/* ==========================================================================
   苏州量维钣金科技有限公司 — 官网样式表 v2.0
   响应式 / 语义化 / AI收录友好
   ========================================================================== */

:root{
  --c-navy:#0b2a4a;
  --c-navy-2:#123c66;
  --c-blue:#1668b8;
  --c-blue-l:#2f8fdd;
  --c-orange:#e8620c;
  --c-orange-d:#c74f06;
  --c-ink:#1c2530;
  --c-body:#4a5568;
  --c-mute:#8794a5;
  --c-line:#e3e8ef;
  --c-bg:#f5f7fa;
  --c-white:#fff;
  --c-green:#0f9d58;
  --r-s:4px;
  --r-m:8px;
  --r-l:14px;
  --sh-s:0 1px 3px rgba(11,42,74,.08);
  --sh-m:0 6px 20px rgba(11,42,74,.10);
  --sh-l:0 14px 40px rgba(11,42,74,.14);
  --w:1200px;
  --t:.28s cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--c-body);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-blue);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-orange)}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--c-ink);line-height:1.35;font-weight:700}
h1{font-size:34px}
h2{font-size:27px}
h3{font-size:20px}
h4{font-size:17px}
p{margin:0 0 14px}
ul,ol{margin:0 0 14px;padding-left:22px}
li{margin-bottom:7px}
table{border-collapse:collapse;width:100%}
button,input,select,textarea{font-family:inherit;font-size:inherit}

/* 无障碍：跳转链接 */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-orange);color:#fff;padding:10px 18px;z-index:9999;border-radius:0 0 var(--r-m) 0}
.skip-link:focus{left:0;color:#fff}

.container{max-width:var(--w);margin:0 auto;padding:0 20px}

/* ---------------- 顶部信息条 ---------------- */
.topbar{background:var(--c-navy);color:#c5d4e4;font-size:13.5px;line-height:1}
.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:40px;gap:16px;flex-wrap:wrap}
.topbar-slogan{margin:0;color:#dbe6f2}
.topbar-slogan strong{color:#ffd7b8}
.topbar-links{display:flex;gap:18px;align-items:center;white-space:nowrap}
.topbar-links a{color:#c5d4e4}
.topbar-links a:hover{color:var(--c-orange-l,#ffab6b)}

/* ---------------- 页头 ---------------- */
.site-header{background:#fff;box-shadow:var(--sh-s);position:sticky;top:0;z-index:900}
.header-main{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo img{height:50px;width:auto;max-width:210px}
.logo-txt b{display:block;font-size:20px;color:var(--c-navy);letter-spacing:.5px;line-height:1.3}
.logo-txt span{display:block;font-size:11.5px;color:var(--c-mute);letter-spacing:1.6px;text-transform:uppercase}
.header-tel{display:flex;align-items:center;gap:12px;text-align:right}
.header-tel .t-label{font-size:12.5px;color:var(--c-mute);line-height:1.5}
.header-tel .t-num{font-size:23px;font-weight:800;color:var(--c-orange);line-height:1.2;white-space:nowrap}
.header-tel .t-num small{font-size:12px;font-weight:400;color:var(--c-mute);display:block;letter-spacing:0}
.btn-quote{background:linear-gradient(135deg,var(--c-orange),var(--c-orange-d));color:#fff!important;padding:11px 26px;border-radius:100px;font-weight:700;font-size:15px;box-shadow:0 4px 14px rgba(232,98,12,.3);white-space:nowrap}
.btn-quote:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(232,98,12,.42);color:#fff!important}

/* ---------------- 主导航 ---------------- */
.main-nav{background:var(--c-navy);position:relative}
.main-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap}
.main-nav>div>ul>li{position:relative}
.main-nav>div>ul>li>a{display:block;padding:15px 22px;color:#e8f0f8;font-size:16px;font-weight:500;white-space:nowrap}
.main-nav>div>ul>li>a:hover,.main-nav>div>ul>li.active>a{background:var(--c-orange);color:#fff}
.main-nav .sub{position:absolute;left:0;top:100%;min-width:190px;background:#fff;box-shadow:var(--sh-m);border-radius:0 0 var(--r-m) var(--r-m);list-style:none;margin:0;padding:6px 0;display:block;opacity:0;visibility:hidden;transform:translateY(8px);transition:all var(--t);z-index:50}
.main-nav>div>ul>li:hover .sub{opacity:1;visibility:visible;transform:translateY(0)}
.main-nav .sub a{display:block;padding:10px 20px;color:var(--c-ink);font-size:14.5px;border-left:3px solid transparent}
.main-nav .sub a:hover{background:var(--c-bg);border-left-color:var(--c-orange);color:var(--c-orange)}
.nav-toggle{display:none;background:transparent;border:0;color:#fff;font-size:24px;padding:12px 18px;cursor:pointer}

/* ---------------- 面包屑 ---------------- */
.crumb{background:#eef2f7;border-bottom:1px solid var(--c-line);font-size:13.5px}
.crumb .container{padding-top:11px;padding-bottom:11px}
.crumb ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px;color:var(--c-mute)}
.crumb li{margin:0;display:flex;align-items:center;gap:6px}
.crumb li+li::before{content:"›";color:#b6c2d0}
.crumb a{color:var(--c-mute)}
.crumb a:hover{color:var(--c-orange)}
.crumb [aria-current]{color:var(--c-navy);font-weight:600}

/* ---------------- 通用区块 ---------------- */
.section{padding:64px 0}
.section-alt{background:#fff}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:3px;color:var(--c-blue);text-transform:uppercase;font-weight:700;margin-bottom:8px}
.sec-head h2{margin-bottom:10px}
.sec-head h2 em{font-style:normal;color:var(--c-orange)}
.sec-head p{color:var(--c-mute);font-size:15px;margin:0 auto;max-width:660px}
.sec-head--left{text-align:left}
.sec-head--left .eyebrow{letter-spacing:2px}

/* ---------------- 按钮 ---------------- */
.btn{display:inline-flex;align-items:center;gap:7px;padding:12px 28px;border-radius:100px;font-weight:600;font-size:15px;border:2px solid transparent;transition:all var(--t);cursor:pointer}
.btn-primary{background:var(--c-orange);color:#fff!important;box-shadow:0 4px 14px rgba(232,98,12,.28)}
.btn-primary:hover{background:var(--c-orange-d);transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.6);color:#fff!important}
.btn-ghost:hover{background:#fff;color:var(--c-navy)!important;border-color:#fff}
.btn-outline{border-color:var(--c-blue);color:var(--c-blue)!important}
.btn-outline:hover{background:var(--c-blue);color:#fff!important}

/* ---------------- 首页 Hero ---------------- */
.hero{position:relative;background:linear-gradient(120deg,#0b2a4a 0%,#123c66 55%,#1a5490 100%);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;right:-140px;top:-140px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(47,143,221,.34),transparent 68%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;padding:70px 0 76px}
.hero-tag{display:inline-block;background:rgba(232,98,12,.18);border:1px solid rgba(232,98,12,.5);color:#ffb27a;font-size:13.5px;padding:6px 16px;border-radius:100px;margin-bottom:20px;font-weight:600}
.hero h1{color:#fff;font-size:44px;line-height:1.25;margin-bottom:18px;letter-spacing:-.5px}
.hero h1 em{font-style:normal;color:#ffa45c}
.hero-lead{color:#c9dbec;font-size:16.5px;margin-bottom:12px}
.hero-points{list-style:none;padding:0;margin:0 0 28px;display:grid;grid-template-columns:1fr 1fr;gap:9px 20px}
.hero-points li{color:#dbe8f5;font-size:15px;display:flex;gap:8px;align-items:flex-start}
.hero-points li::before{content:"✓";color:#5fc98a;font-weight:800;flex-shrink:0}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-l);padding:26px;backdrop-filter:blur(6px)}
.hero-card h2{color:#fff;font-size:17px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.16)}
.hero-figures{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.hero-figure{text-align:center;padding:12px 6px;background:rgba(255,255,255,.06);border-radius:var(--r-m)}
.hero-figure b{display:block;font-size:27px;color:#ffa45c;font-weight:800;line-height:1.2}
.hero-figure span{font-size:13px;color:#bdd0e2}

/* ---------------- 优势条 ---------------- */
.adv-strip{background:var(--c-orange);color:#fff}
.adv-strip .container{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;padding:0}
.adv-strip .item{padding:26px 16px;text-align:center;position:relative}
.adv-strip .item+.item::before{content:"";position:absolute;left:0;top:22%;height:56%;width:1px;background:rgba(255,255,255,.25)}
.adv-strip b{display:block;font-size:17px;margin-bottom:5px}
.adv-strip span{font-size:13.5px;color:#ffe3ce}

/* ---------------- 卡片网格 ---------------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-5{grid-template-columns:repeat(5,1fr)}

.p-card{background:#fff;border-radius:var(--r-m);overflow:hidden;box-shadow:var(--sh-s);transition:all var(--t);display:flex;flex-direction:column}
.p-card:hover{box-shadow:var(--sh-l);transform:translateY(-5px)}
.p-card .thumb{aspect-ratio:4/3;background:linear-gradient(135deg,#e9eff6,#d6e2ee);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.p-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.p-card:hover .thumb img{transform:scale(1.06)}
.p-card .thumb .ph{font-size:13px;color:#93a5b8;font-weight:600;letter-spacing:1px;position:relative;z-index:1}

/* 视频播放角标 */
.play-badge{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:46px;height:46px;border-radius:50%;background:rgba(232,98,12,.92);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;padding-left:3px;box-shadow:0 4px 14px rgba(0,0,0,.3);z-index:2;transition:transform var(--t)}
.p-card:hover .play-badge{transform:translate(-50%,-50%) scale(1.14)}

/* 图片自适应容器 */
.img-fit{display:block;padding:0;overflow:hidden}
.img-fit img{width:100%;height:100%;object-fit:cover;display:block}

/* 视频卡片（可点击跳转B站） */
.v-card{display:flex;flex-direction:column;color:inherit;text-decoration:none}
.v-card:hover{color:inherit}
.v-card h3{color:var(--c-ink)}
.v-card:hover h3{color:var(--c-orange)}
.v-card .more{font-size:13.5px;font-weight:700;color:var(--c-blue);display:inline-flex;align-items:center;gap:5px;margin-top:auto}
.v-card:hover .more{color:var(--c-orange)}
.v-card .more::after{content:"↗";transition:transform var(--t)}
.v-card:hover .more::after{transform:translate(3px,-3px)}

/* 视频提示条 */
.v-tip{background:#eaf4ff;border-left:4px solid var(--c-blue);border-radius:0 var(--r-s) var(--r-s) 0;padding:14px 18px;margin-bottom:26px;font-size:14.5px;color:#2c4a68}
.v-tip b{color:var(--c-navy)}

/* 资讯列表缩略图 */
.n-list li{border-bottom:1px solid var(--c-line)}
.n-item a{display:flex;align-items:center;gap:16px;padding:12px 4px}
.n-item a::before{display:none}
.n-thumb{width:150px;height:113px;object-fit:cover;border-radius:var(--r-s);flex-shrink:0;background:linear-gradient(135deg,#e9eff6,#d6e2ee)}
.n-thumb--ph{display:flex;align-items:center;justify-content:center;font-size:13px;color:#93a5b8;font-weight:600}
.n-txt{flex:1;font-size:15.5px;color:var(--c-ink);font-weight:500}
.n-item a:hover .n-txt{color:var(--c-orange)}
.n-item time{margin-left:auto;font-size:13.5px;color:var(--c-mute);flex-shrink:0}

/* 资讯正文配图 */
.art-fig{margin:0 0 24px;text-align:center}
.art-fig img{width:100%;max-width:750px;height:auto;border-radius:var(--r-m);box-shadow:var(--sh-s);margin:0 auto}
.art-fig figcaption{font-size:13.5px;color:var(--c-mute);margin-top:10px}

/* 页脚二维码 */
.footer-qr{margin-top:16px;display:flex;align-items:center;gap:12px}
.footer-qr img{border-radius:6px;background:#fff;padding:3px}
.footer-qr span{font-size:12.5px;color:#9fb3c8}
.p-card .body{padding:16px 18px 18px;flex:1;display:flex;flex-direction:column}
.p-card h3{font-size:16.5px;margin-bottom:8px}
.p-card h3 a{color:var(--c-ink)}
.p-card h3 a:hover{color:var(--c-orange)}
.p-card .desc{font-size:13.5px;color:var(--c-mute);margin:0 0 12px;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.p-card .more{font-size:13.5px;font-weight:700;color:var(--c-blue);display:inline-flex;align-items:center;gap:5px;margin-top:auto}
.p-card:hover .more{color:var(--c-orange)}
.p-card .more::after{content:"→";transition:transform var(--t)}
.p-card:hover .more::after{transform:translateX(4px)}

/* ---------------- 产品分类入口 ---------------- */
.cat-entry{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.cat-box{position:relative;border-radius:var(--r-l);overflow:hidden;background:linear-gradient(120deg,var(--c-navy),var(--c-navy-2));color:#fff;padding:36px 32px;min-height:190px;display:flex;flex-direction:column;justify-content:center}
.cat-box:nth-child(2){background:linear-gradient(120deg,#1a5490,#2f8fdd)}
.cat-box h3{color:#fff;font-size:24px;margin-bottom:10px}
.cat-box p{color:#c9dbec;font-size:14.5px;margin-bottom:18px}
.cat-box .btn{align-self:flex-start}
.cat-box::after{content:"";position:absolute;right:-60px;bottom:-60px;width:200px;height:200px;border-radius:50%;background:rgba(255,255,255,.07)}

/* ---------------- 优势详情 ---------------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);padding:28px 22px;text-align:center;transition:all var(--t)}
.adv-item:hover{border-color:var(--c-orange);box-shadow:var(--sh-m)}
.adv-item .ico{width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(135deg,#e8f1fa,#d3e5f5);color:var(--c-blue);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800}
.adv-item h3{font-size:17px;margin-bottom:9px}
.adv-item p{font-size:14px;color:var(--c-mute);margin:0}

/* ---------------- 关于我们 ---------------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.about-text p{font-size:15.5px;color:var(--c-body)}
.about-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:24px 0}
.about-fact{background:var(--c-bg);border-left:3px solid var(--c-orange);border-radius:0 var(--r-s) var(--r-s) 0;padding:12px 16px}
.about-fact b{display:block;color:var(--c-navy);font-size:15px}
.about-fact span{font-size:13px;color:var(--c-mute)}
.about-visual{aspect-ratio:1/1;border-radius:var(--r-l);background:linear-gradient(135deg,#dce8f3,#c3d8ea);display:flex;align-items:center;justify-content:center;color:#7d95ad;font-size:14px;box-shadow:var(--sh-m)}

/* ---------------- 列表页通用 ---------------- */
.layout{display:grid;grid-template-columns:250px 1fr;gap:30px;align-items:start;padding:44px 0 64px}
.sidebar{background:#fff;border-radius:var(--r-m);box-shadow:var(--sh-s);overflow:hidden;position:sticky;top:88px}
.sidebar h2{font-size:17px;background:var(--c-navy);color:#fff;padding:16px 20px;margin:0}
.sidebar ul{list-style:none;margin:0;padding:8px 0}
.sidebar li{margin:0}
.sidebar a{display:block;padding:12px 20px;color:var(--c-ink);font-size:14.5px;border-left:3px solid transparent}
.sidebar a:hover,.sidebar a.active{background:var(--c-bg);border-left-color:var(--c-orange);color:var(--c-orange);font-weight:600}
.sidebar-contact{margin-top:20px;background:linear-gradient(140deg,var(--c-navy),var(--c-navy-2));border-radius:var(--r-m);padding:22px 20px;color:#dbe8f5;font-size:14px}
.sidebar-contact b{display:block;color:#fff;font-size:16px;margin-bottom:8px}
.sidebar-contact .tel{display:block;font-size:21px;font-weight:800;color:#ffa45c;margin:8px 0 4px;white-space:nowrap}

.main-col{background:#fff;border-radius:var(--r-m);box-shadow:var(--sh-s);padding:32px 34px;min-width:0}
.main-col h1{font-size:29px;padding-bottom:16px;border-bottom:2px solid var(--c-line);margin-bottom:24px}

/* 列表条目 */
.item-list{list-style:none;margin:0;padding:0}
.item-list li{margin:0;border-bottom:1px dashed var(--c-line)}
.item-list li:last-child{border-bottom:0}
.item-list a{display:flex;align-items:center;gap:14px;padding:15px 4px;color:var(--c-ink);font-size:15.5px}
.item-list a:hover{color:var(--c-orange);padding-left:10px}
.item-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-orange);flex-shrink:0}
.item-list time{margin-left:auto;font-size:13.5px;color:var(--c-mute);flex-shrink:0}

/* 分页 */
.pager{display:flex;gap:8px;justify-content:center;margin-top:30px;flex-wrap:wrap}
.pager a,.pager span{padding:8px 15px;border:1px solid var(--c-line);border-radius:var(--r-s);font-size:14px;color:var(--c-body);background:#fff}
.pager a:hover{border-color:var(--c-orange);color:var(--c-orange)}
.pager .cur{background:var(--c-orange);border-color:var(--c-orange);color:#fff;font-weight:700}

/* ---------------- 产品详情 ---------------- */
.prod-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:34px}
.prod-visual{aspect-ratio:4/3;border-radius:var(--r-m);background:linear-gradient(135deg,#e9eff6,#d6e2ee);display:flex;align-items:center;justify-content:center;color:#93a5b8;font-size:14px;box-shadow:var(--sh-s)}
.prod-meta{list-style:none;padding:0;margin:0 0 20px}
.prod-meta li{display:flex;gap:12px;padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:14.5px;margin:0}
.prod-meta li b{flex:0 0 88px;color:var(--c-navy);font-weight:600}
.prod-meta li span{color:var(--c-body)}
.prod-cta{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap}

.spec-table{margin:0 0 30px;font-size:14.5px;border:1px solid var(--c-line);border-radius:var(--r-m);overflow:hidden}
.spec-table caption{text-align:left;font-weight:700;color:var(--c-navy);padding:14px 18px;background:var(--c-bg);font-size:16px;border-bottom:1px solid var(--c-line)}
.spec-table th,.spec-table td{padding:12px 18px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:top}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.spec-table th{background:#fafbfd;color:var(--c-navy);font-weight:600;width:26%}
.spec-table td{color:var(--c-body)}

.article-body{font-size:16px;line-height:1.9}
.article-body h2{font-size:21px;margin:30px 0 14px;padding-left:13px;border-left:4px solid var(--c-orange)}
.article-body h3{font-size:17.5px;margin:22px 0 10px;color:var(--c-navy)}
.article-body p{color:var(--c-body)}
.article-body ul,.article-body ol{padding-left:24px}
.article-body li{color:var(--c-body)}
.article-body strong{color:var(--c-ink)}

.related{margin-top:38px;padding-top:26px;border-top:2px solid var(--c-line)}
.related h2{font-size:19px;margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-grid a{display:block;background:var(--c-bg);border-radius:var(--r-s);padding:14px 16px;font-size:14.5px;color:var(--c-ink);border-left:3px solid var(--c-blue)}
.related-grid a:hover{background:#fff;border-left-color:var(--c-orange);color:var(--c-orange);box-shadow:var(--sh-s)}

/* 上/下一篇 */
.prevnext{display:flex;justify-content:space-between;gap:16px;margin-top:28px;padding-top:20px;border-top:1px dashed var(--c-line);font-size:14.5px;flex-wrap:wrap}
.prevnext a{color:var(--c-blue)}
.prevnext a:hover{color:var(--c-orange)}

/* ---------------- 联系页 ---------------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{display:flex;gap:14px;padding:15px 0;border-bottom:1px dashed var(--c-line);margin:0}
.contact-list .k{flex:0 0 76px;color:var(--c-navy);font-weight:600;font-size:14.5px}
.contact-list .v{font-size:15px;color:var(--c-body)}
.contact-list .v a{font-weight:600}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:14px;color:var(--c-navy);font-weight:600;margin-bottom:6px}
.form-row input,.form-row textarea{width:100%;padding:11px 14px;border:1px solid var(--c-line);border-radius:var(--r-s);background:var(--c-bg);font-size:14.5px}
.form-row input:focus,.form-row textarea:focus{outline:2px solid rgba(22,104,184,.28);border-color:var(--c-blue);background:#fff}
.form-row textarea{min-height:110px;resize:vertical}
.form-note{font-size:13px;color:var(--c-mute);margin-top:10px}

/* 地图占位 */
.map-ph{aspect-ratio:16/10;border-radius:var(--r-m);background:linear-gradient(135deg,#dce8f3,#c3d8ea);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:#6d86a0;font-size:14px;text-align:center;padding:20px}

/* ---------------- FAQ ---------------- */
.faq{margin-top:10px}
.faq details{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);margin-bottom:12px;overflow:hidden}
.faq summary{padding:16px 20px;font-weight:600;color:var(--c-navy);cursor:pointer;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--c-orange);font-weight:400;line-height:1;flex-shrink:0}
.faq details[open] summary::after{content:"−"}
.faq details[open] summary{border-bottom:1px solid var(--c-line);background:var(--c-bg)}
.faq .ans{padding:16px 20px;font-size:14.8px;color:var(--c-body)}
.faq .ans p:last-child{margin-bottom:0}

/* ---------------- CTA 条 ---------------- */
.cta-band{background:linear-gradient(120deg,var(--c-navy),var(--c-navy-2));color:#fff;padding:48px 0}
.cta-band .container{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-band p{color:#c9dbec;margin:0;font-size:15px}
.cta-band .acts{display:flex;gap:14px;flex-wrap:wrap}

/* ---------------- 页脚 ---------------- */
.site-footer{background:#08203a;color:#9fb3c8;font-size:14px;padding:52px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:38px}
.site-footer h2{color:#fff;font-size:16.5px;margin-bottom:16px;padding-bottom:10px;position:relative}
.site-footer h2::after{content:"";position:absolute;left:0;bottom:0;width:34px;height:2px;background:var(--c-orange)}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:9px}
.site-footer a{color:#9fb3c8}
.site-footer a:hover{color:var(--c-orange)}
.footer-about p{line-height:1.85;font-size:13.8px;margin-bottom:12px}
.footer-contact li{display:flex;gap:9px;font-size:13.8px;line-height:1.7}
.footer-contact .v a{color:#ffa45c;font-weight:700;font-size:16px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:13px;color:#7d93aa}
.footer-bottom .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom a{color:#7d93aa}

/* 悬浮咨询 */
.float-bar{position:fixed;right:18px;bottom:26px;z-index:950;display:flex;flex-direction:column;gap:10px}
.float-btn{width:52px;height:52px;border-radius:50%;background:var(--c-orange);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;font-weight:600;box-shadow:var(--sh-m);line-height:1.1;text-align:center;padding:4px}
.float-btn:hover{background:var(--c-orange-d);color:#fff;transform:scale(1.08)}
.float-btn--tel{background:var(--c-blue)}

/* ---------------- 响应式 ---------------- */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:52px 0 58px}
  .hero h1{font-size:35px}
  .grid-4,.grid-5{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .about-grid,.contact-grid,.prod-grid{grid-template-columns:1fr;gap:30px}
  .nav-toggle{display:block}
  .main-nav>div>ul{display:none;flex-direction:column}
  .main-nav>div>ul.open{display:flex}
  .main-nav>div>ul>li>a{padding:13px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
  .main-nav .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border-radius:0;background:rgba(255,255,255,.06)}
  .main-nav .sub a{color:#dbe8f5;border-left-color:transparent}
  .main-nav .sub a:hover{background:rgba(255,255,255,.08);color:#fff}
}
@media (max-width:720px){
  body{font-size:15.5px}
  .topbar-slogan{font-size:12px}
  .topbar .container{min-height:34px;padding-top:6px;padding-bottom:6px}
  .header-tel{flex-direction:column;align-items:flex-end;gap:2px}
  .header-tel .t-label{display:none}
  .header-main{flex-wrap:wrap;gap:12px;padding:12px 0}
  h1{font-size:26px}
  .hero h1{font-size:27px}
  .hero-points{grid-template-columns:1fr}
  .section{padding:44px 0}
  .grid-2,.grid-3,.grid-4,.grid-5,.cat-entry,.adv-grid{grid-template-columns:1fr}
  .adv-strip .container{grid-template-columns:1fr 1fr;gap:0}
  .adv-strip .item+.item::before{display:none}
  .header-tel .t-num{font-size:19px}
  .logo-txt b{font-size:17px}
  .main-col{padding:24px 20px}
  .main-col h1{font-size:22px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .about-facts{grid-template-columns:1fr}
  .hero-figures{grid-template-columns:1fr 1fr}
  .float-bar{right:10px;bottom:14px}
}
@media print{
  .site-header,.main-nav,.topbar,.float-bar,.cta-band,.site-footer{display:none}
}