*{margin:0;padding:0;box-sizing:border-box}
:root{--brand:#0f172a;--accent:#e11d48;--accent2:#f59e0b;--bg:#f8fafc;--card:#ffffff;--text:#1e293b;--muted:#64748b;--line:#e2e8f0;--radius:14px;--shadow:0 8px 30px rgba(15,23,42,.08);--glass:rgba(255,255,255,.72);--glass-line:rgba(255,255,255,.35);--glass-blur:blur(18px) saturate(160%)}
[data-theme="dark"]{--bg:#0b1220;--card:#111a2e;--text:#e2e8f0;--muted:#94a3b8;--line:#1e293b;--shadow:0 8px 30px rgba(0,0,0,.4);--glass:rgba(17,26,46,.68);--glass-line:rgba(148,163,184,.18)}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
::selection{background:rgba(225,29,72,.25)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--accent),var(--accent2));border-radius:10px;border:2px solid var(--bg)}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}

/* ============ 顶栏 ============ */
.topbar{background:var(--brand);color:#cbd5e1;font-size:13px;padding:8px 0;position:relative;z-index:1001}
.topbar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.topbar a{transition:color .25s}
.topbar a:hover{color:#fff}

/* ============ 头部/导航 ============ */
header.site-header{position:sticky;top:0;z-index:1000;background:var(--glass);border-bottom:1px solid var(--glass-line);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);transition:box-shadow .35s ease,background .35s ease}
header.site-header.scrolled{box-shadow:var(--shadow)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--brand);transition:transform .3s}
.logo:hover{transform:translateY(-1px)}
[data-theme="dark"] .logo{color:#fff}
.logo .mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;box-shadow:0 6px 18px rgba(225,29,72,.35);transition:transform .4s cubic-bezier(.34,1.56,.64,1)}
.logo:hover .mark{transform:rotate(-8deg) scale(1.06)}
nav.main-nav ul{display:flex;gap:22px;list-style:none;font-size:15px;font-weight:500}
nav.main-nav a{color:var(--text);padding:6px 0;border-bottom:2px solid transparent;transition:color .25s,border-color .25s;position:relative}
nav.main-nav a:hover{color:var(--accent);border-color:var(--accent)}
.nav-tools{display:flex;align-items:center;gap:10px}
.search-box{display:flex;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:6px 12px;transition:border-color .25s,box-shadow .25s}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(225,29,72,.12)}
.search-box input{border:none;background:transparent;outline:none;color:var(--text);width:130px;font-size:14px}
.search-box input::placeholder{color:var(--muted)}
.search-box button{border:none;background:transparent;cursor:pointer;color:var(--muted);font-size:14px;transition:transform .25s,color .25s}
.search-box button:hover{color:var(--accent);transform:scale(1.15)}
.icon-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:border-color .25s,color .25s,transform .25s,background .25s}
.icon-btn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.icon-btn:active{transform:translateY(0) scale(.95)}
.menu-toggle{display:none}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#0f172a,#1e293b 60%,#3b0764);color:#fff;padding:70px 0 60px}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(225,29,72,.18),transparent 40%,rgba(245,158,11,.14));animation:heroShift 12s ease-in-out infinite alternate}
@keyframes heroShift{0%{opacity:.6;transform:translateX(-3%)}100%{opacity:1;transform:translateX(3%)}}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(225,29,72,.35),transparent 55%),radial-gradient(circle at 10% 90%,rgba(245,158,11,.25),transparent 50%)}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(26px,4vw,44px);line-height:1.25;font-weight:800;margin-bottom:18px;letter-spacing:-.5px}
.hero h1 span{background:linear-gradient(90deg,#f59e0b,#e11d48);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:16px;color:#cbd5e1;max-width:640px;margin-bottom:26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;border:none;transition:transform .25s,box-shadow .25s,background .25s,color .25s;position:relative;overflow:hidden}
.btn-primary{background:linear-gradient(90deg,var(--accent),#be123c);color:#fff;box-shadow:0 6px 18px rgba(225,29,72,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(225,29,72,.45)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.3);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
.stat{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:16px;text-align:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:transform .3s,background .3s}
.stat:hover{transform:translateY(-4px);background:rgba(255,255,255,.12)}
.stat b{display:block;font-size:26px;color:#f59e0b;font-weight:800}
.stat small{color:#cbd5e1;font-size:12px}

/* ============ 轮播 ============ */
.banner-carousel{position:relative;border-radius:18px;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.35);background:#0b1220;border:1px solid rgba(255,255,255,.12)}
.slides{position:relative;height:340px}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease,transform .8s ease;display:flex;flex-direction:column;justify-content:flex-end;padding:26px;color:#fff;transform:scale(1.04)}
.slide.active{opacity:1;transform:scale(1)}
.slide h3{font-size:20px;margin-bottom:6px}
.slide p{font-size:13px;color:#e2e8f0}
.dots{position:absolute;bottom:14px;right:18px;display:flex;gap:8px;z-index:5}
.dots span{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:background .3s,width .3s}
.dots span.active{background:#f59e0b;width:22px;border-radius:6px}
.dots span:hover{background:rgba(255,255,255,.8)}

/* ============ 通用 Section ============ */
section{padding:64px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 44px}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:800;margin-bottom:12px;letter-spacing:-.3px}
.section-head h2::after{content:"";display:block;width:56px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--accent2));margin:14px auto 0}
.section-head p{color:var(--muted);font-size:15px}

/* ============ 网格 ============ */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

/* ============ 卡片 ============ */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .35s cubic-bezier(.22,1,.36,1),border-color .35s,box-shadow .35s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(225,29,72,.06),rgba(245,158,11,.06));opacity:0;transition:opacity .35s;pointer-events:none}
.card:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:0 18px 44px rgba(15,23,42,.14)}
.card:hover::before{opacity:1}
.card>*{position:relative;z-index:1}
.card .ico{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;background:linear-gradient(135deg,rgba(225,29,72,.12),rgba(245,158,11,.12));color:var(--accent);font-size:22px;transition:transform .4s cubic-bezier(.34,1.56,.64,1)}
.card:hover .ico{transform:scale(1.08) rotate(-4deg)}
.card h3{font-size:18px;margin-bottom:10px}
.card p{font-size:14px;color:var(--muted)}
.card ul a{transition:color .25s,padding-left .25s;display:inline-block}
.card ul a:hover{color:var(--accent);padding-left:4px}

/* ============ 滚动动画 ============ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,1,.36,1)}
.reveal.show{opacity:1;transform:none}

/* ============ 文章列表 ============ */
.article-list{display:grid;gap:20px}
.article-item{display:grid;grid-template-columns:200px 1fr;gap:22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .35s cubic-bezier(.22,1,.36,1),border-color .35s,box-shadow .35s}
.article-item:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 18px 44px rgba(15,23,42,.14)}
.article-item .thumb{background:linear-gradient(135deg,#1e293b,#3b0764);min-height:150px;display:flex;align-items:center;justify-content:center;color:#f59e0b;font-weight:700;font-size:14px;text-align:center;padding:16px;position:relative;overflow:hidden}
.article-item .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(225,29,72,.25),transparent 60%);opacity:0;transition:opacity .35s}
.article-item:hover .thumb::after{opacity:1}
.article-item .body{padding:20px 22px 20px 0}
.article-item h3{font-size:17px;margin-bottom:8px;transition:color .25s}
.article-item:hover h3{color:var(--accent)}
.article-item .meta{font-size:12px;color:var(--muted);margin-bottom:10px;display:flex;gap:14px;flex-wrap:wrap}
.article-item p{font-size:14px;color:var(--muted);margin-bottom:12px}
.read-more{color:var(--accent);font-weight:600;font-size:14px;display:inline-block;transition:transform .25s}
.read-more:hover{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:var(--card);overflow:hidden;transition:border-color .3s,box-shadow .3s}
.faq-item:hover{border-color:var(--accent)}
.faq-item.open{box-shadow:var(--shadow)}
.faq-q{width:100%;text-align:left;padding:18px 22px;font-size:15px;font-weight:600;background:none;border:none;cursor:pointer;display:flex;justify-content:space-between;gap:14px;color:var(--text);transition:color .25s}
.faq-q:hover{color:var(--accent)}
.faq-q .arrow{transition:transform .35s cubic-bezier(.34,1.56,.64,1),color .25s;color:var(--accent);flex-shrink:0}
.faq-item.open .faq-q .arrow{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;padding:0 22px;color:var(--muted);font-size:14px}
.faq-item.open .faq-a{max-height:500px;padding-bottom:18px}

/* ============ 步骤 ============ */
.steps{counter-reset:step;display:grid;gap:18px}
.step{position:relative;padding:22px 22px 22px 74px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);transition:transform .3s,border-color .3s,box-shadow .3s}
.step:hover{transform:translateX(6px);border-color:var(--accent);box-shadow:var(--shadow)}
.step::before{counter-increment:step;content:counter(step);position:absolute;left:22px;top:22px;width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;box-shadow:0 6px 16px rgba(225,29,72,.3)}
.step h4{font-size:16px;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}

/* ============ 评价 ============ */
.testimonial{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .35s cubic-bezier(.22,1,.36,1),border-color .35s;position:relative}
.testimonial::before{content:"“";position:absolute;top:6px;right:20px;font-size:56px;line-height:1;color:rgba(225,29,72,.12);font-family:Georgia,serif}
.testimonial:hover{transform:translateY(-5px);border-color:var(--accent)}
.testimonial p{font-size:14px;color:var(--muted);font-style:italic;margin-bottom:16px}
.testimonial .who{display:flex;align-items:center;gap:12px}
.testimonial .avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.testimonial .who b{font-size:14px;display:block}
.testimonial .who small{color:var(--muted);font-size:12px}

/* ============ 联系 ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.contact-info li{list-style:none;display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px;transition:padding-left .25s}
.contact-info li:hover{padding-left:6px}
.contact-info li b{min-width:80px;color:var(--text);flex-shrink:0}
.contact-info li span{color:var(--muted);word-break:break-all}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13px;margin-bottom:6px;color:var(--muted)}
.form-row input,.form-row textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text);font-size:14px;outline:none;font-family:inherit;transition:border-color .25s,box-shadow .25s}
.form-row input:focus,.form-row textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(225,29,72,.12)}
.form-row textarea{resize:vertical;min-height:110px}

/* ============ 页脚 ============ */
footer.site-footer{background:var(--brand);color:#94a3b8;padding:56px 0 24px;font-size:14px;position:relative;overflow:hidden}
footer.site-footer::before{content:"";position:absolute;top:-120px;right:-120px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(225,29,72,.22),transparent 70%);pointer-events:none}
footer.site-footer .container{position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
footer h4{color:#fff;font-size:15px;margin-bottom:16px}
footer ul{list-style:none}
footer li{margin-bottom:9px}
footer a{transition:color .25s,padding-left .25s;display:inline-block}
footer a:hover{color:#f59e0b;padding-left:3px}
.footer-bottom{border-top:1px solid #1e293b;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px}

/* ============ 其它组件 ============ */
.breadcrumb{font-size:13px;color:var(--muted);padding:16px 0}
.breadcrumb a{transition:color .25s}
.breadcrumb a:hover{color:var(--accent)}
.back-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 8px 22px rgba(225,29,72,.4);opacity:0;pointer-events:none;transform:translateY(16px);transition:opacity .35s,transform .35s;z-index:900}
.back-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.back-top:hover{transform:translateY(-4px) scale(1.06)}
.tag{display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;background:rgba(225,29,72,.1);color:var(--accent);margin:0 6px 6px 0;transition:transform .25s,background .25s}
.tag:hover{transform:translateY(-2px);background:rgba(225,29,72,.18)}
.note{background:linear-gradient(135deg,rgba(245,158,11,.1),rgba(225,29,72,.08));border-left:4px solid var(--accent2);padding:16px 20px;border-radius:10px;font-size:14px;color:var(--muted);margin:18px 0}
table{width:100%;border-collapse:collapse;font-size:14px;margin:18px 0;overflow:hidden;border-radius:10px}
th,td{border:1px solid var(--line);padding:11px 14px;text-align:left}
th{background:var(--bg);font-weight:600}
tbody tr{transition:background .25s}
tbody tr:hover{background:rgba(225,29,72,.04)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.prose p{margin-bottom:16px;font-size:15px;color:var(--text)}
.prose h3{margin:26px 0 12px;font-size:19px}
.prose h4{margin:20px 0 10px;font-size:16px}
.prose ul,.prose ol{margin:0 0 16px 22px;font-size:15px;color:var(--muted)}
.prose li{margin-bottom:8px}
.prose a{color:var(--accent);border-bottom:1px solid transparent;transition:border-color .25s}
.prose a:hover{border-color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

/* ============ 响应式 ============ */
@media(max-width:1100px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:960px){
  nav.main-nav{position:fixed;top:0;right:-100%;width:78%;max-width:340px;height:100vh;background:var(--glass);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);padding:80px 26px;transition:right .35s cubic-bezier(.22,1,.36,1);box-shadow:-10px 0 40px rgba(0,0,0,.15);z-index:1100;overflow-y:auto}
  nav.main-nav.open{right:0}
  nav.main-nav ul{flex-direction:column;gap:6px}
  nav.main-nav a{display:block;padding:12px 0;border-bottom:1px solid var(--line)}
  .menu-toggle{display:flex}
  .search-box{display:none}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .hero .container{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:800px){
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:700px){
  .article-item{grid-template-columns:1fr}
  .article-item .body{padding:0 22px 22px}
  .article-item .thumb{min-height:120px}
}
@media(max-width:620px){
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  section{padding:48px 0}
  .hero{padding:52px 0 44px}
  .hero-stats{grid-template-columns:1fr;gap:12px}
  .slides{height:280px}
  .back-top{right:16px;bottom:18px;width:42px;height:42px}
}
@media(max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .topbar .container{justify-content:center;text-align:center}
  .card{padding:20px}
}

/* ============ 动效降级 ============ */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ============ 打印 ============ */
@media print{
  header.site-header,.topbar,.back-top,nav.main-nav,.hero-cta{display:none}
  body{background:#fff;color:#000}
  .card,.article-item,.faq-item{box-shadow:none;border-color:#ccc}
}