/*
Theme Name: CCF Packaging
Theme URI: https://www.ccfpackaging.com/
Author: CCF Packaging
Description: B2B packaging site theme — product-first, inquiry-driven.
Version: 1.0.0
Text Domain: ccf
*/

:root{
  --ink:#1c1b19;
  --ink-2:#4a463f;
  --muted:#6b6459;
  --line:#e2ddd3;
  --paper:#faf8f4;
  --white:#fff;
  --gold:#6e5526;
  --gold-soft:#f2ece1;
  --radius:2px;
  --wrap:1200px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --serif:Georgia,"Times New Roman",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--ink);font:16px/1.65 var(--font)}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--gold)}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.25;font-weight:600;letter-spacing:-.01em}
h1{font-family:var(--serif);font-size:clamp(28px,4vw,44px);font-weight:400}
h2{font-size:clamp(22px,2.6vw,30px)}
h3{font-size:19px}
p{margin:0 0 1em}
small{font-size:13px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
.lead{font-size:18px;color:var(--ink-2)}
.muted{color:var(--muted)}
.center{text-align:center}

/* header */
.site-head{border-bottom:1px solid var(--line);background:var(--white);position:sticky;top:0;z-index:50}
.head-in{display:flex;align-items:center;gap:22px;height:70px}
.brand{font-family:var(--serif);font-size:22px;letter-spacing:.02em;white-space:nowrap}
.brand span{display:block;font-family:var(--font);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.nav{margin-left:auto;display:flex;gap:20px;font-size:14px}
.nav a{color:var(--ink-2)}
.head-cta{display:flex;gap:10px;align-items:center}
.btn{display:inline-block;padding:11px 20px;border:1px solid var(--ink);background:var(--ink);color:#fff;font-size:14px;line-height:1;border-radius:var(--radius);transition:.15s}
.btn:hover{background:var(--gold);border-color:var(--gold);color:#fff}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.btn.big{padding:15px 26px;font-size:15px}
.burger{display:none}

/* hero */
.hero{background:var(--paper);border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:64px 0}
.hero h1{margin-bottom:18px}
.hero .lead{max-width:46ch}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:26px}
.chip{font-size:12.5px;letter-spacing:.02em;padding:6px 11px;border:1px solid var(--line);background:var(--white);color:var(--ink-2);border-radius:var(--radius);white-space:nowrap}
.hero-media img{width:100%;aspect-ratio:4/5;object-fit:cover;border:1px solid var(--line)}
.hero-media .ph{aspect-ratio:4/5;border:1px solid var(--line);background:var(--gold-soft);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px}

/* section */
.sec{padding:64px 0}
.sec.alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head p{margin:0;max-width:60ch;color:var(--muted)}

/* cards */
.grid{display:grid;gap:20px}
.g-cat{grid-template-columns:repeat(4,1fr)}
.g-prod{grid-template-columns:repeat(4,1fr)}
.cat-card{border:1px solid var(--line);background:var(--white);padding:22px;border-radius:var(--radius);transition:.15s}
.cat-card:hover{border-color:var(--ink)}
.cat-card h3{margin-bottom:6px;font-size:17px}
.cat-card .cnt{font-size:12.5px;color:var(--muted)}
.prod-card{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.prod-card .thumb{aspect-ratio:1/1;background:var(--paper);overflow:hidden}
.prod-card .thumb img{width:100%;height:100%;object-fit:cover}
.prod-card .bd{padding:14px 16px 18px}
.prod-card h3{font-size:15px;line-height:1.4;margin:0 0 6px}
.prod-card .meta{font-size:12.5px;color:var(--muted);display:flex;gap:10px;flex-wrap:wrap}
.prod-card:hover{border-color:var(--ink)}

/* product single */
.pdp{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;padding:40px 0 64px}
.gal-main{border:1px solid var(--line);aspect-ratio:1/1;background:var(--paper)}
.gal-main img{width:100%;height:100%;object-fit:contain}
.gal-thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:8px}
.gal-thumbs button{padding:0;border:1px solid var(--line);background:none;cursor:pointer;aspect-ratio:1/1;overflow:hidden}
.gal-thumbs button.on{border-color:var(--ink)}
.gal-thumbs img{width:100%;height:100%;object-fit:cover}
.specs{width:100%;border-collapse:collapse;margin:18px 0 22px;font-size:14.5px}
.specs th,.specs td{border-bottom:1px solid var(--line);padding:9px 0;text-align:left;vertical-align:top}
.specs th{width:38%;color:var(--muted);font-weight:500}
.pdp .cta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.crumbs{font-size:13px;color:var(--muted);padding:16px 0}
.crumbs a{color:var(--muted)}
.crumbs .sep{margin:0 6px;opacity:.5}

/* forms */
.rfq{border:1px solid var(--line);background:var(--paper);padding:26px;border-radius:var(--radius);margin-top:22px}
.rfq h3{margin-bottom:4px}
.f-row{margin-bottom:14px}
.f-row label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:5px}
.f-row .req{color:#a33}
input[type=text],input[type=email],select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);background:#fff;font:inherit;font-size:14.5px;border-radius:var(--radius)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--gold-soft);border-color:var(--gold)}
.f-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.note{font-size:12.5px;color:var(--muted);margin-top:10px}
.ok{border:1px solid #cddcc9;background:#f2f8f0;padding:14px 16px;margin-bottom:18px;font-size:14.5px}
.err{border:1px solid #e2c9c9;background:#fbf1f1;padding:14px 16px;margin-bottom:18px;font-size:14.5px}

/* misc */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{border-top:2px solid var(--ink);padding-top:14px}
.step .n{font-size:12px;letter-spacing:.12em;color:var(--muted)}
.notice{border:1px solid var(--line);background:var(--paper);padding:18px 20px;font-size:14.5px;color:var(--ink-2);border-radius:var(--radius)}
.site-foot{border-top:1px solid var(--line);background:var(--paper);padding:52px 0 28px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.site-foot h4{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{margin-bottom:8px}
.site-foot a{color:var(--ink-2)}
.foot-bar{margin-top:36px;padding-top:18px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* 手机端 */
@media (max-width:1024px){
  .g-cat,.g-prod{grid-template-columns:repeat(3,1fr)}
  .hero-in,.pdp{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .head-in{height:60px;gap:12px}
  .nav,.head-cta .btn.ghost{display:none}
  .burger{display:inline-flex;margin-left:auto;border:1px solid var(--line);background:#fff;padding:8px 10px;border-radius:2px}
  .site-head.open .nav{display:flex;position:absolute;top:60px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;padding:14px 20px;gap:12px}
  .g-cat,.g-prod{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr 1fr}
  .sec{padding:44px 0}
  .hero-in{padding:40px 0}
  .f-2{grid-template-columns:1fr}
  .gal-thumbs{grid-template-columns:repeat(4,1fr)}
  .foot-grid{grid-template-columns:1fr}
  .sticky-wa{position:fixed;left:14px;right:14px;bottom:14px;z-index:60}
  .sticky-wa a{display:block;text-align:center;padding:13px;background:var(--ink);color:#fff;border-radius:3px;font-size:15px}
}

/* About 实拍条 */
.about-shots{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:34px 0 10px}
.about-shots figure{margin:0}
.about-shots img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}
.about-shots figcaption{font-size:12.5px;color:var(--muted);padding-top:8px;line-height:1.45}
@media (max-width:720px){.about-shots{grid-template-columns:1fr}}