/* SM Peptide Health — light health/wellness theme */
:root{
  --teal:#0e7f6f; --teal-d:#0a5f53; --teal-l:#e3f4ef; --mint:#58c3a7;
  --ink:#16332d; --mut:#5b7a72; --bg:#f6fbf9; --card:#fff; --line:#dceee8;
  --gold:#e8a13d; --wa:#25d366; --rad:14px; --sh:0 6px 24px rgba(14,127,111,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}
img{max-width:100%;display:block}
a{color:var(--teal);text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.ico{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-row{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem;color:var(--ink);white-space:nowrap}
.brand svg{width:34px;height:34px}
.brand b{color:var(--teal)}
.site-head nav{display:flex;gap:26px;margin-left:auto}
.site-head nav a{color:var(--ink);font-weight:600;font-size:.95rem;padding:6px 2px;border-bottom:2px solid transparent}
.site-head nav a:hover,.site-head nav a.on{color:var(--teal);border-color:var(--teal)}
.nav-right{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;background:var(--teal-l);border-radius:20px;padding:3px}
.lang-switch button{border:0;background:transparent;padding:4px 12px;border-radius:16px;font-size:.82rem;font-weight:700;color:var(--teal-d);cursor:pointer}
.lang-switch button.on{background:var(--teal);color:#fff}
.burger{display:none;border:0;background:none;cursor:pointer;padding:6px}
.burger span{display:block;width:22px;height:2.5px;background:var(--ink);margin:4px 0;border-radius:2px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--teal);color:#fff;font-weight:700;padding:12px 26px;border-radius:30px;border:0;cursor:pointer;font-size:.95rem;transition:.2s}
.btn:hover{background:var(--teal-d);transform:translateY(-2px)}
.btn-wa{background:var(--wa)} .btn-wa:hover{background:#1da851}
.btn-ghost{background:#fff;color:var(--teal-d);border:1.5px solid var(--teal)}
.btn-ghost:hover{background:var(--teal-l)}
.btn-sm{padding:8px 18px;font-size:.85rem}

/* hero */
.hero{position:relative;color:#fff;overflow:hidden}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero .veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,54,46,.92) 20%,rgba(10,95,83,.72) 55%,rgba(10,95,83,.30))}
.hero .wrap{position:relative;padding:110px 20px 120px;max-width:1200px}
.pill{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);border-radius:30px;padding:6px 16px;font-size:.85rem;font-weight:600}
.hero h1{font-size:clamp(1.9rem,4.2vw,3.2rem);line-height:1.2;margin:18px 0 14px;max-width:640px}
.hero h1 em{font-style:normal;color:#8fe6cf}
.hero p.sub{max-width:560px;font-size:1.06rem;color:#d9efe8;margin-bottom:28px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap}
.hero .trio{display:flex;gap:26px;margin-top:44px;flex-wrap:wrap}
.hero .trio div{display:flex;gap:10px;align-items:center;font-size:.9rem;color:#d9efe8}
.hero .trio .ico{width:20px;height:20px;color:#8fe6cf}

/* sections */
section{padding:76px 0}
.sec-head{text-align:center;max-width:640px;margin:0 auto 44px}
.sec-head h2{font-size:clamp(1.5rem,3vw,2.1rem);color:var(--ink)}
.sec-head h2 b{color:var(--teal)}
.sec-head p{color:var(--mut);margin-top:10px}
.kicker{display:inline-block;color:var(--teal);font-weight:800;letter-spacing:.12em;text-transform:uppercase;font-size:.78rem;margin-bottom:10px}

/* category cards */
.cat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.cat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--rad);padding:28px 18px;text-align:center;transition:.25s;box-shadow:var(--sh)}
.cat-card:hover{transform:translateY(-6px);border-color:var(--mint)}
.cat-card .ci{width:58px;height:58px;margin:0 auto 14px;border-radius:16px;background:var(--teal-l);color:var(--teal);display:flex;align-items:center;justify-content:center}
.cat-card .ci .ico{width:30px;height:30px}
.cat-card h3{font-size:1rem;color:var(--ink)}
.cat-card p{font-size:.8rem;color:var(--mut);margin-top:6px}

/* product cards */
.chips{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:36px}
.chip{border:1.5px solid var(--line);background:#fff;color:var(--mut);border-radius:24px;padding:8px 20px;font-size:.88rem;font-weight:600;cursor:pointer;transition:.2s}
.chip.on,.chip:hover{background:var(--teal);border-color:var(--teal);color:#fff}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.p-card{background:var(--card);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;transition:.25s;box-shadow:var(--sh);display:flex;flex-direction:column}
.p-card:hover{transform:translateY(-6px);border-color:var(--mint)}
.p-card .imgbox{background:linear-gradient(160deg,#f2faf7,#e3f4ef);padding:18px;display:flex;justify-content:center}
.p-card .imgbox img{height:170px;object-fit:contain}
.p-card .pc-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.p-card .cat-tag{font-size:.72rem;font-weight:800;letter-spacing:.06em;color:var(--teal);text-transform:uppercase}
.p-card h3{font-size:1rem;color:var(--ink)}
.p-card .more{margin-top:auto;color:var(--teal);font-weight:700;font-size:.88rem;display:inline-flex;align-items:center;gap:6px}
.p-card:hover .more{gap:10px}

/* feature split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split .img-side img{border-radius:18px;box-shadow:var(--sh)}
.feat-list{display:grid;gap:20px;margin-top:26px}
.feat{display:flex;gap:16px}
.feat .fi{flex:none;width:48px;height:48px;border-radius:12px;background:var(--teal-l);color:var(--teal);display:flex;align-items:center;justify-content:center}
.feat h4{font-size:1rem}
.feat p{font-size:.9rem;color:var(--mut)}

/* stats band */
.band{background:linear-gradient(115deg,var(--teal-d),var(--teal));color:#fff}
.band .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.band .num{font-size:2.2rem;font-weight:800;color:#8fe6cf}
.band .lab{font-size:.9rem;color:#d9efe8}

/* guarantee strip */
.g-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.g-item{background:var(--card);border:1px solid var(--line);border-radius:var(--rad);padding:22px;display:flex;gap:14px;align-items:flex-start;box-shadow:var(--sh)}
.g-item .fi{flex:none;width:42px;height:42px;border-radius:11px;background:#fff3e0;color:var(--gold);display:flex;align-items:center;justify-content:center}
.g-item h4{font-size:.95rem}
.g-item p{font-size:.82rem;color:var(--mut)}

/* CTA */
.cta{position:relative;color:#fff;text-align:center;overflow:hidden}
.cta img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cta .veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,54,46,.93),rgba(10,95,83,.82))}
.cta .wrap{position:relative;padding:80px 20px}
.cta h2{font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:12px}
.cta p{color:#d9efe8;margin-bottom:26px}

/* page hero (inner pages) */
.page-hero{background:linear-gradient(115deg,var(--teal-d),var(--teal));color:#fff;padding:64px 0;text-align:center}
.page-hero h1{font-size:clamp(1.6rem,3vw,2.3rem)}
.page-hero p{color:#cdeee3;margin-top:10px}

/* product detail */
.crumbs{font-size:.85rem;color:var(--mut);padding:20px 0 0}
.pd{display:grid;grid-template-columns:420px 1fr;gap:48px;padding:34px 0 10px;align-items:start}
.pd .imgbox{background:linear-gradient(160deg,#f2faf7,#e3f4ef);border:1px solid var(--line);border-radius:18px;padding:34px;display:flex;justify-content:center}
.pd .imgbox img{max-height:340px;object-fit:contain}
.pd h1{font-size:clamp(1.4rem,2.6vw,2rem);margin:6px 0 10px}
.pd .cat-tag{font-size:.78rem;font-weight:800;letter-spacing:.08em;color:var(--teal);text-transform:uppercase}
.pd .guar{background:var(--teal-l);border:1px solid var(--line);border-radius:var(--rad);padding:18px 20px;margin:18px 0}
.pd .guar h4{display:flex;gap:8px;align-items:center;color:var(--teal-d);margin-bottom:8px}
.pd .guar li{list-style:none;font-size:.88rem;color:var(--ink);display:flex;gap:8px;margin:4px 0}
.pd .guar li svg{flex:none;width:16px;height:16px;stroke:var(--teal);margin-top:4px}
.pd .btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.pd-sections{max-width:860px;padding:10px 0 30px}
.pd-sections .sec{background:var(--card);border:1px solid var(--line);border-radius:var(--rad);padding:24px 28px;margin-bottom:18px;box-shadow:var(--sh)}
.pd-sections h3{color:var(--teal-d);font-size:1.12rem;margin-bottom:10px;padding-bottom:8px;border-bottom:2px solid var(--teal-l)}
.pd-sections p{font-size:.93rem;color:#314b44;margin:8px 0}

/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:960px;margin:0 auto}
.chat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--rad);padding:34px 26px;text-align:center;box-shadow:var(--sh);transition:.25s;color:var(--ink)}
.chat-card:hover{transform:translateY(-6px)}
.chat-card .ci{width:66px;height:66px;border-radius:50%;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;color:#fff}
.chat-card .ci .ico{width:30px;height:30px}
.chat-card.wa .ci{background:linear-gradient(135deg,#25d366,#128c7e)}
.chat-card.mail .ci{background:linear-gradient(135deg,#e8a13d,#d97706)}
.chat-card h3{font-size:1.05rem}
.chat-card .num{display:block;margin:10px 0 4px;font-weight:700;color:var(--ink);font-size:.95rem}
.chat-card .hint{font-size:.82rem;color:var(--mut)}
.contact-note{max-width:680px;margin:36px auto 0;text-align:center;background:var(--teal-l);border:1px solid var(--line);border-radius:var(--rad);padding:20px 26px;font-size:.92rem;color:var(--ink)}

/* about */
.about-body{max-width:860px;margin:0 auto}
.about-body p{margin:14px 0;font-size:.98rem;color:#314b44}
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:10px}
.about-split img{border-radius:18px;box-shadow:var(--sh)}

/* footer */
footer{background:#0b352d;color:#bcd9d0;margin-top:20px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:40px;padding:56px 0 40px}
footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
footer a{color:#bcd9d0;font-size:.9rem}
footer a:hover{color:#8fe6cf}
footer .fbrand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;margin-bottom:12px}
footer .fbrand svg{width:30px;height:30px}
footer p{font-size:.88rem}
footer ul{list-style:none;display:grid;gap:8px}
footer .fc{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;margin:8px 0}
footer .fc .ico{width:18px;height:18px;flex:none;margin-top:3px;color:#8fe6cf}
.copy{border-top:1px solid rgba(255,255,255,.12);text-align:center;padding:18px 0;font-size:.82rem;color:#8fb5ab}

/* responsive */
@media(max-width:1020px){
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .split,.about-split{grid-template-columns:1fr;gap:30px}
  .pd{grid-template-columns:1fr}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
  .site-head nav{position:fixed;inset:68px 0 auto 0;background:#fff;flex-direction:column;gap:0;padding:10px 20px 18px;border-bottom:1px solid var(--line);display:none;box-shadow:0 12px 24px rgba(0,0,0,.08)}
  .site-head nav.open{display:flex}
  .site-head nav a{padding:12px 4px;border-bottom:1px solid var(--line)}
  .burger{display:block}
  .band .stats{grid-template-columns:repeat(2,1fr)}
  .g-strip{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .hero .wrap{padding:80px 20px}
  section{padding:56px 0}
  footer .cols{grid-template-columns:1fr}
  .lang-switch button{padding:4px 8px}
}
@media(max-width:400px){.prod-grid{grid-template-columns:1fr}}