/* ============================================================
   PROPHONIC 普菲尼斯 · 官网主题
   深色 + 暖金：暗底衬托投影光影，产品白卡展示
   ============================================================ */
:root{
  --bg:#0c0c0e; --bg2:#111114; --card:#17171b;
  --gold:#c8a464; --gold-b:#e6c88a; --gold-dim:rgba(200,164,100,.35);
  --text:#f0ece4; --text-2:#9a958c; --text-3:#6b675f;
  --border:rgba(255,255,255,.08); --border-strong:rgba(255,255,255,.16);
  --surface-2:#17171b;
  --serif:"Songti SC","STSong","SimSun",serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;font-size:16px;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 32px}

/* ===== 顶栏 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(12,12,14,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.site-header.scrolled{box-shadow:0 10px 30px rgba(0,0,0,.45)}
.site-header .inner{max-width:1280px;margin:0 auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:baseline;gap:12px}
.logo b{font-size:21px;letter-spacing:.12em;font-weight:700;color:var(--gold-b)}
.logo span{font-size:13.5px;letter-spacing:.38em;color:var(--text-2)}
.site-nav{display:flex;gap:32px;font-size:14.5px;color:var(--text-2)}
.site-nav .nav-item{position:relative}
.site-nav a{position:relative;padding:26px 0;transition:color .25s;display:block}
.site-nav a:hover,.site-nav a.on{color:var(--gold-b)}
.site-nav .dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#141418;border:1px solid var(--border);border-top:2px solid var(--gold);min-width:180px;padding:10px 0;display:none;box-shadow:0 20px 50px rgba(0,0,0,.6)}
.site-nav .nav-item:hover .dropdown{display:block}
.site-nav .dropdown a{padding:9px 22px;font-size:13.5px;white-space:nowrap}
.header-actions{display:flex;align-items:center;gap:18px}
.header-tel{font-size:12.5px;color:var(--text-3);letter-spacing:.05em}
.header-tel b{display:block;font-size:16px;color:var(--gold-b);font-variant-numeric:tabular-nums}
.btn-search{background:none;border:1px solid var(--border-strong);color:var(--text-2);width:34px;height:34px;border-radius:3px;cursor:pointer;font-size:16px;transition:.25s}
.btn-search:hover{border-color:var(--gold);color:var(--gold-b)}
.btn-menu{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px}
.btn-menu span{display:block;width:22px;height:2px;background:var(--text)}
.mobile-nav{position:fixed;inset:0;background:rgba(10,10,12,.97);z-index:99;display:none;flex-direction:column;padding:60px 40px;gap:4px}
.mobile-nav.open{display:flex}
.mobile-nav a{padding:11px 0;border-bottom:1px solid var(--border);color:var(--text-2)}
.mobile-nav a.lv2{padding-left:20px;font-size:14px}
.mobile-nav .btn-close{position:absolute;top:20px;right:24px;background:none;border:0;color:var(--text);font-size:22px;cursor:pointer}

/* ===== Hero ===== */
.hero{position:relative;padding:170px 0 80px;overflow:hidden}
.hero-bg{position:absolute;inset:0;pointer-events:none;background:radial-gradient(1100px 520px at 78% 14%, rgba(200,164,100,.15), transparent 62%),radial-gradient(700px 380px at 10% 92%, rgba(200,164,100,.06), transparent 60%)}
.beam{position:absolute;right:6%;top:-60px;width:560px;height:900px;pointer-events:none;background:linear-gradient(168deg, rgba(230,200,138,.13) 0%, rgba(230,200,138,.045) 34%, transparent 66%);clip-path:polygon(46% 0,54% 0,100% 100%,0 100%);filter:blur(2px)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.kicker{display:flex;align-items:center;gap:14px;color:var(--gold);font-size:13px;letter-spacing:.5em;margin-bottom:26px}
.kicker::before{content:"";width:44px;height:1px;background:var(--gold)}
.hero h1{font-family:var(--serif);font-weight:600;font-size:clamp(38px,4.4vw,56px);line-height:1.28;letter-spacing:.04em}
.hero h1 em{font-style:normal;color:var(--gold-b)}
.hero .lead{margin-top:26px;max-width:520px;color:var(--text-2);font-size:17px}
.hero-cta{margin-top:42px;display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.btn-gold{display:inline-flex;align-items:center;gap:10px;padding:13px 32px;border:1px solid var(--gold);color:var(--gold-b);font-size:15px;letter-spacing:.14em;transition:.3s;background:transparent}
.btn-gold:hover{background:var(--gold);color:#171310}
.btn-ghost{padding:13px 6px;color:var(--text-2);font-size:15px;letter-spacing:.1em;border-bottom:1px solid transparent;transition:.3s}
.btn-ghost:hover{color:var(--text);border-color:var(--text-3)}
.hero-visual{position:relative}
.hero-product{position:relative;background:#fff;border-radius:6px;padding:34px;box-shadow:0 40px 90px -30px rgba(0,0,0,.85),0 0 0 1px rgba(255,255,255,.06)}
.hero-product::after{content:"";position:absolute;left:10%;right:10%;bottom:-26px;height:60px;background:radial-gradient(50% 100% at 50% 0, rgba(200,164,100,.28), transparent 72%);filter:blur(6px)}
.hero-product img{width:100%}
.hero-tag{position:absolute;right:-14px;top:-14px;background:var(--gold);color:#171310;font-size:12.5px;letter-spacing:.14em;padding:7px 16px;font-weight:600;z-index:2}
/* 数据条 */
.stats{margin-top:80px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:30px 10px;text-align:center;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:26%;bottom:26%;width:1px;background:var(--border)}
.stat b{font-size:34px;font-weight:600;color:var(--gold-b);font-variant-numeric:tabular-nums}
.stat b i{font-style:normal;font-size:16px;margin-left:4px;color:var(--text-2)}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--text-2);letter-spacing:.1em}

/* ===== 区块通用 ===== */
.section{padding:92px 0}
.sec-alt{background:var(--bg2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.h-tlt{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:50px}
.h-tlt .t span{display:block;font-family:var(--serif);font-size:32px;font-weight:600;letter-spacing:.06em}
.h-tlt .t em{display:block;font-style:normal;font-size:12.5px;letter-spacing:.4em;color:var(--gold);margin-top:10px}
.h-tlt .more{color:var(--text-2);font-size:14px;letter-spacing:.1em;transition:.25s}
.h-tlt .more:hover{color:var(--gold-b)}

/* 产品网格（首页） */
.p-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.p-card{background:#fff;color:#1c1a17;border-radius:5px;overflow:hidden;transition:transform .35s, box-shadow .35s;display:block}
.p-card:hover{transform:translateY(-6px);box-shadow:0 30px 60px -22px rgba(200,164,100,.35)}
.p-card .pic{aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;padding:16px;background:#fff}
.p-card .pic img{max-height:100%;object-fit:contain}
.p-card .info{padding:16px 18px 18px;border-top:1px solid #ececec}
.p-card .series{font-size:11.5px;letter-spacing:.24em;color:#a08448;margin-bottom:5px}
.p-card h3{font-size:15.5px;font-weight:600;letter-spacing:.01em;line-height:1.45}

/* 核心技术 */
.t-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.t-card{background:var(--card);border:1px solid var(--border);padding:34px 28px;border-radius:5px;transition:.3s;position:relative;overflow:hidden}
.t-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:2px;background:linear-gradient(90deg,var(--gold),transparent);opacity:0;transition:.3s}
.t-card:hover{border-color:var(--gold-dim);transform:translateY(-4px)}
.t-card:hover::before{opacity:1}
.t-card .no{font-size:13px;color:var(--gold);letter-spacing:.2em}
.t-card h3{margin:14px 0 10px;font-size:19px;font-weight:600}
.t-card p{font-size:14px;color:var(--text-2)}

/* 解决方案 */
.s-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.s-card{position:relative;padding:96px 22px 24px;border:1px solid var(--border);border-radius:5px;background:linear-gradient(180deg, rgba(200,164,100,.05), rgba(200,164,100,0) 55%),var(--card);overflow:hidden;transition:.3s;display:block}
.s-card::after{content:"";position:absolute;right:-30px;top:-30px;width:130px;height:130px;border-radius:50%;background:radial-gradient(circle, rgba(230,200,138,.18), transparent 70%)}
.s-card:hover{border-color:var(--gold-dim);transform:translateY(-5px)}
.s-card b{display:block;font-size:17px;font-weight:600;letter-spacing:.04em}
.s-card span{display:block;margin-top:8px;font-size:13px;color:var(--text-2)}

/* 关于 */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.about-grid .quote{font-family:var(--serif);font-size:23px;line-height:1.9;letter-spacing:.04em;border-left:2px solid var(--gold);padding-left:28px}
.about-grid .quote small{display:block;margin-top:18px;font-size:14px;color:var(--text-2);font-family:"PingFang SC","Microsoft YaHei",sans-serif}
.about-h2{font-family:var(--serif);font-size:30px;font-weight:600;margin-bottom:22px;letter-spacing:.04em}
.about-grid p{color:var(--text-2);font-size:15.5px}
.about-grid p.mt{margin-top:16px}

/* 新闻 */
.n-list{border-top:1px solid var(--border)}
.n-item{display:grid;grid-template-columns:110px 1fr auto;gap:30px;align-items:baseline;padding:24px 8px;border-bottom:1px solid var(--border);transition:.25s}
.n-item:hover{background:rgba(200,164,100,.04)}
.n-item time{font-size:14px;color:var(--text-3);font-variant-numeric:tabular-nums}
.n-item h3{font-size:16px;font-weight:500;transition:.25s;line-height:1.6}
.n-item:hover h3{color:var(--gold-b)}
.n-item .cat{font-size:12px;color:var(--gold);border:1px solid var(--gold-dim);padding:3px 12px;letter-spacing:.2em;border-radius:2px;white-space:nowrap}

/* CTA */
.cta{text-align:center;padding:104px 0;background:radial-gradient(720px 320px at 50% 108%, rgba(200,164,100,.18), transparent 70%),var(--bg);border-top:1px solid var(--border)}
.cta h2{font-family:var(--serif);font-size:34px;font-weight:600;letter-spacing:.08em}
.cta p{margin:18px auto 38px;max-width:560px;color:var(--text-2)}

/* ===== 内页 ===== */
.page-hero{background:linear-gradient(180deg, rgba(200,164,100,.08), rgba(200,164,100,0)),var(--bg2);border-bottom:1px solid var(--border);padding:150px 0 44px}
.page-hero h1{font-family:var(--serif);font-size:32px;font-weight:600;letter-spacing:.05em}
.page-hero .en{font-size:12px;letter-spacing:.4em;color:var(--gold);margin-top:10px}
.crumb{margin-top:18px;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--gold-b)}
.page-body{padding:60px 0 90px}
.inner-layout{display:grid;grid-template-columns:250px 1fr;gap:44px;align-items:start}
/* 侧栏 */
.side-bar{background:var(--card);border:1px solid var(--border);border-radius:5px;overflow:hidden;position:sticky;top:96px}
.side-hd{padding:22px 24px;border-bottom:1px solid var(--border);background:linear-gradient(135deg, rgba(200,164,100,.12), transparent)}
.side-hd p{font-size:17px;font-weight:600;letter-spacing:.06em}
.side-hd span{font-size:11px;letter-spacing:.3em;color:var(--gold);text-transform:uppercase}
.side-bd{padding:10px 0}
.side-item{display:flex;justify-content:space-between;align-items:center;padding:12px 24px;font-size:14px;color:var(--text-2);border-left:2px solid transparent;transition:.25s}
.side-item:hover,.side-item.on{color:var(--gold-b);border-left-color:var(--gold);background:rgba(200,164,100,.06)}
.side-item i{font-style:normal;color:var(--text-3)}
/* 文章列表 */
.art-list{border-top:1px solid var(--border)}
.art-item{display:flex;justify-content:space-between;align-items:baseline;gap:24px;padding:20px 6px;border-bottom:1px solid var(--border)}
.art-item .t{font-size:15.5px;font-weight:500;transition:.25s;line-height:1.6}
.art-item .t:hover{color:var(--gold-b)}
.art-item .d{font-size:13px;color:var(--text-3);white-space:nowrap;font-variant-numeric:tabular-nums}
.empty-tip{padding:70px 20px;text-align:center;color:var(--text-3);border:1px dashed var(--border-strong);border-radius:5px}
/* 分页 */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:40px;flex-wrap:wrap}
.pagination a,.pagination .cur{min-width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;border:1px solid var(--border-strong);font-size:14px;color:var(--text-2);transition:.25s;border-radius:3px}
.pagination a:hover{border-color:var(--gold);color:var(--gold-b)}
.pagination .cur{background:var(--gold);border-color:var(--gold);color:#171310;font-weight:600}
/* 详情 */
.detail-wrap{background:var(--card);border:1px solid var(--border);border-radius:5px;padding:38px 42px}
.detail-meta{display:flex;gap:26px;font-size:13px;color:var(--text-3);padding-bottom:22px;border-bottom:1px solid var(--border);margin-bottom:28px;flex-wrap:wrap}
.detail-body{font-size:15.5px;color:#c9c4ba;line-height:2}
.detail-body h2,.detail-body h3,.detail-body h4{color:var(--text);margin:30px 0 14px;font-weight:600}
.detail-body h2{font-size:22px;border-left:3px solid var(--gold);padding-left:14px}
.detail-body h3{font-size:18px}
.detail-body h2:first-child,.detail-body h3:first-child,.detail-body p:first-child{margin-top:0}
.detail-body p{margin:12px 0}
.detail-body ul,.detail-body ol{margin:12px 0 12px 22px}
.detail-body li{margin:6px 0}
.detail-body img{max-width:100%;height:auto;margin:18px auto;border-radius:4px}
.detail-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.detail-body th,.detail-body td{border:1px solid var(--border-strong);padding:9px 12px;text-align:left}
.detail-body th{background:rgba(200,164,100,.1);color:var(--gold-b);font-weight:600}
.detail-body tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.detail-body blockquote{border-left:3px solid var(--gold-dim);padding:10px 18px;margin:16px 0;color:var(--text-2);background:rgba(200,164,100,.04)}
.detail-body hr{border:0;border-top:1px solid var(--border);margin:28px 0}
.detail-body strong{color:var(--text)}
.detail-body a{color:var(--gold-b);border-bottom:1px solid var(--gold-dim)}
.pn{margin-top:34px;padding-top:22px;border-top:1px solid var(--border);font-size:14px;color:var(--text-2);display:grid;gap:8px}
.pn a:hover{color:var(--gold-b)}
/* 产品列表 */
.pro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pro-grid .pro-card{background:#fff;color:#1c1a17;border-radius:5px;overflow:hidden;transition:.35s;display:block}
.pro-grid .pro-card:hover{transform:translateY(-6px);box-shadow:0 30px 60px -22px rgba(200,164,100,.35)}
.pro-grid .pic{aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;padding:16px;background:#fff}
.pro-grid .pic img{max-height:100%;object-fit:contain}
.pro-grid .info{padding:15px 18px 17px;border-top:1px solid #ececec;text-align:center}
.pro-grid .name{font-size:14.5px;font-weight:600}
/* 产品详情 */
.pro-show{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin-bottom:12px}
.pro-show .pic{background:#fff;border-radius:5px;padding:26px}
.pro-show .name{font-size:24px;font-weight:600;font-family:var(--serif);letter-spacing:.02em}
.pro-show .intro{margin-top:14px;color:var(--text-2);font-size:14.5px}
.pro-show .btn-primary{display:inline-block;margin-top:24px;padding:11px 30px;background:var(--gold);color:#171310;font-size:14px;font-weight:600;letter-spacing:.1em;border-radius:3px;transition:.25s}
.pro-show .btn-primary:hover{background:var(--gold-b)}
.sec-tlt{font-family:var(--serif);font-size:20px;font-weight:600;margin:34px 0 18px;padding-left:14px;border-left:3px solid var(--gold)}
.param-table{width:100%;border-collapse:collapse;font-size:14px}
.param-table td{border:1px solid var(--border-strong);padding:10px 14px}
.param-table td.k{width:32%;color:var(--text-2);background:rgba(200,164,100,.05)}
/* 留言表单 */
.msg-form{display:grid;gap:14px;margin-top:10px}
.msg-form input,.msg-form textarea,.msg-form select{width:100%;padding:13px 16px;background:var(--surface-2);color:var(--text);border:1px solid var(--border-strong);border-radius:4px;font-size:14px;outline:none;transition:.25s;font-family:inherit}
.msg-form input:focus,.msg-form textarea:focus{border-color:var(--gold)}
.msg-form .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.msg-form textarea{min-height:120px;resize:vertical}
.msg-form button{padding:13px;background:var(--gold);border:0;color:#171310;font-weight:600;font-size:15px;letter-spacing:.2em;cursor:pointer;border-radius:3px;transition:.25s}
.msg-form button:hover{background:var(--gold-b)}
.form-tlt{font-family:var(--serif);font-size:20px;margin:40px 0 6px;padding-left:14px;border-left:3px solid var(--gold)}

/* ===== 页脚 ===== */
.site-footer{background:#09090b;border-top:1px solid var(--border);padding:60px 0 36px}
.site-footer .cols{max-width:1200px;margin:0 auto;padding:0 32px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:44px}
.site-footer h4{font-size:13.5px;letter-spacing:.3em;color:var(--gold);margin-bottom:18px;font-weight:500}
.site-footer .links a,.site-footer .contact p{display:block;font-size:14px;color:var(--text-2);margin-bottom:9px}
.site-footer .links a:hover{color:var(--gold-b)}
.site-footer .contact b{color:var(--text-3);font-weight:400}
.site-footer .about-txt{font-size:13.5px;color:var(--text-3);margin-top:14px;max-width:280px;line-height:1.8}
.foot-tel{font-size:22px;color:var(--gold-b);font-weight:600;font-variant-numeric:tabular-nums;margin-bottom:12px}
.site-footer .copy{max-width:1200px;margin:48px auto 0;padding:22px 32px 0;border-top:1px solid var(--border);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:var(--text-3);font-size:13px}
.site-footer .copy a:hover{color:var(--gold-b)}
.site-footer .sep{margin:0 10px;opacity:.4}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .site-nav{display:none}
  .btn-menu{display:flex}
  .hero-grid,.about-grid{grid-template-columns:1fr;gap:44px}
  .p-grid{grid-template-columns:repeat(2,1fr)}
  .t-grid{grid-template-columns:repeat(2,1fr)}
  .s-grid{grid-template-columns:repeat(2,1fr)}
  .pro-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat+.stat::before{display:none}
  .inner-layout{grid-template-columns:1fr}
  .side-bar{position:static}
  .site-footer .cols{grid-template-columns:1fr 1fr}
  .n-item{grid-template-columns:1fr;gap:6px}
  .detail-wrap{padding:26px 22px}
  .pro-show{grid-template-columns:1fr}
}
@media (max-width:600px){
  .p-grid,.t-grid,.s-grid,.pro-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .container{padding:0 20px}
  .hero{padding-top:130px}
}