/* =========================================================
   KAKAER Body Kits — design system v2
   Single stylesheet, system fonts only (zero font requests)
   ========================================================= */

:root {
  --bg: #07080a;
  --bg-2: #0a0c0f;
  --surface: #101317;
  --surface-2: #161b21;
  --line: rgba(255, 255, 255, .075);
  --line-2: rgba(255, 255, 255, .14);
  --text: #f3f5f7;
  --muted: #9aa3ad;
  --dim: #6b747e;
  --red: #e10600;
  --red-2: #ff2b1c;
  --red-soft: rgba(225, 6, 0, .12);
  --wa: #25d366;
  --radius: 16px;
  --radius-sm: 10px;
  --max: 1200px;
  --hh: 68px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Helvetica Neue", Arial, "PingFang SC", sans-serif;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow: 0 18px 44px -20px rgba(0, 0, 0, .9);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern" 1, "liga" 1;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--red); color: #fff; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--hh);
  background: rgba(7, 8, 10, .72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.scrolled { background: rgba(7, 8, 10, .94); border-bottom-color: var(--line-2); }

.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--hh); gap: 20px; }

.logo { font-weight: 800; font-size: 1.18rem; letter-spacing: .16em; display: inline-flex; align-items: center; }
.logo span { color: var(--red); }

.nav { display: flex; align-items: center; gap: 2px; }
.nav a {
  position: relative; padding: 9px 14px; font-size: .875rem; font-weight: 500;
  color: var(--muted); border-radius: 999px;
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav a:hover { color: var(--text); background: rgba(255, 255, 255, .05); }
.nav a.active { color: var(--text); }
.nav a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px;
  height: 2px; border-radius: 2px; background: var(--red);
}
.nav-cta {
  background: var(--red) !important; color: #fff !important; font-weight: 600 !important;
  margin-left: 10px; padding: 10px 20px !important; border-radius: 999px !important;
  box-shadow: 0 8px 22px -10px rgba(225, 6, 0, .9);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease) !important;
}
.nav-cta:hover { background: var(--red-2) !important; transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

.menu-toggle {
  display: none; align-items: center; justify-content: center;
  background: rgba(255, 255, 255, .04); border: 1px solid var(--line-2);
  color: var(--text); width: 42px; height: 42px; border-radius: 12px; cursor: pointer; font-size: 1.1rem;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 15px 28px; font-size: .94rem; font-weight: 600; letter-spacing: .01em;
  border-radius: 999px; border: 1px solid transparent; cursor: pointer;
  transition: transform .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-red { background: var(--red); color: #fff; box-shadow: 0 14px 34px -18px rgba(225, 6, 0, .95); }
.btn-red:hover { background: var(--red-2); box-shadow: 0 18px 40px -16px rgba(225, 6, 0, .85); }
.btn-wa { background: var(--wa); color: #fff; box-shadow: 0 14px 34px -18px rgba(37, 211, 102, .9); }
.btn-wa:hover { background: #20bd5a; }
.btn-ghost { background: rgba(255, 255, 255, .03); color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { background: rgba(255, 255, 255, .07); border-color: rgba(255, 255, 255, .28); }
.btn-sm { padding: 11px 20px; font-size: .86rem; }

/* ---------- hero ---------- */
.hero {
  position: relative; isolation: isolate;
  min-height: clamp(520px, 78vh, 720px);
  display: flex; align-items: flex-end;
  overflow: hidden; background: #050607;
  border-bottom: 1px solid var(--line);
}
.hero-media { position: absolute; inset: 0; z-index: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 42%; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(78deg, rgba(4, 5, 6, .9) 0%, rgba(4, 5, 6, .5) 45%, rgba(4, 5, 6, .06) 75%, rgba(4, 5, 6, .28) 100%),
    linear-gradient(0deg, var(--bg) 2%, rgba(7, 8, 10, .28) 30%, transparent 62%);
}
.hero-track { position: absolute; inset: 0; z-index: 2; }
.hero-slide {
  position: absolute; inset: 0; display: block; opacity: 0;
  background-size: cover; background-position: center 42%;
  transition: opacity .8s var(--ease);
}
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(78deg, rgba(4, 5, 6, .9) 0%, rgba(4, 5, 6, .5) 45%, rgba(4, 5, 6, .06) 75%, rgba(4, 5, 6, .28) 100%),
    linear-gradient(0deg, var(--bg) 2%, rgba(7, 8, 10, .28) 30%, transparent 62%);
}
.hero-slide.active { opacity: 1; }

.hero-slide-cap {
  position: absolute; right: 28px; left: auto; bottom: 30px; z-index: 3; max-width: min(42vw, 400px);
  display: flex; flex-direction: column; align-items: flex-end; text-align: right; gap: 8px;
}
.hero-slide-cap strong {
  font-size: .95rem; font-weight: 600; color: #eef1f4; line-height: 1.4;
  text-shadow: 0 2px 14px rgba(0, 0, 0, .8);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.hero-copy { position: relative; z-index: 4; width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px 72px; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 15px 7px 11px; margin-bottom: 22px;
  border: 1px solid rgba(255, 255, 255, .16); border-radius: 999px;
  background: rgba(255, 255, 255, .05); backdrop-filter: blur(6px);
  font-size: .74rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: #dfe4e9;
}
.hero-kicker::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--red);
  box-shadow: 0 0 0 4px rgba(225, 6, 0, .22);
}
.hero h1 {
  font-size: clamp(2.15rem, 5.2vw, 4.1rem); font-weight: 800; line-height: 1.04;
  letter-spacing: -.035em; max-width: 15ch; margin-bottom: 20px;
  text-wrap: balance;
}
.hero h1 em { font-style: normal; color: var(--red-2); }
.hero-sub { font-size: clamp(.98rem, 1.4vw, 1.12rem); color: #b9c1ca; max-width: 46ch; margin-bottom: 34px; }
.hero-btns { display: flex; flex-wrap: wrap; gap: 13px; }
/* hero 内的 WhatsApp 按钮：玻璃质感 + 绿色小圆点，避免整块绿色与品牌红黑冲突 */
.hero-btns .btn-wa {
  background: rgba(255, 255, 255, .07); color: #fff;
  border-color: rgba(255, 255, 255, .22); box-shadow: none;
  backdrop-filter: blur(8px);
}
.hero-btns .btn-wa::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--wa); box-shadow: 0 0 0 3px rgba(37, 211, 102, .25);
}
.hero-btns .btn-wa:hover { background: rgba(37, 211, 102, .16); border-color: rgba(37, 211, 102, .55); }

.hero-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .2); background: rgba(6, 7, 9, .5);
  backdrop-filter: blur(6px); color: #fff; font-size: 1.5rem; line-height: 1; cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.hero-nav:hover { background: rgba(225, 6, 0, .9); border-color: transparent; transform: translateY(-50%) scale(1.06); }
.hero-prev { left: 20px; }
.hero-next { right: 20px; }

.hero-dots { position: absolute; bottom: 26px; left: 0; right: 0; z-index: 5; display: flex; justify-content: center; gap: 9px; }
.hero-dots button {
  width: 9px; height: 9px; border-radius: 50%; border: 0; padding: 0; cursor: pointer;
  background: rgba(255, 255, 255, .3); transition: width .25s var(--ease), background .25s var(--ease);
}
.hero-dots button.active { background: var(--red); width: 26px; border-radius: 5px; }

/* hero stats strip */
.hero-stats {
  position: relative; z-index: 4; border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(11, 13, 16, .85), rgba(7, 8, 10, .95));
  backdrop-filter: blur(10px);
}
.hero-stats::before {
  content: ""; position: absolute; top: -1px; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent 5%, rgba(225, 6, 0, .65) 50%, transparent 95%);
}
.hero-stats .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 22px 20px; border-right: 1px solid var(--line); transition: background .25s var(--ease); }
.stat:hover { background: rgba(255, 255, 255, .025); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font-size: clamp(1.25rem, 2vw, 1.65rem); font-weight: 800; letter-spacing: -.02em; }
.stat span { font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); }

/* ---------- sections ---------- */
.sec { padding: 92px 0; }
.sec-tight { padding: 64px 0; }
.sec-alt { background: linear-gradient(180deg, var(--bg-2), var(--bg)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.sec-head { margin-bottom: 40px; max-width: 720px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker {
  display: block; font-size: .72rem; font-weight: 700; letter-spacing: .18em;
  text-transform: uppercase; color: var(--red-2); margin-bottom: 12px;
}
.sec-head h2 {
  font-size: clamp(1.6rem, 3.1vw, 2.35rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.12;
  margin-bottom: 12px; text-wrap: balance;
}
.sec-head p { color: var(--muted); font-size: 1rem; max-width: 58ch; }
.sec-head.center p { margin: 0 auto; }

.sec-foot { text-align: center; margin-top: 40px; }

/* ---------- product grid ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }

.pcard {
  display: flex; flex-direction: column; position: relative;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease), background .28s var(--ease);
}
.pcard:hover { transform: translateY(-5px); border-color: rgba(225, 6, 0, .45); box-shadow: var(--shadow); background: var(--surface-2); }
.pcard::before {
  content: ""; position: absolute; inset: 0 0 auto; height: 2px; z-index: 3;
  background: linear-gradient(90deg, var(--red), rgba(225, 6, 0, 0));
  opacity: 0; transition: opacity .28s var(--ease);
}
.pcard:hover::before { opacity: 1; }

.pcard-img { position: relative; aspect-ratio: 4 / 3; background: #0d1013; overflow: hidden; }
.pcard-img::after {
  content: ""; position: absolute; inset: 0; z-index: 3; pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 6, 7, .05) 55%, rgba(5, 6, 7, .45) 100%);
}
.pcard-img img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease), opacity .4s var(--ease);
}
.pcard-img-a { z-index: 1; }
.pcard-img-b { z-index: 2; opacity: 0; }
.pcard:hover .pcard-img-a { transform: scale(1.05); }
.pcard:hover .pcard-img-b { opacity: 1; transform: scale(1.05); }
.pcard-ph {
  position: absolute; inset: auto 12px 12px auto; z-index: 3;
  font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  padding: 5px 10px; border-radius: 999px; background: rgba(0, 0, 0, .6); color: var(--muted);
  border: 1px solid var(--line-2);
}

.pcard-body { padding: 18px 19px 20px; display: flex; flex-direction: column; gap: 7px; flex: 1; }
.pcard-body h3 {
  font-size: .98rem; font-weight: 600; line-height: 1.35; letter-spacing: -.01em;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.pcard-model { font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); }
.pcard-price { margin-top: auto; padding-top: 10px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: .84rem; font-variant-numeric: tabular-nums; }
.price-frp, .price-cf {
  padding: 4px 9px; border-radius: 7px; font-weight: 600; font-size: .78rem;
  background: rgba(255, 255, 255, .055); border: 1px solid var(--line);
}
.price-cf { color: #d9dee4; background: rgba(255, 255, 255, .09); }
.price-from { color: var(--muted); font-weight: 600; font-size: .82rem; }
.price-sep { color: var(--dim); font-size: .74rem; }

/* ---------- brand grid ---------- */
.brand-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); gap: 16px; }
.brand-card {
  position: relative; display: block; aspect-ratio: 4 / 3;
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  background: var(--surface);
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}
.brand-card img { width: 100%; height: 100%; object-fit: cover; opacity: .78; transition: transform .6s var(--ease), opacity .3s var(--ease); }
.brand-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(4, 5, 6, .92) 4%, rgba(4, 5, 6, .25) 52%, transparent 100%);
}
.brand-card span {
  position: absolute; left: 14px; bottom: 12px; z-index: 2;
  font-size: .84rem; font-weight: 600; letter-spacing: .01em;
}
.brand-card:hover { transform: translateY(-4px); border-color: rgba(225, 6, 0, .45); box-shadow: var(--shadow); }
.brand-card:hover img { transform: scale(1.06); opacity: 1; }

/* ---------- why / features ---------- */
.why-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.why-item {
  position: relative; display: flex; flex-direction: column; justify-content: flex-end;
  min-height: 280px; padding: 26px; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); background: var(--surface);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.why-item img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .5; transition: transform .7s var(--ease), opacity .3s var(--ease); }
.why-item::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(5, 6, 8, .96) 0%, rgba(5, 6, 8, .55) 45%, rgba(5, 6, 8, .15) 100%);
}
.why-item strong { position: relative; z-index: 2; font-size: 1.06rem; font-weight: 700; letter-spacing: -.01em; margin-bottom: 6px; }
.why-item span { position: relative; z-index: 2; font-size: .88rem; color: #b6bec7; line-height: 1.5; }
.why-item:hover { transform: translateY(-4px); border-color: rgba(225, 6, 0, .4); }
.why-item:hover img { transform: scale(1.05); opacity: .62; }

/* ---------- CTA band ---------- */
.cta {
  position: relative; overflow: hidden; text-align: center;
  padding: 68px 32px; border-radius: 24px;
  border: 1px solid rgba(225, 6, 0, .28);
  background:
    radial-gradient(120% 130% at 50% 0%, rgba(225, 6, 0, .32) 0%, rgba(225, 6, 0, .06) 45%, transparent 72%),
    linear-gradient(180deg, #111417, #0a0c0f);
}
.cta::before {
  content: ""; position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background-image: repeating-linear-gradient(115deg, rgba(255, 255, 255, .045) 0 1px, transparent 1px 16px);
  mask-image: radial-gradient(80% 80% at 50% 20%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(80% 80% at 50% 20%, #000 0%, transparent 75%);
}
.cta h2 { position: relative; font-size: clamp(1.55rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.03em; margin-bottom: 12px; }
.cta p { position: relative; color: var(--muted); margin-bottom: 30px; }
.cta-btns { position: relative; display: flex; justify-content: center; flex-wrap: wrap; gap: 13px; }

/* ---------- page hero (inner pages) ---------- */
.page-hero {
  position: relative; overflow: hidden;
  padding: 76px 0 56px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(90% 140% at 12% 0%, rgba(225, 6, 0, .16) 0%, transparent 62%),
    linear-gradient(180deg, #0b0d10, var(--bg));
}
.page-hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .35;
  background-image: repeating-linear-gradient(115deg, rgba(255, 255, 255, .04) 0 1px, transparent 1px 18px);
  mask-image: linear-gradient(90deg, #000, transparent 70%);
  -webkit-mask-image: linear-gradient(90deg, #000, transparent 70%);
}
.page-hero h1 { position: relative; font-size: clamp(2rem, 4.6vw, 3.1rem); font-weight: 800; letter-spacing: -.035em; line-height: 1.06; margin-bottom: 12px; }
.page-hero p { position: relative; color: var(--muted); font-size: 1.02rem; max-width: 60ch; }

/* ---------- filters ---------- */
.filters {
  display: flex; flex-wrap: wrap; align-items: flex-end; gap: 16px;
  padding: 20px; margin-bottom: 26px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
}
.filter-group { display: flex; flex-direction: column; gap: 7px; min-width: 180px; flex: 1 1 180px; }
.filter-group label { font-size: .7rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); }
.filter-group select {
  appearance: none; -webkit-appearance: none;
  padding: 12px 38px 12px 14px; border-radius: var(--radius-sm);
  background: #0b0e11 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239aa3ad' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 14px center;
  border: 1px solid var(--line-2); color: var(--text); font-size: .9rem; cursor: pointer;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.filter-group select:hover { border-color: rgba(255, 255, 255, .26); }
.filter-group select:focus-visible { outline: 2px solid var(--red); outline-offset: 1px; }
.filter-group select:disabled { opacity: .45; cursor: not-allowed; }
.filter-reset {
  padding: 12px 20px; border-radius: var(--radius-sm); cursor: pointer;
  background: transparent; border: 1px solid var(--line-2); color: var(--muted); font-size: .86rem; font-weight: 600;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.filter-reset:hover { color: var(--text); border-color: rgba(255, 255, 255, .3); }
.results-count { color: var(--dim); font-size: .84rem; margin-bottom: 18px; letter-spacing: .02em; }

/* ---------- pager ---------- */
.pager { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 44px; }
.pager a, .pager button, .pager span {
  min-width: 40px; height: 40px; padding: 0 12px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 10px; border: 1px solid var(--line-2); background: var(--surface);
  color: var(--muted); font-size: .86rem; font-weight: 600; cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}
.pager a:hover, .pager button:hover { color: var(--text); border-color: rgba(255, 255, 255, .3); }
.pager .on, .pager [aria-current] { background: var(--red); border-color: var(--red); color: #fff; }

.no-results { color: var(--dim); text-align: center; padding: 48px 0; }

/* ---------- product detail ---------- */
.breadcrumb { padding: 22px 0 6px; font-size: .8rem; color: var(--dim); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--text); }

.pdetail { display: grid; grid-template-columns: 1.08fr .92fr; gap: 44px; padding: 20px 0 64px; align-items: start; }

.pgallery { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; position: sticky; top: calc(var(--hh) + 20px); }
.gallery-main { position: relative; background: #0b0e11; }
.gallery-main img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.gallery-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 2;
  width: 42px; height: 42px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(255, 255, 255, .2); background: rgba(5, 6, 8, .55);
  backdrop-filter: blur(6px); color: #fff; font-size: 1.4rem; line-height: 1;
  transition: background .2s var(--ease), transform .2s var(--ease);
}
.gallery-nav:hover { background: rgba(225, 6, 0, .9); transform: translateY(-50%) scale(1.06); }
.gallery-prev { left: 12px; }
.gallery-next { right: 12px; }
.gallery-thumbs { display: flex; gap: 8px; padding: 12px; overflow-x: auto; scrollbar-width: thin; }
.gallery-thumbs img, .gallery-thumbs button {
  width: 76px; height: 57px; object-fit: cover; border-radius: 8px; flex: 0 0 auto;
  border: 1px solid var(--line); opacity: .6; cursor: pointer; background: #0b0e11;
  transition: opacity .2s var(--ease), border-color .2s var(--ease);
}
.gallery-thumbs img:hover, .gallery-thumbs button:hover,
.gallery-thumbs .on { opacity: 1; border-color: var(--red); }

.pinfo h1 { font-size: clamp(1.45rem, 2.6vw, 2rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.16; margin-bottom: 14px; }
.pcard-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.tag {
  font-size: .73rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  padding: 5px 11px; border-radius: 999px; color: #cfd6de;
  background: rgba(255, 255, 255, .06); border: 1px solid var(--line-2);
}
.kit-prices { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
.kit-price {
  flex: 1 1 180px; padding: 16px 18px; border-radius: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .02));
  border: 1px solid var(--line-2);
}
.kit-price.carbon { border-color: rgba(225, 6, 0, .34); background: linear-gradient(180deg, rgba(225, 6, 0, .12), rgba(225, 6, 0, .03)); }
.kit-label { display: block; font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); margin-bottom: 6px; }
.kit-amt { font-size: 1.35rem; font-weight: 800; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.price-note { font-size: .8rem; color: var(--dim); margin-bottom: 20px; }
.kit-note { font-size: .86rem; color: var(--muted); padding: 12px 14px; border-left: 2px solid var(--red); background: rgba(255, 255, 255, .03); border-radius: 0 8px 8px 0; margin-bottom: 18px; }
.desc { color: #c2cad3; font-size: .96rem; line-height: 1.7; margin: 4px 0 24px; }
.specs { display: grid; grid-template-columns: 112px 1fr; gap: 10px 18px; padding: 20px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-bottom: 24px; font-size: .9rem; }
.specs dt { color: var(--dim); font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; padding-top: 2px; }
.specs dd { color: var(--text); }
.pactions { display: flex; flex-wrap: wrap; gap: 12px; }
.pactions .btn { flex: 1 1 auto; }

.mat-legend { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 6px; }
.mat-legend span { display: inline-flex; align-items: center; gap: 7px; font-size: .78rem; color: var(--dim); }
.mat-legend i { width: 9px; height: 9px; border-radius: 3px; background: rgba(255, 255, 255, .25); display: inline-block; }
.mat-legend i.cf { background: var(--red); }
.mat-hint { font-size: .78rem; color: var(--dim); margin-bottom: 14px; }

/* parts table */
.parts-block { margin-top: 8px; }
.parts-block h3 { font-size: 1.1rem; font-weight: 700; letter-spacing: -.02em; margin-bottom: 16px; }
.parts-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: .9rem; }
.parts-table thead th {
  text-align: left; padding: 11px 14px; font-size: .7rem; letter-spacing: .13em; text-transform: uppercase;
  color: var(--dim); font-weight: 700; border-bottom: 1px solid var(--line-2);
}
.parts-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.parts-table tr:hover td { background: rgba(255, 255, 255, .022); }
.parts-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.part-img-cell { width: 66px; }
.part-thumb {
  width: 54px; height: 41px; border-radius: 6px; object-fit: cover;
  border: 1px solid var(--line); background: #0b0e11; cursor: zoom-in; padding: 0;
}
.part-thumb.empty { background: rgba(255, 255, 255, .04); cursor: default; }
.part-note { font-size: .78rem; color: var(--dim); }
.parts-block-wrap { overflow-x: auto; }

/* lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 300; display: flex; align-items: center; justify-content: center;
  background: rgba(3, 4, 5, .94); backdrop-filter: blur(8px); padding: 24px;
  animation: fade .2s var(--ease);
}
.lightbox img { max-width: 92vw; max-height: 84vh; width: auto; border-radius: 10px; }
.lightbox-close {
  position: absolute; top: 22px; right: 22px; width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255, 255, 255, .08); border: 1px solid var(--line-2); color: #fff;
  font-size: 1.3rem; cursor: pointer;
}
.lightbox-cap { position: absolute; bottom: 24px; left: 0; right: 0; text-align: center; color: var(--muted); font-size: .84rem; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* ---------- about ---------- */
.about-body { padding: 64px 24px 84px; max-width: 860px; }
.about-body > p { color: #c2cad3; font-size: 1.04rem; line-height: 1.8; margin-bottom: 18px; }
.about-body > p strong { color: var(--text); }
.about-body ul { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 32px 0 36px; }
.about-body li {
  position: relative; padding: 16px 18px 16px 44px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--line); font-size: .9rem; color: #c8d0d9;
}
.about-body li::before {
  content: ""; position: absolute; left: 18px; top: 50%; transform: translateY(-50%) rotate(45deg);
  width: 8px; height: 8px; border-radius: 2px; background: var(--red);
}

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; padding: 56px 24px 88px; align-items: start; }
.contact-side h2 { font-size: clamp(1.4rem, 2.4vw, 1.85rem); font-weight: 800; letter-spacing: -.03em; margin-bottom: 10px; }
.contact-side > p { color: var(--muted); margin-bottom: 26px; max-width: 40ch; }
.channels { display: flex; flex-direction: column; gap: 12px; }
.channel {
  display: flex; align-items: center; gap: 14px; padding: 16px 18px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  transition: border-color .2s var(--ease), transform .2s var(--ease), background .2s var(--ease);
}
.channel:hover { border-color: rgba(225, 6, 0, .4); transform: translateY(-2px); background: var(--surface-2); }
.channel-ico {
  width: 42px; height: 42px; flex: 0 0 42px; display: flex; align-items: center; justify-content: center;
  border-radius: 12px; background: rgba(255, 255, 255, .06); font-size: 1.1rem;
}
.channel strong { display: block; font-size: .92rem; font-weight: 600; }
.channel span { font-size: .84rem; color: var(--muted); }

.inquiry {
  background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 30px;
  box-shadow: var(--shadow);
}
.inquiry h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -.02em; margin-bottom: 6px; }
.inquiry > p { color: var(--dim); font-size: .86rem; margin-bottom: 22px; }
.fg { margin-bottom: 16px; }
.fg label { display: block; font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); margin-bottom: 7px; }
.fg input, .fg select, .fg textarea {
  width: 100%; padding: 13px 15px; border-radius: var(--radius-sm);
  background: #0a0d10; border: 1px solid var(--line-2); color: var(--text); font-size: .92rem;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.fg textarea { min-height: 104px; resize: vertical; }
.fg input:focus, .fg select:focus, .fg textarea:focus { outline: none; border-color: rgba(225, 6, 0, .8); background: #0c1013; }
.fg input::placeholder, .fg textarea::placeholder { color: #545c65; }
.form-btns { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.form-btns .btn { flex: 1 1 140px; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: var(--muted); font-size: .88rem; max-width: 34ch; margin-top: 14px; line-height: 1.7; }
.footer-col h4 { font-size: .72rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--dim); margin-bottom: 16px; }
.footer-col a, .footer-col span { display: block; font-size: .9rem; color: var(--muted); padding: 5px 0; transition: color .2s var(--ease); }
.footer-col a:hover { color: var(--text); }
.footer-bot {
  border-top: 1px solid var(--line); padding-top: 22px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: .78rem; color: var(--dim);
}
.footer-slim { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.admin-link { color: rgba(255,255,255,.28); text-decoration: none; font-size: .78rem; transition: color .2s; }
.admin-link:hover { color: var(--red, #e8383f); }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { font-size: .86rem; color: var(--muted); }
.footer-links a:hover { color: var(--text); }

/* ---------- social float ---------- */
.social-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 90;
  display: flex; flex-direction: column; gap: 10px;
}
.sf-btn {
  position: relative; width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; border: 0; padding: 0; cursor: pointer;
  box-shadow: 0 12px 28px -12px rgba(0, 0, 0, .85);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.sf-btn:hover { transform: scale(1.09); }
.sf-btn svg { width: 24px; height: 24px; fill: currentColor; }
.sf-wa { background: #25d366; box-shadow: 0 12px 28px -12px rgba(37, 211, 102, .8); }
.sf-fb { background: #1877f2; box-shadow: 0 12px 28px -12px rgba(24, 119, 242, .8); }
.sf-ig { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); box-shadow: 0 12px 28px -12px rgba(220, 39, 103, .8); }
.sf-wc { background: #07c160; box-shadow: 0 12px 28px -12px rgba(7, 193, 96, .8); }
.sf-qr {
  position: absolute; right: calc(100% + 14px); bottom: -6px; width: 198px;
  background: #fff; border-radius: 14px; padding: 12px 12px 10px;
  box-shadow: 0 24px 54px -14px rgba(0, 0, 0, .6);
  opacity: 0; visibility: hidden; transform: translateX(8px);
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
  pointer-events: none;
}
.sf-qr img { display: block; width: 100%; height: auto; border-radius: 8px; }
.sf-qr-id { display: block; margin-top: 8px; color: #15181c; font-size: .8rem; text-align: center; letter-spacing: .01em; }
.sf-qr-id b { font-weight: 700; }
.sf-wc:hover .sf-qr, .sf-wc:focus-visible .sf-qr, .sf-wc.open .sf-qr {
  opacity: 1; visibility: visible; transform: none; pointer-events: auto;
}

/* ---------- wechat qr card (contact page) ---------- */
.channel-svg svg { width: 20px; height: 20px; fill: #fff; }
.wechat-qr-card {
  margin-top: 4px; padding: 18px; text-align: center;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
}
.wechat-qr-card img { width: 190px; height: auto; border-radius: 10px; display: block; margin: 0 auto; }
.wechat-qr-card span { display: block; margin-top: 10px; font-size: .84rem; color: var(--muted); }
.wechat-qr-card b { color: var(--text); }

/* ---------- reveal on scroll ---------- */
.rise { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.rise.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .prod-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pdetail { grid-template-columns: 1fr; gap: 30px; }
  .pgallery { position: static; }
  .why-strip { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  :root { --hh: 60px; --radius: 14px; }
  .sec { padding: 64px 0; }
  .hero { min-height: 88svh; }
  .hero-copy { padding-bottom: 56px; }
  .hero h1 { max-width: none; }
  .hero-btns .btn { flex: 1 1 100%; }
  .hero-nav { display: none; }
  .hero-slide-cap { display: none; }
  .hero-stats .wrap { grid-template-columns: 1fr 1fr; }
  .stat { padding: 18px 16px; }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line); }
  .menu-toggle { display: flex; }
  .nav {
    position: fixed; inset: var(--hh) 0 auto; display: flex; flex-direction: column; align-items: stretch;
    gap: 4px; padding: 14px 20px 24px;
    background: rgba(7, 8, 10, .98); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%); opacity: 0; pointer-events: none;
    transition: transform .32s var(--ease), opacity .28s var(--ease);
  }
  .nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav a { padding: 14px 12px; font-size: 1rem; border-radius: 10px; }
  .nav a.active::after { display: none; }
  .nav-cta { margin: 8px 0 0 !important; text-align: center; }
  .prod-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .pcard-body { padding: 14px 14px 16px; }
  .pcard-body h3 { font-size: .9rem; }
  .brand-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .why-strip { grid-template-columns: 1fr; }
  .why-item { min-height: 230px; }
  .contact-grid { grid-template-columns: 1fr; padding-top: 40px; }
  .inquiry { padding: 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .cta { padding: 48px 22px; border-radius: 18px; }
  .cta-btns .btn { flex: 1 1 100%; }
  .page-hero { padding: 52px 0 40px; }
  .about-body { padding: 44px 24px 64px; }
  .filters { padding: 16px; gap: 12px; }
  .filter-group { min-width: 0; flex: 1 1 100%; }
  .filter-reset { width: 100%; }
  .parts-table thead { display: none; }
  .parts-table tr { display: grid; grid-template-columns: 60px 1fr; gap: 4px 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
  .parts-table td { border: 0; padding: 0; }
  .part-img-cell { grid-row: span 3; }
  .specs { grid-template-columns: 100px 1fr; }
  .social-float { right: 14px; bottom: 14px; gap: 8px; }
  .sf-btn { width: 44px; height: 44px; }
  .sf-btn svg { width: 22px; height: 22px; }
  .sf-qr { width: 172px; bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .rise { opacity: 1; transform: none; }
}

/* ============ GEO content modules (v20261030-geo1) ============ */
.footer-col .f-h { font-size: .72rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--dim); margin: 0 0 16px; }

/* Answer block — first-paragraph conclusion for AI citability */
.answer-block {
  background: linear-gradient(120deg, rgba(227, 30, 43, .10), rgba(227, 30, 43, .03));
  border: 1px solid rgba(227, 30, 43, .28);
  border-radius: 18px; padding: 30px 34px;
}
.ab-title { font-size: .8rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; color: var(--red, #e31e2b); margin: 0 0 10px; }
.answer-block p { margin: 0; font-size: 1.05rem; line-height: 1.75; color: var(--text); max-width: 62ch; }

/* FRP vs carbon comparison table */
.cmp-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.cmp-table { width: 100%; border-collapse: collapse; min-width: 620px; }
.cmp-table th, .cmp-table td { padding: 14px 18px; text-align: left; font-size: .92rem; border-bottom: 1px solid var(--line); }
.cmp-table thead th { background: var(--surface-2); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); }
.cmp-table tbody th { color: var(--muted); font-weight: 600; white-space: nowrap; }
.cmp-table tbody td { color: var(--text); }
.cmp-table tbody tr:last-child th, .cmp-table tbody tr:last-child td { border-bottom: 0; }

/* FAQ */
.faq-list { display: grid; gap: 12px; max-width: 860px; }
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 18px 22px; font-weight: 650; font-size: .98rem;
  display: flex; justify-content: space-between; align-items: center; gap: 16px; transition: color .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.3rem; color: var(--red, #e31e2b); font-weight: 400; flex: none; }
.faq-item[open] summary::after { content: "–"; }
.faq-item summary:hover { color: var(--red, #e31e2b); }
.faq-item p { margin: 0; padding: 0 22px 20px; color: var(--muted); line-height: 1.7; font-size: .93rem; max-width: 68ch; }

/* Answer block key points */
.ab-points { margin: 16px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 10px; }
.ab-points li { background: rgba(255,255,255,.04); border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; font-size: .88rem; color: var(--muted); line-height: 1.55; }
.ab-points li strong { display: block; color: var(--text); font-size: .95rem; margin-bottom: 2px; }