/* VIRIBIO 诗踏绮品牌官网 - 主样式 */
:root{
  --teal:#0E3B3A; --teal-2:#14605C; --teal-3:#1E8A82;
  --gold:#C8A96A; --gold-2:#E3D3A8;
  --ink:#1D2426; --ink-2:#4A5457; --ink-3:#7A8588;
  --line:#E6E8E7; --bg:#FFFFFF; --bg-2:#F7F8F7; --bg-3:#F1F3F2;
  --radius:10px; --radius-lg:16px;
  --shadow:0 2px 12px rgba(14,59,58,.07);
  --shadow-lg:0 8px 32px rgba(14,59,58,.12);
  --max:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.75;font-size:15px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s}
ul{list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 28px;border-radius:var(--radius);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .22s}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-2);transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.5);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.22)}
.btn-outline{background:transparent;color:var(--teal);border-color:var(--teal)}
.btn-outline:hover{background:var(--teal);color:#fff}

/* ── Header ── */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar{background:var(--teal);color:rgba(255,255,255,.85);font-size:12.5px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar-right a:hover{color:var(--gold-2)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.logo{display:flex;flex-direction:column;line-height:1.1}
.logo-mark{font-size:21px;font-weight:800;letter-spacing:.14em;color:var(--teal)}
.logo-cn{font-size:11px;letter-spacing:.32em;color:var(--gold);margin-top:2px}
.nav{display:flex;gap:26px}
.nav a{font-size:14.5px;font-weight:500;color:var(--ink-2);position:relative;padding:4px 0}
.nav a:hover,.nav a.on{color:var(--teal)}
.nav a.on::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--gold)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn-buy{background:var(--gold);color:#3a2f14;height:36px;padding:0 18px;border-radius:var(--radius);font-size:13.5px;font-weight:700;display:inline-flex;align-items:center}
.btn-buy:hover{background:#d9bc7c}
.lang-select{position:relative}
.lang-btn{display:flex;align-items:center;gap:6px;height:36px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;font-size:13px;color:var(--ink-2);cursor:pointer}
.lang-menu{display:none;position:absolute;right:0;top:42px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);min-width:150px;padding:6px;z-index:200}
.lang-select.open .lang-menu{display:block}
.lang-menu a{display:block;padding:8px 12px;font-size:13.5px;border-radius:6px;color:var(--ink-2)}
.lang-menu a:hover{background:var(--bg-3);color:var(--teal)}
.lang-menu a.cur{color:var(--teal);font-weight:700}
.menu-toggle{display:none;flex-direction:column;gap:4px;width:36px;height:36px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius);background:#fff;cursor:pointer}
.menu-toggle span{width:16px;height:1.6px;background:var(--ink);display:block}

/* ── Hero ── */
.hero{position:relative;background:linear-gradient(135deg,#0E3B3A 0%,#14605C 55%,#1E8A82 100%);color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;opacity:.16;
  background-image:radial-gradient(circle at 20% 30%,rgba(200,169,106,.5),transparent 45%),radial-gradient(circle at 80% 70%,rgba(255,255,255,.25),transparent 40%)}
.hero-inner{position:relative;padding:96px 24px 84px;max-width:900px}
.hero-tag{display:inline-block;font-size:12.5px;letter-spacing:.2em;color:var(--gold-2);border:1px solid rgba(200,169,106,.5);
  padding:5px 14px;border-radius:100px;margin-bottom:22px}
.hero-title{font-size:clamp(30px,4.6vw,52px);line-height:1.25;font-weight:800;letter-spacing:-.01em;margin-bottom:18px}
.hero-sub{font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.86);margin-bottom:32px;max-width:680px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:52px}
.hero-stats{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;border-top:1px solid rgba(255,255,255,.18);padding-top:26px}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats b{font-size:24px;color:var(--gold-2);font-weight:800;line-height:1.2}
.hero-stats span{font-size:12px;color:rgba(255,255,255,.7);margin-top:4px}

/* ── Section ── */
.section{padding:76px 0}
.section-alt{background:var(--bg-2)}
.sec-head{text-align:center;margin-bottom:44px;max-width:760px;margin-left:auto;margin-right:auto}
.sec-title{font-size:clamp(23px,2.8vw,32px);font-weight:800;color:var(--teal);margin-bottom:12px;letter-spacing:-.01em}
.sec-title::after{content:"";display:block;width:44px;height:3px;background:var(--gold);margin:14px auto 0;border-radius:2px}
.sec-sub{font-size:15px;color:var(--ink-2);line-height:1.85}
.sec-more{text-align:center;margin-top:40px}

/* ── Products ── */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:all .25s}
.prod-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--teal-3)}
.prod-img{position:relative;display:block;aspect-ratio:1/1;background:var(--bg-3);overflow:hidden}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.prod-card:hover .prod-img img{transform:scale(1.06)}
.prod-noimg{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--teal),var(--teal-2))}
.prod-noimg span{color:rgba(255,255,255,.35);font-size:20px;font-weight:800;letter-spacing:.2em}
.prod-noimg.big{aspect-ratio:1/1}
.prod-badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.95);color:var(--teal);font-size:11.5px;font-weight:700;
  padding:4px 10px;border-radius:100px}
.prod-info{padding:18px}
.prod-info h3{font-size:15.5px;font-weight:700;line-height:1.5;margin-bottom:8px;min-height:46px}
.prod-info h3 a:hover{color:var(--teal-2)}
.prod-spec{font-size:12.5px;color:var(--ink-3);margin-bottom:6px}
.prod-desc{font-size:13px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:66px}
.prod-buy{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.buy-btn{font-size:12px;padding:6px 12px;border-radius:6px;border:1px solid var(--line);color:var(--ink-2);transition:all .2s}
.buy-btn.tm:hover{background:#ff0036;color:#fff;border-color:#ff0036}
.buy-btn.jd:hover{background:#e1251b;color:#fff;border-color:#e1251b}
.buy-btn.pdd:hover{background:#e02e24;color:#fff;border-color:#e02e24}
.buy-btn.xhs:hover{background:#ff2442;color:#fff;border-color:#ff2442}
.buy-btn.jx:hover{background:#e2231a;color:#fff;border-color:#e2231a}
.empty{text-align:center;color:var(--ink-3);padding:40px}

/* ── Made ── */
.made-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.made-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:all .25s}
.made-item:hover{border-color:var(--gold);box-shadow:var(--shadow)}
.made-num{display:block;font-size:26px;font-weight:800;color:var(--gold);margin-bottom:8px;letter-spacing:.02em}
.made-item p{font-size:14px;color:var(--ink-2);line-height:1.7}

/* ── Channels ── */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.channel-grid.small{grid-template-columns:repeat(2,1fr)}
.channel-card{display:flex;flex-direction:column;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:all .25s}
.channel-card:hover{border-color:var(--teal-3);background:var(--teal);color:#fff;transform:translateY(-3px)}
.channel-card:hover .ch-desc{color:rgba(255,255,255,.7)}
.ch-name{font-size:16px;font-weight:700}
.ch-desc{font-size:12px;color:var(--ink-3);margin-top:4px}

/* ── FAQ ── */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;background:#fff;overflow:hidden}
.faq-item summary{padding:18px 22px;font-size:15px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;color:var(--teal);font-weight:400;flex-shrink:0}
.faq-item[open] summary::after{content:"−"}
.faq-item[open] summary{color:var(--teal);border-bottom:1px solid var(--line)}
.faq-answer{padding:18px 22px;font-size:14.5px;color:var(--ink-2);line-height:1.9;background:var(--bg-2)}

/* ── Page banner ── */
.page-banner{background:linear-gradient(135deg,var(--teal),var(--teal-2));color:#fff;padding:56px 0}
.page-banner h1{font-size:clamp(24px,3.2vw,34px);font-weight:800;margin-bottom:10px}
.crumb{font-size:13px;color:rgba(255,255,255,.7)}
.crumb a:hover{color:var(--gold-2)}
.crumb-bar{padding:22px 0 0}
.crumb-bar .crumb{color:var(--ink-3)}
.crumb-bar .crumb a:hover{color:var(--teal)}

/* ── Product detail ── */
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.pd-main-img{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-3)}
.pd-badge{display:inline-block;font-size:12px;font-weight:700;color:#fff;background:var(--gold);padding:4px 12px;border-radius:100px;margin-bottom:12px}
.pd-title{font-size:clamp(22px,2.8vw,30px);font-weight:800;color:var(--teal);line-height:1.4;margin-bottom:20px}
.pd-meta{width:100%;border-collapse:collapse;margin-bottom:26px;font-size:14px}
.pd-meta th{text-align:left;width:96px;padding:10px 0;color:var(--ink-3);font-weight:500;border-bottom:1px solid var(--line)}
.pd-meta td{padding:10px 0;color:var(--ink);border-bottom:1px solid var(--line)}
.pd-buybox{border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:16px;background:var(--bg-2)}
.pd-buybox h4{font-size:14px;color:var(--teal);margin-bottom:14px}
.pd-buy-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.pd-buy-list .buy-btn{text-align:center;padding:10px;font-size:13.5px;font-weight:600}
.pd-blocks{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.pd-block h2{font-size:16px;color:var(--teal);margin-bottom:12px;padding-bottom:10px;border-bottom:2px solid var(--gold);display:inline-block}
.pd-block p{font-size:14.5px;color:var(--ink-2);line-height:1.9}

/* ── Article ── */
.article{max-width:820px;margin:0 auto;font-size:15.5px;line-height:2;color:var(--ink-2)}
.article .lead{font-size:17px;color:var(--teal);font-weight:600;margin-bottom:24px;padding-left:16px;border-left:3px solid var(--gold)}
.article p{margin-bottom:18px}
.article-title{font-size:clamp(22px,3vw,32px);font-weight:800;color:var(--teal);line-height:1.4;margin-bottom:10px}
.article-time{display:block;font-size:13px;color:var(--ink-3);margin-bottom:28px}
.article-img{width:100%;border-radius:var(--radius);margin-bottom:28px}
.article-body{font-size:15.5px;line-height:2;color:var(--ink-2)}

/* ── News ── */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff;transition:all .25s}
.news-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.news-img{aspect-ratio:16/9;background:var(--bg-3);overflow:hidden}
.news-img img{width:100%;height:100%;object-fit:cover}
.news-body{padding:20px}
.news-body time{font-size:12.5px;color:var(--gold);font-weight:600}
.news-body h3{font-size:16px;font-weight:700;margin:8px 0 10px;line-height:1.5}
.news-body h3 a:hover{color:var(--teal-2)}
.news-body p{font-size:13.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.more{display:inline-block;margin-top:12px;font-size:13.5px;color:var(--teal);font-weight:600}

/* ── Contact ── */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info h2{font-size:22px;color:var(--teal);margin-bottom:12px}
.contact-info>p{font-size:14.5px;color:var(--ink-2);margin-bottom:24px}
.ci-list li{display:flex;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.ci-list li span{color:var(--ink-3);min-width:88px}
.ci-list li a{color:var(--teal);font-weight:600}
.contact-info .channel-grid{margin-top:24px}
.contact-form{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:7px;font-weight:500}
.field input,.field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:var(--radius);
  font-size:14.5px;font-family:inherit;background:#fff;transition:border-color .2s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--teal-3)}
.contact-form .btn{width:100%}
.form-tip{font-size:13.5px;margin-top:12px;text-align:center;min-height:20px}
.form-tip.ok{color:#1a9c5b}
.form-tip.err{color:#d33}

/* ── CTA band ── */
.cta-band{background:linear-gradient(135deg,var(--teal),var(--teal-2));color:#fff;padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:26px;font-weight:800;margin-bottom:8px}
.cta-inner p{color:rgba(255,255,255,.8);font-size:14.5px}
.cta-inner .btn-primary{background:var(--gold);color:#3a2f14}
.cta-inner .btn-primary:hover{background:#d9bc7c}

/* ── Footer ── */
.site-footer{background:var(--teal);color:rgba(255,255,255,.78);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.site-footer .logo-mark{color:#fff;font-size:20px;margin-bottom:14px;display:block}
.f-about p{font-size:13.5px;line-height:1.85;margin-bottom:12px}
.f-contact a{color:var(--gold-2)}
.f-col h4{color:#fff;font-size:14.5px;font-weight:700;margin-bottom:16px}
.f-col ul li{margin-bottom:9px;font-size:13.5px}
.f-col ul li a:hover{color:var(--gold-2)}
.f-meta li{font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;font-size:12.5px;color:rgba(255,255,255,.55)}
.footer-bottom .disclaimer{margin-top:8px;line-height:1.8}

/* ── AI Widget ── */
.ai-widget{position:fixed;right:22px;bottom:22px;z-index:300;font-family:inherit}
.ai-fab{width:54px;height:54px;border-radius:50%;background:var(--teal);color:#fff;border:none;cursor:pointer;
  box-shadow:0 6px 20px rgba(14,59,58,.3);display:flex;align-items:center;justify-content:center;transition:all .25s}
.ai-fab:hover{background:var(--teal-2);transform:scale(1.06)}
.ai-panel{display:none;position:absolute;right:0;bottom:70px;width:360px;max-width:calc(100vw - 32px);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden;flex-direction:column}
.ai-panel.open{display:flex}
.ai-head{background:var(--teal);color:#fff;padding:14px 18px;display:flex;justify-content:space-between;align-items:center;font-size:14.5px}
.ai-head button{background:none;border:none;color:#fff;font-size:22px;cursor:pointer;line-height:1}
.ai-body{padding:16px;max-height:300px;overflow-y:auto;font-size:14px;line-height:1.8}
.ai-msg{margin-bottom:12px;padding:10px 14px;border-radius:12px;max-width:88%}
.ai-msg.bot{background:var(--bg-3);color:var(--ink)}
.ai-msg.me{background:var(--teal);color:#fff;margin-left:auto;text-align:right}
.ai-quick{padding:0 16px 10px;display:flex;flex-wrap:wrap;gap:6px}
.ai-quick button{font-size:12px;padding:5px 10px;border:1px solid var(--line);border-radius:100px;background:#fff;color:var(--ink-2);cursor:pointer}
.ai-quick button:hover{border-color:var(--teal);color:var(--teal)}
.ai-input{display:flex;border-top:1px solid var(--line)}
.ai-input input{flex:1;border:none;padding:14px 16px;font-size:14px;font-family:inherit;outline:none}
.ai-input button{border:none;background:var(--teal);color:#fff;padding:0 20px;font-size:14px;cursor:pointer;font-weight:600}

/* ── 404 ── */
.nf{text-align:center;padding:110px 0}
.nf h1{font-size:88px;font-weight:800;color:var(--teal);line-height:1}
.nf p{font-size:15px;color:var(--ink-2);margin:16px 0 28px}

/* ── Responsive ── */
@media (max-width:1100px){
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .made-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .menu-toggle{display:flex}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;padding:16px 24px;gap:0;box-shadow:var(--shadow-lg)}
  .nav.open{display:flex}
  .nav a{padding:13px 0;border-bottom:1px solid var(--line)}
  .nav a.on::after{display:none}
  .topbar{display:none}
  .hero-inner{padding:64px 24px 56px}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:14px}
  .pd-grid,.contact-grid{grid-template-columns:1fr;gap:32px}
  .pd-blocks{grid-template-columns:1fr;gap:24px}
  .section{padding:52px 0}
  .prod-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .made-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .wrap{padding:0 18px}
  .ai-panel{width:calc(100vw - 36px);right:-4px}
}
@media (max-width:520px){
  .prod-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .lang-btn span{display:none}
  .cta-inner{flex-direction:column;align-items:flex-start}
}