/* Culture Section */
.culture-values{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-bottom:40px}
.culture-card{background:var(--card);border-radius:var(--card-radius);padding:32px 24px;text-align:center;border:1px solid rgba(255,255,255,.06);transition:transform .3s,box-shadow .3s}
.culture-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(0,0,0,.3)}
.culture-icon{width:64px;height:64px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.5rem;color:#fff}
.culture-card h4{font-size:1.15rem;margin-bottom:10px;color:var(--cyan)}
.culture-card p{font-size:.9rem;color:rgba(255,255,255,.7);line-height:1.6}
.culture-philosophy{background:linear-gradient(135deg,rgba(59,130,246,.08),rgba(6,182,212,.08));border-radius:var(--card-radius);padding:32px;border:1px solid rgba(59,130,246,.15)}
.culture-philosophy h3{font-size:1.3rem;margin-bottom:16px;color:var(--cyan);text-align:center}
.culture-philosophy p{font-size:1rem;line-height:1.8;color:rgba(255,255,255,.85);text-align:justify}
.news-img{width:100%;height:200px;object-fit:cover;border-radius:var(--card-radius) var(--card-radius) 0 0}
.case-img{width:100%;height:100%;object-fit:cover;border-radius:inherit}
/* ===== AI Dark Theme - 银华电子 ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#050810;--bg2:#0a0f1a;--bg3:#0d1424;--bg4:#111b2e;
  --card:rgba(12,18,36,.75);--card-b:rgba(30,58,95,.25);
  --blue:#3b82f6;--cyan:#06b6d4;--teal:#14b8a6;--purple:#8b5cf6;
  --pink:#ec4899;--green:#22c55e;--amber:#f59e0b;--red:#ef4444;
  --t1:#e8edf5;--t2:#94a3b8;--t3:#64748b;
  --grad:linear-gradient(135deg,#3b82f6,#06b6d4,#14b8a6);
  --grad2:linear-gradient(135deg,#8b5cf6,#3b82f6,#06b6d4);
  --glow:0 0 20px rgba(59,130,246,.3);--glow2:0 0 40px rgba(59,130,246,.15);
  --radius:16px;--radius-sm:10px;--radius-lg:24px;
  --transition:.35s cubic-bezier(.4,0,.2,1);
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --section-gap:100px;--card-radius:20px;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font);color:var(--t1);background:var(--bg);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
ul{list-style:none}img{max-width:100%;display:block}
.container{max-width:1280px;margin:0 auto;padding:0 32px}
section{padding:var(--section-gap) 0}

/* Section Header */
.section-header{text-align:center;margin-bottom:64px;position:relative}
.section-header .badge{display:inline-flex;align-items:center;gap:8px;padding:8px 22px;background:rgba(59,130,246,.1);color:var(--blue);font-size:.78rem;font-weight:700;border-radius:30px;margin-bottom:18px;letter-spacing:1.5px;text-transform:uppercase;border:1px solid rgba(59,130,246,.15)}
.section-header h2{font-size:2.5rem;color:var(--t1);font-weight:800;letter-spacing:-.5px;line-height:1.3}
.section-header h2 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-header p{color:var(--t3);margin-top:14px;font-size:1.05rem;max-width:560px;margin-left:auto;margin-right:auto;line-height:1.8}

/* Header */
.header{position:fixed;top:0;left:0;width:100%;z-index:1000;transition:all var(--transition);background:rgba(5,8,16,.6);backdrop-filter:blur(12px);border-bottom:1px solid rgba(59,130,246,.05)}
.header.scrolled{background:rgba(5,8,16,.92);backdrop-filter:blur(20px) saturate(180%);box-shadow:0 4px 30px rgba(0,0,0,.3);border-bottom-color:rgba(59,130,246,.1)}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:10px 32px;max-width:1440px;margin:0 auto}
.logo{display:flex;align-items:center;gap:12px}
.logo-img{width:48px;height:48px;border-radius:50%;object-fit:cover;border:2px solid rgba(59,130,246,.3)}
.logo-text{color:#fff;font-size:1rem;font-weight:700;line-height:1.3}
.logo-text small{display:block;font-size:.55rem;font-weight:400;opacity:.5;letter-spacing:1.5px;text-transform:uppercase}

/* Nav */
.nav-links{display:flex;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-item>a{display:flex;align-items:center;gap:5px;color:rgba(255,255,255,.7);padding:10px 14px;border-radius:10px;font-size:.88rem;font-weight:500;transition:all var(--transition);white-space:nowrap}
.nav-item>a:hover,.nav-item>a.active{color:#fff;background:rgba(59,130,246,.1)}
.nav-item>a .arrow{font-size:.55rem;transition:transform var(--transition)}
.nav-item:hover>a .arrow{transform:rotate(180deg)}

/* Dropdown */
.dropdown{position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(10px);min-width:240px;background:rgba(10,15,26,.95);backdrop-filter:blur(20px);border-radius:var(--radius);box-shadow:0 20px 60px rgba(0,0,0,.5);padding:10px;opacity:0;visibility:hidden;transition:all var(--transition);z-index:100;border:1px solid rgba(59,130,246,.1)}
.dropdown::before{content:'';position:absolute;top:-6px;left:50%;transform:translateX(-50%) rotate(45deg);width:12px;height:12px;background:rgba(10,15,26,.95);border-radius:2px;border-left:1px solid rgba(59,130,246,.1);border-top:1px solid rgba(59,130,246,.1)}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.dropdown a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--radius-sm);color:var(--t2);font-size:.88rem;transition:all var(--transition)}
.dropdown a:hover{background:rgba(59,130,246,.1);color:var(--blue)}
.dropdown a .dd-icon{width:32px;height:32px;background:rgba(59,130,246,.1);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:.9rem;flex-shrink:0}
.dropdown a:hover .dd-icon{background:var(--blue);color:#fff}
.dd-qr{display:flex;flex-direction:column;align-items:center;gap:6px;padding:12px 14px 8px;border-top:1px solid rgba(59,130,246,.1);margin-top:4px}
.dd-qr span{font-size:.78rem;color:var(--t3)}
.nav-cta{background:var(--grad)!important;color:#fff!important;padding:10px 22px!important;border-radius:10px!important;font-weight:600!important;box-shadow:var(--glow)}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 24px rgba(59,130,246,.4)}
.mobile-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.mobile-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:var(--transition)}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:linear-gradient(160deg,#050810 0%,#0a1225 30%,#0d1a3a 60%,#0a1628 100%);overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 70% 40%,rgba(59,130,246,.08),transparent),radial-gradient(ellipse 60% 50% at 20% 80%,rgba(139,92,246,.06),transparent)}
.hero-bg-img{position:absolute;inset:0;z-index:0;opacity:.45;background-size:cover;background-position:center;filter:none}
#particles{position:absolute;inset:0;z-index:1}
.hero-grid-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(59,130,246,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(59,130,246,.03) 1px,transparent 1px);background-size:80px 80px;mask-image:radial-gradient(ellipse 70% 60% at 50% 50%,black 20%,transparent 70%)}
.hero-content{position:relative;z-index:2;max-width:1280px;margin:0 auto;padding:140px 32px 100px;text-align:center}
.hero-title{font-size:3.2rem;color:#fff;font-weight:800;line-height:1.25;margin-bottom:24px;letter-spacing:-1px}
.gradient-text{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{color:rgba(255,255,255,.6);font-size:1.15rem;margin-bottom:40px;line-height:1.8}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:800px;margin:0 auto 40px}
.stat-card{background:rgba(255,255,255,.03);border:1px solid rgba(59,130,246,.1);border-radius:var(--radius);padding:22px 18px;backdrop-filter:blur(12px);text-align:center;transition:var(--transition)}
.stat-card:hover{background:rgba(59,130,246,.08);border-color:rgba(59,130,246,.25);box-shadow:var(--glow2)}
.stat-num{font-size:2.2rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:block}
.stat-card span:last-child{display:block;color:var(--t3);font-size:.82rem;margin-top:6px}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 34px;border-radius:12px;font-size:.95rem;font-weight:600;cursor:pointer;border:none;transition:all var(--transition);font-family:var(--font)}
.btn-primary,.btn.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--glow)}
.btn-primary:hover,.btn.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 36px rgba(59,130,246,.45)}
.btn-outline{background:rgba(255,255,255,.04);color:#fff;border:1.5px solid rgba(59,130,246,.2);backdrop-filter:blur(8px)}
.btn-outline:hover{border-color:var(--blue);color:var(--blue);background:rgba(59,130,246,.06)}

/* About */
.about{background:var(--bg2);position:relative}
.about::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.15),transparent)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.about-content h3{font-size:1.8rem;color:var(--t1);margin-bottom:18px;font-weight:700;line-height:1.4}
.about-content p{color:var(--t2);margin-bottom:14px;line-height:2;font-size:.95rem;text-align:justify}
.about-img{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:420px;background:linear-gradient(135deg,var(--bg3),var(--bg4));display:flex;align-items:center;justify-content:center;border:1px solid var(--card-b)}
.about-img img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1}
.about-img::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(59,130,246,.1),transparent);z-index:2}

/* Positioning */
.positioning-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.pos-card{text-align:center;padding:44px 30px;background:var(--card);border-radius:var(--card-radius);border:1px solid var(--card-b);transition:all var(--transition);position:relative;overflow:hidden;backdrop-filter:blur(12px)}
.pos-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--grad);opacity:0;transition:var(--transition)}
.pos-card:hover{border-color:rgba(59,130,246,.3);box-shadow:var(--glow2);transform:translateY(-6px)}
.pos-card:hover::after{opacity:1}
.pos-icon{width:68px;height:68px;background:rgba(59,130,246,.1);border-radius:20px;display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:1.5rem;margin:0 auto 22px;border:1px solid rgba(59,130,246,.15)}
.pos-card h4{font-size:1.08rem;color:var(--t1);font-weight:700;margin-bottom:12px}
.pos-card p{color:var(--t2);font-size:.88rem;line-height:1.8}

/* Business */
.business-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.business-card{background:var(--card);border-radius:var(--card-radius);padding:36px;border:1px solid var(--card-b);transition:all var(--transition);position:relative;backdrop-filter:blur(12px)}
.business-card::before{content:'';position:absolute;top:0;left:0;width:3px;height:100%;background:var(--grad);border-radius:0 4px 4px 0;opacity:0;transition:var(--transition)}
.business-card:hover{border-color:rgba(59,130,246,.25);box-shadow:var(--glow2);transform:translateX(4px)}
.business-card:hover::before{opacity:1}
.biz-header{display:flex;align-items:center;gap:16px;margin-bottom:18px}
.biz-icon{width:54px;height:54px;background:rgba(59,130,246,.1);border-radius:16px;display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:1.3rem;flex-shrink:0;transition:var(--transition);border:1px solid rgba(59,130,246,.1)}
.business-card:hover .biz-icon{background:var(--blue);color:#fff;border-color:var(--blue)}
.biz-header h4{font-size:1.08rem;color:var(--t1);font-weight:700}
.business-card ul{padding-left:0}
.business-card ul li{color:var(--t2);font-size:.88rem;line-height:1.7;padding:6px 0 6px 22px;position:relative}
.business-card ul li::before{content:'';position:absolute;left:0;top:14px;width:8px;height:8px;background:var(--blue);border-radius:50%;box-shadow:0 0 8px rgba(59,130,246,.4)}

/* Team */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.team-card{text-align:center;padding:36px 20px;background:var(--card);border-radius:var(--radius);transition:var(--transition);border:1px solid var(--card-b);backdrop-filter:blur(12px)}
.team-card:hover{border-color:rgba(59,130,246,.3);box-shadow:var(--glow2);transform:translateY(-4px)}
.team-avatar{width:84px;height:84px;border-radius:50%;background:var(--grad2);margin:0 auto 18px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:2rem;box-shadow:var(--glow)}
.team-card h4{font-size:1rem;color:var(--t1);font-weight:700}
.team-card .role{color:var(--blue);font-size:.82rem;font-weight:600;margin-top:4px}
.team-card .desc{color:var(--t3);font-size:.82rem;margin-top:8px}

/* Honors */
.honors-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.honor-card{text-align:center;padding:28px 20px;background:var(--card);border-radius:var(--radius);border:1px solid var(--card-b);transition:var(--transition);backdrop-filter:blur(12px)}
.honor-card:hover{border-color:var(--amber);box-shadow:0 0 20px rgba(245,158,11,.15);transform:translateY(-4px)}
.honor-card .icon{font-size:2rem;color:var(--amber);margin-bottom:10px}
.honor-card h4{font-size:.88rem;color:var(--t1);font-weight:600}
.honor-card .honor-year{display:inline-block;padding:2px 10px;background:rgba(59,130,246,.1);color:var(--blue);border-radius:20px;font-size:.72rem;font-weight:600;margin-top:8px}
.honor-card p{color:var(--t3);font-size:.8rem;margin-top:8px;line-height:1.6}

/* Timeline */
.timeline{max-width:800px;margin:0 auto;position:relative;padding-left:40px}
.timeline::before{content:'';position:absolute;left:15px;top:0;bottom:0;width:2px;background:var(--grad)}
.timeline-item{position:relative;margin-bottom:32px}
.timeline-item::before{content:'';position:absolute;left:-32px;top:8px;width:14px;height:14px;background:var(--blue);border-radius:50%;border:3px solid var(--bg2);box-shadow:0 0 0 3px rgba(59,130,246,.3),var(--glow)}
.tl-year{display:inline-block;padding:3px 14px;background:var(--grad);color:#fff;border-radius:20px;font-size:.82rem;font-weight:700;margin-bottom:8px}
.tl-content{background:var(--card);border-radius:var(--radius);padding:20px 24px;border:1px solid var(--card-b);backdrop-filter:blur(12px)}
.tl-content h4{font-size:1rem;color:var(--t1);font-weight:700;margin-bottom:6px}
.tl-content p{color:var(--t2);font-size:.88rem;line-height:1.7}

/* Values */
.values-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.value-card{text-align:center;padding:36px 24px;background:var(--card);border-radius:var(--radius);border:1px solid var(--card-b);transition:var(--transition);backdrop-filter:blur(12px)}
.value-card:hover{border-color:rgba(59,130,246,.3);box-shadow:var(--glow2);transform:translateY(-4px)}
.val-icon{width:60px;height:60px;background:rgba(59,130,246,.08);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:1.4rem;margin:0 auto 16px;border:1px solid rgba(59,130,246,.1)}
.value-card h4{font-size:1rem;color:var(--t1);font-weight:700;margin-bottom:8px}
.value-card p{color:var(--t2);font-size:.85rem;line-height:1.7}

/* Products */
.products{background:var(--bg);position:relative}
.products::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.15),transparent)}
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.product-card{background:var(--card);border-radius:var(--card-radius);padding:0;border:1px solid var(--card-b);transition:all var(--transition);position:relative;overflow:hidden;backdrop-filter:blur(12px)}
.product-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);opacity:0;transition:var(--transition)}
.product-card:hover{transform:translateY(-8px);box-shadow:var(--glow2);border-color:rgba(59,130,246,.25)}
.product-card:hover::before{opacity:1}
.product-img{width:100%;height:200px;object-fit:cover;border-bottom:1px solid var(--card-b)}
.product-body{padding:28px 28px 32px}
.product-icon{width:64px;height:64px;background:rgba(59,130,246,.08);border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:22px;transition:var(--transition);border:1px solid rgba(59,130,246,.1)}
.product-icon i{color:var(--blue);transition:var(--transition)}
.product-card:hover .product-icon{background:var(--grad);box-shadow:var(--glow);border-color:transparent}
.product-card:hover .product-icon i{color:#fff}
.product-card h3{font-size:1.1rem;color:var(--t1);margin-bottom:12px;font-weight:700;line-height:1.4}
.product-card p{color:var(--t2);font-size:.88rem;line-height:1.85}
.product-card .learn-more{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-size:.88rem;font-weight:600;margin-top:18px;transition:var(--transition);padding:6px 0}
.product-card .learn-more:hover{gap:12px;color:var(--cyan)}

/* Solutions */
.solutions{background:var(--bg2);position:relative}
.solutions::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.15),transparent)}
.solutions-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.sol-img{width:100%;height:180px;object-fit:cover;border-radius:var(--card-radius) var(--card-radius) 0 0;margin:-40px -36px 20px -36px;width:calc(100% + 72px)}
.solution-card{background:var(--card);border:1px solid var(--card-b);border-radius:var(--card-radius);padding:40px 36px;transition:all var(--transition);display:flex;gap:24px;align-items:flex-start;position:relative;overflow:hidden;backdrop-filter:blur(12px)}
.solution-card::after{content:'';position:absolute;top:0;left:0;bottom:0;width:3px;background:var(--grad);opacity:0;transition:var(--transition)}
.solution-card:hover{box-shadow:var(--glow2);transform:translateY(-4px);border-color:rgba(59,130,246,.25)}
.solution-card:hover::after{opacity:1}
.solution-num{font-size:3rem;font-weight:900;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;flex-shrink:0;opacity:.7}
.solution-card h3{font-size:1.12rem;color:var(--t1);margin-bottom:10px;font-weight:700}
.solution-card p{color:var(--t2);font-size:.9rem;line-height:1.85}

/* News */
.news{background:var(--bg);position:relative}
.news::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.15),transparent)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--card);border-radius:var(--radius);overflow:hidden;border:1px solid var(--card-b);transition:all var(--transition);backdrop-filter:blur(12px)}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--glow2);border-color:rgba(59,130,246,.2)}
.news-thumb{height:200px;background:linear-gradient(135deg,var(--bg3),var(--bg4));display:flex;align-items:center;justify-content:center;color:rgba(59,130,246,.15);font-size:3rem;position:relative;overflow:hidden}
.news-thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(59,130,246,.15),transparent)}
.news-body{padding:26px}
.news-body .date{color:var(--blue);font-size:.8rem;font-weight:600;margin-bottom:10px}
.news-body h3{font-size:1.05rem;color:var(--t1);margin-bottom:10px;line-height:1.5;font-weight:700}
.news-body p{color:var(--t2);font-size:.86rem;line-height:1.7}

/* Cases */
.cases{background:var(--bg2);position:relative}
.cases::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.15),transparent)}
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{border-radius:var(--radius);overflow:hidden;position:relative;height:300px;cursor:pointer;border:1px solid var(--card-b)}
.case-card .case-bg{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .6s ease}
.case-card:hover .case-bg{transform:scale(1.08)}
.case-card .case-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(5,8,16,.95) 0%,transparent 60%);display:flex;flex-direction:column;justify-content:flex-end;padding:32px;transition:var(--transition);z-index:1}
.case-card:hover .case-overlay{background:linear-gradient(to top,rgba(5,8,16,.98) 0%,rgba(59,130,246,.1) 100%)}
.case-card:hover{border-color:rgba(59,130,246,.3);box-shadow:var(--glow2);transform:translateY(-4px)}
.case-card .case-tag{display:inline-block;padding:4px 12px;background:rgba(59,130,246,.2);border-radius:20px;color:var(--blue);font-size:.75rem;font-weight:600;margin-bottom:12px;width:fit-content}
.case-card h3{color:#fff;font-size:1.15rem;margin-bottom:8px;font-weight:700}
.case-card p{color:rgba(255,255,255,.6);font-size:.85rem}

/* Standards */
.standards{background:var(--bg);position:relative}
.standards::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.15),transparent)}
.standards-list{display:grid;gap:16px;max-width:900px;margin:0 auto}
.standard-item{background:var(--card);border:1px solid var(--card-b);border-radius:var(--radius);padding:26px 32px;display:flex;align-items:center;gap:22px;transition:var(--transition);backdrop-filter:blur(12px)}
.standard-item:hover{border-color:rgba(59,130,246,.25);box-shadow:var(--glow2);transform:translateX(6px)}
.standard-item .icon{width:52px;height:52px;background:rgba(59,130,246,.1);border-radius:14px;display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:1.3rem;flex-shrink:0;border:1px solid rgba(59,130,246,.1)}
.standard-item h4{font-size:1rem;color:var(--t1);margin-bottom:4px;font-weight:600}
.standard-item p{color:var(--t3);font-size:.85rem}

/* Advantages */
.advantages{background:var(--bg2);position:relative}
.advantages::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.15),transparent)}
.advantages-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.adv-card{background:var(--card);border-radius:var(--radius-lg);padding:40px 34px;border:1px solid var(--card-b);transition:all var(--transition);position:relative;overflow:hidden;backdrop-filter:blur(12px)}
.adv-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);opacity:0;transition:var(--transition)}
.adv-card:hover{transform:translateY(-6px);box-shadow:var(--glow2);border-color:rgba(59,130,246,.2)}
.adv-card:hover::before{opacity:1}
.adv-icon{width:68px;height:68px;background:var(--grad);border-radius:20px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.6rem;margin-bottom:22px;box-shadow:var(--glow)}
.adv-card h4{font-size:1.15rem;color:var(--t1);font-weight:700;margin-bottom:12px}
.adv-card p{color:var(--t2);font-size:.9rem;line-height:1.85}

/* ===== AI Podcast Section ===== */
.ai-podcast{background:var(--bg);position:relative;overflow:hidden}
.ai-podcast::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(139,92,246,.2),transparent)}
.ai-podcast::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 50% at 50% 30%,rgba(139,92,246,.06),transparent),radial-gradient(ellipse 40% 40% at 80% 70%,rgba(59,130,246,.04),transparent);pointer-events:none}
.podcast-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;align-items:center;position:relative;z-index:1}
.podcast-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:1/1;max-height:520px}
.podcast-visual img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-lg)}
.podcast-visual::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(139,92,246,.15),rgba(59,130,246,.1));border-radius:var(--radius-lg)}
.podcast-play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:3;width:80px;height:80px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;cursor:pointer;border:none;color:#fff;font-size:2rem;box-shadow:0 0 40px rgba(139,92,246,.4);transition:all var(--transition)}
.podcast-play-btn:hover{transform:translate(-50%,-50%) scale(1.1);box-shadow:0 0 60px rgba(139,92,246,.6)}
.podcast-wave{position:absolute;bottom:20px;left:0;right:0;height:60px;z-index:2;display:flex;align-items:flex-end;justify-content:center;gap:3px;padding:0 30px}
.podcast-wave span{display:block;width:3px;background:var(--grad);border-radius:2px;animation:podcastWave 1.2s ease-in-out infinite;opacity:.6}
.podcast-wave span:nth-child(1){height:20%;animation-delay:0s}
.podcast-wave span:nth-child(2){height:45%;animation-delay:.1s}
.podcast-wave span:nth-child(3){height:70%;animation-delay:.2s}
.podcast-wave span:nth-child(4){height:35%;animation-delay:.3s}
.podcast-wave span:nth-child(5){height:80%;animation-delay:.4s}
.podcast-wave span:nth-child(6){height:50%;animation-delay:.5s}
.podcast-wave span:nth-child(7){height:90%;animation-delay:.6s}
.podcast-wave span:nth-child(8){height:40%;animation-delay:.7s}
.podcast-wave span:nth-child(9){height:65%;animation-delay:.8s}
.podcast-wave span:nth-child(10){height:30%;animation-delay:.9s}
.podcast-wave span:nth-child(11){height:75%;animation-delay:1s}
.podcast-wave span:nth-child(12){height:55%;animation-delay:1.1s}
@keyframes podcastWave{0%,100%{transform:scaleY(1)}50%{transform:scaleY(.3)}}
.podcast-info h3{font-size:1.6rem;color:var(--t1);font-weight:700;margin-bottom:16px;line-height:1.4}
.podcast-info h3 em{font-style:normal;background:linear-gradient(135deg,#8b5cf6,#3b82f6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.podcast-info>p{color:var(--t2);font-size:.95rem;line-height:1.9;margin-bottom:24px}
.podcast-episodes{display:flex;flex-direction:column;gap:14px}
.podcast-ep{background:var(--card);border:1px solid var(--card-b);border-radius:var(--radius);padding:18px 22px;display:flex;align-items:center;gap:16px;transition:all var(--transition);backdrop-filter:blur(12px);cursor:pointer}
.podcast-ep:hover{border-color:rgba(139,92,246,.3);box-shadow:0 0 20px rgba(139,92,246,.15);transform:translateX(6px)}
.podcast-ep-num{width:36px;height:36px;border-radius:50%;background:rgba(139,92,246,.15);display:flex;align-items:center;justify-content:center;color:var(--purple);font-size:.82rem;font-weight:700;flex-shrink:0;border:1px solid rgba(139,92,246,.2)}
.podcast-ep-info{flex:1}
.podcast-ep-info h4{font-size:.92rem;color:var(--t1);font-weight:600;margin-bottom:2px}
.podcast-ep-info span{font-size:.78rem;color:var(--t3)}
.podcast-ep-play{width:32px;height:32px;border-radius:50%;background:rgba(139,92,246,.1);border:1px solid rgba(139,92,246,.2);display:flex;align-items:center;justify-content:center;color:var(--purple);font-size:.7rem;transition:var(--transition);flex-shrink:0}
.podcast-ep:hover .podcast-ep-play{background:var(--purple);color:#fff;border-color:var(--purple)}
.podcast-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;background:rgba(139,92,246,.1);border:1px solid rgba(139,92,246,.2);border-radius:20px;color:var(--purple);font-size:.78rem;font-weight:600;margin-bottom:18px}
.podcast-badge i{font-size:.7rem}

/* AI Knowledge / FAQ */
.ai-knowledge{padding:80px 0;background:var(--bg2);position:relative}
.ai-knowledge::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(59,130,246,.15),transparent)}
.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:24px;margin-top:40px}
.faq-item{background:var(--card);border-radius:var(--radius);padding:28px;transition:all .3s ease;border:1px solid var(--card-b);backdrop-filter:blur(12px)}
.faq-item:hover{transform:translateY(-4px);box-shadow:var(--glow2);border-color:rgba(59,130,246,.2)}
.faq-item h3{font-size:1.05rem;color:var(--t1);margin-bottom:12px;display:flex;align-items:center;gap:10px}
.faq-item h3 i{color:var(--blue);font-size:1.1rem}
.faq-item p{color:var(--t2);font-size:.92rem;line-height:1.7}

/* Footer */
.footer{background:linear-gradient(180deg,var(--bg2),#030508);color:var(--t3);padding:70px 0 0;border-top:1px solid rgba(59,130,246,.08)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:50px;padding-bottom:50px;border-bottom:1px solid rgba(59,130,246,.06)}
.footer-brand .logo-text{font-size:1.15rem;margin-bottom:14px;color:#fff}
.footer-brand p{font-size:.88rem;line-height:1.8;margin-top:14px;max-width:320px}
.footer h4{color:var(--t1);font-size:1rem;margin-bottom:22px;font-weight:700}
.footer ul li{margin-bottom:12px}
.footer ul li a{color:var(--t3);font-size:.88rem;transition:var(--transition)}
.footer ul li a:hover{color:var(--blue);padding-left:4px}
.footer-qr{display:flex;gap:20px}
.qr-item{text-align:center}
.qr-item img{width:110px;height:110px;border-radius:12px;margin-bottom:10px;border:3px solid rgba(59,130,246,.1);background:#fff;padding:4px}
.qr-item span{font-size:.82rem;color:var(--t3)}
.footer-bottom{padding:24px 0;text-align:center;font-size:.82rem;color:rgba(255,255,255,.25)}

/* Float */
.float-consult{position:fixed;right:24px;bottom:24px;z-index:999;display:flex;flex-direction:column;gap:12px}
.float-btn{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.3rem;cursor:pointer;box-shadow:0 4px 20px rgba(0,0,0,.3);transition:var(--transition);border:none}
.float-btn:hover{transform:scale(1.12)}
.float-btn.top{background:var(--grad);box-shadow:var(--glow)}

/* QR Modal */
.qr-modal{position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.7);backdrop-filter:blur(8px);align-items:center;justify-content:center}

/* Animations */
.fade-up{opacity:0;transform:translateY(30px);transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1)}
.fade-up.visible{opacity:1;transform:translateY(0)}
.positioning-grid.fade-up>*,.products-grid.fade-up>*,.business-grid.fade-up>*,.values-grid.fade-up>*,.honors-grid.fade-up>*,.team-grid.fade-up>*,.cases-grid.fade-up>*{opacity:0;transform:translateY(20px);transition:opacity .5s ease,transform .5s ease}
.positioning-grid.visible>*,.products-grid.visible>*,.business-grid.visible>*,.values-grid.visible>*,.honors-grid.visible>*,.team-grid.visible>*,.cases-grid.visible>*{opacity:1;transform:translateY(0)}
.positioning-grid.visible>*:nth-child(1){transition-delay:.1s}
.positioning-grid.visible>*:nth-child(2){transition-delay:.2s}
.positioning-grid.visible>*:nth-child(3){transition-delay:.3s}
.products-grid.visible>*:nth-child(1){transition-delay:.05s}
.products-grid.visible>*:nth-child(2){transition-delay:.1s}
.products-grid.visible>*:nth-child(3){transition-delay:.15s}
.products-grid.visible>*:nth-child(4){transition-delay:.2s}
.products-grid.visible>*:nth-child(5){transition-delay:.25s}
.products-grid.visible>*:nth-child(6){transition-delay:.3s}
.products-grid.visible>*:nth-child(7){transition-delay:.35s}
.products-grid.visible>*:nth-child(8){transition-delay:.4s}
.products-grid.visible>*:nth-child(9){transition-delay:.45s}
.products-grid.visible>*:nth-child(10){transition-delay:.5s}

/* Scrollbar */
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--grad);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--blue)}
::selection{background:var(--blue);color:#fff}
::moz-selection{background:var(--blue);color:#fff}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

/* Responsive */
@media(max-width:1024px){
  .hero-content{padding:120px 32px 80px}
  .hero-stats{grid-template-columns:repeat(2,1fr);max-width:400px}
  .about-grid{grid-template-columns:1fr}
  .products-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .honors-grid{grid-template-columns:repeat(2,1fr)}
  .positioning-grid{grid-template-columns:1fr}
  .business-grid{grid-template-columns:1fr}
  .values-grid{grid-template-columns:repeat(2,1fr)}
  .cases-grid{grid-template-columns:repeat(2,1fr)}
  .advantages-grid{grid-template-columns:1fr}
  .podcast-grid{grid-template-columns:1fr;gap:40px}
  .podcast-visual{max-height:400px}
}
@media(max-width:768px){
  .nav-links{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(5,8,16,.98);flex-direction:column;align-items:center;justify-content:center;gap:8px}
  .nav-links.open{display:flex}
  .nav-links a{font-size:1.1rem;padding:12px 24px}
  .dropdown{position:static;transform:none;box-shadow:none;background:rgba(59,130,246,.05);border:none;min-width:auto}
  .dropdown::before{display:none}
  .dropdown a{color:rgba(255,255,255,.7)}
  .dropdown a:hover{background:rgba(59,130,246,.08);color:#fff}
  .dropdown a .dd-icon{background:rgba(59,130,246,.15)}
  .mobile-toggle{display:flex}
  .hero-title{font-size:2rem}
  .products-grid,.solutions-grid,.news-grid,.cases-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  section{padding:70px 0}
  .section-header h2{font-size:1.7rem}
  .container{padding:0 20px}
  .team-grid{grid-template-columns:1fr 1fr}
  .honors-grid{grid-template-columns:1fr}
  .values-grid{grid-template-columns:1fr 1fr}
  .podcast-visual{max-height:320px}
  .podcast-play-btn{width:60px;height:60px;font-size:1.5rem}
}
@media(max-width:480px){
  html{font-size:14px}
  .container{padding:0 16px}
  section{padding:50px 0}
  .section-header{margin-bottom:40px}
  .section-header h2{font-size:1.5rem}
  .hero{min-height:100vh;padding:100px 0 60px}
  .hero-title{font-size:1.75rem}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px}
  .hero-btns{flex-direction:column;gap:12px}
  .hero-btns .btn{width:100%;justify-content:center}
  .products-grid,.solutions-grid,.news-grid,.cases-grid,.team-grid,.honors-grid,.values-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .contact-grid{gap:30px}
  .float-consult{right:16px;bottom:16px}
  .float-btn{width:48px;height:48px}
}
@media(hover:none)and(pointer:coarse){
  .btn{min-height:44px}
  .nav-links a{min-height:44px}
  .product-card:hover,.solution-card:hover,.news-card:hover,.case-card:hover{transform:none}
  html{-webkit-overflow-scrolling:touch}
}

/* ===== 新增section响应式样式 ===== */
#about-company img,
#cases-showcase img,
#news-center img {
  width: 100%;
  height: auto;
}

#about-company > .container > div:last-child {
  gap: 24px;
}

@media(max-width: 768px) {
  #about-company > .container > div:last-child {
    gap: 16px;
  }
  
  #cases-showcase [style*="grid-template-columns"],
  #news-center [style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
  
  #cases-showcase img,
  #news-center img {
    height: 180px !important;
  }
}

@media(max-width: 480px) {
  #about-company h2,
  #cases-showcase h2,
  #news-center h2 {
    font-size: 1.5rem !important;
  }
  
  #cases-showcase img,
  #news-center img {
    height: 160px !important;
  }
  
  #about-company > .container > div:last-child > div {
    min-width: 40%;
  }
}

@media print{
  .header,.float-consult,.cta-section,.qr-modal{display:none!important}
  section{padding:30px 0}
  body{background:#fff}
}