/* ============================================================
   集买买供应链官网 · 动效样式（白色主题 · 品牌蓝）
   ============================================================ */
:root {
  --bg: #ffffff;
  --bg-2: #f4f7fc;
  --bg-3: #e9eff8;
  --ink: #14213a;
  --ink-dim: #5a6b85;
  --accent: #1266e3;
  --accent-deep: #0b4fc0;
  --accent-2: #ffb800;
  --accent-soft: rgba(18, 102, 227, .08);
  --line: rgba(20, 33, 58, .09);
  --card: #ffffff;
  --shadow: 0 14px 44px rgba(20, 50, 110, .10);
  --radius: 18px;
  --font-d: 'Archivo', 'Noto Sans SC', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: auto; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Noto Sans SC', sans-serif;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
::selection { background: var(--accent); color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: #c4cfdf; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------------- 滚动进度 & 导航 ---------------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 300;
}
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 64px);
  transition: background .4s, padding .4s, box-shadow .4s, transform .4s;
}
.nav.scrolled {
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding-top: 10px; padding-bottom: 10px;
  box-shadow: 0 1px 0 var(--line), 0 10px 30px rgba(20, 50, 110, .06);
}
/* 导航始终固定显示：仅保留滚动后的毛玻璃背景，不再下滑隐藏 */
.logo-mark { display: inline-flex; gap: 3px; align-items: flex-end; height: 22px; }
.logo-mark i { width: 6px; background: var(--accent); border-radius: 2px; display: block; }
.logo-mark i:nth-child(1) { height: 12px; }
.logo-mark i:nth-child(2) { height: 22px; }
.logo-mark i:nth-child(3) { height: 16px; }
.nav-logo { display: flex; align-items: center; gap: 12px; }
.nav-logo img { height: 42px; width: auto; filter: drop-shadow(0 4px 10px rgba(18,102,227,.18)); }
.logo-text { font-weight: 900; font-size: 19px; letter-spacing: .04em; }
.logo-text em { font-style: normal; color: var(--accent); }
.nav-links { display: flex; gap: clamp(14px, 2.4vw, 34px); }
.nav-links a {
  font-size: 14px; color: var(--ink-dim); position: relative; padding: 4px 0;
  transition: color .3s;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--accent); transition: width .35s cubic-bezier(.65, 0, .35, 1);
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
  font-size: 13px; font-weight: 700; color: var(--accent);
  border: 1.5px solid var(--accent); padding: 9px 22px; border-radius: 999px;
  background: var(--accent-soft);
  transition: background .3s, color .3s, box-shadow .3s;
}
.nav-cta:hover { background: var(--accent); color: #fff; box-shadow: 0 6px 20px rgba(18, 102, 227, .35); }
.nav-burger { display: none; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 15px; font-weight: 700; padding: 15px 32px; border-radius: 999px;
  border: none; cursor: pointer; position: relative; overflow: hidden;
  transition: transform .3s, box-shadow .3s, background .3s, color .3s;
  will-change: transform;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 24px rgba(18, 102, 227, .30); }
.btn-primary:hover { background: var(--accent-deep); box-shadow: 0 12px 36px rgba(18, 102, 227, .45); }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid rgba(20, 33, 58, .2); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-lg { font-size: 17px; padding: 18px 44px; }

/* ---------------- HERO ---------------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; overflow: hidden; padding: 100px 20px 108px;
  background:
    radial-gradient(ellipse 70% 55% at 50% 0%, rgba(18, 102, 227, .07), transparent 65%),
    radial-gradient(ellipse 45% 40% at 85% 85%, rgba(255, 184, 0, .07), transparent 60%),
    var(--bg);
}
#particleCanvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(20, 33, 58, .045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(20, 33, 58, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 45%, #000 20%, transparent 75%);
}
.hero-content { position: relative; z-index: 2; max-width: 1080px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: .18em; color: var(--ink-dim);
  border: 1px solid var(--line); padding: 9px 20px; border-radius: 999px;
  background: rgba(255, 255, 255, .7); margin-bottom: 34px;
  box-shadow: 0 4px 16px rgba(20, 50, 110, .06);
}
.tag-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(18,102,227,.5);} 50% { box-shadow: 0 0 0 8px rgba(18,102,227,0);} }
.hero-title { font-size: clamp(44px, 9vw, 104px); font-weight: 900; line-height: 1.08; letter-spacing: .02em; }
.ht-line { display: block; }
.ht-line .char { display: inline-block; will-change: transform, opacity; }
.ht-accent .char { color: var(--accent); text-shadow: 0 0 44px rgba(18, 102, 227, .28); }
.hero-sub {
  margin: 30px auto 0; max-width: 680px; font-size: clamp(15px, 1.7vw, 18px);
  line-height: 2; color: var(--ink-dim); font-weight: 300;
}
.hero-actions { display: flex; gap: 18px; justify-content: center; margin-top: 44px; flex-wrap: wrap; }

.hero-scroll-hint {
  position: absolute; bottom: 86px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 11px; letter-spacing: .3em; color: var(--ink-dim); z-index: 2; text-indent: .3em;
}
.mouse { width: 24px; height: 38px; border: 1.5px solid rgba(20, 33, 58, .3); border-radius: 13px; display: flex; justify-content: center; padding-top: 7px; }
.wheel { width: 3px; height: 8px; background: var(--accent); border-radius: 2px; animation: wheel 1.5s ease-in-out infinite; }
@keyframes wheel { 0% { transform: translateY(0); opacity: 1;} 70% { transform: translateY(12px); opacity: 0;} 100% { opacity: 0;} }

.hero-marquee {
  position: absolute; bottom: 0; left: 0; right: 0; z-index: 2;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, .75); backdrop-filter: blur(8px);
  overflow: hidden; padding: 14px 0;
}
.marquee-track { display: flex; gap: 48px; width: max-content; will-change: transform; }
.marquee-item {
  display: flex; align-items: center; gap: 48px; white-space: nowrap;
  font-family: var(--font-d); font-size: 14px; font-weight: 800; letter-spacing: .28em; color: rgba(20, 33, 58, .45);
}
.marquee-item::after { content: ''; width: 8px; height: 8px; background: var(--accent); border-radius: 50%; flex: none; }

/* ---------------- 数据带 ---------------- */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-2); }
.stats-inner {
  display: grid; grid-template-columns: repeat(4, 1fr);
  max-width: 1280px; margin: 0 auto;
}
.stat-cell {
  padding: clamp(26px, 3.4vw, 46px) 24px; text-align: center;
  border-left: 1px solid var(--line); position: relative; overflow: hidden;
}
.stat-cell:first-child { border-left: none; }
.stat-cell::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 120%, var(--accent-soft), transparent 60%);
  opacity: 0; transition: opacity .5s;
}
.stat-cell:hover::before { opacity: 1; }
.stat-value { font-family: var(--font-d); font-size: clamp(38px, 5vw, 60px); font-weight: 900; color: var(--ink); font-variant-numeric: tabular-nums; }
.stat-value .suffix { color: var(--accent); font-size: .62em; margin-left: 2px; }
.stat-label { margin-top: 10px; font-size: 15px; font-weight: 700; }
.stat-desc { margin-top: 6px; font-size: 12.5px; color: var(--ink-dim); }

/* ---------------- 通用 Section ---------------- */
.section { padding: clamp(54px, 6.4vw, 90px) clamp(20px, 5vw, 64px); max-width: 1360px; margin: 0 auto; }
.section-head { margin-bottom: clamp(28px, 4vw, 52px); }
.section-label {
  display: inline-block; font-family: var(--font-d); font-size: 13px; font-weight: 800;
  letter-spacing: .34em; color: var(--accent); margin-bottom: 14px; text-transform: uppercase;
}
.section-title { font-size: clamp(32px, 5vw, 56px); font-weight: 900; line-height: 1.15; }
.st-line { display: inline-block; }
.section-desc { margin-top: 12px; color: var(--ink-dim); font-size: 16px; font-weight: 300; letter-spacing: .04em; }
.section-head.light .section-desc { color: rgba(255, 255, 255, .78); }
.section-head.light .section-title { color: #fff; }

/* ---------------- 关于我们 ---------------- */
.about-body { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(30px, 4.4vw, 66px); align-items: center; }
.about-heading { font-size: clamp(26px, 3.4vw, 40px); font-weight: 900; margin-bottom: 18px; }
.about-heading .word { display: inline-block; margin-right: .3em; }
.about-heading .hl { color: var(--accent); }
.about-para { color: var(--ink-dim); line-height: 1.95; font-size: 15.5px; font-weight: 300; }
.about-points { list-style: none; margin-top: 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.about-points li {
  display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); padding: 13px 16px; border-radius: 12px;
  box-shadow: 0 4px 14px rgba(20, 50, 110, .05);
  transition: border-color .3s, transform .3s, box-shadow .3s;
}
.about-points li:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 10px 24px rgba(18, 102, 227, .12); }
.about-points li::before {
  content: ''; width: 8px; height: 8px; flex: none; background: var(--accent); border-radius: 2px;
  transform: rotate(45deg);
}
.about-slogan {
  margin-top: 30px; padding: 18px 24px; border-left: 3px solid var(--accent);
  background: var(--accent-soft); border-radius: 0 12px 12px 0;
  font-weight: 700; letter-spacing: .06em; line-height: 1.9; font-size: 14.5px;
}
.about-visual { position: relative; }
.about-img-frame {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 16/10; background: var(--bg-3); border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.about-img-frame img { width: 100%; height: 100%; object-fit: cover; }
.about-img-frame.no-img img { display: none; }
.about-img-fallback {
  position: absolute; inset: 0; display: none; flex-direction: column; gap: 18px;
  align-items: center; justify-content: center; color: var(--ink-dim); font-size: 13px; letter-spacing: .1em;
  background:
    radial-gradient(circle at 30% 20%, rgba(18, 102, 227, .12), transparent 55%),
    radial-gradient(circle at 75% 80%, rgba(255, 184, 0, .10), transparent 50%),
    var(--bg-3);
}
.about-img-frame.no-img .about-img-fallback { display: flex; }
.frame-corner { position: absolute; width: 26px; height: 26px; border-color: var(--accent); border-style: solid; z-index: 3; }
.frame-corner.c1 { top: 14px; left: 14px; border-width: 2px 0 0 2px; }
.frame-corner.c2 { top: 14px; right: 14px; border-width: 2px 2px 0 0; }
.frame-corner.c3 { bottom: 14px; left: 14px; border-width: 0 0 2px 2px; }
.frame-corner.c4 { bottom: 14px; right: 14px; border-width: 0 2px 2px 0; }
.about-badge {
  position: absolute; right: -18px; bottom: 32px; z-index: 4;
  background: var(--accent); color: #fff; border-radius: 16px;
  padding: 18px 24px; text-align: center; box-shadow: 0 16px 40px rgba(18, 102, 227, .35);
  display: flex; flex-direction: column; gap: 2px;
}
.badge-num { font-family: var(--font-d); font-size: 24px; font-weight: 900; }
.badge-label { font-size: 12px; opacity: .9; letter-spacing: .12em; }

/* ---------------- 集买买文化 ---------------- */
.culture { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); max-width: none; }
.culture > * { max-width: 1360px; margin-left: auto; margin-right: auto; }
.culture-body { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(26px, 3.8vw, 54px); align-items: start; }
.culture-visual { position: relative; }
.culture-main-img {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 16/9; background: var(--bg-3); border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.culture-main-img img { width: 100%; height: 100%; object-fit: cover; }
.culture-main-img.no-img img { display: none; }
.culture-img-fallback {
  position: absolute; inset: 0; display: none; flex-direction: column; gap: 16px;
  align-items: center; justify-content: center; color: var(--ink-dim); font-size: 12.5px; letter-spacing: .08em;
  background:
    radial-gradient(circle at 30% 25%, rgba(18, 102, 227, .13), transparent 55%),
    radial-gradient(circle at 78% 80%, rgba(255, 184, 0, .12), transparent 52%),
    var(--bg-3);
}
.culture-main-img.no-img .culture-img-fallback { display: flex; }
.culture-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 10px; }
.culture-gallery:empty { display: none; }
.culture-gallery figure {
  margin: 0; border-radius: 12px; overflow: hidden; border: 1px solid var(--line);
  background: var(--bg-3); aspect-ratio: 3/2;
}
.culture-gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2,.8,.2,1); }
.culture-gallery figure:hover img { transform: scale(1.08); }
.culture-para { color: var(--ink-dim); line-height: 1.95; font-size: 15px; font-weight: 300; }
.culture-values { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.culture-value {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 16px; box-shadow: 0 4px 14px rgba(20, 50, 110, .05);
  transition: border-color .3s, transform .3s, box-shadow .3s;
}
.culture-value:hover { border-color: rgba(18, 102, 227, .45); transform: translateX(5px); box-shadow: 0 12px 28px rgba(18, 102, 227, .1); }
.cv-icon { flex: none; width: 34px; height: 34px; border-radius: 10px; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; }
.cv-icon svg { width: 18px; height: 18px; stroke: var(--accent); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.culture-value h4 { font-size: 15px; font-weight: 900; margin-bottom: 3px; }
.culture-value p { font-size: 12.5px; color: var(--ink-dim); line-height: 1.7; font-weight: 300; }

/* ---------------- 解决方案 ---------------- */
.solutions-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.solution-card {
  position: relative; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: clamp(20px, 2.4vw, 32px); overflow: hidden;
  box-shadow: 0 6px 20px rgba(20, 50, 110, .05);
  transition: transform .45s cubic-bezier(.2,.8,.2,1), border-color .45s, box-shadow .45s;
  will-change: transform;
}
.solution-card:hover { transform: translateY(-8px); border-color: rgba(18, 102, 227, .5); box-shadow: 0 22px 50px rgba(18, 102, 227, .13); }
.solution-card::before {
  content: ''; position: absolute; width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  top: var(--my, 50%); left: var(--mx, 50%); transform: translate(-50%, -50%);
  opacity: 0; transition: opacity .4s; pointer-events: none;
}
.solution-card:hover::before { opacity: 1; }
.sc-index {
  font-family: var(--font-d); font-size: 15px; font-weight: 800; color: var(--accent);
  letter-spacing: .2em; margin-bottom: 20px;
}
.sc-icon { width: 52px; height: 52px; margin-bottom: 20px; }
.sc-icon svg { width: 100%; height: 100%; stroke: var(--accent); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.solution-card h3 { font-size: 22px; font-weight: 900; margin-bottom: 12px; }
.solution-card p { color: var(--ink-dim); font-size: 14.5px; line-height: 1.95; font-weight: 300; }

/* ---------------- 核心品类 ---------------- */
.categories { max-width: none; background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.categories > * { max-width: 1360px; margin-left: auto; margin-right: auto; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cat-card {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 16/7.5; border: 1px solid var(--line); background: var(--bg-3);
  box-shadow: 0 6px 20px rgba(20, 50, 110, .06);
  transform-style: preserve-3d; will-change: transform; cursor: pointer;
}
.cat-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.8,.2,1); }
.cat-card:hover img { transform: scale(1.08); }
.cat-card.no-img img { display: none; }
.cat-card .cat-fallback {
  position: absolute; inset: 0; display: none; align-items: center; justify-content: center;
  background:
    radial-gradient(circle at 25% 25%, rgba(18, 102, 227, .14), transparent 55%),
    radial-gradient(circle at 80% 85%, rgba(255, 184, 0, .12), transparent 50%),
    linear-gradient(135deg, #ffffff, #eaf1fa);
}
.cat-card.no-img .cat-fallback { display: flex; }
.cat-fallback svg { width: 64px; height: 64px; stroke: rgba(18, 102, 227, .8); fill: none; stroke-width: 1.4; }
.cat-overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 14px 18px; background: linear-gradient(180deg, transparent 30%, rgba(10, 25, 55, .88));
}
.cat-overlay h3 { font-size: 18px; font-weight: 900; color: #fff; transform: translateY(8px); transition: transform .45s; }
.cat-overlay p { font-size: 13px; color: rgba(255, 255, 255, .82); margin-top: 6px; opacity: 0; transform: translateY(10px); transition: opacity .45s, transform .45s; line-height: 1.7; }
.cat-card:hover .cat-overlay h3 { transform: translateY(0); color: var(--accent-2); }
.cat-card:hover .cat-overlay p { opacity: 1; transform: translateY(0); }
.cat-num { position: absolute; top: 20px; right: 22px; font-family: var(--font-d); font-weight: 900; font-size: 15px; color: rgba(255, 255, 255, .75); letter-spacing: .1em; text-shadow: 0 2px 8px rgba(0,0,0,.3); }

/* ---------------- 优势 ---------------- */
.strength-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.strength-card {
  position: relative; text-align: center; padding: 16px 14px;
  border-radius: var(--radius); background: var(--card); border: 1px solid var(--line);
  box-shadow: 0 6px 20px rgba(20, 50, 110, .05);
  transition: transform .4s cubic-bezier(.2,.8,.2,1), box-shadow .4s, border-color .4s;
  transform-style: preserve-3d; will-change: transform;
}
.strength-card:hover { border-color: rgba(18, 102, 227, .5); box-shadow: 0 22px 50px rgba(18, 102, 227, .14); }
.strength-num {
  font-family: var(--font-d); font-size: 28px; font-weight: 900;
  color: transparent; -webkit-text-stroke: 1.5px rgba(18, 102, 227, .6);
  margin-bottom: 6px; transition: color .4s;
}
.strength-card:hover .strength-num { color: var(--accent); -webkit-text-stroke-color: transparent; }
.strength-card h3 { font-size: 16px; font-weight: 900; margin-bottom: 6px; }
.strength-card p { font-size: 12.5px; color: var(--ink-dim); line-height: 1.65; font-weight: 300; }

/* ---------------- 最新资讯 ---------------- */
.news { background: var(--bg-2); border-top: 1px solid var(--line); max-width: none; }
.news > * { max-width: 1280px; margin-left: auto; margin-right: auto; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card {
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 6px 20px rgba(20, 50, 110, .05); text-decoration: none; color: var(--ink);
  transition: transform .4s cubic-bezier(.2,.8,.2,1), box-shadow .4s, border-color .4s;
}
.news-card:hover { transform: translateY(-6px); border-color: rgba(18, 102, 227, .5); box-shadow: 0 22px 50px rgba(18, 102, 227, .14); }
.news-cover { aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg); }
.news-cover img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s cubic-bezier(.2,.8,.2,1); }
.news-card:hover .news-cover img { transform: scale(1.06); }
.news-cover-ph {
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(18, 102, 227, .1), rgba(11, 79, 192, .16));
}
.news-body { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 11px; flex: 1; }
.news-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.news-tag {
  font-size: 11px; font-weight: 700; color: var(--accent); letter-spacing: .06em;
  background: rgba(18, 102, 227, .09); padding: 4px 11px; border-radius: 999px;
}
.news-date { font-family: var(--font-d); font-size: 12px; color: var(--ink-dim); }
.news-card h3 { font-size: 17px; font-weight: 800; line-height: 1.55; }
.news-card p { font-size: 13.5px; color: var(--ink-dim); line-height: 1.8; font-weight: 300; }
.news-more { margin-top: auto; padding-top: 6px; font-size: 13px; font-weight: 700; color: var(--accent); }
.news-empty {
  grid-column: 1 / -1; text-align: center; color: var(--ink-dim);
  font-size: 14px; padding: 48px 0; margin: 0;
  border: 1px dashed var(--line); border-radius: var(--radius);
}

/* ---------------- 经营品牌（固定网格） ---------------- */
.brand-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 18px; }
.brand-card {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 9px; min-height: 136px; padding: 18px 14px 16px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 6px 20px rgba(20, 50, 110, .05);
  transition: transform .4s cubic-bezier(.2,.8,.2,1), box-shadow .4s, border-color .4s;
}
.brand-card:hover {
  transform: translateY(-6px); border-color: rgba(18, 102, 227, .45);
  box-shadow: 0 20px 44px rgba(18, 102, 227, .14);
}
.brand-card img {
  max-width: 100%; max-height: 62px; width: auto; height: auto; object-fit: contain; display: block;
}
.brand-ph {
  display: flex; align-items: center; justify-content: center;
  width: 100%; height: 62px; font-size: 15px; font-weight: 800; color: var(--ink-dim);
}
.brand-name { font-size: 14px; font-weight: 700; color: var(--ink); text-align: center; }
.brand-cat {
  font-size: 11.5px; color: var(--accent); letter-spacing: .06em;
  background: rgba(18, 102, 227, .08); padding: 3px 10px; border-radius: 999px;
}
.brand-empty {
  grid-column: 1 / -1; text-align: center; color: var(--ink-dim); font-size: 14px;
  padding: 44px 16px; margin: 0; border: 1px dashed var(--line); border-radius: var(--radius);
}

/* ---------------- 客户案例 ---------------- */
.cases { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); max-width: none; }
.cases > * { max-width: 1280px; margin-left: auto; margin-right: auto; }
.case-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(24px, 3.2vw, 46px); align-items: start; }
.case-table { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: 0 6px 20px rgba(20, 50, 110, .05); }
.case-row {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 12px; align-items: center;
  padding: 18px 20px; border-bottom: 1px solid var(--line); font-size: 14.5px;
  transition: background .3s, padding-left .3s;
}
.case-row:last-child { border-bottom: none; }
.case-row:not(.case-head):hover { background: var(--accent-soft); padding-left: 28px; }
.case-head { font-size: 12px; letter-spacing: .18em; color: var(--ink-dim); font-weight: 700; background: var(--bg-3); border-bottom: 1px solid rgba(18, 102, 227, .3); }
.case-metric { font-weight: 700; }
.case-before { color: var(--ink-dim); }
.case-after { color: var(--accent); font-weight: 800; font-family: var(--font-d); }
.case-quote {
  position: sticky; top: 110px; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: clamp(28px, 3vw, 44px);
  line-height: 2.05; font-size: 15px; color: var(--ink); font-weight: 300;
  box-shadow: var(--shadow);
}
.quote-mark { margin-bottom: 18px; opacity: .9; }
.case-quote footer { margin-top: 22px; font-size: 13px; color: var(--accent); font-weight: 700; letter-spacing: .06em; }

/* ---------------- 招商 ---------------- */
.invest { position: relative; overflow: hidden; max-width: none; text-align: center; }
.invest-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 70% at 20% 30%, rgba(18, 102, 227, .5), transparent 62%),
    radial-gradient(ellipse 55% 60% at 82% 75%, rgba(11, 79, 192, .55), transparent 58%),
    linear-gradient(135deg, #0b3d91, #1266e3 55%, #0b4fc0);
}
.invest > *:not(.invest-bg) { position: relative; z-index: 1; }
.invest .invest-bg { position: absolute; inset: 0; z-index: 0; }
.invest .section-label { color: var(--accent-2); }
.invest-items {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
  max-width: 900px; margin: 0 auto;
}
.invest-item {
  display: flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 500;
  border: 1px solid rgba(255, 255, 255, .28); background: rgba(255, 255, 255, .1); backdrop-filter: blur(6px);
  color: #fff; padding: 9px 18px; border-radius: 999px; transition: border-color .3s, transform .3s, background .3s;
}
.invest-item:hover { border-color: var(--accent-2); transform: translateY(-3px); background: rgba(255, 255, 255, .16); }
.invest-item::before { content: ''; width: 7px; height: 7px; background: var(--accent-2); border-radius: 50%; flex: none; }
.invest-cta { margin-top: 24px; }

/* ---------------- 招商：供应商 Logo 墙 ---------------- */
.partner-wall {
  max-width: 1100px; margin: 26px auto 0; padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .18);
}
.partner-head {
  display: flex; align-items: baseline; justify-content: center; gap: 10px;
  flex-wrap: wrap; margin-bottom: 12px;
}
.partner-label {
  font-family: var(--font-d); font-size: 14px; font-weight: 900;
  letter-spacing: .2em; color: #fff; text-indent: .22em;
}
.partner-sub { font-size: 12px; color: rgba(255, 255, 255, .62); }
.partner-logos {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 11px;
}
.partner-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 7px; min-height: 118px; padding: 14px 12px 12px;
  background: rgba(255, 255, 255, .94); border: 1px solid rgba(255, 255, 255, .5);
  border-radius: 12px; text-decoration: none; color: var(--ink);
  box-shadow: 0 6px 18px rgba(4, 30, 80, .14);
  transition: transform .35s cubic-bezier(.2,.8,.3,1), box-shadow .35s, border-color .35s;
}
.partner-item:hover {
  transform: translateY(-6px); box-shadow: 0 16px 34px rgba(4, 30, 80, .24);
  border-color: var(--accent-2);
}
.partner-item img {
  max-width: 100%; max-height: 50px; width: auto; object-fit: contain;
  transition: transform .35s;
}
.partner-item:hover img { transform: scale(1.05); }
.partner-name {
  font-size: 11.5px; font-weight: 600; color: var(--ink-dim); text-align: center;
  line-height: 1.4; word-break: break-word;
}
.partner-ph { font-size: 15px; font-weight: 800; color: var(--ink); }
.partner-empty {
  margin: 0; padding: 26px 12px; border-radius: 14px;
  border: 1px dashed rgba(255, 255, 255, .32);
  color: rgba(255, 255, 255, .6); font-size: 13.5px;
}
.invest .btn-primary { background: var(--accent-2); color: #4a3400; box-shadow: 0 10px 30px rgba(255, 184, 0, .4); }
.invest .btn-primary:hover { background: #ffc832; }

/* ---------------- 联系 ---------------- */
.contact-layout { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(24px, 3.8vw, 54px); }
.ci-item {
  display: flex; flex-direction: column; gap: 5px; padding: 15px 0;
  border-bottom: 1px solid var(--line); transition: padding-left .3s;
}
.ci-item:hover { padding-left: 10px; }
.ci-label { font-size: 12px; letter-spacing: .22em; color: var(--ink-dim); }
.ci-value { font-size: clamp(17px, 2vw, 22px); font-weight: 700; }
a.ci-value:hover { color: var(--accent); }
.ci-phone { font-family: var(--font-d); font-size: clamp(24px, 3vw, 34px); color: var(--accent); font-weight: 900; letter-spacing: .02em; }

/* ---------------- 联系方式：二维码 ---------------- */
.qr-block { padding-top: 18px; }
.qr-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.qr-title { font-size: 12px; letter-spacing: .22em; color: var(--ink-dim); }
.qr-sub { font-size: 12px; color: var(--ink-dim); opacity: .7; }
.qr-list {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 156px));
  gap: 16px; justify-content: start;
}
.qr-card {
  padding: 15px 13px 17px; border: 1px solid var(--line);
  border-radius: var(--radius); background: var(--card);
  display: flex; flex-direction: column; align-items: center; gap: 9px;
  text-align: center; transition: border-color .3s, transform .3s, box-shadow .3s;
}
.qr-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: 0 12px 26px rgba(20, 50, 110, .1); }
.qr-img {
  width: 100%; max-width: 130px; height: auto; aspect-ratio: 1 / 1;
  object-fit: contain; display: block; background: #fff; border-radius: 10px;
}
.qr-ph {
  display: flex; align-items: center; justify-content: center;
  border: 1px dashed var(--line); color: var(--ink-dim);
  font-size: 13px; letter-spacing: .1em;
}
.qr-name { font-size: 14.5px; font-weight: 700; color: var(--ink); }
.qr-desc { font-size: 11.5px; color: var(--ink-dim); line-height: 1.45; }
.contact-form {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(20px, 2.2vw, 30px); box-shadow: var(--shadow);
  display: flex; flex-direction: column;
}
.form-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; margin-bottom: 18px;
}
.contact-form h3 { font-size: 20px; font-weight: 900; margin: 0; }
.form-sub { font-size: 12.5px; color: var(--ink-dim); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.form-field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.form-row .form-field { margin-bottom: 0; }
.form-label { font-size: 13px; font-weight: 600; color: var(--ink); letter-spacing: .04em; }
.form-label i { color: var(--accent); font-style: normal; }
.contact-form input, .contact-form textarea {
  width: 100%; background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 12px; padding: 13px 16px; color: var(--ink); font-size: 14.5px;
  font-family: inherit; outline: none; transition: border-color .3s, box-shadow .3s; resize: vertical;
}
.contact-form textarea { min-height: 156px; line-height: 1.7; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(18, 102, 227, .14); }
.contact-form ::placeholder { color: rgba(20, 33, 58, .35); }
.contact-form .form-submit {
  margin-top: 4px; width: 100%; justify-content: center; min-height: 52px; font-size: 15px;
}
.contact-form .form-submit:active { transform: translateY(1px) scale(.995); }
.contact-form .form-submit:disabled { opacity: .6; cursor: default; }
.form-tip { margin-top: 14px; font-size: 13.5px; min-height: 20px; }
.form-tip.ok { color: #12a05c; }
.form-tip.err { color: #e04545; }

/* ---------------- 页脚 ---------------- */
.footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 40px clamp(20px, 5vw, 64px) 22px; }
.footer-inner {
  max-width: 1280px; margin: 0 auto; display: flex; justify-content: space-between;
  align-items: center; gap: 24px; flex-wrap: wrap; padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand img { height: 56px; width: auto; }
.footer-brand p { font-size: 12.5px; color: var(--ink-dim); margin-top: 4px; letter-spacing: .05em; }
.footer-links { display: flex; gap: 26px; }
.footer-links a { font-size: 13.5px; color: var(--ink-dim); transition: color .3s; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  max-width: 1280px; margin: 22px auto 0; display: flex; justify-content: space-between;
  gap: 12px; flex-wrap: wrap; font-size: 12.5px; color: rgba(20, 33, 58, .45);
}
.footer-bottom .icp-link { color: inherit; text-decoration: none; transition: color .2s; }
.footer-bottom .icp-link:hover { color: #1266e3; }

/* ---------------- Toast ---------------- */
.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translate(-50%, 80px);
  background: #17233d; color: #fff; border: 1px solid rgba(255, 255, 255, .14);
  padding: 13px 26px; border-radius: 999px; font-size: 14px; z-index: 500;
  opacity: 0; transition: transform .45s cubic-bezier(.2,.8,.2,1), opacity .45s;
  box-shadow: 0 14px 40px rgba(20, 50, 110, .3); pointer-events: none;
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }
.toast.ok { border-color: rgba(61, 220, 132, .6); }
.toast.err { border-color: rgba(255, 90, 90, .6); }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1200px) {
  /* 导航项变多后，中屏收紧间距，避免换行或溢出 */
  .nav { padding: 14px 24px; }
  .nav-links { gap: 14px; }
  .nav-links a { font-size: 13px; }
  .nav-cta { padding: 8px 16px; font-size: 12.5px; }
  .logo-text { font-size: 17px; }
}
@media (max-width: 1024px) {
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-cell:nth-child(3) { border-left: none; }
  .stat-cell { border-top: 1px solid var(--line); }
  .stat-cell:nth-child(-n+2) { border-top: none; }
  .about-body, .case-layout, .contact-layout, .culture-body { grid-template-columns: 1fr; }
  .case-quote { position: static; }
  .solutions-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .strength-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .about-badge { right: 10px; }
}
@media (max-width: 720px) {
  .nav { padding: 14px 18px; }
  .nav-logo img { height: 34px; }
  .logo-text { font-size: 17px; }
  .nav-links, .nav-cta { display: none; }
  .nav-burger {
    display: flex; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px;
  }
  .nav-burger span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s, opacity .3s; }
  .nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-burger.open span:nth-child(2) { opacity: 0; }
  .nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-links.mobile-open {
    display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(255, 255, 255, .97); backdrop-filter: blur(16px); padding: 22px 28px 28px; gap: 18px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(20, 50, 110, .1);
  }
  .cat-grid, .strength-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .brand-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .brand-card { min-height: 124px; padding: 18px 12px; }
  .culture-gallery { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .form-row { grid-template-columns: 1fr; }
  .qr-list { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .qr-card { padding: 12px 9px 14px; }
  .qr-img { max-width: 100%; border-radius: 8px; }
  .case-row { grid-template-columns: 1.1fr .8fr 1fr; font-size: 12.5px; padding: 15px 10px; }
  .hero-scroll-hint { display: none; }
  .marquee-item { font-size: 12px; gap: 32px; }
  .marquee-track { gap: 32px; }
  .about-points { grid-template-columns: 1fr; }
  .solutions-grid, .cat-grid, .strength-grid { gap: 14px; }
  .solution-card, .strength-card { padding: 26px 20px; }
}
@media (max-width: 480px) {
  .hero { padding: 84px 16px 96px; }
  .hero-tag { font-size: 11px; padding: 8px 14px; letter-spacing: .1em; margin-bottom: 22px; }
  .hero-title { font-size: 38px; }
  .hero-sub { font-size: 14px; line-height: 1.9; margin-top: 20px; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; margin-top: 32px; }
  .hero-actions .btn { justify-content: center; padding: 14px 24px; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-cell { padding: 26px 10px; }
  .stat-value { font-size: 32px; }
  .stat-label { font-size: 13px; }
  .stat-desc { font-size: 11px; }
  .section { padding: 46px 18px; }
  .section-title { font-size: 28px; }
  .section-desc { font-size: 14px; }
  .about-heading { font-size: 24px; }
  .about-badge { padding: 12px 16px; border-radius: 12px; bottom: 16px; }
  .badge-num { font-size: 18px; }
  .badge-label { font-size: 10px; }
  .cat-card { aspect-ratio: 16/8; }
  .partner-wall { margin-top: 22px; padding-top: 16px; }
  .partner-head { gap: 8px; margin-bottom: 12px; }
  .partner-label { font-size: 13px; letter-spacing: .16em; text-indent: .16em; }
  .partner-sub { font-size: 12px; }
  .partner-logos { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 10px; }
  .partner-item { min-height: 86px; padding: 11px 7px; gap: 6px; border-radius: 9px; }
  .partner-item img { max-height: 34px; }
  .partner-name { font-size: 10.5px; }
  .qr-block { padding-top: 20px; }
  .qr-list { gap: 9px; }
  .qr-card { padding: 10px 6px 12px; border-radius: 10px; }
  .qr-name { font-size: 12.5px; }
  .qr-desc { font-size: 10.5px; }
  .case-row { grid-template-columns: 1fr .7fr .8fr; font-size: 11.5px; padding: 13px 8px; gap: 8px; }
  .case-head { font-size: 10.5px; }
  .case-quote { padding: 22px; font-size: 14px; }
  .invest-item { font-size: 13px; padding: 11px 18px; width: 100%; justify-content: flex-start; }
  .invest-items { flex-direction: column; align-items: stretch; }
  .ci-value { font-size: 16px; }
  .ci-phone { font-size: 24px; }
  .contact-form { padding: 20px; }
  .contact-form textarea { min-height: 132px; }
  .contact-form .form-submit { min-height: 50px; }
  .footer { padding: 36px 18px 20px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .btn-lg { font-size: 15px; padding: 15px 30px; }
  .about-slogan { font-size: 13px; }
  /* iOS Safari 对小于 16px 的输入框聚焦时会强制缩放，这里避免 */
  .contact-form input, .contact-form textarea { font-size: 16px; }
  .nav-cta { display: none; }
}