:root{
  --brand:#e63946;
  --brand-dark:#b02a37;
  --brand-light:#ffe3e5;
  --brand-glow:rgba(230,57,70,.35);
  --accent:#ff7a59;
  --accent-2:#ffb86b;
  --ink:#1d1d1f;
  --ink-soft:#4b4b52;
  --line:#e8e8ec;
  --bg:#ffffff;
  --bg-soft:#f7f7fa;
  --glass:rgba(255,255,255,.62);
  --glass-border:rgba(255,255,255,.55);
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 6px 24px rgba(0,0,0,.08);
  --shadow-hover:0 16px 40px rgba(230,57,70,.18);
  --grad-banner:linear-gradient(135deg,#fff5f5 0%,#ffe9ea 55%,#fff 100%);
  --grad-brand:linear-gradient(135deg,#e63946 0%,#ff7a59 100%);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.8;
  font-size:16px;
  overflow-x:hidden;
  transition:background .35s var(--ease),color .35s var(--ease);
}

a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease)}
a:hover{text-decoration:underline}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

img,svg{max-width:100%;display:block}

::selection{background:var(--brand);color:#fff}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:10px;top:10px;background:#fff;padding:10px 16px;z-index:999;border-radius:8px;box-shadow:var(--shadow)}

/* ========== Header ========== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--glass);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--line);
  transition:background .35s var(--ease),border-color .35s var(--ease);
}

.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:66px}

.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--ink);letter-spacing:-.3px}
.logo:hover{text-decoration:none;color:var(--brand)}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px var(--brand-glow);
  transition:transform .35s var(--ease);
}
.logo:hover .logo-mark{transform:rotate(-8deg) scale(1.06)}
.logo-mark svg{width:18px;height:18px}

.nav-links{display:flex;gap:22px;list-style:none;flex-wrap:wrap}
.nav-links a{color:var(--ink-soft);font-size:15px;font-weight:500;position:relative;padding-bottom:2px}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;
  background:var(--grad-brand);border-radius:2px;
  transition:width .3s var(--ease);
}
.nav-links a:hover{color:var(--brand);text-decoration:none}
.nav-links a:hover::after{width:100%}

.nav-tools{display:flex;align-items:center;gap:10px}

.search-box{
  display:flex;align-items:center;
  border:1px solid var(--line);border-radius:999px;
  padding:4px 4px 4px 14px;
  background:var(--bg-soft);
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .35s var(--ease);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-glow)}
.search-box input{border:0;background:transparent;outline:none;font-size:14px;width:130px;color:var(--ink)}
.search-box input::placeholder{color:#9a9aa4}
.search-box button{
  border:0;background:var(--grad-brand);color:#fff;
  border-radius:999px;padding:6px 14px;font-size:14px;cursor:pointer;
  transition:transform .2s var(--ease),filter .2s var(--ease);
}
.search-box button:hover{filter:brightness(1.08);transform:translateY(-1px)}
.search-box button:active{transform:scale(.96)}

.icon-btn{
  border:1px solid var(--line);background:#fff;
  border-radius:50%;width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;color:var(--ink);
  transition:transform .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),background .35s var(--ease);
}
.icon-btn:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand)}

.menu-toggle{display:none}

/* ========== Breadcrumb ========== */
.breadcrumb{font-size:13.5px;color:#8a8a94;padding:14px 0}
.breadcrumb ol{list-style:none;display:flex;gap:8px;flex-wrap:wrap}
.breadcrumb li::after{content:"/";margin-left:8px;color:#c4c4cc}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--ink-soft)}
.breadcrumb a:hover{color:var(--brand)}

/* ========== Hero ========== */
.hero{
  position:relative;
  background:var(--grad-banner);
  padding:64px 0 48px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;top:-120px;right:-80px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,89,.28),transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-140px;left:-100px;
  width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(230,57,70,.18),transparent 70%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;position:relative;z-index:1}

.eyebrow{
  display:inline-block;background:var(--brand-light);color:var(--brand-dark);
  font-size:13px;font-weight:700;padding:5px 12px;border-radius:999px;letter-spacing:.5px;
}

.hero h1{font-size:40px;line-height:1.25;margin:16px 0 14px;letter-spacing:-.5px}
.hero h1 em{font-style:normal;color:var(--brand);background:linear-gradient(120deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p.lead{font-size:17px;color:var(--ink-soft);max-width:560px}

.hero-cta{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 22px var(--brand-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px var(--brand-glow);text-decoration:none;color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow)}

.hero-stats{display:flex;gap:28px;margin-top:30px;flex-wrap:wrap}
.stat b{font-size:26px;color:var(--brand);display:block;line-height:1.2;font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:var(--ink-soft)}

/* ========== Carousel ========== */
.carousel{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--glass-border);
}
.carousel-track{display:flex;transition:transform .5s var(--ease)}
.slide{min-width:100%;padding:28px}
.slide-tag{font-size:12px;font-weight:700;color:var(--brand);letter-spacing:1px;margin-bottom:6px;display:block}
.slide h3{font-size:19px;margin-bottom:8px;line-height:1.4}
.slide p{font-size:14px;color:var(--ink-soft)}
.carousel-dots{display:flex;gap:8px;justify-content:center;padding:12px 0}
.carousel-dots button{
  width:9px;height:9px;border-radius:50%;border:0;background:#d9d9e0;
  cursor:pointer;padding:0;
  transition:background .3s var(--ease),width .3s var(--ease);
}
.carousel-dots button.active{background:var(--brand);width:24px;border-radius:999px}

/* ========== Sections ========== */
section{padding:56px 0}
section.alt{background:var(--bg-soft)}

.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.3;margin-bottom:12px;letter-spacing:-.3px}
.section-head p{color:var(--ink-soft);font-size:16px}

/* ========== Grid ========== */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* ========== Cards ========== */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease),background .35s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-light)}
.card h3{font-size:18px;margin-bottom:10px;line-height:1.4}
.card p{font-size:14.5px;color:var(--ink-soft)}

.card .icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
  transition:transform .35s var(--ease),background .35s var(--ease);
}
.card:hover .icon{transform:scale(1.08) rotate(-4deg);background:var(--brand-glow)}
.card .icon svg{width:22px;height:22px}

/* ========== Article cards ========== */
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;display:flex;flex-direction:column;height:100%;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease),background .35s var(--ease);
}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-light)}
.article-card .meta{font-size:12.5px;color:#8a8a94;margin-bottom:8px;display:flex;gap:10px;flex-wrap:wrap}
.article-card h3{font-size:17px;margin-bottom:8px;line-height:1.5}
.article-card p{font-size:14px;color:var(--ink-soft);flex:1;margin-bottom:14px}
.article-card .more{font-size:14px;font-weight:700;transition:gap .25s var(--ease)}
.article-card .more:hover{text-decoration:none;letter-spacing:.3px}

/* ========== Ranking ========== */
.ranking{list-style:none;counter-reset:rank}
.ranking li{
  counter-increment:rank;display:flex;gap:16px;align-items:flex-start;
  padding:16px 0;border-bottom:1px dashed var(--line);
  transition:transform .3s var(--ease);
}
.ranking li:hover{transform:translateX(4px)}
.ranking li::before{
  content:counter(rank);font-weight:800;font-size:18px;color:var(--brand);
  min-width:34px;height:34px;border-radius:10px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;
  transition:background .3s var(--ease),color .3s var(--ease);
}
.ranking li:hover::before{background:var(--grad-brand);color:#fff}
.ranking h3{font-size:16px;margin-bottom:4px}
.ranking p{font-size:13.5px;color:var(--ink-soft)}

/* ========== FAQ ========== */
.faq-item{
  border:1px solid var(--line);border-radius:12px;margin-bottom:12px;
  background:#fff;overflow:hidden;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .35s var(--ease);
}
.faq-item:hover{border-color:var(--brand-light);box-shadow:0 4px 16px rgba(230,57,70,.08)}
.faq-item.open{border-color:var(--brand-light)}
.faq-q{
  width:100%;text-align:left;background:none;border:0;padding:18px 20px;
  font-size:16px;font-weight:700;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--ink);
  transition:color .25s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q .plus{color:var(--brand);font-size:20px;transition:transform .35s var(--ease);flex-shrink:0}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s var(--ease),padding .4s var(--ease);padding:0 20px}
.faq-item.open .faq-a{max-height:600px;padding-bottom:18px}
.faq-a p{font-size:14.5px;color:var(--ink-soft)}

/* ========== HowTo ========== */
.howto-steps{list-style:none;counter-reset:step;display:grid;gap:16px}
.howto-steps li{
  counter-increment:step;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:20px 20px 20px 64px;position:relative;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease),background .35s var(--ease);
}
.howto-steps li:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--brand-light)}
.howto-steps li::before{
  content:counter(step);position:absolute;left:18px;top:18px;
  width:32px;height:32px;border-radius:50%;
  background:var(--grad-brand);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:15px;
  box-shadow:0 4px 12px var(--brand-glow);
}
.howto-steps h3{font-size:16px;margin-bottom:6px}
.howto-steps p{font-size:14px;color:var(--ink-soft)}

/* ========== Testimonial ========== */
.testimonial{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease),background .35s var(--ease);
}
.testimonial:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-light)}
.testimonial blockquote{font-size:14.5px;color:var(--ink-soft);margin-bottom:14px;position:relative;padding-left:6px}
.testimonial .who{display:flex;align-items:center;gap:12px}

.avatar{
  width:42px;height:42px;border-radius:50%;
  background:var(--brand-light);display:flex;align-items:center;justify-content:center;
  font-weight:800;color:var(--brand);flex-shrink:0;
  transition:background .3s var(--ease),color .3s var(--ease);
}
.testimonial:hover .avatar{background:var(--grad-brand);color:#fff}
.who b{display:block;font-size:14px}
.who span{font-size:12.5px;color:#8a8a94}

/* ========== Team ========== */
.team-card{text-align:center}
.team-card .avatar{width:64px;height:64px;margin:0 auto 12px;font-size:22px}
.team-card:hover .avatar{background:var(--grad-brand);color:#fff;transform:scale(1.06)}
.team-card .avatar{transition:transform .35s var(--ease),background .35s var(--ease),color .35s var(--ease)}

/* ========== News ========== */
.news-item{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);
  transition:transform .3s var(--ease);
}
.news-item:hover{transform:translateX(4px)}
.news-date{
  min-width:64px;text-align:center;background:var(--brand-light);
  border-radius:10px;padding:8px 4px;color:var(--brand-dark);
  transition:background .3s var(--ease),color .3s var(--ease);
}
.news-item:hover .news-date{background:var(--grad-brand);color:#fff}
.news-date b{display:block;font-size:18px;line-height:1.3}
.news-date span{font-size:12px}
.news-item h3{font-size:16px;margin-bottom:4px}
.news-item p{font-size:13.5px;color:var(--ink-soft)}

/* ========== Contact ========== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.contact-info{list-style:none;display:grid;gap:14px}
.contact-info li{display:flex;gap:12px;font-size:14.5px}
.contact-info .icon{
  min-width:36px;height:36px;border-radius:10px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;
  transition:background .3s var(--ease),transform .3s var(--ease);
}
.contact-info li:hover .icon{background:var(--brand-glow);transform:scale(1.06)}
.contact-info .icon svg{width:18px;height:18px}
.contact-info b{display:block;font-size:14px}
.contact-info span{color:var(--ink-soft);font-size:13.5px}

.map-box{
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:#fff;
  transition:box-shadow .3s var(--ease),background .35s var(--ease);
}
.map-box:hover{box-shadow:var(--shadow)}
.map-box svg{width:100%;height:auto}

/* ========== Footer ========== */
footer{
  background:linear-gradient(180deg,#1a1a1e 0%,#141418 100%);
  color:#c9c9d1;padding:48px 0 24px;font-size:14px;
}
footer a{color:#e6e6ec;transition:color .25s var(--ease)}
footer a:hover{color:var(--accent-2);text-decoration:none}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
footer h3{color:#fff;font-size:15px;margin-bottom:14px}
footer ul{list-style:none;display:grid;gap:9px}
.footer-bottom{
  border-top:1px solid #2c2c33;padding-top:20px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9a9aa4;
}

/* ========== Back Top ========== */
.back-top{
  position:fixed;right:22px;bottom:22px;
  width:46px;height:46px;border-radius:50%;
  background:var(--grad-brand);color:#fff;border:0;cursor:pointer;
  display:none;align-items:center;justify-content:center;
  box-shadow:0 8px 22px var(--brand-glow);z-index:120;
  transition:transform .25s var(--ease),filter .25s var(--ease);
}
.back-top.show{display:flex}
.back-top:hover{transform:translateY(-3px) scale(1.05);filter:brightness(1.08)}

/* ========== Reveal animation ========== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.visible{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ========== Dark mode ========== */
body.dark{
  --ink:#ececf1;
  --ink-soft:#b4b4c0;
  --line:#2c2c33;
  --bg:#141418;
  --bg-soft:#1b1b21;
  --brand-light:#3a1f22;
  --glass:rgba(20,20,24,.72);
  --glass-border:rgba(255,255,255,.08);
  --shadow:0 6px 24px rgba(0,0,0,.5);
  --shadow-hover:0 16px 40px rgba(230,57,70,.28);
  --grad-banner:linear-gradient(135deg,#1e1e25 0%,#2a1a1c 55%,#141418 100%);
}
body.dark .site-header{background:var(--glass)}
body.dark .card,
body.dark .article-card,
body.dark .faq-item,
body.dark .howto-steps li,
body.dark .testimonial,
body.dark .carousel,
body.dark .map-box{background:#1e1e25}
body.dark .search-box{background:#1e1e25}
body.dark .icon-btn{background:#1e1e25;color:#fff}
body.dark .btn-ghost{background:#1e1e25;color:#ececf1}
body.dark .hero{background:var(--grad-banner)}
body.dark .hero::before{background:radial-gradient(circle,rgba(255,122,89,.16),transparent 70%)}
body.dark .hero::after{background:radial-gradient(circle,rgba(230,57,70,.14),transparent 70%)}
body.dark .nav-links.open{background:#1e1e25}
body.dark .news-date{color:var(--brand)}
body.dark .avatar{color:var(--brand)}
body.dark .article-card .meta,
body.dark .breadcrumb,
body.dark .who span{color:#8a8a94}
body.dark .map-box svg rect[fill="#f2f4f8"]{fill:#16161b}
body.dark .map-box svg rect[fill="#e4e9f2"]{fill:#24242c}
body.dark .map-box svg path[stroke="#d6dbe6"]{stroke:#2c2c33}
body.dark .map-box svg text[fill="#1d1d1f"]{fill:#ececf1}
body.dark .map-box svg text[fill="#4b4b52"]{fill:#b4b4c0}

/* ========== Responsive ========== */
@media(max-width:960px){
  .hero-grid,
  .contact-grid,
  .grid-3,
  .grid-4,
  .footer-grid{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .hero{padding:48px 0 36px}
  .hero h1{font-size:30px}
  .hero p.lead{font-size:16px}
  .section-head h2{font-size:24px}
  section{padding:44px 0}

  .nav-links{display:none}
  .menu-toggle{display:flex}
  .nav-links.open{
    display:flex;position:absolute;top:66px;left:0;right:0;
    background:var(--glass);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    flex-direction:column;padding:16px 20px;
    border-bottom:1px solid var(--line);gap:14px;
    box-shadow:var(--shadow);
  }
  .search-box input{width:90px}
  .hero-stats{gap:20px}
  .stat b{font-size:22px}
}

@media(max-width:600px){
  .container{padding:0 16px}
  .hero h1{font-size:26px}
  .hero-cta .btn{width:100%;justify-content:center}
  .search-box{display:none}
  .card,.article-card,.testimonial{padding:20px}
  .slide{padding:22px}
  .back-top{right:16px;bottom:16px;width:42px;height:42px}
  .footer-bottom{flex-direction:column;gap:8px}
}

@media(min-width:961px) and (max-width:1180px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
}