/* ============================================================
   求卓科技 · 官网前台样式
   简约大气 / 白底为主 / 科技蓝渐变点缀
   ============================================================ */

:root {
  --ink: #0b1220;
  --ink-2: #1e293b;
  --body: #475569;
  --muted: #7b8798;
  --line: #e8ecf3;
  --line-2: #f1f4f9;
  --bg: #ffffff;
  --soft: #f7f9fc;
  --soft-2: #eef3fb;
  --brand: #1d4ed8;
  --brand-d: #16389c;
  --cyan: #0891b2;
  --accent: #ea8a0b;
  --deep: #081428;
  --grad: linear-gradient(120deg, #1d4ed8 0%, #2563eb 42%, #06b6d4 100%);
  --grad-soft: linear-gradient(120deg, #eff4ff 0%, #ecfbff 100%);
  --shadow-s: 0 1px 2px rgba(11, 18, 32, .05), 0 2px 8px rgba(11, 18, 32, .04);
  --shadow-m: 0 4px 12px rgba(11, 18, 32, .06), 0 12px 32px rgba(11, 18, 32, .06);
  --shadow-l: 0 12px 28px rgba(16, 42, 90, .1), 0 32px 64px rgba(16, 42, 90, .08);
  --r-s: 8px;
  --r: 14px;
  --r-l: 20px;
  --max: 1200px;
  --nav-h: 68px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--body);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 { color: var(--ink); margin: 0; font-weight: 700; line-height: 1.35; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
a { color: var(--brand); text-decoration: none; transition: color .2s; }
a:hover { color: var(--brand-d); }
img { max-width: 100%; display: block; }
ul, ol { margin: 0 0 1em; padding-left: 1.3em; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.center { text-align: center; }
.mono { font-family: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, monospace; }

/* ---------------------------- 顶部导航 ---------------------------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: var(--nav-h);
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-in { max-width: var(--max); margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; gap: 28px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 9px; object-fit: cover;
  display: block; flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(29, 78, 216, .28);
}
.logo-txt { display: flex; flex-direction: column; line-height: 1.15; }
.logo-txt b { color: var(--ink); font-size: 16.5px; font-weight: 700; letter-spacing: .5px; }
.logo-txt span { font-size: 9.5px; color: var(--muted); letter-spacing: 1.4px; text-transform: uppercase; }

.menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.menu a {
  padding: 8px 14px; border-radius: 8px; color: var(--ink-2); font-size: 14.5px; font-weight: 500;
  transition: background .18s, color .18s;
}
.menu a:hover { background: var(--soft-2); color: var(--brand); }
.menu a.on { color: var(--brand); background: var(--soft-2); font-weight: 600; }
.nav-cta {
  margin-left: 10px; padding: 9px 18px !important; border-radius: 999px !important;
  background: var(--grad) !important; color: #fff !important; font-weight: 600 !important;
  box-shadow: 0 4px 14px rgba(29, 78, 216, .26);
}
.nav-cta:hover { color: #fff !important; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(29, 78, 216, .34); }
.burger { display: none; margin-left: auto; width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 9px; background: #fff; cursor: pointer; }
.burger i { display: block; width: 17px; height: 1.6px; background: var(--ink-2); margin: 3.6px auto; border-radius: 2px; transition: .25s; }

/* ---------------------------- 按钮 ---------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  padding: 12px 26px; border-radius: 999px; font-size: 14.5px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; transition: .22s; white-space: nowrap;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 6px 18px rgba(29, 78, 216, .26); }
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 10px 26px rgba(29, 78, 216, .34); }
.btn-ghost { background: rgba(255, 255, 255, .1); color: #fff; border-color: rgba(255, 255, 255, .38); }
.btn-ghost:hover { background: rgba(255, 255, 255, .2); color: #fff; }
.btn-line { background: #fff; color: var(--ink); border-color: var(--line); box-shadow: var(--shadow-s); }
.btn-line:hover { border-color: var(--brand); color: var(--brand); }
.btn-sm { padding: 9px 18px; font-size: 13.5px; }

/* ---------------------------- Hero ---------------------------- */
.hero { position: relative; overflow: hidden; background: var(--deep); color: #fff; }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(900px 460px at 12% -8%, rgba(37, 99, 235, .5), transparent 62%),
    radial-gradient(760px 420px at 88% 8%, rgba(6, 182, 212, .34), transparent 60%),
    radial-gradient(620px 420px at 60% 108%, rgba(29, 78, 216, .3), transparent 62%);
}
.hero::after {
  content: ''; position: absolute; inset: 0; opacity: .5;
  background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(900px 560px at 50% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(900px 560px at 50% 30%, #000 20%, transparent 78%);
}
.hero-in { position: relative; z-index: 2; max-width: var(--max); margin: 0 auto; padding: 92px 24px 100px; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.badge-ai {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 15px 6px 11px;
  border: 1px solid rgba(255, 255, 255, .22); border-radius: 999px;
  background: rgba(255, 255, 255, .08); font-size: 12.5px; letter-spacing: .3px; color: #d7e6ff;
  margin-bottom: 22px;
}
.dot-live { width: 7px; height: 7px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 0 rgba(52, 211, 153, .7); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); } 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); } }

.hero h1 { color: #fff; font-size: 46px; line-height: 1.22; letter-spacing: -.02em; margin-bottom: 20px; }
.hero h1 em { font-style: normal; background: linear-gradient(92deg, #7dd3fc, #a5f3fc 45%, #bfdbfe); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 16px; color: #b8c9e4; max-width: 620px; margin-bottom: 30px; line-height: 1.85; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-kpi { display: flex; gap: 40px; margin-top: 46px; padding-top: 30px; border-top: 1px solid rgba(255, 255, 255, .12); flex-wrap: wrap; }
.hero-kpi b { display: block; font-size: 27px; color: #fff; font-weight: 700; letter-spacing: -.5px; }
.hero-kpi span { font-size: 12.5px; color: #8fa5c4; }

/* AI 节点图 */
.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; overflow: visible; }
.node-pulse { animation: nodeFade 3.2s ease-in-out infinite; }
@keyframes nodeFade { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }
.link-flow { stroke-dasharray: 5 7; animation: flow 1.6s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -24; } }
.orbit { animation: spin 26s linear infinite; transform-origin: 210px 200px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------------------------- 通用区块 ---------------------------- */
.sec { padding: 84px 0; }
.sec-soft { background: var(--soft); }
.sec-head { max-width: 760px; margin: 0 auto 48px; text-align: center; }
.sec-tag {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: var(--brand); margin-bottom: 12px;
}
.sec-head h2 { font-size: 33px; margin-bottom: 14px; letter-spacing: -.02em; }
.sec-head p { font-size: 15.5px; color: var(--muted); margin: 0; }
.sec-head.left { text-align: left; margin-left: 0; }

.grid { display: grid; gap: 24px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

/* 能力卡 */
.cap {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 30px 26px;
  transition: .26s; position: relative; overflow: hidden;
}
.cap::after { content: ''; position: absolute; left: 0; top: 0; height: 3px; width: 0; background: var(--grad); transition: width .32s; }
.cap:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); border-color: #dbe4f3; }
.cap:hover::after { width: 100%; }
.cap-ico { width: 46px; height: 46px; border-radius: 12px; background: var(--grad-soft); display: grid; place-items: center; font-size: 22px; margin-bottom: 18px; border: 1px solid #e3ecfb; }
.cap h3 { font-size: 17px; margin-bottom: 9px; }
.cap p { font-size: 13.8px; color: var(--muted); margin: 0; line-height: 1.75; }

/* 产品卡 */
.pcard {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-l); overflow: hidden; transition: .26s; height: 100%;
}
.pcard:hover { transform: translateY(-5px); box-shadow: var(--shadow-l); border-color: #d6e0f2; }
.pcard-cover { aspect-ratio: 16/9; background: var(--grad-soft); position: relative; overflow: hidden; display: grid; place-items: center; }
.pcard-cover img { width: 100%; height: 100%; object-fit: cover; }
.pcard-cover .ph { font-size: 46px; opacity: .82; }
.pcard-cover::after {
  content: ''; position: absolute; inset: 0; opacity: .55;
  background-image: linear-gradient(rgba(29, 78, 216, .07) 1px, transparent 1px), linear-gradient(90deg, rgba(29, 78, 216, .07) 1px, transparent 1px);
  background-size: 26px 26px;
}
.pcard-cover img + ::after { display: none; }
.pcard-b { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.pcard-b h3 { font-size: 18.5px; margin-bottom: 6px; }
.pcard-tl { font-size: 13px; color: var(--brand); font-weight: 600; margin-bottom: 12px; }
.pcard-b p { font-size: 13.8px; color: var(--muted); flex: 1; margin-bottom: 16px; }
.chips { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 16px; }
.chip { font-size: 11.5px; padding: 3px 10px; border-radius: 999px; background: var(--soft-2); color: #3b5b9e; border: 1px solid #e0e9f8; }
.more { font-size: 13.5px; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: 6px; }
.more:hover { gap: 10px; }

/* 文章卡 */
.acard { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; transition: .24s; height: 100%; }
.acard:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); }
.acard-cover { aspect-ratio: 16/9; overflow: hidden; background: var(--grad-soft); display: grid; place-items: center; position: relative; }
.acard-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.acard:hover .acard-cover img { transform: scale(1.04); }
.acard-cover .ph { font-size: 34px; opacity: .5; }
.acard-b { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.acard-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.tagpill { font-size: 11.5px; padding: 2px 9px; border-radius: 5px; background: #eef4ff; color: var(--brand); font-weight: 600; }
.acard-b h3 { font-size: 16.5px; line-height: 1.5; margin-bottom: 9px; }
.acard-b h3 a { color: var(--ink); }
.acard-b h3 a:hover { color: var(--brand); }
.acard-b p { font-size: 13.5px; color: var(--muted); margin: 0 0 14px; flex: 1; }

/* 新闻列表行 */
.nrow { display: flex; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.nrow:last-child { border-bottom: 0; }
.nrow-date { flex-shrink: 0; width: 78px; text-align: center; padding-top: 3px; }
.nrow-date b { display: block; font-size: 25px; color: var(--ink); line-height: 1; font-weight: 700; }
.nrow-date span { font-size: 11.5px; color: var(--muted); }
.nrow-body h3 { font-size: 17px; margin-bottom: 7px; }
.nrow-body h3 a { color: var(--ink); }
.nrow-body h3 a:hover { color: var(--brand); }
.nrow-body p { font-size: 13.6px; color: var(--muted); margin: 0; }

/* ---------------------------- 页面头 banner ---------------------------- */
.phead { background: var(--deep); color: #fff; position: relative; overflow: hidden; }
.phead::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(780px 380px at 18% -20%, rgba(37, 99, 235, .45), transparent 60%),
    radial-gradient(640px 340px at 84% 10%, rgba(6, 182, 212, .3), transparent 58%);
}
.phead::after {
  content: ''; position: absolute; inset: 0; opacity: .38;
  background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 48px 48px;
}
.phead-in { position: relative; z-index: 2; max-width: var(--max); margin: 0 auto; padding: 58px 24px 62px; }
.phead h1 { color: #fff; font-size: 33px; margin-bottom: 10px; letter-spacing: -.02em; }
.phead p { color: #a9bedd; font-size: 14.8px; margin: 0; max-width: 660px; }
.crumb { font-size: 12.5px; color: #8ba4c8; margin-bottom: 16px; }
.crumb a { color: #b9cdea; }
.crumb a:hover { color: #fff; }

/* ---------------------------- 筛选 ---------------------------- */
.filters { display: flex; gap: 9px; flex-wrap: wrap; margin-bottom: 34px; }
.filters a { padding: 7px 17px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: 13.5px; color: var(--ink-2); }
.filters a:hover { border-color: var(--brand); color: var(--brand); }
.filters a.on { background: var(--grad); color: #fff; border-color: transparent; font-weight: 600; }

/* ---------------------------- 文章正文 ---------------------------- */
.article { max-width: 800px; margin: 0 auto; }
.article-h { border-bottom: 1px solid var(--line); padding-bottom: 26px; margin-bottom: 32px; }
.article-h h1 { font-size: 30px; line-height: 1.4; margin-bottom: 16px; }
.article-meta { display: flex; gap: 16px; font-size: 13px; color: var(--muted); flex-wrap: wrap; align-items: center; }
.article-cover { border-radius: var(--r); overflow: hidden; margin-bottom: 30px; border: 1px solid var(--line); }
.article-lead { font-size: 15.5px; color: var(--ink-2); background: var(--soft); border-left: 3px solid var(--brand); padding: 18px 22px; border-radius: 0 var(--r-s) var(--r-s) 0; margin-bottom: 30px; }
.prose { font-size: 15.4px; line-height: 1.95; color: #334155; }
.prose p { margin-bottom: 1.25em; }
.prose ul { padding-left: 0; list-style: none; margin-bottom: 1.4em; }
.prose ul li { position: relative; padding-left: 22px; margin-bottom: .6em; }
.prose ul li::before { content: ''; position: absolute; left: 4px; top: 12px; width: 6px; height: 6px; border-radius: 50%; background: var(--grad); }
.prose strong { color: var(--ink); }
.pager { display: flex; justify-content: space-between; gap: 16px; margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--line); font-size: 13.8px; flex-wrap: wrap; }
.pager span { color: var(--muted); }

/* 分页 */
.pagination { display: flex; gap: 7px; justify-content: center; margin-top: 44px; flex-wrap: wrap; }
.pagination a, .pagination span {
  min-width: 38px; height: 38px; display: grid; place-items: center; padding: 0 12px;
  border: 1px solid var(--line); border-radius: 9px; font-size: 13.5px; background: #fff; color: var(--ink-2);
}
.pagination a:hover { border-color: var(--brand); color: var(--brand); }
.pagination .cur { background: var(--grad); color: #fff; border-color: transparent; font-weight: 600; }
.pagination .off { color: #cbd5e1; }

/* ---------------------------- 关于我们 ---------------------------- */
.about-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: start; }
.tl { position: relative; padding-left: 26px; }
.tl::before { content: ''; position: absolute; left: 5px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(#1d4ed8, #06b6d4, transparent); }
.tl-item { position: relative; padding-bottom: 26px; }
.tl-item::before { content: ''; position: absolute; left: -26px; top: 7px; width: 12px; height: 12px; border-radius: 50%; background: #fff; border: 2.5px solid var(--brand); }
.tl-item b { display: block; color: var(--ink); font-size: 15.5px; }
.tl-item time { font-size: 12.5px; color: var(--brand); font-weight: 600; letter-spacing: .5px; }
.tl-item p { font-size: 13.6px; color: var(--muted); margin: 5px 0 0; }

.value-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 26px; }
.value-card h3 { font-size: 16.5px; margin-bottom: 8px; display: flex; align-items: center; gap: 9px; }
.value-card p { font-size: 13.6px; color: var(--muted); margin: 0; }

/* ---------------------------- 联系 / 表单 ---------------------------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: start; }
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 30px; box-shadow: var(--shadow-s); }
.info-row { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px dashed var(--line); }
.info-row:last-child { border-bottom: 0; padding-bottom: 0; }
.info-row .ic { width: 38px; height: 38px; flex-shrink: 0; border-radius: 10px; background: var(--grad-soft); display: grid; place-items: center; font-size: 17px; border: 1px solid #e4edfc; }
.info-row b { display: block; font-size: 12.5px; color: var(--muted); font-weight: 500; }
.info-row span { color: var(--ink); font-size: 14.6px; font-weight: 500; }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 32px; box-shadow: var(--shadow-m); }
.f-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13.2px; color: var(--ink-2); font-weight: 600; margin-bottom: 7px; }
.field label .req { color: #dc2626; margin-left: 2px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 11px 14px; border: 1px solid #dde4ef; border-radius: 10px;
  font-size: 14.2px; font-family: inherit; color: var(--ink); background: #fcfdff; transition: .18s;
}
.field textarea { resize: vertical; min-height: 118px; line-height: 1.7; }
.field input:focus, .field textarea:focus, .field select:focus { outline: 0; border-color: var(--brand); background: #fff; box-shadow: 0 0 0 3px rgba(29, 78, 216, .1); }
.field .hint { font-size: 12px; color: var(--muted); margin-top: 6px; }
.check { display: flex; gap: 9px; align-items: flex-start; font-size: 13px; color: var(--body); margin-bottom: 20px; }
.check input { width: 15px; height: 15px; margin-top: 3px; flex-shrink: 0; accent-color: var(--brand); }

.alert { padding: 13px 17px; border-radius: 10px; font-size: 13.6px; margin-bottom: 20px; border: 1px solid; }
.alert-ok { background: #f0fdf4; border-color: #bbf7d0; color: #15803d; }
.alert-err { background: #fef2f2; border-color: #fecaca; color: #b91c1c; }
.alert ul { margin: 6px 0 0; padding-left: 18px; }

/* ---------------------------- CTA ---------------------------- */
.cta { background: var(--deep); color: #fff; position: relative; overflow: hidden; }
.cta::before { content: ''; position: absolute; inset: 0; background: radial-gradient(700px 340px at 50% -30%, rgba(37, 99, 235, .5), transparent 62%), radial-gradient(500px 300px at 88% 110%, rgba(6, 182, 212, .3), transparent 60%); }
.cta-in { position: relative; z-index: 2; max-width: var(--max); margin: 0 auto; padding: 68px 24px; display: flex; align-items: center; justify-content: space-between; gap: 34px; flex-wrap: wrap; }
.cta h2 { color: #fff; font-size: 27px; margin-bottom: 8px; }
.cta p { color: #a9bedd; margin: 0; font-size: 14.5px; }

/* ---------------------------- 页脚 ---------------------------- */
.foot { background: #060f1e; color: #8ba0bd; font-size: 13.4px; padding: 58px 0 0; }
.foot-top { max-width: var(--max); margin: 0 auto; padding: 0 24px 44px; display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; }
.foot h4 { color: #fff; font-size: 14px; margin-bottom: 16px; font-weight: 600; letter-spacing: .3px; }
.foot a { color: #8ba0bd; display: block; padding: 5px 0; }
.foot a:hover { color: #fff; }
.foot .flogo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.foot .flogo .logo-mark { box-shadow: none; }
.foot .flogo b { color: #fff; font-size: 16.5px; }
.foot-desc { max-width: 300px; line-height: 1.85; margin-bottom: 18px; }
.foot-ct li { list-style: none; padding: 5px 0; }
.foot-ct { padding: 0; margin: 0; }
.foot-bottom { border-top: 1px solid rgba(255, 255, 255, .08); }
.foot-bottom-in { max-width: var(--max); margin: 0 auto; padding: 22px 24px 30px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12.6px; color: #6f85a3; }
.beian { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }
.beian a { display: inline-flex; align-items: center; gap: 6px; padding: 0; color: #6f85a3; }
.beian a:hover { color: #b9cdea; }
.police-ico { width: 14px; height: 14px; opacity: .7; }

/* ---------------------------- 404 ---------------------------- */
.nf { text-align: center; padding: 110px 24px; }
.nf b { font-size: 88px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 800; letter-spacing: -3px; display: block; line-height: 1; }
.nf h1 { font-size: 25px; margin: 18px 0 10px; }
.nf p { color: var(--muted); margin-bottom: 28px; }

/* ---------------------------- 动效 ---------------------------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s cubic-bezier(.22, 1, .36, 1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------------------------- 响应式 ---------------------------- */
@media (max-width: 1024px) {
  .hero-in { grid-template-columns: 1fr; gap: 40px; padding: 66px 24px 74px; }
  .hero-art { max-width: 480px; }
  .hero h1 { font-size: 38px; }
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .foot-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 780px) {
  .burger { display: block; }
  .menu {
    position: fixed; top: var(--nav-h); left: 0; right: 0; background: #fff; flex-direction: column;
    align-items: stretch; padding: 12px 18px 20px; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-m); display: none; margin: 0; max-height: calc(100vh - var(--nav-h)); overflow: auto;
  }
  .menu.open { display: flex; }
  .menu a { padding: 12px 14px; }
  .nav-cta { margin: 10px 0 0; text-align: center; }
  .hero h1 { font-size: 30px; }
  .hero p.lead { font-size: 15px; }
  .hero-kpi { gap: 26px; }
  .hero-kpi b { font-size: 22px; }
  .sec { padding: 56px 0; }
  .sec-head h2 { font-size: 25px; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  .f-grid { grid-template-columns: 1fr; gap: 0; }
  .article-h h1 { font-size: 23px; }
  .phead h1 { font-size: 25px; }
  .foot-top { grid-template-columns: 1fr; }
  .form-card, .info-card { padding: 22px; }
  .nrow { gap: 14px; }
  .nrow-date { width: 62px; }
  .nrow-date b { font-size: 21px; }
  .cta-in { padding: 48px 24px; }
  .cta h2 { font-size: 22px; }
}

@media print {
  .nav, .foot, .cta, .btn { display: none; }
}

/* ===================== 公司荣誉 / 资质证书 ===================== */
.honor-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.honor-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
  cursor: pointer;
}
.honor-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.honor-card img {
  width: 100%;
  height: 320px;
  object-fit: contain;
  background: #fafbfc;
  display: block;
}
.honor-info {
  padding: 12px 14px 14px;
  border-top: 1px solid var(--line);
}
.honor-info b {
  display: block;
  font-size: 13.5px;
  color: var(--ink);
  margin-bottom: 3px;
}
.honor-info span {
  display: block;
  font-size: 12.2px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .honor-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .honor-card img { height: 260px; }
}
@media (max-width: 520px) {
  .honor-grid { grid-template-columns: 1fr; gap: 16px; }
  .honor-card img { height: 300px; }
}

/* ===================== 产品中心：分类分组 ===================== */
.cat-sec { border-top: 1px solid var(--line); padding-top: 6px; }
.cat-sec:first-of-type { border-top: none; }
.cat-head { display: flex; align-items: flex-start; gap: 18px; }
.cat-no {
  flex: 0 0 auto;
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--grad); color: #fff;
  font-weight: 800; font-size: 20px; line-height: 1;
  display: grid; place-items: center;
  box-shadow: var(--shadow-m);
  font-feature-settings: "tnum";
}
.cat-hd-txt { padding-top: 2px; }
.cat-hd-txt .sec-tag { display: inline-block; margin-bottom: 7px; }
.cat-hd-txt h2 { margin: 0 0 7px; }
.cat-desc { color: var(--muted); font-size: 14.5px; margin: 0; max-width: 660px; line-height: 1.6; }

@media (max-width: 640px) {
  .cat-head { gap: 12px; }
  .cat-no { width: 42px; height: 42px; font-size: 17px; border-radius: 11px; }
}