色标题块压图）2026-09-16 ===== */
.showband{
  position:relative; height:600px; overflow:hidden;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(180deg,#E3EEE2 0%,#D8E7D6 55%,#CFE0CE 100%);
}
.showband-imgs{
  position:absolute; left:0; right:0; top:-90px; bottom:-90px;
  will-change:transform;
}
/* 背景：工厂产线视频铺满（16:9 源，cover 裁切上下） */
.showband-imgs video{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover; object-position:center 40%; display:block;
}
.showband-imgs::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(227,238,226,.30) 0%, rgba(23,42,30,.24) 100%);
}
.showband-label{ position:relative; z-index:2; text-align:center; padding:0 20px; }
.showband-label h2{
  display:inline-block; background:#FFFFFF; color:#131F18;
  font-family:var(--serif); font-weight:700; text-transform:uppercase;
  letter-spacing:.008em; line-height:1.04;
  font-size:clamp(34px,5.4vw,68px);
  padding:14px 40px 18px; margin:0 0 28px;
  box-shadow:0 34px 70px -32px rgba(20,40,28,.5);
  opacity:0; transform:translateY(52px);
  transition:transform 1s var(--ease), opacity .8s var(--ease);
}
.showband-label p{
  margin:0; color:#FFFFFF; font-weight:600;
  text-shadow:0 2px 16px rgba(20,40,28,.75), 0 0 3px rgba(20,40,28,.5);
  font-size:clamp(12px,1.5vw,17px); letter-spacing:.18em; text-transform:uppercase;
  opacity:0; transform:translateY(20px);
  transition:transform .9s var(--ease) .3s, opacity .7s var(--ease) .3s;
}
.showband.in .showband-label h2{ opacity:1; transform:none; }
.showband.in .showband-label p{ opacity:1; transform:none; }
.showband--duo{ background:#142A1E; }
.showband-duo-img{
  position:absolute; left:0; right:0; top:-60px; bottom:-60px;
  will-change:transform;
}
.showband-duo-img video{
  width:100%; height:100%; object-fit:cover; display:block;
}
/* 轻微压暗 + 白纱，保证白色标题牌和副标题可读 */
.showband--duo::after{
  content:""; position:absolute; inset:0; z-index:1; pointer-events:none;
  background:linear-gradient(180deg, rgba(20,42,30,.30) 0%, rgba(20,42,30,.18) 45%, rgba(20,42,30,.38) 100%);
}
.showband--duo .showband-label{ z-index:2; }
.showband--duo .showband-label p{ color:#EAF3EC; }
@media(max-width:940px){
  .showband{ height:460px; }
  .showband-label h2{ padding:12px 22px 15px; }
  .showband-label p{ letter-spacing:.12em; }
}
@media(max-width:640px){
  .showband{ height:380px; }
  .showband-label p{ font-size:11px; }
}

/* ---------- Factory gallery ---------- */
.fac-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin:36px 0 0;
}
.fac-card{
  position:relative; margin:0; border-radius:var(--r-lg); overflow:hidden;
  border:1px solid var(--line); background:var(--panel); aspect-ratio:4/3;
}
.fac-card img{ width:100%; height:100%; object-fit:cover; }
.fac-card figcaption{
  position:absolute; left:0; right:0; bottom:0; padding:26px 16px 13px;
  font-family:var(--serif); font-size:13.5px; font-weight:600; letter-spacing:.01em;
  color:#F3F7F1;
  background:linear-gradient(to top, rgba(23,42,30,.80) 0%, rgba(23,42,30,.45) 55%, rgba(23,42,30,0) 100%);
}
.fac-note{ margin:20px 0 0; font-size:13.5px; color:var(--text-3); }
@media(max-width:900px){ .fac-grid{ grid-template-columns:repeat(2,1fr); gap:12px; } }
@media(max-width:560px){ .fac-grid{ grid-template-columns:1fr; } }