/* =========================================================
   天丰定制 · 设计系统
   概念：印刷工艺可视化（对位标记 / 刀版线 / 薄膜层）
   纸：冷调纸白  #F3F5F1  墨：深墨蓝 #16222E
   信号：橙红 #D4470B（价格 / 主行动 / 标记）
   ========================================================= */
:root{
  --ink:#16222E;
  --ink-2:#43515E;
  --ink-3:#596673;
  --paper:#F3F5F1;
  --white:#FFFFFF;
  --line:rgba(22,34,46,.14);
  --line-soft:rgba(22,34,46,.08);
  --accent:#D4470B;
  --accent-ink:#A63606;
  --accent-soft:rgba(212,71,11,.10);
  --amber:#FFD100; --cyan:#00A9E0; --magenta:#E5007F;
  --r-sm:10px; --r-md:18px;
  --ff-cn:"Noto Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --ff-num:"Oswald","Arial Narrow","DIN Alternate",sans-serif;
  --shadow-1:0 1px 0 rgba(22,34,46,.06),0 10px 30px -18px rgba(22,34,46,.25);
  --shadow-2:0 24px 60px -30px rgba(22,34,46,.35);
  --ease:cubic-bezier(.22,.68,0,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--paper);
  font-family:var(--ff-cn);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important}
}
img,svg{display:block;max-width:100%}
a{color:inherit}
button{font-family:inherit}
.skip{position:fixed;left:-999px;top:8px;z-index:200;background:var(--ink);color:#fff;padding:.5rem 1rem;border-radius:6px}
.skip:focus{left:8px}
.wrap{max-width:1180px;margin-inline:auto;padding-inline:clamp(20px,4vw,40px)}
.reg svg{width:20px;height:20px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;justify-content:center;
  border:1px solid transparent;border-radius:999px;cursor:pointer;text-decoration:none;
  font-weight:700;font-size:.95rem;line-height:1;padding:.85rem 1.5rem;
  transition:transform .18s var(--ease),background .18s,color .18s,border-color .18s,box-shadow .18s;
  -webkit-tap-highlight-color:transparent;
}
.btn:focus-visible,.cat-card:focus-visible,.nav-burger:focus-visible,.faq summary:focus-visible,
.sample:focus-visible,.dg-close:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-ink);transform:translateY(-1px)}
.btn-accent:active{transform:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost-dark:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-line{background:transparent;color:var(--accent);border-color:var(--accent)}
.btn-line:hover{background:var(--accent);color:#fff}
.btn-lg{font-size:1.05rem;padding:1rem 1.9rem}
.btn:hover .btn-arrow{margin-left:.2em}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(243,245,241,.86);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.header-in{display:flex;align-items:center;gap:1.5rem;height:68px}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;margin-right:auto}
.brand-mark svg{width:40px;height:40px}
.brand-name{font-weight:900;font-size:1.12rem;letter-spacing:.02em;display:flex;flex-direction:column;line-height:1.15}
.brand-name small{font-family:var(--ff-num);font-weight:500;font-size:.58rem;letter-spacing:.24em;color:var(--ink-3);margin-top:.15em}
.site-nav{display:flex;gap:1.6rem}
.site-nav a{text-decoration:none;color:var(--ink-2);font-weight:500;font-size:.95rem;position:relative;padding:.3rem 0}
.site-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:width .25s var(--ease)}
.site-nav a:hover{color:var(--ink)}
.site-nav a:hover::after{width:100%}
.header-cta{display:flex;align-items:center;gap:.9rem}
.nav-burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-burger span{width:20px;height:2px;background:var(--ink);transition:.25s var(--ease)}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(1.5rem,4vw,4rem);align-items:center;padding-top:clamp(2.5rem,6vw,5.5rem);padding-bottom:clamp(2.5rem,6vw,5rem)}
.hero-lead{display:flex;align-items:center;gap:.55rem;color:var(--accent);font-weight:700;font-size:.98rem;letter-spacing:.05em;margin:0 0 1.1rem}
.hero-lead .reg{color:var(--accent)}
h1{font-size:clamp(2.5rem,6vw,4.6rem);line-height:1.06;letter-spacing:-.01em;margin:0 0 1.2rem;font-weight:900}
h1 em{font-style:normal;color:var(--accent);position:relative;white-space:nowrap}
h1 em::after{content:"";position:absolute;left:0;right:0;bottom:.08em;height:.14em;background:repeating-linear-gradient(90deg,var(--accent) 0 6px,transparent 6px 12px);opacity:.35;pointer-events:none}
.hero-sub{max-width:34em;color:var(--ink-2);font-size:1.06rem;margin:0 0 1.8rem}
.hero-sub strong{color:var(--ink);font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:.9rem;margin-bottom:1.9rem}
.hero-points{display:flex;flex-wrap:wrap;gap:.5rem 1.6rem;list-style:none;margin:0;padding:0}
.hero-points li{display:flex;align-items:center;gap:.5rem;font-size:.92rem;color:var(--ink-3);font-weight:500}
.hero-points li::before{content:"";width:8px;height:8px;background:var(--amber);border:1.5px solid var(--ink);transform:rotate(45deg);flex:none}
/* 右测视觉 */
.hero-art{position:relative;min-height:380px}
.sheet{position:absolute;border-radius:16px;box-shadow:var(--shadow-2)}
.sheet svg{width:100%;height:100%}
.sheet-back{width:58%;left:2%;bottom:2%;transform:rotate(-4deg);background:#fff;padding:10px;border:1px solid var(--line)}
.sheet-front{width:62%;right:0;top:6%;transform:rotate(2deg);background:#fff;padding:10px;border:1px solid var(--line);animation:floatIn 1s var(--ease) both}
@keyframes floatIn{from{opacity:0;transform:rotate(2deg) translateY(24px)}to{opacity:1;transform:rotate(2deg) translateY(0)}}
.chip{position:absolute;background:var(--ink);color:#fff;font-size:.78rem;font-weight:700;padding:.35rem .8rem;border-radius:999px;box-shadow:var(--shadow-1);animation:floatIn .8s .25s var(--ease) both}
.chip-a{top:-12px;left:-8px;background:var(--accent)}
.chip-b{bottom:18%;right:-14px}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.03)}}
.chip::after{content:"";position:absolute;inset:-4px;border:1px dashed currentColor;border-radius:999px;opacity:.5}
.hero-cap{position:absolute;left:8%;bottom:-6px;font-size:.86rem;color:var(--ink-3);margin:0;background:var(--paper);padding:0 .4rem}
.hero-scrim{display:none}
@media (max-width:920px){
  .hero-in{grid-template-columns:1fr}
  .hero-art{min-height:340px;max-width:520px;margin:0 auto;width:100%}
}

/* ---------- 跑马灯 ---------- */
.marquee{background:var(--ink);color:#fff;overflow:hidden;padding:.8rem 0;border-block:1px solid rgba(255,255,255,.08)}
.marquee-track{display:flex;gap:1.8rem;white-space:nowrap;width:max-content;animation:scrollX 30s linear infinite}
@keyframes scrollX{to{transform:translateX(-50%)}}
.marquee span{font-size:.95rem;font-weight:500;letter-spacing:.08em}
.dotm{width:6px;height:6px;background:var(--accent);transform:rotate(45deg);flex:none;margin:auto 0}

/* ---------- 区块通用 ---------- */
.section{padding:clamp(3.5rem,8vw,6.5rem) 0}
.section-tint{background:#E9EDE8;border-block:1px solid var(--line-soft)}
.sec-head{margin-bottom:clamp(2rem,5vw,3.2rem)}
.sec-head-row{display:flex;align-items:end;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.sec-head h2{font-size:clamp(1.7rem,3.4vw,2.5rem);margin:0 0 .4rem;font-weight:900;letter-spacing:-.01em}
.sec-head h2::before{content:"";display:inline-block;width:.55em;height:.55em;margin-right:.35em;transform:rotate(45deg);background:var(--accent);vertical-align:.12em}
.sec-head.light h2::before{background:var(--amber)}
.sec-sub{color:var(--ink-2);max-width:52em;margin:.2rem 0 0;font-size:1rem}
.sec-head.light .sec-sub{color:rgba(255,255,255,.72)}

/* ---------- 产品卡 ---------- */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(.9rem,1.8vw,1.4rem)}
.product-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.pc-art{background:var(--white);padding:clamp(.6rem,1.4vw,1.1rem);border-bottom:1px solid var(--line-soft)}
.pc-art svg{width:100%;height:auto}
.pc-art .asset-img{width:100%;height:auto}
.sc-art .asset-img{width:min(150px,80%);max-height:130px;object-fit:contain}
.cat-card .asset-img{width:110px;height:auto}
.hero .sheet .asset-img{width:100%;height:auto}
.asset-img{display:block;margin-inline:auto}
/* 后台上传图：页头 Logo */
.brand-mark .logo-img{width:40px;height:40px;object-fit:contain;display:block}
/* 后台上传图：首屏主视觉 */
.hero-art.photo{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.9rem;min-height:380px}
.hero-art.photo .sheet,.hero-art.photo .chip{display:none}
.hero-art.photo .hero-photo{width:min(100%,560px);max-height:420px;object-fit:contain;border-radius:18px;box-shadow:var(--shadow-2);background:#fff;border:1px solid var(--line)}
.hero-art.photo .hero-cap{position:static;background:transparent;padding:0;margin:0}
@media(max-width:920px){.hero-art.photo{min-height:0;padding:1rem 0}}
/* 后台上传图：FAQ 条目图标 */
.faq-ic{display:inline-flex;align-items:center;margin-right:.55rem;vertical-align:middle}
.faq-ic .asset-img{width:26px;height:26px;object-fit:contain}
.pc-body{padding:clamp(.9rem,1.6vw,1.3rem);display:flex;flex-direction:column;gap:.85rem;flex:1}
.pc-body h3{font-size:1.22rem;margin:0;font-weight:900}
.pc-desc{color:var(--ink-2);margin:0;font-size:.94rem;line-height:1.7}
.pc-spec{margin:0;display:grid;gap:0;border-top:1px dashed var(--line)}
.pc-spec div{display:grid;grid-template-columns:4em 1fr;gap:.5rem;padding:.5rem 0;border-bottom:1px dashed var(--line-soft)}
.pc-spec dt{color:var(--ink-3);font-weight:500;font-size:.88rem}
.pc-spec dd{margin:0;font-weight:500;font-size:.9rem}
.pc-cta{display:flex;flex-direction:column;align-items:stretch;gap:.55rem;margin-top:auto;padding-top:.5rem}
.pc-more{text-decoration:none;color:var(--ink-2);font-weight:500;font-size:.9rem;text-align:center}
.pc-cta .btn{width:100%}
.pc-more:hover{color:var(--accent)}

/* ---------- 应用场景 ---------- */
.scenes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.5rem)}
.scene{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.scene:hover{transform:translateY(-3px);box-shadow:var(--shadow-1)}
.sc-art{position:relative;background:
  radial-gradient(circle at 20% 15%, rgba(0,169,224,.10), transparent 45%),
  radial-gradient(circle at 85% 90%, rgba(229,0,127,.08), transparent 45%),
  #fff;padding:1.2rem;display:flex;align-items:center;justify-content:center;min-height:170px}
.sc-art svg{width:min(150px,80%)}
.sc-tag{position:absolute;top:.7rem;right:.7rem;background:rgba(22,34,46,.85);color:#fff;font-size:.72rem;font-weight:500;padding:.2rem .6rem;border-radius:999px;letter-spacing:.03em}
.scene figcaption{padding:1rem 1.1rem 1.15rem;border-top:1px solid var(--line-soft)}
.scene h3{margin:0 0 .25rem;font-size:1.05rem;font-weight:800}
.scene p{margin:0;color:var(--ink-2);font-size:.9rem}

/* ---------- 工艺 why ---------- */
.why-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1rem,2vw,1.6rem);counter-reset:why}
.why-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:clamp(1.1rem,2vw,1.6rem);position:relative;display:flex;flex-direction:column;gap:.6rem;transition:transform .25s var(--ease),border-color .25s}
.why-item:hover{transform:translateY(-3px);border-color:var(--accent)}
.why-no{display:flex;align-items:center;justify-content:space-between;color:var(--accent)}
.why-no span{font-family:var(--ff-num);font-size:1.6rem;font-weight:600;line-height:1}
.why-no svg{width:26px;height:26px;color:var(--ink-3);opacity:.6}
.why-item h3{margin:0;font-size:1.06rem;font-weight:800}
.why-item p{margin:0;color:var(--ink-2);font-size:.92rem;line-height:1.7}
@media(max-width:860px){.why-grid{grid-template-columns:repeat(2,1fr)}}

/* ---------- 深色流程 ---------- */
.section-ink{background:var(--ink);color:#fff}
.sec-head.light h2{color:#fff}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(.8rem,1.6vw,1.4rem);counter-reset:none}
.step{position:relative;border:1px solid rgba(255,255,255,.16);border-radius:var(--r-sm);padding:1.3rem 1.1rem 1.4rem;background:rgba(255,255,255,.03)}
.step::after{content:"";position:absolute;top:50%;right:-.9rem;width:.9rem;height:2px;background:var(--accent)}
.step:last-child::after{display:none}
.step-no{font-family:var(--ff-num);font-size:2.4rem;font-weight:600;line-height:1;display:block;color:transparent;-webkit-text-stroke:1px var(--accent);margin-bottom:1.4rem}
.step h3{font-size:1.02rem;margin:0 0 .5rem;font-weight:800}
.step p{margin:0;font-size:.85rem;line-height:1.65;color:rgba(255,255,255,.7)}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}.step::after{display:none}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq{display:grid;gap:.7rem}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm)}
.faq-item[open]{box-shadow:var(--shadow-1)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1.05rem 1.3rem;font-weight:700;font-size:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq-item p{margin:0;padding:0 1.3rem 1.2rem;color:var(--ink-2);max-width:58em}
.faq-x{position:relative;width:14px;height:14px;flex:none;opacity:.75}
.faq-x::before,.faq-x::after{content:"";position:absolute;background:var(--accent);border-radius:2px}
.faq-x::before{left:0;right:0;top:6px;height:2px}
.faq-x::after{top:0;bottom:0;left:6px;width:2px;transition:transform .25s var(--ease)}
.faq-item[open] .faq-x::after{transform:scaleY(0)}

/* ---------- CTA 联系 ---------- */
.cta-band{background:linear-gradient(135deg,#1B2A39 0%,var(--ink) 55%,#22394A 100%);color:#fff}
.cta-in{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(2rem,4vw,4rem);align-items:center}
.cta-copy h2{font-size:clamp(1.8rem,3.6vw,2.7rem);margin:0 0 1rem;font-weight:900}
.cta-copy>p{color:rgba(255,255,255,.78);max-width:36em;margin:0 0 1.8rem;font-size:1.03rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:.9rem;margin-bottom:1.3rem}
.cta-note{font-size:.82rem;color:rgba(255,255,255,.5)}
.cta-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);padding:1.6rem;position:relative;overflow:hidden}
.cta-card-art svg{width:170px;height:auto;margin:0 auto .8rem;filter:drop-shadow(0 14px 24px rgba(0,0,0,.35))}
.cta-card dl{margin:0;display:grid;gap:.5rem;border-top:1px dashed rgba(255,255,255,.2);padding-top:1rem}
.cta-card dl div{display:grid;grid-template-columns:5.5em 1fr;gap:.6rem;font-size:.95rem}
.cta-card dt{color:rgba(255,255,255,.6);font-weight:500}
.cta-card dd{margin:0;font-weight:600}
.cta-card-art{display:flex}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1821;color:rgba(255,255,255,.75)}
.footer-in{display:flex;align-items:center;gap:2rem;padding-block:2rem;flex-wrap:wrap}
.f-brand{margin-right:auto}
.f-name{margin:0;font-weight:900;font-size:1.05rem;color:#fff}
.f-name small{font-family:var(--ff-num);font-weight:500;font-size:.6rem;letter-spacing:.22em;color:rgba(255,255,255,.5)}
.f-line{margin:.3rem 0 0;font-size:.85rem;color:rgba(255,255,255,.55)}
.f-nav{display:flex;gap:1.4rem;flex-wrap:wrap}
.f-nav a{color:rgba(255,255,255,.7);text-decoration:none;font-size:.92rem}
.f-nav a:hover{color:#fff}
.f-copy{flex-basis:100%;border-top:1px solid rgba(255,255,255,.1);padding-top:1.2rem;margin:0;font-size:.82rem;color:rgba(255,255,255,.45)}

/* ---------- 移动菜单 ---------- */
@media(max-width:980px){
  .site-nav{position:fixed;inset:0 0 auto 0;top:68px;background:var(--paper);flex-direction:column;gap:0;padding:.4rem 1rem 1rem;border-bottom:1px solid var(--line);display:none}
  .site-nav.open{display:flex}
  .site-nav a{padding:.85rem .4rem;border-bottom:1px solid var(--line-soft);font-size:1.05rem}
  .nav-burger{display:flex}
  .header-cta .btn{display:none}
  .scenes-grid{grid-template-columns:1fr}
  .cta-in{grid-template-columns:1fr}
  .cta-card{max-width:460px}
}
@media(max-width:560px){
  .brand-name small{display:none}
  .hero-points{display:none}
  .why-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
}

/* 产品卡响应式分级：3 列 → 2 列 → 1 列 */
@media(max-width:1200px){.product-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.product-grid{grid-template-columns:1fr}}

/* =========================================================
   定制器 dg
   ========================================================= */
.dg{position:fixed;inset:0;z-index:100;background:rgba(14,24,33,.6);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:grid;place-items:center;padding:2vh 3vw}
.dg[hidden]{display:none}
.dg-shell{width:min(860px,100%);max-height:92vh;background:var(--paper);border-radius:20px;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-2);animation:sheetUp .45s var(--ease) both}
@keyframes sheetUp{from{opacity:0;transform:translateY(26px) scale(.985)}to{opacity:1;transform:none}}
.dg-head{background:var(--ink);color:#fff;padding:1.05rem 1.5rem;display:grid;grid-template-columns:1fr auto;align-items:center;position:relative}
.dg-title{margin:0;font-weight:900;font-size:1.1rem;display:flex;align-items:center;gap:.55rem;letter-spacing:.02em}
.dg-title .reg{color:var(--amber)}
.dg-hint{grid-column:1/-1;margin:0;font-size:.82rem;color:rgba(255,255,255,.6);padding-top:.2rem}
.dg-close{position:absolute;top:1.05rem;right:1.1rem;width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.3);background:transparent;cursor:pointer}
.dg-close span{position:absolute;left:50%;top:50%;width:16px;height:2px;background:#fff;border-radius:2px}
.dg-close span:first-child{transform:translate(-50%,-50%) rotate(45deg)}
.dg-close span:last-child{transform:translate(-50%,-50%) rotate(-45deg)}
.dg-body{padding:1.6rem clamp(1.2rem,3vw,2rem) 2rem;overflow-y:auto}
.dg-steps{list-style:none;margin:0 0 1.6rem;padding:0;display:flex;gap:.4rem;counter-reset:dg}
.dg-steps li{flex:1;text-align:center;font-size:.85rem;color:var(--ink-3);font-weight:500;position:relative;padding-top:1.9rem}
.dg-steps li::before{content:attr(data-s);position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:26px;border-radius:50%;background:#fff;border:1.5px solid var(--line);color:var(--ink-3);display:grid;place-items:center;font-size:.8rem;font-weight:700;font-family:var(--ff-num)}
.dg-steps li:not(:last-child)::after{content:"";position:absolute;top:13px;right:-50%;left:50%;width:100%;height:1.5px;background:var(--line);z-index:-1}
.dg-steps li.on{color:var(--ink);font-weight:700}
.dg-steps li.on::before{background:var(--accent);border-color:var(--accent);color:#fff}
.dg-steps li.done::before{background:var(--ink);border-color:var(--ink);color:#fff}
.dg-pane h3{font-size:1.3rem;margin:0 0 1rem;font-weight:900}
.dg-sub{margin:-.4rem 0 1.2rem;color:var(--ink-2);font-size:.95rem}
.dg-foot{display:flex;justify-content:flex-end;gap:.8rem;margin:1.6rem 0 0;flex-wrap:wrap}
.dg-foot-end{justify-content:space-between}
/* 品类卡 */
.cat-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.cat-card{border:1.5px solid var(--line);background:#fff;border-radius:var(--r-md);padding:1.4rem 1.3rem;cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:.5rem;transition:.2s var(--ease)}
.cat-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.cat-card svg{width:110px;height:auto}
.cat-card b{font-size:1.12rem;font-weight:900}
.cat-card span{font-size:.86rem;color:var(--ink-2);line-height:1.55}
.cat-card.sel{border-color:var(--accent);background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent)}
.cat-ask{width:100%;margin-top:1rem;flex-direction:row;align-items:center;border-style:dashed}
.cat-ask svg{width:54px}
/* 选项表单 */
.opt-group{border:1px solid var(--line);background:#fff;border-radius:var(--r-md);padding:1.1rem 1.2rem 1.25rem;margin-bottom:1rem}
.opt-group legend,.opt-label{font-weight:800;font-size:.98rem;padding:0;margin-bottom:.75rem;display:block}
.opt-row{display:flex;flex-wrap:wrap;gap:.55rem}
.opt{position:relative}
.opt input{position:absolute;inset:0;opacity:0;cursor:pointer}
.opt .opt-txt{display:inline-flex;align-items:center;border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:.42rem .95rem;font-size:.9rem;font-weight:500;cursor:pointer;transition:.15s}
.opt .opt-txt small{display:block;color:var(--ink-3);font-size:.74rem;margin-top:.1em}
.opt input:checked+.opt-txt{border-color:var(--accent);background:var(--accent);color:#fff}
.opt input:checked+.opt-txt small{color:rgba(255,255,255,.85)}
.opt input:focus-visible+.opt-txt{outline:3px solid var(--accent);outline-offset:2px}
.opt-qty{display:flex;flex-wrap:wrap;gap:.55rem;align-items:center}
/* 宽×高(cm) 尺寸输入 */
.wh-wrap{margin:.1rem 0 0}
.wh-row{display:flex;align-items:flex-end;gap:.8rem;flex-wrap:wrap}
.wh-item{display:grid;gap:.32rem;font-weight:700;font-size:.9rem;color:var(--ink)}
.wh-item .wh-in{display:flex;align-items:center;gap:.4rem}
.wh-item input{width:124px;border:1.5px solid var(--line);border-radius:10px;padding:.55rem .7rem;font:inherit;font-size:1.02rem;color:var(--ink);background:#fff}
.wh-item input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.wh-item i{font-style:normal;color:var(--ink-3);font-weight:500;font-size:.86rem}
.wh-x{font-weight:800;font-size:1.15rem;color:var(--ink-3);padding-bottom:.85rem}
.wh-hint{margin:.55rem 0 0;color:var(--ink-3);font-size:.82rem}
.wh-qty{display:flex;align-items:center;gap:.6rem;margin-top:.9rem;padding-top:.75rem;border-top:1px dashed var(--line-soft)}
.wh-qty>span{font-weight:700;font-size:.9rem;color:var(--ink)}
.wh-qty input{width:180px;border:1.5px solid var(--line);border-radius:10px;padding:.55rem .7rem;font:inherit;font-size:1.02rem;color:var(--ink);background:#fff}
.wh-qty input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.wh-qty i{font-style:normal;color:var(--ink-3);font-weight:500;font-size:.86rem}
/* 上传 */
.drop{border:2px dashed var(--ink-3);border-radius:var(--r-md);background:#fff;padding:2.4rem 1rem;text-align:center;cursor:pointer;transition:.2s}
.drop:hover,.drop.over{border-color:var(--accent);background:var(--accent-soft)}
.drop-main{margin:0 0 .3rem;font-weight:700;font-size:1.05rem}
.drop-main u{color:var(--accent)}
.drop-sub{margin:0;color:var(--ink-3);font-size:.85rem}
.file-chip{display:flex;align-items:center;gap:.8rem;background:#fff;border:1px solid var(--line);border-radius:999px;padding:.5rem 1rem;margin-top:.8rem}
.file-chip span{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.file-chip button{border:none;background:none;font-size:1.2rem;cursor:pointer;color:var(--ink-3)}
.samples{margin-top:1.2rem}
.samples-label{margin:0 0 .6rem;color:var(--ink-3);font-size:.9rem;font-weight:500}
.sample-row{display:flex;flex-wrap:wrap;gap:.6rem}
.sample{border:1px solid var(--line);background:#fff;border-radius:999px;padding:.45rem 1rem;font-size:.88rem;cursor:pointer;transition:.15s}
.sample:hover,.sample.on{border-color:var(--accent);color:var(--accent);font-weight:700}
/* 估价结果 */
.est{background:var(--ink);color:#fff;border-radius:var(--r-md);padding:1.3rem 1.4rem;display:grid;gap:.35rem;margin-bottom:.8rem}
.est-top{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap}
.est-label{color:rgba(255,255,255,.65);font-size:.88rem}
.est-num{font-family:var(--ff-num);font-size:2.4rem;font-weight:600;line-height:1;color:#fff}
.est-num span{color:var(--amber);font-size:1.1rem}
.est-num small{font-size:1rem;color:rgba(255,255,255,.7);font-weight:500}
.est-meta{display:flex;flex-wrap:wrap;gap:.4rem 1.2rem;border-top:1px dashed rgba(255,255,255,.25);padding-top:.8rem;margin-top:.4rem;font-size:.86rem;color:rgba(255,255,255,.75)}
.est-meta b{color:#fff;font-weight:600}
.est-note{font-size:.82rem;color:var(--ink-3);margin:.2rem 0 1.4rem}
/* 表单 */
.form{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}
.form label{display:grid;gap:.35rem;font-weight:600;font-size:.9rem;color:var(--ink-2)}
.form label.full{grid-column:1/-1}
.form input,.form textarea{border:1.5px solid var(--line);border-radius:10px;padding:.7rem .9rem;font:inherit;font-size:.95rem;background:#fff;color:var(--ink);resize:vertical}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
/* 询单结果 */
.result{background:#E4EDE0;border:1px solid #9FC09B;border-radius:var(--r-md);padding:1.2rem 1.3rem;margin-top:1.1rem}
.result h4{margin:0 0 .5rem;font-size:1.02rem;color:#1F4A2A}
.result pre{white-space:pre-wrap;font:inherit;font-size:.9rem;color:#24402B;margin:0 0 .9rem;background:rgba(255,255,255,.65);border-radius:8px;padding:.8rem;line-height:1.7}
.result-actions{display:flex;gap:.7rem;flex-wrap:wrap}

/* 提示 toast */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:.8rem 1.4rem;border-radius:999px;font-weight:600;font-size:.95rem;box-shadow:var(--shadow-2);opacity:0;pointer-events:none;transition:.3s var(--ease);z-index:300;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}

.ph-note{opacity:.85}
@media(max-width:640px){
  .cat-cards,.form{grid-template-columns:1fr}
  .est-num{font-size:1.9rem}
  .dg{padding:0}
  .dg-shell{max-height:100vh;border-radius:0}
}