/* =========================================================
   台州盛竞密封件有限公司 · 企业站样式表
   纯手写 CSS，无任何外部依赖（无 CDN / 无 Google Fonts）
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --brand:#1B5BFF;
  --brand-600:#1550E6;
  --brand-700:#0F3FBF;
  --brand-050:#EEF3FF;
  --accent:#00C2A8;
  --accent-050:#E6FAF7;

  --ink:#0B1220;
  --ink-2:#25314A;
  --muted:#5A6577;
  --muted-2:#8593A8;

  --line:#E6EAF2;
  --line-2:#D6DCE8;
  --bg:#FFFFFF;
  --bg-soft:#F6F8FC;

  --radius-s:10px;
  --radius:14px;
  --radius-l:22px;

  --shadow-s:0 1px 2px rgba(11,18,32,.04), 0 4px 12px rgba(11,18,32,.05);
  --shadow:0 10px 30px rgba(11,18,32,.08);
  --shadow-l:0 24px 60px rgba(11,18,32,.12);

  --maxw:1180px;
  --header-h:72px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",
         "Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,
         Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",Consolas,"Courier New",monospace;
}

/* ---------- 2. 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand)}
img,svg{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(27,91,255,.4);outline-offset:2px;border-radius:4px}

/* ---------- 3. 布局工具 ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--soft{background:var(--bg-soft)}
.section--tight{padding:64px 0}
.grid{display:grid;gap:24px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.center{text-align:center}
.mt-24{margin-top:24px}
.mt-40{margin-top:40px}
.mt-56{margin-top:56px}
.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}

/* ---------- 4. 章节标题 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-050);color:var(--brand-600);
  font-size:13px;font-weight:600;letter-spacing:.06em;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.section-head{max-width:720px;margin:0 auto 52px}
.section-head--left{margin-left:0}
.section-title{font-size:clamp(26px,3.4vw,40px)}
.section-desc{margin-top:16px;color:var(--muted);font-size:17px}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;
  font-weight:600;font-size:15px;line-height:1;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),
             background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(27,91,255,.28)}
.btn--primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px);
  box-shadow:0 14px 28px rgba(27,91,255,.34)}
.btn--ghost{background:#fff;color:var(--ink);border:1px solid var(--line-2)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn--light{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn--light:hover{background:rgba(255,255,255,.22);color:#fff}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand)}
.link-arrow::after{content:"→";transition:transform .2s var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- 6. 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 4px 20px rgba(11,18,32,.05)}
.header-inner{height:var(--header-h);display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink);
  letter-spacing:-.02em}
.brand img,.brand svg{width:32px;height:32px}
.brand-sub{font-size:11px;font-weight:500;color:var(--muted-2);letter-spacing:.16em;text-transform:uppercase}
.nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;padding:10px 16px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav a:hover{color:var(--brand);background:var(--brand-050)}
.nav a[aria-current="page"]{color:var(--brand);font-weight:600}
.nav a[aria-current="page"]::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-cta{display:flex;align-items:center;gap:12px;margin-left:12px}
.header-tel{display:flex;align-items:center;gap:8px;font-weight:600;font-size:14px;color:var(--ink)}
.header-tel svg{width:16px;height:16px;color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-2);
  align-items:center;justify-content:center;margin-left:auto;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;
  position:relative;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
  border-radius:2px;transition:transform .25s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 7. 首屏 Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 84px}
.hero::before,.hero::after{
  content:"";position:absolute;border-radius:50%;filter:blur(70px);z-index:0;pointer-events:none;
}
.hero::before{width:520px;height:520px;top:-220px;left:-140px;background:rgba(27,91,255,.16)}
.hero::after{width:460px;height:460px;top:-120px;right:-160px;background:rgba(0,194,168,.16)}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;
  gap:56px;align-items:center}
.hero h1{font-size:clamp(32px,4.6vw,54px);line-height:1.18;letter-spacing:-.02em}
.hero h1 .grad{background:linear-gradient(96deg,var(--brand) 8%,var(--accent) 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{margin-top:22px;font-size:18px;color:var(--muted);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px 32px;margin-top:38px;padding-top:26px;
  border-top:1px solid var(--line)}
.hero-meta li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.hero-meta svg{width:17px;height:17px;color:var(--accent);flex:none}

/* Hero 右侧视觉 */
.hero-visual{position:relative;min-height:400px}
.hv-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  box-shadow:var(--shadow-l);padding:22px;
}
.hv-main{position:relative;z-index:2;animation:float 7s ease-in-out infinite}
.hv-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.hv-title{display:flex;align-items:center;gap:10px;font-weight:600;font-size:14px;color:var(--ink)}
.hv-dot{width:9px;height:9px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px var(--accent-050)}
.hv-bars{display:flex;align-items:flex-end;gap:10px;height:132px;padding-bottom:6px}
.hv-bars i{flex:1;border-radius:8px 8px 4px 4px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(27,91,255,.25) 100%);
  transform-origin:bottom;animation:grow .9s var(--ease) backwards}
.hv-bars i:nth-child(1){height:38%;animation-delay:.05s}
.hv-bars i:nth-child(2){height:62%;animation-delay:.12s}
.hv-bars i:nth-child(3){height:46%;animation-delay:.19s}
.hv-bars i:nth-child(4){height:84%;animation-delay:.26s;background:linear-gradient(180deg,var(--accent),rgba(0,194,168,.25))}
.hv-bars i:nth-child(5){height:58%;animation-delay:.33s}
.hv-bars i:nth-child(6){height:96%;animation-delay:.4s}
.hv-foot{display:flex;justify-content:space-between;margin-top:14px;padding-top:14px;
  border-top:1px dashed var(--line-2);font-size:12px;color:var(--muted-2)}
.hv-rows{margin-top:16px;display:grid;gap:10px}
.hv-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.hv-row .bar{flex:1;height:7px;border-radius:99px;background:var(--bg-soft);overflow:hidden}
.hv-row .bar i{display:block;height:100%;border-radius:99px;background:var(--brand)}
.hv-row:nth-child(2) .bar i{background:var(--accent)}
.hv-badge{
  position:absolute;z-index:3;display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:var(--radius);background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow);font-size:13px;font-weight:600;color:var(--ink);
}
.hv-badge small{display:block;font-weight:500;color:var(--muted-2);font-size:11px}
.hv-badge--a{left:-26px;bottom:64px;animation:float 6s ease-in-out infinite .4s}
.hv-badge--b{right:-18px;top:-22px;animation:float 8s ease-in-out infinite .8s}
.hv-badge .ico{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand);flex:none}
.hv-badge--b .ico{background:var(--accent-050);color:var(--accent)}
.hv-badge .ico svg{width:18px;height:18px}

@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes grow{from{transform:scaleY(.05);opacity:.4}}

/* ---------- 8. 信任条 ---------- */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0;
  background:#fff}
.trust-inner{display:flex;align-items:center;gap:36px;flex-wrap:wrap;justify-content:center}
.trust-label{font-size:13px;color:var(--muted-2);letter-spacing:.1em}
.trust-list{display:flex;flex-wrap:wrap;gap:16px 40px;align-items:center}
.trust-list span{font-size:17px;font-weight:700;color:#B5BECC;letter-spacing:.02em;
  transition:color .25s var(--ease)}
.trust-list span:hover{color:var(--ink-2)}

/* ---------- 9. 卡片 ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:30px;box-shadow:var(--shadow-s);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
  position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#CFD9FF}
.card-ico{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;margin-bottom:20px;
  background:var(--brand-050);color:var(--brand);
}
.card-ico svg{width:26px;height:26px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px}
.card--accent .card-ico{background:var(--accent-050);color:#00A38D}
.card ul{margin-top:16px;display:grid;gap:9px}
.card ul li{position:relative;padding-left:22px;font-size:14.5px;color:var(--muted)}
.card ul li::before{
  content:"";position:absolute;left:0;top:.62em;width:9px;height:9px;border-radius:50%;
  background:var(--brand-050);border:2px solid var(--brand);
}
.card-tag{
  position:absolute;top:18px;right:18px;font-size:11px;font-weight:700;letter-spacing:.06em;
  padding:4px 10px;border-radius:99px;background:var(--accent-050);color:#00A38D;
}

/* ---------- 10. 数据统计 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden}
.stat{background:#fff;padding:36px 24px;text-align:center}
.stat-num{font-size:clamp(30px,3.6vw,44px);font-weight:800;color:var(--ink);
  letter-spacing:-.03em;line-height:1.1;font-variant-numeric:tabular-nums}
.stat-num .unit{font-size:.5em;font-weight:700;color:var(--brand);margin-left:2px}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted)}

/* ---------- 11. 流程时间线 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:step}
.step{position:relative;padding-top:58px}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:13px;
  display:grid;place-items:center;font-weight:800;font-size:15px;
  background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(27,91,255,.24);
}
.step:not(:last-child)::after{
  content:"";position:absolute;left:52px;top:22px;right:-14px;height:2px;
  background:repeating-linear-gradient(90deg,var(--line-2) 0 8px,transparent 8px 16px);
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- 12. 客户评价 ---------- */
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);padding:30px;
  box-shadow:var(--shadow-s);display:flex;flex-direction:column;gap:18px}
.quote-mark{font-size:44px;line-height:.7;color:var(--brand);opacity:.25;font-family:Georgia,serif;
  height:24px}
.quote p{font-size:15.5px;color:var(--ink-2)}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;
  border-top:1px solid var(--line)}
.avatar{width:42px;height:42px;border-radius:50%;flex:none;display:grid;place-items:center;
  font-weight:700;color:#fff;background:linear-gradient(135deg,var(--brand),var(--accent));font-size:15px}
.quote-who strong{display:block;font-size:14.5px;color:var(--ink)}
.quote-who span{font-size:12.5px;color:var(--muted-2)}

/* ---------- 13. 新闻 ---------- */
.news-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.news-tabs button{
  padding:9px 18px;border-radius:999px;border:1px solid var(--line-2);background:#fff;
  font-size:14px;font-weight:500;color:var(--muted);
  transition:all .2s var(--ease);
}
.news-tabs button:hover{border-color:var(--brand);color:var(--brand)}
.news-tabs button.is-active{background:var(--ink);border-color:var(--ink);color:#fff}
.news-list{display:grid;gap:16px}
.news-item{
  display:grid;grid-template-columns:120px 1fr auto;gap:26px;align-items:center;
  padding:24px 28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  transition:all .25s var(--ease);cursor:pointer;text-align:left;width:100%;
  box-shadow:var(--shadow-s);
}
.news-item:hover{border-color:#CFD9FF;transform:translateX(4px);box-shadow:var(--shadow)}
.news-date{font-size:13px;color:var(--muted-2);font-variant-numeric:tabular-nums}
.news-date strong{display:block;font-size:26px;color:var(--ink);font-weight:800;line-height:1.1}
.news-body h3{font-size:17px;margin-bottom:6px}
.news-body p{font-size:14.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;gap:14px;margin-top:10px;font-size:12.5px;color:var(--muted-2)}
.news-meta .pill{padding:2px 10px;border-radius:99px;background:var(--brand-050);color:var(--brand-600)}
.news-item .go{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-2);color:var(--muted);transition:all .25s var(--ease);flex:none}
.news-item:hover .go{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 14. CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:26px;padding:60px 56px;
  background:linear-gradient(120deg,#0B1220 0%,#12306E 55%,#0F5F73 100%);
  color:#fff;
}
.cta-band::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  right:-120px;top:-160px;background:radial-gradient(circle,rgba(0,194,168,.45),transparent 65%)}
.cta-band::after{content:"";position:absolute;inset:0;
  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:52px 52px;mask-image:linear-gradient(90deg,#000,transparent 78%)}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px)}
.cta-band p{color:rgba(255,255,255,.74);margin-top:12px;font-size:16px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 15. 内页 Hero ---------- */
.page-hero{position:relative;padding:64px 0 56px;background:var(--bg-soft);
  border-bottom:1px solid var(--line);overflow:hidden}
.page-hero::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  right:-160px;top:-200px;background:rgba(27,91,255,.10);filter:blur(60px)}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{font-size:clamp(28px,3.8vw,42px)}
.page-hero p{margin-top:16px;color:var(--muted);font-size:17px;max-width:640px}
.breadcrumb{display:flex;gap:8px;font-size:13.5px;color:var(--muted-2);margin-bottom:18px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span::before{content:"/";margin-right:8px;color:var(--line-2)}

/* ---------- 16. 关于我们 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.prose p+p{margin-top:16px}
.prose p{color:var(--muted);font-size:16px}
.prose strong{color:var(--ink)}
.fact-list{display:grid;gap:14px;margin-top:28px}
.fact{display:flex;gap:14px;align-items:flex-start}
.fact .k{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex:none;
  background:var(--brand-050);color:var(--brand)}
.fact .k svg{width:18px;height:18px}
.fact b{color:var(--ink);font-size:15px}
.fact p{font-size:14px;color:var(--muted)}
.photo-frame{border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-l);background:#fff}
.photo-frame .ph{aspect-ratio:4/3;display:grid;place-items:center;color:var(--muted-2);
  background:
    repeating-linear-gradient(45deg,#F6F8FC 0 14px,#EFF3FA 14px 28px);
  font-size:13px;letter-spacing:.1em}

/* 时间线 */
.timeline{position:relative;margin-top:20px;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--accent))}
.tl-item{position:relative;padding:0 0 34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-33px;top:6px;width:20px;height:20px;
  border-radius:50%;background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 5px #fff}
.tl-item:nth-child(2n)::before{border-color:var(--accent)}
.tl-year{font-weight:800;color:var(--brand);font-size:15px;letter-spacing:.04em}
.tl-item h3{font-size:17px;margin:6px 0 6px}
.tl-item p{font-size:14.5px;color:var(--muted)}

/* 团队 */
.member{text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:28px 20px;box-shadow:var(--shadow-s);transition:all .28s var(--ease)}
.member:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.member .face{width:82px;height:82px;border-radius:50%;margin:0 auto 16px;display:grid;
  place-items:center;font-size:26px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--accent))}
.member h3{font-size:17px}
.member .role{font-size:13px;color:var(--brand);font-weight:600;margin-top:4px}
.member p{font-size:13.5px;color:var(--muted);margin-top:12px}

/* 资质 */
.honor{display:flex;align-items:center;gap:14px;padding:20px 22px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-s)}
.honor .ico{width:40px;height:40px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:var(--accent-050);color:#00A38D}
.honor .ico svg{width:20px;height:20px}
.honor b{display:block;font-size:15px;color:var(--ink)}
.honor span{font-size:13px;color:var(--muted-2)}

/* ---------- 17. 定价 ---------- */
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:34px 30px;box-shadow:var(--shadow-s);display:flex;flex-direction:column;
  transition:all .28s var(--ease);position:relative}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.price-card--hot{border-color:var(--brand);box-shadow:0 20px 50px rgba(27,91,255,.16)}
.price-card--hot::before{
  content:"最受欢迎";position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  padding:5px 16px;border-radius:99px;background:var(--brand);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.06em;white-space:nowrap;
}
.price-card h3{font-size:18px}
.price-card .hint{font-size:13.5px;color:var(--muted-2);margin-top:6px}
.price{margin:20px 0 4px;font-size:36px;font-weight:800;color:var(--ink);letter-spacing:-.03em}
.price small{font-size:14px;font-weight:500;color:var(--muted);letter-spacing:0}
.price-card ul{margin:22px 0 26px;display:grid;gap:11px;flex:1}
.price-card ul li{position:relative;padding-left:26px;font-size:14.5px;color:var(--ink-2)}
.price-card ul li::before{
  content:"";position:absolute;left:0;top:.34em;width:16px;height:16px;border-radius:50%;
  background:var(--brand-050);
}
.price-card ul li::after{
  content:"";position:absolute;left:5px;top:.62em;width:6px;height:3px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
table.compare{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;font-size:14.5px}
table.compare th,table.compare td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}
table.compare thead th{background:var(--bg-soft);font-size:14px;color:var(--ink)}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare td:first-child{font-weight:600;color:var(--ink)}
table.compare .yes{color:#00A38D;font-weight:700}

/* ---------- 18. 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:32px;box-shadow:var(--shadow-s)}
.info-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line)}
.info-item:first-of-type{padding-top:0}
.info-item:last-child{border-bottom:0;padding-bottom:0}
.info-item .ico{width:42px;height:42px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand)}
.info-item .ico svg{width:20px;height:20px}
.info-item b{display:block;font-size:13px;color:var(--muted-2);font-weight:500}
.info-item strong{font-size:16px;color:var(--ink);display:block;margin-top:2px;
  word-break:break-all}
.info-item strong a:hover{color:var(--brand)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:34px;box-shadow:var(--shadow-s)}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field label .req{color:#E5484D;margin-left:2px}
.field input,.field textarea,.field select{
  width:100%;padding:13px 15px;border:1px solid var(--line-2);border-radius:var(--radius-s);
  background:#fff;font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:130px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:0;border-color:var(--brand);box-shadow:0 0 0 4px rgba(27,91,255,.12)}
.field .err{color:#E5484D;font-size:13px;margin-top:6px;display:none}
.field.is-invalid input,.field.is-invalid textarea{border-color:#E5484D}
.field.is-invalid .err{display:block}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-note{font-size:13px;color:var(--muted-2);margin-top:14px;line-height:1.7}
.form-ok{display:none;align-items:center;gap:10px;padding:14px 16px;border-radius:var(--radius-s);
  background:var(--accent-050);color:#007A69;font-size:14.5px;font-weight:600;margin-bottom:22px}
.form-ok.is-show{display:flex}
.form-ok svg{width:18px;height:18px;flex:none}
.map-box{aspect-ratio:16/7;border-radius:var(--radius-l);border:1px solid var(--line);
  display:grid;place-items:center;text-align:center;color:var(--muted-2);font-size:14px;
  background:
    linear-gradient(rgba(27,91,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(27,91,255,.05) 1px,transparent 1px),
    repeating-linear-gradient(45deg,#F6F8FC 0 18px,#EFF3FA 18px 36px);
  background-size:40px 40px,40px 40px,auto;padding:24px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:0 24px;box-shadow:var(--shadow-s);margin-bottom:14px;overflow:hidden}
.faq summary{padding:20px 0;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--brand);font-weight:400;transition:transform .25s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 22px;color:var(--muted);font-size:15px}

/* ---------- 19. 弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;
  padding:24px}
.modal.is-open{display:flex}
.modal-backdrop{position:absolute;inset:0;background:rgba(11,18,32,.55);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);animation:fade .25s var(--ease)}
.modal-panel{
  position:relative;z-index:1;width:100%;max-width:720px;max-height:82vh;overflow:auto;
  background:#fff;border-radius:var(--radius-l);box-shadow:var(--shadow-l);padding:40px;
  animation:pop .3s var(--ease);
}
.modal-panel h2{font-size:24px;padding-right:44px}
.modal-meta{display:flex;gap:14px;flex-wrap:wrap;margin:14px 0 22px;padding-bottom:20px;
  border-bottom:1px solid var(--line);font-size:13px;color:var(--muted-2)}
.modal-body p{color:var(--muted);font-size:15.5px}
.modal-body p+p{margin-top:14px}
.modal-close{
  position:absolute;top:22px;right:22px;width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;background:var(--bg-soft);color:var(--muted);
  transition:all .2s var(--ease);font-size:20px;line-height:1;
}
.modal-close:hover{background:var(--line);color:var(--ink)}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.98)}}
body.no-scroll{overflow:hidden}

/* ---------- 20. 页脚 ---------- */
.site-footer{background:#0B1220;color:rgba(255,255,255,.62);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1)}
.site-footer .brand{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.4)}
.footer-about{margin-top:18px;font-size:14px;line-height:1.9;max-width:320px}
.footer-social{display:flex;gap:12px;margin-top:22px}
.footer-social a{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,255,255,.07);color:rgba(255,255,255,.72);transition:all .22s var(--ease)}
.footer-social a:hover{background:var(--brand);color:#fff;transform:translateY(-3px)}
.footer-social svg{width:18px;height:18px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:20px;letter-spacing:.02em}
.footer-links{display:grid;gap:12px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-links a:hover{color:#fff}
.footer-contact{display:grid;gap:14px;font-size:14px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact svg{width:17px;height:17px;flex:none;margin-top:4px;color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:24px;
  flex-wrap:wrap;padding:24px 0 30px;font-size:13px;color:rgba(255,255,255,.42)}
.footer-bottom a:hover{color:#fff}
.footer-legal{display:flex;gap:18px;flex-wrap:wrap;align-items:center}

/* ---------- 21. 回到顶部 ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:80;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
  display:grid;place-items:center;color:var(--ink);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .28s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.to-top svg{width:20px;height:20px}

/* ---------- 22. 滚动入场动画 ---------- */
.reveal{opacity:0;transform:translateY(20px);
  transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
.reveal[data-delay="4"]{transition-delay:.32s}
.reveal[data-delay="5"]{transition-delay:.4s}

/* ---------- 23. 响应式 ---------- */
@media (max-width:1080px){
  .nav{display:none}
  .header-cta .header-tel{display:none}
  .nav-toggle{display:flex}
  .nav.is-open{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    position:absolute;left:0;right:0;top:var(--header-h);
    background:#fff;border-bottom:1px solid var(--line);
    padding:16px 20px 24px;box-shadow:0 20px 40px rgba(11,18,32,.1);
    margin-left:0;animation:fade .2s var(--ease);
  }
  .nav.is-open a{padding:14px 16px;font-size:16px;border-radius:10px}
  .nav.is-open a[aria-current="page"]::after{display:none}
  .hero-inner{grid-template-columns:1fr;gap:48px}
  .hero-lead{max-width:none}
  .hero-visual{max-width:520px;margin:0 auto;width:100%}
  .split,.contact-grid{grid-template-columns:1fr;gap:44px}
  .grid--4,.stats,.steps{grid-template-columns:repeat(2,1fr)}
  .step:not(:last-child)::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:720px){
  .container{padding:0 18px}
  .section{padding:64px 0}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .stats,.steps{grid-template-columns:1fr}
  .stats{gap:1px}
  .hero{padding:52px 0 64px}
  .hero-visual{min-height:auto}
  .hv-badge--a{left:-8px;bottom:-18px}
  .hv-badge--b{right:-6px;top:-16px}
  .card,.quote{padding:24px}
  .cta-band{padding:40px 26px;border-radius:20px}
  .news-item{grid-template-columns:1fr;gap:14px;padding:22px}
  .news-item .go{display:none}
  .news-date{display:flex;align-items:baseline;gap:10px}
  .news-date strong{font-size:18px}
  .form-row{grid-template-columns:1fr;gap:0}
  .form-card,.info-card,.modal-panel{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .to-top{right:16px;bottom:16px}
}

/* ---------- 24. 无障碍 / 打印 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}
@media print{
  .site-header,.to-top,.nav-toggle,.site-footer .footer-social,.cta-band{display:none}
  body{color:#000}
}

/* ---------- 25. 图标与补充组件 ---------- */
.ic{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;
  width:20px;height:20px;flex:none}
.brand-name{display:flex;flex-direction:column;line-height:1.15;font-size:17px;font-weight:800;
  letter-spacing:-.01em}
.news-empty{padding:56px 24px;text-align:center;color:var(--muted-2);background:#fff;
  border:1px dashed var(--line-2);border-radius:var(--radius);font-size:15px;display:none}
.news-empty.is-show{display:block}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;padding:12px 20px;background:var(--brand);
  color:#fff;border-radius:0 0 10px 0;font-weight:600}
.skip-link:focus{left:0;color:#fff}
/* ---------- 26. 细节补充 ---------- */
.news-full{display:none}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius)}
.table-wrap table{min-width:640px}
.hv-sub{font-size:12px;color:var(--muted-2)}
.hv-row:nth-child(1) .bar i{width:88%}
.hv-row:nth-child(2) .bar i{width:72%}
.hv-badge .ico{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex:none}
.hero-text{position:relative;z-index:1}
@media (max-width:1080px){
  .header-cta{margin-left:auto}
  .nav-toggle{margin-left:12px}
}
/* ---------- 27. 锚点与细节 ---------- */
[id]{scroll-margin-top:calc(var(--header-h) + 24px)}
.info-card h2{font-size:20px}

/* ---------- 28. 密封件行业专用组件 ---------- */
.kit-card{text-align:center}
.kit-num{font-size:clamp(30px,3.4vw,42px);font-weight:800;color:var(--brand);
  letter-spacing:-.03em;line-height:1;font-variant-numeric:tabular-nums}
.kit-num span{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px;letter-spacing:0}
.kit-card h3{margin-top:14px}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tags span{padding:8px 16px;border-radius:99px;background:#fff;border:1px solid var(--line-2);
  font-size:14px;color:var(--ink-2)}
.tags--light span{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.24);color:#fff}
.hero .tags{margin-top:26px}
.step-ico{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-050);color:var(--brand);margin-bottom:14px}
.step-ico svg{width:22px;height:22px}
.steps--ico .step{padding-top:0}
.steps--ico .step::before,.steps--ico .step::after{display:none}
/* ---------- 29. 首屏套盒视觉 ---------- */
.kit-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;padding:8px 0 2px}
.kit-grid i{display:block;aspect-ratio:1;border-radius:50%;border:3px solid var(--line-2)}
.kit-grid i:nth-child(4n+1){border-color:var(--brand)}
.kit-grid i:nth-child(4n+3){border-color:var(--accent)}
.kit-grid i:nth-child(3n){border-width:4.5px}
.kit-grid i:nth-child(5n){border-color:#8FA4C9}
/* ---------- 30. 产品实拍图 ---------- */
.hv-photo{position:relative;z-index:2;border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-l);background:#fff}
.hv-photo img{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;display:block}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.shot{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  overflow:hidden;box-shadow:var(--shadow-s);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.shot:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.shot img{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;display:block;background:var(--bg-soft)}
.shot figcaption{padding:13px 16px;font-size:13.5px;color:var(--muted);
  border-top:1px solid var(--line);line-height:1.6}
.photo-frame img{width:100%;height:auto;display:block;aspect-ratio:4/3;object-fit:cover}
@media (max-width:1080px){.gallery{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){.gallery{grid-template-columns:1fr}}