:root{
  --ink:#151026;
  --ink-soft:#3d3653;
  --muted:#6b6484;
  --magenta:#ff2e7e;
  --violet:#7b3ff2;
  --cyan:#00b8f0;
  --orange:#ff8a1f;
  --green:#0fbf8b;
  --line:rgba(21,16,38,.1);
  --radius:20px;
  --shadow-soft:0 20px 44px -30px rgba(70,25,130,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.72;
  color:var(--ink);
  background-color:#ffffff;
  background-image:linear-gradient(180deg,#ffffff 0%,#fdf6ff 30%,#f3f7ff 66%,#ffffff 100%);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%}
a{color:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;font-size:15px;font-weight:700;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease}
.btn-primary{background:linear-gradient(120deg,#ff2e7e 0%,#b836ff 55%,#7b3ff2 100%);color:#ffffff;box-shadow:0 16px 30px -16px rgba(160,45,220,.85)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 36px -16px rgba(160,45,220,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#ffffff;color:var(--ink);border-color:rgba(21,16,38,.16)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--magenta);color:var(--magenta);box-shadow:0 16px 30px -22px rgba(255,46,126,.9)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-bar{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.ai-page-logo{display:block;width:auto;max-height:36px;object-fit:contain}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{display:block;padding:8px 11px;font-size:13.5px;font-weight:600;color:var(--ink-soft);text-decoration:none;border-radius:10px;white-space:nowrap;transition:color .2s ease,background-color .2s ease}
.nav-links a:hover{color:var(--magenta);background:rgba(255,46,126,.08)}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(21,16,38,.14);background:#ffffff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}

/* ===== 区块通用 ===== */
.section{padding:74px 0}
.section-alt{background:linear-gradient(180deg,rgba(252,245,255,0) 0%,rgba(252,245,255,.92) 10%,rgba(243,247,255,.92) 90%,rgba(243,247,255,0) 100%)}
.section-head{max-width:780px;margin:0 auto 42px;text-align:center}
.kicker{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--magenta);margin-bottom:12px}
.kicker::before,.kicker::after{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--magenta),var(--violet))}
.section-head h2{font-size:clamp(23px,3.1vw,33px);line-height:1.34;margin-bottom:12px}
.section-desc{color:var(--muted);font-size:15.5px;max-width:720px;margin:0 auto}

/* ===== 卡片 ===== */
.card{background:#ffffff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 2px 3px rgba(21,16,38,.02);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease}
.card:hover{transform:translateY(-5px);box-shadow:0 26px 44px -28px rgba(90,40,160,.55);border-color:rgba(123,63,242,.34)}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px;line-height:1.7}
.card-top{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.dot{width:34px;height:34px;flex-shrink:0;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;color:#ffffff;background:linear-gradient(135deg,var(--magenta),var(--violet))}
.dot.t2{background:linear-gradient(135deg,#00b8f0,#7b3ff2)}
.dot.t3{background:linear-gradient(135deg,#ff8a1f,#ff2e7e)}
.dot.t4{background:linear-gradient(135deg,#0fbf8b,#00b8f0)}
.tag-mini{display:inline-block;margin-top:14px;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:700;color:#8a2bd0;background:rgba(123,63,242,.1)}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:76px 0 68px}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(620px 320px at 10% 0%,rgba(255,46,126,.2),transparent 72%),
  radial-gradient(700px 360px at 92% 6%,rgba(0,184,240,.2),transparent 72%),
  radial-gradient(560px 300px at 55% 100%,rgba(123,63,242,.16),transparent 72%);
  pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(21,16,38,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(21,16,38,.05) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);-webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);opacity:.6;pointer-events:none}
.hero-deco{position:absolute;inset:0;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(2px);opacity:.5;animation:float 9s ease-in-out infinite}
.orb-a{width:130px;height:130px;left:4%;top:52%;background:linear-gradient(135deg,#ff2e7e,#ff8a1f)}
.orb-b{width:74px;height:74px;right:8%;top:14%;background:linear-gradient(135deg,#00b8f0,#7b3ff2);animation-delay:-3s}
.orb-c{width:52px;height:52px;right:22%;bottom:8%;background:linear-gradient(135deg,#0fbf8b,#00b8f0);animation-delay:-5s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.08em;color:#9a2fd0;background:rgba(123,63,242,.1);border:1px solid rgba(123,63,242,.2);padding:6px 14px;border-radius:999px;margin-bottom:20px}
.hero h1{font-size:clamp(30px,4.6vw,50px);line-height:1.2;margin-bottom:18px}
.hero-sub{color:var(--ink-soft);font-size:16px;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
.hero-tags li{font-size:13px;font-weight:600;color:var(--ink-soft);padding:6px 14px;border-radius:999px;background:#ffffff;border:1px solid rgba(21,16,38,.1);box-shadow:0 6px 14px -12px rgba(90,40,160,.8)}
.hero-panel{border:1px solid transparent;border-radius:26px;padding:24px;background:linear-gradient(#ffffff,#ffffff) padding-box,linear-gradient(135deg,rgba(255,46,126,.55),rgba(123,63,242,.5),rgba(0,184,240,.5)) border-box;box-shadow:var(--shadow-soft)}
.panel-title{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--muted);margin-bottom:16px}
.metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.metric{padding:14px 14px 15px;border-radius:15px;background:linear-gradient(160deg,#fff4f9 0%,#f2f4ff 100%);border:1px solid rgba(21,16,38,.06)}
.metric strong{display:block;font-size:24px;line-height:1.25;font-weight:800;color:#6f22c9}
.metric span{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
.panel-note{margin-top:16px;font-size:12.5px;line-height:1.6;color:var(--muted);border-top:1px dashed rgba(21,16,38,.12);padding-top:14px}

/* ===== 关于我们 ===== */
.about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}

/* ===== 服务卡片 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;justify-content:center}
.cloud li{font-size:13.5px;font-weight:600;color:var(--ink-soft);padding:8px 16px;border-radius:999px;background:#ffffff;border:1px solid rgba(21,16,38,.1);transition:color .2s ease,border-color .2s ease,transform .2s ease}
.cloud li:hover{color:var(--magenta);border-color:rgba(255,46,126,.45);transform:translateY(-2px)}

/* ===== 一站式制作 / 案例图 ===== */
.work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.work-card{margin:0;background:#ffffff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 3px rgba(21,16,38,.02);transition:transform .26s ease,box-shadow .26s ease}
.work-card:hover{transform:translateY(-5px);box-shadow:0 26px 44px -28px rgba(90,40,160,.55)}
.work-media{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(140deg,#ffe9f3,#e6eeff)}
.work-media img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.work-card:hover .work-media img{transform:scale(1.04)}
.work-card figcaption{padding:18px 20px 20px}
.work-card h3{font-size:16px;margin-bottom:6px}
.work-card p{font-size:14px;color:var(--muted)}

/* ===== 行业方案 ===== */
.sol-card{background:#ffffff;border:1px solid var(--line);border-radius:16px;padding:20px;border-left:4px solid transparent;transition:transform .24s ease,box-shadow .24s ease,border-left-color .24s ease}
.sol-card:nth-child(1){border-left-color:#ff2e7e}
.sol-card:nth-child(2){border-left-color:#7b3ff2}
.sol-card:nth-child(3){border-left-color:#00b8f0}
.sol-card:nth-child(4){border-left-color:#ff8a1f}
.sol-card:nth-child(5){border-left-color:#0fbf8b}
.sol-card:nth-child(6){border-left-color:#c026d3}
.sol-card:hover{transform:translateY(-4px);box-shadow:0 24px 40px -30px rgba(90,40,160,.6)}
.sol-card h3{font-size:16px;margin-bottom:6px}
.sol-card p{font-size:14px;color:var(--muted)}

/* ===== 服务网络 ===== */
.net-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.net-item{background:#ffffff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;display:flex;gap:12px;align-items:flex-start}
.net-item .dot{width:30px;height:30px;font-size:13px;border-radius:9px}
.net-item h3{font-size:15px;margin-bottom:3px}
.net-item p{font-size:13.5px;color:var(--muted)}

/* ===== 流程 ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:step}
.step{position:relative;background:#ffffff;border:1px solid var(--line);border-radius:18px;padding:22px 22px 22px 24px;transition:transform .24s ease,box-shadow .24s ease}
.step:hover{transform:translateY(-4px);box-shadow:0 24px 40px -30px rgba(90,40,160,.6)}
.step .num{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;font-size:14px;font-weight:800;color:#ffffff;background:linear-gradient(135deg,var(--magenta),var(--violet));margin-bottom:12px}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted)}

/* ===== 对比评测 ===== */
.review-layout{display:grid;grid-template-columns:300px 1fr;gap:26px;align-items:start}
.score-card{background:linear-gradient(150deg,#fff4fa 0%,#f1f3ff 100%);border:1px solid rgba(123,63,242,.24);border-radius:22px;padding:28px;text-align:center;box-shadow:var(--shadow-soft)}
.stars{font-size:22px;letter-spacing:4px;color:#ff8a1f;margin-bottom:10px}
.score{font-size:46px;font-weight:800;line-height:1.1;color:#6f22c9}
.score span{font-size:16px;color:var(--muted);font-weight:700;margin-left:4px}
.score-label{margin-top:10px;font-size:14px;color:var(--ink-soft);font-weight:700}
.score-note{margin-top:14px;font-size:13px;color:var(--muted);line-height:1.65}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:18px;background:#ffffff}
table{width:100%;border-collapse:collapse;min-width:680px}
caption{text-align:left;padding:16px 18px 0;font-size:13px;color:var(--muted);caption-side:top}
th,td{padding:14px 18px;text-align:left;font-size:14px;border-bottom:1px solid rgba(21,16,38,.07);vertical-align:top;color:var(--ink-soft)}
thead th{background:linear-gradient(120deg,rgba(255,46,126,.09),rgba(123,63,242,.09));color:var(--ink);font-weight:800;font-size:13.5px;white-space:nowrap}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:rgba(123,63,242,.045)}
td strong{color:#6f22c9}

/* ===== 需求表单 ===== */
.form-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:30px;align-items:start}
.form-side{background:linear-gradient(150deg,#fff2f9 0%,#eff4ff 100%);border:1px solid rgba(123,63,242,.2);border-radius:22px;padding:28px}
.form-side h3{font-size:19px;margin-bottom:10px}
.form-side p{font-size:14px;color:var(--ink-soft);margin-bottom:18px}
.side-list li{position:relative;padding-left:20px;font-size:14px;color:var(--ink-soft);margin-bottom:10px}
.side-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--magenta),var(--violet))}
.need-form{background:#ffffff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:0 2px 3px rgba(21,16,38,.02)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1 / -1}
.field label{font-size:13.5px;font-weight:700;color:var(--ink-soft)}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;font-size:14.5px;font-family:inherit;color:var(--ink);background:#fdfbff;border:1px solid rgba(21,16,38,.14);border-radius:12px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}
.field textarea{min-height:112px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--violet);background:#ffffff;box-shadow:0 0 0 4px rgba(123,63,242,.12)}
.form-tip{margin-top:14px;font-size:12.5px;color:var(--muted)}
.form-submit{margin-top:18px}

/* ===== 帮助中心 ===== */
.help-card{display:flex;flex-direction:column;gap:6px}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#ffffff;border:1px solid var(--line);border-radius:16px;padding:4px 20px;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:rgba(123,63,242,.4);box-shadow:0 20px 36px -30px rgba(90,40,160,.7)}
.faq-item summary{cursor:pointer;list-style:none;padding:16px 30px 16px 0;position:relative;font-size:15.5px;font-weight:700;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);width:24px;height:24px;line-height:22px;text-align:center;font-size:17px;font-weight:700;color:#8a2bd0;border-radius:50%;background:rgba(123,63,242,.1);transition:transform .2s ease}
.faq-item[open] summary::after{content:"–";transform:translateY(-50%) rotate(180deg)}
.faq-item .faq-body{padding:0 0 18px;font-size:14.5px;color:var(--muted);line-height:1.75}

/* ===== AI百科 ===== */
.wiki-box{background:#ffffff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:0 2px 3px rgba(21,16,38,.02)}

/* ===== 行业资讯 ===== */
.news-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:26px;align-items:start}
.news-dynamic{background:linear-gradient(150deg,#fff4fa,#eef4ff);border:1px dashed rgba(123,63,242,.35);border-radius:20px;padding:24px;font-size:14px;color:var(--ink-soft);line-height:1.8}
.news-list{display:flex;flex-direction:column;gap:10px}
.news-list a{display:block;padding:15px 18px;background:#ffffff;border:1px solid var(--line);border-radius:14px;font-size:14.5px;font-weight:600;color:var(--ink-soft);text-decoration:none;transition:transform .2s ease,color .2s ease,border-color .2ease}
.news-list a{transition:transform .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease}
.news-list a:hover{transform:translateX(4px);color:var(--magenta);border-color:rgba(255,46,126,.4);box-shadow:0 16px 28px -26px rgba(90,40,160,.8)}

/* ===== 加盟代理 ===== */
.partner{background:linear-gradient(125deg,#2a0f4d 0%,#5b18a8 48%,#b81f7a 100%);border-radius:26px;padding:44px 40px;color:#ffffff;display:grid;grid-template-columns:1.3fr .7fr;gap:32px;align-items:center;box-shadow:0 34px 60px -40px rgba(90,20,140,.95)}
.partner h2{color:#ffffff;font-size:clamp(22px,2.8vw,30px);margin-bottom:12px}
.partner p{color:rgba(255,255,255,.86);font-size:15px;margin-bottom:16px}
.partner-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.partner-list li{font-size:13px;font-weight:600;color:#ffffff;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);padding:6px 14px;border-radius:999px}
.partner-cta{text-align:center}
.partner-cta .btn{background:#ffffff;color:#5b18a8;box-shadow:0 18px 34px -18px rgba(0,0,0,.6)}
.partner-cta .btn:hover{transform:translateY(-2px);background:#fff6fb}
.partner-cta p{margin:14px 0 0;font-size:12.5px;color:rgba(255,255,255,.75)}

/* ===== 联系我们 ===== */
.contact-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:26px;align-items:start}
.contact-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-item{background:#ffffff;border:1px solid var(--line);border-radius:16px;padding:18px 20px}
.contact-item h3{font-size:13px;color:var(--muted);font-weight:700;letter-spacing:.06em;margin-bottom:6px}
.contact-item p{font-size:15px;color:var(--ink);font-weight:700;word-break:break-all}
.contact-item a{text-decoration:none;color:#6f22c9;font-weight:700}
.qr-card{background:#ffffff;border:1px solid var(--line);border-radius:20px;padding:22px;text-align:center}
.qr-media{width:180px;max-width:100%;margin:0 auto 12px;border-radius:16px;overflow:hidden;border:1px solid rgba(21,16,38,.1);background:#faf7ff}
.qr-media img{display:block;width:100%;height:auto}
.qr-card p{font-size:13.5px;color:var(--muted)}

/* ===== 页脚 ===== */
.site-footer{background:#14102a;color:#e9e6f5;padding:48px 0 26px;margin-top:20px}
.footer-top{display:grid;grid-template-columns:1fr 1fr;gap:32px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.14)}
.footer-brand{display:flex;flex-direction:column;gap:12px}
.footer-logo{display:block;max-height:34px;width:auto;filter:brightness(0) invert(1)}
.footer-brand p{font-size:13.5px;color:#b9b2d4;line-height:1.75;max-width:420px}
.footer-links h3{font-size:14px;color:#ffffff;margin-bottom:14px;font-weight:800}
.link-cloud{display:flex;flex-wrap:wrap;gap:8px}
.link-cloud a{display:inline-block;font-size:12.5px;color:#cfc8e8;text-decoration:none;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);transition:color .2s ease,background-color .2s ease,border-color .2s ease}
.link-cloud a:hover{color:#ffffff;background:rgba(255,46,126,.28);border-color:rgba(255,46,126,.5)}
.footer-bottom{padding-top:20px;text-align:center}
.footer-bottom p{font-size:12.5px;color:#a49dc0;line-height:1.9}
.footer-bottom a{color:#cfc8e8;text-decoration:none}
.footer-bottom a:hover{color:#ffffff}

/* ===== 浮动按钮 ===== */
.float-bar{position:fixed;right:18px;bottom:22px;z-index:90;display:flex;flex-direction:column;gap:10px}
.float-btn{width:46px;height:46px;border-radius:14px;border:1px solid rgba(21,16,38,.12);background:#ffffff;color:#6f22c9;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;text-decoration:none;cursor:pointer;box-shadow:0 14px 26px -16px rgba(90,40,160,.85);transition:transform .2s ease,background-color .2s ease,color .2s ease}
.float-btn:hover{transform:translateY(-3px);background:linear-gradient(135deg,var(--magenta),var(--violet));color:#ffffff}
.to-top{opacity:0;visibility:hidden;pointer-events:none}
.to-top.show{opacity:1;visibility:visible;pointer-events:auto}

/* ===== 动效 ===== */
.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .62s ease,transform .62s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  .orb{animation:none}
}

/* ===== 响应式 ===== */
@media (max-width:1120px){
  .nav-links{position:absolute;top:100%;left:-24px;right:-24px;flex-direction:column;align-items:stretch;background:#ffffff;padding:10px 24px 18px;border-bottom:1px solid var(--line);box-shadow:0 24px 34px -26px rgba(21,16,38,.5);display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 4px;font-size:14px;border-bottom:1px dashed rgba(21,16,38,.1);border-radius:0}
  .nav-toggle{display:flex}
}
@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero-sub{max-width:none}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .work-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .review-layout{grid-template-columns:1fr}
  .form-wrap{grid-template-columns:1fr}
  .news-wrap{grid-template-columns:1fr}
  .partner{grid-template-columns:1fr;padding:34px 26px}
  .contact-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
}
@media (max-width:680px){
  .section{padding:52px 0}
  .hero{padding:52px 0 46px}
  .grid-3,.grid-2,.work-grid,.steps,.form-grid,.contact-list{grid-template-columns:1fr}
  .brand-name{font-size:15px}
  .nav-right .btn-sm{padding:8px 14px;font-size:13px}
  .hero-actions .btn{width:100%}
  .card,.need-form,.form-side,.wiki-box{padding:20px}
  .float-bar{right:12px;bottom:16px}
}