/* ==========================================
   厦门天达时环保科技 - 全站样式
   深色科技风 · 响应式 · 工业专业感
   ========================================== */
:root{
  --bg:#050d1f; --bg2:#081630; --bg3:#0a1c38;
  --card:rgba(13,32,64,.72); --card-hover:rgba(16,42,82,.85);
  --line:rgba(64,180,255,.16); --line2:rgba(64,180,255,.3);
  --cyan:#00d4ff; --cyan2:#7ce7ff; --blue:#1e6fff;
  --green:#22d38a; --green2:#0fae6e;
  --text:#e8f2ff; --dim:#8fb3d9; --dim2:#5c7fa6;
  --grad:linear-gradient(135deg,#00d4ff,#1e6fff);
  --grad-green:linear-gradient(135deg,#22d38a,#0fae6e);
  --glow:0 0 24px rgba(0,212,255,.35);
  --shadow:0 8px 30px rgba(0,0,0,.35);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;
  background:var(--bg); color:var(--text); line-height:1.8;
  -webkit-tap-highlight-color:transparent; overflow-x:hidden;
}
a{text-decoration:none;color:inherit;transition:.25s}
img{max-width:100%;height:auto;display:block;border-radius:10px;background:rgba(255,255,255,.03)}
ul,ol{list-style:none}
/* 背景网格 + 光晕 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(ellipse 60% 40% at 15% 0%,rgba(30,111,255,.22),transparent),
    radial-gradient(ellipse 50% 40% at 90% 15%,rgba(0,212,255,.13),transparent),
    radial-gradient(ellipse 70% 50% at 50% 100%,rgba(0,60,140,.18),transparent);
  background-color:var(--bg);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.3;
  background-image:
    linear-gradient(rgba(64,180,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(64,180,255,.05) 1px,transparent 1px);
  background-size:46px 46px;
}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== 顶栏 ===== */
.topbar{background:linear-gradient(90deg,rgba(0,60,140,.55),rgba(0,120,200,.3));border-bottom:1px solid var(--line);font-size:.82em;padding:8px 0}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px}
.topbar span{color:var(--dim)}
.topbar a{color:var(--cyan);font-weight:600}

/* ===== 导航 ===== */
.navbar{position:sticky;top:0;z-index:999;background:rgba(5,13,31,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.navbar .wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo .mark{width:42px;height:42px;border-radius:10px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1em;color:#04122b;box-shadow:var(--glow)}
.logo .txt{font-size:1.12em;font-weight:800;letter-spacing:.5px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.logo .txt small{display:block;font-size:.44em;font-weight:400;letter-spacing:2.5px;color:var(--dim);-webkit-text-fill-color:var(--dim);margin-top:1px}
.nav{display:flex;align-items:center;gap:2px}
.nav>li{position:relative}
.nav>li>a{padding:9px 15px;font-size:.92em;color:var(--dim);border-radius:8px;display:block;white-space:nowrap}
.nav>li>a:hover,.nav>li>a.on{color:var(--cyan2);background:rgba(0,212,255,.08)}
.nav .tel{background:var(--grad);color:#04122b!important;font-weight:700;box-shadow:var(--glow);padding:9px 18px!important}
.nav .tel:hover{filter:brightness(1.12);color:#04122b!important}
/* 下拉 */
.drop{position:absolute;top:100%;left:0;min-width:230px;background:rgba(8,22,48,.98);border:1px solid var(--line2);border-radius:12px;padding:8px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s}
.nav>li:hover .drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop a{display:block;padding:9px 14px;font-size:.9em;color:var(--dim);border-radius:8px}
.drop a:hover{color:var(--cyan2);background:rgba(0,212,255,.1)}
.drop .grp{font-size:.76em;color:var(--dim2);padding:8px 14px 4px;letter-spacing:1px}
.menu-btn{display:none;background:none;border:1px solid var(--line2);color:var(--cyan);font-size:1.3em;padding:6px 12px;border-radius:8px;cursor:pointer}
.mmenu{display:none;background:rgba(8,22,48,.99);border-bottom:1px solid var(--line2);max-height:0;overflow:hidden;transition:max-height .35s}
.mmenu.open{max-height:80vh;overflow-y:auto}
.mmenu a{display:block;padding:13px 22px;color:var(--dim);border-bottom:1px solid rgba(64,180,255,.07);font-size:.95em}
.mmenu a.sub{padding-left:38px;font-size:.88em;color:var(--dim2)}
.mmenu a.call{color:var(--cyan);font-weight:700;background:rgba(0,212,255,.07)}

/* ===== Hero ===== */
.hero{padding:64px 0 54px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-45%;left:-15%;width:65%;height:150%;background:radial-gradient(circle,rgba(30,111,255,.32),transparent 70%);filter:blur(30px);animation:pulse 7s ease-in-out infinite}
.hero .wrap{position:relative;z-index:1;display:flex;align-items:center;gap:44px;flex-wrap:wrap}
.hero-txt{flex:1 1 420px;min-width:300px}
.hero .tag{display:inline-block;font-size:.8em;color:var(--cyan);border:1px solid var(--line2);padding:5px 14px;border-radius:20px;margin-bottom:16px;background:rgba(0,212,255,.06)}
.hero h1{font-size:2.35em;line-height:1.35;font-weight:800;margin-bottom:16px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--dim);font-size:1.02em;margin-bottom:26px;max-width:640px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:6px;padding:13px 26px;border-radius:10px;font-weight:700;font-size:.95em}
.btn-main{background:var(--grad);color:#04122b;box-shadow:var(--glow)}
.btn-main:hover{filter:brightness(1.12)}
.btn-ghost{border:1px solid var(--line2);color:var(--cyan2)}
.btn-ghost:hover{background:rgba(0,212,255,.1)}
.hero-stats{display:flex;gap:26px;margin-top:32px;flex-wrap:wrap}
.hero-stats div{min-width:96px}
.hero-stats b{display:block;font-size:1.65em;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats span{font-size:.82em;color:var(--dim2)}
.hero-img{flex:0 0 420px;border-radius:18px;overflow:hidden;box-shadow:0 12px 40px rgba(0,0,0,.4);border:1px solid var(--line)}
.hero-img img{width:100%;height:290px;object-fit:cover;border-radius:0}

/* ===== 通用区块 ===== */
section{padding:56px 0}
.head{text-align:center;margin-bottom:38px}
.head h2{font-size:1.85em;font-weight:800;margin-bottom:10px}
.head h2 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.head p{color:var(--dim);font-size:.96em;max-width:760px;margin:0 auto}
.head .line{width:56px;height:3px;background:var(--grad);margin:14px auto 0;border-radius:3px}

/* ===== 产品线 ===== */
.lines{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:20px}
.line-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.3s;backdrop-filter:blur(8px)}
.line-card:hover{border-color:var(--line2);background:var(--card-hover);transform:translateY(-4px)}
.line-card h3{font-size:1.16em;margin-bottom:6px;display:flex;align-items:center;gap:9px}
.line-card h3 i{width:34px;height:34px;border-radius:9px;background:rgba(0,212,255,.1);border:1px solid var(--line2);display:flex;align-items:center;justify-content:center;font-style:normal;font-size:1em}
.line-card .desc{color:var(--dim2);font-size:.85em;margin-bottom:14px}
.line-card .items{display:flex;flex-wrap:wrap;gap:8px}
.line-card .items a{font-size:.84em;color:var(--dim);background:rgba(0,212,255,.06);border:1px solid var(--line);padding:5px 12px;border-radius:16px}
.line-card .items a:hover{color:#04122b;background:var(--grad);border-color:transparent}

/* ===== 产品卡 ===== */
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(258px,1fr));gap:18px}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-5px);border-color:var(--line2);box-shadow:0 12px 32px rgba(0,0,0,.35)}
.pcard .ph{height:186px;overflow:hidden;background:linear-gradient(135deg,#0a1c38,#081630)}
.pcard .ph img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:.4s}
.pcard:hover .ph img{transform:scale(1.06)}
.pcard .pb{padding:15px 17px 18px;flex:1;display:flex;flex-direction:column}
.pcard h4{font-size:1.02em;margin-bottom:7px}
.pcard p{font-size:.83em;color:var(--dim2);flex:1;margin-bottom:12px;line-height:1.65}
.pcard .more{font-size:.85em;color:var(--cyan);font-weight:600}

/* ===== 场景方案 ===== */
.scenes{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:16px}
.scene{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;text-align:center;transition:.3s}
.scene:hover{border-color:var(--line2);background:var(--card-hover);transform:translateY(-4px)}
.scene .ico{font-size:1.9em;margin-bottom:10px}
.scene h4{font-size:1.02em;margin-bottom:7px}
.scene p{font-size:.83em;color:var(--dim2)}

/* ===== 优势 ===== */
.advs{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.adv{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--cyan);border-radius:10px;padding:20px}
.adv h4{font-size:1.02em;margin-bottom:8px}
.adv p{font-size:.85em;color:var(--dim2)}

/* ===== 资质 ===== */
.certs{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:14px}
.cert{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:10px;padding:10px;text-align:center;transition:.3s}
.cert:hover{border-color:var(--line2);background:rgba(0,212,255,.07)}
.cert img{width:100%;height:168px;object-fit:contain;background:#fff;border-radius:6px}
.cert span{display:block;font-size:.78em;color:var(--dim);margin-top:9px;line-height:1.4}

/* ===== 数据条 ===== */
.stripe{background:linear-gradient(90deg,rgba(0,60,140,.4),rgba(0,120,200,.22));border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px 0}
.stripe .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px;text-align:center}
.stripe b{display:block;font-size:1.9em;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stripe span{font-size:.85em;color:var(--dim)}

/* ===== 新闻 ===== */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
.news-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;transition:.3s}
.news-item:hover{border-color:var(--line2);transform:translateY(-3px)}
.news-item .date{font-size:.78em;color:var(--cyan);margin-bottom:8px}
.news-item h4{font-size:1em;line-height:1.55;margin-bottom:8px}
.news-item p{font-size:.84em;color:var(--dim2)}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.contact-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.contact-box h4{font-size:1.05em;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.contact-box p{font-size:.9em;color:var(--dim);margin-bottom:7px}
.contact-box a.big{display:inline-block;font-size:1.5em;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-top:6px}
.cta{background:linear-gradient(135deg,rgba(0,212,255,.12),rgba(30,111,255,.14));border:1px solid var(--line2);border-radius:18px;padding:38px 30px;text-align:center}
.cta h3{font-size:1.5em;margin-bottom:12px}
.cta p{color:var(--dim);margin-bottom:22px}
.cta .tel-num{font-size:1.9em;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== 内页 ===== */
.crumb{font-size:.85em;color:var(--dim2);padding:18px 0}
.crumb a{color:var(--dim)}
.crumb a:hover{color:var(--cyan)}
.phead{padding:36px 0 30px;border-bottom:1px solid var(--line);margin-bottom:36px}
.phead h1{font-size:1.95em;font-weight:800;margin-bottom:12px}
.phead p{color:var(--dim);max-width:820px}
.article{max-width:900px}
.article h2{font-size:1.35em;margin:32px 0 14px;padding-left:13px;border-left:3px solid var(--cyan)}
.article h3{font-size:1.1em;margin:24px 0 10px;color:var(--cyan2)}
.article p{color:var(--dim);margin-bottom:14px}
.article ul{margin:0 0 16px 0}
.article ul li{color:var(--dim);padding-left:20px;position:relative;margin-bottom:8px;font-size:.94em}
.article ul li::before{content:"▸";position:absolute;left:2px;color:var(--cyan)}
.article table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.9em}
.article th{background:rgba(0,212,255,.1);color:var(--cyan2);padding:11px;text-align:left;border:1px solid var(--line)}
.article td{padding:10px 11px;border:1px solid var(--line);color:var(--dim)}
.article img{margin:20px 0}
.layout{display:grid;grid-template-columns:1fr 288px;gap:32px;align-items:start}
.side{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:88px}
.side h4{font-size:1em;margin-bottom:14px;padding-bottom:11px;border-bottom:1px solid var(--line)}
.side a{display:block;padding:9px 0;font-size:.88em;color:var(--dim);border-bottom:1px solid rgba(64,180,255,.07)}
.side a:hover{color:var(--cyan);padding-left:6px}
.side .side-cta{margin-top:18px;background:rgba(0,212,255,.07);border:1px solid var(--line2);border-radius:10px;padding:16px;text-align:center}
.side .side-cta b{display:block;font-size:1.15em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.side .side-cta span{font-size:.78em;color:var(--dim2)}

/* ===== 页脚 ===== */
footer{background:linear-gradient(180deg,rgba(8,22,48,.5),rgba(5,13,31,.9));border-top:1px solid var(--line);padding:44px 0 20px;margin-top:20px}
.fgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:28px;margin-bottom:28px}
.fcol h4{font-size:1em;margin-bottom:14px}
.fcol a,.fcol p{display:block;font-size:.85em;color:var(--dim2);margin-bottom:8px}
.fcol a:hover{color:var(--cyan)}
.fcol .tel-big{font-size:1.35em;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:8px;display:block}
.fbot{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.8em;color:var(--dim2)}
.fbot a{color:var(--dim2)}
/* 浮动电话 */
.float-tel{position:fixed;right:18px;bottom:22px;z-index:900;background:var(--grad);color:#04122b;font-weight:800;padding:13px 20px;border-radius:30px;box-shadow:0 8px 26px rgba(0,212,255,.42);display:flex;align-items:center;gap:7px;font-size:.95em}
.float-tel:hover{filter:brightness(1.1);color:#04122b}
/* 动画 */
.anim{opacity:0;transform:translateY(24px);transition:opacity .65s ease,transform .65s ease}
.anim.show{opacity:1;transform:translateY(0)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

/* ===== 响应式 ===== */
@media(max-width:960px){
  .nav{display:none}
  .menu-btn{display:block}
  .mmenu{display:block}
  .layout{grid-template-columns:1fr}
  .side{position:static}
  .hero{padding:44px 0 38px}
  .hero h1{font-size:1.75em}
  .hero-img{flex:1 1 100%;border-radius:14px}
  .hero-img img{height:220px}
  .head h2{font-size:1.5em}
  section{padding:40px 0}
}
@media(max-width:600px){
  .hero h1{font-size:1.5em}
  .hero p{font-size:.94em}
  .lines{grid-template-columns:1fr}
  .pgrid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
  .pcard .ph{height:132px}
  .hero-stats{gap:18px}
  .hero-stats b{font-size:1.35em}
  .float-tel{right:12px;bottom:14px;padding:11px 16px;font-size:.88em}
  .navbar .wrap{height:62px}
  .logo .mark{width:36px;height:36px;font-size:.95em}
  .logo .txt{font-size:.98em}
  .phead h1{font-size:1.45em}
}