:root {
  --pc-navy: #062947;
  --pc-blue: #075f96;
  --pc-orange: #ed6f22;
  --pc-ink: #152838;
  --pc-muted: #607181;
  --pc-line: #dfe5e8;
  --pc-sand: #f5f1e9;
  --pc-blue-soft: #eef5f7;
  --pc-white: #ffffff;
}

html { scroll-behavior: smooth; }
body.product-page { color: var(--pc-ink); background: #fff; }
.product-page main { overflow: clip; }
.pc-container { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.pc-section { padding: 72px 0; scroll-margin-top: 84px; }
.pc-section--white { background: #fff; }
.pc-section--sand { background: var(--pc-sand); }
.pc-section--blue-soft { background: var(--pc-blue-soft); }

.pc-eyebrow,
.pc-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--pc-orange);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
}
.pc-eyebrow::before,
.pc-kicker::before { content: ""; width: 26px; height: 2px; background: currentColor; }

/* First screen: a compact editorial gallery built from Haishuo materials. */
.pc-hero {
  position: relative;
  padding: 54px 0 50px;
  background:
    radial-gradient(circle at 82% 16%, rgba(7, 95, 150, .09), transparent 31%),
    linear-gradient(115deg, #faf8f3 0%, #f3eee5 100%);
}
.pc-hero::after {
  content: "海硕";
  position: absolute;
  right: max(20px, calc((100vw - 1160px) / 2));
  bottom: 6px;
  color: rgba(6, 41, 71, .035);
  font-size: 116px;
  font-weight: 900;
  line-height: 1;
  pointer-events: none;
}
.pc-hero-grid { display: grid; grid-template-columns: .86fr 1.14fr; gap: 54px; align-items: center; }
.pc-hero-copy { position: relative; z-index: 1; }
.pc-hero h1 {
  margin: 18px 0 17px;
  color: var(--pc-navy);
  font-size: clamp(43px, 4.2vw, 56px);
  font-weight: 860;
  letter-spacing: -.035em;
  line-height: 1.08;
}
.pc-hero h1 em { color: var(--pc-blue); font-style: normal; }
.pc-hero-copy > p { max-width: 520px; color: #536878; font-size: 15px; line-height: 1.85; }
.pc-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 25px; }
.pc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.pc-btn:hover { transform: translateY(-2px); }
.pc-btn--primary { color: #fff; background: var(--pc-orange); box-shadow: 0 10px 24px rgba(237, 111, 34, .2); }
.pc-btn--secondary { color: var(--pc-navy); border-color: #a9b6bf; background: rgba(255,255,255,.56); }
.pc-btn--outline { color: #fff; border-color: rgba(255,255,255,.5); background: transparent; }
.pc-hero-facts { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 24px; color: #667987; font-size: 12px; }
.pc-hero-facts span { display: inline-flex; align-items: center; gap: 5px; }
.pc-hero-facts b { color: var(--pc-navy); font-weight: 850; }

.pc-static-gallery {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 10px;
  min-width: 0;
  height: 430px;
}
.pc-static-gallery figure {
  min-width: 0;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(6, 41, 71, .14);
  background: #071f34;
}
.pc-static-gallery img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.pc-static-main {
  border-radius: 14px 0 0 14px;
  box-shadow: 0 22px 54px rgba(25, 48, 64, .17);
}
.pc-static-support {
  display: grid;
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 10px;
  min-height: 0;
}
.pc-static-support figure { background: #f3f4f3; }
.pc-static-support figure:first-child { border-radius: 0 14px 0 0; }
.pc-static-support figure:last-child { border-radius: 0 0 14px 0; }

.pc-catalog-nav {
  position: sticky;
  top: 0;
  z-index: 28;
  border-bottom: 1px solid var(--pc-line);
  background: rgba(255,255,255,.95);
  box-shadow: 0 8px 22px rgba(11,41,64,.05);
  backdrop-filter: blur(14px);
}
.pc-catalog-nav .pc-container { display: flex; gap: 8px; overflow-x: auto; padding-block: 10px; scrollbar-width: none; }
.pc-catalog-nav .pc-container::-webkit-scrollbar { display: none; }
.pc-catalog-nav a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 15px;
  border: 1px solid #e5eaed;
  border-radius: 999px;
  color: #355267;
  background: #f5f7f8;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}
.pc-catalog-nav a:hover { color: #fff; border-color: var(--pc-blue); background: var(--pc-blue); }

.pc-section-head { display: grid; grid-template-columns: 1fr minmax(300px, 430px); gap: 46px; align-items: end; margin-bottom: 32px; }
.pc-section-head h2 { margin: 11px 0 0; color: var(--pc-navy); font-size: clamp(32px, 3.5vw, 40px); line-height: 1.18; letter-spacing: -.025em; font-weight: 860; }
.pc-section-head > p { color: var(--pc-muted); font-size: 14px; line-height: 1.85; }
.pc-section-head--compact { margin-bottom: 28px; }

/* Four grades: one real lineup and a compact information matrix. */
.pc-main-layout { display: grid; grid-template-columns: .92fr 1.08fr; gap: 20px; align-items: stretch; }
.pc-lineup-panel { padding: 22px 18px 14px; border: 1px solid var(--pc-line); background: linear-gradient(155deg, #fafafa, #f0f2f3); }
.pc-lineup-heading span { display: block; color: var(--pc-orange); font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.pc-lineup-heading b { display: block; margin-top: 5px; color: var(--pc-navy); font-size: 18px; }
.pc-lineup { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: end; gap: 4px; min-height: 340px; margin-top: 10px; }
.pc-lineup figure { min-width: 0; margin: 0; text-align: center; }
.pc-lineup img { width: 100%; height: 286px; object-fit: contain; mix-blend-mode: multiply; }
.pc-lineup figcaption { margin-top: 8px; color: #385367; font-size: 11px; font-weight: 800; white-space: nowrap; }
.pc-photo-note { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 13px; color: #6a7882; font-size: 11px; }
.pc-photo-note i { color: var(--pc-orange); }

.pc-grade-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; align-self: center; }
.pc-grade {
  --grade: var(--pc-orange);
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  align-content: start;
  min-height: 196px;
  padding: 22px 20px 18px;
  border: 1px solid var(--pc-line);
  border-top: 3px solid var(--grade);
  background: #fff;
}
.pc-grade--economy { --grade: #df7b32; }
.pc-grade--durable { --grade: #4d9b69; }
.pc-grade--pure { --grade: #3c5f9e; }
.pc-grade--flagship { --grade: #14738f; }
.pc-grade-index { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; color: #fff; background: var(--grade); font-size: 12px; font-weight: 850; }
.pc-grade h3 { color: var(--pc-navy); font-size: 20px; font-weight: 850; line-height: 1.25; }
.pc-grade p { margin-top: 7px; color: var(--pc-muted); font-size: 13px; line-height: 1.65; }
.pc-grade ul { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding: 0; list-style: none; }
.pc-grade li { padding: 6px 9px; border-radius: 999px; color: #466071; background: #f0f4f6; font-size: 11px; font-weight: 750; }

.pc-capacity-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.pc-capacity-card { overflow: hidden; border: 1px solid #dedbd4; background: rgba(255,255,255,.86); }
.pc-capacity-media { height: 218px; padding: 12px; background: #fff; }
.pc-capacity-media img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.pc-capacity-copy { padding: 16px; border-top: 1px solid #ebe7df; }
.pc-capacity-copy b { display: block; color: var(--pc-navy); font-size: 18px; }
.pc-capacity-copy span { display: block; margin-top: 4px; color: var(--pc-muted); font-size: 13px; }
.pc-capacity-card--main { border-color: #9fb5c2; }
.pc-capacity-card--main .pc-capacity-copy { color: #fff; border-color: transparent; background: var(--pc-navy); }
.pc-capacity-card--main b, .pc-capacity-card--main span { color: #fff; }
.pc-capacity-card--main span { opacity: .72; }

/* Product families keep every package visible; nothing is hidden in a mobile carousel. */
.pc-family-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 16px; }
.pc-family-feature { position: relative; overflow: hidden; min-height: 450px; margin: 0; border: 1px solid var(--pc-line); background: #fff; }
.pc-family-feature > img { width: 100%; height: 100%; object-fit: contain; padding: 16px 10px 62px; mix-blend-mode: multiply; }
.pc-family-feature figcaption { position: absolute; inset: auto 0 0; padding: 16px 18px; color: #fff; background: var(--pc-navy); }
.pc-family-feature strong { display: block; font-size: 20px; }
.pc-family-feature span { display: block; margin-top: 3px; color: rgba(255,255,255,.68); font-size: 12px; }
.pc-package-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.pc-package-card { display: grid; grid-template-columns: 1fr .9fr; min-width: 0; min-height: 219px; border: 1px solid var(--pc-line); background: #fff; }
.pc-package-media { overflow: hidden; min-width: 0; padding: 7px; background: #f7f7f6; }
.pc-package-media img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.pc-package-card > div:last-child { display: flex; flex-direction: column; justify-content: center; padding: 17px 14px; }
.pc-package-card small { color: var(--pc-orange); font-size: 10px; font-weight: 850; letter-spacing: .12em; }
.pc-package-card h3 { margin-top: 7px; color: var(--pc-navy); font-size: 19px; font-weight: 850; line-height: 1.25; }
.pc-package-card p { margin-top: 6px; color: var(--pc-muted); font-size: 13px; }

.pc-heating-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.pc-heating-card { overflow: hidden; border: 1px solid #d5e0e4; background: #fff; }
.pc-heating-media { height: 292px; padding: 12px; background: #fafcfc; }
.pc-heating-media img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.pc-heating-card > div:last-child { padding: 17px 18px 19px; border-top: 1px solid #e6edef; }
.pc-heating-card span { color: var(--pc-orange); font-size: 10px; font-weight: 850; letter-spacing: .1em; }
.pc-heating-card h3 { margin-top: 6px; color: var(--pc-navy); font-size: 20px; font-weight: 850; }
.pc-heating-card p { margin-top: 5px; color: var(--pc-muted); font-size: 13px; }

.pc-accessory-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.pc-accessory { overflow: hidden; border: 1px solid var(--pc-line); background: #fff; }
.pc-accessory-media { height: 220px; background: #f6f7f7; }
.pc-accessory-media img { width: 100%; height: 100%; object-fit: cover; }
.pc-accessory-media--contain img { object-fit: contain; padding: 12px; mix-blend-mode: multiply; }
.pc-accessory > div:last-child { padding: 15px 16px 17px; border-top: 1px solid #edf0f2; }
.pc-accessory b { display: block; color: var(--pc-navy); font-size: 16px; }
.pc-accessory span { display: block; margin-top: 4px; color: var(--pc-muted); font-size: 13px; line-height: 1.55; }

.pc-boundary { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; margin-top: 22px; padding: 15px 17px; border-left: 3px solid var(--pc-orange); color: #536978; background: #f5f7f8; font-size: 13px; line-height: 1.7; }
.pc-boundary i { margin-top: 2px; color: var(--pc-orange); font-size: 17px; }

.pc-cta { padding: 60px 0; color: #fff; background: linear-gradient(118deg, #052743, #086a9f); }
.pc-cta-inner { display: grid; grid-template-columns: 1fr auto; gap: 34px; align-items: center; }
.pc-cta-inner > div:first-child > span { color: #7ed2f7; font-size: 12px; font-weight: 850; letter-spacing: .12em; }
.pc-cta h2 { margin-top: 8px; font-size: clamp(30px, 3.4vw, 42px); line-height: 1.2; font-weight: 850; }
.pc-cta p { margin-top: 8px; color: rgba(255,255,255,.7); font-size: 14px; line-height: 1.7; }
.pc-cta .pc-hero-actions { margin-top: 0; }
.product-page .chat-tooltip { display: none !important; }

@media (max-width: 1024px) {
  .pc-hero-grid { grid-template-columns: .86fr 1.14fr; gap: 30px; }
  .pc-static-gallery { height: 390px; }
  .pc-hero h1 { font-size: 43px; }
  .pc-main-layout { grid-template-columns: 1fr; }
  .pc-lineup { min-height: 300px; }
  .pc-lineup img { height: 250px; }
  .pc-family-layout { grid-template-columns: .72fr 1.28fr; }
  .pc-family-feature { min-height: 410px; }
  .pc-package-card { min-height: 199px; }
  .pc-accessory-media { height: 190px; }
}

@media (max-width: 767px) {
  .pc-container { width: min(100% - 32px, 1160px); }
  .pc-section { padding: 50px 0; scroll-margin-top: 74px; }
  .pc-eyebrow, .pc-kicker { font-size: 11px; letter-spacing: .07em; }
  .pc-eyebrow::before, .pc-kicker::before { width: 20px; }

  .pc-hero { padding: 30px 0 24px; }
  .pc-hero::after { display: none; }
  .pc-hero-grid { grid-template-columns: 1fr; gap: 20px; }
  .pc-hero h1 { margin: 13px 0 12px; font-size: clamp(32px, 9.4vw, 36px); line-height: 1.13; letter-spacing: -.025em; }
  .pc-hero-copy > p { font-size: 14px; line-height: 1.7; }
  .pc-hero-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 18px; }
  .pc-btn { min-width: 0; min-height: 44px; padding: 0 11px; font-size: 13px; }
  .pc-hero-facts { display: none; }
  .pc-static-gallery { grid-template-columns: 1fr; gap: 8px; height: auto; }
  .pc-static-main { aspect-ratio: 1; border-radius: 10px; }
  .pc-static-support { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: 150px; gap: 8px; }
  .pc-static-support figure:first-child,
  .pc-static-support figure:last-child { border-radius: 8px; }

  .pc-catalog-nav a { min-height: 44px; padding-inline: 13px; font-size: 12px; }
  .pc-section-head { grid-template-columns: 1fr; gap: 12px; margin-bottom: 24px; }
  .pc-section-head h2 { margin-top: 9px; font-size: clamp(27px, 7.5vw, 30px); line-height: 1.2; }
  .pc-section-head > p { font-size: 13px; line-height: 1.75; }

  .pc-main-layout { gap: 14px; }
  .pc-lineup-panel { padding: 16px 10px 12px; }
  .pc-lineup-heading { padding-inline: 3px; }
  .pc-lineup-heading b { font-size: 16px; }
  .pc-lineup { min-height: 0; gap: 2px; margin-top: 10px; }
  .pc-lineup img { height: 153px; }
  .pc-lineup figcaption { margin-top: 5px; font-size: 12px; letter-spacing: -.03em; }
  .pc-photo-note { margin-top: 11px; font-size: 12px; }
  .pc-grade-grid { gap: 8px; }
  .pc-grade { grid-template-columns: 32px 1fr; gap: 8px; min-height: 151px; padding: 14px 11px 12px; }
  .pc-grade-index { width: 30px; height: 30px; font-size: 12px; }
  .pc-grade h3 { font-size: 16px; }
  .pc-grade p { margin-top: 5px; font-size: 13px; line-height: 1.5; }
  .pc-grade ul { gap: 4px; margin-top: 9px; }
  .pc-grade li { padding: 5px 6px; font-size: 12px; }

  .pc-capacity-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
  .pc-capacity-media { height: 144px; padding: 8px; }
  .pc-capacity-copy { padding: 12px; }
  .pc-capacity-copy b { font-size: 16px; }
  .pc-capacity-copy span { font-size: 13px; }

  .pc-family-layout { grid-template-columns: 1fr; gap: 10px; }
  .pc-family-feature { min-height: 275px; }
  .pc-family-feature > img { padding: 8px 6px 54px; }
  .pc-family-feature figcaption { padding: 12px 14px; }
  .pc-family-feature strong { font-size: 18px; }
  .pc-family-feature span { font-size: 12px; }
  .pc-package-grid { gap: 8px; }
  .pc-package-card { grid-template-columns: 1fr; min-height: 0; }
  .pc-package-media { height: 132px; padding: 5px; }
  .pc-package-card > div:last-child { padding: 11px 10px 13px; }
  .pc-package-card h3 { margin-top: 4px; font-size: 16px; }
  .pc-package-card p { margin-top: 3px; font-size: 13px; }

  .pc-heating-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .pc-heating-card { min-width: 0; }
  .pc-heating-media { height: 166px; padding: 7px; }
  .pc-heating-card > div:last-child { padding: 12px 11px 14px; }
  .pc-heating-card h3 { margin-top: 4px; font-size: 16px; }
  .pc-heating-card p { font-size: 13px; }
  .pc-heating-card:nth-child(3) { grid-column: 1 / -1; display: grid; grid-template-columns: 44% 1fr; }
  .pc-heating-card:nth-child(3) .pc-heating-media { height: 184px; }
  .pc-heating-card:nth-child(3) > div:last-child { display: flex; flex-direction: column; justify-content: center; border-top: 0; border-left: 1px solid #e6edef; }

  .pc-accessory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
  .pc-accessory-media { height: 145px; }
  .pc-accessory > div:last-child { padding: 12px 11px 14px; }
  .pc-accessory b { font-size: 15px; }
  .pc-accessory span { font-size: 13px; }
  .pc-boundary { margin-top: 18px; padding: 13px 14px; font-size: 13px; }

  .pc-cta { padding: 48px 0; }
  .pc-cta-inner { grid-template-columns: 1fr; gap: 22px; }
  .pc-cta h2 { font-size: 29px; }
  .pc-cta p { font-size: 13px; }
  .pc-cta .pc-hero-actions { margin-top: 0; }
  .product-page .chat-trigger { display: none !important; }
}

@media (max-width: 370px) {
  .pc-container { width: min(100% - 28px, 1160px); }
  .pc-static-support { grid-template-rows: 140px; }
  .pc-lineup img { height: 139px; }
  .pc-lineup figcaption { font-size: 12px; }
  .pc-grade { min-height: 158px; padding-inline: 9px; }
  .pc-grade h3 { font-size: 15px; }
  .pc-package-media { height: 120px; }
  .pc-heating-media { height: 150px; }
  .pc-accessory-media { height: 132px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}