/* ============================================================
   Suzhou Aoshang — trashroom.wa-ya.cn · Hoja de estilos principal
   ============================================================ */
:root{
  --brand:#0c7a4e;
  --brand-600:#0a6a44;
  --brand-700:#08573a;
  --brand-050:#eaf6f0;
  --ink:#101b15;
  --ink-2:#33423a;
  --muted:#5f6f66;
  --line:#e3e9e4;
  --bg:#f7f9f7;
  --surface:#ffffff;
  --radius:18px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(16,27,21,.05),0 2px 6px rgba(16,27,21,.07);
  --shadow-md:0 10px 28px rgba(16,27,21,.11);
  --shadow-lg:0 24px 56px rgba(10,30,20,.20);
  --container:1180px;
  --font:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;
     -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{line-height:1.18;font-weight:800;letter-spacing:-.02em;margin:0 0 .6em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
svg{display:inline-block;vertical-align:middle}

.container{max-width:var(--container);margin-inline:auto;padding-inline:24px}
.container.narrow{max-width:900px}
.center{text-align:center;margin-top:44px}
.section{padding:88px 0}
.section-tight{padding:48px 0}
.section-alt{background:#fff}
.icon-svg{width:24px;height:24px;flex:none}

/* Accesibilidad */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:12px 20px;
  border-radius:0 0 12px 0;z-index:200;font-weight:700}
.skip-link:focus{left:0}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px}

/* Tipografía auxiliar */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:.78rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.eyebrow .icon-svg{width:17px;height:17px}
.lead{font-size:1.12rem;color:var(--muted);max-width:64ch}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center}
.section-head h2{font-size:clamp(1.7rem,3vw,2.3rem)}
.section-head p{color:var(--muted);font-size:1.04rem}
.prose p{color:var(--ink-2);font-size:1.03rem}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:700;
  border-radius:999px;padding:14px 28px;font-size:1rem;border:2px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease;
  font-family:inherit;line-height:1.2}
.btn svg,.text-link svg,.cat-link svg{width:18px;height:18px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px rgba(12,122,78,.30)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-700);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--brand-700)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-block{width:100%}

/* Encabezado */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .3s,box-shadow .3s}
.site-header.scrolled{border-color:var(--line);box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;gap:28px;height:78px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;flex:none}
.brand img{height:46px;width:auto;border-radius:8px}
.brand-text{font-size:1.05rem;line-height:1.15;color:var(--ink)}
.brand-text small{display:block;font-weight:600;font-size:.64rem;color:var(--muted);
  letter-spacing:.1em;text-transform:uppercase}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.main-nav > a{padding:10px 14px;border-radius:10px;font-weight:600;color:var(--ink-2);font-size:.95rem;
  transition:background .2s,color .2s}
.main-nav > a:hover{background:var(--brand-050);color:var(--brand-700)}
.main-nav > a.active{background:var(--brand-050);color:var(--brand-700)}
.header-cta{margin-left:10px;padding:12px 22px !important}
.header-cta:hover{color:#fff !important;background:var(--brand-600) !important}
.nav-toggle{display:none;width:46px;height:46px;border:1.5px solid var(--line);background:#fff;
  border-radius:12px;cursor:pointer;margin-left:auto;place-items:center;gap:0}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;
  margin:2.5px auto;transition:transform .25s,opacity .25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Héroe de portada */
.hero{position:relative;overflow:hidden;color:#fff;
  background:radial-gradient(1100px 520px at 88% -12%,rgba(159,227,195,.16),transparent),
             linear-gradient(135deg,#0c1f16 0%,#0f3d28 55%,#115c3c 100%)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:54px 54px}
.hero-inner{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;
  align-items:center;padding:96px 0 88px}
.hero .eyebrow{color:#9fe3c3}
.hero h1{color:#fff;font-size:clamp(2.1rem,4.4vw,3.3rem);margin-bottom:.5em}
.hero .lead{color:rgba(255,255,255,.84);font-size:1.12rem}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.hero .btn-light{border:2px solid rgba(255,255,255,.25);background:rgba(255,255,255,.10);color:#fff}
.hero .btn-light:hover{background:rgba(255,255,255,.18)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:678/421;object-fit:cover;border-radius:24px;
  border:1px solid rgba(255,255,255,.18);box-shadow:var(--shadow-lg)}
.float-card{position:absolute;left:-22px;bottom:-26px;background:#fff;color:var(--ink);
  border-radius:16px;padding:16px 20px;box-shadow:var(--shadow-lg);display:flex;gap:14px;
  align-items:center}
.float-card .icon-svg{width:30px;height:30px;color:var(--brand)}
.float-card strong{display:block;font-size:1.35rem;color:var(--brand-700);line-height:1.1}
.float-card span{font-size:.82rem;color:var(--muted);font-weight:600}

/* Estadísticas */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 20px;
  text-align:center;box-shadow:var(--shadow-sm)}
.stat strong{display:block;font-size:2rem;font-weight:800;color:var(--brand-700);letter-spacing:-.02em}
.stat span{display:block;margin-top:6px;color:var(--muted);font-weight:600;font-size:.9rem}

/* Categorías */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cat-card{display:flex;flex-direction:column;gap:12px;min-height:250px;border-radius:22px;padding:30px 26px;
  color:#fff;background:linear-gradient(155deg,#0c1f16 0%,#124530 70%,#155a3b 100%);
  transition:transform .28s ease,box-shadow .28s ease;position:relative;overflow:hidden}
.cat-card::after{content:"";position:absolute;inset:0;opacity:.35;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:36px 36px}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.cat-card .icon{width:52px;height:52px;border-radius:14px;background:rgba(159,227,195,.16);
  color:#9fe3c3;display:grid;place-items:center;margin-bottom:4px}
.cat-card h3{font-size:1.12rem;color:#fff;position:relative}
.cat-card p{color:rgba(255,255,255,.75);font-size:.92rem;position:relative}
.cat-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-weight:700;
  color:#9fe3c3;font-size:.94rem;position:relative}

/* Tarjetas de producto */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .28s ease,box-shadow .28s ease,border-color .28s}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
.product-card .thumb{position:relative;display:block;aspect-ratio:4/3;overflow:hidden;background:var(--brand-050)}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.product-card:hover .thumb img{transform:scale(1.05)}
.chip{position:absolute;top:14px;left:14px;background:rgba(12,31,22,.72);color:#fff;
  backdrop-filter:blur(4px);padding:6px 13px;border-radius:999px;font-size:.74rem;font-weight:700;
  letter-spacing:.03em}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:1.13rem;margin:0}
.card-body h3 a:hover{color:var(--brand-700)}
.card-body p{color:var(--muted);font-size:.93rem;margin:0}
.text-link{margin-top:auto;display:inline-flex;align-items:center;gap:7px;font-weight:700;
  color:var(--brand-700);font-size:.94rem;transition:gap .2s}
.text-link:hover{gap:11px}

/* Ventajas */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;
  transition:transform .25s ease,box-shadow .25s ease}
.section-alt .adv-card{background:var(--bg)}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.adv-card .icon{width:52px;height:52px;border-radius:14px;background:var(--brand-050);
  color:var(--brand-700);display:grid;place-items:center;margin-bottom:18px}
.adv-card h3{font-size:1.08rem;margin-bottom:.45em}
.adv-card p{color:var(--muted);font-size:.94rem;margin:0}

/* Proceso */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .25s ease,box-shadow .25s ease}
.section-alt .step{background:var(--bg)}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.step .num{display:inline-block;font-size:2.1rem;font-weight:800;color:var(--brand);opacity:.28;
  line-height:1;margin-bottom:12px}
.step h3{font-size:1.02rem;margin-bottom:.4em}
.step p{color:var(--muted);font-size:.9rem;margin:0}

/* Banda de compromisos */
.band{background:linear-gradient(140deg,#0c1f16,#0f4a30);border-radius:26px;color:#fff;
  padding:60px 56px;box-shadow:var(--shadow-lg)}
.band .eyebrow{color:#9fe3c3}
.band h2{font-size:clamp(1.6rem,2.8vw,2.2rem)}
.band-head{max-width:640px;margin-bottom:44px}
.commit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.commitment{display:flex;gap:16px;align-items:flex-start}
.commitment .icon{flex:none;width:44px;height:44px;border-radius:12px;background:rgba(159,227,195,.15);
  color:#9fe3c3;display:grid;place-items:center}
.commitment h3{font-size:1rem;margin-bottom:.3em;color:#fff}
.commitment p{color:rgba(255,255,255,.72);font-size:.9rem;margin:0}

/* Split (texto + imagen) */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-media img{border-radius:24px;box-shadow:var(--shadow-md);aspect-ratio:4/3;object-fit:cover;width:100%}
.split-copy h2{font-size:clamp(1.6rem,2.8vw,2.2rem)}
.check-list{display:grid;gap:12px;margin:22px 0 30px}
.check-list li{display:flex;gap:11px;align-items:flex-start;color:var(--ink-2);font-size:.98rem;font-weight:500}
.check-list .icon-svg{width:20px;height:20px;color:var(--brand);margin-top:3px}

/* Preguntas frecuentes */
.faq{display:grid;gap:14px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:box-shadow .25s,border-color .25s}
.faq details[open]{border-color:#cfe6da;box-shadow:var(--shadow-sm)}
.faq summary{cursor:pointer;padding:20px 24px;font-weight:700;font-size:1rem;display:flex;
  justify-content:space-between;gap:18px;align-items:center;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq .faq-ind{position:relative;flex:none;width:22px;height:22px;border-radius:50%;
  background:var(--brand-050);color:var(--brand-700)}
.faq .faq-ind::before,.faq .faq-ind::after{content:"";position:absolute;background:currentColor;
  top:50%;left:50%;transform:translate(-50%,-50%)}
.faq .faq-ind::before{width:11px;height:2px}
.faq .faq-ind::after{width:2px;height:11px;transition:opacity .2s}
.faq details[open] .faq-ind::after{opacity:0}
.faq .faq-a{padding:0 24px 22px;color:var(--muted);font-size:.97rem;max-width:75ch}

/* Banda CTA */
.cta-band{background:linear-gradient(120deg,#0c1f16,#0f4a30);border-radius:26px;color:#fff;
  padding:56px;display:flex;justify-content:space-between;align-items:center;gap:36px;
  box-shadow:var(--shadow-lg);flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:.35em}
.cta-band p{color:rgba(255,255,255,.78);margin:0;max-width:56ch}
.cta-band .btn{flex:none}

/* Héroe interior */
.page-hero{background:radial-gradient(900px 420px at 85% -20%,rgba(159,227,195,.16),transparent),
  linear-gradient(135deg,#0c1f16,#0f4a30);color:#fff;padding:56px 0 52px}
.page-hero h1{color:#fff;font-size:clamp(1.9rem,3.6vw,2.7rem);margin-bottom:.4em}
.page-hero .lead{color:rgba(255,255,255,.8)}
.breadcrumb{display:flex;flex-wrap:wrap;gap:9px;font-size:.86rem;font-weight:600;
  color:rgba(255,255,255,.65);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.crumb-sep{opacity:.5}

/* Ficha de producto */
.product-top{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:56px 0 8px}
.product-media img{border-radius:22px;box-shadow:var(--shadow-md);aspect-ratio:4/3;object-fit:cover;
  width:100%;background:var(--brand-050)}
.product-summary h2{font-size:1.35rem;margin:6px 0 10px}
.product-summary .eyebrow{margin-bottom:4px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:10px}
.chips{display:flex;flex-wrap:wrap;gap:11px;justify-content:center}
.pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:9px 18px;font-weight:600;font-size:.9rem;color:var(--ink-2)}
.anchor-nav{display:flex;gap:11px;flex-wrap:wrap;justify-content:center;margin:6px 0 10px}
.anchor-nav .pill{transition:border-color .2s,color .2s,transform .2s}
.anchor-nav .pill:hover{border-color:var(--brand);color:var(--brand-700);transform:translateY(-2px)}
.anchor-nav strong{color:var(--brand-700)}

/* Tabla de especificaciones */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
.spec-table{width:100%;border-collapse:collapse;min-width:560px}
.spec-table th,.spec-table td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line);
  vertical-align:top;font-size:.96rem}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.spec-table th{width:32%;background:var(--brand-050);font-weight:700;color:var(--brand-700)}

/* Lista técnica */
.tech-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 32px;max-width:1000px;margin:0 auto}
.tech-list li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:16px 20px;font-size:.95rem;color:var(--ink-2)}
.tech-list .icon-svg{width:20px;height:20px;color:var(--brand);margin-top:3px}

/* Contacto */
.contact-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:52px;align-items:start}
.contact-info h2{font-size:clamp(1.5rem,2.6vw,2rem)}
.contact-info > p{color:var(--muted)}
.info-list{display:grid;gap:20px;margin-top:30px}
.info-list li{display:flex;gap:15px;align-items:flex-start}
.info-list .icon{flex:none;width:46px;height:46px;border-radius:13px;background:var(--brand-050);
  color:var(--brand-700);display:grid;place-items:center}
.info-list h3{font-size:.98rem;margin-bottom:.2em}
.info-list p{color:var(--muted);font-size:.92rem;margin:0}
.form-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:38px;box-shadow:var(--shadow-sm)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:700;font-size:.88rem;margin-bottom:7px;color:var(--ink-2)}
.field input,.field select,.field textarea{width:100%;padding:13px 16px;border:1.5px solid var(--line);
  border-radius:12px;font:inherit;font-size:.97rem;background:#fff;color:var(--ink);transition:border-color .2s,box-shadow .2s}
.field textarea{resize:vertical;min-height:130px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(12,122,78,.12)}
.form-privacy{font-size:.82rem;color:var(--muted);margin:2px 0 18px}
.hp-field{position:absolute !important;left:-9999px !important;width:1px;height:1px;overflow:hidden}
.alert{display:none;border-radius:14px;padding:18px 22px;font-weight:600;margin-top:20px}
.alert.show{display:block}
.alert-success{background:#e8f7ef;border:1.5px solid #b7e4cc;color:#0a5c3a}
.alert-error{background:#fdeeee;border:1.5px solid #f3c8c8;color:#a03030}

/* Pie de página */
.site-footer{background:#0c1712;color:#c7d2cb;margin-top:0;padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.35fr .8fr 1.1fr 1.15fr;gap:44px;padding-bottom:52px}
.site-footer h4{color:#fff;font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:18px}
.logo-pill{display:inline-block;background:#fff;border-radius:12px;padding:7px 11px;margin-bottom:18px}
.logo-pill img{height:42px;width:auto}
.footer-brand p{color:#9fb1a5;font-size:.93rem}
.footer-addr{font-size:.88rem}
.footer-links{display:grid;gap:10px}
.footer-links a{color:#c7d2cb;font-size:.93rem;transition:color .2s}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact p{color:#9fb1a5;font-size:.93rem;margin-bottom:20px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;
  justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.84rem;color:#8fa396}

/* Animación de aparición */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* ── Responsive ── */
@media (max-width:1040px){
  .hero-inner{grid-template-columns:1fr;padding:72px 0 64px;gap:44px}
  .hero-media{max-width:640px}
  .float-card{left:14px}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .commit-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .product-top{grid-template-columns:1fr;gap:34px}
  .contact-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:38px}
  .tech-list{grid-template-columns:1fr}
  .band{padding:48px 40px}
  .cta-band{padding:44px 40px}
}
@media (max-width:960px){
  .nav-toggle{display:grid}
  .main-nav{position:fixed;top:78px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:stretch;padding:14px 24px 26px;gap:2px;box-shadow:var(--shadow-md);
    border-bottom:1px solid var(--line);opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .25s,transform .25s,visibility .25s;z-index:55}
  .main-nav.open{opacity:1;visibility:visible;transform:none}
  .main-nav > a{padding:15px 12px;border-bottom:1px solid var(--line);border-radius:0;font-size:1rem}
  .header-cta{margin:14px 0 0;text-align:center;justify-content:center;border-bottom:0 !important}
}
@media (max-width:640px){
  .section{padding:64px 0}
  .grid-3,.grid-2,.cat-grid,.adv-grid,.steps-grid,.commit-grid,.form-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:2rem}
  .float-card{padding:12px 16px;bottom:-16px}
  .float-card strong{font-size:1.1rem}
  .band{padding:40px 26px;border-radius:20px}
  .cta-band{padding:36px 26px;border-radius:20px}
  .form-card{padding:26px 20px}
  .brand img{height:40px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}