/* ===== Reset & Variables ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--p:#0f1b2d;--p2:#1a3050;--a:#e67e22;--a2:#f5a623;--bg:#f4f6f9;--w:#fff;--t:#1a2332;--t2:#6b7a8f;--shadow:0 4px 24px rgba(0,0,0,.06);--radius:14px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;background:var(--bg);color:var(--t);line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}img{max-width:100%;height:auto}

/* ===== Navbar ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;background:rgba(15,27,45,.95);backdrop-filter:blur(12px)}
.navbar .brand{font-size:17px;font-weight:800;color:#fff}.navbar .brand span{color:var(--a2)}
.nav-links{display:flex;gap:2px;align-items:center}
.nav-links a{color:rgba(255,255,255,.75);font-size:13.5px;padding:8px 18px;border-radius:8px;transition:all .3s;white-space:nowrap}
.nav-links a:hover{color:#fff;background:rgba(230,126,34,.2)}
.nav-links .nav-phone{background:var(--a);color:#fff!important;padding:8px 22px;border-radius:24px;font-weight:700}
.nav-links .nav-phone:hover{background:var(--a2)}
@media(max-width:768px){.navbar{padding:0 16px}.nav-links a{font-size:12px;padding:6px 12px}}

/* ===== Hero ===== */
.hero{position:relative;padding:100px 20px 60px;display:flex;align-items:center;justify-content:center;min-height:70vh;background:linear-gradient(160deg,var(--p) 0%,#13203a 40%,#0d1a30 100%);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 20% 50%,rgba(230,126,34,.06) 0%,transparent 60%)}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;max-width:800px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(230,126,34,.12);border:1px solid rgba(230,126,34,.25);padding:5px 16px;border-radius:30px;font-size:12px;color:var(--a2);margin-bottom:16px}
.hero-content h1{font-size:clamp(26px,5vw,40px);font-weight:800;margin-bottom:6px}
.hero-content h1 span{color:var(--a2)}
.hero-content .tagline{font-size:clamp(15px,2.5vw,20px);color:rgba(255,255,255,.55);font-weight:300;margin-bottom:4px}
.hero-content p{font-size:13px;color:rgba(255,255,255,.4);max-width:600px;margin:0 auto 24px}
.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-btns a{padding:12px 30px;border-radius:40px;font-size:14px;font-weight:700;transition:all .3s}
.hero-btns .btn-primary{background:linear-gradient(135deg,var(--a),var(--a2));color:#fff;box-shadow:0 4px 20px rgba(230,126,34,.3)}
.hero-btns .btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(230,126,34,.4)}
.hero-btns .btn-outline{border:2px solid rgba(255,255,255,.2);color:#fff}
.hero-btns .btn-outline:hover{border-color:var(--a);background:rgba(230,126,34,.12);transform:translateY(-2px)}

/* ===== Sections ===== */
.section{padding:clamp(40px,6vw,60px) 20px}
.section-inner{max-width:960px;margin:0 auto}
.s-title{font-size:clamp(20px,2.5vw,26px);font-weight:800;color:var(--p);text-align:center;margin-bottom:4px}
.s-title .hl{color:var(--a)}
.s-sub{text-align:center;color:var(--t2);font-size:13px;margin-bottom:28px;max-width:600px;margin-left:auto;margin-right:auto}

/* ===== Category Cards ===== */
.cat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.cat-card{background:var(--w);border-radius:var(--radius);padding:20px;border:1px solid #e8ecf1;transition:all .3s;display:flex;gap:14px;align-items:center}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--a)}
.cat-card .ci{width:50px;height:50px;border-radius:12px;background:#fef3e7;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.cat-card .cb h4{font-size:14px;font-weight:700;color:var(--p);margin-bottom:2px}
.cat-card .cb p{font-size:12px;color:var(--t2)}
@media(max-width:640px){.cat-grid{grid-template-columns:1fr}}

/* ===== Product Grid ===== */
.prod-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
@media(max-width:900px){.prod-grid{grid-template-columns:1fr 1fr}}
@media(max-width:500px){.prod-grid{grid-template-columns:1fr}}
.p-card{background:var(--w);border-radius:var(--radius);overflow:hidden;border:1px solid #e8ecf1;transition:all .3s}
.p-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(0,0,0,.08);border-color:var(--a)}
.p-card .p-img{height:140px;background:var(--p);background-size:cover;background-position:center;position:relative}
.p-card .p-body{padding:16px}
.p-card .p-body h4{font-size:14px;font-weight:700;color:var(--p);margin-bottom:4px}
.p-card .p-body p{font-size:12px;color:var(--t2);line-height:1.5;margin-bottom:8px}
.p-card .p-body .tag-row{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:8px}
.p-card .p-body .tag-row span{background:#f0f2f5;padding:2px 8px;border-radius:4px;font-size:10px;color:var(--t2)}
.p-card .p-body a{font-size:12px;color:var(--a);font-weight:600;}
.p-card .p-body a:hover{opacity:.8}

/* ===== Features ===== */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:768px){.adv-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.adv-grid{grid-template-columns:1fr}}
.adv-card{background:var(--w);border-radius:var(--radius);padding:22px 16px;text-align:center;border:1px solid #e8ecf1;transition:all .3s}
.adv-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.adv-card .ai{font-size:30px;margin-bottom:8px}
.adv-card h4{font-size:14px;font-weight:700;color:var(--p);margin-bottom:2px}
.adv-card p{font-size:11px;color:var(--t2)}

/* ===== Process ===== */
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
@media(max-width:768px){.process{grid-template-columns:repeat(3,1fr)}}
@media(max-width:480px){.process{grid-template-columns:1fr 1fr}}
.process .p-step{text-align:center;padding:16px 8px;background:var(--w);border-radius:12px;border:1px solid #e8ecf1}
.process .p-step .p-num{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--a),var(--a2));color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;margin:0 auto 6px}
.process .p-step h4{font-size:13px;font-weight:700;color:var(--p);margin-bottom:2px}
.process .p-step p{font-size:11px;color:var(--t2)}

/* ===== Contact ===== */
.contact-wrap{background:linear-gradient(135deg,var(--p),#0d1a30);color:#fff;border-radius:var(--radius);padding:30px 24px;display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:768px){.contact-wrap{grid-template-columns:1fr}}
.contact-wrap .c-info h3{font-size:17px;font-weight:700;margin-bottom:12px}
.contact-wrap .c-info .c-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;font-size:13px}
.contact-wrap .c-info .c-row .c-ic{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0}
.contact-wrap .c-info a{color:#fff}.contact-wrap .c-info a:hover{color:var(--a2)}
.contact-wrap .c-form{background:rgba(255,255,255,.06);border-radius:12px;padding:20px;border:1px solid rgba(255,255,255,.08)}
.contact-wrap .c-form h4{font-size:14px;font-weight:700;margin-bottom:10px}
.contact-wrap .c-form .f-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
@media(max-width:480px){.c-form .f-row{grid-template-columns:1fr}}
.contact-wrap .c-form input,.contact-wrap .c-form textarea{width:100%;padding:10px 14px;border-radius:8px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:#fff;font-size:13px;font-family:inherit;outline:none}
.contact-wrap .c-form textarea{height:80px;resize:vertical}
.contact-wrap .c-form button{width:100%;padding:11px;border-radius:24px;border:none;background:linear-gradient(135deg,var(--a),var(--a2));color:#fff;font-size:14px;font-weight:700;cursor:pointer;transition:all .3s;font-family:inherit}
.contact-wrap .c-form button:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(230,126,34,.3)}

/* ===== Footer ===== */
.footer{background:var(--p);color:rgba(255,255,255,.35);text-align:center;padding:20px;font-size:12px;line-height:2}
.footer a{color:rgba(255,255,255,.45)}.footer a:hover{color:var(--a2)}

/* ===== Fade In ===== */
.fade-up{opacity:0;transform:translateY(24px);transition:opacity .6s,transform .6s}
.fade-up.show{opacity:1;transform:translateY(0)}

/* ===== To Top ===== */
.to-top{position:fixed;bottom:80px;right:20px;z-index:99;width:38px;height:38px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--a),var(--a2));color:#fff;font-size:16px;cursor:pointer;opacity:0;transform:translateY(20px);pointer-events:none;transition:all .3s;box-shadow:0 4px 16px rgba(230,126,34,.3);display:flex;align-items:center;justify-content:center}
.to-top.show{opacity:1;transform:translateY(0);pointer-events:auto}

/* ===== Mobile Bar ===== */
.mobile-bar{position:fixed;bottom:0;left:0;right:0;z-index:99;background:var(--p);display:none;height:50px;align-items:center}
.mobile-bar a{flex:1;display:flex;align-items:center;justify-content:center;gap:4px;color:#fff;font-size:12px;font-weight:600;height:100%;background:rgba(255,255,255,.06)}
.mobile-bar .m-cta{background:var(--a)}.mobile-bar .m-cta:hover{background:var(--a2)}
@media(max-width:768px){.mobile-bar{display:flex}}