:root{
  --ink:#10243A;            /* deep navy-black */
  --ink-2:#16314E;          /* navy */
  --paper:#FFFFFF;
  --soft:#F3F7FB;           /* cool off-white */
  --tint:#E8F0F7;           /* cool tint */
  --blue:#0068B8;           /* logo azure accent */
  --blue-2:#3E97DE;         /* bright blue */
  --muted:#5E7488;          /* cool grey */
  --line:#DCE6EF;           /* cool hairline */
  --radius:2px;
  --shadow:0 1px 2px rgba(16,36,58,.06);
  --maxw:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Helvetica Neue","Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC","WenQuanYi Micro Hei",sans-serif;
  color:var(--ink);background:var(--paper);line-height:1.85;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
a{color:inherit;text-decoration:none}
img{max-width:100%}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center}
.logo-img{height:34px;width:auto;object-fit:contain}
.brand-name{font-size:18px;letter-spacing:.4px;font-weight:500}
.brand-name em{font-style:normal;color:var(--muted);font-weight:400;font-size:12px;margin-left:4px}
.main-nav>ul{display:flex;gap:2px;list-style:none}
.main-nav>ul>li{position:relative}
.main-nav>ul>li>a{display:block;padding:11px 17px;font-size:14px;color:var(--ink);border-radius:var(--radius);font-weight:500;white-space:nowrap;letter-spacing:.02em}
.main-nav>ul>li>a:hover{color:var(--blue)}
.has-dropdown>.dropdown{position:absolute;top:100%;left:0;min-width:248px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:6px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s}
.has-dropdown:hover>.dropdown{opacity:1;visibility:visible;transform:none}
.dropdown li{list-style:none}
.dropdown a{display:block;padding:10px 14px;border-radius:var(--radius);font-size:13.5px;color:var(--muted)}
.dropdown a:hover{background:var(--soft);color:var(--ink)}
.dropdown a .dd-tag{display:inline-block;min-width:4.2em;text-align:right;color:var(--ink);font-weight:600;margin-right:.1em}
.dropdown .dd-group{padding:2px 0}
.dropdown .dd-group + .dd-group{border-top:1px solid var(--line);margin-top:4px;padding-top:6px}
.dropdown .dd-group-title{display:block;padding:6px 14px 4px;font-size:11px;font-weight:700;letter-spacing:.06em;color:var(--blue)}
.nav-cta{margin-left:14px;padding:10px 24px;border-radius:999px;background:var(--ink);color:#fff;font-size:13.5px;font-weight:500;letter-spacing:.06em}
.nav-cta:hover{background:var(--blue)}
.col-subtag{background:linear-gradient(90deg,var(--ink),#16223f);color:#fff;padding:15px 0;text-align:center}
.col-subtag .txt{font-size:16px;font-weight:500;letter-spacing:.06em}
.col-subtag .txt::before{content:"\201C";margin-right:4px;opacity:.55}
.col-subtag .txt::after{content:"\201D";margin-left:4px;opacity:.55}

/* ---------- hero (legacy) ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:90px 0 96px}
.hero .eyebrow{display:inline-block;font-size:12px;letter-spacing:.28em;color:var(--blue-2);margin-bottom:18px;text-transform:uppercase}
.hero h1{font-size:46px;line-height:1.18;font-weight:500;margin-bottom:18px;letter-spacing:.01em}
.hero p.lead{font-size:18px;color:rgba(255,255,255,.78);max-width:620px;margin-bottom:30px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 28px;border-radius:999px;font-size:15px;font-weight:500;letter-spacing:.02em}
.btn-primary{background:#fff;color:var(--ink)}
.btn-ghost{border:1px solid rgba(255,255,255,.5);color:#fff}
.hero-stats{display:flex;gap:40px;margin-top:48px;flex-wrap:wrap}
.hero-stats .num{font-size:30px;font-weight:500;color:#fff}
.hero-stats .lbl{font-size:12.5px;color:rgba(255,255,255,.6)}

/* ---------- sections ---------- */
section{padding:100px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 58px}
.section-head .tag{color:var(--blue);font-weight:600;font-size:12px;letter-spacing:.22em;text-transform:uppercase}
.section-head h2{font-size:34px;margin:14px 0 14px;font-weight:500;color:var(--ink);letter-spacing:.01em}
.section-head p{color:var(--muted);font-size:16px}
.bg-soft{background:var(--soft)}

/* ---------- cards ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.25s}
.card:hover{border-color:var(--blue);transform:translateY(-3px)}
.card .ic{width:48px;height:48px;border-radius:var(--radius);background:var(--soft);color:var(--blue);display:grid;place-items:center;font-size:20px;margin-bottom:16px}
.card h3{font-size:19px;margin-bottom:8px;color:var(--ink);font-weight:500}
.card p{color:var(--muted);font-size:15px}
.card .more{display:inline-block;margin-top:14px;color:var(--blue);font-weight:600;font-size:14px}

/* product card */
.prod{border-top:3px solid var(--blue)}
.prod .pill{display:inline-block;font-size:12px;color:var(--blue);background:var(--soft);padding:3px 10px;border-radius:999px;margin-bottom:12px}
.anchor{padding-top:90px;margin-top:-66px}

/* ---------- feature split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split .visual{background:var(--soft);border-radius:var(--radius);min-height:300px;display:grid;place-items:center;color:var(--blue)}
.split h2{font-size:30px;color:var(--ink);margin-bottom:14px;font-weight:500;letter-spacing:.01em}
.split ul{list-style:none;margin-top:18px}
.split li{padding:11px 0;border-bottom:1px solid var(--line);display:flex;gap:10px;color:var(--ink)}
.split li:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--blue);margin-top:10px;flex:0 0 auto}

/* ---------- page hero (inner) ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:74px 0 60px}
.page-hero .container{position:relative;z-index:2}
.page-hero .tag{color:var(--blue-2);letter-spacing:.24em;font-size:12px;text-transform:uppercase}
.page-hero h1{font-size:40px;font-weight:500;margin:12px 0 10px;letter-spacing:.01em}
.page-hero p{color:rgba(255,255,255,.76);font-size:17px;max-width:640px}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.55);margin-bottom:14px;letter-spacing:.02em}
.breadcrumb a{color:rgba(255,255,255,.55)}
.breadcrumb a:hover{color:var(--blue-2)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.62);padding:66px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr 1fr;gap:22px}
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:880px;margin:0 auto}
.faq-list .card h3{margin-bottom:8px;color:var(--ink)}
.site-footer h4{color:#fff;font-size:12.5px;margin-bottom:18px;font-weight:600;letter-spacing:.12em;text-transform:uppercase}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:11px;font-size:13.5px}
.site-footer a:hover{color:var(--blue-2)}
.footer-brand p{font-size:13.5px;color:rgba(255,255,255,.5);max-width:280px;margin-top:12px;line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;font-size:12.5px;color:rgba(255,255,255,.45);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-bottom .producer{color:rgba(255,255,255,.7)}

/* notice */
.notice{background:#EAF3FB;border:1px solid #CFE2F2;color:#1F5C95;border-radius:var(--radius);padding:14px 18px;font-size:14px;margin-top:24px;line-height:1.7}

/* responsive */
@media(max-width:980px){
  .main-nav{display:none}
  .grid-3,.grid-4,.grid-2,.split,.footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:34px}
}

/* ---------- product image ---------- */
.prod-showcase{background:var(--soft);padding:48px 0;text-align:center}
.prod-showcase img{max-width:900px;width:100%;height:auto;border-radius:var(--radius);box-shadow:var(--shadow)}
.prod-img-wrap{overflow:hidden;border-radius:var(--radius)}
.prod-img-wrap img{width:100%;height:auto;display:block;transition:.4s transform}
.prod-img-wrap img:hover{transform:scale(1.03)}

/* product detail visual */
.prod-hero-img{text-align:center;background:var(--soft);border-radius:var(--radius);padding:24px;min-height:300px;display:flex;align-items:center;justify-content:center}
.prod-hero-img img{max-height:280px;max-width:100%;object-fit:contain;border-radius:var(--radius)}

/* spec table */
.spec-table{width:100%;border-collapse:collapse;margin-top:14px;font-size:14px}
.spec-table th{text-align:left;background:var(--ink);color:#fff;padding:10px 14px;font-weight:500;letter-spacing:.04em}
.spec-table td{padding:10px 14px;border-bottom:1px solid var(--line);color:var(--ink)}
.spec-table tr:nth-child(even) td{background:var(--soft)}

/* ============ HOMEPAGE ============ */

/* Hero with full-bleed image + gradient overlay */
.hero-v2{position:relative;min-height:640px;display:flex;align-items:center;color:#fff;overflow:hidden;background:var(--ink)}
.hero-v2 .bg{position:absolute;inset:0;background-size:cover;background-position:center right;background-repeat:no-repeat}
.hero-v2 .overlay{position:absolute;inset:0;background:linear-gradient(105deg,rgba(16,36,58,.93) 0%,rgba(16,36,58,.74) 45%,rgba(16,36,58,.32) 76%,rgba(16,36,58,.06) 100%)}
.hero-v2 .container{position:relative;z-index:2}
.hero-v2 .eyebrow{display:inline-block;font-size:12px;letter-spacing:.3em;color:var(--blue-2);margin-bottom:18px;text-transform:uppercase;font-weight:600}
.hero-v2 h1{font-size:60px;line-height:1.1;font-weight:500;margin-bottom:22px;letter-spacing:.01em}
.hero-v2 h1 .accent{color:var(--blue-2)}
.hero-v2 p.lead{font-size:18px;color:rgba(255,255,255,.8);max-width:560px;margin-bottom:34px;line-height:1.8}
.hero-v2 .btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-v2 .btn-light{background:#fff;color:var(--ink)}
.hero-v2 .btn-outline{border:1.5px solid rgba(255,255,255,.5);color:#fff}
.hero-v2 .hero-stats{display:flex;gap:42px;margin-top:50px;flex-wrap:wrap}
.hero-v2 .hero-stats .num{font-size:30px;font-weight:500;color:#fff}
.hero-v2 .hero-stats .lbl{font-size:12.5px;color:rgba(255,255,255,.6);margin-top:2px;letter-spacing:.02em}

/* Brand value cards */
.value-card{text-align:center;padding:42px 28px;border-top:3px solid var(--blue)}
.value-card .vc-ic{width:64px;height:64px;border-radius:var(--radius);background:var(--ink);color:var(--blue-2);display:grid;place-items:center;font-size:28px;margin:0 auto 18px}
.value-card h3{font-size:21px;margin-bottom:10px;color:var(--ink);font-weight:500}
.value-card p{color:var(--muted);font-size:15px;line-height:1.8}

/* Ingredient mechanism diagram */
.mech-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.mech-diagram{background:var(--soft);border-radius:var(--radius);padding:30px;position:relative}
.mech-step{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;margin-bottom:12px;position:relative}
.mech-step:not(:last-child):after{content:"";position:absolute;left:31px;bottom:-12px;width:2px;height:12px;background:var(--blue)}
.mech-step .dot{width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:500;flex:0 0 auto}
.mech-step .txt b{display:block;color:var(--ink);font-size:15px;font-weight:500}
.mech-step .txt span{font-size:13px;color:var(--muted)}
.mech-flow-note{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.efficacy-list{list-style:none}
.efficacy-list li{padding:14px 0;border-bottom:1px solid var(--line);display:flex;gap:14px;align-items:flex-start}
.efficacy-list .e-ic{width:40px;height:40px;border-radius:var(--radius);background:var(--soft);color:var(--blue);display:grid;place-items:center;font-size:18px;flex:0 0 auto}
.efficacy-list b{color:var(--ink);font-size:15px;font-weight:500}
.efficacy-list p{font-size:13px;color:var(--muted);margin-top:2px}

/* Product grid (homepage showcase) */
.prod-grid{display:grid;gap:24px;grid-template-columns:repeat(4,1fr)}
.prod-tile{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.22s;display:flex;flex-direction:column}
.prod-tile:hover{border-color:var(--blue);transform:translateY(-4px)}
.prod-tile .ph{height:200px;display:grid;place-items:center;padding:18px;background:var(--soft)}
.prod-tile .ph img{max-height:170px;width:auto;object-fit:contain}
.prod-tile .body{padding:20px;display:flex;flex-direction:column;flex:1;border-top:3px solid var(--blue)}
.prod-tile .tag-mini{font-size:12px;color:var(--blue);font-weight:600;margin-bottom:6px;letter-spacing:.04em}
.prod-tile h3{font-size:20px;color:var(--ink);margin-bottom:8px;font-weight:500}
.prod-tile p{font-size:14px;color:var(--muted);flex:1}
.prod-tile .more{margin-top:14px;color:var(--blue);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:4px}

/* Trust / endorsement wall */
.trust-logos{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;margin-top:10px}
.trust-logo{width:150px;height:64px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;display:grid;place-items:center;padding:10px;text-align:center;font-size:13px;color:var(--muted);font-weight:600;line-height:1.3}
.trust-logo .tl-sub{font-size:11px;color:#7E8FA0;font-weight:400}
.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:10px}
.testi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;position:relative}
.testi:before{content:"\201C";position:absolute;top:6px;left:16px;font-size:48px;color:var(--tint);font-family:Georgia,serif}
.testi p{font-size:15px;color:var(--ink);line-height:1.8;margin-bottom:16px;position:relative;z-index:1}
.testi .who{display:flex;align-items:center;gap:10px}
.testi .avatar{width:38px;height:38px;border-radius:50%;background:var(--ink);color:var(--blue-2);display:grid;place-items:center;font-weight:600;font-size:14px}
.testi .who b{font-size:14px;color:var(--ink);font-weight:500}
.testi .who span{font-size:12px;color:var(--muted);display:block}
.badges{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:10px}
.badge{display:flex;align-items:center;gap:10px;background:var(--soft);border:1px solid var(--line);border-radius:var(--radius);padding:12px 18px}
.badge .b-ic{width:34px;height:34px;border-radius:var(--radius);background:var(--ink);color:var(--blue-2);display:grid;place-items:center;font-size:16px;flex:0 0 auto}
.badge b{font-size:14px;color:var(--ink);font-weight:500}
.badge span{font-size:12px;color:var(--muted);display:block}

/* Product detail page */
.prod-detail-hero{position:relative;overflow:hidden;background:linear-gradient(160deg,var(--ink),var(--ink-2));color:#fff;padding:60px 0}
.prod-detail-hero .container{position:relative;z-index:2}
.prod-detail-hero .split{gap:40px}
.prod-detail-hero .ph-box{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:30px;display:grid;place-items:center;min-height:300px}
.prod-detail-hero .ph-box img{max-height:270px;width:auto;object-fit:contain}
.prod-detail-hero h1{font-size:42px;font-weight:500;margin:6px 0 8px;letter-spacing:.01em}
.prod-detail-hero .prod-sub{font-size:18px;color:var(--blue-2);margin-bottom:18px;letter-spacing:.02em}
.prod-detail-hero p.intro{color:rgba(255,255,255,.78);font-size:16px;max-width:520px;line-height:1.8}
.prod-pills{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.prod-pills .pp{padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.1);font-size:13px}
.awards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.award-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;border-left:3px solid var(--blue)}
.award-card .a-ic{font-size:26px;margin-bottom:10px}
.award-card h4{font-size:16px;color:var(--ink);margin-bottom:6px;font-weight:500}
.award-card p{font-size:13px;color:var(--muted);line-height:1.6}

/* responsive additions */
@media(max-width:980px){
  .hero-v2 h1{font-size:38px}
  .mech-wrap,.testimonials,.awards-grid{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .prod-grid{grid-template-columns:1fr}
}

/* ============ ROTATING HERO CAROUSEL (all pages) ============ */
.hero-carousel{position:absolute;inset:0;z-index:0}
.hero-carousel .slide{
  position:absolute;inset:0;
  background-size:cover;background-position:center;background-repeat:no-repeat;
  opacity:0;
  animation:heroSlide 18s infinite, heroZoom 18s infinite ease-out;
}
.hero-carousel .slide:nth-child(1){animation-delay:0s,0s}
.hero-carousel .slide:nth-child(2){animation-delay:6s,6s}
.hero-carousel .slide:nth-child(3){animation-delay:12s,12s}
@keyframes heroSlide{0%{opacity:0}3%{opacity:1}33%{opacity:1}36%{opacity:0}100%{opacity:0}}
@keyframes heroZoom{0%{transform:scale(1.14)}100%{transform:scale(1.0)}}

/* gradient overlay so header text stays readable; art shows through on the right */
.hero-overlay{position:absolute;inset:0;z-index:1;
  background:linear-gradient(105deg,rgba(16,36,58,.93) 0%,rgba(16,36,58,.76) 46%,rgba(16,36,58,.42) 74%,rgba(16,36,58,.12) 100%)}
.hero-v2 .hero-carousel{z-index:0}
.hero-v2 .overlay{z-index:1}

/* homepage progress dots, synced to the same 18s timeline */
.hero-dots{position:absolute;left:24px;bottom:26px;z-index:3;display:flex;gap:10px}
.hero-dots span{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.4);
  animation:dotPulse 18s infinite}
.hero-dots span:nth-child(2){animation-delay:6s}
.hero-dots span:nth-child(3){animation-delay:12s}
@keyframes dotPulse{0%{background:var(--blue-2);transform:scale(1.35)}
  3%{background:var(--blue-2);transform:scale(1.35)}
  33%{background:var(--blue-2);transform:scale(1.35)}
  36%,100%{background:rgba(255,255,255,.4);transform:scale(1)}}

/* ============ HOMEPAGE LAYOUT POLISH ============ */
#ingredient-intro .grid-4 .card{text-align:center;border-top:3px solid var(--blue);padding-top:30px}
#ingredient-intro .grid-4 .card h3{margin-top:4px}
#ingredient-intro .grid-4 .card p{margin-top:6px}

/* closing CTA band before footer */
.cta-band{background:var(--ink);color:#fff;padding:60px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:28px;font-weight:500;letter-spacing:.01em}
.cta-band p{color:rgba(255,255,255,.7);margin-top:8px;font-size:16px}
.cta-band .btn-light{background:var(--blue);color:#fff}

@media(max-width:560px){
  .hero-dots{left:50%;transform:translateX(-50%)}
}

/* ============ 产品中心荣誉墙 ============ */
.honor-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:10px}
.honor-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.22s}
.honor-card:hover{border-color:var(--blue);transform:translateY(-3px)}
.honor-card img{width:100%;height:180px;object-fit:cover;display:block;border-bottom:1px solid var(--line)}
.honor-card .hc-body{padding:14px 16px}
.honor-card .hc-body b{font-size:14px;color:var(--ink);display:block;margin-bottom:6px;font-weight:500}
.honor-card .hc-body span{font-size:12px;color:var(--muted);line-height:1.6;display:block}

.cert-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cert-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.22s;text-decoration:none;color:inherit}
.cert-card:hover{border-color:var(--blue);transform:translateY(-3px)}
.cert-card img{width:100%;height:200px;object-fit:cover;display:block;border-bottom:1px solid var(--line)}
.cert-card div{padding:12px 14px;font-size:13px}
.cert-card b{color:var(--ink);display:block;font-size:14px;font-weight:500}
.cert-card span{color:var(--muted);margin-top:2px;display:block;line-height:1.5}
.cert-card em{color:var(--blue)}
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feat-card{display:flex;gap:20px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.22s}
.feat-card:hover{border-color:var(--blue);transform:translateY(-3px)}
.feat-card .fc-thumb{flex:0 0 122px;width:122px;height:122px;border-radius:var(--radius);overflow:hidden;background:var(--soft);display:grid;place-items:center}
.feat-card .fc-thumb img{width:100%;height:100%;object-fit:cover}
.feat-card h3{font-size:18px;color:var(--ink);margin-bottom:8px;font-weight:500}
.feat-card p{font-size:14px;color:var(--muted);line-height:1.7}
.feat-card .more{display:inline-block;margin-top:10px;color:var(--blue);font-weight:600;font-size:14px}

@media(max-width:980px){
  .honor-gallery{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(3,1fr)}
  .feat-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .honor-gallery,.cert-grid{grid-template-columns:1fr}
  .honor-card img,.cert-card img{height:160px}
}

/* ============ 文章库 ============ */
.article-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:14px 18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--soft);margin-bottom:26px}
.article-toolbar .at-count{font-weight:600;color:var(--ink);font-size:15px}
.article-toolbar .at-note{font-size:13px;color:var(--muted)}

.article-list{display:grid;gap:24px;grid-template-columns:repeat(3,1fr)}
.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:.22s;display:flex;flex-direction:column}
.article-card:hover{border-color:var(--blue);transform:translateY(-4px)}
.article-card .ac-thumb{height:150px;display:grid;place-items:center;color:#fff;font-size:30px;font-weight:600;letter-spacing:1px;background:var(--ink)}
.article-card .ac-body{padding:20px;display:flex;flex-direction:column;flex:1;border-top:3px solid var(--blue)}
.article-card .ac-cat{font-size:12px;color:var(--blue);font-weight:600;margin-bottom:8px;letter-spacing:.04em}
.article-card h3{font-size:18px;color:var(--ink);margin-bottom:8px;line-height:1.4;font-weight:500}
.article-card p{font-size:14px;color:var(--muted);flex:1}
.article-card .ac-meta{margin-top:14px;display:flex;align-items:center;justify-content:space-between}
.article-card .more{color:var(--blue);font-weight:600;font-size:14px}

/* ============ 文章落地页 ============ */
.article-detail{max-width:820px;margin:0 auto}
.article-meta{display:flex;gap:14px;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--muted);
  padding-bottom:16px;margin-bottom:8px;border-bottom:1px solid var(--line)}
.article-meta .am-tag{background:var(--ink);color:#fff;padding:3px 12px;border-radius:999px;font-weight:500}
.article-body{font-size:17px;line-height:2;color:var(--ink);word-break:break-word}
.article-body .lead-p{font-size:18px;line-height:1.85;color:var(--ink);font-weight:500;margin-bottom:26px}
.article-body h2{font-size:24px;color:var(--ink);margin:34px 0 14px;font-weight:500;
  padding-left:14px;border-left:3px solid var(--blue)}
.article-body p{margin-bottom:16px;color:var(--ink)}
.article-body b{color:var(--ink);font-weight:600}
/* 文章页阅读容器：窄栏排版，保证标题/正文/行间距/字号一致且易读 */
.article-wrap{max-width:820px;margin:0 auto}
.article-summary{font-size:17px;line-height:1.9;color:#44566b;background:var(--soft);
  border-left:3px solid var(--blue);border-radius:0 var(--radius) var(--radius) 0;
  padding:16px 20px;margin-bottom:28px}
.article-body img{max-width:100%;height:auto;border-radius:12px;margin:18px 0;
  box-shadow:0 6px 20px rgba(16,36,58,.10)}
.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:2px}
.article-body blockquote{margin:20px 0;padding:12px 18px;border-left:4px solid var(--blue);
  background:var(--soft);color:#44566b;border-radius:0 var(--radius) var(--radius) 0}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 16px}
.article-body li{margin:6px 0;line-height:1.9}
.article-body h3{font-size:20px;color:var(--ink);margin:28px 0 12px;font-weight:500}
.article-ul{list-style:none;margin:6px 0 18px}
.article-ul li{position:relative;padding:7px 0 7px 22px;color:var(--ink);border-bottom:1px solid var(--line)}
.article-ul li:before{content:"";position:absolute;left:2px;top:15px;width:8px;height:8px;border-radius:50%;background:var(--blue)}
.callout{background:var(--soft);border-left:3px solid var(--blue);border-radius:var(--radius);
  padding:16px 18px;margin:22px 0;font-size:15px;color:var(--ink);line-height:1.8}
.callout b{color:var(--ink)}
.callout.warn{background:#FBF6EC;border-left-color:var(--blue);color:#7A5B2A}
.article-back{text-align:center;margin:36px 0 8px}
.related{margin-top:48px;padding-top:30px;border-top:1px solid var(--line)}
.related h3{font-size:20px;color:var(--ink);margin-bottom:20px;font-weight:500}
.related-grid{grid-template-columns:repeat(3,1fr)}

@media(max-width:980px){
  .article-list,.related-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .article-list,.related-grid{grid-template-columns:1fr}
  .article-body .lead-p{font-size:16px}
}

/* ============ REDESIGN 2026-09: HERO / PRODUCTS / INGREDIENT / STATS / TESTIMONIALS ============ */

/* --- Hero v3: full-bleed product showcase (Ketone-IQ style) --- */
.hero-v3{
  position:relative;
  min-height:680px;
  display:flex;
  align-items:center;
  overflow:hidden;
  background:linear-gradient(100deg,#f4f6f9 0%,#eef2f7 55%,#e4ebf3 100%);
}
.hero-v3 .hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
}
.hero-v3 .hero-gradient{
  position:absolute;
  inset:0;
  background:linear-gradient(95deg,rgba(244,246,249,.96) 0%,rgba(244,246,249,.82) 42%,rgba(244,246,249,.28) 72%,rgba(244,246,249,0) 100%);
}
.hero-v3 .container{position:relative;z-index:2}
.hero-v3 .hero-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.hero-v3 .rating{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-size:14px;font-weight:600;color:var(--ink)}
.hero-v3 .stars{color:#e6a700;letter-spacing:2px}
.hero-v3 h1{font-size:64px;line-height:1.05;font-weight:600;color:var(--ink);margin-bottom:20px;letter-spacing:-.02em}
.hero-v3 h1 span{color:var(--blue)}
.hero-v3 .lead{font-size:18px;color:var(--muted);max-width:520px;line-height:1.8;margin-bottom:30px}
.hero-v3 .hero-cta{display:inline-flex;align-items:center;gap:10px;background:var(--blue);color:#fff;padding:15px 32px;border-radius:999px;font-size:16px;font-weight:600;transition:.2s}
.hero-v3 .hero-cta:hover{background:var(--ink);transform:translateY(-2px)}
.hero-v3 .hero-product{position:relative;display:flex;justify-content:center;align-items:center}
.hero-v3 .hero-product img{max-height:420px;width:auto;filter:drop-shadow(0 28px 60px rgba(16,36,58,.22));animation:floatBottle 5s ease-in-out infinite}
@keyframes floatBottle{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.hero-v3 .hero-pills{position:absolute;right:0;top:20%;display:flex;flex-direction:column;gap:12px}
.hero-v3 .hpill{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-size:12px;font-weight:600;color:var(--ink);box-shadow:0 4px 14px rgba(16,36,58,.08);backdrop-filter:blur(6px)}
@media(max-width:980px){
  .hero-v3 h1{font-size:42px}
  .hero-v3 .hero-inner{grid-template-columns:1fr}
  .hero-v3 .hero-product img{max-height:300px}
  .hero-v3 .hero-pills{position:static;flex-direction:row;flex-wrap:wrap;margin-top:20px;justify-content:center}
}

/* --- Product quad cards (Vitafoods-style diamond tops) --- */
.product-quad{padding:90px 0;background:#fff}
.product-quad .section-head{max-width:720px}
.quad-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.quad-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;transition:.25s
}
.quad-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(16,36,58,.1)}
.quad-diamond{
  height:170px;display:grid;place-items:center;position:relative;overflow:hidden
}
.quad-diamond .diamond-shape{
  width:110px;height:110px;border-radius:22px;transform:rotate(45deg);
  display:grid;place-items:center;box-shadow:0 12px 28px rgba(0,0,0,.12)
}
.quad-diamond .diamond-shape img{transform:rotate(-45deg);max-height:72px;max-width:72px;object-fit:contain}
.quad-diamond .quad-num{
  position:absolute;top:14px;left:18px;font-size:13px;font-weight:700;
  width:30px;height:30px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--blue)
}
.quad-body{padding:22px 20px 24px;flex:1;display:flex;flex-direction:column}
.quad-body .en{font-size:13px;color:var(--blue);font-weight:700;letter-spacing:.04em;margin-bottom:4px}
.quad-body h3{font-size:20px;color:var(--ink);margin-bottom:10px;font-weight:600}
.quad-body p{font-size:14px;color:var(--muted);line-height:1.7;flex:1;margin-bottom:16px}
.quad-body .more{color:var(--blue);font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:4px}
.quad-card.yunzhi .quad-diamond{background:linear-gradient(135deg,#e8f4fc,#d6ebf9)}
.quad-card.yunzhi .diamond-shape{background:linear-gradient(135deg,#3E97DE,#0068B8)}
.quad-card.xinggui .quad-diamond{background:linear-gradient(135deg,#f3e8ff,#e8d6ff)}
.quad-card.xinggui .diamond-shape{background:linear-gradient(135deg,#8b5cf6,#6d28d9)}
.quad-card.hanmian .quad-diamond{background:linear-gradient(135deg,#fff0f5,#ffe0ec)}
.quad-card.hanmian .diamond-shape{background:linear-gradient(135deg,#f472b6,#db2777)}
.quad-card.shunao .quad-diamond{background:linear-gradient(135deg,#eefcf5,#d6f5e5)}
.quad-card.shunao .diamond-shape{background:linear-gradient(135deg,#34d399,#059669)}
@media(max-width:980px){.quad-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.quad-grid{grid-template-columns:1fr}}

/* --- Ingredient luxury section: full-bleed glass/brain texture --- */
.ingredient-lux{
  position:relative;min-height:560px;display:flex;align-items:center;
  overflow:hidden;background:var(--ink);color:#fff
}
.ingredient-lux .lux-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 20% 30%,rgba(62,151,222,.22) 0%,transparent 35%),
    radial-gradient(circle at 80% 70%,rgba(0,104,184,.18) 0%,transparent 40%),
    linear-gradient(135deg,#0a1929 0%,#10243A 50%,#16314E 100%);
}
.ingredient-lux .lux-bubbles{
  position:absolute;inset:0;overflow:hidden;
  background-image:
    radial-gradient(circle at 70% 20%,rgba(255,255,255,.08) 0%,transparent 25%),
    radial-gradient(circle at 30% 80%,rgba(255,255,255,.06) 0%,transparent 30%);
  animation:bubbleDrift 14s ease-in-out infinite alternate
}
@keyframes bubbleDrift{0%{transform:translate(0,0)}100%{transform:translate(-20px,-14px)}}
.ingredient-lux .container{position:relative;z-index:2}
.ingredient-lux .lux-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.ingredient-lux h2{font-size:42px;line-height:1.15;font-weight:500;margin-bottom:18px}
.ingredient-lux h2 span{color:var(--blue-2)}
.ingredient-lux p{font-size:17px;color:rgba(255,255,255,.78);line-height:1.9;margin-bottom:28px;max-width:540px}
.ingredient-lux .lux-cta{display:inline-flex;align-items:center;gap:10px;background:#fff;color:var(--ink);padding:14px 28px;border-radius:999px;font-weight:600}
.ingredient-lux .lux-visual{position:relative;height:320px;display:flex;align-items:center;justify-content:center}
.ingredient-lux .glass-orb{
  width:260px;height:260px;border-radius:50%;
  background:linear-gradient(135deg,rgba(255,255,255,.18),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(10px);
  box-shadow:0 0 80px rgba(62,151,222,.25),inset 0 0 40px rgba(255,255,255,.1);
  animation:pulseOrb 6s ease-in-out infinite
}
.ingredient-lux .glass-orb::before{
  content:"D3HB";position:absolute;inset:0;display:grid;place-items:center;
  font-size:36px;font-weight:600;letter-spacing:.1em;color:rgba(255,255,255,.9)
}
@keyframes pulseOrb{0%,100%{transform:scale(1)}50%{transform:scale(1.06)}}
@media(max-width:980px){
  .ingredient-lux .lux-inner{grid-template-columns:1fr}
  .ingredient-lux h2{font-size:32px}
  .ingredient-lux .glass-orb{width:200px;height:200px}
  .ingredient-lux .glass-orb::before{font-size:26px}
}

/* --- Dark big-numbers stats section --- */
.stats-dark{
  background:#0a0a0a;color:#fff;padding:100px 0
}
.stats-dark .section-head h2,.stats-dark .section-head p{color:#fff}
.stats-dark .section-head p{color:rgba(255,255,255,.6)}
.stats-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:36px;align-items:start}
.stats-left{grid-column:1;grid-row:1/3;display:flex;flex-direction:column;justify-content:center;padding-right:20px}
.stats-left h3{font-size:24px;line-height:1.4;font-weight:500;margin-bottom:14px}
.stats-left p{color:rgba(255,255,255,.55);line-height:1.8}
.stat-big{text-align:left;padding:24px 0;border-top:1px solid rgba(255,255,255,.18)}
.stat-big .num{font-size:52px;font-weight:600;line-height:1;color:#fff;letter-spacing:-.02em}
.stat-big .num span{font-size:28px}
.stat-big .label{font-size:14px;color:rgba(255,255,255,.55);margin-top:10px;line-height:1.6}
@media(max-width:980px){.stats-grid{grid-template-columns:1fr}.stats-left{grid-column:auto;grid-row:auto}.stat-big .num{font-size:42px}}

/* --- Testimonials v2: photo cards with colored quote band --- */
.testimonials-v2{padding:90px 0;background:#fff}
.testi-v2-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testi-v2{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  overflow:hidden;transition:.22s;display:flex;flex-direction:column
}
.testi-v2:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(16,36,58,.1)}
.testi-v2 .tv-photo{height:240px;overflow:hidden;background:var(--soft)}
.testi-v2 .tv-photo img{width:100%;height:100%;object-fit:cover}
.testi-v2 .tv-quote{
  padding:22px 22px 24px;flex:1;display:flex;flex-direction:column;
  background:linear-gradient(180deg,#fff5f5 0%,#fff 100%);border-top:4px solid #e11d48
}
.testi-v2:nth-child(2) .tv-quote{background:linear-gradient(180deg,#f0f9ff 0%,#fff 100%);border-top-color:#0068B8}
.testi-v2:nth-child(3) .tv-quote{background:linear-gradient(180deg,#f5fff8 0%,#fff 100%);border-top-color:#059669}
.testi-v2 .tv-quote p{font-size:15px;color:var(--ink);line-height:1.8;margin-bottom:18px;flex:1}
.testi-v2 .tv-person b{display:block;font-size:15px;color:var(--ink);font-weight:600}
.testi-v2 .tv-person span{font-size:13px;color:var(--muted)}
@media(max-width:980px){.testi-v2-grid{grid-template-columns:1fr}}