*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;color:#0d2438;background:#f5faff;line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(900px 520px at 6% -6%,#dceeff 0%,rgba(220,238,255,0) 60%),radial-gradient(820px 500px at 98% 8%,#d9fff4 0%,rgba(217,255,244,0) 62%),radial-gradient(760px 620px at 50% 108%,#e8f2ff 0%,rgba(232,242,255,0) 66%),#f5faff}
img{max-width:100%}
a{color:#0b4ecb}
h1,h2,h3{letter-spacing:-.2px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid #e3eefb}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.ai-page-logo{max-width:100%;height:auto;display:block;max-height:36px;width:auto}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0;flex-wrap:nowrap}
.nav-links a{display:block;padding:9px 12px;font-size:14.5px;color:#2b465c;text-decoration:none;border-radius:10px;white-space:nowrap;transition:color .2s,background .2s}
.nav-links a:hover{color:#0b4ecb;background:#eaf3ff}
.nav-cta{flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:40px;border:1px solid #dbe9fb;background:#fff;border-radius:10px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;background:#0b4ecb;border-radius:2px;transition:transform .25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:999px;font-weight:700;text-decoration:none;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,background .25s ease}
.btn-primary{background:linear-gradient(135deg,#1a6dff,#00c9a7);color:#fff;box-shadow:0 12px 26px rgba(26,109,255,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(26,109,255,.36)}
.btn-ghost{background:#fff;color:#0b4ecb;border-color:#cfe2ff;box-shadow:0 6px 18px rgba(26,109,255,.09)}
.btn-ghost:hover{transform:translateY(-2px);background:#f4f9ff;box-shadow:0 12px 24px rgba(26,109,255,.16)}

/* 首屏 */
.hero{position:relative;overflow:hidden;padding:60px 0 56px;background:linear-gradient(140deg,#ecf5ff 0%,#f8fdff 48%,#e9fff8 100%);border-bottom:1px solid #e4eefb}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(26,109,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(26,109,255,.055) 1px,transparent 1px);background-size:54px 54px;mask-image:radial-gradient(circle at 50% 26%,#000 0%,transparent 76%);-webkit-mask-image:radial-gradient(circle at 50% 26%,#000 0%,transparent 76%)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:start}
.hero-badge{display:inline-flex;align-items:center;gap:8px;margin:0 0 18px;padding:6px 15px;border-radius:999px;background:#fff;border:1px solid #cfe3ff;color:#0b4ecb;font-size:13.5px;font-weight:600;box-shadow:0 6px 18px rgba(26,109,255,.08)}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#00c9a7;box-shadow:0 0 0 4px rgba(0,201,167,.18);animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.28);opacity:.68}}
.hero-title{margin:0 0 16px;font-size:clamp(28px,4.4vw,46px);line-height:1.28;font-weight:800;color:#0d2438}
.hero-title .hl{color:#0b4ecb;background:linear-gradient(180deg,transparent 62%,rgba(0,201,167,.28) 62%);padding:0 4px;border-radius:4px}
.hero-sub{margin:0 0 26px;font-size:16.5px;color:#3d576b;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px}
.hero-points{display:flex;flex-wrap:wrap;gap:8px 20px;list-style:none;margin:0;padding:0;font-size:14.5px;color:#3d576b}
.hero-points li{position:relative;padding-left:18px}
.hero-points li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:#00c9a7}

.model-board{position:relative;z-index:2;background:rgba(255,255,255,.94);border:1px solid #dbe9fb;border-radius:24px;padding:24px;box-shadow:0 26px 54px rgba(15,60,120,.13)}
.board-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}
.board-head h2{margin:0;font-size:17px;font-weight:800;color:#0d2438}
.board-count{font-size:13px;font-weight:700;color:#0b4ecb;background:#e7f1ff;border-radius:999px;padding:3px 12px}
.board-desc{margin:0 0 16px;font-size:13.5px;color:#5a7183}
.model-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.model-tags span{font-size:12.5px;color:#1b4a7a;background:#f2f8ff;border:1px solid #dceafc;border-radius:8px;padding:4px 9px;transition:background .2s,transform .2s,box-shadow .2s}
.model-tags span:hover{background:#e4f1ff;transform:translateY(-2px);box-shadow:0 8px 16px rgba(26,109,255,.12)}
.board-link{display:inline-block;font-size:14px;font-weight:700;color:#0b4ecb;text-decoration:none}
.board-link:hover{color:#1a6dff}

.metrics{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.metric{background:#fff;border:1px solid #e2eefb;border-radius:18px;padding:18px 20px;text-align:center;box-shadow:0 12px 26px rgba(15,60,120,.06);transition:transform .25s,box-shadow .25s}
.metric:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(15,60,120,.12)}
.metric strong{display:block;font-size:26px;line-height:1.25;color:#0b4ecb;font-weight:800}
.metric span{font-size:13.5px;color:#5a7183}

/* 通用区块 */
.section{padding:72px 0}
.section.band{background:linear-gradient(180deg,rgba(233,244,255,.85) 0%,rgba(246,252,255,.9) 100%);border-top:1px solid #e7f1fc;border-bottom:1px solid #e7f1fc}
.section-head{max-width:760px;margin:0 auto 40px;text-align:center}
.eyebrow{display:inline-block;margin:0 0 14px;font-size:13px;font-weight:700;letter-spacing:2px;color:#0b4ecb;background:#e6f1ff;border:1px solid #cfe3ff;padding:5px 14px;border-radius:999px}
.section-head h2{margin:0 0 12px;font-size:clamp(23px,3.2vw,34px);line-height:1.36;color:#0d2438}
.section-head p{margin:0;color:#4a6274;font-size:15.5px}

/* 关于我们 */
.about-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:42px;align-items:start}
.about-copy h2{margin:0 0 16px;font-size:clamp(22px,3vw,32px);line-height:1.4;color:#0d2438}
.about-copy p{margin:0 0 14px;color:#3d576b;font-size:15.5px}
.about-copy .btn{margin-top:8px}
.about-card{background:#fff;border:1px solid #e2eefb;border-radius:22px;padding:26px;box-shadow:0 20px 44px rgba(15,60,120,.08)}
.about-card h3{margin:0 0 16px;font-size:16.5px;color:#0b4ecb}
.ability-list{list-style:none;margin:0;padding:0;display:grid;gap:13px}
.ability-list li{display:grid;gap:2px;padding-left:17px;position:relative}
.ability-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,#1a6dff,#00c9a7)}
.ability-list b{font-size:14.8px;color:#12293c}
.ability-list span{font-size:13.5px;color:#5a7183}

/* 服务卡片 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc-card{background:#fff;border:1px solid #e2eefb;border-radius:20px;padding:24px;box-shadow:0 10px 24px rgba(15,60,120,.05);display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s}
.svc-card:hover{transform:translateY(-5px);box-shadow:0 22px 40px rgba(15,60,120,.13);border-color:#c8dfff}
.svc-icon{width:44px;height:44px;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#e8f2ff,#e2fff8);color:#0b4ecb;margin-bottom:14px}
.svc-icon svg{width:22px;height:22px}
.svc-card h3{margin:0 0 8px;font-size:17px;color:#0d2438}
.svc-card p{margin:0 0 14px;font-size:14.5px;color:#4a6274;flex:1}
.svc-tags{display:flex;flex-wrap:wrap;gap:7px}
.svc-tags span{font-size:12.5px;color:#0b6f5f;background:#e6fbf6;border:1px solid #c6f2e8;border-radius:999px;padding:2px 10px}

/* 一站式制作 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:960px;margin:0 auto}
.tag-cloud span{font-size:14px;color:#1b4a7a;background:#fff;border:1px solid #dbe9fb;border-radius:999px;padding:8px 16px;transition:transform .2s,box-shadow .2s,background .2s}
.tag-cloud span:hover{transform:translateY(-3px);background:#eef7ff;box-shadow:0 10px 20px rgba(15,60,120,.1)}
.shot-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:34px}
.shot{margin:0;background:#fff;border:1px solid #e2eefb;border-radius:18px;overflow:hidden;box-shadow:0 12px 28px rgba(15,60,120,.07)}
.shot img{display:block;width:100%;height:auto}
.shot figcaption{padding:12px 16px;font-size:14px;color:#4a6274;border-top:1px solid #eef5fd}

/* 行业方案 */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:32px}
.sol-item{position:relative;overflow:hidden;background:#fff;border:1px solid #e2eefb;border-radius:18px;padding:24px 22px;transition:transform .25s,box-shadow .25s}
.sol-item::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,#1a6dff,#00c9a7)}
.sol-item:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(15,60,120,.12)}
.sol-item h3{margin:0 0 8px;font-size:16.5px;color:#0d2438}
.sol-item p{margin:0;font-size:14.5px;color:#4a6274}
.network{display:flex;flex-wrap:wrap;align-items:center;gap:14px 24px;background:linear-gradient(120deg,#eaf5ff,#e7fff8);border:1px solid #d6e9fb;border-radius:20px;padding:24px}
.network h3{margin:0;flex:0 0 auto;font-size:16.5px;color:#0b4ecb}
.network-tags{display:flex;flex-wrap:wrap;gap:10px}
.network-tags span{background:#fff;border:1px solid #dbe9fb;border-radius:999px;padding:6px 14px;font-size:13.5px;color:#2b465c}

/* 标准流程 */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.step{background:#fff;border:1px solid #e2eefb;border-radius:18px;padding:22px 18px;transition:transform .25s,box-shadow .25s}
.step:hover{transform:translateY(-4px);box-shadow:0 18px 32px rgba(15,60,120,.11)}
.step-num{display:inline-flex;width:30px;height:30px;border-radius:9px;align-items:center;justify-content:center;font-size:14px;font-weight:800;color:#fff;background:linear-gradient(135deg,#1a6dff,#00c9a7);margin-bottom:12px}
.step h3{margin:0 0 6px;font-size:15.5px;color:#0d2438}
.step p{margin:0;font-size:13.8px;color:#4a6274}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{background:#fff;border:1px solid #e2eefb;border-radius:20px;overflow:hidden;box-shadow:0 12px 26px rgba(15,60,120,.06);transition:transform .25s,box-shadow .25s}
.case-card:hover{transform:translateY(-5px);box-shadow:0 22px 40px rgba(15,60,120,.14)}
.case-card img{display:block;width:100%;height:auto}
.case-body{padding:18px 20px 22px}
.case-body h3{margin:0 0 8px;font-size:16.5px;color:#0d2438}
.case-body p{margin:0;font-size:14.5px;color:#4a6274}

/* 对比评测 */
.review-top{display:grid;grid-template-columns:.72fr 1.28fr;gap:22px;align-items:stretch;margin-bottom:28px}
.score-card{background:linear-gradient(150deg,#0b4ecb,#1a6dff 55%,#00c9a7 130%);border-radius:22px;padding:30px 24px;color:#fff;text-align:center;box-shadow:0 22px 44px rgba(11,78,203,.28)}
.score-label{margin:0 0 8px;font-size:13.5px;letter-spacing:1px;color:#d5e6ff}
.score-num{margin:0;font-size:50px;line-height:1;font-weight:800;color:#fff}
.score-num span{font-size:18px;font-weight:600;color:#c9e3ff}
.score-stars{margin:12px 0 4px;font-size:19px;letter-spacing:4px;color:#ffd76a}
.score-note{margin:0;font-size:14px;color:#e8f3ff}
.review-points{list-style:none;margin:0;padding:24px;background:#fff;border:1px solid #e2eefb;border-radius:22px;display:grid;gap:11px;box-shadow:0 14px 30px rgba(15,60,120,.06)}
.review-points li{position:relative;padding-left:22px;font-size:14.5px;color:#2b465c}
.review-points li::before{content:"";position:absolute;left:0;top:7px;width:9px;height:9px;border-radius:3px;background:linear-gradient(135deg,#1a6dff,#00c9a7)}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid #e2eefb;border-radius:20px;box-shadow:0 14px 30px rgba(15,60,120,.06)}
table{width:100%;border-collapse:collapse;min-width:680px}
thead th{background:#eef6ff;color:#0b4ecb;font-size:14.5px;text-align:left;padding:14px 18px;white-space:nowrap}
tbody td{padding:13px 18px;font-size:14.3px;color:#2b465c;border-top:1px solid #eef5fd;vertical-align:top}
tbody td:first-child{font-weight:700;color:#0d2438;white-space:nowrap}
tbody tr:hover{background:#f7fbff}

/* Token 比价 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{background:#fff;border:1px solid #e2eefb;border-radius:20px;padding:24px;box-shadow:0 12px 26px rgba(15,60,120,.06);transition:transform .25s,box-shadow .25s}
.price-card:hover{transform:translateY(-4px);box-shadow:0 20px 36px rgba(15,60,120,.12)}
.price-card h3{margin:0 0 8px;font-size:16.5px;color:#0d2438}
.price-card p{margin:0;font-size:14.5px;color:#4a6274}
.price-note{margin:22px 0 0;text-align:center;font-size:13.5px;color:#6a8296}

/* 用户评论 */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote-card{background:#fff;border:1px solid #e2eefb;border-radius:20px;padding:24px;box-shadow:0 12px 26px rgba(15,60,120,.06);display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.quote-card:hover{transform:translateY(-4px);box-shadow:0 20px 36px rgba(15,60,120,.12)}
.quote-stars{color:#ffab2e;letter-spacing:3px;font-size:14px;margin-bottom:10px}
.quote-text{margin:0 0 18px;font-size:14.5px;color:#334c60;flex:1}
.quote-user{display:flex;align-items:center;gap:11px}
.avatar{width:38px;height:38px;border-radius:50%;flex:0 0 auto;background:linear-gradient(135deg,#cfe4ff,#d6fff4);border:1px solid #dbe9fb}
.quote-user strong{display:block;font-size:14.5px;color:#0d2438}
.quote-user .role{display:block;font-size:12.8px;color:#6a8296}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid #e2eefb;border-radius:14px;padding:0 20px;box-shadow:0 8px 20px rgba(15,60,120,.04);transition:border-color .25s,box-shadow .25s}
.faq-item[open]{border-color:#bcd8ff;box-shadow:0 14px 30px rgba(15,60,120,.09)}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 34px 16px 0;font-size:15.5px;font-weight:700;color:#12293c;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:20px;font-weight:400;color:#1a6dff;transition:transform .25s}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item p{margin:0 0 16px;font-size:14.5px;color:#4a6274}

/* 文章 */
.article-block{max-width:900px;margin:40px auto 0}
.article-block h3{margin:0 0 14px;font-size:17px;color:#0d2438;text-align:center}
.article-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.article-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;border:1px solid #e2eefb;border-radius:12px;padding:13px 18px;font-size:14.5px;color:#2b465c;text-decoration:none;transition:transform .2s,border-color .2s,color .2s}
.article-list a:hover{transform:translateX(4px);border-color:#bcd8ff;color:#0b4ecb}
.article-list a::after{content:"→";color:#1a6dff}

/* 加盟代理 */
.partner-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.partner-copy h2{margin:0 0 14px;font-size:clamp(22px,3vw,32px);line-height:1.4;color:#0d2438}
.partner-copy p{margin:0 0 14px;font-size:15.5px;color:#3d576b}
.partner-list{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:10px}
.partner-list li{position:relative;padding-left:20px;font-size:14.8px;color:#2b465c}
.partner-list li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#1a6dff,#00c9a7)}
.partner-media img{display:block;width:100%;height:auto;border-radius:22px;border:1px solid #e2eefb;box-shadow:0 22px 44px rgba(15,60,120,.12)}

/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start}
.contact-form{background:#fff;border:1px solid #e2eefb;border-radius:22px;padding:28px;box-shadow:0 18px 38px rgba(15,60,120,.08);display:grid;gap:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:6px}
.field label{font-size:13.8px;font-weight:700;color:#2b465c}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid #d9e7f7;border-radius:11px;font-size:14.5px;color:#0d2438;background:#fafdff;font-family:inherit;transition:border-color .2s,box-shadow .2s,background .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#1a6dff;box-shadow:0 0 0 3px rgba(26,109,255,.14);background:#fff}
.field textarea{min-height:112px;resize:vertical}
.contact-info{background:#fff;border:1px solid #e2eefb;border-radius:22px;padding:26px;box-shadow:0 18px 38px rgba(15,60,120,.08)}
.contact-info h3{margin:0 0 16px;font-size:16.5px;color:#0b4ecb}
.info-list{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:10px;font-size:14.3px;color:#3d576b}
.info-list a{color:#0b4ecb;text-decoration:none}
.info-list a:hover{text-decoration:underline}
.kefu{text-align:center;border-top:1px dashed #dde9f7;padding-top:18px}
.kefu img{display:block;width:150px;max-width:100%;height:auto;margin:0 auto 10px;border-radius:12px;border:1px solid #e6f0fb}
.kefu p{margin:0;font-size:13.5px;color:#6a8296}

/* 页脚 */
.site-footer{background:linear-gradient(160deg,#0b1b2b 0%,#122c44 100%);color:#bfd6e8;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr 1fr;gap:36px;padding-bottom:30px}
.footer-brand .ai-page-logo{max-height:38px;margin-bottom:14px;background:#fff;padding:6px 10px;border-radius:10px}
.footer-brand p{margin:0 0 10px;font-size:14px;color:#a9c4d9}
.footer-brand a{color:#7fc4ff;text-decoration:none}
.footer-brand a:hover{color:#fff}
.site-footer h3{margin:0 0 14px;font-size:15px;color:#fff}
.footer-links ul,.footer-contact ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer-contact li{font-size:14px;color:#a9c4d9}
.site-footer a{color:#a9c4d9;text-decoration:none;font-size:14px;transition:color .2s}
.site-footer a:hover{color:#fff}
.footer-friend{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;padding:18px 0;border-top:1px solid rgba(255,255,255,.1);font-size:13.5px;color:#8fabc2}
.footer-friend a{font-size:13.5px}
.footer-bottom{margin:0;border-top:1px solid rgba(255,255,255,.1);padding-top:18px;text-align:center;font-size:13px;color:#87a3ba}

/* 浮动组件 */
.float-service{position:fixed;right:20px;bottom:84px;z-index:80}
.float-btn{width:56px;height:56px;border-radius:50%;border:none;background:linear-gradient(135deg,#1a6dff,#00c9a7);color:#fff;font-size:13px;font-weight:700;cursor:pointer;box-shadow:0 14px 28px rgba(26,109,255,.35);transition:transform .2s}
.float-btn:hover{transform:translateY(-3px) scale(1.04)}
.service-panel{position:absolute;right:0;bottom:68px;width:230px;background:#fff;border:1px solid #e2eefb;border-radius:16px;padding:16px;box-shadow:0 22px 44px rgba(15,60,120,.18);display:none;text-align:center}
.service-panel.open{display:block;animation:fadeUp .25s ease}
.service-panel img{display:block;width:100%;height:auto;border-radius:10px;margin-bottom:10px}
.service-panel p{margin:0 0 4px;font-size:13px;color:#3d576b}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.to-top{position:fixed;right:20px;bottom:20px;width:48px;height:48px;border-radius:50%;border:1px solid #d9e7f7;background:#fff;color:#0b4ecb;font-size:19px;cursor:pointer;box-shadow:0 12px 24px rgba(15,60,120,.15);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s,transform .2s;z-index:80}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px)}

/* 滚动渐入 */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-badge .dot{animation:none}
}

/* 响应式 */
@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid #e3eefb;box-shadow:0 18px 30px rgba(15,60,120,.12);padding:8px 16px 16px}
  .nav-links.open{display:flex}
  .nav-links li{width:100%}
  .nav-links a{padding:13px 10px;font-size:15.5px;border-radius:8px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .about-grid,.partner-grid,.contact-grid,.review-top{grid-template-columns:1fr}
  .card-grid,.sol-grid,.case-grid,.price-grid,.quote-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .section{padding:52px 0}
  .hero{padding:44px 0 40px}
  .metrics{grid-template-columns:repeat(2,1fr);margin-top:32px}
  .card-grid,.sol-grid,.case-grid,.price-grid,.quote-grid,.steps,.shot-grid,.form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .hero-actions .btn{flex:1 1 auto}
  .metric strong{font-size:22px}
  .network{padding:20px}
}

.reveal{opacity:1 !important;transform:none !important}