/* 圣淘沙官网 · 企业级 SEO 友好样式 */
:root{
  --gold:#c8a24a; --gold-d:#a8842f; --ink:#16343f; --muted:#6b7c82;
  --bg:#ffffff; --soft:#f4f7f7; --line:#e3eaeb; --radius:14px; --shadow:0 10px 30px rgba(22,52,63,.08);
  --max:1200px; --serif:"Noto Serif SC","Songti SC",serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--serif);line-height:1.3;font-weight:700}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px}
.logo-mark{width:42px;height:42px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-family:var(--serif);font-size:22px;font-weight:700}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:19px;letter-spacing:1px}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:2px}
.main-nav ul{display:flex;gap:28px}
.main-nav a{font-size:15px;position:relative;padding:4px 0;transition:.2s}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;background:var(--gold);transition:.25s}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer}
.nav-toggle span{width:26px;height:2px;background:var(--ink);border-radius:2px}

/* ===== Hero ===== */
.hero{position:relative;min-height:88vh;display:flex;flex-direction:column;justify-content:center;overflow:hidden;color:#fff}
.hero>picture{position:absolute;inset:0;z-index:-1}
.hero>picture img{width:100%;height:100%;object-fit:cover;filter:brightness(.62)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,40,50,.55),rgba(15,40,50,.15));z-index:-1}
.hero-text{position:relative;padding:120px 24px 40px;max-width:760px}
.hero-kicker{display:inline-block;font-size:13px;letter-spacing:3px;text-transform:uppercase;color:var(--gold);margin-bottom:18px}
.hero-text h1{font-size:clamp(34px,5vw,60px);margin-bottom:20px;letter-spacing:1px}
.hero-text p{font-size:18px;max-width:560px;color:#eef4f5}
.hero-cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.btn-primary,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;padding:14px 30px;border-radius:999px;font-size:15px;font-weight:600;transition:.25s;cursor:pointer;border:2px solid transparent}
.btn-primary{background:var(--gold);color:#fff}
.btn-primary:hover{background:var(--gold-d);transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12)}
.hero-stats{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px;background:rgba(255,255,255,.1);backdrop-filter:blur(6px);border-radius:var(--radius);padding:22px}
.hero-stats div{text-align:center;border-right:1px solid rgba(255,255,255,.2)}
.hero-stats div:last-child{border:0}
.hero-stats b{display:block;font-size:34px;font-family:var(--serif);color:var(--gold)}
.hero-stats span{font-size:13px;color:#dbe7e8}

/* ===== 通用区块 ===== */
.section{padding:90px 0}
.sec-head{text-align:center;max-width:680px;margin:0 auto 50px}
.sec-head-split{display:flex;align-items:end;justify-content:space-between;text-align:left;max-width:none;margin-bottom:40px}
.sec-tag{display:block;color:var(--gold);letter-spacing:4px;font-size:13px;text-transform:uppercase;margin-bottom:10px}
.sec-head h2{font-size:clamp(26px,3vw,38px)}
.sec-head p{color:var(--muted);margin-top:14px}
.more{color:var(--gold-d);font-weight:600;white-space:nowrap}

/* ===== 服务/新闻卡片 ===== */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.feat{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;border:1px solid var(--line)}
.feat:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(22,52,63,.14)}
.feat img{width:100%;height:240px;object-fit:cover;aspect-ratio:3/2}
.feat h3{padding:20px 22px 6px;font-size:19px}
.feat p{padding:0 22px 14px;color:var(--muted);font-size:14px}
.feat a{display:inline-block;padding:0 22px 22px;color:var(--gold-d);font-weight:600;font-size:14px}

.cs-banner{background:var(--ink);color:#fff;border-radius:var(--radius);margin:0 24px;padding:0}
.cs-banner-inner{display:flex;align-items:center;gap:40px;padding:50px}
.cs-avatar{width:150px;height:150px;border-radius:50%;object-fit:cover;border:4px solid var(--gold);flex-shrink:0}
.cs-banner h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.cs-banner p{color:#c9d8db;max-width:620px}

.news-mini-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-mini{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s}
.news-mini:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.nm-img{overflow:hidden}
.news-mini img{width:100%;height:180px;object-fit:cover;transition:.5s}
.news-mini:hover img{transform:scale(1.06)}
.news-mini h4{padding:14px 18px 6px;font-size:16px;line-height:1.5}
.news-mini .cat,.news-card .cat{display:inline-block;margin:14px 18px 0;font-size:12px;color:var(--gold-d);border:1px solid var(--gold);border-radius:999px;padding:2px 12px}
.news-mini time,.news-card time{display:block;padding:10px 18px 16px;font-size:12px;color:var(--muted)}

/* ===== 内页通用 ===== */
.page-hero{background:linear-gradient(135deg,var(--ink),#2a5560);color:#fff;padding:90px 0 60px}
.page-hero h1{font-size:clamp(30px,4vw,48px)}
.page-hero p{color:#c9d8db;margin-top:14px}
.breadcrumb{padding:18px 24px;font-size:14px;color:var(--muted)}
.breadcrumb a:hover{color:var(--gold-d)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--line)}

.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center}
.about-grid img{border-radius:var(--radius);box-shadow:var(--shadow)}
.about-grid h2{font-size:30px;margin-bottom:18px}
.about-grid p{margin-bottom:16px;color:#3d525a}
.about-list{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}
.about-list b{display:block;font-size:26px;color:var(--gold-d);font-family:var(--serif)}
.about-list span{font-size:12px;color:var(--muted)}

/* 团队 */
.team-hero{position:relative;padding:0}
.team-hero .container{position:relative;padding-top:80px;padding-bottom:40px}
.team-cover{width:100%;height:420px;object-fit:cover;border-radius:var(--radius);margin-top:-30px}
.cs-pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cs-pillars article{background:var(--soft);border-radius:var(--radius);padding:30px 24px;transition:.3s;border-bottom:3px solid transparent}
.cs-pillars article:hover{border-bottom-color:var(--gold);transform:translateY(-4px)}
.cs-pillars span{font-family:var(--serif);font-size:40px;color:var(--gold)}
.cs-pillars h3{margin:10px 0 8px;font-size:19px}
.cs-pillars p{font-size:14px;color:var(--muted)}
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.team-grid figure{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.team-grid img{width:100%;height:360px;object-fit:cover;aspect-ratio:4/5}
.team-grid figcaption{padding:18px;text-align:center}
.team-grid figcaption span{color:var(--muted);font-size:13px}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:50px}
.contact-info{display:grid;gap:26px}
.contact-info div{background:var(--soft);padding:24px;border-radius:var(--radius);border-left:4px solid var(--gold)}
.contact-info h3{font-size:14px;color:var(--gold-d);letter-spacing:1px}
.contact-info .tel{font-size:28px;font-family:var(--serif);font-weight:700;color:var(--ink)}
.contact-info small{color:var(--muted)}
.contact-form{display:grid;gap:18px;background:#fff;padding:34px;border-radius:var(--radius);box-shadow:var(--shadow)}
.contact-form label{display:grid;gap:6px;font-size:14px;color:var(--muted)}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;color:var(--ink);transition:.2s}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--gold);outline:none}
.contact-form .btn-primary{border:none}

/* ===== 新闻列表 / 详情 ===== */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s}
.news-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.nc-img img{width:100%;height:240px;object-fit:cover;aspect-ratio:8/5}
.nc-body{padding:18px 22px 22px}
.nc-body .cat{margin:0 0 10px}
.nc-body h3{font-size:19px;line-height:1.5;margin-bottom:8px}
.nc-body h3 a:hover{color:var(--gold-d)}
.nc-body time{font-size:12px;color:var(--muted)}
.nc-body p{margin-top:10px;color:#52666d;font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.pager{display:flex;justify-content:center;gap:8px;margin-top:50px;flex-wrap:wrap}
.pg{padding:8px 16px;border:1px solid var(--line);border-radius:8px;font-size:14px;transition:.2s}
.pg:hover:not(.disabled):not(.cur){border-color:var(--gold);color:var(--gold-d)}
.pg.cur{background:var(--gold);color:#fff;border-color:var(--gold)}
.pg.disabled{opacity:.4;cursor:not-allowed}

.news-detail{display:grid;grid-template-columns:1fr 280px;gap:44px;padding:40px 24px 90px}
.news-detail>header{grid-column:1/-1}
.news-detail header .cat{display:inline-block;color:var(--gold-d);border:1px solid var(--gold);border-radius:999px;padding:3px 14px;font-size:13px;margin-bottom:14px}
.news-detail h1{font-size:clamp(26px,3vw,40px);max-width:900px}
.news-detail time{color:var(--muted);font-size:14px}
.nd-cover{grid-column:1/-1;margin:24px 0}
.nd-cover img{border-radius:var(--radius);width:100%;max-height:520px;object-fit:cover}
.nd-cover figcaption{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}
.nd-body{font-size:16px;color:#334a52}
.nd-body .lead{font-size:19px;color:var(--ink);font-weight:600;border-left:4px solid var(--gold);padding-left:18px}
.nd-body h2{font-size:22px;margin:30px 0 14px}
.nd-body p{margin-bottom:16px}
.nd-body blockquote{background:var(--soft);border-radius:10px;padding:22px 26px;margin:26px 0;font-family:var(--serif);font-size:19px;color:var(--gold-d)}
.nd-side{position:sticky;top:100px;align-self:start}
.nd-side h3{border-bottom:2px solid var(--gold);padding-bottom:10px;margin-bottom:16px}
.nd-side ul{display:grid;gap:14px}
.nd-side a{font-size:14px;line-height:1.5;display:block}
.nd-side a:hover{color:var(--gold-d)}
.nd-side time{display:block;font-size:12px;color:var(--muted);margin-top:4px}
.nd-side .btn-primary{margin-top:24px;width:100%}

/* ===== 客服悬浮窗（视觉重点）===== */
.cs-float{position:fixed;right:24px;bottom:24px;z-index:100;font-size:14px}
.cs-trigger{display:flex;align-items:center;gap:8px;background:var(--gold);color:#fff;border:0;border-radius:999px;padding:14px 22px;font-size:15px;font-weight:600;cursor:pointer;box-shadow:0 8px 24px rgba(200,162,74,.5);transition:.25s;animation:pulse 2.4s infinite}
.cs-trigger:hover{background:var(--gold-d);transform:translateY(-2px)}
.cs-dot{width:9px;height:9px;background:#4ade80;border-radius:50%;box-shadow:0 0 0 3px rgba(74,222,128,.3)}
@keyframes pulse{0%,100%{box-shadow:0 8px 24px rgba(200,162,74,.5)}50%{box-shadow:0 8px 34px rgba(200,162,74,.85)}}
.cs-panel{position:absolute;right:0;bottom:64px;width:340px;background:#fff;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.18);overflow:hidden;display:flex;flex-direction:column;animation:slideUp .3s ease}
.cs-panel[hidden]{display:none}
@keyframes slideUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.cs-panel-head{display:flex;align-items:center;gap:12px;padding:16px;background:linear-gradient(135deg,var(--ink),#2a5560);color:#fff}
.cs-panel-head img{width:44px;height:44px;border-radius:50%;border:2px solid var(--gold)}
.cs-panel-head small{color:#bcd0d3}
.cs-chat{flex:1;max-height:260px;overflow:auto;padding:16px;display:grid;gap:12px;background:var(--soft)}
.cs-chat li{font-size:13px;padding:10px 14px;border-radius:12px;max-width:85%;line-height:1.5}
.cs-chat .bot{background:#fff;border-bottom-left-radius:4px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.cs-chat .me{background:var(--gold);color:#fff;margin-left:auto;border-bottom-right-radius:4px}
.cs-form{display:flex;border-top:1px solid var(--line)}
.cs-form input{flex:1;border:0;padding:13px 14px;font:inherit;outline:none}
.cs-form button{background:var(--gold);color:#fff;border:0;padding:0 18px;cursor:pointer;font-weight:600}
.cs-quick{display:flex;gap:6px;padding:10px;flex-wrap:wrap;border-top:1px solid var(--line)}
.cs-quick button{font-size:12px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;cursor:pointer;transition:.2s}
.cs-quick button:hover{border-color:var(--gold);color:var(--gold-d)}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#c9d8db;margin-top:80px;padding-top:60px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:40px}
.site-footer h3{color:#fff;font-size:20px;margin-bottom:12px}
.site-footer h4{color:var(--gold);font-size:14px;letter-spacing:1px;margin-bottom:14px}
.site-footer ul{display:grid;gap:8px;font-size:14px}
.site-footer a:hover{color:var(--gold)}
.cs-line li{font-size:14px}
.copyright{display:flex;justify-content:space-between;padding:22px 24px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#93aab0}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .feat-grid,.news-mini-list,.news-list,.cs-pillars{grid-template-columns:repeat(2,1fr)}
  .about-grid,.contact-grid,.news-detail{grid-template-columns:1fr}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero-stats div:nth-child(2){border:0}
  .nd-side{position:static}
  .cs-banner-inner{flex-direction:column;text-align:center;padding:34px}
}
@media (max-width:640px){
  .nav-toggle{display:flex}
  .main-nav{position:fixed;inset:74px 0 0 0;background:#fff;transform:translateX(100%);transition:.3s;padding:30px}
  .main-nav ul{flex-direction:column;gap:22px;font-size:18px}
  .main-nav.open{transform:translateX(0)}
  .feat-grid,.news-mini-list,.news-list,.cs-pillars,.team-grid{grid-template-columns:1fr}
  .hero-text{padding-top:90px}
  .section{padding:60px 0}
  .cs-panel{width:calc(100vw - 32px)}
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0f1f24;--soft:#162a31;--line:#24414a;--ink:#eaf2f3}
  body{background:var(--bg);color:var(--ink)}
  .site-header,.feat,.news-mini,.news-card,.contact-form{background:#162a31}
  .feat p,.news-mini time,.nc-body p,.about-grid p{color:#a9c2c7}
  .contact-info div{background:#162a31}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto;transition:none!important;animation:none!important}}