/* 尊龙凯时官网 style.css — AI Live Commerce Studio + Global Market Intelligence 视觉系统 */

:root{
  --bg:#f3f4f8;
  --surface:#ffffff;
  --surface-2:#eef0f6;
  --ink:#1a1f2e;
  --ink-soft:#4b5468;
  --ink-mute:#7a8296;
  --border:#e1e4ee;
  --border-strong:#c7ccdc;
  --slate:#232a3d;
  --slate-2:#2f374e;
  --indigo:#4c4fe0;
  --indigo-soft:#eeeeff;
  --blue:#1c6dff;
  --blue-soft:#e8f0ff;
  --cyan:#12b3c4;
  --cyan-soft:#e3f8fa;
  --live:#ff7a3d;
  --live-soft:#fff1e8;
  --ok:#1f9d6f;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 8px 28px rgba(26,31,46,.08);
  --shadow-sm:0 2px 10px rgba(26,31,46,.06);
  --maxw:1180px;
  font-size:16px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:var(--indigo);text-decoration:none}
a:hover{text-decoration:underline}
ul,ol{padding-left:1.2em}
h1,h2,h3,h4{line-height:1.32;margin:0 0 .5em;font-weight:700;color:var(--ink)}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
section{padding:64px 0}
section.tight{padding:44px 0}
.section-head{max-width:760px;margin:0 auto 36px}
.section-head.left{margin:0 0 36px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--indigo);text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:clamp(22px,3.2vw,30px)}
.section-desc{color:var(--ink-soft);font-size:15.5px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ---------- Header / Nav ---------- */
header.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(26,31,46,.96);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 20px;
  display:flex;align-items:center;justify-content:space-between;height:64px;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;letter-spacing:.01em}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--live);box-shadow:0 0 0 4px rgba(255,122,61,.22)}
.brand small{display:block;font-size:10.5px;font-weight:500;color:#aab0c4;letter-spacing:.04em}
nav.main-nav{display:flex;gap:2px}
nav.main-nav a{
  color:#c7cbdc;font-size:14.5px;font-weight:600;padding:9px 13px;border-radius:8px;
}
nav.main-nav a:hover{background:rgba(255,255,255,.08);color:#fff;text-decoration:none}
nav.main-nav a[aria-current="page"]{color:#fff;background:rgba(76,79,224,.35)}
.nav-toggle{
  display:none;background:none;border:1px solid rgba(255,255,255,.24);border-radius:8px;
  width:40px;height:36px;color:#fff;cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:9px;right:9px;height:2px;background:#fff;
}
.nav-toggle span{top:17px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(900px 420px at 12% -10%, rgba(76,79,224,.35), transparent 60%),
    radial-gradient(700px 380px at 100% 0%, rgba(18,179,196,.28), transparent 55%),
    linear-gradient(180deg,var(--slate),var(--ink) 78%);
  color:#eef0fb;padding:64px 0 56px;
}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
  letter-spacing:.05em;text-transform:uppercase;color:#ffb187;
  background:rgba(255,122,61,.14);border:1px solid rgba(255,122,61,.32);
  padding:5px 11px;border-radius:999px;margin-bottom:16px;
}
.hero h1{font-size:clamp(24px,3.4vw,36px);color:#fff;margin-bottom:16px}
.hero p.lead{color:#c3c8dc;font-size:16.5px;max-width:60ch}
.hero-actions{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}
.hero-figure{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:18px;
}
.hero-figure figcaption{font-size:12.5px;color:#9aa0ba;margin-top:10px}

/* ---------- Page hero (subpages) ---------- */
.page-hero{
  background:linear-gradient(160deg,var(--slate) 0%,var(--slate-2) 100%);
  color:#eef0fb;padding:52px 0 44px;
}
.page-hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.page-hero h1{color:#fff;font-size:clamp(22px,3vw,32px)}
.page-hero p.lead{color:#c3c8dc;font-size:16px;max-width:64ch}
.crumb{font-size:13px;color:#9aa0ba;margin-bottom:14px}
.crumb a{color:#c3c8dc}

/* ---------- Buttons / pills ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:10px;
  font-weight:700;font-size:14.5px;border:1px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--indigo);color:#fff}
.btn-primary:hover{background:#3f42c9;text-decoration:none}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);text-decoration:none}
.pill{
  display:inline-block;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
  background:var(--indigo-soft);color:var(--indigo);letter-spacing:.02em;
}
.pill.cyan{background:var(--cyan-soft);color:#0d818f}
.pill.live{background:var(--live-soft);color:#c85a20}

/* ---------- Further reading (延伸阅读) ---------- */
.further-reading{margin-top:22px;padding-top:16px;border-top:1px dashed var(--border)}
.further-reading h4{font-size:12.5px;font-weight:800;color:var(--indigo);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px}
.further-reading ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:7px}
.further-reading li{position:relative;padding-left:16px;font-size:14px}
.further-reading li::before{content:"→";position:absolute;left:0;color:var(--border-strong)}
.further-reading a{font-weight:600}

/* ---------- Flow loop chips (used inside SVGs' surrounding html + fallback lists) ---------- */
.flow-strip{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}
.flow-strip span{
  font-size:12.5px;font-weight:600;color:var(--ink-soft);background:var(--surface-2);
  border:1px solid var(--border);padding:6px 11px;border-radius:999px;
}
.flow-strip span::after{content:"→";margin-left:8px;color:var(--border-strong)}
.flow-strip span:last-child::after{content:""}

/* ---------- Capability grid ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cap-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);
}
.cap-card h3{font-size:16.5px;margin-bottom:8px}
.cap-card p{color:var(--ink-soft);font-size:14.5px;margin-bottom:0}
.cap-card .num{font-size:12px;font-weight:800;color:var(--indigo);letter-spacing:.08em;margin-bottom:8px;display:block}

/* ---------- Core articles (homepage 8) ---------- */
.core-articles{display:flex;flex-direction:column;gap:22px}
article.core{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 26px 22px;box-shadow:var(--shadow-sm);
}
.core-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:12px;font-size:12.5px;color:var(--ink-mute)}
.core-meta time{font-weight:600}
article.core h3{font-size:19px;margin-bottom:12px}
.core-body-grid{display:grid;grid-template-columns:1.4fr .95fr;gap:22px;align-items:start}
.core-summary{color:var(--ink-soft);font-size:15px}
.core-figure{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px}
.core-figure figcaption{font-size:12px;color:var(--ink-mute);margin-top:8px}
article.core details{margin-top:14px;border-top:1px dashed var(--border);padding-top:14px}
article.core summary{
  cursor:pointer;font-weight:700;color:var(--indigo);font-size:14.5px;list-style:none;
  display:flex;align-items:center;gap:6px;
}
article.core summary::-webkit-details-marker{display:none}
article.core summary::before{content:"▸";transition:transform .15s}
article.core details[open] summary::before{transform:rotate(90deg)}
.core-full{color:var(--ink-soft);font-size:15px;margin-top:14px}
.core-full p{margin-bottom:1em}

/* ---------- Observations ---------- */
.obs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.obs-card{
  background:linear-gradient(180deg,var(--indigo-soft),var(--surface) 55%);
  border:1px solid var(--border);border-radius:var(--radius);padding:22px;
}
.obs-card h3{font-size:15.5px;margin-bottom:10px}
.obs-card p{color:var(--ink-soft);font-size:14px;margin-bottom:0}

/* ---------- Trends ---------- */
.trend-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.trend-item{
  display:flex;gap:14px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:16px;
}
.trend-item .idx{
  flex:none;width:30px;height:30px;border-radius:8px;background:var(--slate);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;
}
.trend-item h4{font-size:14.5px;margin-bottom:6px}
.trend-item p{font-size:13.5px;color:var(--ink-soft);margin-bottom:0}

/* ---------- Feed sections (最新内容回流) ---------- */
.feed-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.feed-tabs a{
  font-size:13.5px;font-weight:700;color:var(--ink-soft);background:var(--surface);
  border:1px solid var(--border);padding:7px 13px;border-radius:999px;
}
.feed-tabs a:hover{border-color:var(--indigo);color:var(--indigo);text-decoration:none}
.feed-block{margin-bottom:34px}
.feed-block-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px;gap:12px;flex-wrap:wrap}
.feed-block-head h3{font-size:18px;margin-bottom:0}
.feed-block-head a.more{font-size:13.5px;font-weight:700}
.feed-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feed-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:18px;display:flex;flex-direction:column;gap:8px;
}
.feed-card h4{font-size:15px;margin-bottom:0}
.feed-card h4 a{color:var(--ink)}
.feed-card p{font-size:13.5px;color:var(--ink-soft);margin-bottom:0}

/* ---------- Subpage article list ---------- */
.article-list{display:flex;flex-direction:column;gap:26px;margin-top:8px}
article.sub{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm)}
article.sub h2{font-size:19px}
article.sub .sub-body{color:var(--ink-soft);font-size:15px}
article.sub .sub-body p{margin-bottom:1.05em}

/* ---------- Long-tail QA ---------- */
.qa-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.qa-group{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.qa-group h4{font-size:14px;color:var(--indigo);text-transform:uppercase;letter-spacing:.04em;margin-bottom:12px}
.qa-item{margin-bottom:12px}
.qa-item:last-child{margin-bottom:0}
.qa-item .q{font-weight:700;font-size:14px;margin-bottom:3px}
.qa-item .a{font-size:13.5px;color:var(--ink-soft)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm)}
.faq-item summary{
  cursor:pointer;padding:15px 18px;font-weight:700;font-size:15px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:10px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;color:var(--indigo);flex:none}
.faq-item[open] summary::after{content:"–"}
.faq-item .a{padding:0 18px 16px;color:var(--ink-soft);font-size:14.5px}

/* ---------- About ---------- */
.about-box{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow-sm);
}
.about-box p{color:var(--ink-soft);font-size:15.5px}
.brand-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.brand-facts span{
  font-size:12.5px;font-weight:600;background:var(--surface-2);border:1px solid var(--border);
  padding:6px 12px;border-radius:999px;color:var(--ink-soft);
}

/* ---------- Footer ---------- */
footer.site-footer{background:var(--ink);color:#aeb3c8;padding:44px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:28px}
.footer-brand{color:#fff;font-weight:800;font-size:17px;margin-bottom:8px}
footer.site-footer p{font-size:13.5px;color:#9199b3}
footer.site-footer h5{color:#e7e9f4;font-size:13px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}
footer.site-footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
footer.site-footer a{color:#aeb3c8;font-size:13.5px}
footer.site-footer a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:32px;padding-top:18px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#767c96;
}
.footer-disclaimer{font-size:12px;color:#767c96;line-height:1.6;margin-top:14px;max-width:900px}

/* ---------- Disclaimer banner ---------- */
.disclaimer{
  background:var(--live-soft);border:1px solid #ffd4b8;color:#8a4319;
  border-radius:var(--radius-sm);padding:12px 16px;font-size:13px;margin:20px 0;
}

/* ---------- Utility ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.mt-0{margin-top:0}
.center{text-align:center}
.back-top{
  position:fixed;right:18px;bottom:18px;width:44px;height:44px;border-radius:50%;
  background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;
  border:none;cursor:pointer;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .2s;z-index:40;
}
.back-top.show{opacity:1;pointer-events:auto}

/* ================= Responsive ================= */
@media (max-width:1024px){
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .obs-grid{grid-template-columns:1fr}
  .feed-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .core-body-grid{grid-template-columns:1fr}
  .qa-groups{grid-template-columns:1fr}
}
@media (max-width:768px){
  nav.main-nav{
    position:fixed;top:64px;left:0;right:0;bottom:0;background:rgba(20,24,36,.98);
    flex-direction:column;padding:14px;gap:2px;transform:translateY(-8px);
    opacity:0;pointer-events:none;transition:opacity .18s,transform .18s;overflow-y:auto;
  }
  nav.main-nav.open{opacity:1;pointer-events:auto;transform:translateY(0)}
  nav.main-nav a{padding:13px 14px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-toggle{display:block}
  .hero .wrap,.page-hero .wrap{grid-template-columns:1fr}
  .hero-figure{order:-1}
  .trend-list{grid-template-columns:1fr}
  .grid-2,.grid-4{grid-template-columns:1fr}
  section{padding:44px 0}
}
@media (max-width:430px){
  .cap-grid{grid-template-columns:1fr}
  .feed-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .wrap{padding:0 16px}
  .hero{padding:48px 0 40px}
  article.core{padding:20px 18px}
  .about-box{padding:22px}
}