/* ============================================================
   Puraxtek Water Treatment Equipment Co., Ltd.
   Shared stylesheet — www.puraxtek.com
   ============================================================ */
:root{
  --primary:#0F3460;
  --primary-dark:#0A2647;
  --primary-light:#1A508B;
  --accent:#FF6B35;
  --accent-dark:#e8541f;
  --accent-soft:#fff1e8;
  --ink:#17202a;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#f8fafc;
  --white:#fff;
  --ok:#16a34a;
  --wa:#25D366;
  --rad:14px;
  --shadow:0 6px 24px rgba(10,38,71,.10);
  --shadow-lg:0 16px 40px rgba(10,38,71,.16);
  --font:'Montserrat','Segoe UI','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{letter-spacing:-.01em}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary-light);text-decoration:none}
a:hover{color:var(--accent)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section.tint{background:var(--bg)}
.sec-head{max-width:760px;margin:0 auto 44px;text-align:center}
.sec-head .eyebrow{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);padding:5px 14px;border-radius:999px;margin-bottom:14px}
.sec-head h2{font-size:clamp(1.6rem,3.2vw,2.3rem);line-height:1.25;color:var(--primary-dark);margin-bottom:14px}
.sec-head p{color:var(--muted);font-size:1.02rem}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.95rem;padding:12px 26px;border-radius:10px;border:2px solid transparent;cursor:pointer;transition:.22s;line-height:1.2}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline:hover{background:#fff;color:var(--primary-dark);border-color:#fff}
.btn-outline-dark{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline-dark:hover{background:var(--primary);color:#fff}
.btn-wa{background:var(--wa);color:#fff}
.btn-wa:hover{background:#1da851;color:#fff;transform:translateY(-1px)}
.btn-block{width:100%;justify-content:center}
.btn-sm{padding:9px 16px;font-size:.85rem}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.25rem;color:var(--primary-dark)}
.logo-img{height:34px;width:auto;display:block}
.logo svg{flex:0 0 auto}
.logo small{display:block;font-size:.62rem;font-weight:500;color:var(--muted);letter-spacing:.05em;text-transform:uppercase;line-height:1.2}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none}
.nav-menu a{display:block;padding:10px 12px;font-size:.92rem;font-weight:600;color:var(--ink);border-radius:8px;white-space:nowrap}
.nav-menu a:hover{color:var(--accent);background:#f4f6f8}
.nav-menu li.active > a{color:var(--accent)}
.nav-cta{display:flex;align-items:center;gap:10px}
/* ---------- Language switch ---------- */
.lang-switch{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:6px;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 11px;font-family:var(--font);font-size:.84rem;font-weight:600;color:var(--ink);cursor:pointer;transition:.2s;white-space:nowrap}
.lang-btn:hover{border-color:var(--primary-light);color:var(--primary)}
.lang-btn svg{flex:0 0 auto}
.lang-cur{line-height:1}
.lang-menu{display:none;position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);padding:6px;min-width:170px;list-style:none;z-index:300;max-height:calc(100vh - 120px);overflow-y:auto}
.lang-switch.open .lang-menu{display:block}
.lang-menu a{display:flex;align-items:center;gap:9px;padding:8px 12px;border-radius:8px;font-size:.9rem;font-weight:500;color:var(--ink);white-space:nowrap}
.lang-menu .flag{flex:0 0 auto;font-size:1.05rem;line-height:1}
.lang-cur .lang-flag{margin-right:4px;font-size:.95rem}
.lang-menu a:hover{background:var(--accent-soft);color:var(--accent)}
.lang-menu a.active{color:var(--accent);font-weight:600}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;width:42px;height:42px;border-radius:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px auto;transition:.25s}
@media(max-width:980px){
  .nav-toggle{display:block}
  .nav-menu{position:fixed;inset:72px 0 auto 0;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:10px 20px 20px;gap:2px;transform:translateY(-120%);transition:.28s;box-shadow:var(--shadow);max-height:calc(100vh - 72px);overflow-y:auto}
  .nav-menu.open{transform:translateY(0)}
  .nav-menu a{padding:13px 10px;font-size:1rem;width:100%}
  .nav-cta .btn{display:none}
}

/* ---------- Dropdown menus ---------- */
.nav-menu .has-dropdown{position:relative}
.nav-menu .has-dropdown > .dropdown{
  display:none;position:absolute;top:100%;left:0;background:#fff;
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);
  padding:10px;min-width:250px;z-index:300;
}
.nav-menu .has-dropdown:hover > .dropdown,
.nav-menu .has-dropdown:focus-within > .dropdown{display:block}
.nav-menu .dropdown a{display:block;padding:8px 12px;border-radius:8px;font-size:.9rem;font-weight:500;color:var(--ink);width:100%}
.nav-menu .dropdown a:hover{background:var(--accent-soft);color:var(--accent)}
.drop-grid{display:flex;gap:6px}
.drop-col{min-width:220px}
.drop-head{display:block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding:8px 12px 4px}
.drop-all{display:block;border-top:1px solid var(--line);margin-top:8px;padding:10px 12px 4px;font-weight:600;color:var(--primary) !important}
.drop-all:hover{color:var(--accent) !important;background:transparent !important}
@media(max-width:980px){
  .nav-menu .has-dropdown > .dropdown{position:static;display:none;background:#f6f8fa;border:0;box-shadow:none;margin:2px 0 8px;padding:6px 8px;border-radius:10px;min-width:0}
  .nav-menu .has-dropdown.open > .dropdown{display:block}
  .drop-grid{flex-direction:column}
  .drop-col{min-width:0}
  .drop-all{margin-top:6px}
}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:linear-gradient(120deg,#0A2647 0%,#0F3460 55%,#1A508B 100%)}
.hero .bg{position:absolute;inset:0;opacity:.22;background-size:cover;background-position:center;z-index:0}
.hero .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(10,38,71,.92) 20%,rgba(10,38,71,.55) 70%)}
.hero-inner{position:relative;z-index:2;padding:96px 0 100px;max-width:820px}
.hero h1{font-size:clamp(2rem,5vw,3.1rem);line-height:1.18;margin-bottom:20px;letter-spacing:-.01em}
.hero h1 .hl{color:var(--accent)}
.hero p{font-size:clamp(1rem,1.6vw,1.18rem);color:rgba(255,255,255,.9);max-width:660px;margin-bottom:30px}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap;margin-top:52px}
.hero-stats .stat b{display:block;font-size:1.7rem;color:#fff}
.hero-stats .stat span{font-size:.85rem;color:rgba(255,255,255,.75)}

/* ---------- Card grids ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:28px;transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.card .ic{width:54px;height:54px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0F3460,#1A508B);color:#fff;margin-bottom:18px}
.card h3{font-size:1.12rem;color:var(--primary-dark);margin-bottom:8px}
.card p{color:var(--muted);font-size:.93rem;flex:1}
.card .more{margin-top:16px;font-weight:600;font-size:.9rem;color:var(--accent)}
.card.plain{padding:0;border:0}
.card.plain img{border-radius:var(--rad);width:100%;height:200px;object-fit:cover}
.card.plain .c-body{padding:18px 6px 0}
.card.plain .c-body .tag{font-size:.75rem;color:var(--accent);font-weight:600;text-transform:uppercase;letter-spacing:.05em}

/* ---------- Split feature rows ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:28px}}
.split img{border-radius:var(--rad);box-shadow:var(--shadow);width:100%;height:100%;object-fit:cover;max-height:420px}
.split h2{font-size:clamp(1.5rem,2.8vw,2rem);color:var(--primary-dark);margin-bottom:16px}
.split p{color:var(--muted);margin-bottom:14px}
.check-list{list-style:none}
.check-list li{position:relative;padding:7px 0 7px 34px;color:var(--ink)}
.check-list li::before{content:"";position:absolute;left:0;top:12px;width:18px;height:18px;border-radius:50%;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23FF6B35' stroke-width='3'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E");background-size:11px;background-position:center;background-repeat:no-repeat}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{background:linear-gradient(120deg,#0A2647,#123B73);color:#fff;padding:64px 0 58px}
.page-hero h1{font-size:clamp(1.8rem,3.6vw,2.5rem);margin-bottom:12px}
.page-hero p{color:rgba(255,255,255,.86);max-width:720px;font-size:1.05rem}
.breadcrumb{font-size:.82rem;color:rgba(255,255,255,.7);margin-bottom:14px}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{margin:0 7px}

/* ---------- Spec table ---------- */
.spec-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--rad);overflow:hidden}
.spec-table th,.spec-table td{padding:13px 18px;text-align:left;font-size:.92rem;border-bottom:1px solid var(--line)}
.spec-table th{background:var(--primary-dark);color:#fff;font-weight:600}
.spec-table tr:last-child td{border-bottom:0}
.spec-table tr:nth-child(even) td{background:#f7fafc}

/* ---------- FAQ ---------- */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 20px;font-weight:600;color:var(--primary-dark);display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.4rem;color:var(--accent);line-height:1}
.faq-item[open] summary::after{content:"\2212"}
.faq-item .faq-body{padding:0 20px 18px;color:var(--muted);font-size:.95rem}

/* ---------- CTA banner ---------- */
.cta-band{background:linear-gradient(120deg,var(--accent),#ff8b52);border-radius:20px;padding:46px 40px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.3rem,2.4vw,1.8rem);margin-bottom:6px}
.cta-band p{opacity:.95;max-width:560px}
.cta-band .btn-accent{background:var(--primary-dark)}
.cta-band .btn-accent:hover{background:#061a35}

/* ---------- Contact form ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:32px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:.86rem;font-weight:600;color:var(--primary-dark)}
.field .req{color:var(--accent)}
.field input,.field select,.field textarea{padding:12px 14px;border:1px solid var(--line);border-radius:9px;font-size:.93rem;font-family:inherit;background:#fbfcfe;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--primary-light);background:#fff;box-shadow:0 0 0 3px rgba(31,80,139,.12)}
.field textarea{min-height:120px;resize:vertical}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:26px;margin-bottom:20px}
.info-row{display:flex;gap:14px;padding:9px 0;align-items:flex-start}
.info-row i{color:var(--accent);font-size:1.05rem;width:20px;text-align:center;margin-top:2px}
.info-row b{display:block;font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.info-row span{color:var(--ink)}
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:26px;align-items:start}
@media(max-width:860px){.contact-grid{grid-template-columns:1fr}}

/* ---------- Footer ---------- */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.82);padding:60px 0 0;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:38px}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:16px}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:9px}
.site-footer a{color:rgba(255,255,255,.78);font-size:.9rem}
.site-footer a:hover{color:var(--accent)}
.foot-logo{display:inline-flex}
.foot-logo-img{height:34px;width:auto;background:#fff;border-radius:8px;padding:6px 14px}
.foot-about p{font-size:.9rem;margin-top:14px;color:rgba(255,255,255,.65)}
.foot-contact li{display:flex;gap:9px;align-items:flex-start;font-size:.9rem}
.foot-contact i{color:var(--accent);margin-top:3px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:.82rem;color:rgba(255,255,255,.55)}

/* ---------- News / article ---------- */
.article{max-width:820px;margin:0 auto}
.article .meta{color:var(--muted);font-size:.86rem;margin:14px 0 26px;display:flex;gap:16px;flex-wrap:wrap}
.article h2{color:var(--primary-dark);font-size:1.5rem;margin:34px 0 14px}
.article h3{color:var(--primary-dark);font-size:1.2rem;margin:26px 0 12px}
.article p{margin-bottom:16px;color:#334155}
.article ul,.article ol{margin:0 0 18px 22px;color:#334155}
.article li{margin-bottom:7px}
.article .lead{font-size:1.12rem;color:var(--primary-dark)}
.tag-chip{display:inline-block;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--accent);background:var(--accent-soft);padding:4px 12px;border-radius:999px}

/* ---------- Misc ---------- */
.icon-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;list-style:none}
.icon-list li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;display:flex;gap:12px;align-items:flex-start;font-size:.92rem}
.icon-list li i{color:var(--accent);margin-top:3px}
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center}
@media(max-width:800px){.stat-band{grid-template-columns:repeat(2,1fr)}}
.stat-band .st b{display:block;font-size:2rem;color:var(--primary);line-height:1.2}
.stat-band .st span{font-size:.85rem;color:var(--muted)}
.quote-form-note{font-size:.82rem;color:var(--muted);margin-top:10px}
.pill-row{display:flex;gap:10px;flex-wrap:wrap}
.pill{background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:7px 16px;font-size:.85rem;color:var(--primary);font-weight:600}

/* Google Translate widget host (hidden; driven by custom dropdown) */
.gt-host{display:none}


[dir="rtl"] .lang-menu{right:auto;left:0}