/* ============================================================
   三门健龙体育 · 复刻版样式
   视觉基线对齐原站（300.cn 模板）：深灰导航 + 全屏灰首屏 + 全宽红搜索条
   + 大号英文背景字 + 居中细边框卡片 + 深灰页脚
   ============================================================ */
:root{
  --red:#e60012;
  --red-2:#c4000f;
  --ink:#2b2b2b;
  --ink-2:#4a4a4a;
  --text:#333;
  --gray:#767676;
  --gray-2:#9a9a9a;
  --line:#e6e6e6;
  --bg:#ffffff;
  --bg-2:#f5f5f5;
  --bg-3:#ebebeb;
  --max:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:hidden}
body{
  margin:0;font-family:var(--font);color:var(--text);background:var(--bg);
  font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s}
h1,h2,h3,h4{margin:0;font-weight:400;line-height:1.4}
p{margin:0 0 1em}
ul,ol{margin:0;padding-left:1.2em}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}

/* ---------- 顶部导航 ---------- */
.topnav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(233,233,233,.94);backdrop-filter:blur(8px);
  color:#fff;height:72px;
}
.topnav .wrap{display:flex;align-items:center;justify-content:space-between;height:100%;gap:20px}
.logo{display:flex;align-items:center;gap:9px;color:#2b2b2b;font-size:16px;letter-spacing:.02em}
.logo .mk{width:30px;height:30px;flex:0 0 auto;border-radius:50%;overflow:hidden;background:#fff}
.logo .mk img{width:100%;height:100%;object-fit:contain}
.logo b{font-weight:500;font-size:13.5px;letter-spacing:.02em}
.menu{display:none;align-items:center;gap:2px;font-size:14.5px}
.menu>li{position:relative;list-style:none}
.menu>li>a{display:block;padding:0 15px;line-height:72px;color:#3a3a3a;white-space:nowrap;font-size:14.5px}
.menu>li>a:hover,.menu>li.active>a{color:var(--red)}
.menu>li.active>a{position:relative}
.menu>li.has-sub>a::after{content:"▾";font-size:9px;margin-left:5px;opacity:.6;vertical-align:1px}
.menu>li.active>a::after{content:"";position:absolute;left:16px;right:16px;bottom:20px;height:2px;background:var(--red)}
.sub{position:absolute;top:72px;left:0;min-width:150px;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.12);
  padding:8px 0;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.18s}
.menu>li:hover .sub{opacity:1;visibility:visible;transform:none}
.sub a{display:block;padding:9px 20px;color:var(--ink-2);font-size:14px}
.sub a:hover{background:var(--bg-2);color:var(--red)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-search{color:#555;display:grid;place-items:center;width:36px;height:36px}
.nav-search svg{width:19px;height:19px}
.en{width:34px;height:34px;border-radius:50%;background:var(--red);color:#fff;display:grid;place-items:center;
  font-size:12px;font-weight:600;letter-spacing:.02em}
.burger{display:grid;place-items:center;width:40px;height:40px;background:none;border:0;cursor:pointer;color:#333}
.burger svg{width:22px;height:22px}
.drawer{display:none;position:fixed;top:72px;left:0;right:0;bottom:0;background:#fff;z-index:99;overflow-y:auto;padding:8px 0 40px}
.drawer.open{display:block}
.drawer a{display:block;padding:14px 24px;border-bottom:1px solid var(--line);color:var(--ink-2)}
.drawer .dsub{padding-left:40px;font-size:14px;color:var(--gray)}
@media(min-width:1080px){.menu{display:flex}.burger{display:none}.drawer{display:none !important}}

/* ---------- 首屏 ---------- */
.hero{position:relative;height:78vh;min-height:520px;max-height:760px;display:flex;align-items:center;background:#b9b9b9;overflow:hidden;margin-top:72px}
.hero .bg{position:absolute;inset:0;background:#9aa3ad url('/assets/img/hero.jpg') center/cover no-repeat;}
.hero .veil{position:absolute;inset:0;background:linear-gradient(95deg,rgba(0,0,0,.62) 0%,rgba(0,0,0,.42) 45%,rgba(0,0,0,.18) 100%);}
.hero .wrap{position:relative;z-index:2;padding-top:60px;padding-bottom:60px}
.hero h1{color:#fff;font-size:clamp(1.9rem,4.4vw,3.1rem);font-weight:400;letter-spacing:.02em;line-height:1.5;text-shadow:0 2px 18px rgba(0,0,0,.14)}
.hero .sub-line{color:#f2f2f2;font-size:clamp(1rem,2vw,1.22rem);margin:14px 0 34px;letter-spacing:.06em;opacity:.95}
.hero .ghost{display:inline-block;padding:13px 40px;border:1px solid rgba(255,255,255,.85);color:#fff;
  font-size:14.5px;letter-spacing:.16em;transition:.2s}
.hero .ghost:hover{background:#fff;color:var(--ink)}
.scroll-cue{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);color:rgba(255,255,255,.85);
  font-size:11px;letter-spacing:.24em;text-transform:uppercase;z-index:2;display:flex;flex-direction:column;align-items:center;gap:8px}
.scroll-cue::after{content:"";width:1px;height:26px;background:rgba(255,255,255,.7);animation:drop 1.8s infinite}
@keyframes drop{0%{opacity:.2;transform:scaleY(.3)}50%{opacity:1}100%{opacity:.2;transform:scaleY(1)}}

/* ---------- 红色搜索条 ---------- */
.searchbar{background:var(--red);padding:16px 0}
.searchbar form{display:flex;align-items:center;max-width:900px;margin:0 auto;background:#fff;border-radius:3px;padding:4px;gap:4px}
.searchbar select{border:0;background:#f4f4f4;padding:10px 12px;font:inherit;font-size:13.5px;color:#666;outline:none;max-width:170px}
.searchbar option{color:#333}
.searchbar .divider{width:1px;height:22px;background:#e2e2e2}
.searchbar input{flex:1;border:0;padding:11px 14px;font:inherit;font-size:14px;outline:none;min-width:0}
.searchbar button{background:var(--red);color:#fff;border:0;border-radius:3px;padding:10px 34px;font:inherit;font-size:14px;cursor:pointer;letter-spacing:.06em;margin-right:2px}
.searchbar button:hover{background:var(--red-2)}

/* ---------- 区块标题 ---------- */
.sec{padding:64px 0}
.sec.tight{padding:54px 0}
.sec.bg2{background:var(--bg-2)}
.sec-head{position:relative;text-align:center;margin-bottom:44px}
.sec-head .bgword{position:absolute;left:50%;top:-22px;transform:translateX(-50%);
  font-size:clamp(3.6rem,9.8vw,8.2rem);font-weight:700;color:#f4f4f4;white-space:nowrap;
  letter-spacing:.05em;z-index:0;user-select:none;line-height:1}
.sec-head .inner{position:relative;z-index:1}
.sec-head h2{font-size:clamp(1.3rem,2.5vw,1.7rem);color:var(--ink);letter-spacing:.06em}
.sec-head .slash{display:block;width:2px;height:26px;background:var(--red);margin:12px auto 0;transform:rotate(20deg)}
.sec-head p{color:var(--gray);font-size:14px;margin:16px 0 0;letter-spacing:.02em}

/* ---------- 分类三圆 ---------- */
.cats{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:760px){.cats{grid-template-columns:repeat(3,1fr);gap:24px}}
.cat{text-align:center}
.cat .disc{width:96px;height:96px;border-radius:50%;margin:0 auto 20px;display:grid;place-items:center;
  background:radial-gradient(120% 120% at 32% 26%,#fff 0%,#f7f7f7 45%,#eeeee8 100%);
  box-shadow:0 10px 26px rgba(0,0,0,.06),inset 0 1px 0 #fff}
.cat:nth-child(1) .disc{background:radial-gradient(120% 120% at 32% 26%,#fff 0%,#fdf1e3 55%,#f8e2c8 100%)}
.cat:nth-child(2) .disc{background:radial-gradient(120% 120% at 32% 26%,#fff 0%,#fde9ed 55%,#f9d3dc 100%)}
.cat:nth-child(3) .disc{background:radial-gradient(120% 120% at 32% 26%,#fff 0%,#e9f6ed 55%,#d6eedd 100%)}
.cat .disc img{width:66px;height:66px;object-fit:contain;mix-blend-mode:multiply}
.cat h3{font-size:1.06rem;color:var(--ink);margin-bottom:6px}
.cat p{color:var(--gray-2);font-size:13.5px;margin:0}

/* ---------- 产品卡 ---------- */
.pgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
@media(min-width:820px){.pgrid{grid-template-columns:repeat(4,1fr);gap:12px}}
.pcard{background:#fff;border:1px solid #ededed;text-align:center;padding:0 0 34px;transition:.22s}
.pcard:hover{box-shadow:0 14px 34px rgba(0,0,0,.09);transform:translateY(-3px)}
.pcard .ph{aspect-ratio:4/5;display:grid;place-items:center;background:#fff;border-bottom:0}
.pcard .ph img{width:100%;height:100%;object-fit:contain;padding:26px 20px;box-sizing:border-box}
.pcard .model{font-size:1.25rem;color:#2b2b2b;letter-spacing:.04em;margin:6px 0 8px;font-weight:500}
.pcard .meta{font-size:12.5px;color:#a0a0a0;margin-bottom:20px;min-height:18px}
.pcard .btn-more{display:inline-block;border:1px solid #dcdcdc;padding:10px 0;width:66%;font-size:13px;color:#8a8a8a;transition:.2s}
.pcard .btn-more:hover{border-color:var(--red);color:var(--red)}

/* ---------- 数据条 ---------- */
.stats{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats .wrap{display:grid;grid-template-columns:repeat(2,1fr)}
@media(min-width:760px){.stats .wrap{grid-template-columns:repeat(4,1fr)}}
.stats .it{padding:38px 10px;text-align:center;border-right:1px solid var(--line)}
.stats .it:last-child{border-right:0}
@media(max-width:759px){.stats .it:nth-child(2n){border-right:0}.stats .it:nth-child(-n+2){border-bottom:1px solid var(--line)}}
.stats .v{font-size:clamp(1.5rem,3.2vw,2.05rem);color:#2b2b2b;font-weight:600;letter-spacing:.01em;line-height:1.1}
.stats .l{font-size:13px;color:var(--gray);margin-top:8px;letter-spacing:.04em}

/* ---------- 关于块 ---------- */
.about-grid{display:grid;gap:36px;align-items:start}
@media(min-width:900px){.about-grid{grid-template-columns:1.15fr .85fr;gap:56px}}
.about-text p{color:#4a4a4a;font-size:14.5px;line-height:2;margin-bottom:1.1em}
.about-text .lead{color:var(--ink);font-size:15.5px;line-height:1.95}
.about-text h3{color:var(--ink);font-size:1.05rem;margin:26px 0 10px;padding-left:12px;border-left:3px solid var(--red)}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mini{border:1px solid var(--line);padding:18px;text-align:center}
.mini .n{color:var(--red);font-size:1.5rem;font-weight:700}
.mini .t{color:var(--gray);font-size:12.5px;margin-top:4px}

/* ---------- 图片组 ---------- */
.photo-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(min-width:820px){.photo-grid{grid-template-columns:repeat(4,1fr)}}
.photo-grid figure{margin:0;background:#fff;border:1px solid var(--line);overflow:hidden}
.photo-grid img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s}
.photo-grid figure:hover img{transform:scale(1.04)}
.photo-grid figcaption{font-size:12.5px;color:var(--gray);padding:10px 14px;text-align:center;border-top:1px solid #f0f0f0}
.about-photo{margin:0 0 16px;border:1px solid var(--line);overflow:hidden}
.about-photo img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- 荣誉 ---------- */
.honor-list{display:grid;gap:12px;grid-template-columns:1fr}
@media(min-width:760px){.honor-list{grid-template-columns:1fr 1fr}}
.honor-list li{list-style:none;border:1px solid var(--line);padding:16px 20px;display:flex;gap:14px;align-items:baseline;background:#fff}
.honor-list .y{color:var(--red);font-size:12.5px;font-weight:600;flex:0 0 auto}
.honor-list .n{font-size:14px;color:var(--ink-2)}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:760px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.ncard{background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;transition:.22s}
.ncard:hover{box-shadow:0 12px 30px rgba(0,0,0,.08)}
.ncard .thumb{aspect-ratio:16/10;background:linear-gradient(135deg,#dfe6ee,#c7d2de);display:grid;place-items:center;position:relative;overflow:hidden}
.ncard .thumb img{width:100%;height:100%;object-fit:cover}
.ncard .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(0,0,0,.06))}
.ncard .bd{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column}
.ncard .cat{font-size:12px;color:var(--red);letter-spacing:.06em;margin-bottom:8px}
.ncard h3{font-size:14.5px;color:var(--ink);line-height:1.6;margin-bottom:10px}
.ncard .sm{font-size:13px;color:var(--gray-2);line-height:1.7;flex:1}
.ncard .dt{font-size:12px;color:#b5b5b5;margin-top:14px}

/* ---------- 列表页 ---------- */
.crumb{background:var(--bg-2);border-bottom:1px solid var(--line);font-size:13px;color:var(--gray)}
.crumb .wrap{padding:13px 24px}
.crumb a{color:var(--gray)}
.crumb a:hover{color:var(--red)}
.crumb span{margin:0 8px;color:#cfcfcf}
.pagehead{padding:56px 0 8px;text-align:center}
.pagehead h1{font-size:clamp(1.5rem,3vw,2rem);color:var(--ink);letter-spacing:.06em}
.pagehead .bigword{color:#eeeeee;font-size:clamp(2rem,5vw,3rem);font-weight:700;letter-spacing:.06em;line-height:1;margin-bottom:-10px;user-select:none}
.pagehead p{color:var(--gray);font-size:14px;margin-top:14px}

.filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:34px 0 40px}
.filters a{border:1px solid var(--line);padding:9px 22px;font-size:13.5px;color:var(--gray);background:#fff}
.filters a:hover,.filters a.on{border-color:var(--red);color:var(--red)}

/* ---------- 产品详情 ---------- */
.pd{display:grid;gap:40px}
@media(min-width:900px){.pd{grid-template-columns:1fr 1fr;gap:56px;align-items:start}}
.pd .gallery{background:radial-gradient(120% 120% at 50% 40%,#fafafa,#f0f0f0);border:1px solid var(--line);padding:40px;display:grid;place-items:center}
.pd .gallery img{width:100%;max-width:460px;object-fit:contain}
.pd h1{font-size:clamp(1.5rem,3vw,2rem);color:var(--ink);margin-bottom:8px}
.pd .series-tag{display:inline-block;background:var(--bg-2);color:var(--gray);font-size:12.5px;padding:5px 12px;margin-bottom:18px}
.pd .desc{color:#4a4a4a;font-size:14.5px;line-height:1.95;margin-bottom:26px}
.pd table{width:100%;border-collapse:collapse;font-size:14px;margin-bottom:26px}
.pd th,.pd td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line)}
.pd th{background:var(--bg-2);color:var(--ink-2);font-weight:400;width:110px;white-space:nowrap}
.pd .actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-red{display:inline-block;background:var(--red);color:#fff;padding:13px 34px;font-size:14.5px;letter-spacing:.06em}
.btn-red:hover{background:var(--red-2);color:#fff}
.btn-line{display:inline-block;border:1px solid #ccc;color:var(--ink-2);padding:12px 34px;font-size:14.5px}
.btn-line:hover{border-color:var(--red);color:var(--red)}

/* ---------- 表单 ---------- */
.form-box{background:#fff;border:1px solid var(--line);padding:32px}
.form-box h2{font-size:1.15rem;color:var(--ink);margin-bottom:6px}
.form-box .hint{font-size:13px;color:var(--gray-2);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px}
.field .req{color:var(--red)}
.field input,.field select,.field textarea{
  width:100%;font:inherit;font-size:14.5px;padding:11px 14px;border:1px solid #ddd;background:#fff;color:var(--text);border-radius:2px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--red)}
.field textarea{min-height:110px;resize:vertical}
.row2{display:grid;gap:16px}
@media(min-width:600px){.row2{grid-template-columns:1fr 1fr}}
.form-box .note{font-size:12.5px;color:var(--gray-2);margin:14px 0 0;line-height:1.7}
.form-box .note a{color:var(--red);text-decoration:underline}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;gap:40px}
@media(min-width:900px){.contact-grid{grid-template-columns:.9fr 1.1fr;gap:56px}}
.clist{list-style:none;padding:0;margin:0;display:grid;gap:22px}
.clist li{display:grid;grid-template-columns:20px 1fr;gap:14px;align-items:start;font-size:14.5px;color:#4a4a4a}
.clist svg{width:18px;height:18px;color:var(--red);margin-top:4px}
.clist .k{display:block;font-size:12.5px;color:var(--gray-2);margin-bottom:3px}
.clist a:hover{color:var(--red)}

/* ---------- 页脚 ---------- */
footer{background:#333;color:#a8a8a8;font-size:13.5px;padding:56px 0 0}
footer a{color:#a8a8a8}
footer a:hover{color:#fff}
footer h4{color:#fff;font-size:14px;letter-spacing:.06em;margin-bottom:16px;font-weight:500}
.fgrid{display:grid;gap:34px;padding-bottom:38px}
@media(min-width:820px){.fgrid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}}
.fbrand .logo{color:#fff;margin-bottom:16px}
.fbrand p{color:#9a9a9a;font-size:13px;line-height:1.9;margin-bottom:8px}
.flinks{list-style:none;padding:0;margin:0;display:grid;gap:10px;font-size:13.5px}
.flinks a{color:#9a9a9a}
.fbot{border-top:1px solid #444;padding:20px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#8a8a8a}
.fbot .legal{display:flex;gap:16px;flex-wrap:wrap}
.fbot a{color:#9a9a9a}

/* ---------- 政策正文 ---------- */
.prose h2{font-size:1.1rem;color:var(--ink);margin:2em 0 .7em;padding-left:12px;border-left:3px solid var(--red)}
.prose h2:first-child{margin-top:0}
.prose p,.prose li{color:#4a4a4a;font-size:14.5px;line-height:1.95}
.prose ul{margin-bottom:1.1em}

/* ---------- 浮动客服 ---------- */
.float{position:fixed;right:18px;bottom:96px;z-index:80;display:grid;gap:8px}
.float a{width:44px;height:44px;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;display:grid;place-items:center;transition:.2s}
.float a:hover{background:var(--red)}
.float svg{width:19px;height:19px}

/* ---------- Cookie 提示 ---------- */
.cookie{position:fixed;left:0;right:0;bottom:0;z-index:90;background:rgba(255,255,255,.98);border-top:1px solid var(--line);
  padding:18px 24px;display:none;gap:16px;align-items:center;justify-content:center;flex-wrap:wrap;font-size:13px;color:var(--gray)}
.cookie.show{display:flex}
.cookie a{color:var(--ink);text-decoration:underline}
.cookie button{background:var(--red);color:#fff;border:0;padding:9px 22px;font:inherit;font-size:13px;cursor:pointer}

@media(max-width:600px){
  .sec-head .bgword{font-size:1.9rem;top:2px;letter-spacing:.02em}
  .pagehead .bigword{font-size:1.6rem;margin-bottom:-4px}
  .sec{padding:48px 0}
  .sec-head{margin-bottom:34px}
  .hero{height:auto;min-height:440px;max-height:520px;padding:40px 0}
  .searchbar button{padding:0 26px}
  .pd .gallery{padding:24px}
}
@media print{.topnav,.float,.searchbar,.cookie{display:none}body{font-size:12pt}}