/* ============================================================
   HYDROFORGE - Hydraulic Press Machine Manufacturer
   DNA: zinc white + graphite bands + signal red / HarmonyOS Sans
   ============================================================ */

:root{
    --c-bg:#F4F5F7;
    --c-surface:#FFFFFF;
    --c-dark:#1B1E23;
    --c-dark-2:#15181C;
    --c-ink:#191C20;
    --c-slate:#565D66;
    --c-mist:#9AA1AA;
    --c-red:#D6362B;
    --c-red-dark:#B12A20;
    --c-line:#E2E5E9;
    --c-line-dark:#2A2F36;
    --radius:6px;
    --font:'HarmonyOS Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
    --nav-h:4.8vw;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h);}
body{font-family:var(--font);font-weight:400;background:var(--c-bg);color:var(--c-ink);line-height:1.6;-webkit-font-smoothing:antialiased;}
img{display:block;max-width:100%;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
button{font-family:inherit;background:none;border:none;cursor:pointer;}

.index_container{width:94.44vw;margin:0 auto;}

/* ---------- Buttons ---------- */
.index_btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5vw;padding:0.85vw 1.9vw;border-radius:var(--radius);font-size:0.92vw;font-weight:500;line-height:1.2;white-space:nowrap;transition:background 0.25s,color 0.25s,border-color 0.25s,transform 0.25s;}
.index_btn--solid{background:var(--c-red);color:#fff;}
.index_btn--solid:hover{background:var(--c-red-dark);transform:translateY(-2px);}
.index_btn--ghost{border:1px solid rgba(255,255,255,0.55);color:#fff;}
.index_btn--ghost:hover{background:rgba(255,255,255,0.12);border-color:#fff;}
.index_btn--outline{border:1px solid var(--c-red);color:var(--c-red);}
.index_btn--outline:hover{background:var(--c-red);color:#fff;}
.index_btn--block{width:100%;}

/* ---------- Navbar ---------- */
.index_navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow 0.3s;}
.index_navbar.is-scrolled{box-shadow:0 8px 28px rgba(21,24,28,0.1);}
.index_navbar-inner{height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:2vw;}
.index_brand{display:flex;align-items:center;gap:0.65vw;}
.index_brand-mark{display:flex;align-items:center;justify-content:center;width:2.4vw;height:2.4vw;background:var(--c-red);color:#fff;font-weight:900;font-size:0.95vw;letter-spacing:0.03em;border-radius:var(--radius);}
.index_brand-name{font-weight:900;font-size:1.15vw;letter-spacing:0.08em;color:var(--c-ink);}
.index_nav{display:flex;gap:2.2vw;}
.index_nav a{font-size:0.9vw;font-weight:500;color:var(--c-slate);position:relative;padding:0.35vw 0;transition:color 0.25s;}
.index_nav a::after{content:'';position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--c-red);transform:scaleX(0);transform-origin:left;transition:transform 0.3s;}
.index_nav a:hover{color:var(--c-ink);}
.index_nav a:hover::after{transform:scaleX(1);}
.index_nav-actions{display:flex;align-items:center;gap:1vw;}
.index_burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;}
.index_burger span{display:block;width:22px;height:2px;background:var(--c-ink);margin:0 auto;transition:transform 0.3s,opacity 0.3s;}
.index_burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.index_burger.is-open span:nth-child(2){opacity:0;}
.index_burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Mobile drawer ---------- */
.index_drawer{position:fixed;inset:0;top:64px;z-index:99;background:var(--c-surface);transform:translateY(-105%);transition:transform 0.35s ease;display:none;}
.index_drawer.is-open{transform:translateY(0);}
.index_drawer-nav{display:flex;flex-direction:column;gap:4px;padding:28px 24px;}
.index_drawer-nav a{font-size:19px;font-weight:500;color:var(--c-ink);padding:13px 4px;border-bottom:1px solid var(--c-line);}
.index_drawer-nav .index_btn{margin-top:18px;border-bottom:none;padding:14px;font-size:16px;}
.index_drawer-nav a.index_btn--solid{color:#fff;}

/* ---------- Hero ---------- */
.index_hero{position:relative;height:calc(100vh - var(--nav-h));margin-top:var(--nav-h);background:var(--c-dark) url('../images/index_banner_main.webp') center/cover no-repeat;display:flex;align-items:center;}
.index_hero::before{content:'';position:absolute;inset:0;background:rgba(16,18,22,0);}
.index_hero .index_container{position:relative;z-index:2;}
.index_hero-content{max-width:38vw;}
.index_hero h1{font-size:3.7vw;font-weight:900;line-height:1.12;color:#fff;letter-spacing:-0.01em;}
.index_hero-sub{margin-top:1.4vw;font-size:1.02vw;line-height:1.75;color:#C3C9D1;max-width:32vw;}
.index_hero-cta{margin-top:2.2vw;display:flex;gap:1vw;}

/* ---------- Section shared ---------- */
.index_section{padding:5.5vw 0;}
.index_section-head{max-width:46vw;margin-bottom:3.2vw;}
.index_section-head h2{font-size:2.6vw;font-weight:700;line-height:1.2;letter-spacing:-0.01em;}
.index_section-head p{margin-top:0.9vw;font-size:0.98vw;color:var(--c-slate);line-height:1.75;}
.index_section-head--dark h2{color:#fff;}
.index_section-head--dark p{color:var(--c-mist);}

/* ---------- Presses ---------- */
.index_presses{background:var(--c-bg) url('../images/index_bg_schematic_light.webp') center/cover no-repeat;}
.index_press-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3vw;}
.index_press-card{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;transition:transform 0.3s,box-shadow 0.3s;}
.index_press-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-red);transform:scaleX(0);transform-origin:left;transition:transform 0.35s;z-index:2;}
.index_press-card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(21,24,28,0.12);}
.index_press-card:hover::before{transform:scaleX(1);}
.index_press-media{aspect-ratio:4/3;overflow:hidden;}
.index_press-media img{width:100%;height:100%;object-fit:cover;transition:transform 0.5s;}
.index_press-card:hover .index_press-media img{transform:scale(1.05);}
.index_press-body{padding:1.5vw 1.6vw 1.7vw;}
.index_press-body h3{font-size:1.14vw;font-weight:700;}
.index_press-body p{margin-top:0.6vw;font-size:0.88vw;color:var(--c-slate);line-height:1.7;}
.index_press-link{display:inline-flex;align-items:center;gap:0.4vw;margin-top:1vw;font-size:0.86vw;font-weight:500;color:var(--c-red);}
.index_press-link i{transition:transform 0.3s;}
.index_press-card:hover .index_press-link i{transform:translateX(4px);}

/* ---------- How it works ---------- */
.index_how{background:var(--c-dark);background-image:repeating-linear-gradient(0deg,rgba(255,255,255,0.025) 0,rgba(255,255,255,0.025) 1px,transparent 1px,transparent 72px),repeating-linear-gradient(90deg,rgba(255,255,255,0.025) 0,rgba(255,255,255,0.025) 1px,transparent 1px,transparent 72px);}
.index_how .index_section-head{margin-left:auto;margin-right:auto;text-align:center;}
.index_how-grid{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:2.6vw;align-items:center;}
.index_how-col{display:flex;flex-direction:column;gap:2.4vw;}
.index_how-item{display:flex;gap:1vw;}
.index_how-num{font-size:1.5vw;font-weight:900;color:var(--c-red);line-height:1.1;}
.index_how-item strong{display:block;font-size:1.02vw;font-weight:700;color:#fff;}
.index_how-item p{margin-top:0.45vw;font-size:0.86vw;color:var(--c-mist);line-height:1.7;}
.index_how-media img{width:100%;border-radius:var(--radius);border:1px solid var(--c-line-dark);}

/* ---------- Industries ---------- */
.index_industries{padding-bottom:0;}
.index_industry-list{display:flex;flex-direction:column;gap:6px;}
.index_industry-row{position:relative;height:19vw;overflow:hidden;display:flex;align-items:center;}
.index_industry-row img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 0.6s;}
.index_industry-row:hover img{transform:scale(1.04);}
.index_industry-veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,20,24,0.85) 0%,rgba(18,20,24,0.5) 45%,rgba(18,20,24,0.08) 100%);}
.index_industry-copy{position:relative;z-index:2;}
.index_industry-copy h3{font-size:1.55vw;font-weight:700;color:#fff;}
.index_industry-copy p{margin-top:0.5vw;font-size:0.92vw;color:#C3C9D1;max-width:30vw;line-height:1.7;}

/* ---------- Process ---------- */
.index_process{background:var(--c-bg);}
.index_process-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.3vw;}
.index_process-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);padding:2.2vw 2.2vw 2.4vw;}
.index_process-num{display:block;font-size:2.4vw;font-weight:900;color:transparent;-webkit-text-stroke:1px var(--c-red);line-height:1;}
.index_process-card strong{display:block;margin-top:1.1vw;font-size:1.1vw;font-weight:700;}
.index_process-card p{margin-top:0.55vw;font-size:0.9vw;color:var(--c-slate);line-height:1.7;}

/* ---------- About ---------- */
.index_about{background:var(--c-surface);}
.index_about-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:5vw;align-items:center;}
.index_about-copy h2{font-size:2.6vw;font-weight:700;line-height:1.2;letter-spacing:-0.01em;}
.index_about-copy > p{margin-top:1vw;font-size:0.96vw;color:var(--c-slate);line-height:1.75;}
.index_about-list{margin:1.6vw 0 2.2vw;display:flex;flex-direction:column;gap:0.85vw;}
.index_about-list li{display:flex;align-items:flex-start;gap:0.65vw;font-size:0.92vw;color:var(--c-ink);line-height:1.6;}
.index_about-list i{color:var(--c-red);font-size:1.15vw;flex-shrink:0;margin-top:0.1vw;}
.index_about-media{position:relative;padding:0 0 3.4vw 3.4vw;}
.index_about-photo{width:100%;border-radius:var(--radius);}
.index_about-photo--small{position:absolute;left:0;bottom:0;width:46%;border:6px solid #fff;border-radius:var(--radius);box-shadow:0 18px 40px rgba(21,24,28,0.2);}

/* ---------- FAQ ---------- */
.index_faq{background:var(--c-bg);}
.index_faq-grid{display:grid;grid-template-columns:0.75fr 1.25fr;gap:5vw;align-items:start;}
.index_faq-head h2{font-size:2.6vw;font-weight:700;line-height:1.2;}
.index_faq-head p{margin:1vw 0 1.8vw;font-size:0.95vw;color:var(--c-slate);line-height:1.75;}
.index_faq-list{display:flex;flex-direction:column;gap:0.8vw;}
.index_faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;}
.index_faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:1vw;padding:1.3vw 1.6vw;text-align:left;}
.index_faq-q h3{font-size:1.02vw;font-weight:700;color:var(--c-ink);}
.index_faq-q i{color:var(--c-red);font-size:1.2vw;transition:transform 0.3s;flex-shrink:0;}
.index_faq-item.is-open .index_faq-q i{transform:rotate(45deg);}
.index_faq-a{max-height:0;overflow:hidden;transition:max-height 0.4s ease;}
.index_faq-a p{padding:0 1.6vw 1.4vw;font-size:0.9vw;color:var(--c-slate);line-height:1.75;}

/* ---------- Contact ---------- */
.index_contact{background:var(--c-dark) url('../images/index_bg_schematic_dark.webp') center/cover no-repeat;}
.index_contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:5vw;align-items:center;}
.index_contact-copy h2{font-size:2.6vw;font-weight:700;color:#fff;line-height:1.2;}
.index_contact-copy > p{margin-top:1vw;font-size:0.96vw;color:var(--c-mist);line-height:1.75;max-width:28vw;}
.index_contact-list{margin-top:2.2vw;display:flex;flex-direction:column;gap:1.1vw;}
.index_contact-list li{display:flex;align-items:center;gap:0.9vw;font-size:0.95vw;color:#C3C9D1;}
.index_contact-list i{display:flex;align-items:center;justify-content:center;width:2.5vw;height:2.5vw;background:rgba(255,255,255,0.07);border:1px solid var(--c-line-dark);border-radius:var(--radius);color:var(--c-red);font-size:1.15vw;flex-shrink:0;}
.index_contact-list a:hover{color:#fff;}
.index_contact-form{background:var(--c-surface);border-radius:var(--radius);padding:2.4vw;}
.index_form-row{display:grid;grid-template-columns:1fr 1fr;gap:1vw;}
.index_form-field{margin-bottom:1.1vw;}
.index_form-field label{display:block;font-size:0.84vw;font-weight:500;margin-bottom:0.4vw;}
.index_form-field input,.index_form-field textarea{width:100%;padding:0.8vw 0.95vw;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--radius);font-family:var(--font);font-size:0.9vw;color:var(--c-ink);transition:border-color 0.25s;resize:vertical;}
.index_form-field input:focus,.index_form-field textarea:focus{outline:none;border-color:var(--c-red);}
.index_form-field input::placeholder,.index_form-field textarea::placeholder{color:#A6ACB4;}
.index_form-note{margin-top:0.9vw;font-size:0.85vw;color:var(--c-red);text-align:center;min-height:1.2em;}

/* ---------- Footer ---------- */
.index_footer{background:var(--c-dark-2);color:var(--c-mist);}
.index_footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:3vw;padding:4.2vw 0 3vw;}
.index_brand--footer .index_brand-name{color:#fff;}
.index_footer-brand p{margin-top:1.1vw;font-size:0.88vw;line-height:1.7;max-width:18vw;}
.index_footer-col{display:flex;flex-direction:column;gap:0.7vw;}
.index_footer-title{font-size:0.95vw;font-weight:700;color:#fff;margin-bottom:0.35vw;}
.index_footer-col a,.index_footer-col span{font-size:0.87vw;color:var(--c-mist);transition:color 0.25s;}
.index_footer-col a:hover{color:#fff;}
.index_footer-bar{border-top:1px solid #23272D;}
.index_footer-bar-inner{display:flex;justify-content:space-between;gap:2vw;padding:1.4vw 0;font-size:0.82vw;color:#6C737C;}

/* ---------- Reveal animations ---------- */
.index_reveal{opacity:0;transform:translateY(28px);transition:opacity 0.7s cubic-bezier(0.22,0.61,0.36,1),transform 0.7s cubic-bezier(0.22,0.61,0.36,1);}
.index_reveal--left{opacity:0;transform:translateX(-38px);transition:opacity 0.7s cubic-bezier(0.22,0.61,0.36,1),transform 0.7s cubic-bezier(0.22,0.61,0.36,1);}
.index_reveal.is-visible,.index_reveal--left.is-visible{opacity:1;transform:translate(0,0);}
@media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    .index_reveal,.index_reveal--left{opacity:1;transform:none;transition:none;}
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:1200px){
    :root{--nav-h:64px;}
    .index_container{width:90%;}
    .index_btn{padding:11px 22px;font-size:14px;gap:6px;}
    .index_brand-mark{width:34px;height:34px;font-size:13px;}
    .index_brand-name{font-size:16px;}
    .index_nav{gap:24px;}
    .index_nav a{font-size:14px;}
    .index_hero h1{font-size:44px;}
    .index_hero-content{max-width:520px;}
    .index_hero-sub{font-size:15px;max-width:440px;margin-top:16px;}
    .index_hero-cta{margin-top:26px;gap:12px;}
    .index_section{padding:64px 0;}
    .index_section-head{max-width:640px;margin-bottom:36px;}
    .index_section-head h2,.index_about-copy h2,.index_faq-head h2,.index_contact-copy h2{font-size:30px;}
    .index_section-head p{font-size:15px;margin-top:10px;}
    .index_press-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
    .index_press-body{padding:18px 20px 22px;}
    .index_press-body h3{font-size:17px;}
    .index_press-body p{font-size:14px;margin-top:8px;}
    .index_press-link{font-size:13px;margin-top:14px;gap:5px;}
    .index_how-grid{gap:28px;}
    .index_how-col{gap:26px;}
    .index_how-item{gap:12px;}
    .index_how-num{font-size:19px;}
    .index_how-item strong{font-size:15px;}
    .index_how-item p{font-size:13px;margin-top:5px;}
    .index_industry-row{height:250px;}
    .index_industry-copy h3{font-size:22px;}
    .index_industry-copy p{font-size:14px;max-width:420px;margin-top:6px;}
    .index_process-grid{gap:16px;}
    .index_process-card{padding:26px;}
    .index_process-num{font-size:30px;}
    .index_process-card strong{font-size:16px;margin-top:14px;}
    .index_process-card p{font-size:14px;margin-top:7px;}
    .index_about-grid{gap:44px;}
    .index_about-copy > p{font-size:15px;margin-top:12px;}
    .index_about-list{margin:20px 0 26px;gap:11px;}
    .index_about-list li{font-size:14px;gap:9px;}
    .index_about-list i{font-size:17px;}
    .index_about-media{padding:0 0 36px 36px;}
    .index_faq-grid{gap:40px;}
    .index_faq-head p{font-size:14px;margin:12px 0 20px;}
    .index_faq-list{gap:10px;}
    .index_faq-q{padding:16px 20px;gap:12px;}
    .index_faq-q h3{font-size:15px;}
    .index_faq-q i{font-size:18px;}
    .index_faq-a p{padding:0 20px 18px;font-size:14px;}
    .index_contact-grid{gap:40px;}
    .index_contact-copy > p{font-size:15px;max-width:420px;}
    .index_contact-list{margin-top:24px;gap:14px;}
    .index_contact-list li{font-size:14px;gap:12px;}
    .index_contact-list i{width:38px;height:38px;font-size:17px;}
    .index_contact-form{padding:28px;}
    .index_form-row{gap:14px;}
    .index_form-field{margin-bottom:14px;}
    .index_form-field label{font-size:13px;margin-bottom:6px;}
    .index_form-field input,.index_form-field textarea{padding:11px 13px;font-size:14px;}
    .index_form-note{font-size:13px;margin-top:12px;}
    .index_footer-grid{padding:48px 0 36px;gap:32px;}
    .index_footer-brand p{font-size:13px;max-width:260px;margin-top:14px;}
    .index_footer-title{font-size:15px;margin-bottom:4px;}
    .index_footer-col{gap:9px;}
    .index_footer-col a,.index_footer-col span{font-size:13px;}
    .index_footer-bar-inner{padding:18px 0;font-size:12px;}
}

@media (max-width:1024px){
    .index_how-grid{grid-template-columns:1fr;gap:32px;}
    .index_how-media{order:-1;max-width:520px;margin:0 auto;}
    .index_how-col{gap:22px;}
    .index_about-grid{grid-template-columns:1fr;}
    .index_faq-grid{grid-template-columns:1fr;gap:28px;}
    .index_contact-grid{grid-template-columns:1fr;}
    .index_footer-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:768px){
    .index_nav{display:none;}
    .index_nav-actions .index_btn{display:none;}
    .index_burger{display:flex;}
    .index_drawer{display:block;}
    .index_hero{background-position:68% center;}
    .index_hero::before{background:rgba(16,18,22,0.52);}
    .index_hero h1{font-size:36px;}
    .index_hero-sub{font-size:14px;}
    .index_press-grid{grid-template-columns:1fr;}
    .index_process-grid{grid-template-columns:1fr;}
    .index_industry-row{height:220px;}
    .index_industry-copy p{max-width:85%;}
    .index_footer-bar-inner{flex-direction:column;gap:4px;align-items:flex-start;}
}

@media (max-width:480px){
    .index_hero h1{font-size:30px;}
    .index_hero-cta{flex-direction:column;align-items:stretch;}
    .index_hero-cta .index_btn{width:100%;padding:13px;}
    .index_section{padding:52px 0;}
    .index_section-head h2,.index_about-copy h2,.index_faq-head h2,.index_contact-copy h2{font-size:25px;}
    .index_industry-row{height:200px;}
    .index_industry-copy h3{font-size:19px;}
    .index_about-media{padding:0 0 28px 24px;}
    .index_contact-form{padding:20px;}
    .index_form-row{grid-template-columns:1fr;gap:0;}
    .index_footer-grid{grid-template-columns:1fr;gap:24px;}
}