/* ============================================================
   添轩生物科技 · 前台基础样式
   黑白简约 · 东方中国风（与最初全栈版视觉体系完全对齐）
   主题变量由 index.php 内联注入 :root（--background 等规格变量名）
   ============================================================ */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --background:#ffffff;
  --foreground:#1a1a1a;
  --primary:#141414;
  --primary-foreground:#ffffff;
  --secondary:#f5f5f5;
  --muted:#f0f0f0;
  --muted-foreground:#808080;
  --accent:#8b0000;
  --border:#e0e0e0;
  --ink-light:#b3b3b3;
  --paper:#fbf9f4;
  --seal-red:#8b0000;
  --radius:0px;
  --footer-bg:#141414;
  --footer-text:#f5f5f5;
  --footer-accent:#8b0000;
  --card-bg:#ffffff;
  /* 兼容别名 */
  --tx-primary:var(--primary);
  --tx-accent:var(--seal-red);
  --tx-bg:var(--background);
  --tx-text:var(--foreground);
  --tx-footer-bg:var(--footer-bg);
  --tx-footer-text:var(--footer-text);
  --tx-footer-accent:var(--footer-accent);
  --font-serif:"Songti SC","SimSun","Source Han Serif CN","Noto Serif CJK SC",ui-serif,Georgia,Cambria,"Times New Roman",Times,serif;
  --font-sans:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Tahoma","PingFang SC","Microsoft YaHei","Arial","Hiragino Sans GB",sans-serif;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);background:var(--background);color:var(--foreground);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none;transition:color .25s}
img{max-width:100%;display:block}
.container{width:min(1152px,92%);margin:0 auto}
.maxw{width:100%;margin:0 auto;padding-left:clamp(16px,3vw,56px);padding-right:clamp(16px,3vw,56px);box-sizing:border-box}
.muted{color:var(--muted-foreground)}
.center{text-align:center}
.rich{line-height:1.9}
.rich img{border-radius:4px;margin:12px 0}
.rich h1,.rich h2,.rich h3{margin:18px 0 10px;font-family:var(--font-serif);font-weight:600}
.rich p{margin:8px 0}
.rich ul,.rich ol{margin:8px 0 8px 22px}
.noimg{background:var(--muted);display:flex;align-items:center;justify-content:center;color:var(--muted-foreground);font-size:13px;letter-spacing:2px}

/* ---------- 东方元素 ---------- */
/* 印章 */
.seal-stamp{display:inline-flex;align-items:center;justify-content:center;border:2px solid var(--seal-red);color:var(--seal-red);background:rgba(139,0,0,.05);padding:2px 8px;font-family:var(--font-serif);font-size:12px;letter-spacing:2px;transform:rotate(-2.5deg);position:relative;animation:seal-sway 6s ease-in-out infinite}
.seal-stamp::before{content:'';position:absolute;inset:3px;border:1px solid rgba(139,0,0,.35);pointer-events:none}
@keyframes seal-sway{0%,100%{transform:rotate(-2.5deg)}50%{transform:rotate(1.5deg)}}
.seal-stamp-in{animation:seal-stamp-in .6s cubic-bezier(.22,1,.36,1) both}
@keyframes seal-stamp-in{0%{opacity:0;transform:rotate(-8deg) scale(1.6)}100%{opacity:1;transform:rotate(-2.5deg) scale(1)}}
/* 渐变分割线 */
.ink-divider{position:relative;height:1px;margin:28px auto;background:linear-gradient(90deg,transparent,var(--primary),transparent);border:0}
.ink-divider::before,.ink-divider::after{content:'';position:absolute;top:50%;width:6px;height:6px;border-radius:50%;background:var(--primary);transform:translateY(-50%)}
.ink-divider::before{left:calc(50% - 40px)}
.ink-divider::after{right:calc(50% - 40px)}
/* 水墨噪点纹理 */
.ink-noise{position:absolute;inset:0;opacity:.04;pointer-events:none;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");animation:noise-shift 20s linear infinite}
@keyframes noise-shift{0%{background-position:0 0}100%{background-position:200px 200px}}
/* 墨晕漂浮层 */
.ink-float-layer-1,.ink-float-layer-2,.ink-float-layer-3{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;pointer-events:none}
.ink-float-layer-1{width:340px;height:340px;left:-80px;top:-60px;background:rgba(255,255,255,.06);animation:ink-float 12s ease-in-out infinite}
.ink-float-layer-2{width:260px;height:260px;right:-40px;bottom:-40px;background:rgba(139,0,0,.05);animation:ink-float 15s ease-in-out infinite reverse}
.ink-float-layer-3{width:180px;height:180px;left:40%;top:20%;background:rgba(255,255,255,.04);animation:ink-float 18s ease-in-out infinite}
@keyframes ink-float{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,-30px)}}
/* 竖排文字 */
.writing-vertical{writing-mode:vertical-rl;letter-spacing:.5em;font-family:var(--font-serif);color:inherit;opacity:.8}
/* 笔触书写动画 */
.ink-brush-draw{display:inline-block;height:2px;width:100%;background:currentColor;transform-origin:left;animation:ink-brush-draw 1.2s cubic-bezier(.22,1,.36,1) both}
@keyframes ink-brush-draw{0%{transform:scaleX(0)}100%{transform:scaleX(1)}}

/* ---------- 页面入场动画 ---------- */
.page-in{animation:page-in .5s ease-out both}
@keyframes page-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.fade-up{animation:fade-up .6s cubic-bezier(.22,1,.36,1) both}
@keyframes fade-up{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.fade-in{animation:fade-in .4s ease-out both}
@keyframes fade-in{from{opacity:0}to{opacity:1}}
.slide-in-left{animation:slide-in-left .3s ease-out both}
@keyframes slide-in-left{from{opacity:0;transform:translateX(-14px)}to{opacity:1;transform:none}}

/* ---------- 站点框架 ---------- */
.site-wrap{min-height:100vh;display:flex;flex-direction:column}
.site-main{flex:1}
.site-header{position:sticky;top:0;z-index:100;background:color-mix(in srgb,var(--background) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo-img{height:44px;width:auto;object-fit:contain;max-width:160px}
.logo-text{font-family:var(--font-serif);font-size:24px;letter-spacing:.3em;font-weight:300;color:var(--primary);line-height:1.1;white-space:nowrap}
.logo-sub{font-size:10px;letter-spacing:.25em;color:var(--muted-foreground);text-transform:uppercase;margin-top:2px;white-space:nowrap}
.site-nav{display:flex;gap:2px;align-items:center}
.site-nav a{position:relative;padding:10px 18px;font-size:14px;letter-spacing:2px;color:var(--foreground);opacity:.85;border-radius:22px;transition:all .25s ease}
.site-nav a:after{content:'';position:absolute;left:26px;right:26px;bottom:6px;height:2px;background:var(--seal-red);transform:scaleX(0);transition:transform .3s ease;transform-origin:left}
.site-nav a:hover{opacity:1;background:var(--secondary)}
.site-nav a:hover:after,.site-nav a.on:after{transform:scaleX(1)}
.site-nav a.on{opacity:1;font-weight:700;color:var(--seal-red);background:var(--secondary)}
.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:0;padding:8px 12px;font-size:18px;cursor:pointer;color:var(--foreground);line-height:1}
.site-nav a.admin-link{border:1px solid var(--primary);padding:7px 16px;margin-left:8px;opacity:1}
.site-nav a.admin-link:hover{background:var(--primary);color:var(--primary-foreground)}

/* ---------- 公告条（全站公告） ---------- */
.notice-bar{background:var(--primary);color:var(--footer-text);overflow:hidden;position:relative}
.notice-inner{display:flex;align-items:center;height:42px;gap:14px}
.notice-tag{flex-shrink:0;background:var(--seal-red);color:#fff;font-size:11px;letter-spacing:2px;padding:2px 10px;font-weight:600}
.notice-scroll{overflow:hidden;flex:1;white-space:nowrap}
.notice-track{display:inline-flex;white-space:nowrap;animation:noticeMove 26s linear infinite}
.notice-track:hover{animation-play-state:paused}
.notice-item{display:inline-block;margin-right:48px;font-size:13px;letter-spacing:1px}
.notice-item b{color:var(--footer-accent);font-weight:600;margin-right:8px}
@keyframes noticeMove{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ---------- 页头 / 通用板块 ---------- */
.page-head{padding:64px 0 40px;text-align:center;background:linear-gradient(180deg,var(--secondary),var(--background));position:relative}
.page-head .page-en{font-size:12px;letter-spacing:.4em;text-transform:uppercase;color:var(--muted-foreground);margin-bottom:12px}
.page-head h1{font-family:var(--font-serif);font-size:40px;letter-spacing:.2em;font-weight:300}
.page-head .head-sub{font-family:var(--font-serif);letter-spacing:.15em;margin-top:8px;color:var(--muted-foreground)}
.page-head .head-desc{margin-top:16px;max-width:640px;margin-left:auto;margin-right:auto;color:var(--muted-foreground);font-size:14px}
.sec-head{text-align:center;margin:0 auto 40px;position:relative;max-width:720px}
.sec-head .sec-en{font-size:11px;letter-spacing:.4em;text-transform:uppercase;color:var(--muted-foreground)}
.sec-head .sec-line{display:inline-block;width:34px;height:1px;background:var(--seal-red);margin:0 12px 4px;vertical-align:middle}
.sec-head h2{font-family:var(--font-serif);font-size:32px;letter-spacing:.15em;font-weight:300;margin-top:8px}
.sec-head p{color:var(--muted-foreground);margin-top:12px;font-size:14px;letter-spacing:1px}
.sec-more{display:inline-block;margin-top:28px;border:1px solid var(--primary);padding:10px 30px;font-size:13px;letter-spacing:3px;color:var(--primary);transition:all .3s;position:relative;overflow:hidden}
.sec-more:hover{background:var(--primary);color:var(--primary-foreground)}
.block{padding:80px 0}
.block:nth-child(even){background:var(--secondary)}
.block.contact-block{background:linear-gradient(180deg,var(--secondary),var(--background))}
@media(min-width:768px){.block{padding:112px 0}}

/* ---------- 首页大图（淡入缩放轮播） ---------- */
.hero{position:relative;height:min(80vh,760px);min-height:480px;overflow:hidden;background:var(--primary);color:#fff}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(1.05);transition:opacity .7s ease,transform .7s ease;pointer-events:none}
.hero-slide.active{opacity:1;transform:scale(1);pointer-events:auto;z-index:2}
.hero-slide:before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.3),rgba(0,0,0,.5));z-index:1}
.hero-noise{position:absolute;inset:0;opacity:.05;pointer-events:none;z-index:1;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.hero-content{position:relative;z-index:3;text-align:center;color:#fff;padding:0 20px;max-width:900px}
.hero-content .hero-sub{display:block;font-size:13px;letter-spacing:.4em;text-transform:uppercase;margin-bottom:20px;opacity:.85;animation:fade-up .7s .1s both}
.hero-content .serif{font-family:var(--font-serif);display:block;font-size:clamp(32px,5.5vw,60px);letter-spacing:.18em;font-weight:300;line-height:1.25;text-shadow:0 2px 24px rgba(0,0,0,.45);animation:fade-up .7s .2s both}
.hero-line{width:56px;height:2px;background:#fff;margin:24px auto;position:relative;overflow:hidden}
.hero-line i{display:block;height:100%;background:#fff;transform-origin:left;animation:ink-brush-draw 1.2s .5s cubic-bezier(.22,1,.36,1) both}
.hero-btn{display:inline-block;margin-top:10px;border:1px solid rgba(255,255,255,.85);padding:11px 34px;font-size:13px;letter-spacing:4px;color:#fff;transition:all .35s;position:relative;overflow:hidden;animation:fade-up .7s .35s both}
.hero-btn:hover{background:#fff;color:var(--primary)}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:46px;height:46px;border:0;background:rgba(255,255,255,.2);color:#fff;font-size:18px;cursor:pointer;transition:background .3s;backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center}
.hero-arrow:hover{background:rgba(255,255,255,.4)}
.hero-arrow.prev{left:18px}
.hero-arrow.next{right:18px}
.hero-dots{position:absolute;bottom:28px;left:0;right:0;display:flex;justify-content:center;gap:10px;z-index:4}
.hero-dots .dot{width:28px;height:2px;background:rgba(255,255,255,.3);cursor:pointer;transition:background .3s;border:0;padding:0}
.hero-dots .dot.on{background:#fff}

/* ---------- 核心业务（四大板块） ---------- */
.biz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:24px}
.biz-card{background:var(--card-bg);border:1px solid var(--border);padding:40px 24px;text-align:center;transition:all .35s;position:relative;overflow:hidden}
.biz-card:before{content:'';position:absolute;left:0;top:0;width:100%;height:2px;background:var(--seal-red);transform:scaleX(0);transition:transform .45s;transform-origin:left}
.biz-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px hsla(0,0%,0%,.1);border-color:var(--ink-light)}
.biz-card:hover:before{transform:scaleX(1)}
.biz-icon{width:56px;height:56px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;border:1px solid var(--primary);color:var(--primary);transition:all .35s;border-radius:var(--radius)}
.biz-card:hover .biz-icon{background:var(--primary);color:var(--primary-foreground)}
.biz-icon svg{width:26px;height:26px;stroke-width:1.4}
.biz-card h3{font-family:var(--font-serif);font-size:18px;letter-spacing:.2em;margin-bottom:10px;font-weight:400}
.biz-card p{font-size:13px;color:var(--muted-foreground);line-height:1.8}
.biz-card .biz-line{width:24px;height:1px;background:var(--seal-red);margin:14px auto 0;opacity:.7}

/* ---------- 产品 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:36px}
.filter-bar a{padding:8px 22px;border:1px solid var(--border);font-size:13px;letter-spacing:1px;color:var(--muted-foreground);transition:all .3s}
.filter-bar a:hover{border-color:var(--primary);color:var(--primary)}
.filter-bar a.on{background:var(--primary);color:var(--primary-foreground);border-color:var(--primary)}
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:24px}
.prod-card{background:var(--card-bg);border:1px solid var(--border);overflow:hidden;transition:all .35s;display:block}
.prod-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px hsla(0,0%,0%,.1)}
.prod-img{aspect-ratio:4/3;background:var(--muted);overflow:hidden;position:relative}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.prod-card:hover .prod-img img{transform:scale(1.05)}
.prod-badge{position:absolute;top:12px;left:12px;z-index:2}
.prod-info{padding:18px 18px 20px}
.prod-cat{font-size:11px;letter-spacing:.3em;color:var(--seal-red);text-transform:uppercase;margin-bottom:6px}
.prod-info h3{font-family:var(--font-serif);font-size:16px;letter-spacing:1px;font-weight:400}
.prod-price{font-family:var(--font-serif);font-size:15px;color:var(--primary);margin-top:6px}
.prod-stock{font-size:11px;color:var(--muted-foreground);margin-top:2px}
.prod-cat-desc{text-align:center;font-style:italic;color:var(--muted-foreground);max-width:640px;margin:0 auto 26px;padding-bottom:18px;border-bottom:1px solid var(--border);font-size:14px}

/* ---------- 产品详情 ---------- */
.pd-main{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,72px);align-items:start}
.pd-gallery .pd-hero{aspect-ratio:1/1;background:var(--muted);overflow:hidden;display:flex;align-items:center;justify-content:center;border:1px solid var(--border)}
.pd-gallery .pd-hero img{width:100%;height:100%;object-fit:cover}
.pd-thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.pd-thumbs img{width:72px;height:72px;object-fit:cover;cursor:pointer;border:1px solid var(--border);opacity:.7;transition:all .25s}
.pd-thumbs img.on,.pd-thumbs img:hover{border-color:var(--seal-red);opacity:1}
.pd-info-box .pd-cat{font-size:11px;letter-spacing:.3em;text-transform:uppercase;color:var(--seal-red)}
.pd-info-box h1{font-family:var(--font-serif);font-size:30px;letter-spacing:.1em;font-weight:300;margin:10px 0 14px}
.pd-price{font-family:var(--font-serif);font-size:22px;color:var(--primary);margin:14px 0}
.pd-stock{margin:8px 0 16px}
.pd-summary{margin:16px 0;color:var(--muted-foreground);line-height:1.9;padding:18px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.pd-specs{margin:14px 0}
.pd-specs h3{font-family:var(--font-serif);font-size:16px;letter-spacing:2px;margin-bottom:8px}
.pd-contact{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}
.pd-contact a{border:1px solid var(--primary);padding:11px 26px;font-size:13px;letter-spacing:2px;transition:all .3s}
.pd-contact a.primary{background:var(--primary);color:var(--primary-foreground)}
.pd-contact a:hover{opacity:.85}
.pd-detail .rich{margin-top:20px;color:var(--foreground)}
.breadcrumb{font-size:13px;color:var(--muted-foreground);padding:16px 0;border-bottom:1px solid var(--border);margin-bottom:28px}
.breadcrumb a:hover{color:var(--seal-red)}

/* ---------- 品牌 ---------- */
.brand-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:24px}
.brand-card{background:var(--card-bg);border:1px solid var(--border);padding:30px 22px;text-align:center;transition:all .35s}
.brand-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px hsla(0,0%,0%,.1);border-color:var(--ink-light)}
.brand-inner{display:flex;align-items:center;justify-content:center;min-height:90px;margin-bottom:14px}
.brand-inner img{max-height:72px;max-width:80%;object-fit:contain;filter:grayscale(1);opacity:.7;transition:all .35s}
.brand-card:hover .brand-inner img{filter:none;opacity:1}
.brand-name{font-family:var(--font-serif);font-size:17px;letter-spacing:.15em;font-weight:400}
.brand-line{width:22px;height:1px;background:var(--seal-red);margin:10px auto}
.brand-card p{font-size:12px;color:var(--muted-foreground);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.brand-link{display:inline-block;margin-top:10px;font-size:12px;letter-spacing:1px;color:var(--seal-red)}
.brand-link:hover{text-decoration:underline}
.logo-wall{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:16px;align-items:center}
.logo-wall .logo-item{background:var(--card-bg);border:1px solid var(--border);height:80px;display:flex;align-items:center;justify-content:center;padding:14px;transition:all .35s}
.logo-wall .logo-item img{max-height:52px;max-width:85%;object-fit:contain;filter:grayscale(1);opacity:.6;transition:all .35s}
.logo-wall .logo-item:hover{border-color:var(--ink-light);box-shadow:0 6px 20px hsla(0,0%,0%,.08)}
.logo-wall .logo-item:hover img{filter:none;opacity:1}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.news-card{background:var(--card-bg);border:1px solid var(--border);overflow:hidden;display:block;transition:all .35s}
.news-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px hsla(0,0%,0%,.1)}
.news-card .noimg,.news-card>img{height:190px;width:100%;object-fit:cover}
.news-card-body{padding:18px 18px 20px}
.news-tag{display:inline-block;font-size:10px;letter-spacing:2px;background:var(--seal-red);color:#fff;padding:2px 10px;margin-bottom:10px}
.news-card-body h3{font-family:var(--font-serif);font-size:16px;line-height:1.55;font-weight:400}
.news-date{font-size:12px;color:var(--muted-foreground);margin-top:10px}
.news-list .news-row{display:flex;align-items:center;gap:18px;padding:20px 4px;border-bottom:1px solid var(--border);transition:padding .25s}
.news-list .news-row:hover{padding-left:14px}
.news-list .news-row:hover .nr-title{color:var(--seal-red)}
.news-row .news-date{flex-shrink:0;min-width:110px;color:var(--muted-foreground)}
.nr-meta{display:flex;gap:14px;font-size:12px;color:var(--muted-foreground);margin-top:6px}
.nr-title{font-family:var(--font-serif);font-size:16px;transition:color .25s}
.nr-top{color:var(--seal-red);border:1px solid var(--seal-red);font-size:10px;padding:0 6px;margin-left:6px;vertical-align:2px}
.news-meta{font-size:12px;color:var(--muted-foreground);display:flex;gap:16px;margin-top:8px;align-items:center}
.news-detail h1{font-family:var(--font-serif);font-size:30px;letter-spacing:.08em;font-weight:300;text-align:center;margin-top:10px}
.news-detail .rich{margin-top:24px;color:var(--foreground)}
.news-detail .news-meta{justify-content:center;border-bottom:1px solid var(--border);padding-bottom:18px;margin-bottom:8px}
.pager{display:flex;gap:8px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.pager a,.pager span{min-width:36px;padding:7px 12px;border:1px solid var(--border);font-size:13px;text-align:center;transition:all .25s}
.pager a:hover{border-color:var(--primary);color:var(--primary)}
.pager .cur{background:var(--primary);color:var(--primary-foreground);border-color:var(--primary)}
.nav-prev-next{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px}
.nav-prev-next a{border:1px solid var(--border);padding:16px 20px;font-size:13px;transition:all .3s}
.nav-prev-next a:hover{border-color:var(--primary);color:var(--primary)}
.nav-prev-next .dir{font-size:11px;letter-spacing:2px;color:var(--muted-foreground);display:block;margin-bottom:4px}

/* ---------- 关于 ---------- */
.about-hero{background:var(--primary);color:var(--footer-text);position:relative;overflow:hidden;padding:96px 0;text-align:center}
.about-hero .serif{font-family:var(--font-serif);font-size:clamp(30px,4.5vw,48px);letter-spacing:.18em;font-weight:300}
.about-hero p{letter-spacing:.3em;margin-top:14px;opacity:.85;font-size:13px}
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(28px,4vw,72px);align-items:center}
.about-img{overflow:hidden;position:relative;border:1px solid var(--border)}
.about-img:after{content:'';position:absolute;inset:8px;border:1px solid var(--ink-light);pointer-events:none}
.about-img img{width:100%;aspect-ratio:4/3.2;object-fit:cover}
.about-text h3{font-family:var(--font-serif);font-size:26px;letter-spacing:.15em;margin-bottom:18px;font-weight:300}
.about-text p{color:var(--muted-foreground);margin-bottom:12px;line-height:2}
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:0}
.timeline:before{content:'';position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--border)}
.tl-item{position:relative;width:50%;padding:0 40px 40px 0;text-align:right}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 40px 40px;text-align:left}
.tl-dot{position:absolute;top:6px;width:12px;height:12px;border-radius:50%;background:var(--seal-red);right:-6px}
.tl-item:nth-child(even) .tl-dot{right:auto;left:-6px}
.tl-year{font-family:var(--font-serif);font-size:20px;letter-spacing:2px;color:var(--primary)}
.tl-text{font-size:13px;color:var(--muted-foreground);margin-top:4px;line-height:1.7}
.honor-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.honor-item{border:1px solid var(--border);padding:28px 18px;text-align:center;transition:all .3s;background:var(--card-bg)}
.honor-item:hover{box-shadow:0 10px 30px hsla(0,0%,0%,.08)}
.honor-item svg{width:30px;height:30px;margin:0 auto 10px;color:var(--seal-red);display:block}
.honor-item span{font-size:14px;letter-spacing:1px}
.culture-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:20px}
.culture-item{border:1px solid var(--border);background:var(--card-bg);padding:30px 20px;text-align:center;transition:all .3s}
.culture-item:hover{box-shadow:0 10px 30px hsla(0,0%,0%,.08);transform:translateY(-3px)}
.culture-item h4{font-family:var(--font-serif);font-size:17px;letter-spacing:.15em;margin-bottom:10px;font-weight:400}
.culture-item p{font-size:12px;color:var(--muted-foreground);line-height:1.8}
.strength{background:var(--primary);color:var(--footer-text);position:relative;overflow:hidden}
.strength-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:24px;text-align:center;position:relative;z-index:2}
.strength-num{font-family:var(--font-serif);font-size:clamp(34px,4vw,48px);font-weight:300;color:var(--footer-accent)}
.strength-unit{font-size:16px;margin-left:4px}
.strength-label{letter-spacing:.25em;margin-top:8px;font-size:13px;opacity:.8}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:2fr 3fr;gap:clamp(28px,4vw,72px);align-items:start}
.contact-info .ci-item{padding:14px 0;border-bottom:1px solid var(--border);display:flex;gap:14px;align-items:flex-start}
.ci-item .ci-icon{width:36px;height:36px;flex-shrink:0;border:1px solid var(--primary);display:flex;align-items:center;justify-content:center;color:var(--primary)}
.ci-item .ci-icon svg{width:16px;height:16px}
.ci-item b{font-family:var(--font-serif);min-width:70px;letter-spacing:2px;font-size:14px;display:block;font-weight:400}
.ci-item span{color:var(--muted-foreground);font-size:14px;word-break:break-all}
.ci-qr{margin-top:18px;padding:16px;border:1px solid var(--border);text-align:center;background:var(--card-bg)}
.ci-qr img{max-width:140px;margin:0 auto}
.ci-qr p{font-size:12px;color:var(--muted-foreground);margin-top:8px}
.ci-map{margin-top:18px;border:1px solid var(--border);padding:22px;display:flex;align-items:center;gap:12px;color:var(--muted-foreground);font-size:13px;background:var(--card-bg)}
.cform{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cf-row{display:flex;flex-direction:column;gap:6px}
.cf-row.full{grid-column:1/-1}
.cf-row label{font-size:12px;color:var(--muted-foreground);letter-spacing:1px}
.cf-row label em{color:var(--seal-red);font-style:normal}
.cf-row input,.cf-row textarea,.cf-row select{padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none;transition:border .25s;font-family:inherit;background:var(--card-bg);color:var(--foreground)}
.cf-row input:focus,.cf-row textarea:focus,.cf-row select:focus{border-color:var(--seal-red)}
.cf-row textarea{resize:vertical;min-height:110px}
.cf-tip{font-size:12px;color:var(--muted-foreground);grid-column:1/-1;line-height:1.8}
.btn-submit{grid-column:1/-1;background:var(--primary);color:var(--primary-foreground);border:0;padding:14px;font-size:14px;letter-spacing:4px;cursor:pointer;transition:opacity .25s;border-radius:var(--radius)}
.btn-submit:hover{opacity:.85}
.btn-submit:disabled{opacity:.5;cursor:not-allowed}
.btn-submit.ghost{background:transparent;color:var(--primary);border:1px solid var(--primary)}
.form-msg{grid-column:1/-1;font-size:13px;padding:10px 14px;display:none}
.form-msg.ok{display:block;background:rgba(46,125,50,.08);color:#2e7d32;border:1px solid rgba(46,125,50,.3)}
.form-msg.err{display:block;background:rgba(192,57,43,.07);color:#c0392b;border:1px solid rgba(192,57,43,.3)}

/* ---------- CTA 深色区 ---------- */
.cta-block{background:var(--primary);color:var(--footer-text);position:relative;overflow:hidden;text-align:center;padding:96px 0}
.cta-block .cta-en{font-size:12px;letter-spacing:.4em;text-transform:uppercase;opacity:.8}
.cta-block h2{font-family:var(--font-serif);font-size:clamp(28px,4vw,40px);letter-spacing:.15em;font-weight:300;margin-top:16px}
.cta-block p{max-width:560px;margin:18px auto 0;color:rgba(255,255,255,.75);font-size:14px;line-height:1.9;position:relative;z-index:2}
.cta-btn{display:inline-block;margin-top:30px;border:1px solid rgba(255,255,255,.8);padding:12px 38px;font-size:13px;letter-spacing:4px;color:#fff;transition:all .35s;position:relative;z-index:2}
.cta-btn:hover{background:#fff;color:var(--primary)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:var(--footer-text);padding:64px 0 0;margin-top:0;position:relative}
.site-footer .footer-topline{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.18),transparent);margin-bottom:48px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-slogan{font-family:var(--font-serif);font-size:24px;letter-spacing:.2em;margin-bottom:14px;font-weight:300}
.footer-desc{font-size:13px;color:rgba(255,255,255,.62);line-height:2;max-width:360px}
.footer-col h4{font-size:13px;letter-spacing:3px;margin-bottom:18px;color:var(--footer-accent);font-weight:400}
.footer-col a{display:block;padding:5px 0;font-size:13px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:var(--footer-accent);padding-left:6px}
.footer-col p{font-size:13px;color:rgba(255,255,255,.6);line-height:2}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:12px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:inherit}
.footer-bottom a:hover{color:var(--footer-accent)}
.fb-item{display:inline-block;margin:0 10px}
.footer-brand-line{display:flex;align-items:center;justify-content:center;gap:16px;padding:26px 0 20px}
.footer-brand-line .fb-line{width:60px;height:1px;background:rgba(255,255,255,.25)}
.footer-brand-line .fb-name{font-family:var(--font-serif);letter-spacing:.3em;font-size:18px}
.footer-brand-line .fb-en{font-size:10px;letter-spacing:.25em;color:rgba(255,255,255,.45);margin-left:8px}

/* ---------- 浮动客服条 ---------- */
.float-bar{position:fixed;right:24px;bottom:24px;z-index:90;display:flex;flex-direction:column;gap:10px}
.float-bar a{width:48px;height:48px;border-radius:50%;background:var(--primary);color:var(--primary-foreground);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.18);transition:all .3s;position:relative;border:0;cursor:pointer}
.float-bar a:hover{transform:translateY(-3px);background:var(--seal-red);color:#fff}
.float-bar a svg{width:20px;height:20px}
.float-bar .fb-top{background:var(--muted-foreground)}
.float-bar a[data-tip]:hover:after{content:attr(data-tip);position:absolute;right:56px;background:var(--primary);color:#fff;font-size:12px;padding:6px 10px;white-space:nowrap;z-index:5}
.float-bar .fb-top{position:absolute;right:0;bottom:0}
#tx-toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(20px);background:var(--primary);color:var(--primary-foreground);padding:11px 24px;font-size:13px;letter-spacing:1px;opacity:0;transition:all .35s;z-index:200;pointer-events:none}
#tx-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- 维护页 ---------- */
.maintain-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--secondary);text-align:center;padding:20px;position:relative;overflow:hidden}
.maintain-box{position:relative;z-index:2}
.maintain-icon{width:76px;height:76px;margin:0 auto;border:2px solid var(--seal-red);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--seal-red)}
.maintain-icon svg{width:34px;height:34px}
.maintain-box h1{font-family:var(--font-serif);font-size:36px;letter-spacing:8px;margin:20px 0 12px;font-weight:300}
.maintain-box p{color:var(--muted-foreground);letter-spacing:2px}

/* ---------- 滚动入场动画 ---------- */
.reveal{opacity:0;transform:translateY(32px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
.reveal.show{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ---------- 墨晕按钮 ---------- */
.btn-ink{position:relative;overflow:hidden;isolation:isolate}
.btn-ink::after{content:'';position:absolute;left:50%;top:50%;width:0;height:0;border-radius:50%;background:rgba(255,255,255,.35);transform:translate(-50%,-50%);transition:width .6s ease,height .6s ease;z-index:-1}
.btn-ink:hover::after{width:300px;height:300px}

/* ---------- 前台侧边栏（内页双栏布局） ---------- */
.page-layout{display:grid;grid-template-columns:264px 1fr;gap:44px;width:min(1152px,92%);margin:0 auto;padding:40px 24px 0;align-items:start}
.page-layout .page-content{min-width:0}
.page-side{position:relative}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-card{border:1px solid var(--border);background:var(--card-bg);padding:22px 18px;transition:box-shadow .3s}
.side-card:hover{box-shadow:0 8px 26px hsla(0,0%,0%,.07)}
.side-card h4{font-family:var(--font-serif);font-size:14px;letter-spacing:3px;font-weight:400;padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--border);position:relative;color:var(--primary)}
.side-card h4:after{content:'';position:absolute;left:0;bottom:-1px;width:34px;height:2px;background:var(--seal-red)}
.side-nav a{display:block;padding:9px 12px;font-size:14px;letter-spacing:2px;color:var(--muted-foreground);border-left:2px solid transparent;transition:all .25s;position:relative}
.side-nav a:hover{color:var(--primary);padding-left:18px;background:var(--secondary)}
.side-nav a.on{color:var(--primary);border-left-color:var(--seal-red);background:var(--secondary);font-weight:600}
.side-intro{font-size:12px;color:var(--muted-foreground);line-height:1.9;margin-top:12px;padding:10px 12px;background:var(--secondary);border-left:2px solid var(--seal-red)}
.side-anchors{margin-top:10px;padding-top:12px;border-top:1px solid var(--border)}
.side-anchors .sa-title{font-size:11px;letter-spacing:2px;color:var(--muted-foreground);margin-bottom:8px}
.side-anchors a{display:block;padding:6px 12px;font-size:13px;letter-spacing:1px;color:var(--muted-foreground);transition:all .2s}
.side-anchors a:hover{color:var(--seal-red);padding-left:16px}
.side-contact{list-style:none}
.side-contact li{display:flex;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}
.side-contact li:last-child{border-bottom:0}
.side-contact b{color:var(--primary);font-weight:400;letter-spacing:1px;flex-shrink:0}
.side-contact span{color:var(--muted-foreground);text-align:right;word-break:break-all}
.side-qr{margin-top:12px;text-align:center;padding:12px;border:1px solid var(--border);background:var(--secondary)}
.side-qr img{max-width:130px;margin:0 auto}
.side-qr p{font-size:11px;color:var(--muted-foreground);margin-top:6px;letter-spacing:1px}
.side-card h4 i{font-style:normal;font-size:10px;letter-spacing:2px;color:var(--muted-foreground);margin-left:6px}

/* ---------- 发展历程卡片（DIY 渲染） ---------- */
.tl-card{background:var(--card-bg);border:1px solid var(--border);padding:18px 20px;display:inline-block;text-align:left;transition:all .3s;max-width:100%}
.tl-card:hover{box-shadow:0 10px 26px hsla(0,0%,0%,.1);border-color:var(--ink-light)}
.tl-card h3{font-family:var(--font-serif);font-size:16px;letter-spacing:1px;font-weight:400;margin:6px 0}
.tl-card p{font-size:13px;color:var(--muted-foreground);line-height:1.8;margin-top:6px}
.tl-item .tl-card{margin-top:4px}
.tl-item.right .tl-card{float:right}
.tl-item{overflow:hidden}
.tl-item .tl-year{display:inline-block;padding:3px 12px;background:var(--primary);color:var(--primary-foreground);font-size:14px;letter-spacing:2px;font-family:var(--font-serif)}

/* ---------- 企业文化卡片（DIY 渲染） ---------- */
.culture-card{border:1px solid var(--border);background:var(--card-bg);padding:30px 22px;text-align:center;position:relative;transition:all .35s;overflow:hidden}
.culture-card:before{content:'';position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--seal-red);transform:scaleY(0);transform-origin:top;transition:transform .4s}
.culture-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px hsla(0,0%,0%,.1)}
.culture-card:hover:before{transform:scaleY(1)}
.culture-card h3{font-family:var(--font-serif);font-size:17px;letter-spacing:.2em;font-weight:400;margin-bottom:12px}
.culture-card p{font-size:13px;color:var(--muted-foreground);line-height:1.9}
.culture-line{width:24px;height:1px;background:var(--seal-red);margin:0 auto 14px;position:relative}
.culture-line:after{content:'';position:absolute;left:50%;top:-3px;width:7px;height:7px;border:1px solid var(--seal-red);transform:translateX(-50%) rotate(45deg)}

/* ---------- 页脚版权美化 ---------- */
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:26px 0;text-align:center;font-size:12px;color:rgba(255,255,255,.55);position:relative}
.footer-bottom:before{content:'';position:absolute;left:50%;top:-1px;transform:translateX(-50%);width:64px;height:2px;background:var(--footer-accent)}
.fb-inner{display:inline-flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;letter-spacing:1px}
.fb-copy{color:rgba(255,255,255,.72)}
.fb-slogan{font-family:var(--font-serif);letter-spacing:2px;color:rgba(255,255,255,.6)}
.fb-dot{color:var(--footer-accent)}
.footer-bottom a{color:inherit;transition:color .25s}
.footer-bottom a:hover{color:var(--footer-accent)}
.fb-item{display:inline-block;margin:0 10px}

/* ---------- 通用卡片/链接动效增强 ---------- */
.brand-card,.news-card,.honor-item,.logo-item,.ci-qr,.ci-map,.contact-form{transition:transform .35s,box-shadow .35s,border-color .35s}
.hero-btn,.cta-btn,.sec-more,.btn-submit{position:relative;overflow:hidden}
.filter-bar a:hover{letter-spacing:2px}
.sec-head h2{position:relative;display:inline-block}
.sec-head h2:after{content:'';position:absolute;left:50%;bottom:-10px;width:0;height:1px;background:var(--seal-red);transform:translateX(-50%);transition:width .4s}
.sec-head:hover h2:after{width:46px}
.news-row,.nav-prev-next a{transition:padding .25s,border-color .3s,color .25s,box-shadow .3s}
.news-row:hover{box-shadow:0 6px 20px hsla(0,0%,0%,.05)}
.pd-contact a{overflow:hidden;position:relative}

/* ---------- 响应式：侧边栏 ---------- */
@media(max-width:992px){
  .page-layout{grid-template-columns:1fr;gap:0;padding-top:0}
  .page-side{order:2;width:100%}
  .side-sticky{position:static;gap:10px;margin-top:8px}
  .page-layout .page-content{order:1;width:100%}
  .page-layout .page-head{padding-top:40px}
  /* 移动端侧边栏精简：隐藏重复导航与锚点，只留联系方式快捷块 */
  .side-nav,.side-anchors,.side-intro{display:none}
  .side-card{border:0;background:var(--secondary);padding:14px 16px}
  .side-card h4{margin-bottom:10px}
  .side-contact{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;margin:0}
  .side-contact li{flex-direction:column;gap:2px;border:1px solid var(--border);background:var(--card-bg);padding:10px 12px}
  .side-contact b{font-size:11px;color:var(--muted-foreground)}
  .side-contact span{text-align:left;font-size:13px;color:var(--primary);font-weight:600}
  .side-qr{display:none}
}

/* ---------- 响应式 ---------- */
@media(max-width:992px){
  .biz-grid,.prod-grid,.brand-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid,.pd-main,.contact-grid{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .culture-grid{grid-template-columns:repeat(2,1fr)}
  .strength-grid{grid-template-columns:repeat(2,1fr)}
  .timeline:before{left:8px}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 32px 36px;text-align:left}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:3px;right:auto}
}
@media(max-width:640px){
  .site-nav{position:fixed;top:72px;left:0;right:0;background:var(--background);flex-direction:column;align-items:stretch;padding:14px 5% 18px;display:none;border-bottom:1px solid var(--border);box-shadow:0 12px 30px rgba(0,0,0,.08);gap:2px}
  .site-nav.open{display:flex;max-height:calc(100vh - 72px);overflow-y:auto}
  .site-nav a{padding:13px 16px;border:0;border-radius:12px;margin:1px 0;font-size:15px;letter-spacing:1px}
  .site-nav a:after{display:none}
  .site-nav a:hover,.site-nav a.on{background:var(--secondary);color:var(--seal-red);opacity:1}
  .site-nav a.on{font-weight:700;box-shadow:inset 3px 0 0 var(--seal-red)}
  .site-nav a.admin-link{margin-left:0;margin-top:8px;border-radius:12px;text-align:center}
  .nav-toggle{display:block}
  .biz-grid,.prod-grid,.brand-grid,.news-grid{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(2,1fr)}
  .honor-grid,.culture-grid{grid-template-columns:1fr}
  .cform{grid-template-columns:1fr}
  .page-head{padding:44px 0 28px}
  .page-head h1{font-size:26px}
  .sec-head h2{font-size:24px}
  .block{padding:56px 0}
  .hero{height:66vh;min-height:440px}
  .float-bar{right:12px;bottom:16px}
  .float-bar a{width:44px;height:44px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .nav-prev-next{grid-template-columns:1fr}
  .hero-arrow{width:38px;height:38px}
  .hero-arrow.prev{left:8px}
  .hero-arrow.next{right:8px}
}