:root{
  --brand:#b3244a;
  --brand-dark:#8a1a38;
  --brand-light:#f7e6eb;
  --accent:#e8a33d;
  --text:#1f2328;
  --text-soft:#5a6068;
  --bg:#ffffff;
  --bg-soft:#faf7f8;
  --border:#e8e2e4;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 28px rgba(179,36,74,.10);
  --shadow-hover:0 16px 42px rgba(179,36,74,.18);
  --glass:rgba(255,255,255,.62);
  --glass-border:rgba(255,255,255,.55);
  --glass-blur:blur(16px) saturate(160%);
  --maxw:1160px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
html[data-theme="dark"]{
  --brand:#ff6f92;
  --brand-dark:#ff8faa;
  --brand-light:#2a1a20;
  --accent:#ffc266;
  --text:#e9e6e7;
  --text-soft:#a9a3a5;
  --bg:#141114;
  --bg-soft:#1c171b;
  --border:#2e262b;
  --shadow:0 8px 28px rgba(0,0,0,.5);
  --shadow-hover:0 16px 42px rgba(0,0,0,.62);
  --glass:rgba(28,23,27,.62);
  --glass-border:rgba(255,255,255,.10);
}
*{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","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  color:var(--text);
  background:var(--bg);
  background-image:radial-gradient(circle at 12% 0%,rgba(179,36,74,.06),transparent 42%),radial-gradient(circle at 88% 12%,rgba(232,163,61,.06),transparent 40%);
  background-attachment:fixed;
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  transition:background-color .3s var(--ease),color .3s var(--ease);
  overflow-x:hidden;
}
html[data-theme="dark"] body{background-image:radial-gradient(circle at 12% 0%,rgba(255,111,146,.08),transparent 42%),radial-gradient(circle at 88% 12%,rgba(255,194,102,.06),transparent 40%)}
img,svg{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.4;font-weight:800;letter-spacing:.2px}
p{overflow-wrap:break-word}
::selection{background:var(--brand);color:#fff}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px;width:100%}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;z-index:9999;border-radius:0 0 8px 0}
.skip-link:focus{left:0;outline:2px solid #fff}
.hidden{display:none!important}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

/* ============ 顶部信息条 ============ */
.topbar{
  background:linear-gradient(90deg,var(--brand-dark),var(--brand) 55%,#a51f43);
  color:#fff;font-size:13px;position:relative;overflow:hidden;
}
.topbar::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.14) 50%,transparent 70%);transform:translateX(-100%);animation:topbarShine 7s ease-in-out infinite}
@keyframes topbarShine{0%,60%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;padding-top:6px;padding-bottom:6px;position:relative;z-index:1}
.topbar a{color:#fff}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--glass);
  -webkit-backdrop-filter:var(--glass-blur);
  backdrop-filter:var(--glass-blur);
  border-bottom:1px solid var(--glass-border);
  box-shadow:0 2px 18px rgba(0,0,0,.05);
  transition:background-color .3s var(--ease),box-shadow .3s var(--ease);
}
html[data-theme="dark"] .site-header{box-shadow:0 2px 18px rgba(0,0,0,.4)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--text);transition:transform .25s var(--ease)}
.logo:hover{text-decoration:none;transform:translateY(-1px)}
.logo svg{width:38px;height:38px;flex:none;border-radius:11px;box-shadow:0 4px 14px rgba(179,36,74,.28);transition:transform .4s var(--ease),box-shadow .3s var(--ease)}
.logo:hover svg{transform:rotate(-6deg) scale(1.05);box-shadow:0 6px 20px rgba(179,36,74,.4)}
.logo .logo-sub{display:block;font-size:11px;font-weight:400;color:var(--text-soft);letter-spacing:1px}
.main-nav ul{display:flex;gap:4px;list-style:none;flex-wrap:wrap}
.main-nav a{display:block;padding:8px 12px;border-radius:10px;color:var(--text);font-size:15px;position:relative;transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease)}
.main-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.main-nav a:hover{background:var(--brand-light);color:var(--brand);text-decoration:none;transform:translateY(-1px)}
.main-nav a:hover::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:8px}
.search-box{
  display:flex;align-items:center;border:1px solid var(--border);border-radius:999px;overflow:hidden;
  background:var(--bg-soft);transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(179,36,74,.14);background:var(--bg)}
.search-box input{border:0;background:transparent;padding:8px 14px;font-size:14px;color:var(--text);outline:none;width:150px;transition:width .3s var(--ease)}
.search-box input::placeholder{color:var(--text-soft)}
.search-box input:focus{width:190px}
.search-box button{border:0;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;padding:8px 16px;cursor:pointer;font-size:14px;transition:filter .2s var(--ease),transform .2s var(--ease)}
.search-box button:hover{filter:brightness(1.08)}
.search-box button:active{transform:scale(.96)}
.icon-btn{
  border:1px solid var(--border);background:var(--bg-soft);color:var(--text);border-radius:999px;
  width:40px;height:40px;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;
  transition:background-color .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.icon-btn:hover{background:var(--brand-light);border-color:var(--brand);transform:translateY(-2px);box-shadow:0 6px 16px rgba(179,36,74,.16)}
.icon-btn:active{transform:scale(.94)}
.menu-toggle{display:none}

/* ============ Banner 轮播 ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#c02c55 0%,#b3244a 32%,#8a1a38 66%,#5c0f25 100%);
  isolation:isolate;
}
.hero::before{
  content:"";position:absolute;inset:-40%;z-index:0;
  background:
    radial-gradient(circle at 22% 28%,rgba(255,255,255,.18),transparent 38%),
    radial-gradient(circle at 78% 72%,rgba(232,163,61,.28),transparent 44%),
    radial-gradient(circle at 62% 18%,rgba(255,111,146,.22),transparent 36%);
  animation:heroAurora 16s ease-in-out infinite alternate;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(0,0,0,0) 55%,rgba(0,0,0,.22) 100%);
}
@keyframes heroAurora{
  0%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(3%,-2%,0) scale(1.06)}
  100%{transform:translate3d(-3%,2%,0) scale(1.02)}
}
.hero .container{padding-top:60px;padding-bottom:60px;position:relative;z-index:2}
.hero-slides{position:relative;min-height:300px}
.slide{display:none}
.slide.active{display:block;animation:fade .65s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.hero h1{font-size:clamp(26px,4vw,44px);line-height:1.32;margin-bottom:18px;font-weight:800;letter-spacing:.4px;text-shadow:0 2px 24px rgba(0,0,0,.18)}
.hero h1 .hl{
  color:#ffd9e3;position:relative;display:inline-block;
  background:linear-gradient(90deg,#ffd9e3,#ffc266);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero p.lead{font-size:clamp(15px,1.6vw,18px);max-width:720px;color:#ffe6ed;margin-bottom:24px;text-shadow:0 1px 12px rgba(0,0,0,.12)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.hero-tags span{
  background:rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.32);
  padding:6px 14px;border-radius:999px;font-size:14px;
  transition:transform .25s var(--ease),background-color .25s var(--ease),border-color .25s var(--ease);
}
.hero-tags span:hover{transform:translateY(-3px);background:rgba(255,255,255,.24);border-color:rgba(255,255,255,.6)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.btn{
  display:inline-block;padding:12px 28px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;border:0;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease);
  will-change:transform;
}
.btn-primary{background:#fff;color:var(--brand-dark);box-shadow:0 8px 24px rgba(0,0,0,.18)}
.btn-primary:hover{background:#ffe6ed;text-decoration:none;transform:translateY(-3px);box-shadow:0 14px 32px rgba(0,0,0,.26)}
.btn-primary:active{transform:translateY(-1px) scale(.98)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border:1px solid rgba(255,255,255,.6);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.16);text-decoration:none;transform:translateY(-3px);box-shadow:0 12px 28px rgba(0,0,0,.2)}
.btn-ghost:active{transform:translateY(-1px) scale(.98)}
.hero-visual{
  position:absolute;right:-2%;top:50%;transform:translateY(-50%);width:38%;opacity:.9;pointer-events:none;z-index:1;
  filter:drop-shadow(0 20px 40px rgba(0,0,0,.25));
  animation:floaty 7s ease-in-out infinite;
}
@keyframes floaty{0%,100%{transform:translateY(-50%)}50%{transform:translateY(calc(-50% - 14px))}}
.hero-dots{display:flex;gap:8px;margin-top:32px}
.hero-dots button{
  width:28px;height:6px;border-radius:999px;border:0;background:rgba(255,255,255,.35);cursor:pointer;
  transition:width .35s var(--ease),background-color .35s var(--ease);
}
.hero-dots button:hover{background:rgba(255,255,255,.6)}
.hero-dots button.active{background:#fff;width:44px}

/* ============ 数字统计 ============ */
.stats{background:var(--bg-soft);border-bottom:1px solid var(--border);position:relative}
.stats::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(179,36,74,.04),transparent);pointer-events:none}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:34px 0;position:relative}
.stat{text-align:center;padding:14px 8px;border-radius:var(--radius-sm);transition:transform .3s var(--ease),background-color .3s var(--ease)}
.stat:hover{transform:translateY(-4px);background:var(--glass);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur)}
.stat .num{font-size:clamp(24px,3vw,38px);font-weight:800;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums}
.stat .label{font-size:14px;color:var(--text-soft);margin-top:4px}

/* ============ 通用区块 ============ */
.section{padding:68px 0;position:relative}
.section.alt{background:var(--bg-soft)}
.section.alt::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,rgba(179,36,74,.05),transparent 55%);pointer-events:none}
.section>.container{position:relative}
.section-head{max-width:820px;margin:0 auto 42px;text-align:center}
.section-head h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:14px;line-height:1.38}
.section-head p{color:var(--text-soft);font-size:15px}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:2.4px;color:var(--brand);font-weight:700;margin-bottom:12px;
  text-transform:uppercase;padding:4px 14px;border-radius:999px;background:var(--brand-light);border:1px solid rgba(179,36,74,.16);
}

/* ============ 卡片网格 ============ */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease),background-color .35s var(--ease);
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(135deg,rgba(179,36,74,.5),rgba(232,163,61,.4),transparent 60%);
  -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 .35s var(--ease);pointer-events:none;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent}
.card:hover::before{opacity:1}
.card h3{font-size:18px;margin-bottom:10px;transition:color .25s var(--ease)}
.card:hover h3{color:var(--brand)}
.card p{color:var(--text-soft);font-size:14.5px}
.card .ico{width:52px;height:52px;margin-bottom:16px;border-radius:14px;transition:transform .4s var(--ease)}
.card:hover .ico{transform:translateY(-2px) rotate(-4deg) scale(1.06)}

/* ============ 特性列表 ============ */
.feature-list{list-style:none;display:grid;gap:14px}
.feature-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-soft);transition:transform .25s var(--ease),color .25s var(--ease)}
.feature-list li:hover{transform:translateX(4px);color:var(--text)}
.feature-list li svg{width:22px;height:22px;flex:none;margin-top:3px}
.feature-list li a{font-weight:500}

/* ============ 文章卡片 ============ */
.article-card{
  display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);position:relative;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(179,36,74,.4)}
.article-card .thumb{aspect-ratio:16/9;background:var(--brand-light);overflow:hidden;position:relative}
.article-card .thumb svg{width:100%;height:100%;transition:transform .5s var(--ease)}
.article-card:hover .thumb svg{transform:scale(1.06)}
.article-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(0,0,0,.06));pointer-events:none}
.article-card .body{padding:20px;display:flex;flex-direction:column;flex:1}
.article-card .meta{font-size:12.5px;color:var(--text-soft);margin-bottom:8px;display:flex;gap:10px;flex-wrap:wrap}
.article-card .meta span{padding:2px 10px;border-radius:999px;background:var(--bg-soft);border:1px solid var(--border)}
.article-card h3{font-size:17px;margin-bottom:8px;line-height:1.5;transition:color .25s var(--ease)}
.article-card:hover h3{color:var(--brand)}
.article-card p{font-size:14px;color:var(--text-soft);flex:1;margin-bottom:14px}
.read-more{font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:4px;transition:gap .25s var(--ease),color .25s var(--ease)}
.article-card:hover .read-more{gap:8px}

/* ============ 案例 / 评价 ============ */
.case-card{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);
  position:relative;overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.case-card::after{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--brand),var(--accent));transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(179,36,74,.35)}
.case-card:hover::after{transform:scaleX(1)}
.case-card h3{font-size:17px;margin-bottom:10px}
.case-card p{font-size:14px;color:var(--text-soft)}
.quote{
  background:var(--glass);
  -webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);
  border:1px solid var(--glass-border);border-left:4px solid var(--brand);
  border-radius:0 var(--radius) var(--radius) 0;padding:22px 24px;box-shadow:var(--shadow);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.quote p{font-size:15px;color:var(--text);margin-bottom:12px}
.quote .who{font-size:13.5px;color:var(--text-soft)}
.quote .who strong{color:var(--brand)}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{
  border:1px solid var(--border);border-radius:14px;background:var(--bg);overflow:hidden;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background-color .3s var(--ease);
}
.faq-item:hover{border-color:rgba(179,36,74,.4);box-shadow:0 6px 20px rgba(179,36,74,.08)}
.faq-item.open{border-color:var(--brand);box-shadow:0 10px 28px rgba(179,36,74,.14)}
.faq-item button{
  width:100%;text-align:left;padding:18px 22px;background:transparent;border:0;font-size:16px;font-weight:600;
  color:var(--text);cursor:pointer;display:flex;justify-content:space-between;gap:16px;align-items:center;
  transition:color .25s var(--ease),background-color .25s var(--ease);font-family:inherit;line-height:1.6;
}
.faq-item button:hover{color:var(--brand);background:var(--bg-soft)}
.faq-item.open button{color:var(--brand)}
.faq-item button .arrow{transition:transform .35s var(--ease);flex:none;color:var(--brand)}
.faq-item.open button .arrow{transform:rotate(180deg)}
.faq-item .answer{max-height:0;overflow:hidden;transition:max-height .4s var(--ease);padding:0 22px}
.faq-item .answer p{padding-bottom:18px;color:var(--text-soft);font-size:14.5px}

/* ============ HowTo 步骤 ============ */
.steps{display:grid;gap:18px;counter-reset:step}
.step{
  display:flex;gap:18px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);position:relative;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.step:hover{transform:translateX(6px);box-shadow:var(--shadow-hover);border-color:rgba(179,36,74,.35)}
.step .no{
  flex:none;width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;
  box-shadow:0 6px 18px rgba(179,36,74,.3);transition:transform .35s var(--ease);
}
.step:hover .no{transform:scale(1.08) rotate(-6deg)}
.step h4{font-size:16.5px;margin-bottom:6px}
.step p{font-size:14.5px;color:var(--text-soft)}

/* ============ 表格 ============ */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:14.5px;background:var(--bg)}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--border)}
th{background:var(--brand-light);color:var(--brand-dark);font-weight:700;white-space:nowrap}
tbody tr{transition:background-color .22s var(--ease)}
tbody tr:hover{background:var(--bg-soft)}
tr:last-child td{border-bottom:0}

/* ============ 联系 ============ */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:start}
.contact-card{
  background:var(--glass);
  -webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);
  border:1px solid var(--glass-border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.contact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.contact-card h3{font-size:18px;margin-bottom:16px}
.contact-list{list-style:none;display:grid;gap:14px}
.contact-list li{display:flex;gap:12px;font-size:15px;color:var(--text-soft);padding-bottom:12px;border-bottom:1px dashed var(--border);transition:color .22s var(--ease)}
.contact-list li:last-child{border-bottom:0;padding-bottom:0}
.contact-list li:hover{color:var(--text)}
.contact-list li strong{color:var(--text);min-width:76px;display:inline-block;flex:none}

/* ============ 作者 ============ */
.author-box{
  display:flex;gap:18px;align-items:center;background:var(--bg-soft);border:1px solid var(--border);
  border-radius:var(--radius);padding:22px;transition:box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.author-box:hover{box-shadow:var(--shadow);border-color:rgba(179,36,74,.3)}
.author-box svg{width:64px;height:64px;flex:none;border-radius:50%;box-shadow:0 6px 18px rgba(179,36,74,.25)}
.author-box h4{font-size:16px;margin-bottom:4px}
.author-box p{font-size:13.5px;color:var(--text-soft)}

/* ============ 面包屑 ============ */
.breadcrumb{font-size:13.5px;padding:14px 0;color:var(--text-soft)}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--text-soft)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb li{display:flex;align-items:center}
.breadcrumb li::after{content:"›";margin-left:6px;color:var(--text-soft);opacity:.6}
.breadcrumb li:last-child::after{content:""}
.breadcrumb li[aria-current]{color:var(--brand);font-weight:600}

/* ============ 页脚 ============ */
.site-footer{
  background:linear-gradient(180deg,#1a1216,#120c0f);
  color:#d9d2d5;padding:56px 0 0;margin-top:40px;position:relative;overflow:hidden;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);opacity:.7}
.site-footer a{color:#e8d5db;transition:color .22s var(--ease),padding-left .22s var(--ease)}
.site-footer a:hover{color:#fff;text-decoration:none;padding-left:4px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:1px;position:relative;padding-bottom:10px}
.site-footer h3::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.site-footer ul{list-style:none;display:grid;gap:9px;font-size:14px}
.site-footer p{font-size:13.5px;line-height:1.9;color:#b9aeb3}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;color:#a89ba1;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;align-items:center;
}
.legal-links{display:flex;gap:16px;flex-wrap:wrap}
.legal-links a{color:#a89ba1}
.legal-links a:hover{color:#fff}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;border:0;cursor:pointer;
  display:none;align-items:center;justify-content:center;box-shadow:0 10px 28px rgba(179,36,74,.4);
  z-index:1200;font-size:18px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),opacity .25s var(--ease);
}
.to-top.show{display:flex;animation:popIn .3s var(--ease)}
.to-top:hover{transform:translateY(-4px) scale(1.06);box-shadow:0 16px 36px rgba(179,36,74,.5)}
.to-top:active{transform:scale(.94)}
@keyframes popIn{from{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}

/* ============ 滚动动画 ============ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease);will-change:opacity,transform}
.reveal.visible{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .hero-visual{width:34%;opacity:.7}
  .grid-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-visual{display:none}
  .search-box input{width:130px}
  .search-box input:focus{width:150px}
}
@media(max-width:720px){
  body{font-size:15.5px}
  .main-nav{
    position:fixed;top:0;right:-100%;width:78%;max-width:320px;height:100vh;
    background:var(--glass);
    -webkit-backdrop-filter:blur(24px) saturate(180%);backdrop-filter:blur(24px) saturate(180%);
    border-left:1px solid var(--glass-border);
    box-shadow:-8px 0 30px rgba(0,0,0,.2);padding:80px 20px 20px;transition:right .35s var(--ease);
    z-index:1500;overflow-y:auto;
  }
  .main-nav.open{right:0}
  .main-nav ul{flex-direction:column;gap:6px}
  .main-nav a{padding:12px 14px;font-size:16px}
  .main-nav a::after{display:none}
  .menu-toggle{display:flex}
  .search-box input{width:100px}
  .search-box input:focus{width:120px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:10px;padding:24px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .topbar .container{justify-content:center;text-align:center}
  .section{padding:50px 0}
  .hero .container{padding-top:44px;padding-bottom:44px}
  .hero-slides{min-height:0}
  .card,.case-card,.contact-card{padding:20px}
  .step{padding:18px;gap:14px}
  .step:hover{transform:none}
  .faq-item button{padding:16px 18px;font-size:15px}
  .faq-item .answer{padding:0 18px}
  .to-top{right:14px;bottom:16px;width:44px;height:44px}
  .author-box{flex-direction:column;text-align:center}
  .contact-list li{flex-direction:column;gap:4px}
  .contact-list li strong{min-width:0}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media(max-width:400px){
  .hero-tags span{font-size:12.5px;padding:5px 11px}
  .btn{padding:11px 20px;font-size:14px}
  .logo{font-size:17px}
  .logo svg{width:32px;height:32px}
}

/* ============ 降低动态偏好 ============ */
@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{
  .site-header,.topbar,.to-top,.hero-dots,.hero-visual,.nav-tools{display:none!important}
  body{background:#fff;color:#000}
  .card,.article-card,.case-card,.quote,.faq-item,.step,.contact-card{box-shadow:none;border:1px solid #ccc;break-inside:avoid}
  .reveal{opacity:1;transform:none}
}