:root{
  --black:#16130f;
  --black-2:#0a0907;
  --red:#e0241c;
  --red-2:#ff5147;
  --red-soft:#ffb3ad;
  --red-deep:#a81710;
  --mist:#f6f3f1;
  --mist-2:#ece7e4;
  --ink:#1b1714;
  --ink-soft:#6a615b;
  --white:#ffffff;
  --radius:16px;
  --shadow:0 16px 44px rgba(20,15,12,.16);
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,system-ui,sans-serif;
  color:var(--ink);background:var(--white);line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ===== Header ===== */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid rgba(20,15,12,.08);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px;color:var(--black);letter-spacing:.5px;}
.brand .logo{
  width:38px;height:38px;border-radius:50%;flex:none;
  object-fit:contain;display:block;
  box-shadow:0 6px 16px rgba(224,36,28,.35);
}
.brand small{display:block;font-size:11px;font-weight:600;color:var(--ink-soft);letter-spacing:2px;}
.menu{display:flex;gap:26px;align-items:center;}
.menu a{font-size:15px;color:var(--ink-soft);font-weight:600;position:relative;padding:6px 0;transition:color .2s;}
.menu a:hover{color:var(--black);}
.menu a.active{color:var(--red);}
.menu a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--red);transition:width .25s;}
.menu a:hover::after,.menu a.active::after{width:100%;}
.menu .cta{background:var(--red);color:#fff;padding:9px 20px;border-radius:10px;font-size:14px;}
.menu .cta::after{display:none;}
.menu .cta:hover{background:var(--black);color:#fff;}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:0;padding:8px;}
.burger span{width:24px;height:2px;background:var(--black);border-radius:2px;}

/* ===== Home Hero ===== */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,rgba(10,9,7,.82),rgba(22,19,15,.64)),
             url(../images/banner.png) center/cover no-repeat;
  padding:104px 0 96px;
}
.hero::after{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(224,36,28,.22),transparent 70%);}
.hero .grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:1px;color:var(--red-soft);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:6px 14px;border-radius:999px;margin-bottom:22px;}
.eyebrow b{width:7px;height:7px;border-radius:50%;background:var(--red);display:inline-block;}
.hero h1{font-size:44px;line-height:1.25;font-weight:800;margin-bottom:20px;}
.hero h1 span{color:var(--red-2);}
.hero p.lead{font-size:17px;color:rgba(255,255,255,.82);max-width:560px;margin-bottom:32px;}
.btns{display:flex;gap:14px;flex-wrap:wrap;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:12px;font-weight:700;font-size:15px;transition:transform .2s,box-shadow .2s;}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 10px 26px rgba(224,36,28,.42);}
.btn-primary:hover{transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.28);}
.btn-ghost:hover{background:rgba(255,255,255,.18);}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:26px;backdrop-filter:blur(6px);}
.hero-card h3{font-size:15px;color:var(--red-soft);letter-spacing:1px;margin-bottom:16px;}
.stat-row{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12);}
.stat-row:last-child{border-bottom:0;}
.stat-row .k{color:rgba(255,255,255,.8);font-size:14px;}
.stat-row .v{font-weight:800;font-size:17px;color:#fff;}

/* ===== Section base ===== */
section{padding:84px 0;}
.sec-head{text-align:center;max-width:680px;margin:0 auto 50px;}
.sec-tag{color:var(--red);font-weight:700;letter-spacing:3px;font-size:13px;text-transform:uppercase;}
.sec-head h2{font-size:32px;font-weight:800;margin:12px 0 14px;color:var(--black);}
.sec-head p{color:var(--ink-soft);font-size:16px;}

/* ===== Services (home) ===== */
.services{background:var(--mist);}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.card{background:var(--white);border:1px solid var(--mist-2);border-radius:var(--radius);padding:28px 24px;
  transition:transform .25s,box-shadow .25s,border-color .25s;position:relative;overflow:hidden;display:flex;flex-direction:column;}
.card::before{content:"";position:absolute;left:0;top:0;height:4px;width:100%;background:linear-gradient(90deg,var(--red),var(--red-deep));transform:scaleX(0);transform-origin:left;transition:transform .3s;}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent;}
.card:hover::before{transform:scaleX(1);}
.card .thumb{width:88%;max-width:220px;height:150px;object-fit:cover;display:block;margin:12px auto 22px;border-radius:14px;box-shadow:0 8px 20px rgba(20,15,12,.12);}
.ic{width:52px;height:52px;border-radius:14px;background:var(--mist);display:grid;place-items:center;margin-bottom:18px;color:var(--red);}
.card > .ic{margin:0 auto 22px;}
.card h3{font-size:18px;color:var(--black);margin-bottom:12px;}
.card p{font-size:14.5px;color:var(--ink-soft);}
.card .more{display:inline-block;margin-top:16px;color:var(--red);font-weight:700;font-size:14px;}

/* ===== About (home) ===== */
.about .grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:stretch;}
.about .grid > div{display:flex;flex-direction:column;}
.about .badge{display:inline-block;background:var(--mist);color:var(--red);font-weight:700;font-size:13px;padding:6px 14px;border-radius:999px;margin-bottom:18px;}
.about h2{font-size:28px;color:var(--black);margin-bottom:18px;line-height:1.35;white-space:nowrap;}
.about p{color:var(--ink-soft);margin-bottom:18px;font-size:15.5px;}
.about-visual{background:linear-gradient(150deg,#24211e,#1a1715);border:1px solid rgba(255,255,255,.06);
              border-radius:24px;padding:30px;color:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;min-height:260px;}
.about-visual::after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(224,36,28,.08),transparent 70%);right:-70px;bottom:-70px;}
.visual-head{position:relative;z-index:2;display:flex;flex-direction:column;gap:18px;}
.about-visual h3{font-size:15px;letter-spacing:2px;color:#fff;margin-bottom:6px;}
.visual-head>p{font-size:14px;color:rgba(255,255,255,.78);margin:0;line-height:1.55;}
.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;}
.mini-stats div{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.10);border-radius:12px;padding:12px 10px;text-align:center;}
.mini-stats b{display:block;font-size:20px;color:var(--red-2);font-weight:800;line-height:1;}
.mini-stats span{display:block;font-size:11px;color:rgba(255,255,255,.78);margin-top:4px;}
.cap-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px;}
.cap{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:18px 16px;transition:transform .2s,background .2s,border-color .2s;}
.cap:hover{transform:translateY(-4px);background:rgba(255,255,255,.10);border-color:rgba(224,36,28,.25);}
.cap-num{display:inline-block;font-size:11px;font-weight:800;color:rgba(255,255,255,.45);background:rgba(255,255,255,.08);padding:3px 8px;border-radius:999px;margin-bottom:10px;}
.cap h4{font-size:15px;font-weight:700;margin-bottom:6px;}
.cap p{font-size:13px;color:rgba(255,255,255,.65);line-height:1.55;margin:0;}
.about-illust{width:100%;max-width:none;aspect-ratio:640/200;height:auto;flex:0 0 auto;border-radius:18px;margin-bottom:18px;box-shadow:var(--shadow);overflow:hidden;}
.about-illust svg{width:100%;height:100%;display:block;}

/* gallery / showcase */
.gallery{background:var(--white);}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.gallery-grid figure{margin:0;border-radius:14px;overflow:hidden;box-shadow:0 8px 24px rgba(20,15,12,.10);background:var(--mist);}
.gallery-grid img{width:100%;height:184px;object-fit:cover;display:block;transition:transform .35s;}
.gallery-grid figure:hover img{transform:scale(1.06);}
.gallery-grid figcaption{padding:12px 16px;font-size:14px;color:var(--black);font-weight:600;}

/* sub-page visual image */
.detail .visual .visual-img{width:100%;height:156px;object-fit:cover;border-radius:12px;margin-bottom:18px;}

/* ===== Pillars (home) ===== */
.pillars{background:var(--mist);}
.p-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.p{background:var(--white);border-radius:var(--radius);padding:32px 28px;box-shadow:0 8px 24px rgba(20,15,12,.06);border-top:4px solid var(--red);}
.p .num{font-size:14px;font-weight:800;color:var(--red);letter-spacing:1px;}
.p h3{font-size:20px;color:var(--black);margin:10px 0 12px;}
.p p{color:var(--ink-soft);font-size:14.5px;}

/* ===== Quote banner ===== */
.quote{background:linear-gradient(135deg,var(--black),var(--black-2));color:#fff;text-align:center;position:relative;overflow:hidden;}
.quote::before{content:"";position:absolute;left:-80px;bottom:-80px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(224,36,28,.45),transparent 70%);}
.quote .wrap{position:relative;z-index:2;}
.quote .big{font-size:30px;font-weight:800;line-height:1.5;max-width:820px;margin:0 auto;}
.quote .big span{color:var(--red-2);}
.quote .sub{margin-top:18px;color:rgba(255,255,255,.7);letter-spacing:1px;}

/* ===== Contact (home) ===== */
.contact .grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.contact h2{font-size:28px;color:var(--black);margin-bottom:14px;}
.contact p{color:var(--ink-soft);margin-bottom:22px;}
.info{display:grid;gap:14px;}
.info .row{display:flex;gap:14px;align-items:center;background:var(--mist);border-radius:12px;padding:14px 18px;}
.info .row .ic{margin:0;width:42px;height:42px;}
.info .row b{display:block;font-size:14px;color:var(--black);}
.info .row span{font-size:14px;color:var(--ink-soft);}
.form{background:var(--mist);border-radius:var(--radius);padding:30px;}
.form label{display:block;font-size:13px;font-weight:700;color:var(--black);margin:0 0 6px;}
.form input,.form textarea{width:100%;border:1px solid var(--mist-2);border-radius:10px;padding:12px 14px;font-size:14px;font-family:inherit;margin-bottom:16px;background:#fff;color:var(--ink);}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--red);}
.form button{width:100%;background:var(--red);color:#fff;border:0;border-radius:10px;padding:13px;font-weight:700;font-size:15px;cursor:pointer;transition:background .2s;}
.form button:hover{background:var(--black);}

/* ===== Footer ===== */
footer{background:var(--black-2);color:rgba(255,255,255,.7);padding:46px 0 30px;}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.foot .brand{color:#fff;margin-bottom:14px;display:flex;align-items:center;gap:12px;font-weight:800;font-size:18px;}
.foot .brand .logo{width:34px;height:34px;border-radius:50%;background:none;object-fit:contain;display:block;flex:none;}
.foot p{font-size:14px;}
.foot h4{color:#fff;font-size:15px;margin-bottom:14px;}
.foot a{display:block;font-size:14px;padding:5px 0;color:rgba(255,255,255,.7);transition:color .2s;}
.foot a:hover{color:var(--red-2);}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;text-align:center;font-size:13px;color:rgba(255,255,255,.55);}

/* ====================================================== */
/* ===== Sub-page components ===== */
.subhero{
  position:relative;overflow:hidden;color:#fff;padding:72px 0 60px;
  background:radial-gradient(900px 420px at 85% -20%,rgba(224,36,28,.5),transparent),
             linear-gradient(135deg,var(--black),var(--black-2));
}
.subhero::after{content:"";position:absolute;right:-90px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,81,71,.2),transparent 70%);}
.subhero .wrap{position:relative;z-index:2;}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.65);margin-bottom:16px;}
.breadcrumb a:hover{color:var(--red-soft);}
.breadcrumb span{margin:0 8px;opacity:.6;}
.subhero h1{font-size:38px;font-weight:800;line-height:1.3;margin-bottom:14px;}
.subhero p{font-size:16px;color:rgba(255,255,255,.82);max-width:680px;}
.subhero .tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:1px;color:var(--red-soft);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:6px 14px;border-radius:999px;margin-bottom:18px;}

/* detail layout */
.detail .grid2{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin-bottom:24px;}
.detail .grid2 .about-visual{align-self:stretch;height:auto;}
.detail .lead h2{font-size:28px;color:var(--black);margin-bottom:16px;line-height:1.35;}
.detail .lead p{color:var(--ink-soft);font-size:15.5px;margin-bottom:14px;}
.detail .visual{background:linear-gradient(150deg,#24211e,#1a1715);border:1px solid rgba(255,255,255,.06);
              border-radius:22px;padding:34px;color:#fff;position:relative;overflow:hidden;min-height:240px;}
.detail .visual::after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(224,36,28,.08),transparent 70%);right:-60px;bottom:-60px;}
.detail .visual h3{font-size:14px;letter-spacing:2px;color:#fff;margin-bottom:16px;position:relative;z-index:2;}
.detail .visual ul{list-style:none;display:grid;gap:12px;position:relative;z-index:2;}
.detail .visual li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;}
.detail .visual li .dot{width:20px;height:20px;border-radius:6px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.10);display:grid;place-items:center;flex:none;font-size:11px;color:rgba(255,255,255,.5);}

/* feature grid */
.feat{background:var(--mist);}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.feat-card{background:var(--white);border:1px solid var(--mist-2);border-radius:var(--radius);padding:28px 24px;transition:transform .25s,box-shadow .25s;}
.feat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
.feat-card .ic{width:50px;height:50px;border-radius:14px;background:var(--mist);display:grid;place-items:center;margin-bottom:16px;color:var(--red);}
.feat-card h3{font-size:18px;color:var(--black);margin-bottom:10px;}
.feat-card p{font-size:14.5px;color:var(--ink-soft);}

/* process timeline */
.process .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{position:relative;background:var(--white);border:1px solid var(--mist-2);border-radius:var(--radius);padding:26px 22px;}
.step .n{counter-increment:step;width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--red),var(--red-deep));
  color:#fff;font-weight:800;display:grid;place-items:center;margin-bottom:14px;font-size:15px;}
.step .n::before{content:counter(step);}
.step h3{font-size:17px;color:var(--black);margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-soft);}

/* why */
.why .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.why .item{display:flex;gap:14px;align-items:flex-start;background:var(--white);border:1px solid var(--mist-2);border-radius:var(--radius);padding:22px;}
.why .item .ic{width:44px;height:44px;border-radius:12px;background:var(--mist);display:grid;place-items:center;flex:none;color:var(--red);}
.why .item h3{font-size:16px;color:var(--black);margin-bottom:6px;}
.why .item p{font-size:14px;color:var(--ink-soft);}

/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--red),var(--red-deep));color:#fff;text-align:center;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;left:-60px;top:-60px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(255,81,71,.28),transparent 70%);}
.cta-band .wrap{position:relative;z-index:2;}
.cta-band h2{font-size:28px;font-weight:800;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.82);margin-bottom:24px;}

/* ===== Responsive ===== */
@media(max-width:980px){
  .cards{grid-template-columns:repeat(2,1fr);}
  .p-grid,.feat-grid,.why .grid{grid-template-columns:1fr;}
  .gallery-grid{grid-template-columns:repeat(2,1fr);}
  .process .steps{grid-template-columns:repeat(2,1fr);}
  .hero .grid,.about .grid,.contact .grid,.detail .grid2{grid-template-columns:1fr;}
  .hero-card,.about-visual,.detail .visual{order:2;}
  .foot{grid-template-columns:1fr 1fr;}
  .cap-grid{grid-template-columns:1fr 1fr;}
  .mini-stats{grid-template-columns:repeat(3,1fr);}
}
@media(max-width:640px){
  .menu{position:fixed;inset:74px 0 auto 0;background:#fff;flex-direction:column;gap:0;padding:10px 24px 24px;
    box-shadow:0 20px 40px rgba(20,15,12,.16);transform:translateY(-120%);transition:transform .3s;align-items:stretch;}
  .menu.open{transform:translateY(0);}
  .menu a{padding:14px 0;border-bottom:1px solid var(--mist-2);}
  .menu .cta{text-align:center;margin-top:12px;}
  .burger{display:flex;}
  .cards{grid-template-columns:1fr;}
  .process .steps{grid-template-columns:1fr;}
  .gallery-grid{grid-template-columns:1fr;}
  .foot{grid-template-columns:1fr;}
  .cap-grid{grid-template-columns:1fr;}
  .mini-stats{grid-template-columns:1fr 1fr 1fr;}
  .hero h1{font-size:34px;}
  .subhero h1{font-size:30px;}
  .quote .big{font-size:24px;}
}