/* ==========================================================================
   SinoBridge — B2B sourcing platform
   设计语言：深松绿 (deep pine) + 铜金 (brass) + 米白纸感
   ========================================================================== */

:root {
  --ink: #12201f;
  --ink-2: #2b3c3b;
  --ink-3: #5a6b69;
  --ink-4: #8a9a97;
  --paper: #fbfaf7;
  --paper-2: #f4f2ec;
  --line: #e3e0d6;
  --line-2: #d3cfc2;
  --pine: #0f3d3e;
  --pine-2: #14524f;
  --pine-3: #1f7a6f;
  --brass: #b98a3e;
  --brass-2: #d9a75a;
  --ok: #2f7d5b;
  --warn: #b4762a;
  --err: #a83f38;
  --white: #fff;

  --r-sm: 8px;
  --r: 14px;
  --r-lg: 22px;
  --sh-sm: 0 1px 2px rgba(18, 32, 31, .06), 0 2px 8px rgba(18, 32, 31, .04);
  --sh: 0 2px 4px rgba(18, 32, 31, .05), 0 12px 28px rgba(18, 32, 31, .08);
  --sh-lg: 0 8px 20px rgba(18, 32, 31, .08), 0 32px 64px rgba(18, 32, 31, .12);

  --ff: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ff-d: "Fraunces", Georgia, "Times New Roman", serif;
  --wrap: 1240px;
  --gut: 32px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--ff);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-2);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; height: auto; }
a { color: var(--pine-3); text-decoration: none; }
a:hover { color: var(--pine); }
h1, h2, h3, h4 { color: var(--ink); font-weight: 600; line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.015em; }
h1 { font-family: var(--ff-d); font-weight: 500; font-size: clamp(2rem, 1.4rem + 2.4vw, 3.4rem); letter-spacing: -.02em; }
h2 { font-family: var(--ff-d); font-weight: 500; font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.2rem); }
h3 { font-size: 1.08rem; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
li { list-style: none; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 2px; border-radius: 4px; }

.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;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 999; background: var(--pine); color: #fff;
  padding: 10px 18px; border-radius: 0 0 10px 10px; transition: top .2s;
}
.skip-link:focus { top: 0; color: #fff; }

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

/* ---------------------------------------------------------------- Buttons */
.btn {
  --bg: var(--pine); --fg: #fff; --bd: var(--pine);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; border: 1px solid var(--bd);
  background: var(--bg); color: var(--fg); font-weight: 550; font-size: .95rem;
  letter-spacing: .01em; cursor: pointer; transition: transform .15s, box-shadow .2s, background .2s, color .2s;
  white-space: nowrap; text-align: center;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(15, 61, 62, .18); color: var(--fg); }
.btn:active { transform: translateY(0); }
.btn-primary { --bg: var(--pine); --fg: #fff; }
.btn-primary:hover { --bg: var(--pine-2); }
.btn-ghost { --bg: transparent; --fg: var(--pine); --bd: var(--line-2); }
.btn-ghost:hover { --bg: #fff; --bd: var(--pine); }
.btn-light { --bg: #fff; --fg: var(--pine); --bd: #fff; }
.btn-outline-light { --bg: transparent; --fg: #fff; --bd: rgba(255,255,255,.5); }
.btn-outline-light:hover { --bg: rgba(255,255,255,.12); --fg: #fff; }
.btn-sm { padding: 9px 18px; font-size: .875rem; }
.btn-block { width: 100%; }

.link-arrow { font-weight: 550; color: var(--pine); display: inline-flex; align-items: center; gap: 6px; font-size: .95rem; }
.link-arrow span { transition: transform .2s; }
.link-arrow:hover span { transform: translateX(4px); }

.chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 999px;
  background: var(--paper-2); border: 1px solid var(--line); color: var(--ink-3);
  font-size: .75rem; font-weight: 500; line-height: 1.4;
}
.chip-xs { font-size: .68rem; padding: 2px 8px; }
.chip-ok { background: #eef6f1; border-color: #cfe6d8; color: var(--ok); }
.chip-filter {
  display: inline-block; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--ink-3); font-size: .875rem; transition: .18s;
}
.chip-filter:hover { border-color: var(--pine-3); color: var(--pine); }
.chip-filter.is-on { background: var(--pine); border-color: var(--pine); color: #fff; }

/* --------------------------------------------------------------- Topbar */
.topbar { background: var(--pine); color: rgba(255,255,255,.82); font-size: .8rem; }
.topbar-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 38px; }
.topbar-note { margin: 0; display: flex; align-items: center; gap: 8px; }
.topbar-note .dot { width: 7px; height: 7px; border-radius: 50%; background: #6fdcb0; box-shadow: 0 0 0 3px rgba(111,220,176,.22); }
.topbar-links { display: flex; gap: 20px; }
.topbar-links a { color: rgba(255,255,255,.88); }
.topbar-links a:hover { color: #fff; }

/* ----------------------------------------------------------------- Head */
.site-head {
  position: sticky; top: 0; z-index: 60; background: rgba(251,250,247,.88);
  backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--line);
  transition: box-shadow .25s;
}
.site-head.is-stuck { box-shadow: 0 2px 18px rgba(18,32,31,.07); }
.head-in { display: flex; align-items: center; gap: 28px; min-height: 74px; }

.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); flex-shrink: 0; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  background: linear-gradient(145deg, var(--pine) 0%, var(--pine-3) 100%);
  color: #fff; font-family: var(--ff-d); font-size: .95rem; font-weight: 700; letter-spacing: .02em;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.25);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--ff-d); font-size: 1.14rem; font-weight: 600; color: var(--ink); letter-spacing: -.01em; }
.brand-text small { font-size: .64rem; letter-spacing: .13em; text-transform: uppercase; color: var(--ink-4); margin-top: 3px; }

.main-nav { margin-left: auto; }
.main-nav ul { display: flex; gap: 4px; }
.main-nav a {
  display: block; padding: 9px 13px; border-radius: 8px; color: var(--ink-2);
  font-size: .925rem; font-weight: 500; transition: .16s;
}
.main-nav a:hover { background: var(--paper-2); color: var(--pine); }
.main-nav a.active { color: var(--pine); font-weight: 600; position: relative; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 2px; height: 2px;
  background: var(--brass); border-radius: 2px;
}

.head-acts { display: flex; align-items: center; gap: 10px; }
.burger { display: none; width: 42px; height: 42px; border: 1px solid var(--line-2); background: #fff; border-radius: 10px; padding: 11px 10px; }
.burger span { display: block; height: 2px; background: var(--ink); border-radius: 2px; margin: 3px 0; transition: .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 112px 0 0; z-index: 55; background: var(--paper);
  padding: 20px var(--gut) 40px; overflow-y: auto; border-top: 1px solid var(--line);
}
.mobile-nav ul { display: flex; flex-direction: column; }
.mobile-nav a { display: block; padding: 15px 4px; border-bottom: 1px solid var(--line); font-size: 1.06rem; color: var(--ink); font-weight: 500; }
.mobile-nav-acts { display: grid; gap: 10px; margin-top: 22px; }

/* ----------------------------------------------------------------- Hero */
.hero { position: relative; overflow: hidden; background: var(--paper); padding: 64px 0 72px; }
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(60% 70% at 92% 6%, rgba(185,138,62,.13) 0%, rgba(185,138,62,0) 62%),
    radial-gradient(52% 60% at 6% 92%, rgba(31,122,111,.10) 0%, rgba(31,122,111,0) 60%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 30% 30%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 30% 30%, #000 0%, transparent 72%);
}
.hero-in { position: relative; display: grid; grid-template-columns: 1.35fr .82fr; gap: 56px; align-items: start; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin: 0 0 14px;
  font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 650; color: var(--brass);
}
.eyebrow .pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--brass); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(185,138,62,.5);} 50% { box-shadow: 0 0 0 6px rgba(185,138,62,0);} }

.hero h1 { margin-bottom: 18px; max-width: 15em; }
.hero h1 em { font-style: italic; color: var(--pine-3); }
.lead { font-size: 1.075rem; color: var(--ink-3); max-width: 38em; }

.hero-search { display: flex; gap: 8px; margin: 26px 0 14px; max-width: 640px; }
.hero-search input {
  flex: 1; min-width: 0; padding: 15px 20px; border-radius: 999px; border: 1px solid var(--line-2);
  background: #fff; box-shadow: var(--sh-sm); font-size: .95rem;
}
.hero-search input::placeholder { color: var(--ink-4); }
.hero-search input:focus { outline: none; border-color: var(--pine-3); box-shadow: 0 0 0 4px rgba(31,122,111,.12); }

.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.hero-tags a { font-size: .82rem; color: var(--ink-3); padding: 5px 12px; border: 1px dashed var(--line-2); border-radius: 999px; }
.hero-tags a:hover { border-color: var(--pine-3); color: var(--pine); border-style: solid; }

.hero-proof { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; max-width: 620px; border-top: 1px solid var(--line); padding-top: 22px; }
.hero-proof li { display: flex; flex-direction: column; }
.hero-proof strong { font-family: var(--ff-d); font-size: 1.55rem; font-weight: 600; color: var(--pine); line-height: 1.1; }
.hero-proof span { font-size: .78rem; color: var(--ink-4); margin-top: 4px; }

.hero-card { position: relative; }
.hero-card::before {
  content: ""; position: absolute; inset: -14px -14px auto auto; width: 120px; height: 120px;
  border-radius: 50%; background: radial-gradient(circle, rgba(185,138,62,.22), transparent 70%);
}

/* ----------------------------------------------------------------- Forms */
.inq-form, .rfq-form, .auth-card form {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 26px; box-shadow: var(--sh);
}
.inq-form label, .rfq-form label, .auth-card label { display: block; margin-bottom: 14px; font-size: .84rem; font-weight: 550; color: var(--ink-2); }
.inq-title { font-family: var(--ff-d); font-size: 1.32rem; margin-bottom: 4px; }
.inq-sub { font-size: .82rem; color: var(--ink-4); margin-bottom: 18px; }
.inq-sub strong { color: var(--ok); }
.req { color: var(--err); }

input[type="text"], input[type="email"], input[type="password"], input[type="search"],
input[type="number"], input[type="tel"], select, textarea {
  width: 100%; margin-top: 6px; padding: 11px 14px; border-radius: 10px;
  border: 1px solid var(--line-2); background: #fff; font-size: .93rem; transition: border-color .18s, box-shadow .18s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--pine-3); box-shadow: 0 0 0 3px rgba(31,122,111,.12); }
textarea { resize: vertical; min-height: 90px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check { display: flex !important; align-items: flex-start; gap: 9px; font-size: .8rem !important; font-weight: 400 !important; color: var(--ink-3) !important; }
.check input { width: 16px; height: 16px; margin: 2px 0 0; flex-shrink: 0; accent-color: var(--pine); }
.form-msg { font-size: .85rem; margin: 12px 0 0; min-height: 1.2em; }
.form-msg.is-ok { color: var(--ok); }
.form-msg.is-err { color: var(--err); }

/* ------------------------------------------------------------- Sections */
.sec { padding: 76px 0; }
.sec-tight { padding: 44px 0 64px; }
.sec-alt { background: var(--paper-2); }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 36px; }
.sec-head.center { flex-direction: column; align-items: center; text-align: center; }
.sec-head h2 { margin-bottom: 6px; }
.sec-sub { color: var(--ink-3); font-size: .95rem; margin: 0; max-width: 46em; }

/* ------------------------------------------------------------- Cat grid */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.cat-grid a {
  display: flex; align-items: center; gap: 13px; padding: 16px 18px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r); transition: .2s; height: 100%;
}
.cat-grid a:hover { border-color: var(--pine-3); box-shadow: var(--sh); transform: translateY(-2px); }
.cat-ico {
  width: 38px; height: 38px; flex-shrink: 0; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(150deg, #eef4f1, #e3ece7); color: var(--pine); font-family: var(--ff-d); font-weight: 700; font-size: 1.05rem;
}
.cat-t { display: flex; flex-direction: column; min-width: 0; }
.cat-t strong { font-size: .92rem; color: var(--ink); font-weight: 600; }
.cat-t small { font-size: .76rem; color: var(--ink-4); line-height: 1.4; margin-top: 2px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* --------------------------------------------------------------- Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: st; position: relative; }
.steps li { padding: 26px 24px 26px 0; position: relative; }
.steps li::before {
  content: ""; position: absolute; top: 42px; left: 52px; right: 8px; height: 1px;
  background: linear-gradient(90deg, var(--line-2), transparent);
}
.steps li:last-child::before { display: none; }
.step-n {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  background: #fff; border: 1px solid var(--line-2); color: var(--brass);
  font-weight: 700; font-size: .82rem; margin-bottom: 16px; position: relative; z-index: 1;
  font-family: var(--ff-d);
}
.steps h3 { font-size: 1.02rem; margin-bottom: 7px; }
.steps p { font-size: .88rem; color: var(--ink-3); margin: 0; }

/* --------------------------------------------------------------- Cards */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.p-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden;
  display: flex; flex-direction: column; transition: .22s;
}
.p-card:hover { box-shadow: var(--sh); transform: translateY(-3px); border-color: var(--line-2); }
.p-card-media { position: relative; display: block; aspect-ratio: 4/3; overflow: hidden; background: var(--paper-2); }
.p-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.p-card:hover .p-card-media img { transform: scale(1.045); }
.card-badge {
  position: absolute; top: 12px; left: 12px; background: rgba(255,255,255,.94); color: var(--brass);
  font-size: .68rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
}
.p-card-body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.p-card-cat { font-size: .71rem; letter-spacing: .1em; text-transform: uppercase; color: var(--brass); margin: 0 0 6px; font-weight: 650; }
.p-card h3 { font-size: .99rem; line-height: 1.35; margin-bottom: 7px; }
.p-card h3 a { color: var(--ink); }
.p-card h3 a:hover { color: var(--pine-3); }
.p-card-sum { font-size: .845rem; color: var(--ink-3); margin-bottom: 12px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.p-card-meta { display: flex; gap: 16px; font-size: .76rem; color: var(--ink-3); padding-bottom: 12px; border-bottom: 1px dashed var(--line); margin-bottom: 12px; }
.p-card-meta span { color: var(--ink-4); display: block; font-size: .68rem; text-transform: uppercase; letter-spacing: .07em; }
.p-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; }
.p-card-price { font-weight: 650; color: var(--pine); font-size: .88rem; white-space: nowrap; }

.s-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; transition: .22s; }
.s-card:hover { box-shadow: var(--sh); transform: translateY(-3px); }
.s-card-media { position: relative; display: block; aspect-ratio: 8/5; overflow: hidden; background: var(--paper-2); }
.s-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.s-card:hover .s-card-media img { transform: scale(1.04); }
.verify-badge {
  position: absolute; bottom: 12px; left: 12px; background: var(--pine); color: #fff;
  font-size: .7rem; font-weight: 600; padding: 5px 11px; border-radius: 999px;
  display: inline-flex; align-items: center; gap: 4px;
}
.verify-badge.lg { font-size: .8rem; padding: 8px 15px; }
.s-card-body { padding: 16px 18px 18px; }
.s-card-body h3 { font-size: 1rem; margin-bottom: 5px; }
.s-card-body h3 a { color: var(--ink); }
.s-card-loc { font-size: .82rem; color: var(--ink-4); margin-bottom: 12px; }
.s-card-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 12px; }
.s-card-facts li { font-size: .82rem; color: var(--ink-2); font-weight: 550; }
.s-card-facts span { display: block; font-size: .67rem; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-4); font-weight: 500; }
.s-card-certs { display: flex; flex-wrap: wrap; gap: 5px; margin: 0; }

/* --------------------------------------------------------------- Proof */
.proof-grid { display: grid; grid-template-columns: 1.3fr .8fr; gap: 64px; align-items: start; }
.proof-copy h2 { max-width: 18em; }
.check-list { display: grid; gap: 12px; margin: 20px 0 26px; }
.check-list li { position: relative; padding-left: 28px; font-size: .93rem; color: var(--ink-3); }
.check-list li strong { color: var(--ink); font-weight: 600; }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: -1px; width: 19px; height: 19px; border-radius: 50%;
  background: #e9f2ed; color: var(--ok); font-size: .68rem; display: grid; place-items: center; font-weight: 700;
}
.check-list.sm li { font-size: .865rem; }
.proof-numbers { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.pn { background: #fff; padding: 24px 20px; }
.pn strong { display: block; font-family: var(--ff-d); font-size: 1.85rem; font-weight: 600; color: var(--pine); line-height: 1.1; }
.pn span { font-size: .79rem; color: var(--ink-4); line-height: 1.45; display: block; margin-top: 6px; }

/* ---------------------------------------------------------------- Blog */
.post-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; transition: .22s; display: flex; flex-direction: column; }
.post-card:hover { box-shadow: var(--sh); transform: translateY(-3px); }
.post-card-media { display: block; aspect-ratio: 16/9; overflow: hidden; background: var(--paper-2); }
.post-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.post-card:hover .post-card-media img { transform: scale(1.04); }
.post-card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.post-meta { font-size: .76rem; color: var(--ink-4); display: flex; align-items: center; gap: 8px; margin-bottom: 9px; flex-wrap: wrap; }
.tag { background: #f3efe4; color: var(--brass); padding: 2px 9px; border-radius: 999px; font-weight: 600; letter-spacing: .04em; font-size: .68rem; text-transform: uppercase; }
.post-card h3 { font-size: 1.03rem; line-height: 1.35; margin-bottom: 8px; }
.post-card h3 a { color: var(--ink); }
.post-card h3 a:hover { color: var(--pine-3); }
.post-card p { font-size: .87rem; color: var(--ink-3); flex: 1; margin-bottom: 14px; }

/* ----------------------------------------------------------------- FAQ */
.faq-wrap { max-width: 880px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; padding: 20px 40px 20px 0; position: relative; font-weight: 600;
  color: var(--ink); font-size: 1rem; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  font-size: 1.3rem; font-weight: 300; color: var(--brass); transition: transform .2s;
}
.faq details[open] summary::after { content: "−"; }
.faq-a { padding: 0 40px 20px 0; }
.faq-a p { font-size: .92rem; color: var(--ink-3); margin: 0; }

/* ---------------------------------------------------------------- CTA */
.cta-band { background: linear-gradient(115deg, var(--pine) 0%, #174e4b 55%, #1f6b60 100%); color: #fff; padding: 56px 0; position: relative; overflow: hidden; }
.cta-band::after {
  content: ""; position: absolute; right: -80px; top: -80px; width: 340px; height: 340px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.16);
}
.cta-in { display: flex; align-items: center; justify-content: space-between; gap: 40px; position: relative; }
.cta-band h2 { color: #fff; font-size: clamp(1.4rem, 1.1rem + 1.1vw, 2rem); margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,.75); margin: 0; font-size: .95rem; max-width: 44em; }
.cta-acts { display: flex; gap: 10px; flex-shrink: 0; }

/* --------------------------------------------------------------- Footer */
.site-foot { background: #0c1a19; color: rgba(255,255,255,.66); padding: 64px 0 0; font-size: .88rem; }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 44px; padding-bottom: 48px; }
.brand-foot .brand-text strong { color: #fff; }
.brand-foot .brand-text small { color: rgba(255,255,255,.42); }
.foot-brand p { margin: 16px 0 18px; line-height: 1.7; max-width: 30em; }
.foot-contact { display: grid; gap: 9px; }
.foot-contact li { display: flex; gap: 9px; align-items: flex-start; line-height: 1.55; }
.foot-contact span { color: var(--brass-2); flex-shrink: 0; }
.foot-contact a, .foot-col a { color: rgba(255,255,255,.72); }
.foot-contact a:hover, .foot-col a:hover { color: #fff; }
.foot-col h3 { color: #fff; font-size: .79rem; letter-spacing: .11em; text-transform: uppercase; margin-bottom: 16px; font-weight: 600; }
.foot-col ul { display: grid; gap: 10px; }
.foot-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  border-top: 1px solid rgba(255,255,255,.1); padding-top: 22px; padding-bottom: 26px; font-size: .8rem;
}
.foot-bottom p { margin: 0; }
.foot-bottom ul { display: flex; gap: 22px; }
.foot-bottom a { color: rgba(255,255,255,.6); }

.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 50; width: 52px; height: 52px;
  border-radius: 50%; background: #25d366; color: #fff; display: grid; place-items: center;
  box-shadow: 0 8px 24px rgba(37,211,102,.4); transition: transform .2s;
}
.wa-float:hover { transform: scale(1.07); color: #fff; }

/* ---------------------------------------------------------- Sub pages */
.crumbs { background: var(--paper-2); border-bottom: 1px solid var(--line); font-size: .78rem; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 8px; padding: 11px 0; color: var(--ink-4); }
.crumbs li + li::before { content: "/"; margin-right: 8px; color: var(--line-2); }
.crumbs a { color: var(--ink-3); }
.crumbs a:hover { color: var(--pine); }

.page-head { padding: 48px 0 8px; }
.page-head h1 { max-width: 22em; margin-bottom: 14px; }
.page-head .lead { max-width: 46em; }

.filter-bar { display: flex; gap: 14px; align-items: flex-end; justify-content: space-between; margin-bottom: 20px; flex-wrap: wrap; }
.filter-search { display: flex; gap: 8px; flex: 1; min-width: 260px; max-width: 560px; }
.filter-search input { margin-top: 0; }
.filter-sort { display: flex; align-items: center; gap: 8px; font-size: .82rem; color: var(--ink-4); }
.filter-sort select { margin-top: 0; width: auto; min-width: 170px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }

.empty { text-align: center; padding: 80px 20px; background: #fff; border: 1px dashed var(--line-2); border-radius: var(--r-lg); }
.empty h1, .empty h2 { margin-bottom: 8px; }

/* ---------------------------------------------------------------- PDP */
.pdp { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.pdp-gallery { position: sticky; top: 100px; }
.pdp-main { margin: 0; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); background: #fff; aspect-ratio: 4/3; }
.pdp-main img { width: 100%; height: 100%; object-fit: cover; }
.pdp-thumbs { display: flex; gap: 10px; margin-top: 10px; }
.pdp-thumbs button { padding: 0; border: 2px solid transparent; border-radius: 10px; overflow: hidden; background: #fff; width: 78px; height: 78px; transition: .18s; }
.pdp-thumbs button.is-on { border-color: var(--pine); }
.pdp-thumbs img { width: 100%; height: 100%; object-fit: cover; }

.pdp-cat { font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; color: var(--brass); font-weight: 600; margin-bottom: 10px; }
.pdp-info h1 { font-size: clamp(1.55rem, 1.2rem + 1.3vw, 2.3rem); margin-bottom: 12px; }
.pdp-sum { color: var(--ink-3); font-size: .97rem; }
.pdp-price { display: flex; align-items: baseline; gap: 14px; padding: 16px 20px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); margin: 20px 0; flex-wrap: wrap; }
.pp-val { font-family: var(--ff-d); font-size: 1.62rem; color: var(--pine); font-weight: 600; }
.pp-note { font-size: .8rem; color: var(--ink-4); }
.pdp-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin: 0 0 22px; }
.pdp-facts > div { background: #fff; padding: 13px 16px; }
.pdp-facts dt { font-size: .69rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-4); margin-bottom: 3px; }
.pdp-facts dd { margin: 0; font-size: .9rem; color: var(--ink); font-weight: 550; }
.pdp-acts { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.pdp-supplier { display: flex; gap: 14px; padding: 16px; border: 1px solid var(--line); border-radius: var(--r); background: #fff; align-items: center; }
.ps-media img { width: 72px; height: 72px; border-radius: 12px; object-fit: cover; }
.ps-label { font-size: .68rem; text-transform: uppercase; letter-spacing: .09em; color: var(--ink-4); margin: 0 0 2px; }
.ps-body h2 { font-size: 1rem; margin: 0 0 4px; font-family: var(--ff); font-weight: 600; }
.ps-meta { font-size: .79rem; color: var(--ink-4); margin: 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.pdp-lower { display: grid; grid-template-columns: 1fr 380px; gap: 48px; align-items: start; }
.pdp-body h2 { font-size: 1.32rem; margin-top: 34px; margin-bottom: 12px; }
.pdp-body h2:first-child { margin-top: 0; }
.pdp-body p { color: var(--ink-3); }
.aside-sticky { position: sticky; top: 100px; }

.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: #fff; }
.spec-table { width: 100%; border-collapse: collapse; font-size: .89rem; }
.spec-table th, .spec-table td { padding: 11px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table th { width: 34%; color: var(--ink-3); font-weight: 550; background: #fcfbf8; }
.spec-table td { color: var(--ink); }

.mini-steps { counter-reset: ms; display: grid; gap: 14px; margin: 16px 0 8px; }
.mini-steps li { position: relative; padding-left: 34px; font-size: .9rem; color: var(--ink-3); counter-increment: ms; }
.mini-steps li::before {
  content: counter(ms); position: absolute; left: 0; top: 0; width: 22px; height: 22px; border-radius: 50%;
  background: var(--pine); color: #fff; display: grid; place-items: center; font-size: .7rem; font-weight: 700;
}
.mini-steps strong { color: var(--ink); }

/* ------------------------------------------------------------ Factory */
.fac-top { display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; align-items: center; }
.fac-media { position: relative; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 8/5; }
.fac-media img { width: 100%; height: 100%; object-fit: cover; }
.fac-head .lead { font-size: .97rem; }
.fac-loc { font-size: .86rem; color: var(--ink-4); margin-bottom: 14px; }
.fac-certs { display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0; }
.fac-lower { display: grid; grid-template-columns: 1fr 380px; gap: 48px; align-items: start; }
.fac-lower h2 { font-size: 1.3rem; margin-top: 32px; margin-bottom: 14px; }
.fac-lower h2:first-child { margin-top: 0; }
.fac-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin: 0 0 8px; }
.fac-facts > div { background: #fff; padding: 13px 16px; }
.fac-facts dt { font-size: .69rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-4); margin-bottom: 3px; }
.fac-facts dd { margin: 0; font-size: .9rem; color: var(--ink); font-weight: 550; }

/* ---------------------------------------------------------------- RFQ */
.rfq-grid { display: grid; grid-template-columns: 1fr 380px; gap: 40px; align-items: start; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); }
.card-pad { padding: 24px; }
.card-accent { background: linear-gradient(160deg, #0f3d3e, #1a5a55); border-color: transparent; color: rgba(255,255,255,.82); }
.card-accent h3 { color: #fff; }
.card-accent a { color: var(--brass-2); }
.rfq-aside { display: grid; gap: 16px; }
.rfq-aside h3 { font-size: 1rem; margin-bottom: 12px; }
.rfq-feed { display: grid; gap: 12px; }
.rfq-feed li { border-left: 2px solid var(--brass); padding-left: 12px; }
.rfq-feed strong { display: block; font-size: .87rem; color: var(--ink); font-weight: 550; }
.rfq-feed span { font-size: .76rem; color: var(--ink-4); }
.rfq-form h2 { font-family: var(--ff-d); font-size: 1.4rem; margin-bottom: 18px; }
.tiny { font-size: .78rem; color: var(--ink-4); }

/* --------------------------------------------------------------- Post */
.post-wrap { max-width: 820px; }
.post-wrap.narrow { max-width: 720px; }
.post-head { margin-bottom: 26px; }
.post-head h1 { font-size: clamp(1.7rem, 1.3rem + 1.6vw, 2.6rem); }
.post-cover { width: 100%; border-radius: var(--r-lg); margin-bottom: 34px; aspect-ratio: 2/1; object-fit: cover; }
.post-content { font-size: 1.02rem; line-height: 1.78; color: var(--ink-2); }
.post-content h2 { font-size: 1.45rem; margin: 38px 0 14px; }
.post-content h3 { font-size: 1.13rem; margin: 28px 0 10px; }
.post-content p { margin-bottom: 18px; }
.post-content ul, .post-content ol { margin: 0 0 20px; padding-left: 0; display: grid; gap: 10px; }
.post-content li { position: relative; padding-left: 22px; }
.post-content ul li::before { content: "—"; position: absolute; left: 0; color: var(--brass); }
.post-content ol { counter-reset: pc; }
.post-content ol li { counter-increment: pc; padding-left: 26px; }
.post-content ol li::before { content: counter(pc) "."; position: absolute; left: 0; color: var(--brass); font-weight: 600; }
.post-content blockquote { margin: 24px 0; padding: 18px 22px; background: var(--paper-2); border-left: 3px solid var(--brass); border-radius: 0 var(--r) var(--r) 0; font-style: italic; }
.post-content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: .92rem; }
.post-content th, .post-content td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.post-content th { background: var(--paper-2); }
.post-cta { margin-top: 44px; padding: 28px; background: var(--paper-2); border-radius: var(--r-lg); border: 1px solid var(--line); }
.post-cta h2 { font-size: 1.3rem; }
.post-cta p { color: var(--ink-3); }

/* ---------------------------------------------------------------- Misc */
.svc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.svc { background: #fff; padding: 34px 32px; }
.svc-n { font-family: var(--ff-d); font-size: .95rem; color: var(--brass); font-weight: 600; letter-spacing: .06em; }
.svc h2 { font-size: 1.28rem; margin: 10px 0 10px; }
.svc p { font-size: .92rem; color: var(--ink-3); }
.svc .check-list { margin: 16px 0 0; }

.fee-wrap { margin-top: 8px; }
.fee-wrap h2 { font-size: 1.35rem; }
.fee-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.fee-table th, .fee-table td { padding: 12px 16px; border-bottom: 1px solid var(--line); text-align: left; }
.fee-table thead th { background: var(--paper-2); font-size: .74rem; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-4); }
.fee-table tbody th { font-weight: 550; color: var(--ink); }

.about-grid { display: grid; grid-template-columns: 1fr 320px; gap: 52px; align-items: start; }
.about-aside { display: grid; gap: 16px; }
.about-aside h3 { font-size: .95rem; }
.stat-list { display: grid; gap: 14px; }
.stat-list strong { font-family: var(--ff-d); font-size: 1.5rem; color: var(--pine); display: block; line-height: 1.1; }
.stat-list span { font-size: .8rem; color: var(--ink-4); }

.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 28px; align-items: start; }
.contact-list { display: grid; gap: 16px; }
.contact-list li { display: grid; gap: 2px; font-size: .93rem; }
.contact-list span { font-size: .68rem; text-transform: uppercase; letter-spacing: .09em; color: var(--ink-4); }
.auth-wrap { display: grid; place-items: center; }
.auth-card { max-width: 420px; width: 100%; }
.auth-card h1 { font-size: 1.7rem; margin-bottom: 6px; }

.pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 44px; font-size: .9rem; }
.pager ul { display: flex; gap: 6px; }
.pager a, .pager span {
  display: grid; place-items: center; min-width: 38px; height: 38px; padding: 0 10px;
  border-radius: 10px; border: 1px solid var(--line); background: #fff; color: var(--ink-2);
}
.pager a:hover { border-color: var(--pine); color: var(--pine); }
.pager .is-cur { background: var(--pine); color: #fff; border-color: var(--pine); }
.pager .is-off { opacity: .4; }
.pager-gap { display: grid; place-items: center; color: var(--ink-4); }

/* ---------------------------------------------------------- Responsive */
@media (max-width: 1120px) {
  :root { --gut: 24px; }
  .main-nav { display: none; }
  .burger { display: block; }
  .head-in { min-height: 64px; }
  .mobile-nav { inset: 102px 0 0; }
  .hero-in { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { max-width: 560px; }
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .pdp-lower, .fac-lower, .rfq-grid, .about-grid { grid-template-columns: 1fr; }
  .pdp-gallery, .aside-sticky { position: static; }
  .pdp-aside { max-width: 560px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps li::before { display: none; }
  .proof-grid { grid-template-columns: 1fr; gap: 36px; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
}

@media (max-width: 860px) {
  .sec { padding: 52px 0; }
  .sec-tight { padding: 32px 0 44px; }
  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .pdp, .fac-top, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
  .pdp-gallery { max-width: 560px; }
  .svc-grid { grid-template-columns: 1fr; }
  .cta-in { flex-direction: column; align-items: flex-start; gap: 24px; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .topbar-links { display: none; }
  .hero-proof { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}

@media (max-width: 640px) {
  :root { --gut: 18px; }
  body { font-size: 15.5px; }
  .topbar-note { font-size: .74rem; }
  .head-acts .btn-ghost { display: none; }
  .hero { padding: 36px 0 48px; }
  .hero h1 { font-size: 2.05rem; }
  .hero-search { flex-direction: column; }
  .hero-search .btn { width: 100%; }
  .grid-4, .grid-3, .cat-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 8px; }
  .steps li { padding: 14px 0; }
  .field-row { grid-template-columns: 1fr; }
  .pdp-facts, .fac-facts { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 30px; }
  .foot-bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
  .foot-bottom ul { flex-wrap: wrap; gap: 14px; }
  .inq-form, .rfq-form, .card-pad { padding: 20px; }
  .page-head { padding: 32px 0 4px; }
  .proof-numbers { grid-template-columns: 1fr 1fr; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .filter-sort { justify-content: space-between; }
  .wa-float { width: 46px; height: 46px; right: 14px; bottom: 14px; }
  .post-content { font-size: .98rem; }
  .svc { padding: 26px 22px; }
}

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

@media print {
  .site-head, .topbar, .mobile-nav, .wa-float, .cta-band, .site-foot, .pager { display: none; }
}