/* wy.longshengan.com 物业消防物资供应链 — 清新风格 */
:root{
  --green:#0e9f6e; --green-d:#0a7a54; --green-l:#e6f7f0;
  --teal:#0d9488; --ink:#1c2b26; --gray:#5b6b64; --line:#e3efe9;
  --bg:#ffffff; --bg-alt:#f4faf7; --radius:16px;
  --shadow:0 8px 30px rgba(14,159,110,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--green-d);text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* ---------- 顶部条 ---------- */
.topbar{background:linear-gradient(90deg,var(--green-d),var(--green));color:#fff;font-size:13px}
.topbar-in{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:7px 20px;flex-wrap:wrap}
.topbar-tel{color:#fff;font-weight:700}

/* ---------- 导航 ---------- */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.header.scrolled{box-shadow:0 4px 20px rgba(14,159,110,.12)}
.header-in{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:9px;color:var(--ink)}
.brand-mark{display:flex}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:17px;letter-spacing:.5px}
.brand-text small{font-size:11px;color:var(--green);font-weight:600}
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{padding:8px 12px;border-radius:8px;font-size:14.5px;color:var(--gray);transition:.25s;white-space:nowrap}
.nav a:hover{color:var(--green-d);background:var(--green-l)}
.nav a.active{color:var(--green-d);background:var(--green-l);font-weight:600}
.header-tel{flex-shrink:0}
.nav-toggle{display:none}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 20px;border-radius:999px;font-weight:700;font-size:15px;transition:.25s;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;box-shadow:0 6px 18px rgba(14,159,110,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(14,159,110,.42)}
.btn-ghost{background:var(--green-l);color:var(--green-d)}
.btn-ghost:hover{background:#d9f2e7}
.btn-tel{background:var(--green-l);color:var(--green-d);padding:8px 16px;font-size:14px}
.btn-tel:hover{background:#d9f2e7}
.btn-big{font-size:18px;padding:15px 34px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#f2fbf7 0%,#e8f8f1 45%,#eef9f6 100%)}
.hero-bg i{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;animation:float 14s ease-in-out infinite}
.hero-bg i:nth-child(1){width:420px;height:420px;background:#b8ecd4;top:-120px;right:8%}
.hero-bg i:nth-child(2){width:320px;height:320px;background:#c9f0e3;bottom:-100px;left:4%;animation-delay:-5s}
.hero-bg i:nth-child(3){width:220px;height:220px;background:#d9f5ea;top:30%;left:42%;animation-delay:-9s}
@keyframes float{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-26px) scale(1.06)}}
.hero-in{display:flex;align-items:center;gap:40px;padding:64px 20px 70px;position:relative}
.hero-copy{flex:1;min-width:0}
.hero-tag{display:inline-block;background:#fff;color:var(--green-d);border:1px solid #bfe8d6;border-radius:999px;padding:5px 16px;font-size:13.5px;font-weight:600;margin-bottom:18px;box-shadow:var(--shadow)}
.hero h1{font-size:clamp(28px,4.6vw,46px);line-height:1.25;font-weight:800;letter-spacing:1px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--green),var(--teal));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{margin:16px 0 24px;color:var(--gray);font-size:16.5px;max-width:640px}
.hero-sub b{color:var(--green-d)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:22px}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.hero-chips li{background:rgba(255,255,255,.85);border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:13px;color:var(--gray)}
.hero-card{flex-shrink:0;width:280px;background:#fff;border-radius:24px;box-shadow:0 18px 50px rgba(14,159,110,.18);padding:14px;transform:rotate(2deg);transition:.4s}
.hero-card:hover{transform:rotate(0) translateY(-6px)}
.hero-card img{border-radius:16px;aspect-ratio:3/4;object-fit:cover;width:100%}
.hero-card-note{display:flex;justify-content:space-between;align-items:center;padding:12px 6px 4px}
.hero-card-note b{font-size:15px}
.hero-card-note span{font-size:12px;color:var(--green)}

/* ---------- 滚动区域条 ---------- */
.area-marquee{overflow:hidden;background:var(--green-d);padding:9px 0;white-space:nowrap}
.marquee-track{display:inline-block;animation:marquee 38s linear infinite}
.marquee-track span{color:#dff5ec;font-size:13px;margin:0 14px;position:relative}
.marquee-track span::after{content:"";position:absolute;right:-14px;top:50%;width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.4);transform:translateY(-50%)}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- 区块 ---------- */
.sec{padding:72px 0}
.sec-alt{background:var(--bg-alt)}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:clamp(22px,3vw,32px);font-weight:800;letter-spacing:.5px}
.sec-head p{color:var(--gray);margin-top:8px;font-size:15.5px}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:.35s}
.adv-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#bfe8d6}
.adv-ico{width:52px;height:52px;border-radius:14px;background:var(--green-l);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:14px}
.adv-card h3{font-size:18px;margin-bottom:8px}
.adv-card p{color:var(--gray);font-size:14.5px}

/* ---------- 品类 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.35s;color:var(--ink)}
.cat-card:hover{transform:translateY(-8px);box-shadow:0 16px 44px rgba(14,159,110,.16);border-color:#bfe8d6}
.cat-img{overflow:hidden}
.cat-img img{aspect-ratio:4/3.4;object-fit:cover;width:100%;transition:transform .6s}
.cat-card:hover .cat-img img{transform:scale(1.07)}
.cat-body{padding:18px 18px 20px}
.cat-body h3{font-size:17.5px;display:flex;align-items:baseline;gap:8px}
.cat-body small{color:var(--green);font-size:12.5px;font-weight:700}
.cat-body p{color:var(--gray);font-size:13.5px;margin-top:8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 搜索与表格 ---------- */
.search-bar{margin-bottom:22px}
.search-input{position:relative;max-width:560px;margin:0 auto 16px}
.search-input svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--green)}
.search-input input{width:100%;padding:14px 48px 14px 46px;border:2px solid var(--line);border-radius:999px;font-size:15.5px;outline:none;transition:.25s;background:#fff;color:var(--ink)}
.search-input input:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(14,159,110,.12)}
.search-clear{position:absolute;right:12px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;border:none;background:var(--bg-alt);color:var(--gray);font-size:18px;cursor:pointer;display:none}
.search-clear.show{display:block}
.cat-tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.tab{border:1.5px solid var(--line);background:#fff;color:var(--gray);border-radius:999px;padding:7px 16px;font-size:13.5px;cursor:pointer;transition:.25s}
.tab em{font-style:normal;color:var(--green);font-weight:700;font-size:12px}
.tab:hover{border-color:#bfe8d6;color:var(--green-d)}
.tab.active{background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;border-color:transparent}
.tab.active em{color:#d9f5ea}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 4px 18px rgba(14,159,110,.06)}
.mtable{width:100%;border-collapse:collapse;min-width:760px}
.mtable th{background:var(--green-l);color:var(--green-d);font-size:13.5px;text-align:left;padding:13px 14px;position:sticky;top:0;white-space:nowrap}
.mtable td{padding:11px 14px;border-top:1px solid #edf5f1;font-size:14.5px;vertical-align:middle}
.mtable tbody tr{transition:background .2s}
.mtable tbody tr:hover{background:#f6fcf9}
.mtable .td-img{width:58px}
.mtable .td-img img{width:52px;height:52px;object-fit:cover;border-radius:10px;border:1px solid var(--line);cursor:zoom-in;transition:.25s;background:#fff}
.mtable .td-img img:hover{transform:scale(1.6);box-shadow:0 8px 24px rgba(0,0,0,.18);position:relative;z-index:5}
.mtable .td-img .noimg{width:52px;height:52px;border-radius:10px;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;color:#c4d9cf;font-size:20px}
.mtable .td-name{font-weight:600}
.mtable .cat-pill{display:inline-block;background:var(--green-l);color:var(--green-d);font-size:12px;border-radius:999px;padding:2px 10px;white-space:nowrap}
.mtable mark{background:#fff3bf;border-radius:3px;padding:0 2px}
.mtable .ask{display:inline-flex;align-items:center;gap:4px;background:var(--green-l);color:var(--green-d);border-radius:999px;padding:3px 12px;font-size:12.5px;font-weight:700;transition:.2s;white-space:nowrap}
.mtable .ask:hover{background:var(--green);color:#fff}
.table-empty{text-align:center;color:var(--gray);padding:34px 10px;background:#fff;border-radius:var(--radius);margin-top:14px}
.table-tip{text-align:center;color:var(--gray);font-size:13.5px;margin-top:18px}

/* ---------- 方案 ---------- */
.plan-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-bottom:26px;box-shadow:0 4px 18px rgba(14,159,110,.05)}
.plan-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.plan-head h3{font-size:19px;color:var(--green-d)}
.plan-tag{background:var(--green-l);color:var(--green-d);font-size:12.5px;border-radius:999px;padding:4px 13px;font-weight:600}
.plan-card .table-wrap{box-shadow:none;border:1px solid #edf5f1}
.plan-card .mtable{min-width:640px}

/* ---------- 服务区域 ---------- */
.sec-area{background:linear-gradient(160deg,#f0faf6,#eaf6f2)}
.area-block{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;margin-bottom:20px}
.area-block h3{font-size:17.5px;margin-bottom:16px}
.area-tags{display:flex;flex-wrap:wrap;gap:9px;list-style:none}
.area-tags li{background:var(--green-l);color:var(--green-d);border-radius:999px;padding:5px 15px;font-size:13.5px;font-weight:600;transition:.25s;cursor:default}
.area-tags li:hover{background:var(--green);color:#fff;transform:translateY(-2px)}
.area-tags-b li{background:#eef4f1;color:var(--gray)}
.area-tags-b li:hover{background:var(--teal);color:#fff}
.area-note{margin-top:16px;color:var(--gray);font-size:13.5px}

/* ---------- 流程 ---------- */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.steps li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;text-align:center;transition:.35s;position:relative;overflow:hidden}
.steps li::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--green),var(--teal));transform:scaleX(0);transform-origin:left;transition:.4s}
.steps li:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.steps li:hover::before{transform:scaleX(1)}
.steps b{display:block;font-size:17px;color:var(--green-d);margin-bottom:8px}
.steps span{color:var(--gray);font-size:13.5px}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto}
details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:.25s}
details[open]{border-color:#bfe8d6;box-shadow:var(--shadow)}
summary{cursor:pointer;padding:17px 22px;font-weight:700;font-size:15.5px;list-style:none;position:relative;padding-right:48px;user-select:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;background:var(--green-l);color:var(--green-d);display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:400;transition:.3s}
details[open] summary::after{content:"−";background:var(--green);color:#fff;transform:translateY(-50%) rotate(180deg)}
details p{padding:0 22px 18px;color:var(--gray);font-size:14.5px}

/* ---------- CTA ---------- */
.sec-cta{background:linear-gradient(150deg,#0b7a55,#0e9f6e 55%,#12b184);color:#fff}
.cta-card{max-width:760px;margin:0 auto;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.25);border-radius:22px;padding:46px 40px;text-align:center;backdrop-filter:blur(6px)}
.cta-card h2{font-size:clamp(22px,3vw,30px);margin-bottom:10px}
.cta-card > p{color:#d9f5ea;margin-bottom:26px}
.cta-info{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-bottom:28px;text-align:left}
.cta-item{background:rgba(255,255,255,.12);border-radius:12px;padding:14px 18px}
.cta-item span{display:block;font-size:12.5px;color:#b9e8d5;margin-bottom:3px}
.cta-item b{font-size:16.5px}
.cta-tel{color:#fff;font-size:20px;font-weight:800;letter-spacing:1px}
.cta-tel:hover{text-decoration:underline}

/* ---------- 页脚 ---------- */
.footer{background:#0c2e22;color:#a9c5b8;padding:40px 0 90px;text-align:center;font-size:13.5px}
.footer b{color:#fff}
.footer p{margin-bottom:9px}
.footer a{color:#7fd4ae}
.footer-links{margin-top:4px}
.copy{opacity:.55;font-size:12.5px;margin-top:14px}

/* ---------- 移动端呼叫条 & 回顶 ---------- */
.m-callbar{position:fixed;left:0;right:0;bottom:0;z-index:90;display:none;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);border-top:1px solid var(--line);backdrop-filter:blur(8px)}
.m-call-btn{display:flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;font-weight:800;font-size:16px;border-radius:999px;padding:13px;box-shadow:0 6px 20px rgba(14,159,110,.4)}
.backtop{position:fixed;right:18px;bottom:88px;z-index:80;width:44px;height:44px;border-radius:50%;border:none;background:#fff;color:var(--green-d);font-size:19px;box-shadow:0 6px 20px rgba(0,0,0,.14);cursor:pointer;opacity:0;pointer-events:none;transition:.3s}
.backtop.show{opacity:1;pointer-events:auto}
.backtop:hover{background:var(--green);color:#fff}

/* ---------- 图片放大层 ---------- */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(10,30,22,.82);display:none;align-items:center;justify-content:center;padding:24px;cursor:zoom-out}
.lightbox.show{display:flex}
.lightbox img{max-width:min(560px,90vw);max-height:82vh;border-radius:18px;background:#fff;padding:10px;animation:pop .3s}
.lightbox figcaption{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:#d9f5ea;font-size:14.5px}
@keyframes pop{from{transform:scale(.85);opacity:0}to{transform:scale(1);opacity:1}}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
.delay-1{transition-delay:.12s}.delay-2{transition-delay:.24s}.delay-3{transition-delay:.36s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .marquee-track,.hero-bg i{animation:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1000px){
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .topbar span:first-child{display:none}
  .topbar-in{justify-content:center}
  .nav{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 18px 16px;gap:2px;box-shadow:0 14px 30px rgba(0,0,0,.10);transform:translateY(-12px);opacity:0;pointer-events:none;transition:.3s;border-bottom:1px solid var(--line)}
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:12px;border-bottom:1px solid #f2f8f5}
  .header-tel{display:none}
  .nav-toggle{display:flex;flex-direction:column;gap:5px;margin-left:auto;background:none;border:none;cursor:pointer;padding:6px}
  .nav-toggle span{width:22px;height:2.5px;border-radius:2px;background:var(--green-d);transition:.3s}
  .nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  .hero-in{flex-direction:column;padding:44px 20px 52px;gap:30px}
  .hero-card{width:220px;transform:none}
  .hero-actions{justify-content:center}
  .hero-chips{justify-content:center}
  .sec{padding:52px 0}
  .m-callbar{display:block}
  .backtop{bottom:80px;right:14px}
  .cta-card{padding:34px 22px}
  .cta-info{grid-template-columns:1fr}
  .area-block{padding:20px 18px}
  .plan-card{padding:18px 14px}
  .footer{padding-bottom:110px}
}
@media (max-width:480px){
  .adv-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .hero h1{font-size:27px}
  .btn-big{width:100%;justify-content:center}
}