/* LIVEN 网站预览 V4 — 基础样式：颜色、字体、页眉页脚、按钮、卡片、弹窗、悬浮联系栏。
   风格对标老板娘发来的小红书视频（Aulank 泵业独立站）：白 / 浅灰底，红色强调，几何无衬线粗标题，模块化卡片。
   品牌细节：力丰标志的 65° 红色斜块，用作标签前缀、选项卡和进度条。 */
@font-face{font-family:'Outfit';src:url('../fonts/outfit-400.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Outfit';src:url('../fonts/outfit-700.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}

:root{
  --red:#E61E28;          /* 标志红 */
  --red-deep:#C3141D;     /* 按钮悬停 */
  --red-dark:#7E1116;     /* 深红区块 */
  --red-night:#3E0A0D;    /* 深红区块暗部 */
  --ink:#1E1F21;          /* 标题 */
  --text:#4B4C4E;         /* 正文（标志灰） */
  --muted:#7C7E83;        /* 次要文字 */
  --line:#E4E4E4;
  --mist:#F4F4F4;         /* 浅灰区块 */
  --mist-2:#F8F8F8;
  --white:#FFFFFF;
  --dark:#16171A;
  /* 旧 3D 区块变量 */
  --concrete:#EDEBE7;--paper:#FFFFFF;
  --font:'Outfit','PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  --max:1240px;
  --gutter:clamp(16px,4vw,40px);
  --hd:78px;
  --r-s:6px;--r:12px;--r-l:20px;
  --shadow:0 12px 32px rgba(30,31,33,.08);
  --shadow-lg:0 24px 60px rgba(30,31,33,.16);
  --ease:cubic-bezier(.22,.7,.2,1);
  --slant:-25deg;          /* 65° 斜块 */
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--hd) + 16px)}
body{margin:0;background:var(--white);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
body.zh{line-height:1.75}
img,video,canvas,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.18;margin:0;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--red);outline-offset:3px}
[hidden]{display:none!important}
.skip-link{position:fixed;left:16px;top:-60px;z-index:200;background:var(--ink);color:#fff;padding:10px 14px;border-radius:var(--r-s)}
.skip-link:focus{top:12px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{width:100%;max-width:calc(var(--max) + var(--gutter)*2);margin:0 auto;padding:0 var(--gutter)}
main{min-height:60vh;outline:none}
.section{padding:clamp(64px,8vw,104px) 0}
.section-mist{background:var(--mist)}
.section-tight{padding:clamp(48px,6vw,72px) 0}

/* ---------- 文字 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--red);font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;line-height:1.2}
.eyebrow::before{content:'';width:15px;height:12px;flex:none;background:linear-gradient(90deg,var(--red) 0 38%,transparent 38% 62%,var(--red) 62%);transform:skewX(var(--slant))}
.eyebrow.light{color:#fff}
.eyebrow.light::before{background:linear-gradient(90deg,#fff 0 38%,transparent 38% 62%,#fff 62%)}
body.zh .eyebrow{letter-spacing:.04em}
.h-xl{font-size:clamp(36px,5.2vw,60px);line-height:1.08;letter-spacing:-.02em}
.h-l{font-size:clamp(30px,3.6vw,44px);line-height:1.12;letter-spacing:-.015em}
.h-m{font-size:clamp(24px,2.4vw,30px)}
.h-s{font-size:20px;line-height:1.3}
.lead{font-size:clamp(16px,1.3vw,18px);line-height:1.7;color:var(--text)}
.muted{color:var(--muted)}
.sec-head{display:grid;gap:14px;margin-bottom:clamp(32px,4vw,48px)}
.sec-head.center{text-align:center;justify-items:center}
.sec-head.center p{max-width:720px}
.sec-head.split{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:end;column-gap:clamp(32px,6vw,96px)}
.sec-head.split>.eyebrow{grid-column:1;grid-row:1}
.sec-head.split>h2{grid-column:1;grid-row:2}
.sec-head.split>p,.sec-head.split>.sec-side{grid-column:2;grid-row:2;align-self:end}
.sec-head.split>.sec-side{justify-self:end}
.note{font-size:13px;line-height:1.6;color:var(--muted)}
.note-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;color:var(--muted);background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:999px;padding:6px 10px}

/* ---------- 按钮 ---------- */
.btn{--bg:var(--ink);--fg:#fff;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:0 26px;border-radius:var(--r-s);background:var(--bg);color:var(--fg);font-weight:700;font-size:15px;line-height:1;letter-spacing:.01em;border:1px solid transparent;transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn svg{width:16px;height:16px;flex:none}
.btn-red{--bg:var(--red);--fg:#fff}
.btn-red:hover{--bg:var(--red-deep);box-shadow:0 10px 24px rgba(230,30,40,.25)}
.btn-white{--bg:#fff;--fg:var(--ink)}
.btn-white:hover{--bg:#fff;box-shadow:0 10px 24px rgba(0,0,0,.18)}
.btn-line{--bg:transparent;--fg:var(--ink);border-color:#CFCFCF}
.btn-line:hover{border-color:var(--ink)}
.btn-line-red{--bg:#fff;--fg:var(--red);border-color:var(--red)}
.btn-line-red:hover{--bg:var(--red);--fg:#fff}
.btn-ghost-light{--bg:rgba(255,255,255,.08);--fg:#fff;border-color:rgba(255,255,255,.55);backdrop-filter:blur(6px)}
.btn-ghost-light:hover{--bg:#fff;--fg:var(--ink)}
.btn-pill{border-radius:999px}
.btn-sm{min-height:38px;padding:0 18px;font-size:13px}
.btn-block{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);font-size:15px}
.text-link svg{width:16px;height:16px;transition:transform .2s}
.text-link:hover{color:var(--red)}
.text-link:hover svg{transform:translate(2px,-2px)}
.round-arrow{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--red);color:#fff;flex:none;transition:transform .25s var(--ease)}
.round-arrow svg{width:18px;height:18px}

/* ---------- 页眉 ---------- */
.hd{position:fixed;inset:0 0 auto;z-index:60;height:var(--hd);background:#fff;color:var(--ink);transition:background .3s,box-shadow .3s,color .3s;box-shadow:0 1px 0 var(--line)}
.hd-in{height:100%;max-width:calc(1400px + var(--gutter)*2);margin:0 auto;padding:0 var(--gutter);display:flex;align-items:center;gap:28px}
.hd-logo{flex:none;width:168px;color:var(--text)}
.logo-svg{display:block;width:100%;height:auto}
.logo-svg .lg-mark{fill:var(--red)}
.logo-svg .lg-word{fill:currentColor;transition:fill .3s}
.hd-nav{flex:1;display:flex;justify-content:center;align-items:center;gap:clamp(14px,2vw,30px)}
.hd-nav>a,.hd-drop>a{position:relative;font-size:15px;font-weight:700;letter-spacing:.01em;padding:28px 0;white-space:nowrap;transition:color .2s}
.hd-nav>a::after,.hd-drop>a::after{content:'';position:absolute;left:0;right:0;bottom:20px;height:3px;background:var(--red);transform:scaleX(0) skewX(var(--slant));transform-origin:left;transition:transform .3s var(--ease)}
.hd-nav>a:hover,.hd-drop>a:hover,.hd-nav a.is-active{color:var(--red)}
.hd-nav a.is-active::after,.hd-nav>a:hover::after,.hd-drop:hover>a::after{transform:scaleX(1) skewX(var(--slant))}
.hd-nav-head,.hd-nav-foot,.hd-nav-close{display:none}
.hd-drop{position:static;display:flex;align-items:center;gap:2px}
.hd-drop>a{position:relative}
.hd-drop-btn{width:18px;height:18px;display:grid;place-items:center;color:inherit}
.hd-drop-btn svg{width:12px;height:12px;transition:transform .25s}
.hd-drop.open .hd-drop-btn svg{transform:rotate(180deg)}
.hd-tools{display:flex;align-items:center;gap:8px;flex:none}
.hd-icon{position:relative;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:inherit;transition:background .2s}
.hd-icon:hover{background:rgba(0,0,0,.06)}
.hd-icon svg{width:19px;height:19px}
.hd-sel .sel-count{position:absolute;top:1px;right:-1px;min-width:17px;height:17px;padding:0 4px;border-radius:9px;background:var(--red);color:#fff;font-size:10px;font-weight:700;line-height:17px;text-align:center}
.hd-sel .sel-count[data-zero]{display:none}
.hd-quote{margin-left:6px}
.hd-burger{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.hd-burger span{width:22px;height:2px;background:currentColor;border-radius:2px}
/* 首页透明页眉 */
body.hd-over .hd{background:transparent;color:#fff;box-shadow:none}
body.hd-over .hd .hd-icon:hover{background:rgba(255,255,255,.14)}
body.hd-over .hd-nav>a::after,body.hd-over .hd-drop>a::after{background:#fff}
body.hd-over .hd-nav a.is-active,body.hd-over .hd-nav>a:hover,body.hd-over .hd-drop>a:hover{color:#fff}
body.hd-over .hd-logo{color:#fff}
/* 语言 */
.hd-lang{position:relative}
.lang-menu{position:absolute;right:-8px;top:calc(100% + 12px);width:230px;background:#fff;color:var(--ink);border-radius:var(--r);box-shadow:var(--shadow-lg);padding:8px;display:grid;gap:2px;z-index:5}
.lang-menu button,.lang-menu span{display:flex;justify-content:space-between;padding:10px 12px;border-radius:8px;font-size:14px;text-align:left}
.lang-menu button:hover{background:var(--mist)}
.lang-menu button[aria-current=true]{color:var(--red);font-weight:700}
.lang-menu button[aria-current=true]::after{content:'✓'}
.lang-planned{color:#B3B5B9}
.lang-menu small{display:block;padding:8px 12px 6px;border-top:1px solid var(--line);margin-top:4px;font-size:12px;line-height:1.5;color:var(--muted)}
/* 产品大菜单 */
.mega{position:absolute;left:50%;top:calc(100% + 2px);width:min(1000px,calc(100vw - 48px));transform:translate(-50%,10px);background:#fff;color:var(--ink);border-radius:var(--r);box-shadow:var(--shadow-lg);padding:28px;display:grid;grid-template-columns:1fr 1fr 1.25fr;gap:28px;opacity:0;visibility:hidden;transition:opacity .25s,transform .25s var(--ease),visibility .25s;z-index:5}
.hd-drop:hover .mega,.hd-drop:focus-within .mega,.hd-drop.open .mega{opacity:1;visibility:visible;transform:translate(-50%,0)}
.hd-drop.closed .mega{opacity:0!important;visibility:hidden!important}
.mega::before{content:'';position:absolute;left:0;right:0;top:-14px;height:14px}
.mega h3{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.mega-list{display:grid;gap:2px}
.mega-list a{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 12px;border-radius:8px;font-size:15px;font-weight:700;transition:background .2s,color .2s}
.mega-list a small{font-size:12px;font-weight:400;color:var(--muted)}
.mega-list a:hover{background:var(--mist);color:var(--red)}
.mega-list a.is-first{color:var(--red);background:#FDF0F0}
.mega-tones a{font-weight:400}
.mega-tones i{width:16px;height:16px;border-radius:50%;flex:none;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12);background-size:cover;background-position:center}
.mega-tones a span{display:flex;align-items:center;gap:10px}
.mega-feature{position:relative;border-radius:var(--r);overflow:hidden;background:linear-gradient(160deg,#F2F2F2,#DCDCDC);min-height:260px;display:flex;align-items:flex-end;padding:20px}
.mega-slabs{position:absolute;inset:18px 18px 70px;display:flex;justify-content:center;align-items:flex-end;gap:10px;perspective:800px}
.mega-slabs img{width:30%;height:88%;object-fit:cover;border-radius:4px;box-shadow:0 14px 26px rgba(0,0,0,.22);transform:rotateY(-14deg)}
.mega-slabs img:nth-child(2){height:100%;transform:none}
.mega-slabs img:nth-child(3){transform:rotateY(14deg)}
.mega-feature .text-link{position:relative}

/* ---------- 页面横幅 / 面包屑 ---------- */
.page-banner{position:relative;min-height:clamp(320px,38vw,440px);display:flex;align-items:flex-end;color:#fff;background:var(--dark);overflow:hidden;padding-top:var(--hd)}
.page-banner>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.page-banner::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,14,16,.78),rgba(14,14,16,.28) 70%),linear-gradient(0deg,rgba(14,14,16,.4),transparent 50%)}
.page-banner::before{content:'';position:absolute;inset:0 0 auto;height:180px;z-index:1;pointer-events:none;background:linear-gradient(180deg,rgba(14,14,16,.6),transparent)}
.page-banner .wrap{position:relative;z-index:2;padding-bottom:clamp(40px,5vw,64px)}
.page-banner h1{color:#fff;font-size:clamp(36px,5vw,58px);line-height:1.08;max-width:820px;margin-top:14px;text-wrap:balance}
.page-banner p{max-width:620px;margin-top:16px;color:rgba(255,255,255,.86);font-size:17px}
.page-banner .btn-row{margin-top:26px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:22px 0}
.crumbs a:hover{color:var(--red)}
.crumbs span[aria-hidden]{color:#C4C4C4}
.crumbs [aria-current]{color:var(--ink);font-weight:700}
.page-plain{padding-top:var(--hd)}

/* ---------- 产品卡 ---------- */
.pcard{position:relative;display:flex;flex-direction:column;background:#fff;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);transition:box-shadow .3s,transform .3s var(--ease),border-color .3s;container-type:inline-size}
.pcard:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:transparent}
.pcard-img{position:relative;display:block;aspect-ratio:4/3;overflow:hidden;background:var(--mist)}
.pcard-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.pcard:hover .pcard-img img{transform:scale(1.12)}
.pcard-mark{position:absolute;left:14px;top:14px;width:62px;padding:6px 8px;background:rgba(255,255,255,.9);border-radius:4px}
.pcard-mark .logo-svg .lg-word{fill:var(--text)}
.badge{position:absolute;right:12px;top:12px;display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#fff;background:var(--red)}
.badge.new{background:var(--ink)}
.pcard-save{position:absolute;right:12px;top:calc(75cqw - 46px);width:34px;height:34px;border-radius:50%;background:#fff;color:var(--ink);display:grid;place-items:center;box-shadow:0 4px 12px rgba(0,0,0,.14);opacity:0;transform:translateY(6px);transition:opacity .25s,transform .25s,background .2s,color .2s}
.pcard-save svg{width:16px;height:16px}
.pcard:hover .pcard-save,.pcard-save:focus-visible,.pcard-save[aria-pressed=true]{opacity:1;transform:none}
.pcard-save[aria-pressed=true]{background:var(--red);color:#fff}
@media (hover:none){.pcard-save{opacity:1;transform:none}}
.pcard-zoom{position:absolute;left:12px;bottom:12px;font-size:12px;font-weight:700;color:var(--ink);background:rgba(255,255,255,.92);border-radius:999px;padding:6px 10px;opacity:0;transition:opacity .25s}
.pcard:hover .pcard-zoom{opacity:1}
.pcard-body{display:flex;flex-direction:column;gap:6px;padding:18px 18px 20px;flex:1}
.pcard-body h3{font-size:19px;line-height:1.25}
.pcard-body h3 a:hover{color:var(--red)}
.pcard-code{color:var(--muted);font-weight:400}
.pcard-meta{font-size:13px;color:var(--muted)}
.pcard-desc{font-size:14px;line-height:1.55;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
.pcard-body .btn{margin-top:auto}
.pcard.compact .pcard-desc{display:none}

/* ---------- 轮播 ---------- */
.car{position:relative}
.car-track{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 3*20px)/4);gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;scrollbar-width:none;padding:6px 2px 18px;margin:-6px -2px 0;cursor:grab}
.car-track::-webkit-scrollbar{display:none}
.car-track.dragging{cursor:grabbing;scroll-snap-type:none;scroll-behavior:auto}
.car-track.dragging *{pointer-events:none}
.car-track>*{scroll-snap-align:start}
.car[data-cols="3"] .car-track{grid-auto-columns:calc((100% - 2*20px)/3)}
.car[data-cols="5"] .car-track{grid-auto-columns:calc((100% - 4*20px)/5)}
.car-bar{display:flex;align-items:center;gap:22px;margin-top:18px}
.car-progress{position:relative;flex:1;height:2px;background:var(--line);overflow:hidden}
.car-progress i{position:absolute;left:0;top:-1px;height:4px;width:var(--w,20%);transform:translateX(var(--x,0));background:var(--red)}
.car-btns{display:flex;gap:10px}
.car-btn{width:46px;height:46px;border-radius:50%;border:1px solid #D2D2D2;display:grid;place-items:center;color:var(--ink);background:#fff;transition:background .2s,color .2s,border-color .2s}
.car-btn svg{width:18px;height:18px}
.car-btn:hover:not(:disabled){background:var(--red);border-color:var(--red);color:#fff}
.car-btn:disabled{opacity:.35;cursor:default}
.car.on-dark .car-progress{background:rgba(255,255,255,.22)}
.car.on-dark .car-progress i{background:#fff}
.car.on-dark .car-btn{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.car.on-dark .car-btn:hover:not(:disabled){background:#fff;color:var(--red-dark);border-color:#fff}

/* ---------- 选项卡进度（斜块） ---------- */
.slash-bar{position:relative;height:4px;background:rgba(0,0,0,.08);overflow:hidden}
.slash-bar i{position:absolute;inset:0 auto 0 0;width:calc(var(--p,0)*100%);background:var(--red)}

/* ---------- 深色询价横幅 ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-l);background:var(--dark);color:#fff;text-align:center;padding:clamp(56px,7vw,88px) var(--gutter);isolation:isolate}
.cta-band::before{content:'';position:absolute;inset:-40%;z-index:-1;background:
  radial-gradient(ellipse 60% 22% at 50% 52%,rgba(230,30,40,.85),transparent 70%),
  repeating-linear-gradient(var(--slant-a,-12deg),transparent 0 18px,rgba(255,120,110,.10) 18px 19px),
  radial-gradient(ellipse 80% 50% at 50% 50%,#5A0C10,transparent 75%);
  transform:rotate(-8deg);animation:band-drift 14s ease-in-out infinite alternate}
.cta-band::after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(22,23,26,.9),transparent 30% 70%,rgba(22,23,26,.9))}
@keyframes band-drift{to{transform:rotate(-4deg) scale(1.08)}}
.cta-band h2{color:#fff;font-size:clamp(30px,3.8vw,46px)}
.cta-band p{margin:14px auto 28px;max-width:560px;color:rgba(255,255,255,.82);font-size:17px}
.cta-wrap{padding:0 0 clamp(64px,8vw,104px)}

/* ---------- 表单 ---------- */
.field{display:grid;gap:6px;font-size:13px;font-weight:700;color:var(--ink)}
.field input,.field select,.field textarea{width:100%;border:1px solid #E1E1E1;background:var(--mist-2);border-radius:var(--r-s);padding:13px 14px;font-size:15px;font-weight:400;color:var(--ink);transition:border-color .2s,background .2s,box-shadow .2s}
.field textarea{min-height:120px;resize:vertical;line-height:1.55}
.field input::placeholder,.field textarea::placeholder{color:#A0A2A6}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--red);background:#fff;box-shadow:0 0 0 3px rgba(230,30,40,.12)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .full{grid-column:1/-1}
.upload{position:relative;display:flex;align-items:center;justify-content:center;gap:10px;min-height:52px;border:1px dashed #C9C9C9;border-radius:var(--r-s);font-size:14px;font-weight:700;color:var(--ink);background:#fff;transition:border-color .2s,color .2s;cursor:pointer;text-align:center;padding:10px 14px}
.upload:hover{border-color:var(--red);color:var(--red)}
.upload svg{width:18px;height:18px;color:var(--red)}
.upload input{position:absolute;inset:0;opacity:0;cursor:pointer}
.upload small{font-weight:400;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 6px 0 12px;border-radius:999px;background:var(--mist);font-size:13px;font-weight:700;color:var(--ink)}
.chip button{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;color:var(--muted)}
.chip button:hover{background:#fff;color:var(--red)}
.chip button svg{width:12px;height:12px}
.form-note{font-size:12px;line-height:1.55;color:var(--muted)}
.form-done{display:grid;gap:14px;padding:22px;border-radius:var(--r);background:var(--mist);border-left:4px solid var(--red)}
.form-done h3{font-size:20px}
.form-done pre{margin:0;max-height:220px;overflow:auto;white-space:pre-wrap;font:13px/1.6 var(--font);color:var(--text);background:#fff;border-radius:var(--r-s);padding:14px}

/* ---------- 常见问题 ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
.faq{background:var(--mist);border-radius:var(--r);transition:background .25s,box-shadow .25s}
.faq[open]{background:#fff;box-shadow:var(--shadow)}
.faq summary{list-style:none;display:flex;align-items:center;gap:16px;padding:22px 24px;font-weight:700;color:var(--ink);font-size:16px;line-height:1.4;cursor:pointer}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:'';width:18px;height:18px;flex:none;border-radius:50%;border:5px solid var(--red);box-sizing:border-box}
.faq summary::after{content:'';margin-left:auto;width:12px;height:12px;flex:none;background:linear-gradient(var(--ink),var(--ink)) center/12px 2px no-repeat,linear-gradient(var(--ink),var(--ink)) center/2px 12px no-repeat;transition:transform .3s}
.faq[open] summary::after{transform:rotate(45deg)}
.faq p{padding:0 24px 22px 58px;font-size:15px;color:var(--text)}

/* ---------- 悬浮联系栏 ---------- */
.dock{position:fixed;right:18px;top:50%;z-index:55;transform:translateY(-50%);display:flex;flex-direction:column;gap:8px;padding:8px;border-radius:999px;background:rgba(214,214,214,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.dock>*{position:relative;width:42px;height:42px;border-radius:50%;background:#5B5D61;color:#fff;display:grid;place-items:center;transition:background .2s}
.dock>* svg{width:20px;height:20px}
.dock>*:hover,.dock>*:focus-visible{background:var(--red)}
.dock em{position:absolute;right:calc(100% + 14px);top:50%;transform:translate(8px,-50%);white-space:nowrap;font-style:normal;font-size:13px;font-weight:700;color:#fff;background:var(--ink);border-radius:6px;padding:7px 10px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}
.dock>*:hover em,.dock>*:focus-visible em{opacity:1;transform:translate(0,-50%)}
body.no-dock .dock{display:none}

/* ---------- 弹窗 ---------- */
.modal{padding:0;border:0;background:transparent;max-width:none;max-height:none;width:100%;height:100%;color:var(--text)}
.modal::backdrop{background:rgba(14,14,16,.62);backdrop-filter:blur(3px)}
.modal[open]{display:grid;place-items:center;animation:modal-in .3s var(--ease)}
@keyframes modal-in{from{opacity:0;transform:translateY(14px)}}
.modal-box{position:relative;width:min(560px,calc(100vw - 32px));max-height:calc(100dvh - 32px);overflow:auto;background:#fff;border-radius:var(--r);box-shadow:var(--shadow-lg);padding:clamp(24px,4vw,36px)}
.modal-x{position:absolute;right:14px;top:14px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:var(--ink);z-index:2}
.modal-x:hover{background:var(--mist);color:var(--red)}
.modal-x svg{width:18px;height:18px}
.modal-x-light{position:fixed;right:20px;top:20px;color:#fff;background:rgba(255,255,255,.12)}
.modal-x-light:hover{background:#fff;color:var(--ink)}
.quote-modal h2{font-size:28px;color:var(--red);margin-bottom:6px}
.quote-modal .modal-intro{font-size:14px;color:var(--muted);margin-bottom:20px}
.quote-modal form{display:grid;gap:12px}
.video-frame{width:min(1100px,calc(100vw - 32px));aspect-ratio:16/9;background:#000;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-lg)}
.video-frame video{width:100%;height:100%}
.image-modal figure{margin:0;display:grid;gap:10px;justify-items:center;padding:16px}
.image-modal img{max-width:calc(100vw - 32px);max-height:calc(100dvh - 90px);border-radius:4px;box-shadow:var(--shadow-lg)}
.image-modal figcaption{color:#fff;font-size:13px}
.search-modal[open]{place-items:start center;padding-top:12vh}
.search-modal .modal-box{width:min(720px,calc(100vw - 32px))}
.search-field{display:flex;align-items:center;gap:12px;border-bottom:2px solid var(--ink);padding-bottom:10px}
.search-field svg{width:22px;height:22px;color:var(--red);flex:none}
.search-field input::-webkit-search-cancel-button{-webkit-appearance:none;display:none}
.search-field input{flex:1;border:0;outline:none;font-size:clamp(20px,3vw,28px);font-weight:700;color:var(--ink);background:transparent;min-width:0}
.search-hint{margin-top:14px;font-size:13px;color:var(--muted)}
.search-results{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}
.search-results a{display:grid;gap:6px;font-size:13px;font-weight:700;color:var(--ink)}
.search-results img{aspect-ratio:4/3;object-fit:cover;border-radius:6px;transition:transform .3s}
.search-results a:hover img{transform:scale(1.04)}
.search-results a small{font-weight:400;color:var(--muted)}
.search-all{margin-top:18px}
.info-modal h2{font-size:24px;margin-bottom:12px}
.info-modal p+p{margin-top:10px}
.info-modal p{font-size:15px}

/* ---------- 页脚 ---------- */
.ft{background:var(--mist);padding:clamp(56px,7vw,80px) 0 28px;color:var(--text)}
.ft-top{display:grid;grid-template-columns:minmax(220px,1fr) 2.6fr;gap:clamp(32px,6vw,88px)}
.ft-brand{position:relative;display:grid;gap:18px;align-content:start}
.ft-logo{width:170px;color:var(--text)}
.ft-brand p{font-size:14px;line-height:1.7;max-width:300px;color:var(--muted)}
.ft-up{width:46px;height:46px;border-radius:50%;background:var(--red);color:#fff;display:grid;place-items:center;transition:transform .25s,background .2s}
.ft-up:hover{background:var(--red-deep);transform:translateY(-3px)}
.ft-up svg{width:18px;height:18px}
.ft-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
.ft-col{display:grid;gap:10px;align-content:start}
.ft-col h2{font-size:15px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:6px}
.ft-col>a{font-size:14px;color:var(--muted);transition:color .2s}
.ft-col>a:hover{color:var(--red)}
.ft-contact{display:grid;gap:12px}
.ft-contact li{display:grid;grid-template-columns:20px 1fr;gap:10px;font-size:14px;line-height:1.5;color:var(--muted)}
.ft-contact svg{width:18px;height:18px;color:var(--ink);margin-top:1px}
.ft-contact .tbc{color:#A3A5A9}
.ft-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px;margin-top:48px;padding-top:24px;border-top:1px solid #E1E1E1;font-size:13px;color:var(--muted)}
.ft-legal{display:grid;gap:4px}
.ft-social{display:flex;gap:10px}
.ft-social a{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--text);transition:background .2s,color .2s}
.ft-social a:hover{background:var(--red);color:#fff}
.ft-social svg{width:16px;height:16px}
.ft-preview{font-size:13px;text-decoration:underline;text-underline-offset:3px;color:var(--muted)}
.ft-preview:hover{color:var(--red)}

/* ---------- 提示 ---------- */
.toast{position:fixed;left:50%;bottom:28px;z-index:300;transform:translate(-50%,20px);max-width:calc(100vw - 32px);background:var(--ink);color:#fff;font-size:14px;line-height:1.5;padding:12px 18px;border-radius:var(--r-s);box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 进场动效（轻） ---------- */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:calc(var(--d,0)*90ms)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (min-width:981px) and (max-width:1400px){
  .dock{right:6px;padding:5px;gap:6px}
  .dock>*{width:36px;height:36px}
  .dock>* svg{width:18px;height:18px}
}
@media (max-width:1180px){
  .hd-nav{gap:16px}
  .hd-nav>a,.hd-drop>a{font-size:14px}
  .hd-quote{display:none}
  .car-track{grid-auto-columns:calc((100% - 2*20px)/3)}
  .car[data-cols="5"] .car-track{grid-auto-columns:calc((100% - 3*20px)/4)}
}
@media (max-width:980px){
  :root{--hd:66px}
  .hd-logo{width:140px}
  .hd-burger{display:flex}
  .hd-nav{position:fixed;inset:0 0 0 auto;width:min(380px,88vw);flex-direction:column;justify-content:flex-start;align-items:stretch;gap:0;background:#fff;color:var(--ink);padding:0 24px 24px;transform:translateX(100%);transition:transform .35s var(--ease);box-shadow:var(--shadow-lg);overflow:auto;z-index:70}
  .hd-nav.open{transform:none}
  body.nav-open::after{content:'';position:fixed;inset:0;background:rgba(14,14,16,.45);z-index:58}
  .hd-nav-head{display:flex;align-items:center;justify-content:space-between;height:var(--hd);border-bottom:1px solid var(--line);margin-bottom:6px}
  .hd-nav-head [data-logo]{width:130px;color:var(--text)}
  .hd-nav-close{display:grid;place-items:center;width:40px;height:40px}
  .hd-nav-close svg{width:20px;height:20px}
  .hd-nav>a,.hd-drop>a{padding:15px 0;font-size:17px;border-bottom:1px solid var(--line)}
  .hd-nav>a::after,.hd-drop>a::after{display:none}
  .hd-drop{flex-wrap:wrap;border-bottom:1px solid var(--line)}
  .hd-drop>a{flex:1;border-bottom:0}
  .hd-drop-btn{width:44px;height:44px}
  .hd-drop-btn svg{width:16px;height:16px}
  .mega{position:static;width:100%;transform:none;box-shadow:none;padding:6px 0 12px;display:none;grid-template-columns:1fr;opacity:1;visibility:visible;gap:12px}
  .hd-drop.open .mega{display:grid}
  .hd-drop:hover .mega{transform:none}
  .mega-feature{display:none}
  .hd-nav-foot{display:block;margin-top:22px}
  .hd-nav-foot .btn{width:100%}
  body.hd-over .hd-nav a.is-active,body.hd-over .hd-nav>a:hover{color:var(--red)}
  .hd-nav a.is-active{color:var(--red)}
  .sec-head.split{grid-template-columns:1fr}
  .sec-head.split>p,.sec-head.split>.sec-side{grid-column:1;grid-row:auto}
  .sec-head.split>.sec-side{justify-self:start}
  .faq-grid{grid-template-columns:1fr}
  .ft-top{grid-template-columns:1fr}
  .ft-cols{grid-template-columns:1fr 1fr}
  .car-track{grid-auto-columns:calc((100% - 20px)/2)}
  .car[data-cols="3"] .car-track,.car[data-cols="5"] .car-track{grid-auto-columns:calc((100% - 20px)/2)}
  /* 平板和手机：联系栏改到底部 */
  .dock{top:auto;bottom:0;right:0;left:0;transform:none;flex-direction:row;justify-content:space-around;border-radius:0;padding:8px 10px calc(8px + env(safe-area-inset-bottom));background:rgba(255,255,255,.94);box-shadow:0 -1px 0 var(--line)}
  .dock>*{width:44px;height:44px}
  .dock>*:first-child{background:var(--red)}
  .dock em{display:none}
  body{padding-bottom:64px}
  .toast{bottom:84px}
}
@media (max-width:640px){
  .hd-in{gap:10px}
  .hd-tools{gap:2px}
  .hd-icon{width:36px;height:36px}
  .car-track,.car[data-cols="3"] .car-track,.car[data-cols="5"] .car-track{grid-auto-columns:82%;gap:14px}
  .form-grid{grid-template-columns:1fr}
  .search-results{grid-template-columns:repeat(2,1fr)}
  .ft-cols{grid-template-columns:1fr 1fr;gap:24px}
  .ft-cols .ft-col:first-child{grid-column:1/-1}
  .faq summary{padding:18px}
  .faq p{padding:0 18px 18px 52px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none}
}

/* ---------- 询价类型（分段按钮）与错误提示 ---------- */
.seg{border:0;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.seg legend{float:left;width:100%;margin-bottom:8px;padding:0;font-size:13px;font-weight:700;color:var(--ink)}
.seg label{position:relative;cursor:pointer}
.seg input{position:absolute;opacity:0;inset:0;cursor:pointer}
.seg span{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;border:1px solid #DADADA;font-size:14px;font-weight:700;color:var(--text);transition:background .2s,color .2s,border-color .2s}
.seg input:checked+span{background:var(--red);border-color:var(--red);color:#fff}
.seg input:focus-visible+span{outline:2px solid var(--red);outline-offset:2px}
.form-error{color:var(--red);font-size:14px;font-weight:700;margin:-2px 0 2px}
.enquiry{display:grid;gap:14px}