/* Sinoflex — shared landing styles (self-contained, namespaced .sinoflex).
   Warming joint-&-muscle care theme: clinical teal-green + warm capsaicin
   accent. The --color-* bridge lives inside .sinoflex so the stylesheet is
   portable across every hub without touching the host Tailwind config. */

.sinoflex {
  --sx-primary: #0d6e6e;      /* clinical teal-green */
  --sx-primary-dark: #0a5454;
  --sx-secondary: #c98a3a;    /* warm amber */
  --sx-accent: #e0682f;       /* warm capsaicin orange (CTA) */
  --sx-accent-dark: #c4551f;
  --sx-success: #15803d;
  --sx-bg: #f4f8f7;
  --sx-bg-warm: #fff7f1;
  --sx-bg-dark: #0e2624;
  --sx-text: #1f2a29;
  --sx-text-muted: #5a6a68;
  --sx-border: #e3e9e7;
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
  --sx-container: 1100px;
  --sx-pad: 1.5rem;
  --sx-radius: 12px;
  --sx-radius-lg: 18px;
  --sx-shadow-sm: 0 2px 10px rgba(13,110,110,.07);
  --sx-shadow-md: 0 12px 28px rgba(13,110,110,.13);
  --sx-shadow-lg: 0 20px 44px rgba(13,110,110,.17);
  color: var(--sx-text);
  font-family: var(--font-primary);
}
.sinoflex-wrap { max-width: 920px; margin: 0 auto; padding: 0 var(--sx-pad); }

/* Hero */
.sinoflex-hero { background: linear-gradient(180deg, #fff 0%, var(--sx-bg) 100%); padding: 2.6rem 0 2rem; }
.sinoflex-hero__grid { max-width: var(--sx-container); margin: 0 auto; padding: 0 var(--sx-pad); display: grid; grid-template-columns: 1.1fr .9fr; gap: 2.2rem; align-items: center; }
.sinoflex-hero__kicker { display: inline-block; font-size: .74rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--sx-primary); background: rgba(13,110,110,.1); padding: .3rem .7rem; border-radius: 9999px; margin-bottom: .8rem; }
.sinoflex-hero h1 { font-family: var(--font-heading); color: var(--sx-primary); line-height: 1.14; font-size: clamp(1.7rem, 4.4vw, 2.7rem); margin: 0 0 .9rem; }
.sinoflex-hero__lead { font-size: 1.08rem; color: var(--sx-text); line-height: 1.65; margin: 0 0 1.2rem; }
.sinoflex-hero__img { text-align: center; }
.sinoflex-hero__img img { width: 100%; max-width: 340px; margin: 0 auto; filter: drop-shadow(0 16px 32px rgba(0,0,0,.18)); }
.sinoflex-hero__cta { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
.sinoflex-pricechip { display: inline-flex; flex-direction: column; line-height: 1.1; background: #fff; border: 1px solid var(--sx-border); border-radius: var(--sx-radius); padding: .5rem .9rem; box-shadow: var(--sx-shadow-sm); }
.sinoflex-pricechip b { color: var(--sx-accent); font-size: 1.25rem; }
.sinoflex-pricechip s { color: var(--sx-text-muted); font-size: .8rem; font-weight: 500; }
.sinoflex-pricechip span { font-size: .72rem; color: var(--sx-text-muted); }

/* CTA buttons */
.sinoflex-cta { display: inline-block; background: var(--sx-accent); color: #fff; font-weight: 800; padding: .9rem 1.8rem; border-radius: 9999px; min-height: 52px; line-height: 1.6; text-decoration: none; transition: transform .15s, box-shadow .15s, background .15s; }
.sinoflex-cta:hover { transform: translateY(-2px); box-shadow: var(--sx-shadow-md); background: var(--sx-accent-dark); text-decoration: none; color: #fff; }
.sinoflex-cta--lg { font-size: 1.12rem; padding: 1.05rem 2.3rem; min-height: 58px; }
.sinoflex-cta--ghost { background: #fff; color: var(--sx-primary); border: 2px solid var(--sx-primary); }
.sinoflex-cta--ghost:hover { background: var(--sx-primary); color: #fff; }
.sinoflex-ctagroup { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; justify-content: center; margin: 1.2rem 0; }

/* Sections */
.sinoflex-section { padding: 2.4rem 0; }
.sinoflex-section--alt { background: var(--sx-bg); }
.sinoflex-section--warm { background: var(--sx-bg-warm); }
.sinoflex-section--dark { background: var(--sx-bg-dark); color: #dbe9e7; }
.sinoflex-section--dark .sinoflex-h2, .sinoflex-section--dark h3 { color: #fff; }
.sinoflex-h2 { font-family: var(--font-heading); color: var(--sx-primary); line-height: 1.2; font-size: clamp(1.4rem, 3.2vw, 2rem); margin: 0 0 1rem; }
.sinoflex-prose { font-size: 1.02rem; line-height: 1.78; }
.sinoflex-prose p { margin: 0 0 1rem; }
.sinoflex-prose h3 { font-family: var(--font-heading); color: var(--sx-primary); font-size: 1.22rem; margin: 1.7rem 0 .6rem; }
.sinoflex-prose ul { margin: .4rem 0 1.2rem; padding-left: 1.1rem; }
.sinoflex-prose li { margin: .35rem 0; }
.sinoflex-prose strong { color: var(--sx-text); }

/* Banners — aligned to the content section width (narrower than the 1100px
   container, so there is air on the sides on wide screens). Images keep their
   natural aspect ratio: full intrinsic dimensions are declared on each <img>
   (no crop, no layout shift). */
.sinoflex-banner { margin: 2rem auto; max-width: 920px; padding: 0 var(--sx-pad); }
.sinoflex-banner img { width: 100%; height: auto; border-radius: var(--sx-radius-lg); box-shadow: var(--sx-shadow-md); display: block; }
.sinoflex-banner figcaption { font-size: .82rem; color: var(--sx-text-muted); text-align: center; margin-top: .5rem; }

/* Benefits checklist */
.sinoflex-benefits { list-style: none; padding: 0; margin: 1rem 0; display: grid; grid-template-columns: 1fr 1fr; gap: .7rem 1.4rem; }
.sinoflex-benefits li { position: relative; padding-left: 1.7rem; line-height: 1.55; }
.sinoflex-benefits li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--sx-success); font-weight: 800; }

/* Ingredient cards */
.sinoflex-ings { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.1rem; margin-top: 1.3rem; }
.sinoflex-ing { background: #fff; border: 1px solid var(--sx-border); border-radius: var(--sx-radius-lg); overflow: hidden; box-shadow: var(--sx-shadow-sm); display: flex; flex-direction: column; }
.sinoflex-ing img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.sinoflex-ing__b { padding: .9rem 1rem 1.1rem; }
.sinoflex-ing__b h3 { margin: 0 0 .3rem; color: var(--sx-primary); font-size: 1.02rem; font-family: var(--font-heading); }
.sinoflex-ing__b p { margin: 0; font-size: .9rem; color: var(--sx-text-muted); line-height: 1.5; }

/* Steps (HowTo) */
.sinoflex-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.1rem; margin-top: 1.3rem; counter-reset: sx; }
.sinoflex-step { background: #fff; border-radius: var(--sx-radius-lg); padding: 1.3rem; box-shadow: var(--sx-shadow-sm); border-top: 4px solid var(--sx-secondary); position: relative; }
.sinoflex-step::before { counter-increment: sx; content: counter(sx); position: absolute; top: -16px; left: 1.2rem; width: 32px; height: 32px; background: var(--sx-accent); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; box-shadow: var(--sx-shadow-sm); }
.sinoflex-step h3 { margin: .5rem 0 .4rem; color: var(--sx-primary); font-size: 1.08rem; font-family: var(--font-heading); }
.sinoflex-step p { margin: 0; font-size: .92rem; color: var(--sx-text-muted); line-height: 1.55; }

/* Reviews */
.sinoflex-rating { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; margin: 1rem 0 .4rem; }
.sinoflex-rating__score { font-size: 2.4rem; font-weight: 900; color: var(--sx-accent); font-family: var(--font-heading); line-height: 1; }
.sinoflex-rating__stars { color: #e0a022; font-size: 1.2rem; letter-spacing: .06em; }
.sinoflex-rating__meta { font-size: .88rem; color: var(--sx-text-muted); }
.sinoflex-reviews { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.2rem; margin-top: 1.3rem; }
.sinoflex-review { background: #fff; border: 1px solid var(--sx-border); border-radius: var(--sx-radius-lg); padding: 1.3rem; box-shadow: var(--sx-shadow-sm); }
.sinoflex-review__top { display: flex; align-items: center; gap: .8rem; margin-bottom: .7rem; }
.sinoflex-review__top img { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; }
.sinoflex-review__who strong { display: block; color: var(--sx-primary); font-size: .98rem; }
.sinoflex-review__who span { font-size: .82rem; color: var(--sx-text-muted); }
.sinoflex-review__stars { color: #e0a022; font-size: .95rem; letter-spacing: .05em; }
.sinoflex-review p { margin: 0; font-size: .95rem; line-height: 1.6; }

/* Price box */
.sinoflex-pricebox { background: #fff; border: 2px solid var(--sx-primary); border-radius: var(--sx-radius-lg); padding: 1.6rem; max-width: 540px; margin: 1.4rem auto; text-align: center; box-shadow: var(--sx-shadow-md); }
.sinoflex-pricebox .promo { display: inline-block; background: var(--sx-accent); color: #fff; font-weight: 800; font-size: .8rem; letter-spacing: .05em; padding: .3rem .8rem; border-radius: 9999px; margin-bottom: .6rem; }
.sinoflex-pricebox .big { font-size: 2.6rem; font-weight: 900; color: var(--sx-accent); font-family: var(--font-heading); line-height: 1; }
.sinoflex-pricebox .old { color: var(--sx-text-muted); text-decoration: line-through; font-size: 1.05rem; margin-left: .4rem; }
.sinoflex-pricebox .unit { color: var(--sx-text-muted); font-size: .95rem; display: block; margin-top: .3rem; }
.sinoflex-pricebox ul { list-style: none; padding: 0; margin: 1rem 0 1.2rem; text-align: left; display: inline-block; }
.sinoflex-pricebox li { padding-left: 1.6rem; position: relative; margin: .35rem 0; }
.sinoflex-pricebox li::before { content: "✓"; position: absolute; left: 0; color: var(--sx-success); font-weight: 800; }

/* Info table */
.sinoflex-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.sinoflex-table td { padding: .55rem .8rem; border-bottom: 1px solid var(--sx-border); }
.sinoflex-table td:first-child { font-weight: 700; width: 38%; }

/* Notice */
.sinoflex-notice { margin-top: 1.3rem; background: var(--sx-bg-warm); border-left: 4px solid var(--sx-secondary); border-radius: 8px; padding: 1rem 1.2rem; color: #6b4a1f; font-size: .92rem; line-height: 1.65; }

/* FAQ */
.sinoflex-faq { margin-top: 1.2rem; }
.sinoflex-faq details { background: #fff; border: 1px solid var(--sx-border); border-radius: var(--sx-radius); margin-bottom: .7rem; overflow: hidden; }
.sinoflex-faq summary { cursor: pointer; padding: 1rem 1.2rem; font-weight: 700; color: var(--sx-primary); list-style: none; display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.sinoflex-faq summary::-webkit-details-marker { display: none; }
.sinoflex-faq summary::after { content: "+"; font-size: 1.3rem; color: var(--sx-secondary); transition: transform .2s; }
.sinoflex-faq details[open] summary::after { transform: rotate(45deg); }
.sinoflex-faq details > div { padding: 0 1.2rem 1.1rem; color: var(--sx-text-muted); line-height: 1.65; font-size: .96rem; }

/* Related */
.sinoflex-related { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.2rem; }
.sinoflex-related a { display: block; background: #fff; border: 1px solid var(--sx-border); border-left: 4px solid var(--sx-secondary); border-radius: var(--sx-radius-lg); padding: 1.2rem; text-decoration: none; transition: transform .15s, box-shadow .15s; }
.sinoflex-related a:hover { transform: translateY(-3px); box-shadow: var(--sx-shadow-md); text-decoration: none; }
.sinoflex-related strong { display: block; color: var(--sx-primary); font-family: var(--font-heading); font-size: 1.05rem; margin-bottom: .3rem; }
.sinoflex-related span { font-size: .9rem; color: var(--sx-text-muted); line-height: 1.5; display: block; }
.sinoflex-related .go { color: var(--sx-accent); font-weight: 700; font-size: .85rem; display: inline-block; margin-top: .5rem; }

/* Final CTA band */
.sinoflex-finalcta { background: linear-gradient(135deg, var(--sx-primary) 0%, var(--sx-primary-dark) 100%); color: #fff; border-radius: var(--sx-radius-lg); padding: 2.2rem 1.6rem; text-align: center; margin: 1.6rem auto; max-width: var(--sx-container); }
.sinoflex-finalcta h2 { font-family: var(--font-heading); color: #fff; font-size: clamp(1.4rem, 3.2vw, 1.9rem); margin: 0 0 .6rem; }
.sinoflex-finalcta p { color: rgba(255,255,255,.9); max-width: 620px; margin: 0 auto 1.2rem; line-height: 1.6; }
.sinoflex-finalcta .sinoflex-cta { background: #fff; color: var(--sx-accent-dark); }
.sinoflex-finalcta .sinoflex-cta:hover { background: var(--sx-bg-warm); color: var(--sx-accent-dark); }

/* Popup */
.sinoflex-popup { position: fixed; inset: 0; background: rgba(14,38,36,.6); display: none; align-items: center; justify-content: center; z-index: 9999; padding: 1.2rem; }
.sinoflex-popup.open { display: flex; }
.sinoflex-popup__card { background: #fff; border-radius: var(--sx-radius-lg); max-width: 400px; width: 100%; padding: 1.8rem 1.6rem; text-align: center; box-shadow: var(--sx-shadow-lg); position: relative; }
.sinoflex-popup__card img { width: 120px; height: auto; margin: 0 auto .8rem; display: block; }
.sinoflex-popup__card h3 { font-family: var(--font-heading); color: var(--sx-primary); font-size: 1.3rem; margin: 0 0 .5rem; }
.sinoflex-popup__card p { color: var(--sx-text-muted); font-size: .95rem; line-height: 1.55; margin: 0 0 1.1rem; }
.sinoflex-popup__close { position: absolute; top: .6rem; right: .8rem; background: none; border: none; font-size: 1.6rem; line-height: 1; color: var(--sx-text-muted); cursor: pointer; }

@media (max-width: 760px) {
  .sinoflex-hero__grid { grid-template-columns: 1fr; }
  .sinoflex-hero__img { order: -1; }
  .sinoflex-hero__img img { max-width: 230px; }
  .sinoflex-benefits { grid-template-columns: 1fr; }
  .sinoflex-related { grid-template-columns: 1fr; }
}