/* ===== SocialEcho 风格原型 · 共享样式 ===== */
:root{
  --primary:#0088FF;
  --primary-soft:rgba(0,136,255,0.1);
  --accent:#EF4444;
  --ink:#111827;
  --gray:#4B5563;
  --bg:#FFFFFF;
  --bg-soft:#F9FAFB;
  --line:#E5E7EB;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 4px 20px rgba(17,24,39,0.06);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter','Figtree','PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  color:var(--ink);background:var(--bg);font-size:16px;line-height:1.6;
}
a{text-decoration:none;color:inherit;}
img{max-width:100%;display:block;}

/* 容器 */
.container{max-width:1180px;margin:0 auto;padding:0 24px;}

/* ===== 顶部导航 ===== */
.nav{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;}
.brand .logo{width:34px;height:34px;border-radius:9px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;}
.nav-links{display:flex;gap:26px;align-items:center;font-size:15px;color:var(--gray);}
.nav-links a:hover{color:var(--primary);}
.nav-right{display:flex;align-items:center;gap:12px;}
.lang-btn{border:1px solid var(--line);background:#fff;padding:7px 14px;border-radius:999px;font-size:14px;color:var(--ink);cursor:pointer;}
.lang-btn:hover{border-color:var(--primary);color:var(--primary);}
.btn-primary{background:var(--primary);color:#fff;border:none;padding:10px 20px;border-radius:16px;font-size:15px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:opacity .2s;}
.btn-primary:hover{opacity:.85;}
.btn-ghost{background:#fff;color:var(--primary);border:1.5px solid var(--primary);padding:10px 20px;border-radius:16px;font-size:15px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:6px;}
.btn-ghost:hover{background:var(--primary-soft);}
.btn-white{background:#fff;color:var(--primary);border:none;padding:13px 28px;border-radius:16px;font-size:16px;font-weight:700;cursor:pointer;}
.btn-white:hover{opacity:.9;}

/* ===== Hero ===== */
.hero{position:relative;text-align:center;padding:64px 24px 48px;background:
  radial-gradient(1000px 500px at 70% -10%, rgba(0,136,255,.14), transparent 60%),
  linear-gradient(180deg,#ffffff,#f5f8ff);overflow:hidden;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--primary-soft);color:var(--primary);border-radius:999px;padding:8px 18px;font-size:14px;font-weight:600;margin-bottom:22px;}
.hero h1{font-size:60px;line-height:1.2;font-weight:700;letter-spacing:-1px;max-width:860px;margin:0 auto 18px;}
.hero h1 .hl{color:var(--primary);}
.hero-sub{font-size:24px;color:var(--gray);max-width:680px;margin:0 auto 34px;font-weight:500;}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:46px;}
.hero-note{font-size:14px;color:var(--gray);margin-top:14px;}

/* 信任数字条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 20px;box-shadow:var(--shadow);}
.stat-num{font-size:40px;font-weight:800;color:var(--primary);line-height:1.1;}
.stat-label{font-size:14px;color:var(--gray);margin-top:4px;}

/* ===== 区块通用 ===== */
.section{padding:64px 0;}
.section-title{text-align:center;font-size:36px;font-weight:700;margin-bottom:12px;}
.section-sub{text-align:center;font-size:18px;color:var(--gray);max-width:640px;margin:0 auto 44px;}

/* 动态演示区 */
.demo{background:linear-gradient(135deg,#0b2a4a,#0e4b8f);border-radius:24px;padding:34px 28px;color:#fff;margin-top:48px;position:relative;overflow:hidden;}
.demo-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.demo-title{font-size:20px;font-weight:700;display:flex;align-items:center;gap:10px;}
.pulse{width:9px;height:9px;border-radius:50%;background:#22c55e;display:inline-block;animation:blink 1.2s infinite;}
@keyframes blink{0%,100%{opacity:1;}50%{opacity:.25;}}
.demo-tag{background:rgba(255,255,255,.16);padding:6px 14px;border-radius:999px;font-size:13px;}
.demo-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.demo-card{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.15);border-radius:14px;padding:16px;}
.demo-card .dc-name{font-weight:700;font-size:15px;}
.demo-card .dc-meta{font-size:13px;color:#cfe6ff;margin-top:4px;}
.demo-card .dc-num{font-size:20px;font-weight:700;margin-top:8px;}

/* 为什么选我们 */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;transition:transform .2s,box-shadow .2s;}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.feature .f-icon{width:46px;height:46px;border-radius:12px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;}
.feature h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.feature p{font-size:14px;color:var(--gray);}

/* 达人卡片 */
.creators-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.creator-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:transform .2s,box-shadow .2s;display:block;}
.creator-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.cc-thumb{height:150px;background:linear-gradient(135deg,var(--primary-soft),#eef4ff);display:flex;align-items:center;justify-content:center;font-size:46px;position:relative;}
.cc-thumb .cc-emoji{filter:drop-shadow(0 4px 8px rgba(0,0,0,.08));}
.cc-thumb .cc-img{width:100%;height:150px;object-fit:cover;display:block;}
.cc-body{padding:16px;}
.cc-name{font-weight:700;font-size:16px;}
.cc-handle{font-size:13px;color:var(--gray);margin:2px 0 8px;}
.cc-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px;}
.tag{background:var(--bg-soft);border:1px solid var(--line);color:var(--gray);font-size:12px;padding:3px 9px;border-radius:999px;}
.tag-type{background:var(--primary-soft);border-color:rgba(0,136,255,.25);color:var(--primary);font-weight:600;}
.cc-data{display:flex;justify-content:space-between;font-size:14px;margin-bottom:10px;}
.cc-data b{font-size:15px;}
.rate-hi{color:var(--primary);}
.rate-mid{color:var(--gray);}
.rate-lo{color:var(--accent);}
.cc-price{font-size:13px;color:var(--gray);border-top:1px dashed var(--line);padding-top:9px;display:flex;justify-content:space-between;align-items:center;}
.cc-price .see{color:var(--primary);font-weight:600;font-size:14px;}

/* 品牌墙 */
.logo-wall{background:var(--bg-soft);border-radius:20px;padding:34px 28px;text-align:center;}
.logo-wall .lw-label{font-size:14px;color:var(--gray);margin-bottom:20px;letter-spacing:.5px;}
.logo-row{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;color:#9CA3AF;font-weight:700;font-size:16px;}
.badge-row{display:flex;justify-content:center;gap:14px;margin-top:24px;flex-wrap:wrap;}
.badge{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 18px;font-size:13px;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}

/* 解决方案 */
.solutions{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.solution{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;cursor:pointer;transition:all .2s;}
.solution:hover{border-color:var(--primary);box-shadow:var(--shadow);}
.solution .s-icon{width:44px;height:44px;border-radius:12px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:14px;}
.solution h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.solution p{font-size:13px;color:var(--gray);}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
.step{text-align:center;padding:0 18px;position:relative;}
.step .step-num{width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:20px;margin:0 auto 14px;}
.step h4{font-size:16px;font-weight:700;margin-bottom:6px;}
.step p{font-size:13px;color:var(--gray);}

/* CTA 大区块 */
.cta-block{background:linear-gradient(135deg,#0088FF,#0056d6);border-radius:24px;text-align:center;padding:56px 28px;color:#fff;}
.cta-block h2{font-size:34px;font-weight:700;margin-bottom:12px;}
.cta-block p{font-size:17px;opacity:.9;margin-bottom:26px;}

/* ===== 页脚 ===== */
.footer{background:#0f172a;color:#cbd5e1;padding:52px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:28px;padding-bottom:40px;}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px;}
.footer ul{list-style:none;}
.footer li{margin-bottom:9px;font-size:13.5px;}
.footer a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:13px;color:#94a3b8;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}
.cookie-bar{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 8px 30px rgba(0,0,0,.12);padding:14px 20px;display:flex;align-items:center;gap:18px;font-size:14px;z-index:200;max-width:640px;width:92%;}
.cookie-bar .btn-small{background:var(--primary);color:#fff;border:none;padding:8px 18px;border-radius:999px;cursor:pointer;font-size:14px;font-weight:600;}

/* ===== 页面子页通用 ===== */
.page-head{padding:52px 0 30px;text-align:center;background:linear-gradient(180deg,#f5f8ff,#fff);}
.page-head h1{font-size:40px;font-weight:700;}
.page-head p{font-size:18px;color:var(--gray);margin-top:10px;}

/* 筛选栏 */
.filters{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:36px;}
.filters select{border:1px solid var(--line);background:#fff;padding:10px 16px;border-radius:12px;font-size:14px;color:var(--ink);cursor:pointer;}
.filters .reset{border:1px solid var(--line);background:#fff;padding:10px 16px;border-radius:12px;font-size:14px;color:var(--gray);cursor:pointer;}
.filters select:hover,.filters .reset:hover{border-color:var(--primary);color:var(--primary);}

/* 详情页 */
.detail-wrap{max-width:1080px;margin:0 auto;padding:30px 24px 60px;}
.back-link{color:var(--primary);font-size:14px;font-weight:600;margin-bottom:20px;display:inline-block;}
.detail-card{display:grid;grid-template-columns:1fr 1fr;gap:34px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow);}
.detail-thumb{height:340px;background:linear-gradient(135deg,var(--primary-soft),#eef4ff);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:120px;}
.detail-info h1{font-size:30px;font-weight:800;margin:6px 0 4px;}
.detail-info .dh{color:var(--gray);font-size:15px;margin-bottom:14px;}
.detail-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:16px 0;}
.metric{background:var(--bg-soft);border-radius:12px;padding:14px;text-align:center;}
.metric .m-num{font-size:22px;font-weight:800;color:var(--primary);}
.metric .m-label{font-size:12px;color:var(--gray);margin-top:2px;}
.price-box{background:var(--primary-soft);border-radius:12px;padding:16px;margin:14px 0;}
.price-box .pb-line{display:flex;justify-content:space-between;font-size:15px;margin-bottom:6px;}
.price-box .pb-line b{font-size:16px;color:var(--primary);}
.detail-extra{max-width:1080px;margin:30px auto 0;padding:0 24px;}
.detail-extra h2{font-size:24px;font-weight:700;margin-bottom:14px;}
.detail-extra p{color:var(--gray);font-size:15px;max-width:760px;}
.style-tags{display:flex;flex-wrap:wrap;gap:10px;}
.style-tag{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(37,99,235,.18);padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;}

/* 表单页 */
.form-wrap{max-width:640px;margin:0 auto;padding:30px 24px 70px;}
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--shadow);}
.form-group{margin-bottom:20px;}
.form-group label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;}
.form-group .req{color:var(--accent);}
.form-group input,.form-group select,.form-group textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:15px;font-family:inherit;color:var(--ink);}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);}
.check-row{display:flex;flex-wrap:wrap;gap:10px;}
.check-pill{border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:14px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;}
.check-pill.on{border-color:var(--primary);background:var(--primary-soft);color:var(--primary);font-weight:600;}
.form-note{font-size:13px;color:var(--gray);margin-top:14px;text-align:center;}
.success-msg{display:none;background:#ecfdf5;border:1px solid #6ee7b7;color:#047857;border-radius:12px;padding:16px;margin-top:18px;font-size:15px;text-align:center;}

/* 免费工具 */
.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.tool-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;text-align:center;transition:transform .2s,box-shadow .2s;}
.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.tool-card .t-icon{width:52px;height:52px;border-radius:14px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 16px;}
.tool-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.tool-card p{font-size:13px;color:var(--gray);margin-bottom:16px;}
.btn-tool{background:var(--primary);color:#fff;border:none;padding:9px 22px;border-radius:12px;font-size:14px;font-weight:600;cursor:pointer;}

/* 响应式 */
@media(max-width:900px){
  .hero h1{font-size:38px;}
  .hero-sub{font-size:18px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .features,.solutions,.steps,.creators-grid,.demo-cards,.tools-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .nav-links{display:none;}
  .detail-card{grid-template-columns:1fr;}
}
@media(max-width:560px){
  .features,.solutions,.steps,.creators-grid,.demo-cards,.tools-grid,.footer-grid{grid-template-columns:1fr;}
  .hero h1{font-size:30px;}
  .stat-num{font-size:30px;}
}

/* ===== 微信号弹窗（获取达人更多信息）===== */
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;align-items:center;justify-content:center;z-index:1000;padding:20px;}
.modal-mask.show{display:flex;}
.modal-card{background:#fff;border-radius:20px;max-width:400px;width:100%;padding:30px 26px 26px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.2);position:relative;animation:pop .25s ease;max-height:92vh;overflow-y:auto;}
@keyframes pop{from{transform:scale(.92);opacity:0;}to{transform:scale(1);opacity:1;}}
.modal-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:22px;color:var(--gray);cursor:pointer;line-height:1;}
.modal-close:hover{color:var(--ink);}
.modal-icon{width:56px;height:56px;border-radius:16px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;font-size:28px;margin:0 auto 16px;}
.modal-card h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.modal-card .m-sub{font-size:14px;color:var(--gray);margin-bottom:18px;line-height:1.6;}
.modal-card .m-creator{display:inline-block;background:var(--primary-soft);color:var(--primary);font-weight:700;font-size:14px;border-radius:999px;padding:5px 14px;margin-bottom:16px;}
.modal-card .m-wx{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:1px;margin-bottom:18px;}
.modal-card .m-wx .wx-label{display:block;font-size:13px;color:var(--gray);font-weight:500;letter-spacing:0;margin-bottom:6px;}
.qr-box{width:150px;height:150px;margin:0 auto;border:1.5px dashed var(--line);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--bg-soft);}
.qr-box img{width:100%;height:100%;object-fit:contain;}
.qr-placeholder{font-size:13px;color:var(--gray);text-align:center;line-height:1.7;padding:10px;}
.modal-card .m-hint{font-size:12px;color:#9CA3AF;margin-top:14px;line-height:1.6;}
.modal-card .m-btn{background:var(--primary);color:#fff;border:none;border-radius:999px;padding:10px 26px;font-size:14px;font-weight:600;cursor:pointer;margin-top:16px;}
.modal-card .m-btn-ghost{background:#fff;color:var(--gray);border:1px solid var(--line);border-radius:999px;padding:10px 26px;font-size:14px;font-weight:600;cursor:pointer;margin-top:10px;}
.modal-card .m-btn-ghost:hover{color:var(--ink);border-color:var(--gray);}
.info-data{text-align:left;background:var(--bg-soft);border-radius:12px;padding:14px 18px;margin:6px 0 4px;}
.info-row{display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--ink);padding:7px 0;}
.info-row + .info-row{border-top:1px dashed var(--line);}
.info-row b{font-size:16px;color:var(--primary);margin-left:6px;}
.info-row .rate-hi,.info-row .rate-mid,.info-row .rate-lo{margin-left:6px;}

/* ===== 联系我们页 ===== */
.contact-wrap{padding:10px 0 60px;}
.contact-card{display:grid;grid-template-columns:1fr 1fr;gap:30px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:36px;box-shadow:0 4px 24px rgba(17,24,39,.05);}
.contact-qr{text-align:center;border-right:1px solid var(--line);padding-right:30px;}
.contact-qr-head .contact-icon{width:52px;height:52px;border-radius:14px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 12px;}
.contact-qr-head h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.contact-qr-head p{font-size:14px;color:var(--gray);margin-bottom:18px;}
.contact-qr-img{width:200px;height:200px;margin:0 auto 14px;border:2px solid var(--line);border-radius:16px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#fff;}
.contact-qr-img img{width:100%;height:100%;object-fit:contain;}
.contact-qr-note{font-size:12px;color:#9CA3AF;line-height:1.7;}
.contact-wx{font-size:15px;color:var(--ink);margin-top:10px;}
.contact-wx b{color:var(--primary);}
.contact-info{padding-left:10px;}
.contact-info h3{font-size:18px;font-weight:700;margin-bottom:18px;}
.contact-list{list-style:none;padding:0;margin:0;}
.contact-list li{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line);}
.contact-list li:last-child{border-bottom:none;}
.c-ico{width:40px;height:40px;border-radius:12px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;font-size:19px;flex-shrink:0;}
.c-label{font-size:12px;color:var(--gray);margin-bottom:2px;}
.c-value{font-size:15px;font-weight:600;color:var(--ink);}
.contact-tip{margin-top:16px;background:var(--bg-soft);border-radius:10px;padding:12px 14px;font-size:13px;color:var(--gray);line-height:1.7;}
@media(max-width:900px){.contact-card{grid-template-columns:1fr;}.contact-qr{border-right:none;border-bottom:1px solid var(--line);padding-right:0;padding-bottom:26px;}.contact-info{padding-left:0;padding-top:6px;}}