/* 绚丽遮阳 · 站点样式
   Light theme, mobile-first, no external dependencies */

:root{
  --ink:#0F2231;
  --ink-2:#22384a;
  --body:#4C5E6B;
  --muted:#7A8C99;
  --brand:#0B5A87;
  --brand-2:#0E7BA8;
  --brand-soft:#EAF3F8;
  --accent:#DE6F2A;
  --accent-dark:#C35C1D;
  --line:#E2E9EE;
  --line-2:#EDF1F4;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FA;
  --bg-deep:#0C2231;
  --radius:4px;
  --radius-lg:10px;
  --shadow-sm:0 1px 2px rgba(15,34,49,.06),0 4px 16px rgba(15,34,49,.05);
  --shadow-md:0 10px 40px rgba(15,34,49,.10);
  --wrap:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--body);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.28;letter-spacing:-.2px}
h1{font-size:clamp(28px,4vw,44px)}
h2{font-size:clamp(23px,2.6vw,33px)}
h3{font-size:19px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--radius);
  font-size:16px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),background .2s,color .2s,box-shadow .2s;
}
.btn svg{width:18px;height:18px;flex:0 0 auto}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(222,111,42,.25)}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-line{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-line:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{height:42px;padding:0 18px;font-size:15px}

/* ---------- top bar + header ---------- */
.topbar{background:var(--bg-deep);color:#B7C6D0;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.topbar a{color:#B7C6D0}
.topbar a:hover{color:#fff}
.topbar .tb-right{display:flex;gap:18px;align-items:center}
.topbar .tb-addr{display:none}.topbar .tb-left{display:none}
@media(min-width:860px){.topbar .tb-addr{display:inline}.topbar .tb-left{display:block}}

.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:saturate(180%) blur(8px)}
.header .wrap{display:flex;align-items:center;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:44px;height:44px;flex:0 0 auto}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.5px}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:1.6px;margin-top:3px}
.nav{display:none;margin-left:auto}
@media(min-width:1000px){.nav{display:block}}
.nav>ul{display:flex;gap:4px}
.nav>ul>li{position:relative}
.nav>ul>li>a{display:block;padding:0 14px;line-height:74px;font-size:15.5px;font-weight:600;color:var(--ink-2);position:relative}
.nav>ul>li>a::after{content:"";position:absolute;left:14px;right:14px;bottom:20px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease)}
.nav>ul>li:hover>a,.nav>ul>li.on>a{color:var(--brand)}
.nav>ul>li:hover>a::after,.nav>ul>li.on>a::after{transform:scaleX(1)}
.mega{
  position:absolute;top:100%;left:50%;transform:translate(-50%,8px);
  width:min(760px,86vw);background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);padding:18px;opacity:0;visibility:hidden;transition:.2s var(--ease);
}
.nav li:hover .mega{opacity:1;visibility:visible;transform:translate(-50%,0)}
.mega ul{display:grid;grid-template-columns:repeat(4,1fr);gap:2px}
.mega a{display:block;padding:9px 10px;border-radius:var(--radius);font-size:14.5px;color:var(--ink-2)}
.mega a:hover{background:var(--brand-soft);color:var(--brand)}
.header-cta{display:none;align-items:center;gap:12px;margin-left:8px}
@media(min-width:1000px){.header-cta{display:flex}}
.header-tel{display:flex;flex-direction:column;line-height:1.1;text-align:right}
.header-tel span{font-size:11.5px;color:var(--muted);letter-spacing:.5px}
.header-tel strong{font-size:19px;color:var(--brand);font-weight:700;letter-spacing:.2px}
.burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;margin-left:auto;background:none;border:0;cursor:pointer}
.burger span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:.2s var(--ease)}
@media(min-width:1000px){.burger{display:none}}
body.nav-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{display:none;position:fixed;inset:74px 0 0;background:#fff;z-index:55;overflow:auto;padding:10px 0 90px}
body.nav-open .drawer{display:block}
.drawer a{display:block;padding:14px 22px;border-bottom:1px solid var(--line-2);color:var(--ink-2);font-weight:600}
.drawer .d-sub a{padding:12px 22px 12px 38px;font-weight:400;color:var(--body);font-size:15px}
.drawer .d-title{padding:16px 22px 8px;font-size:12.5px;letter-spacing:1.4px;color:var(--muted)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg-deep);color:#fff}
.hero::after{content:"";position:absolute;inset:0;background:
  radial-gradient(900px 420px at 78% 12%,rgba(14,123,168,.42),transparent 62%),
  radial-gradient(600px 300px at 12% 88%,rgba(222,111,42,.18),transparent 60%);pointer-events:none}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:34px;padding-top:52px;padding-bottom:56px}
@media(min-width:960px){.hero .wrap{grid-template-columns:1.02fr .98fr;gap:48px;padding-top:78px;padding-bottom:86px;align-items:center}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border:1px solid rgba(255,255,255,.24);border-radius:100px;font-size:12.5px;letter-spacing:1.2px;color:#CFE1EC}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero h1{color:#fff;margin:18px 0 0;font-size:clamp(30px,4.2vw,50px);letter-spacing:-.5px}
.hero h1 em{font-style:normal;color:#F2A465}
.hero .lead{margin:18px 0 0;color:#C6D6E1;font-size:16.5px;max-width:34em}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero .facts{display:flex;flex-wrap:wrap;gap:26px 34px;margin-top:38px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.hero .facts div{display:flex;flex-direction:column}
.hero .facts b{color:#fff;font-size:22px;letter-spacing:.2px}
.hero .facts span{color:#9DB2C0;font-size:12.5px;letter-spacing:.6px;margin-top:2px}
.hero-media{position:relative}
.hero-media .shot{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.35);aspect-ratio:4/3;background:#16394d}
.hero-media .shot img{width:100%;height:100%;object-fit:cover}
.hero-media .badge{
  position:absolute;left:-10px;bottom:22px;background:#fff;color:var(--ink);border-radius:8px;
  padding:12px 16px;box-shadow:var(--shadow-md);display:flex;gap:10px;align-items:center;font-size:13.5px;line-height:1.35;
}
.hero-media .badge svg{width:26px;height:26px;color:var(--brand)}
.hero-media .badge b{display:block;font-size:14.5px}
.hero-media .badge span{color:var(--muted);font-size:12px}
@media(max-width:600px){.hero-media .badge{left:8px;bottom:10px;padding:10px 12px}}

/* ---------- section basics ---------- */
.sec{padding:64px 0}
@media(min-width:860px){.sec{padding:88px 0}}
.sec-soft{background:var(--bg-soft)}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-head .kicker{display:inline-block;font-size:12.5px;letter-spacing:2px;color:var(--brand);font-weight:600;text-transform:uppercase}
.sec-head h2{margin:10px 0 0}
.sec-head p{margin:14px 0 0;color:var(--body);font-size:16px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px}

/* ---------- usp ---------- */
.usp{background:#fff;border-bottom:1px solid var(--line)}
.usp ul{display:grid;grid-template-columns:1fr;gap:0}
@media(min-width:700px){.usp ul{grid-template-columns:1fr 1fr}}
@media(min-width:1000px){.usp ul{grid-template-columns:repeat(4,1fr)}}
.usp li{padding:24px 22px;border-top:1px solid var(--line);display:flex;gap:14px}
@media(min-width:1000px){.usp li{border-top:0;border-left:1px solid var(--line)}.usp li:first-child{border-left:0}}
.usp .ic{flex:0 0 auto;width:38px;height:38px;border-radius:8px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center}
.usp .ic svg{width:20px;height:20px}
.usp b{display:block;color:var(--ink);font-size:15.5px;margin-bottom:2px}
.usp span{font-size:13.5px;color:var(--body);line-height:1.6}

/* ---------- category grid ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(min-width:640px){.cat-grid{grid-template-columns:repeat(3,1fr);gap:18px}}
@media(min-width:1000px){.cat-grid{grid-template-columns:repeat(4,1fr);gap:22px}}
.cat-card{position:relative;display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.24s var(--ease)}
.cat-card:hover{border-color:#CFDDE6;box-shadow:var(--shadow-md);transform:translateY(-3px)}
.cat-card .ph{aspect-ratio:4/3;background:var(--bg-soft);overflow:hidden}
.cat-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.cat-card:hover .ph img{transform:scale(1.05)}
.cat-card .tx{padding:14px 16px 16px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.cat-card .tx b{color:var(--ink);font-size:15.5px;font-weight:600;display:block}
.cat-card .tx small{display:block;color:var(--muted);font-size:12px;letter-spacing:.4px;margin-top:2px}
.cat-card .tx svg{width:16px;height:16px;color:var(--muted);flex:0 0 auto;transition:.2s}
.cat-card:hover .tx svg{color:var(--accent);transform:translateX(3px)}

/* ---------- product grid ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
@media(min-width:640px){.prod-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
@media(min-width:1000px){.prod-grid{grid-template-columns:repeat(4,1fr);gap:22px}}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.22s var(--ease)}
.prod-card:hover{box-shadow:var(--shadow-md);border-color:#CFDDE6}
.prod-card .ph{position:relative;aspect-ratio:1/1;background:var(--bg-soft);overflow:hidden}
.prod-card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.prod-card:hover .ph img{transform:scale(1.04)}
.prod-card .tx{padding:13px 14px 15px}
.prod-card .tx small{color:var(--muted);font-size:11.5px;letter-spacing:.6px;display:block}
.prod-card .tx b{display:block;color:var(--ink);font-size:15px;font-weight:600;margin-top:3px;line-height:1.45}

/* ---------- split / feature ---------- */
.split{display:grid;grid-template-columns:1fr;gap:34px;align-items:center}
@media(min-width:900px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split .media{border-radius:var(--radius-lg);overflow:hidden;background:#16394d;aspect-ratio:4/3}
.split .media img{width:100%;height:100%;object-fit:cover}
.split h2{margin-bottom:14px}
.chk{display:grid;gap:16px;margin-top:24px}
.chk li{display:flex;gap:12px}
.chk .dot{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;margin-top:2px}
.chk .dot svg{width:12px;height:12px}
.chk b{display:block;color:var(--ink);font-size:15.5px;margin-bottom:2px}
.chk span{font-size:14.5px;color:var(--body);line-height:1.65}

/* ---------- process ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:16px;counter-reset:step}
@media(min-width:700px){.steps{grid-template-columns:repeat(2,1fr);gap:20px}}
@media(min-width:1000px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 20px}
.step .n{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:1px}
.step b{display:block;margin:8px 0 6px;font-size:17px;color:var(--ink)}
.step p{margin:0;font-size:14.5px;color:var(--body)}

/* ---------- FAQ ---------- */
.faq{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:880px){.faq{grid-template-columns:1fr 1fr;gap:16px}}
.faq details{border:1px solid var(--line);border-radius:14px;background:#fff;padding:0 20px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq details:hover{border-color:#BFD9E8}
.faq details[open]{border-color:#9FC6DC;box-shadow:0 12px 28px rgba(11,90,135,.09)}
.faq summary{
  list-style:none;cursor:pointer;padding:18px 38px 18px 0;position:relative;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.55;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:8px;top:24px;width:9px;height:9px;
  border-right:2px solid #DE6F2A;border-bottom:2px solid #DE6F2A;
  transform:rotate(45deg);transition:.24s var(--ease);
}
.faq details[open] summary::after{transform:rotate(-135deg);top:28px}
.faq .a{padding:0 0 20px;color:var(--body);font-size:14.5px;line-height:1.85}

/* ---------- detail explainer panel ---------- */
.expl{display:grid;grid-template-columns:1fr;gap:26px;background:#F2F7FA;border-radius:18px;padding:32px 26px;margin-top:56px}
@media(min-width:880px){.expl{grid-template-columns:1.15fr .85fr;gap:48px;padding:42px 46px;align-items:center}}
.expl-kicker{display:inline-block;font-size:12px;letter-spacing:2.5px;color:#DE6F2A;font-weight:700;margin-bottom:10px}
.expl h2{font-size:22px;margin:0}
.expl p{margin:12px 0 0;color:var(--body);font-size:15px;line-height:1.9}
.expl .chk{margin-top:20px;gap:13px}
.expl-fig{margin:0;min-width:0}
.expl-fig img{width:100%;height:auto;border-radius:14px;display:block;box-shadow:0 14px 30px rgba(11,90,135,.14)}
.expl-fig figcaption{font-size:12.5px;color:var(--muted);margin-top:10px;text-align:center;letter-spacing:.3px}

/* ---------- cta band ---------- */
.cta-band{background:none;padding:10px 0 64px}
.cta-band .wrap{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(120deg,#0B5A87 0%,#0E7BA8 62%,#128CB6 100%);
  border-radius:20px;display:flex;flex-direction:column;gap:22px;
  padding:44px 32px;box-shadow:0 18px 40px rgba(11,90,135,.22);
}
.cta-band .wrap::after{content:"";position:absolute;right:-80px;top:-80px;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.06)}
.cta-band .wrap::before{content:"";position:absolute;left:-70px;bottom:-130px;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.05)}
.cta-band .wrap>*{position:relative;z-index:2}
@media(min-width:900px){.cta-band .wrap{flex-direction:row;align-items:center;justify-content:space-between;padding:52px 56px}}
.cta-band h2{color:#fff;margin:0 0 8px}
.cta-band p{margin:0;color:#CDE2EE;font-size:15.5px}
.cta-band .tel{display:flex;align-items:center;gap:14px}
.cta-band .tel .ic{width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.14);display:grid;place-items:center}
.cta-band .tel .ic svg{width:24px;height:24px;color:#fff}
.cta-band .tel b{display:block;font-size:clamp(24px,3vw,32px);letter-spacing:.5px;line-height:1.1}
.cta-band .tel span{font-size:12.5px;letter-spacing:1px;color:#BFD6E4}

/* ---------- footer ---------- */
.footer{background:var(--bg-deep);color:#98AEBC;font-size:14px;padding:56px 0 0}
.footer .cols{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:760px){.footer .cols{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer h4{color:#fff;font-size:14.5px;letter-spacing:1px;margin-bottom:16px;font-weight:600}
.footer a{color:#98AEBC}
.footer a:hover{color:#fff}
.footer .f-about p{margin:14px 0 0;line-height:1.8;font-size:13.5px;color:#8AA0AE}
.footer .f-brand{display:flex;align-items:center;gap:10px;color:#fff}
.footer .f-brand .brand-mark{width:38px;height:38px}
.footer .f-brand b{font-size:17px;letter-spacing:.5px;color:#fff}
.footer .f-brand span{display:block;font-size:11px;letter-spacing:1.4px;color:#7E96A5}
.footer ul li{margin-bottom:10px}
.footer .f-contact-box{background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.09);border-radius:16px;padding:22px 22px 20px;margin-top:-4px}
.footer .f-tel{display:flex;align-items:center;gap:12px;padding:13px 15px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);margin-bottom:16px;transition:border-color .2s}
.footer .f-tel:hover{border-color:rgba(242,164,101,.55)}
.footer .f-tel .ic{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#F2A465,#DE6F2A);display:grid;place-items:center;flex:0 0 auto}
.footer .f-tel .ic svg{width:20px;height:20px;color:#fff}
.footer .f-tel b{display:block;font-size:20px;color:#fff;letter-spacing:.5px;line-height:1.2}
.footer .f-tel .tx>span{display:block;font-size:12px;color:#8AA0AE;margin-top:3px}
.footer .f-tel:hover b{color:#F2A465}
.footer .f-btn{display:inline-flex;align-items:center;gap:6px;margin-top:14px;padding:9px 16px;border-radius:10px;background:linear-gradient(135deg,#F2A465,#DE6F2A);color:#fff;font-weight:600;font-size:13.5px;letter-spacing:.5px}
.footer .f-btn:hover{color:#fff;filter:brightness(1.08)}
.footer .f-btn svg{width:15px;height:15px}
.footer .f-contact li{display:flex;gap:10px;margin-bottom:12px;line-height:1.65}
.footer .f-contact svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px;color:#6E8A9B}
.footer .f-contact b{color:#fff;font-weight:600}
.copy{margin-top:44px;border-top:1px solid rgba(255,255,255,.09);padding:20px 0 26px;font-size:12.5px;color:#75909F;display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between}
.copy a{color:#75909F}
.copy a:hover{color:#fff}

/* ---------- 服务区域 ---------- */
.area-chips{display:flex;flex-wrap:wrap;gap:10px}
.area-chips a{display:inline-flex;align-items:center;gap:5px;padding:9px 15px;border:1px solid #DCE7EF;border-radius:24px;background:#fff;font-size:14.5px;color:#26485F;transition:.18s}
.area-chips a:hover{border-color:#0B5A87;color:#0B5A87;background:#F6FBFE}
.area-chips a span{color:#8FA3B2;font-size:12px}
.area-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.area-card{display:block;border:1px solid #E3EBF2;border-radius:12px;padding:18px 18px 16px;background:#fff;transition:.18s}
.area-card:hover{border-color:#BBD6E7;box-shadow:0 10px 26px rgba(11,90,135,.08)}
.area-card b{display:block;font-size:16.5px;color:#123347;margin-bottom:6px}
.area-card p{margin:0;font-size:13px;color:#6D8090;line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.area-card i{display:block;margin-top:10px;font-style:normal;font-size:12.5px;color:#0B5A87}
.area-links{display:flex;flex-wrap:wrap;gap:8px;font-size:13.5px;margin-top:12px}
.area-links a{color:#0B5A87;padding:5px 11px;background:#F1F7FB;border-radius:6px}
.area-links a:hover{background:#E2F0F9}
.area-strip{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#8FA7B6}
.area-strip b{color:#C0D3DF;font-weight:500}
.area-strip a{color:#9DB2C0;padding:3px 9px;border:1px solid rgba(255,255,255,.12);border-radius:20px}
.area-strip a:hover{color:#fff;border-color:rgba(255,255,255,.4)}
.area-strip a.more{color:#fff;border-color:rgba(255,255,255,.35)}

/* ---------- page hero (inner) ---------- */
.page-hero{background:linear-gradient(180deg,#0C2231 0%,#123347 100%);color:#fff;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(700px 320px at 82% 0,rgba(14,123,168,.36),transparent 65%)}
.page-hero .wrap{position:relative;z-index:2;padding-top:38px;padding-bottom:40px}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:#9DB2C0;align-items:center}
.crumb a{color:#9DB2C0}
.crumb a:hover{color:#fff}
.crumb span{color:#6F8A9B}
.page-hero h1{color:#fff;margin:14px 0 0;font-size:clamp(26px,3.4vw,38px)}
.page-hero .sub{margin:12px 0 0;color:#C0D3DF;font-size:15.5px;max-width:52em}
/* 正文内已有唯一 H1 的页面（如产品详情）只留面包屑条 */
.page-hero-bare .wrap{padding-top:22px;padding-bottom:22px}

/* ---------- layout: content + sidebar ---------- */
.layout{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:960px){.layout{grid-template-columns:280px 1fr;gap:48px}}
.side{display:flex;flex-direction:column;gap:18px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.side-box .h{background:var(--bg-soft);padding:14px 18px;font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.5px;border-bottom:1px solid var(--line)}
.side-nav a{display:flex;justify-content:space-between;align-items:center;padding:12px 18px;border-bottom:1px solid var(--line-2);font-size:14.5px;color:var(--ink-2)}
.side-nav a:last-child{border-bottom:0}
.side-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.side-nav a.on{background:var(--brand-soft);color:var(--brand);font-weight:600}
.side-nav a span{color:var(--muted);font-size:12px}
.side-contact{padding:18px}
.side-contact b{display:block;color:var(--ink);font-size:15px;margin-bottom:4px}
.side-contact .tel{font-size:21px;font-weight:700;color:var(--brand);letter-spacing:.3px;display:block;margin:6px 0 10px}
.side-contact p{margin:0 0 12px;font-size:13.5px;line-height:1.7}

/* ---------- article ---------- */
.article{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 22px}
@media(min-width:760px){.article{padding:38px 44px}}
.article h1{margin-bottom:14px}
.article .meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:13px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:24px}
.prose{font-size:16px;line-height:1.9;color:var(--ink-2)}
.prose h2{font-size:21px;margin:32px 0 12px}
.prose h3{font-size:18px;margin:26px 0 10px}
.prose p{margin:0 0 16px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:6px 0}
.prose img{border-radius:8px;margin:18px 0}
.prose table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{background:var(--bg-soft);color:var(--ink);font-weight:600}
.prose blockquote{margin:20px 0;padding:14px 18px;background:var(--bg-soft);border-left:3px solid var(--brand);color:var(--ink-2);font-size:15px}

/* ---------- product detail ---------- */
.pd{display:grid;grid-template-columns:1fr;gap:30px}
@media(min-width:900px){.pd{grid-template-columns:1.05fr .95fr;gap:46px}}
.pd-gallery .main{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-soft)}
.pd-gallery .main img{width:100%;aspect-ratio:4/3;object-fit:cover}
.pd h1{font-size:clamp(24px,3vw,32px);margin-bottom:10px}
.pd .sum{color:var(--body);font-size:15.5px}
.spec{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;margin-top:22px}
.spec dl{display:grid;grid-template-columns:96px 1fr;margin:0}
.spec dt{background:var(--bg-soft);padding:12px 14px;font-size:14px;color:var(--muted);border-bottom:1px solid var(--line-2)}
.spec dd{margin:0;padding:12px 14px;font-size:14.5px;color:var(--ink-2);border-bottom:1px solid var(--line-2)}
.spec dl:last-child dt,.spec dl:last-child dd{border-bottom:0}
.pd-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* ---------- gallery ---------- */
.gal{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:760px){.gal{grid-template-columns:repeat(3,1fr);gap:16px}}
.gal a{display:block;border-radius:8px;overflow:hidden;background:var(--bg-soft);aspect-ratio:4/3}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.gal a:hover img{transform:scale(1.05)}

/* ---------- pagination ---------- */
.pager{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:36px}
.pager a,.pager span{min-width:40px;height:40px;padding:0 12px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:6px;font-size:14px;color:var(--ink-2);background:#fff}
.pager .cur{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.pager a:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- form ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px}
@media(min-width:760px){.form-card{padding:34px 38px}}
.form-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:700px){.form-grid{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;color:var(--ink);font-weight:600}
.field label i{color:var(--accent);font-style:normal}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:6px;font-size:15px;
  font-family:inherit;color:var(--ink);background:#fff;transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(14,123,168,.12)}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px}

/* ---------- misc ---------- */
.notice{background:#FFF6EF;border:1px solid #F6DCC8;border-radius:8px;padding:14px 16px;font-size:14px;color:#8A4B16;margin:18px 0}
.tagrow{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tagrow span{display:inline-flex;align-items:center;height:30px;padding:0 12px;background:var(--brand-soft);color:var(--brand);border-radius:100px;font-size:13px}
.related{margin-top:12px}
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:70;display:grid;grid-template-columns:1fr 1fr;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(15,34,49,.08)}
.mobile-cta a{display:flex;align-items:center;justify-content:center;gap:8px;height:56px;font-size:15.5px;font-weight:600}
.mobile-cta a:first-child{color:var(--brand)}
.mobile-cta a:last-child{background:var(--accent);color:#fff}
.mobile-cta svg{width:18px;height:18px}
@media(min-width:1000px){.mobile-cta{display:none}}
@media(max-width:999px){body{padding-bottom:56px}}
.to-top{position:fixed;right:14px;bottom:72px;width:42px;height:42px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);display:grid;place-items:center;color:var(--ink);cursor:pointer;opacity:0;pointer-events:none;transition:.2s;z-index:65}
.to-top.show{opacity:1;pointer-events:auto}
@media(min-width:1000px){.to-top{bottom:24px}}
.to-top svg{width:18px;height:18px}

/* ---------- 移动端简化：隐藏低价值长区块，缩短页脚 ---------- */
@media(max-width:759px){
  .usp{display:none}
  .sec-gallery{display:none}
  .footer{padding-top:38px}
  .footer .cols > div:nth-child(2),
  .footer .cols > div:nth-child(3){display:none}
  .footer .f-about p{margin-top:10px;font-size:13px}
  .footer .f-contact-box{margin-top:0}
  .copy{margin-top:28px;flex-direction:column;gap:6px}
}

/* ---------- 移动端底部：微信咨询 ---------- */
.m-wx-btn{display:flex;align-items:center;justify-content:center;gap:8px;height:56px;width:100%;border:0;background:var(--accent);color:#fff;font-size:15.5px;font-weight:600;font-family:inherit;cursor:pointer}
.m-wx-btn svg{width:18px;height:18px}
.m-wx-btn:active{filter:brightness(1.06)}

/* ---------- 微信咨询弹层 ---------- */
.wx-modal{position:fixed;inset:0;z-index:90;display:grid;place-items:center}
.wx-modal[hidden]{display:none}
.wx-mask{position:absolute;inset:0;background:rgba(10,25,36,.62)}
.wx-card{position:relative;z-index:1;width:min(320px,86vw);background:#fff;border-radius:18px;padding:28px 22px 20px;text-align:center;box-shadow:0 24px 60px rgba(10,25,36,.35)}
.wx-x{position:absolute;top:6px;right:12px;border:0;background:none;font-size:24px;color:#9AB0BE;cursor:pointer;line-height:1;padding:4px}
.wx-ic{display:inline-grid;place-items:center;width:56px;height:56px;border-radius:50%;background:#EAF9F0}
.wx-ic svg{width:32px;height:32px;color:#22B358}
.wx-card b{display:block;font-size:18px;color:var(--ink);margin-top:12px}
.wx-card p{font-size:13.5px;color:var(--muted);line-height:1.75;margin:8px 0 16px;text-align:left}
.wx-num{font-size:24px;font-weight:800;color:var(--brand);letter-spacing:1px;background:var(--brand-soft);border-radius:10px;padding:11px 10px}
.wx-copy{margin-top:14px;width:100%;height:46px;border:0;border-radius:10px;background:linear-gradient(135deg,#F2A465,#DE6F2A);color:#fff;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer}
.wx-copy:active{filter:brightness(1.06)}
.wx-tip{display:block;margin-top:12px;font-size:12px;color:var(--muted);line-height:1.6}
.wx-alt{display:block;margin-top:14px;font-size:12.5px;color:var(--brand);font-weight:600}

/* ---------- 分类页「结构特点」图文面板 ---------- */
.catfeat{display:grid;grid-template-columns:1fr;margin-top:52px;background:var(--bg-soft);border:1px solid var(--line-2);border-radius:16px;overflow:hidden}
@media(min-width:900px){.catfeat{grid-template-columns:1.15fr .85fr;align-items:stretch}}
.cf-body{padding:34px 34px 30px}
.cf-body h2{font-size:24px;margin:6px 0 0;color:var(--ink)}
.cf-kicker{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:2.5px;color:var(--accent);text-transform:uppercase}
.catfeat .chk{margin-top:18px;gap:13px}
.catfeat .tagrow{margin-top:18px}
.cf-media{position:relative;min-height:220px}
.cf-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
@media(max-width:899px){.cf-media{min-height:210px}}