/* ==================================================================
   Neuron Tech Trading Limited — Design System
   Silicon-Valley style: dark navy hero, white space, electric blue accent
   ================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --ink: #0a0f1c;
  --ink-2: #101b31;
  --ink-3: #182747;
  --blue: #2f6bff;
  --blue-soft: #4f8cff;
  --blue-tint: #eaf1ff;
  --cyan: #22d3ee;
  --teal: #12b981;
  --amber: #f59e0b;

  --text: #0d1526;
  --text-2: #46536e;
  --muted: #6b7893;
  --line: #e4e9f2;
  --line-2: #eef2f8;
  --bg: #ffffff;
  --bg-soft: #f6f8fc;
  --bg-soft-2: #eef3fb;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 26px;

  --shadow-sm: 0 1px 2px rgba(13, 21, 38, .06), 0 1px 3px rgba(13, 21, 38, .04);
  --shadow-md: 0 6px 20px -6px rgba(13, 21, 38, .12), 0 2px 6px rgba(13, 21, 38, .05);
  --shadow-lg: 0 26px 60px -28px rgba(13, 21, 38, .3), 0 8px 24px -12px rgba(13, 21, 38, .12);

  --wrap: 1240px;
  --gutter: 24px;
  --header-h: 74px;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-display: 'Space Grotesk', 'Inter', -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; transition: color .18s ease; }
a:hover { color: #1c50d6; }
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--text); line-height: 1.18; margin: 0 0 .5em; letter-spacing: -.018em; font-weight: 600; }
h1 { font-size: clamp(2.2rem, 4.4vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 2.7vw, 2.35rem); }
h3 { font-size: 1.14rem; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
address { font-style: normal; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }
:focus-visible { outline: 3px solid var(--blue-soft); outline-offset: 2px; border-radius: 4px; }
::selection { background: rgba(47, 107, 255, .18); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.hp { position: absolute !important; left: -9999px; opacity: 0; height: 0; pointer-events: none; }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--ink); color: #fff; padding: 10px 16px; z-index: 200; }
.skip-link:focus { left: 12px; top: 12px; border-radius: var(--r-sm); }
.ico { flex: none; }
.grad-text { background: linear-gradient(100deg, #7fb0ff 0%, var(--cyan) 55%, #a78bfa 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- 3. Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 999px; border: 1px solid transparent;
  font-size: .94rem; font-weight: 600; letter-spacing: -.005em;
  cursor: pointer; transition: all .2s ease; white-space: nowrap; text-align: center;
}
.btn-sm { padding: 8px 15px; font-size: .86rem; gap: 6px; }
.btn-xs { padding: 5px 11px; font-size: .78rem; gap: 5px; }
.btn-lg { padding: 14px 26px; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-primary { background: linear-gradient(135deg, var(--blue) 0%, #1a52d8 100%); color: #fff; box-shadow: 0 6px 18px -8px rgba(47, 107, 255, .7); }
.btn-primary:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 12px 26px -10px rgba(47, 107, 255, .75); }
.btn-outline { border-color: var(--line); background: #fff; color: var(--text); }
.btn-outline:hover { border-color: var(--blue-soft); color: var(--blue); background: var(--blue-tint); }
.btn-ghost { background: var(--bg-soft); color: var(--text-2); }
.btn-ghost:hover { background: var(--bg-soft-2); color: var(--blue); }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { color: var(--blue); transform: translateY(-1px); }
.btn-ghost-light { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.28); }
.btn-ghost-light:hover { background: rgba(255,255,255,.18); color: #fff; }
.btn-outline-light { border-color: rgba(255,255,255,.38); color: #fff; background: rgba(255,255,255,.04); }
.btn-outline-light:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.12); }
.btn-success { background: #12b981; color: #fff; }
.btn-success:hover { color: #fff; background: #0ea472; }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }

/* ---------- 4. Top bar & header ---------- */
.topbar { background: var(--ink); color: rgba(255,255,255,.72); font-size: .8rem; }
.topbar-in { display: flex; align-items: center; gap: 14px; height: 38px; }
.topbar-item { display: inline-flex; align-items: center; gap: 7px; color: inherit; }
a.topbar-item:hover { color: #fff; }
.topbar-sep { width: 1px; height: 14px; background: rgba(255,255,255,.18); }
.topbar-spacer { flex: 1; }

.site-header {
  position: sticky; top: 0; z-index: 90; background: rgba(255,255,255,.88);
  backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--line);
}
.header-in { display: flex; align-items: center; gap: 22px; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-family: var(--font-display); font-size: 1.06rem; color: var(--text); letter-spacing: -.02em; }
.brand-text em { font-style: normal; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.brand-light .brand-text strong { color: #fff; }
.brand-light .brand-text em { color: rgba(255,255,255,.55); }

.main-nav { display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.nav-link { padding: 9px 14px; border-radius: 10px; font-size: .93rem; font-weight: 500; color: var(--text-2); }
.nav-link:hover { color: var(--blue); background: var(--blue-tint); }
.nav-link.is-active { color: var(--blue); background: var(--blue-tint); }
.header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }

.lang-switch { position: relative; }
.lang-switch > summary {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; font-size: .84rem; font-weight: 600;
  color: var(--text-2); cursor: pointer; list-style: none;
}
.lang-switch > summary::-webkit-details-marker { display: none; }
.lang-switch[open] > summary { border-color: var(--blue-soft); color: var(--blue); }
.lang-menu {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 190px; padding: 6px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md);
  box-shadow: var(--shadow-lg); display: grid; gap: 2px; z-index: 60;
}
.lang-item { display: flex; align-items: center; gap: 10px; padding: 9px 11px; border-radius: 8px; color: var(--text-2); font-size: .87rem; }
.lang-item:hover { background: var(--bg-soft); color: var(--blue); }
.lang-item.is-active { background: var(--blue-tint); color: var(--blue); font-weight: 600; }
.lang-code { display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 22px; border-radius: 6px; background: var(--bg-soft-2); font-size: .68rem; font-weight: 700; color: var(--text-2); }
.lang-item.is-active .lang-code { background: var(--blue); color: #fff; }

.cart-btn { position: relative; display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line); background: #fff; color: var(--text-2); }
.cart-btn:hover { color: var(--blue); border-color: var(--blue-soft); }
.cart-count {
  position: absolute; top: -4px; right: -4px; min-width: 19px; height: 19px; padding: 0 5px;
  border-radius: 999px; background: var(--blue); color: #fff; font-size: .68rem; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
}
.menu-btn { display: none; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--line); background: #fff; color: var(--text-2); }
.mobile-nav { display: none; flex-direction: column; gap: 6px; padding: 14px var(--gutter) 20px; border-top: 1px solid var(--line); background: #fff; }
.mobile-nav a { padding: 11px 12px; border-radius: 10px; color: var(--text-2); font-weight: 500; }
.mobile-nav a:hover { background: var(--bg-soft); color: var(--blue); }

/* ---------- 5. Hero ---------- */
.hero { position: relative; background: var(--ink); color: #fff; overflow: hidden; isolation: isolate; }
.hero-bg { position: absolute; inset: 0; z-index: -1; }
.orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; }
.orb-a { width: 620px; height: 620px; background: radial-gradient(circle, rgba(47,107,255,.85), transparent 68%); top: -240px; left: -140px; }
.orb-b { width: 520px; height: 520px; background: radial-gradient(circle, rgba(34,211,238,.6), transparent 68%); bottom: -220px; right: -120px; }
.grid-lines {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 20%, transparent 78%);
}
.hero-in { display: grid; grid-template-columns: 1.06fr .94fr; gap: 56px; align-items: center; padding: 84px 0 92px; }
.pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 15px; border-radius: 999px;
  background: rgba(79,140,255,.14); border: 1px solid rgba(79,140,255,.36);
  color: #a9c8ff; font-size: .8rem; font-weight: 500; letter-spacing: .01em; margin-bottom: 22px;
}
.hero h1 { color: #fff; font-size: clamp(2.3rem, 4.6vw, 3.75rem); margin-bottom: 20px; }
.hero-p { font-size: 1.06rem; color: rgba(255,255,255,.74); max-width: 56ch; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.hero-note { display: inline-flex; align-items: center; gap: 8px; font-size: .86rem; color: rgba(255,255,255,.6); margin-bottom: 34px; }
.hero-note .ico { color: var(--cyan); }
.hero-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.12); }
.hero-stat strong { display: block; font-family: var(--font-display); font-size: 1.6rem; color: #fff; letter-spacing: -.02em; }
.hero-stat span { font-size: .78rem; color: rgba(255,255,255,.55); }
.hero-visual { position: relative; }
.hero-visual svg { width: 100%; height: auto; }
.hv-led { animation: pulse 2.6s ease-in-out infinite; }
.hv-sled { animation: float 5.5s ease-in-out infinite; animation-delay: var(--d, 0s); }
.hv-flow { stroke-dasharray: 12 10; animation: dash 2.4s linear infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
@keyframes float { 0%, 100% { transform: translateX(0); } 50% { transform: translateX(3px); } }
@keyframes dash { to { stroke-dashoffset: -44; } }

/* ---------- 6. Trust strip ---------- */
.trust-strip { background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.trust-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 22px 0; }
.trust-item { display: flex; align-items: center; gap: 10px; font-size: .89rem; font-weight: 500; color: var(--text-2); }
.trust-item .ico { color: var(--blue); }

/* ---------- 7. Sections ---------- */
.section { padding: 88px 0; }
.section-cats { background: #fff; }
.section-featured { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { max-width: 780px; margin-bottom: 46px; }
.kicker { display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: var(--blue); margin-bottom: 14px; }
.sec-sub { font-size: 1.03rem; color: var(--text-2); margin: 0; }
.sec-foot { margin-top: 40px; text-align: center; }

/* ---------- 8. Category cards ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.cat-card {
  position: relative; padding: 0 0 26px; border: 1px solid var(--line); border-radius: var(--r-lg);
  background: #fff; overflow: hidden; color: inherit; transition: all .24s ease; display: flex; flex-direction: column;
}
.cat-card:hover { transform: translateY(-4px); border-color: #c9dbff; box-shadow: var(--shadow-lg); color: inherit; }
.cat-media { background: var(--bg-soft-2); border-bottom: 1px solid var(--line); }
.cat-media img { width: 100%; height: 168px; object-fit: cover; }
.cat-icon {
  display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px;
  margin: -22px 0 16px 26px; border-radius: 12px; background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff; box-shadow: 0 8px 18px -8px rgba(47,107,255,.8);
}
.cat-card h3 { margin: 0 26px 8px; font-size: 1.08rem; }
.cat-card p { margin: 0 26px 16px; font-size: .9rem; color: var(--text-2); }
.cat-more { margin: auto 26px 0; display: inline-flex; align-items: center; gap: 7px; font-size: .86rem; font-weight: 600; color: var(--blue); }

/* ---------- 9. Product cards ---------- */
.p-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.p-card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-lg); overflow: hidden; transition: all .24s ease;
}
.p-card:hover { transform: translateY(-4px); border-color: #c9dbff; box-shadow: var(--shadow-lg); }
.p-media { position: relative; display: block; background: var(--bg-soft-2); border-bottom: 1px solid var(--line); }
.p-media img { width: 100%; height: 190px; object-fit: cover; transition: transform .4s ease; }
.p-card:hover .p-media img { transform: scale(1.03); }
.chip {
  position: absolute; top: 12px; left: 12px; padding: 4px 10px; border-radius: 999px;
  font-size: .7rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
}
.chip-new { background: var(--cyan); color: #06202a; }
.chip-hot { background: var(--amber); color: #2b1a00; }
.p-body { padding: 20px 22px 8px; flex: 1; }
.p-cat { display: block; font-size: .74rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--blue); margin-bottom: 9px; }
.p-title { font-size: 1.03rem; margin: 0 0 9px; }
.p-title a { color: var(--text); }
.p-title a:hover { color: var(--blue); }
.p-tag { font-size: .86rem; color: var(--muted); margin: 0 0 16px; }
.p-meta { display: flex; gap: 22px; margin: 0; }
.p-meta dt { font-size: .72rem; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); margin-bottom: 2px; }
.p-meta dd { margin: 0; font-size: .86rem; font-weight: 600; color: var(--text-2); }
.p-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding: 16px 22px 20px; margin-top: 14px; border-top: 1px solid var(--line-2);
}
.p-price small { display: block; font-size: .7rem; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); }
.p-price strong { font-family: var(--font-display); font-size: 1.28rem; color: var(--text); letter-spacing: -.02em; }
.p-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- 10. Why grid ---------- */
.section-why { background: var(--ink); color: #fff; }
.section-why h2 { color: #fff; }
.section-why .sec-sub { color: rgba(255,255,255,.65); }
.section-why .kicker { color: var(--cyan); }
.why-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; }
.why-card { position: relative; padding: 30px 26px; border-radius: var(--r-lg); background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.1); transition: all .24s ease; }
.why-card:hover { background: rgba(79,140,255,.1); border-color: rgba(79,140,255,.4); transform: translateY(-3px); }
.why-num { font-family: var(--font-display); font-size: .82rem; font-weight: 700; color: var(--cyan); letter-spacing: .1em; }
.why-card h3 { margin: 14px 0 10px; font-size: 1.08rem; color: #fff; }
.why-card p { margin: 0; font-size: .92rem; color: rgba(255,255,255,.68); }

/* ---------- 11. Process ---------- */
.section-proc { background: #fff; }
.proc-list { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 22px; counter-reset: s; }
.proc-step { position: relative; padding: 30px 24px 26px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg-soft); }
.proc-step::after {
  content: ''; position: absolute; top: 44px; right: -14px; width: 28px; height: 2px;
  background: linear-gradient(90deg, var(--blue-soft), transparent);
}
.proc-step:last-child::after { display: none; }
.proc-idx {
  display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px;
  border-radius: 10px; background: var(--blue); color: #fff; font-weight: 700; font-size: .92rem;
}
.proc-step h3 { margin: 16px 0 8px; font-size: 1.02rem; }
.proc-step p { margin: 0; font-size: .89rem; color: var(--text-2); }

/* ---------- 12. Global coverage ---------- */
.section-global { background: var(--bg-soft); border-top: 1px solid var(--line); }
.global-wrap { display: grid; grid-template-columns: 1fr 1.05fr; gap: 54px; align-items: center; }
.global-copy .sec-head { margin-bottom: 26px; }
.global-cards { display: grid; gap: 16px; }
.global-card { display: grid; grid-template-columns: 46px 1fr; gap: 16px; padding: 22px 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); }
.global-ico { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 12px; background: var(--blue-tint); color: var(--blue); }
.global-card h3 { margin: 2px 0 6px; font-size: 1rem; }
.global-card p { margin: 0; font-size: .89rem; color: var(--text-2); }

/* ---------- 13. FAQ ---------- */
.section-faq { background: #fff; }
.faq-list { max-width: 880px; display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--r-md); background: #fff; overflow: hidden; }
.faq-item[open] { border-color: #c9dbff; box-shadow: var(--shadow-sm); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 18px 22px; font-weight: 600; font-size: .98rem; cursor: pointer; list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon { color: var(--blue); transition: transform .22s ease; flex: none; }
.faq-item[open] .faq-icon { transform: rotate(45deg); }
.faq-a { padding: 0 22px 20px; }
.faq-a p { margin: 0; color: var(--text-2); font-size: .92rem; }

/* ---------- 14. CTA band ---------- */
.cta-band { background: linear-gradient(120deg, var(--ink) 0%, var(--ink-3) 55%, #1d3a72 100%); color: #fff; padding: 66px 0; }
.cta-in { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-in h2 { color: #fff; margin-bottom: 10px; }
.cta-in p { margin: 0; color: rgba(255,255,255,.72); max-width: 62ch; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 15. Page head & breadcrumbs ---------- */
.page-head { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 34px 0 46px; }
.page-head-compact { padding: 26px 0 30px; }
.page-head h1 { margin-bottom: 14px; }
.page-lead { font-size: 1.04rem; color: var(--text-2); max-width: 76ch; margin: 0; }
.crumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: .82rem; color: var(--muted); margin-bottom: 18px; }
.crumbs li::after { content: '/'; margin-left: 8px; color: #c3ccdb; }
.crumbs li:last-child::after { display: none; }
.crumbs a { color: var(--text-2); }
.crumbs a:hover { color: var(--blue); }

/* ---------- 16. Catalog ---------- */
.catalog-toolbar { display: flex; gap: 14px; align-items: center; margin-bottom: 20px; flex-wrap: wrap; }
.catalog-search { position: relative; flex: 1; min-width: 260px; display: flex; align-items: center; }
.catalog-search .ico { position: absolute; left: 15px; color: var(--muted); }
.catalog-search input {
  width: 100%; padding: 13px 16px 13px 44px; border: 1px solid var(--line); border-radius: 999px;
  background: #fff; font-size: .93rem; transition: border-color .2s ease, box-shadow .2s ease;
}
.catalog-search input:focus { outline: none; border-color: var(--blue-soft); box-shadow: 0 0 0 4px rgba(79,140,255,.14); }
.catalog-sort select {
  padding: 13px 40px 13px 16px; border: 1px solid var(--line); border-radius: 999px; background: #fff;
  font-size: .9rem; color: var(--text-2); appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236b7893' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center;
}
.chip-row { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 18px; }
.chip-filter {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; font-size: .86rem; font-weight: 500; color: var(--text-2);
  transition: all .18s ease;
}
.chip-filter:hover { border-color: var(--blue-soft); color: var(--blue); }
.chip-filter.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.catalog-count { font-size: .84rem; color: var(--muted); margin: 0 0 20px; }
.catalog-empty { text-align: center; padding: 60px 20px; border: 1px dashed var(--line); border-radius: var(--r-lg); background: var(--bg-soft); }
.catalog-empty p { color: var(--text-2); }
.p-card.is-hidden { display: none; }

/* ---------- 17. Product detail ---------- */
.pd-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 54px; align-items: start; }
.pd-media-inner { position: relative; border: 1px solid var(--line); border-radius: var(--r-xl); overflow: hidden; background: var(--bg-soft-2); }
.pd-media-inner img { width: 100%; height: auto; }
.pd-media-note { display: flex; gap: 8px; margin-top: 14px; font-size: .82rem; color: var(--muted); }
.pd-info h1 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin: 10px 0 12px; }
.pd-tagline { font-size: 1.02rem; color: var(--text-2); margin-bottom: 22px; }
.pd-price { display: flex; align-items: baseline; gap: 10px; padding: 18px 22px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--r-md); margin-bottom: 22px; }
.pd-price small { font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.pd-price strong { font-family: var(--font-display); font-size: 2rem; letter-spacing: -.025em; }
.pd-price span { font-size: .82rem; color: var(--muted); }
.fact-row { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; margin: 0 0 26px; }
.fact { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--r-md); background: #fff; }
.fact-ico { color: var(--blue); margin-top: 2px; }
.fact dt { font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 3px; }
.fact dd { margin: 0; font-size: .88rem; font-weight: 600; color: var(--text); }
.pd-buy { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 18px; }
.qty-stepper { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: #fff; }
.qty-stepper button { width: 42px; height: 46px; border: 0; background: #fff; color: var(--text-2); display: inline-flex; align-items: center; justify-content: center; }
.qty-stepper button:hover { background: var(--blue-tint); color: var(--blue); }
.qty-stepper input { width: 62px; height: 46px; border: 0; text-align: center; font-weight: 600; -moz-appearance: textfield; }
.qty-stepper input::-webkit-outer-spin-button, .qty-stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.pd-inq { display: flex; gap: 8px; align-items: center; font-size: .87rem; color: var(--muted); }
.pd-two { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; }
.pd-block h2 { font-size: 1.3rem; margin-bottom: 16px; }
.pd-desc { color: var(--text-2); }
.spec-table { width: 100%; border-collapse: collapse; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.spec-table th, .spec-table td { padding: 13px 16px; font-size: .88rem; text-align: left; border-bottom: 1px solid var(--line-2); vertical-align: top; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table th { width: 42%; background: var(--bg-soft); font-weight: 600; color: var(--text-2); font-size: .84rem; }
.spec-table tr:hover td { background: #fbfcfe; }
.section-related { background: var(--bg-soft); border-top: 1px solid var(--line); }

/* ---------- 18. Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 34px; align-items: start; }
.card-surface { background: #fff; border: 1px solid var(--line); border-radius: var(--r-xl); padding: 30px; box-shadow: var(--shadow-sm); }
.contact-form h2 { font-size: 1.35rem; margin-bottom: 22px; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.field-row-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 16px; }
.field > span { font-size: .82rem; font-weight: 600; color: var(--text-2); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--r-sm);
  background: #fff; font-size: .93rem; color: var(--text); transition: border-color .18s ease, box-shadow .18s ease;
}
.field textarea { resize: vertical; min-height: 92px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue-soft); box-shadow: 0 0 0 4px rgba(79,140,255,.13); }
.field input:invalid:not(:placeholder-shown) { border-color: #ef6b6b; }
.form-foot { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 6px; }
.form-note { display: inline-flex; align-items: center; gap: 7px; font-size: .82rem; color: var(--muted); margin: 0; }
.form-msg { margin: 14px 0 0; font-size: .89rem; font-weight: 500; }
.form-msg.is-ok { color: var(--teal); }
.form-msg.is-err { color: #d64545; }
.contact-side { display: grid; gap: 20px; }
.side-card { border: 1px solid var(--line); border-radius: var(--r-lg); padding: 24px; background: #fff; }
.side-card h3 { font-size: 1rem; margin-bottom: 16px; }
.side-list { display: grid; gap: 16px; }
.side-list li { display: flex; gap: 12px; align-items: flex-start; font-size: .89rem; }
.side-list .ico { color: var(--blue); margin-top: 3px; }
.side-list span { display: block; font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 2px; }
.side-list a, .side-list strong, .side-list address { color: var(--text); font-weight: 500; }
.side-card-cta { background: linear-gradient(150deg, var(--ink) 0%, var(--ink-3) 100%); border-color: transparent; color: #fff; }
.side-card-cta h3 { color: #fff; }
.side-card-cta p { color: rgba(255,255,255,.7); font-size: .89rem; }
.side-card-cta .btn + .btn { margin-top: 10px; }
.side-card-note { background: var(--bg-soft); }
.side-note { font-size: .82rem; color: var(--muted); margin: 14px 0 0; }
.pay-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.pay-badge { padding: 6px 12px; border-radius: 8px; border: 1px solid var(--line); background: #fff; font-size: .78rem; font-weight: 600; color: var(--text-2); }

/* ---------- 19. Cart ---------- */
.cart-grid { display: grid; grid-template-columns: 1fr 380px; gap: 30px; align-items: start; }
.cart-table { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: #fff; }
.cart-head-row, .cart-row { display: grid; grid-template-columns: 2.4fr 1fr 1.1fr 1fr 46px; gap: 14px; align-items: center; padding: 16px 20px; }
.cart-head-row { background: var(--bg-soft); font-size: .76rem; text-transform: uppercase; letter-spacing: .07em; color: var(--muted); font-weight: 600; border-bottom: 1px solid var(--line); }
.cart-row { border-bottom: 1px solid var(--line-2); }
.cart-row:last-child { border-bottom: 0; }
.cart-prod { display: flex; gap: 14px; align-items: center; }
.cart-prod img { width: 62px; height: 52px; object-fit: cover; border-radius: var(--r-sm); border: 1px solid var(--line); background: var(--bg-soft-2); }
.cart-prod strong { display: block; font-size: .92rem; }
.cart-prod span { font-size: .78rem; color: var(--muted); }
.cart-row .qty-mini { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; width: fit-content; }
.cart-row .qty-mini button { width: 30px; height: 34px; border: 0; background: #fff; color: var(--text-2); }
.cart-row .qty-mini button:hover { background: var(--blue-tint); color: var(--blue); }
.cart-row .qty-mini input { width: 44px; height: 34px; border: 0; text-align: center; font-size: .88rem; font-weight: 600; }
.cart-line-total { font-weight: 700; font-family: var(--font-display); }
.row-remove { width: 34px; height: 34px; border: 0; border-radius: 8px; background: transparent; color: var(--muted); display: inline-flex; align-items: center; justify-content: center; }
.row-remove:hover { background: #fff0f0; color: #d64545; }
.cart-empty { text-align: center; padding: 60px 30px; display: grid; gap: 14px; justify-items: center; }
.cart-empty .ico { color: var(--muted); }
.cart-empty p { margin: 0; color: var(--text-2); }
.cart-side { position: sticky; top: calc(var(--header-h) + 18px); }
.cart-side h2, .checkout-side h2 { font-size: 1.1rem; margin-bottom: 18px; }
.sum-list { display: grid; gap: 12px; margin: 0 0 20px; }
.sum-list > div { display: flex; justify-content: space-between; gap: 14px; font-size: .92rem; color: var(--text-2); }
.sum-list dt, .sum-list dd { margin: 0; }
.sum-total { padding-top: 14px; border-top: 1px solid var(--line); font-weight: 700; color: var(--text) !important; }
.sum-total dd { font-family: var(--font-display); font-size: 1.4rem; }
.cart-side .btn + .btn { margin-top: 10px; }
.cart-note { display: flex; gap: 8px; margin: 18px 0 0; font-size: .8rem; color: var(--muted); }

/* ---------- 20. Checkout ---------- */
.checkout-grid { display: grid; grid-template-columns: 1fr 380px; gap: 34px; align-items: start; }
.checkout-form { display: grid; gap: 26px; }
.step { border: 1px solid var(--line); border-radius: var(--r-lg); padding: 26px; background: #fff; margin: 0; }
.step legend { display: flex; align-items: center; gap: 12px; font-family: var(--font-display); font-size: 1.06rem; font-weight: 600; padding: 0 8px; }
.step-idx { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 9px; background: var(--blue); color: #fff; font-size: .84rem; }
.pay-options { display: grid; gap: 12px; margin-bottom: 18px; }
.pay-option { position: relative; cursor: pointer; }
.pay-option input { position: absolute; opacity: 0; pointer-events: none; }
.pay-option-body {
  display: grid; grid-template-columns: 44px 1fr 22px; gap: 14px; align-items: center;
  padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--r-md); background: #fff; transition: all .18s ease;
}
.pay-option:hover .pay-option-body { border-color: var(--blue-soft); }
.pay-option input:checked + .pay-option-body { border-color: var(--blue); background: var(--blue-tint); box-shadow: 0 0 0 3px rgba(47,107,255,.1); }
.pay-option input:focus-visible + .pay-option-body { outline: 3px solid var(--blue-soft); outline-offset: 2px; }
.pay-option-ico { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 12px; background: var(--bg-soft); color: var(--blue); }
.pay-option input:checked + .pay-option-body .pay-option-ico { background: #fff; }
.pay-option-text strong { display: block; font-size: .96rem; }
.pay-option-text em { font-style: normal; font-size: .83rem; color: var(--text-2); }
.pay-radio { width: 20px; height: 20px; border-radius: 50%; border: 2px solid #c6d0e0; position: relative; }
.pay-option input:checked + .pay-option-body .pay-radio { border-color: var(--blue); }
.pay-option input:checked + .pay-option-body .pay-radio::after { content: ''; position: absolute; inset: 3px; border-radius: 50%; background: var(--blue); }
.pay-panel { padding: 20px; border: 1px dashed var(--line); border-radius: var(--r-md); background: var(--bg-soft); }
.pay-panel h3 { font-size: 1rem; margin-bottom: 10px; }
.pay-panel p { font-size: .88rem; color: var(--text-2); }
.pay-hint { font-size: .85rem !important; color: var(--amber) !important; background: #fffaeb; border: 1px solid #ffe2a8; border-radius: var(--r-sm); padding: 12px 14px; margin: 0 0 14px; }
.paypal-slot { min-height: 20px; }
.usdt-box { display: grid; gap: 12px; margin: 16px 0; }
.usdt-box > div { display: grid; gap: 4px; }
.usdt-box dt { font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.usdt-box dd { margin: 0; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.usdt-box code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .84rem; background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 7px 11px; word-break: break-all; }
.usdt-qr { margin: 16px 0; }
.usdt-qr img, .usdt-qr canvas { border: 8px solid #fff; border-radius: var(--r-sm); box-shadow: var(--shadow-sm); }
.checkline { display: flex; gap: 10px; align-items: flex-start; font-size: .89rem; color: var(--text-2); margin-bottom: 18px; }
.checkline input { margin-top: 3px; width: 17px; height: 17px; accent-color: var(--blue); }
.checkout-side { position: sticky; top: calc(var(--header-h) + 18px); }
.mini-cart { display: grid; gap: 12px; margin-bottom: 20px; max-height: 320px; overflow-y: auto; }
.mini-row { display: grid; grid-template-columns: 46px 1fr auto; gap: 12px; align-items: center; font-size: .86rem; }
.mini-row img { width: 46px; height: 40px; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); background: var(--bg-soft-2); }
.mini-row strong { display: block; font-weight: 600; font-size: .86rem; line-height: 1.35; }
.mini-row span { color: var(--muted); font-size: .78rem; }
.trust-mini { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.trust-mini span { display: inline-flex; align-items: center; gap: 6px; font-size: .78rem; color: var(--muted); }
.success-card { max-width: 720px; margin: 0 auto; text-align: center; padding: 54px 34px; border: 1px solid var(--line); border-radius: var(--r-xl); background: #fff; box-shadow: var(--shadow-md); }
.success-ico { display: inline-flex; align-items: center; justify-content: center; width: 62px; height: 62px; border-radius: 50%; background: #e8f8f2; color: var(--teal); margin-bottom: 18px; }
.order-ref { display: inline-grid; gap: 4px; padding: 16px 26px; border-radius: var(--r-md); background: var(--bg-soft); border: 1px dashed var(--line); margin: 10px 0 18px; }
.order-ref span { font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.order-ref strong { font-family: var(--font-display); font-size: 1.35rem; letter-spacing: .02em; }
.success-note { font-size: .87rem; color: var(--muted); }
.success-usdt { text-align: left; margin: 26px 0; padding: 24px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg-soft); }
.success-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- 21. About ---------- */
.story-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 46px; align-items: start; }
.story-block { margin-bottom: 30px; }
.story-block h2 { font-size: 1.35rem; }
.story-block p { color: var(--text-2); }
.stat-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; margin-bottom: 20px; }
.stat-card { padding: 20px; border: 1px solid var(--line); border-radius: var(--r-md); background: #fff; text-align: center; }
.stat-card strong { display: block; font-family: var(--font-display); font-size: 1.65rem; letter-spacing: -.02em; color: var(--blue); }
.stat-card span { font-size: .78rem; color: var(--muted); }
.aside-box { padding: 22px 24px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg-soft); margin-bottom: 18px; }
.aside-box h3 { font-size: .98rem; margin-bottom: 10px; }
.aside-box p, .aside-box address { font-size: .87rem; color: var(--text-2); margin: 0 0 14px; }
.aside-box-solid { background: var(--ink); color: #fff; border-color: transparent; }
.aside-box-solid h3 { color: #fff; }
.aside-box-solid address { color: rgba(255,255,255,.72); }
.aside-box-solid .btn { border-color: rgba(255,255,255,.3); background: transparent; color: #fff; }
.aside-box-solid .btn:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; }
.section-values { background: var(--bg-soft); border-top: 1px solid var(--line); }
.value-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 20px; }
.value-card { padding: 26px 22px; border: 1px solid var(--line); border-radius: var(--r-lg); background: #fff; }
.value-ico { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 12px; background: var(--blue-tint); color: var(--blue); margin-bottom: 14px; }
.value-card h3 { font-size: 1rem; margin-bottom: 8px; }
.value-card p { margin: 0; font-size: .88rem; color: var(--text-2); }

/* ---------- 22. Legal ---------- */
.section-legal { background: #fff; }
.legal-wrap { display: grid; grid-template-columns: 1fr 280px; gap: 46px; align-items: start; }
.legal-body { max-width: 76ch; }
.legal-body h2 { font-size: 1.16rem; margin: 30px 0 10px; }
.legal-body h2:first-child { margin-top: 0; }
.legal-body p { color: var(--text-2); font-size: .95rem; }
.legal-updated { display: inline-flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--muted); }
.legal-foot { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.legal-foot p { font-size: .85rem; color: var(--muted); margin: 0; }
.legal-nav { position: sticky; top: calc(var(--header-h) + 18px); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 20px; background: var(--bg-soft); }
.legal-nav ul { display: grid; gap: 8px; }
.legal-nav a { display: block; padding: 9px 12px; border-radius: 8px; font-size: .87rem; color: var(--text-2); }
.legal-nav a:hover { background: #fff; color: var(--blue); }

/* ---------- 23. Footer ---------- */
.site-footer { background: var(--ink); color: rgba(255,255,255,.72); padding: 66px 0 26px; font-size: .89rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr .85fr .85fr 1.1fr 1.15fr; gap: 34px; padding-bottom: 42px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-col h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: #fff; margin-bottom: 16px; font-family: var(--font); font-weight: 600; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { color: rgba(255,255,255,.66); }
.footer-col a:hover { color: #fff; }
.footer-about { margin: 18px 0 20px; font-size: .87rem; color: rgba(255,255,255,.6); max-width: 40ch; }
.pay-label { display: block; font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: rgba(255,255,255,.5); margin-bottom: 9px; }
.site-footer .pay-badge { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.14); color: rgba(255,255,255,.8); }
.contact-list { display: grid; gap: 14px; }
.contact-list li { display: flex; gap: 10px; align-items: flex-start; }
.contact-list .ico { color: var(--cyan); margin-top: 3px; }
.footer-news p { color: rgba(255,255,255,.6); font-size: .85rem; }
.news-form { display: flex; gap: 8px; flex-wrap: wrap; }
.news-form input { flex: 1; min-width: 150px; padding: 10px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.06); color: #fff; font-size: .87rem; }
.news-form input::placeholder { color: rgba(255,255,255,.4); }
.news-form input:focus { outline: none; border-color: var(--blue-soft); background: rgba(255,255,255,.1); }
.news-msg { margin: 10px 0 0; font-size: .8rem; min-height: 18px; }
.news-msg.is-ok { color: #6ee7b7; }
.news-msg.is-err { color: #fca5a5; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding-top: 24px; flex-wrap: wrap; }
.footer-bottom p { margin: 0; font-size: .83rem; color: rgba(255,255,255,.5); }
.footer-legal { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-legal a { color: rgba(255,255,255,.6); font-size: .83rem; }
.footer-legal a:hover { color: #fff; }
.to-top {
  position: fixed; right: 24px; bottom: 96px; z-index: 70; width: 44px; height: 44px; border-radius: 50%;
  background: #fff; border: 1px solid var(--line); color: var(--text-2); display: inline-flex;
  align-items: center; justify-content: center; box-shadow: var(--shadow-md); opacity: 0; pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
.to-top.is-visible { opacity: 1; pointer-events: auto; }
.to-top:hover { color: var(--blue); transform: translateY(-2px); }
.to-top-ico { transform: rotate(-90deg); }

/* ---------- 24. Chat widget ---------- */
.chat-root { position: fixed; right: 24px; bottom: 24px; z-index: 100; }
.chat-fab {
  position: relative; width: 58px; height: 58px; border-radius: 50%; border: 0; color: #fff;
  background: linear-gradient(135deg, var(--blue) 0%, #1a52d8 100%);
  box-shadow: 0 14px 30px -12px rgba(47,107,255,.85); display: inline-flex; align-items: center; justify-content: center;
  transition: transform .2s ease;
}
.chat-fab:hover { transform: scale(1.05); }
.chat-fab-dot { position: absolute; top: 8px; right: 8px; width: 11px; height: 11px; border-radius: 50%; background: #34d399; border: 2px solid #fff; }
.chat-panel {
  position: absolute; right: 0; bottom: 74px; width: 372px; max-width: calc(100vw - 32px);
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-xl); box-shadow: var(--shadow-lg);
  overflow: hidden; display: flex; flex-direction: column;
}
.chat-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 18px; background: linear-gradient(120deg, var(--ink) 0%, var(--ink-3) 100%); color: #fff; }
.chat-head-info { display: flex; align-items: center; gap: 12px; }
.chat-head-info strong { display: block; font-size: .95rem; color: #fff; }
.chat-avatar { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,.14); color: var(--cyan); }
.chat-status { display: inline-flex; align-items: center; gap: 6px; font-size: .76rem; color: rgba(255,255,255,.7); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: #34d399; display: inline-block; }
.chat-close { border: 0; background: transparent; color: rgba(255,255,255,.7); display: inline-flex; padding: 4px; border-radius: 6px; }
.chat-close:hover { background: rgba(255,255,255,.14); color: #fff; }
.chat-body { padding: 16px 18px 6px; max-height: 320px; overflow-y: auto; }
.chat-msg { padding: 11px 14px; border-radius: 14px 14px 14px 4px; background: var(--bg-soft); font-size: .88rem; color: var(--text-2); margin-bottom: 12px; }
.chat-msg.user { background: var(--blue); color: #fff; border-radius: 14px 14px 4px 14px; margin-left: auto; max-width: 86%; }
.chat-quick { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 12px; }
.chat-quick button { padding: 7px 12px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: .79rem; color: var(--text-2); }
.chat-quick button:hover { border-color: var(--blue-soft); color: var(--blue); }
.chat-log { display: grid; gap: 8px; }
.chat-form { padding: 12px 18px 16px; border-top: 1px solid var(--line-2); background: #fff; }
.chat-fields { display: grid; gap: 8px; }
.chat-fields input, .chat-fields textarea {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: var(--r-sm); font-size: .88rem; resize: vertical;
}
.chat-fields input:focus, .chat-fields textarea:focus { outline: none; border-color: var(--blue-soft); box-shadow: 0 0 0 3px rgba(79,140,255,.13); }
.chat-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 10px; flex-wrap: wrap; }
.chat-alt { display: flex; gap: 12px; }
.chat-alt-link { display: inline-flex; align-items: center; gap: 5px; font-size: .78rem; color: var(--muted); }
.chat-alt-link:hover { color: var(--blue); }
.chat-note { margin: 10px 0 0; font-size: .72rem; color: var(--muted); line-height: 1.5; }

/* ---------- 25. 404 ---------- */
.notfound { text-align: center; padding: 120px 24px; }
.notfound h1 { margin-bottom: 12px; }
.nf-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }

/* ---------- 26. Responsive ---------- */
@media (max-width: 1120px) {
  .hero-in { grid-template-columns: 1fr; gap: 44px; padding: 64px 0 74px; }
  .hero-visual { max-width: 520px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand, .footer-news { grid-column: span 3; }
  .cat-grid, .p-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .why-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .proc-list { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .proc-step::after { display: none; }
  .value-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .pd-grid { grid-template-columns: 1fr; gap: 34px; }
  .contact-grid, .cart-grid, .checkout-grid, .story-grid, .legal-wrap, .global-wrap, .pd-two { grid-template-columns: 1fr; }
  .cart-side, .checkout-side, .legal-nav { position: static; }
}
@media (max-width: 880px) {
  :root { --gutter: 18px; --header-h: 64px; }
  .main-nav { display: none; }
  .menu-btn { display: inline-flex; }
  .header-cta { display: none; }
  .topbar-hide-sm { display: none; }
  .mobile-nav:not([hidden]) { display: flex; }
  .section { padding: 62px 0; }
  .hero-stats { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .trust-in { grid-template-columns: repeat(2, 1fr); }
  .cta-in { flex-direction: column; align-items: flex-start; }
  .chat-panel { width: calc(100vw - 36px); }
}
@media (max-width: 680px) {
  body { font-size: 15.5px; }
  .cat-grid, .p-grid, .why-grid, .proc-list, .value-grid, .field-row, .field-row-3, .fact-row, .stat-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand, .footer-news { grid-column: auto; }
  .cart-head-row { display: none; }
  .cart-row { grid-template-columns: 1fr; gap: 10px; padding: 18px; }
  .cart-row > div:nth-child(2)::before { content: attr(data-label) ' '; font-size: .76rem; color: var(--muted); }
  .hero-stats { gap: 14px; }
  .hero-actions .btn { flex: 1; }
  .legal-foot { flex-direction: column; align-items: flex-start; }
  .to-top { bottom: 88px; right: 16px; }
  .chat-root { right: 16px; bottom: 16px; }
  .card-surface { padding: 22px; }
  .step { padding: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

@media print {
  .site-header, .topbar, .chat-root, .to-top, .cta-band, .site-footer { display: none; }
}

/* ---------------------------------------------------------------- *
 * 动态版：可配置主视觉背景图 + 宣传横幅（后台「网站设置」上传）
 * ---------------------------------------------------------------- */
.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
  z-index: -1;
}
.promo-band { padding: 0 0 8px; }
.promo-band .wrap { max-width: 1200px; }
.promo-band img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 18px;
  box-shadow: 0 24px 60px -30px rgba(10, 15, 28, 0.45);
}
.promo-band a { display: block; }