*{margin:0;padding:0;box-sizing:border-box}
:root{
  --red:#e0261c;
  --red-deep:#b81a12;
  --red-soft:#fdeceb;
  --red-line:#f6c9c5;
  --ink:#241312;
  --ink-2:#5a403e;
  --ink-3:#8b7472;
  --bg:#fff8f7;
  --bg-2:#fdeeea;
  --card:#ffffff;
  --line:#f0d9d5;
  --radius:16px;
  --shadow:0 10px 30px rgba(184,26,18,.08);
  --shadow-hover:0 18px 42px rgba(184,26,18,.16);
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,248,247,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:1180px;margin:0 auto;padding:10px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{height:38px;width:auto;max-width:100%}
.brand-text{font-size:19px;font-weight:800;color:var(--red-deep);letter-spacing:.5px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.nav-links a{
  display:inline-block;padding:8px 11px;font-size:14.5px;color:var(--ink-2);
  font-weight:500;border-radius:8px;transition:.22s;white-space:nowrap;
}
.nav-links a:hover{color:var(--red);background:var(--red-soft)}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  background:linear-gradient(135deg,var(--red),var(--red-deep));color:#fff;
  padding:9px 18px;border-radius:999px;font-size:14.5px;font-weight:600;
  box-shadow:0 8px 18px rgba(184,26,18,.28);transition:.25s;white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(184,26,18,.36);color:#fff}
.menu-toggle{
  display:none;background:var(--red-soft);border:1px solid var(--red-line);
  color:var(--red-deep);width:42px;height:42px;border-radius:10px;font-size:20px;cursor:pointer;
}
.mobile-nav{display:none;background:#fff;border-bottom:1px solid var(--line);padding:8px 20px 16px}
.mobile-nav a{display:block;padding:11px 8px;font-size:15px;color:var(--ink-2);border-radius:8px}
.mobile-nav a:hover{background:var(--red-soft);color:var(--red)}
.mobile-nav.open{display:block}

/* ===== 按钮通用 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:10px;font-size:15px;font-weight:600;
  cursor:pointer;border:none;transition:.25s;line-height:1.3;
}
.btn-primary{background:linear-gradient(135deg,var(--red),var(--red-deep));color:#fff;box-shadow:0 10px 24px rgba(184,26,18,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(184,26,18,.4)}
.btn-ghost{background:#fff;color:var(--red-deep);border:1.5px solid var(--red-line)}
.btn-ghost:hover{background:var(--red-soft);border-color:var(--red);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.99)}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 85% 15%,rgba(224,38,28,.16),transparent 42%),
    radial-gradient(circle at 8% 80%,rgba(255,196,120,.22),transparent 45%),
    linear-gradient(165deg,#fff4f2 0%,#ffe6e2 48%,#fdd8d3 100%);
  padding:64px 0 78px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(224,38,28,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(224,38,28,.055) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 82%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 82%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.85);border:1px solid var(--red-line);color:var(--red-deep);
  padding:6px 16px;border-radius:999px;font-size:13.5px;font-weight:600;margin-bottom:20px;
  box-shadow:0 4px 14px rgba(224,38,28,.08);
}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--red);animation:pulse 1.9s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(224,38,28,.5)}50%{box-shadow:0 0 0 7px rgba(224,38,28,0)}}
h1.hero-title{
  font-size:clamp(28px,4vw,46px);line-height:1.22;font-weight:900;
  color:var(--ink);letter-spacing:-.5px;margin-bottom:20px;
}
h1.hero-title em{font-style:normal;color:var(--red);position:relative;white-space:nowrap}
h1.hero-title em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:9px;
  background:linear-gradient(90deg,rgba(224,38,28,.28),rgba(224,38,28,.06));
  border-radius:4px;z-index:-1;
}
.hero-desc{font-size:16.5px;color:var(--ink-2);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
.hero-tags span{
  font-size:13px;padding:5px 13px;border-radius:8px;background:rgba(255,255,255,.75);
  border:1px solid var(--red-line);color:var(--red-deep);font-weight:500;
}
.hero-panel{
  background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.9);
  border-radius:22px;padding:26px 24px;box-shadow:0 24px 50px rgba(184,26,18,.14);
  backdrop-filter:blur(8px);
}
.hero-panel h3{font-size:17px;color:var(--ink);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.hero-panel h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--red)}
.hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}
.metric{padding:14px 12px;border-radius:12px;background:linear-gradient(140deg,#fff5f3,#ffe8e4);border:1px solid var(--red-line);transition:.25s}
.metric:hover{transform:translateY(-3px);box-shadow:0 10px 22px rgba(184,26,18,.12)}
.metric b{display:block;font-size:22px;color:var(--red-deep);font-weight:800;line-height:1.2}
.metric span{font-size:12.5px;color:var(--ink-3)}
.hero-panel .btn{width:100%}

/* ===== 区块通用 ===== */
.section{padding:70px 0}
.section.alt{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.section-head{text-align:center;max-width:760px;margin:0 auto 44px}
.section-tag{
  display:inline-block;font-size:13px;font-weight:700;color:var(--red);
  background:var(--red-soft);padding:5px 15px;border-radius:999px;margin-bottom:14px;
  letter-spacing:.5px;
}
.section-head h2{font-size:clamp(23px,3vw,33px);font-weight:800;color:var(--ink);line-height:1.32;margin-bottom:12px;letter-spacing:-.3px}
.section-head p{font-size:15.5px;color:var(--ink-2)}

/* ===== 关于我们 / 平台介绍 ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:stretch}
.about-main{
  background:linear-gradient(150deg,#fff,#fff4f2);border:1px solid var(--line);
  border-radius:var(--radius);padding:34px 32px;box-shadow:var(--shadow);
}
.about-main h3{font-size:21px;color:var(--ink);margin-bottom:14px}
.about-main p{font-size:15px;color:var(--ink-2);margin-bottom:14px}
.about-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}
.about-list li{
  display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:9px;padding:9px 12px;transition:.22s;
}
.about-list li:hover{border-color:var(--red-line);background:var(--red-soft);transform:translateX(3px)}
.about-list li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--red);flex-shrink:0}
.about-side{display:flex;flex-direction:column;gap:16px}
.about-mini{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;
  transition:.25s;box-shadow:0 4px 14px rgba(184,26,18,.04);
}
.about-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--red-line)}
.about-mini h4{font-size:16px;color:var(--red-deep);margin-bottom:6px;display:flex;align-items:center;gap:8px}
.about-mini h4 i{width:26px;height:26px;border-radius:8px;background:var(--red-soft);display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-size:13px;color:var(--red);font-weight:800}
.about-mini p{font-size:14px;color:var(--ink-2)}

/* ===== 服务能力卡片 ===== */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:.28s;position:relative;overflow:hidden;
}
.svc-card::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--red),#ff8a5c);transition:.35s;
}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--red-line)}
.svc-card:hover::after{width:100%}
.svc-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--red-soft),#ffd9d3);color:var(--red-deep);
  font-size:20px;font-weight:800;margin-bottom:16px;
}
.svc-card h3{font-size:17.5px;color:var(--ink);margin-bottom:8px}
.svc-card p{font-size:14px;color:var(--ink-2)}
.svc-more{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px}
.scene-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;
  transition:.24s;display:flex;gap:12px;align-items:flex-start;
}
.scene-item:hover{border-color:var(--red-line);background:#fffaf9;transform:translateY(-3px);box-shadow:0 10px 22px rgba(184,26,18,.07)}
.scene-item .num{
  flex-shrink:0;width:28px;height:28px;border-radius:8px;background:var(--red-soft);
  color:var(--red-deep);font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.scene-item b{display:block;font-size:14.5px;color:var(--ink);margin-bottom:2px}
.scene-item span{font-size:13px;color:var(--ink-3);line-height:1.55}

/* ===== 模型标签云 ===== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:8px}
.tag-cloud span{
  font-size:13.5px;padding:8px 16px;border-radius:999px;background:#fff;
  border:1px solid var(--line);color:var(--ink-2);font-weight:500;transition:.22s;cursor:default;
}
.tag-cloud span:hover{background:var(--red);color:#fff;border-color:var(--red);transform:translateY(-3px);box-shadow:0 8px 18px rgba(224,38,28,.25)}

/* ===== 流程步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;position:relative;transition:.28s;
}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--red-line)}
.step-no{
  font-size:34px;font-weight:900;color:var(--red-soft);line-height:1;margin-bottom:10px;
  -webkit-text-stroke:1px var(--red-line);
}
.step h3{font-size:16.5px;color:var(--ink);margin-bottom:7px}
.step p{font-size:13.5px;color:var(--ink-2)}

/* ===== 对比评测 ===== */
.compare-wrap{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.compare-score{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  padding:26px 30px;background:linear-gradient(120deg,#fff1ef,#ffe4e0);
  border-bottom:1px solid var(--line);
}
.score-left{display:flex;align-items:center;gap:18px}
.score-badge{
  width:78px;height:78px;border-radius:18px;background:linear-gradient(140deg,var(--red),var(--red-deep));
  color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  box-shadow:0 12px 26px rgba(184,26,18,.3);flex-shrink:0;
}
.score-badge b{font-size:26px;line-height:1;font-weight:900}
.score-badge span{font-size:11px;opacity:.9;margin-top:3px}
.score-info h3{font-size:20px;color:var(--ink);margin-bottom:4px}
.score-info p{font-size:14px;color:var(--ink-2)}
.score-stars{font-size:20px;color:#ffb020;letter-spacing:3px}
.score-stars small{display:block;font-size:13px;color:var(--ink-2);letter-spacing:0;margin-top:2px}
.table-scroll{overflow-x:auto}
table.compare{width:100%;border-collapse:collapse;min-width:680px}
table.compare th,table.compare td{padding:15px 22px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
table.compare thead th{background:#fff8f7;color:var(--ink);font-weight:700;font-size:14.5px}
table.compare thead th:nth-child(2){color:var(--red-deep)}
table.compare tbody tr{transition:.2s}
table.compare tbody tr:hover{background:#fffaf9}
table.compare td:first-child{color:var(--ink-2);font-weight:500}
table.compare td:nth-child(2){color:var(--ink);font-weight:600}
table.compare td:nth-child(3){color:var(--ink-3)}
.compare-note{padding:18px 30px;background:#fff8f7;font-size:13.5px;color:var(--ink-3);border-top:1px solid var(--line)}

/* ===== 案例展示 ===== */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:.3s;box-shadow:0 4px 16px rgba(184,26,18,.05);
}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--red-line)}
.case-media{aspect-ratio:16/9;overflow:hidden;background:#fdeeea}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-card:hover .case-media img{transform:scale(1.05)}
.case-body{padding:20px 22px}
.case-body h3{font-size:17px;color:var(--ink);margin-bottom:6px}
.case-body p{font-size:14px;color:var(--ink-2)}
.case-square-wrap{display:flex;justify-content:center;margin-top:26px}
.case-square{
  width:100%;max-width:520px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:#fff;box-shadow:var(--shadow);transition:.3s;
}
.case-square:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.case-square img{width:100%;height:auto;object-fit:contain}

/* ===== 用户评论 ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 24px;position:relative;transition:.28s;display:flex;flex-direction:column;
}
.review:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--red-line)}
.review::before{
  content:"\201C";position:absolute;right:18px;top:8px;font-size:60px;line-height:1;
  color:var(--red-soft);font-family:Georgia,serif;
}
.review-stars{color:#ffb020;font-size:14px;letter-spacing:2px;margin-bottom:12px}
.review p{font-size:14.5px;color:var(--ink-2);flex:1;margin-bottom:16px;position:relative;z-index:1}
.review-user{display:flex;align-items:center;gap:11px;padding-top:14px;border-top:1px solid var(--line)}
.avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(140deg,var(--red),#ff8a5c);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;
}
.review-user b{display:block;font-size:14px;color:var(--ink)}
.review-user span{font-size:12.5px;color:var(--ink-3)}

/* ===== Token比价 / 价格参考 ===== */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;transition:.28s;display:flex;flex-direction:column;
}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--red-line)}
.price-card.featured{
  background:linear-gradient(160deg,#fff6f4,#ffe6e2);border-color:var(--red-line);
  box-shadow:0 14px 32px rgba(184,26,18,.13);position:relative;
}
.price-card.featured::before{
  content:"推荐";position:absolute;top:16px;right:16px;font-size:12px;font-weight:700;
  background:var(--red);color:#fff;padding:3px 12px;border-radius:999px;
}
.price-card h3{font-size:17px;color:var(--ink);margin-bottom:6px}
.price-card .price-sub{font-size:13px;color:var(--ink-3);margin-bottom:16px}
.price-num{font-size:30px;font-weight:900;color:var(--red-deep);line-height:1.2}
.price-num small{font-size:14px;font-weight:500;color:var(--ink-3)}
.price-feats{margin-top:18px;display:flex;flex-direction:column;gap:9px;flex:1}
.price-feats li{font-size:13.5px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start}
.price-feats li::before{content:"✓";color:var(--red);font-weight:800;flex-shrink:0}
.price-card .btn{margin-top:20px;width:100%;padding:11px 18px;font-size:14px}

/* ===== 需求匹配表单 ===== */
.form-wrap{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:32px;align-items:stretch;
}
.form-info{
  background:linear-gradient(155deg,#2a1614,#5c1e18);border-radius:20px;padding:36px 32px;color:#fff;
  display:flex;flex-direction:column;box-shadow:0 18px 40px rgba(42,22,20,.22);
}
.form-info h3{font-size:22px;margin-bottom:12px;color:#fff}
.form-info p{font-size:14.5px;color:rgba(255,255,255,.82);margin-bottom:24px}
.contact-list{display:flex;flex-direction:column;gap:14px;margin-top:auto}
.contact-item{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.9)}
.contact-item i{
  width:30px;height:30px;border-radius:9px;background:rgba(255,255,255,.14);
  display:inline-flex;align-items:center;justify-content:center;font-style:normal;flex-shrink:0;font-size:13px;font-weight:700;
}
.contact-item b{display:block;font-size:13px;color:rgba(255,255,255,.62);font-weight:500}
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px 32px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:16px;display:flex;flex-direction:column}
.form-group label{font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:6px}
.form-group label span{color:var(--red)}
.form-group input,.form-group select,.form-group textarea{
  font-family:inherit;font-size:14.5px;color:var(--ink);background:#fffaf9;
  border:1px solid var(--line);border-radius:10px;padding:12px 14px;transition:.22s;width:100%;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--red);background:#fff;box-shadow:0 0 0 3px rgba(224,38,28,.1);
}
.form-group textarea{resize:vertical;min-height:96px}
.form-card .btn{width:100%;margin-top:6px}
.form-tip{font-size:12.5px;color:var(--ink-3);text-align:center;margin-top:12px}

/* ===== FAQ ===== */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s}
.faq-item:hover{border-color:var(--red-line);box-shadow:0 6px 18px rgba(184,26,18,.06)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;padding:18px 22px;
  font-size:15.5px;font-weight:600;color:var(--ink);cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:14px;font-family:inherit;
}
.faq-q .ico{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--red-soft);color:var(--red-deep);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;transition:.3s;line-height:1;
}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:var(--red);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2)}

/* ===== 文章列表 ===== */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.article-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 22px;
  transition:.26s;display:flex;flex-direction:column;gap:10px;
}
.article-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--red-line)}
.article-tag{font-size:12px;color:var(--red);background:var(--red-soft);padding:3px 10px;border-radius:6px;align-self:flex-start;font-weight:600}
.article-item h3{font-size:15.5px;color:var(--ink);line-height:1.5}
.article-item p{font-size:13.5px;color:var(--ink-3);flex:1}
.article-link{font-size:13.5px;color:var(--red-deep);font-weight:600;display:inline-flex;align-items:center;gap:5px}
.article-link:hover{gap:9px}
.article-link::after{content:"→";transition:.22s}

/* ===== 服务网络 / 时间线 ===== */
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.net-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 20px;transition:.26s}
.net-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--red-line)}
.net-card b{font-size:16px;color:var(--red-deep);display:block;margin-bottom:5px}
.net-card span{font-size:13.5px;color:var(--ink-2)}
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:28px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--red-line),var(--red-soft))}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-26px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px var(--red-soft)}
.tl-item b{display:block;font-size:15.5px;color:var(--ink);margin-bottom:3px}
.tl-item span{font-size:13.5px;color:var(--ink-2)}

/* ===== 友情链接 ===== */
.friend-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.friend-links a{
  font-size:13.5px;padding:7px 16px;border-radius:8px;background:#fff;border:1px solid var(--line);
  color:var(--ink-2);transition:.22s;
}
.friend-links a:hover{background:var(--red-soft);color:var(--red-deep);border-color:var(--red-line);transform:translateY(-2px)}

/* ===== 页脚 ===== */
.site-footer{background:#241312;color:rgba(255,255,255,.72);padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand img{height:34px;width:auto}
.footer-brand b{font-size:17px;color:#fff}
.footer-desc{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);margin-bottom:16px}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col a,.footer-col p{display:block;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:9px;transition:.2s}
.footer-col a:hover{color:#ff8a5c}
.footer-qr{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.footer-qr img{width:88px;height:88px;object-fit:contain;border-radius:8px;background:#fff;padding:5px}
.footer-qr span{font-size:12.5px;color:rgba(255,255,255,.6)}
.footer-bottom{padding:20px 0 26px;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#ff8a5c}

/* ===== 浮动客服 / 返回顶部 ===== */
.float-tools{position:fixed;right:18px;bottom:26px;z-index:120;display:flex;flex-direction:column;gap:10px}
.float-btn{
  width:48px;height:48px;border-radius:14px;background:#fff;border:1px solid var(--red-line);
  color:var(--red-deep);box-shadow:0 8px 22px rgba(184,26,18,.16);cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:17px;transition:.25s;
}
.float-btn:hover{background:var(--red);color:#fff;transform:translateY(-3px)}
.float-btn.cs{background:linear-gradient(140deg,var(--red),var(--red-deep));color:#fff;border:none}
.kefu-pop{
  position:fixed;right:76px;bottom:26px;z-index:121;width:220px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:16px;box-shadow:0 16px 40px rgba(184,26,18,.18);
  display:none;text-align:center;
}
.kefu-pop.show{display:block;animation:fadeUp .3s ease}
.kefu-pop img{width:160px;height:160px;object-fit:contain;margin:0 auto 8px;border-radius:8px}
.kefu-pop p{font-size:12.5px;color:var(--ink-2);line-height:1.6}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* ===== 滚动渐入 ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .nav-links{display:none}
  .menu-toggle{display:flex;align-items:center;justify-content:center}
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero-panel{max-width:560px}
  .cards-grid,.review-grid,.price-grid,.article-grid{grid-template-columns:repeat(2,1fr)}
  .steps,.net-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .about-grid,.form-wrap{grid-template-columns:1fr}
  .svc-more{grid-template-columns:1fr}
}
@media(max-width:680px){
  .section{padding:52px 0}
  .hero{padding:44px 0 56px}
  .cards-grid,.review-grid,.price-grid,.article-grid,.case-grid{grid-template-columns:1fr}
  .steps,.net-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .about-list{grid-template-columns:1fr}
  .hero-metrics{grid-template-columns:1fr 1fr}
  .compare-score{padding:20px}
  .score-badge{width:66px;height:66px}
  .footer-grid{grid-template-columns:1fr}
  .nav-cta{display:none}
  .float-tools{right:12px;bottom:16px}
  .kefu-pop{right:70px;width:190px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}