/* ===== 玮度科技 · 官网共享样式（深色霓虹科技风） ===== */
:root{
  --bg:#05060c;
  --bg-2:#0a0d18;
  --bg-soft:#0d1120;
  --text:#e9ecf6;
  --muted:#9298b3;
  --brand:#ff9f2e;
  --brand-deep:#f0760c;
  --amber:#ffb84d;
  --cyan:#22d3ee;
  --violet:#8b5cf6;
  --grad:linear-gradient(120deg,#ffd27a 0%,#ff9f2e 45%,#ff5e62 100%);
  --grad-cyan:linear-gradient(120deg,#22d3ee 0%,#8b5cf6 100%);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --ok:#34d399;
  --radius:22px;
  --shadow:0 20px 60px rgba(0,0,0,.55);
  --glow:0 0 24px rgba(255,159,46,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;color-scheme:dark}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.7;
  -webkit-font-smoothing:antialiased;font-size:16px;overflow-x:hidden;
}
/* 背景：深空底色 + 双光晕 */
body{
  background:
    radial-gradient(ellipse 80% 60% at 15% -10%, rgba(255,159,46,.10), transparent 60%),
    radial-gradient(ellipse 70% 55% at 85% 105%, rgba(34,211,238,.08), transparent 60%),
    radial-gradient(ellipse 60% 40% at 70% 20%, rgba(139,92,246,.06), transparent 60%),
    #05060c;
  background-attachment:fixed;
}
/* 网格线（中心淡出） */
body::before{
  content:'';position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(ellipse 90% 80% at 50% 40%, #000 20%, transparent 78%);
  mask-image:radial-gradient(ellipse 90% 80% at 50% 40%, #000 20%, transparent 78%);
}
/* 粒子画布（由 effects.js 注入） */
#bg-canvas{position:fixed;inset:0;z-index:0;pointer-events:none}
.mouse-glow{
  position:fixed;top:0;left:0;width:520px;height:520px;pointer-events:none;z-index:0;border-radius:50%;
  background:radial-gradient(circle, rgba(255,159,46,.12), rgba(34,211,238,.06) 40%, transparent 70%);
  mix-blend-mode:screen;will-change:transform;
}
/* 内容层置于背景之上 */
header,section,footer,.crumb{position:relative;z-index:1}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 clamp(20px,5vw,32px)}
img{max-width:100%;display:block}

/* ===== 导航（深色玻璃） ===== */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(5,6,12,.72);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.5px}
.logo .mark{
  width:34px;height:34px;border-radius:9px;color:#fff;font-size:16px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;background:var(--grad);
  box-shadow:0 0 18px rgba(255,159,46,.55);
}
.logo small{font-size:12px;color:var(--muted);font-weight:500;letter-spacing:0;margin-left:2px}
.nav-links{display:flex;gap:clamp(16px,2.5vw,28px);font-size:15px;color:var(--muted)}
.nav-links a{transition:color .2s,text-shadow .2s}
.nav-links a:hover{color:var(--text);text-shadow:0 0 12px rgba(255,159,46,.5)}
.nav .btn{padding:9px 18px;font-size:14px;min-height:40px}

/* ===== 按钮（霓虹发光 + 流光） ===== */
.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:15px 30px;border-radius:14px;font-weight:700;font-size:16px;cursor:pointer;
  color:#fff;background:var(--grad);box-shadow:0 0 22px rgba(255,159,46,.45), 0 10px 26px rgba(255,122,24,.28);
  border:none;transition:transform .16s,box-shadow .16s;min-height:50px;text-align:center;
}
.btn::after{
  content:'';position:absolute;top:0;left:-80%;width:50%;height:100%;
  background:linear-gradient(100deg, transparent, rgba(255,255,255,.42), transparent);
  transform:skewX(-20deg);animation:shine 3.2s ease-in-out infinite;
}
@keyframes shine{0%{left:-80%}55%,100%{left:190%}}
.btn:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(255,159,46,.7), 0 16px 34px rgba(255,122,24,.4)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:rgba(255,255,255,.03);color:var(--text);border:1px solid var(--line-strong);box-shadow:none}
.btn.ghost::after{display:none}
.btn.ghost:hover{border-color:var(--brand);color:var(--brand);box-shadow:0 0 20px rgba(255,159,46,.25)}
.btn.sm{padding:10px 18px;font-size:14px;min-height:40px;border-radius:11px}

/* ===== 通用 section ===== */
section{padding:clamp(52px,8vw,96px) 0}
section.alt{background:linear-gradient(180deg, rgba(255,255,255,.02), transparent)}
.sec-head{text-align:center;max-width:700px;margin:0 auto clamp(34px,5vw,50px)}
.sec-head h2{font-size:clamp(25px,4.8vw,38px);font-weight:800;line-height:1.3;letter-spacing:-.5px}
.sec-head p{color:var(--muted);margin-top:14px;font-size:clamp(15px,2.1vw,17px);line-height:1.8}
.kicker{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:4px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:12px;text-shadow:0 0 14px rgba(34,211,238,.55);
}
.brand-txt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== 卡片（霓虹边框 hover 发光） ===== */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:clamp(16px,2.5vw,24px)}
.card{
  position:relative;background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:var(--radius);padding:clamp(24px,3.5vw,32px);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.card::before{
  content:'';position:absolute;inset:0;border-radius:var(--radius);padding:1px;pointer-events:none;
  background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .25s;
}
.card:hover{transform:translateY(-4px);border-color:transparent;box-shadow:0 0 30px rgba(255,159,46,.18), inset 0 0 22px rgba(255,159,46,.05)}
.card:hover::before{opacity:1}
.card .ico{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;
  background:rgba(255,159,46,.12);border:1px solid rgba(255,159,46,.25);box-shadow:0 0 14px rgba(255,159,46,.18);
}
.card h3{font-size:19px;margin:18px 0 8px;font-weight:700}
.card p{color:var(--muted);font-size:15px;line-height:1.75}

/* ===== 状态标签 ===== */
.tag{display:inline-block;font-size:11px;font-weight:700;padding:3px 11px;border-radius:999px;white-space:nowrap}
.tag.live{background:rgba(52,211,153,.1);color:var(--ok);border:1px solid rgba(52,211,153,.4);box-shadow:0 0 12px rgba(52,211,153,.25)}
.tag.soon{background:rgba(255,159,46,.1);color:var(--brand);border:1px solid rgba(255,159,46,.4);box-shadow:0 0 12px rgba(255,159,46,.2)}

/* ===== 门户 Hero ===== */
.hero{padding:clamp(56px,9vw,108px) 0 clamp(40px,6vw,60px);text-align:center;position:relative}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--cyan);
  background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.35);padding:7px 16px;border-radius:999px;
  text-shadow:0 0 12px rgba(34,211,238,.5);box-shadow:0 0 18px rgba(34,211,238,.18);
  animation:eyeglow 2.6s ease-in-out infinite;
}
@keyframes eyeglow{0%,100%{box-shadow:0 0 14px rgba(34,211,238,.18)}50%{box-shadow:0 0 30px rgba(34,211,238,.55)}}
.hero h1{
  font-size:clamp(34px,7.4vw,60px);line-height:1.18;font-weight:800;margin:22px 0 16px;letter-spacing:-1px;
  background:linear-gradient(120deg,#fff 0%,#ffd27a 30%,#ff9f2e 50%,#ff5e62 70%,#ff9f2e 85%,#fff 100%);
  background-size:300% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 26px rgba(255,159,46,.28));
  animation:gradflow 6s linear infinite;
}
@keyframes gradflow{0%{background-position:0% 50%}100%{background-position:300% 50%}}
.hero .sub{font-size:clamp(16px,2.4vw,19px);color:var(--muted);max-width:640px;margin:0 auto;line-height:1.8}
.hero .cta-row{display:flex;gap:14px;margin-top:30px;justify-content:center;flex-wrap:wrap}
.hero .stats{display:flex;gap:clamp(20px,4vw,48px);justify-content:center;margin-top:40px;flex-wrap:wrap}
.hero .stat{text-align:center;padding:14px 22px;border-radius:16px;background:rgba(255,255,255,.02);border:1px solid var(--line)}
.hero .stat .n{
  font-size:clamp(28px,4.4vw,40px);font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 14px rgba(255,159,46,.4));
}
.hero .stat .l{font-size:13px;color:var(--muted);margin-top:2px}

/* ===== 产品分类区 ===== */
.cat-title{display:flex;align-items:center;gap:12px;margin-bottom:clamp(20px,3vw,28px)}
.cat-title h3{font-size:clamp(19px,3vw,24px);font-weight:800;display:flex;align-items:center;gap:10px}
.cat-title h3::before{content:'';width:6px;height:22px;border-radius:3px;background:var(--grad);box-shadow:0 0 12px rgba(255,159,46,.6)}
.cat-title .line{flex:1;height:1px;background:linear-gradient(90deg, var(--line-strong), transparent)}
.cat-title .cnt{font-size:13px;color:var(--muted);font-weight:600}

/* 产品卡片（门户） */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:clamp(16px,2.5vw,24px)}
.prod{
  position:relative;background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:20px;padding:24px;
  display:flex;flex-direction:column;transition:transform .22s,box-shadow .22s,border-color .22s;overflow:hidden;
}
.prod::before{
  content:'';position:absolute;inset:0;border-radius:20px;padding:1px;pointer-events:none;
  background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .25s;
}
.prod:hover{transform:translateY(-4px);border-color:transparent;box-shadow:0 0 32px rgba(255,159,46,.2), inset 0 0 24px rgba(255,159,46,.05)}
.prod:hover::before{opacity:1}
.prod .p-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.prod .p-ico{font-size:32px;filter:drop-shadow(0 0 10px rgba(255,159,46,.3))}
.prod h4{font-size:18px;font-weight:700;margin-bottom:6px}
.prod .p-desc{color:var(--muted);font-size:14px;line-height:1.65;flex:1}
.prod .p-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.prod .p-price{font-size:13px;color:var(--muted);font-weight:600}
.prod .p-more{font-size:13px;font-weight:700;color:var(--brand)}

/* ===== 产品页 ===== */
.crumb{padding:18px 0 0;font-size:13px;color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.prod-hero{padding:clamp(30px,5vw,56px) 0 clamp(20px,3vw,32px)}
.prod-hero .ph-tag{display:inline-block;margin-bottom:14px}
.prod-hero h1{
  font-size:clamp(30px,6vw,48px);font-weight:800;letter-spacing:-.5px;line-height:1.22;
  background:linear-gradient(120deg,#fff 0%,#ffd27a 30%,#ff9f2e 55%,#ff5e62 80%,#ff9f2e 100%);
  background-size:300% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 22px rgba(255,159,46,.26));
  animation:gradflow 6s linear infinite;
}
.prod-hero .ph-sub{font-size:clamp(16px,2.2vw,19px);color:var(--muted);margin-top:14px;max-width:660px;line-height:1.8}
.prod-hero .ph-meta{display:flex;gap:clamp(16px,3vw,32px);margin-top:26px;flex-wrap:wrap}
.prod-hero .ph-meta .m{padding:12px 18px;border-radius:14px;background:rgba(255,255,255,.025);border:1px solid var(--line)}
.prod-hero .ph-meta .m .k{font-size:12px;color:var(--muted)}
.prod-hero .ph-meta .m .v{font-size:16px;font-weight:700;color:var(--text)}

/* ===== 对比/亮点 ===== */
.pill-row{display:flex;flex-wrap:wrap;gap:12px}
.pill{
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:999px;padding:9px 20px;font-size:14.5px;font-weight:600;
  transition:.2s;
}
.pill:hover{border-color:rgba(255,159,46,.5);color:var(--brand);box-shadow:0 0 16px rgba(255,159,46,.2)}

/* ===== FAQ ===== */
.faq{max-width:720px;margin:0 auto}
.faq-item{background:rgba(255,255,255,.025);border:1px solid var(--line);border-radius:16px;margin-bottom:12px;overflow:hidden}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:17px 24px;font-weight:700;font-size:16px;cursor:pointer;gap:12px}
.faq-q .plus{font-size:22px;color:var(--brand);font-weight:400;flex-shrink:0;transition:transform .2s}
.faq-a{display:none;padding:0 24px 20px;color:var(--muted);font-size:15px;line-height:1.8}
.faq-item.open .faq-a{display:block}
.faq-item.open .plus{transform:rotate(45deg)}

/* ===== 底部 CTA ===== */
.final{
  text-align:center;padding:clamp(44px,7vw,68px) clamp(20px,4vw,40px);
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.final::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 60% 50% at 50% 0%, rgba(255,159,46,.12), transparent 70%);
}
.final h2{font-size:clamp(24px,4.6vw,34px);font-weight:800}
.final p{font-size:clamp(15px,2.2vw,17px);margin:14px 0 26px;color:var(--muted);position:relative}

footer{border-top:1px solid var(--line);padding:clamp(30px,4vw,44px) 0 48px;color:var(--muted);font-size:13px;text-align:center;line-height:2}
footer .beian a{color:var(--muted)}
footer .beian a:hover{color:var(--text)}

/* ===== AI 客服（右下角悬浮） ===== */
.fab{
  position:fixed;right:22px;bottom:22px;z-index:900;width:62px;height:62px;border-radius:50%;
  background:var(--grad);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;
  font-size:26px;box-shadow:0 0 28px rgba(255,159,46,.65);transition:transform .2s;
  animation:pulse 2.4s ease-in-out infinite;
}
.fab::before{
  content:'';position:absolute;inset:-7px;border-radius:50%;pointer-events:none;
  background:conic-gradient(from 0deg, transparent 0%, #ff9f2e 22%, #22d3ee 42%, transparent 62%);
  -webkit-mask:radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2.5px));
  mask:radial-gradient(farthest-side, transparent calc(100% - 3px), #000 calc(100% - 2.5px));
  animation:spin 2.6s linear infinite;
}
.fab::after{
  content:'';position:absolute;inset:0;border-radius:50%;pointer-events:none;
  border:2px solid rgba(255,159,46,.7);
  animation:ripple 2.2s ease-out infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 0 22px rgba(255,159,46,.5)}50%{box-shadow:0 0 44px rgba(255,159,46,.9)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes ripple{0%{transform:scale(1);opacity:.9}100%{transform:scale(2.1);opacity:0}}
.fab:hover{transform:scale(1.1)}
.fab-label{
  position:fixed;right:94px;bottom:40px;z-index:899;pointer-events:none;
  background:rgba(5,6,12,.86);border:1px solid rgba(255,159,46,.45);border-radius:12px;
  color:#ffd9a8;padding:8px 14px;font-size:13px;font-weight:700;white-space:nowrap;
  box-shadow:0 0 18px rgba(255,159,46,.35);backdrop-filter:blur(8px);
  animation:labelpulse 2.4s ease-in-out infinite;
}
.fab-label::after{
  content:'';position:absolute;right:-5px;top:50%;transform:translateY(-50%);
  border:5px solid transparent;border-left-color:rgba(255,159,46,.55);
}
@keyframes labelpulse{0%,100%{box-shadow:0 0 14px rgba(255,159,46,.3)}50%{box-shadow:0 0 30px rgba(255,159,46,.6)}}
.chat-panel{
  position:fixed;right:22px;bottom:90px;z-index:901;width:380px;max-width:92vw;height:560px;max-height:74vh;
  background:#0a0d18;border:1px solid var(--line-strong);border-radius:18px;box-shadow:0 20px 60px rgba(0,0,0,.6), 0 0 30px rgba(255,159,46,.12);
  display:none;flex-direction:column;overflow:hidden;
}
.chat-panel.open{display:flex;animation:pop .25s cubic-bezier(.2,.9,.3,1.15)}
@keyframes pop{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.chat-head{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.03)}
.chat-head .c-avatar{width:38px;height:38px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;flex-shrink:0;box-shadow:0 0 14px rgba(255,159,46,.5)}
.chat-head .c-name{font-weight:700;font-size:15px}
.chat-head .c-st{font-size:12px;color:var(--ok);display:flex;align-items:center;gap:5px}
.chat-head .c-st::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok)}
.chat-head .c-close{margin-left:auto;width:30px;height:30px;border-radius:50%;border:none;background:rgba(255,255,255,.08);color:#aab;font-size:16px;cursor:pointer;flex-shrink:0;line-height:1}
.chat-body{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px}
.c-msg{max-width:85%;padding:10px 13px;border-radius:13px;font-size:14.5px;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.c-msg.bot{background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:4px 13px 13px 13px;align-self:flex-start;color:var(--text)}
.c-msg.user{background:rgba(255,159,46,.16);border:1px solid rgba(255,159,46,.35);border-radius:13px 13px 4px 13px;align-self:flex-end;color:#ffd9a8}
.c-msg .typing{display:inline-flex;gap:4px;padding:4px 0}
.c-msg .typing i{width:6px;height:6px;border-radius:50%;background:var(--amber);animation:blink 1.2s infinite}
.c-msg .typing i:nth-child(2){animation-delay:.2s}
.c-msg .typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,60%,100%{opacity:.25}30%{opacity:1}}
.chat-sug{display:flex;flex-wrap:wrap;gap:8px;padding:0 16px 10px}
.chat-sug button{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:999px;padding:6px 13px;font-size:13px;color:var(--muted);cursor:pointer;transition:.15s}
.chat-sug button:hover{border-color:var(--brand);color:var(--brand)}
.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:rgba(255,255,255,.02)}
.chat-input input{flex:1;border:1px solid var(--line);border-radius:11px;padding:11px 14px;font-size:14.5px;outline:none;font-family:inherit;background:#05060c;color:var(--text)}
.chat-input input:focus{border-color:var(--brand);box-shadow:0 0 12px rgba(255,159,46,.2)}
.chat-input button{background:var(--grad);color:#fff;border:none;border-radius:11px;padding:0 18px;font-size:14px;font-weight:700;cursor:pointer;flex-shrink:0}

/* ===== 特效（克制） ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ===== 响应式 ===== */
@media(max-width:720px){
  body{font-size:15px}
  .nav{height:58px}
  .logo{font-size:16px}
  .nav-links{display:none}
  .card-grid{grid-template-columns:1fr;gap:14px}
  .prod-grid{grid-template-columns:1fr;gap:14px}
  .hero h1{letter-spacing:-.5px}
  .hero .cta-row{flex-direction:column;gap:12px}
  .hero .cta-row .btn{width:100%}
  .hero .stats{gap:10px}
  .hero .stat{padding:10px 14px;flex:1;min-width:80px}
  .faq-q{font-size:15px;padding:15px 18px}
  .chat-panel{right:10px;bottom:80px;height:72vh}
  .fab{right:14px;bottom:14px;width:56px;height:56px}
  .fab-label{display:none}
  footer{font-size:12px}
  /* 移动端减少粒子/光晕开销 */
  body::before{background-size:38px 38px}
}