:root{
  --ink:#081B31; --ink-2:#0C2542; --ink-3:#10304F;
  --orange:#FF7A00; --orange-2:#FFB300; --orange-deep:#FF4D00;
  --cyan:#13B6CF; --cyan-2:#0098C4;
  --green:#22B553;
  --text:#1E2A39; --muted:#66768A; --muted-2:#93A2B4;
  --bg:#FFFFFF; --soft:#F5F8FB; --soft-2:#EEF4F9;
  --border:#E6EDF4;
  --shadow:0 18px 50px -20px rgba(13,40,72,.18);
  --shadow-sm:0 8px 24px -12px rgba(13,40,72,.16);
  --radius:18px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{width:min(1200px,92%);margin:0 auto}
section{position:relative}

/* 通用按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:999px;font-size:15px;font-weight:700;cursor:pointer;transition:.3s;white-space:nowrap;border:1px solid transparent}
.btn-primary{background:linear-gradient(135deg,var(--orange-deep),var(--orange) 55%,var(--orange-2));color:#fff;box-shadow:0 10px 26px -8px rgba(255,122,0,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -8px rgba(255,122,0,.65)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.28);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--cyan-2);border-color:#BFE3EF}
.btn-outline:hover{border-color:var(--cyan);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.btn-sm{padding:9px 20px;font-size:14px}

/* ========= 导航 ========= */
header.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:.35s;padding:18px 0}
.nav-toggle{display:none}
.m-login{display:none}
.m-panel-bar{display:none}
header.nav .container{display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;transition:.3s}
.brand img{height:38px;width:auto;filter:brightness(0) invert(1)}
.nav-menu{display:flex;gap:6px;margin-left:6px}
.nav-menu>li{position:relative}
.nav-menu>li>a{display:flex;align-items:center;gap:5px;padding:9px 14px;font-size:15px;font-weight:500;color:rgba(255,255,255,.86);border-radius:10px;transition:.25s}
.nav-menu>li>a .caret{font-size:10px;opacity:.7}
.nav-menu>li:hover>a{color:#fff;background:rgba(255,255,255,.1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.login-link{color:rgba(255,255,255,.9);font-size:15px;font-weight:500}
.login-link:hover{color:#fff}
/* 下拉 */
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:230px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:10px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s}
.nav-menu>li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:9px;font-size:14.5px;color:var(--text)}
.dropdown a .mi{width:18px;height:18px;flex:none;color:var(--cyan-2)}
.dropdown a .dcol{display:flex;flex-direction:column}
.dropdown a small{display:block;color:var(--muted);font-size:12px;line-height:1.5}
.dropdown a:hover{background:var(--soft);color:var(--cyan-2)}
.dropdown a:hover .mi{color:var(--orange)}
.dropdown.wide{min-width:540px;padding:16px}
.dropdown.wide .grid{display:grid;grid-template-columns:1fr 1fr;gap:2px}
.dropdown.wide a{padding:8px 12px;font-size:14px;gap:9px}
.dropdown.wide a .mi{width:16px;height:16px}
.dropdown .divider{height:1px;background:var(--border);margin:6px 8px}
/* 滚动后导航 */
header.nav.scrolled{background:rgba(255,255,255,.9);backdrop-filter:blur(14px);padding:11px 0;box-shadow:0 6px 24px -14px rgba(10,30,54,.3)}
header.nav.scrolled .brand img{filter:none}
header.nav.scrolled .nav-menu>li>a{color:#3E4D5F}
header.nav.scrolled .nav-menu>li:hover>a{background:var(--soft);color:var(--cyan-2)}
header.nav.scrolled .login-link{color:var(--ink-2)}

/* ========= Hero ========= */
.hero{background:var(--ink);padding:168px 0 110px;overflow:hidden;color:#fff}
.hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:54px 54px;mask-image:radial-gradient(ellipse 90% 80% at 50% 30%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 90% 80% at 50% 30%,#000 30%,transparent 75%)}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;pointer-events:none}
.blob.b1{width:520px;height:520px;background:radial-gradient(circle,rgba(255,122,0,.55),transparent 65%);top:-160px;right:-80px;animation:drift 14s ease-in-out infinite}
.blob.b2{width:480px;height:480px;background:radial-gradient(circle,rgba(19,182,207,.4),transparent 65%);bottom:-200px;left:-120px;animation:drift 18s ease-in-out infinite reverse}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,30px) scale(1.12)}}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;position:relative;z-index:2}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(19,182,207,.14);border:1px solid rgba(19,182,207,.35);color:#7FE0EE;padding:7px 16px;border-radius:999px;font-size:13.5px;font-weight:500;margin-bottom:24px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(19,182,207,.2);animation:pulse 2s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 7px rgba(19,182,207,0)}}
.hero h1{font-size:56px;font-weight:900;line-height:1.18;letter-spacing:1px;margin-bottom:22px}
.hero h1 .grad{background:linear-gradient(100deg,var(--orange),var(--orange-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:17.5px;color:rgba(220,232,244,.86);max-width:560px;margin-bottom:38px;font-weight:300}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:42px}
.hero-trust{display:flex;gap:26px;flex-wrap:wrap;color:rgba(200,215,230,.8);font-size:14px}
.hero-trust span{display:flex;align-items:center;gap:8px;white-space:nowrap}
.hero-trust i{width:18px;height:18px;color:var(--orange-2)}
/* Hero 右侧 AI 答案卡 */
.ai-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:20px;backdrop-filter:blur(16px);padding:24px;box-shadow:0 40px 80px -30px rgba(0,0,0,.7);animation:float 7s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
.ai-card .q{display:flex;gap:12px;align-items:flex-start;margin-bottom:20px}
.ai-card .q .av{width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.ai-card .q p{font-size:14.5px;color:#DCE7F2}
.ai-card .ans{background:rgba(255,255,255,.92);color:var(--text);border-radius:14px;padding:18px;font-size:13.8px}
.ai-card .ans .head{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--cyan-2);margin-bottom:10px;font-size:13px}
.ai-card .ans .head .spin{width:16px;height:16px}
.ai-card .ans ul li{display:flex;gap:8px;padding:5px 0;color:#3A4858}
.ai-card .ans ul li .ck{color:var(--green);font-weight:900}
.ai-card .ans .hl{color:var(--orange-deep);font-weight:700}
.ai-card .cursor{display:inline-block;width:8px;height:16px;background:var(--cyan-2);vertical-align:-2px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.ai-card .chips{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.ai-card .chips span{font-size:11.5px;background:rgba(19,182,207,.16);color:#8FE2EE;padding:4px 11px;border-radius:99px}

/* ========= 数据条 ========= */
.stats{background:var(--ink-2);padding:46px 0;border-top:1px solid rgba(255,255,255,.07)}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{text-align:center;color:#fff}
.stat .num{font-size:42px;font-weight:900;background:linear-gradient(120deg,var(--orange),var(--orange-2));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.stat .num.suffix{font-size:34px}
.stat .lab{color:rgba(205,221,236,.75);font-size:14px;margin-top:4px}

/* ========= 通用区块标题 ========= */
.sec-head{text-align:center;max-width:720px;margin:0 auto 56px}
.sec-head .tag{display:inline-block;color:var(--cyan-2);font-weight:700;font-size:14px;letter-spacing:2px;margin-bottom:14px}
.sec-head h2{font-size:36px;font-weight:900;color:var(--ink);line-height:1.3}
.sec-head p{color:var(--muted);font-size:16px;margin-top:14px}
.pad{padding:96px 0}
.bg-soft{background:var(--soft)}

/* 痛点 */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.pain-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:34px 30px;transition:.35s;position:relative;overflow:hidden}
.pain-card::after{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--orange),var(--cyan));transform:scaleX(0);transform-origin:left;transition:.4s}
.pain-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.pain-card:hover::after{transform:scaleX(1)}
.pain-card .ico{width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,#FFF1E3,#E2F6FA);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.pain-card .ico svg{width:28px;height:28px}
.pain-card h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:12px}
.pain-card p{color:var(--muted);font-size:14.5px}

/* 什么是 GEO */
.geo-wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.geo-wrap h2{font-size:34px;font-weight:900;color:var(--ink);line-height:1.3;margin-bottom:20px}
.geo-wrap .txt p{color:var(--muted);font-size:15.5px;margin-bottom:16px}
.chain{display:flex;align-items:center;gap:8px;margin:28px 0;flex-wrap:wrap}
.chain .node{background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 16px;font-size:14px;font-weight:700;color:var(--cyan-2);box-shadow:var(--shadow-sm)}
.chain .arrow{color:var(--orange);font-size:18px}
.feats3{display:grid;gap:14px}
.feats3 li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:12px;padding:15px 18px}
.feats3 li b{color:var(--ink);font-size:15px}
.feats3 li span{color:var(--muted);font-size:13.5px}
.feats3 .fi{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--orange),var(--orange-2));display:flex;align-items:center;justify-content:center;flex-shrink:0}
.feats3 .fi svg{width:17px;height:17px;stroke:#fff}
.quote-line{margin-top:26px;font-size:19px;font-weight:900;color:var(--ink)}
.quote-line em{font-style:normal;color:var(--orange-deep)}
/* GEO 右侧手机外框截图 */
.geo-shot{position:relative;max-width:380px;margin:0 auto}
.geo-shot .frame{background:linear-gradient(160deg,#DFF3F8,#FFEFDD);border-radius:40px;padding:18px;position:relative;z-index:2;box-shadow:0 40px 80px -30px rgba(13,40,72,.4)}
.geo-shot .frame img{border-radius:26px;display:block;width:100%}
.geo-shot .deco{position:absolute;border-radius:50%;filter:blur(60px);z-index:1}
.geo-shot .deco.d1{width:200px;height:200px;background:rgba(19,182,207,.4);top:-40px;right:-40px}
.geo-shot .deco.d2{width:220px;height:220px;background:rgba(255,122,0,.3);bottom:-50px;left:-50px}

/* 产品双入口 */
.prod-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.prod-card{border-radius:22px;padding:42px 38px;position:relative;overflow:hidden;transition:.4s;border:1px solid var(--border);background:#fff}
.prod-card:hover{transform:translateY(-10px);box-shadow:var(--shadow)}
.prod-card .pico{width:66px;height:66px;border-radius:18px;display:flex;align-items:center;justify-content:center;margin-bottom:24px}
.prod-card.saas .pico{background:linear-gradient(135deg,#E2F6FA,#D2F0F7)}
.prod-card.managed .pico{background:linear-gradient(135deg,#FFF1E3,#FFE6CC)}
.prod-card .pico svg{width:34px;height:34px}
.prod-card h3{font-size:24px;font-weight:900;color:var(--ink);margin-bottom:8px}
.prod-card .desc{color:var(--muted);font-size:14.5px;margin-bottom:20px}
.prod-card .plist{display:grid;gap:9px;margin-bottom:26px}
.prod-card .plist li{display:flex;gap:9px;font-size:14px;color:#3C4B5C;align-items:center}
.prod-card .plist .ck{color:var(--green);font-weight:900}
.prod-card .price{font-size:15px;color:var(--muted);margin-bottom:22px}
.prod-card .price b{font-size:26px;color:var(--orange-deep);font-weight:900}
.prod-card .card-cta{display:flex;align-items:center;gap:14px}
.prod-card.saas .go{background:linear-gradient(135deg,var(--cyan-2),var(--cyan));color:#fff}
.prod-card.managed .go{background:linear-gradient(135deg,var(--orange-deep),var(--orange));color:#fff}
.prod-card .go{padding:12px 26px;border-radius:999px;font-weight:700;font-size:14.5px;transition:.3s}
.prod-card .go:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}

/* 平台覆盖 */
.platforms{display:flex;justify-content:center;align-items:center;gap:38px;flex-wrap:wrap}
.platforms .pf{display:flex;align-items:center}
.platforms .pf img{height:32px;width:auto;filter:grayscale(.7);opacity:.7;transition:.3s}
.platforms .pf:hover img{filter:none;opacity:1;transform:translateY(-3px)}
.platform-note{text-align:center;color:var(--muted);font-size:14px;margin-top:34px}

/* 优势（水晶图标） */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:34px 26px;transition:.35s;text-align:center}
.adv-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:#D7E7F0}
.adv-card .aico{width:76px;height:76px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.adv-card .aico img{width:100%;height:100%;object-fit:contain}
.adv-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px}
.adv-card p{font-size:13.8px;color:var(--muted)}

/* 成效（深色） */
.perf{background:linear-gradient(160deg,var(--ink),var(--ink-2));color:#fff;padding:96px 0}
.perf .sec-head h2{color:#fff}
.perf .sec-head p{color:rgba(200,216,232,.75)}
.perf .sec-head .tag{color:var(--orange-2)}
.perf-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.perf-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:30px 24px;text-align:center;transition:.3s}
.perf-item:hover{background:rgba(255,255,255,.09);transform:translateY(-6px)}
.perf-item .n{font-size:38px;font-weight:900;color:var(--orange-2)}
.perf-item .l{font-size:14px;color:rgba(205,221,236,.8);margin-top:6px}
.perf-note{text-align:center;color:rgba(190,208,226,.7);font-size:14.5px;margin-top:40px}

/* 案例精选 */
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.case-card{display:block;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.35s}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.case-card .top{padding:26px 28px 0;display:flex;justify-content:space-between;align-items:center}
.case-card .badge{font-size:12px;background:var(--soft-2);color:var(--cyan-2);padding:4px 12px;border-radius:99px;font-weight:600}
.case-card .pfname{font-size:12.5px;color:var(--muted-2)}
.case-card .body{padding:20px 28px 30px}
.case-card .kw{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:16px}
.case-card .change{display:flex;align-items:center;gap:12px;font-size:14px}
.case-card .before{color:var(--muted)}
.case-card .after{color:var(--green);font-weight:900}
.case-card .change .ar{color:var(--orange);font-weight:900}
.case-card .more{display:inline-block;margin-top:16px;color:var(--cyan-2);font-size:13.5px;font-weight:600}
/* 截图型案例卡片 */
.case-card.shot .top{padding:16px 16px 0;justify-content:flex-start;gap:6px;flex-wrap:wrap}
.case-card.shot .top .badge{font-size:11px;padding:3px 10px}
.case-card.shot .brand-tag{font-size:11px;color:#A85B17;background:#FDEEE0;border-radius:99px;padding:3px 10px;font-weight:600}
.case-card.shot .shot-wrap{padding:14px 14px 20px;display:flex;justify-content:center}
.case-card.shot .shot-wrap img{width:283px;max-width:80%;height:auto;border-radius:14px;border:1px solid #E9EEF3;
  box-shadow:0 16px 32px -18px rgba(8,27,49,.45)}
/* 案例目录页：截图再缩小 */
.case-grid.shot-grid{gap:16px}
.case-grid.shot-grid .shot-wrap{padding:12px 12px 18px}
.case-grid.shot-grid .shot-wrap img{max-width:64%;border-radius:12px}
.case-cta{text-align:center;margin-top:50px}

/* 资源 */
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.res-card{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.35s}
.res-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.res-card .cover{height:168px;display:flex;align-items:center;justify-content:center}
.res-card .cover img{height:118px;width:auto}
.res-card .rc-body{padding:24px 26px 28px}
.res-card .rc-body h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:9px;line-height:1.45}
.res-card .rc-body p{font-size:13.5px;color:var(--muted)}

/* 底部 CTA */
.final{background:radial-gradient(at 40% 10%,#0f766e 0,transparent 55%),radial-gradient(at 15% 55%,#475569 0,transparent 55%),radial-gradient(at 70% 80%,#1d4ed8 0,transparent 55%),#141b26;padding:96px 0;color:#fff;text-align:center;overflow:hidden}
.final h2{font-size:38px;font-weight:900;margin-bottom:16px}
.final p{color:rgba(205,221,236,.82);font-size:16.5px;margin-bottom:38px}
.final .cta-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* 页脚 */
footer{background:#061424;color:#B9C9DA;padding:70px 0 0}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:54px}
.f-brand{display:flex;align-items:center;margin-bottom:18px}
.f-brand img{height:34px;width:auto;filter:brightness(0) invert(1)}
.f-about{font-size:13.5px;color:#8AA0B5;max-width:320px;margin-bottom:18px}
.f-quals{display:flex;gap:20px;flex-wrap:wrap}
.f-quals .qf{display:flex;flex-direction:column;align-items:center;gap:7px;text-align:center}
.f-quals .qf img{width:42px;height:42px;opacity:.5}
.f-quals .qf small{font-size:11px;color:#93A8BC;line-height:1.3;max-width:72px}
.f-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
.f-col a{display:block;font-size:13.8px;color:#93A8BC;padding:5px 0;transition:.2s}
.f-col a:hover{color:var(--orange-2)}
.f-contact li{font-size:13.8px;color:#93A8BC;padding:6px 0;display:flex;gap:9px;align-items:center}
.f-contact .tel{display:flex;align-items:center;gap:10px;margin-bottom:4px}
.f-contact .tel svg{width:20px;height:20px;stroke:#93A8BC;flex-shrink:0}
.f-contact .telnum{font-size:23px;font-weight:900;background:linear-gradient(90deg,var(--orange),var(--orange-2) 45%,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:.5px}
.qrrow{display:flex;align-items:center;gap:14px;margin-top:14px}
.qrrow img{width:96px;height:96px;background:#fff;border-radius:10px;padding:6px}
.qrrow .qrtext{font-size:12.5px;color:#93A8BC;line-height:1.6}
.f-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#76899C}
.f-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.f-bottom .links a:hover{color:#fff}

/* 悬浮条 */
.mobile-bar{display:none}
.float-bar{position:fixed;right:22px;bottom:40px;z-index:90;display:flex;flex-direction:column;gap:10px}
.float-bar .fb{width:50px;height:50px;border-radius:13px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;transition:.3s;padding:0}
.float-bar .fb:hover{transform:translateY(-3px)}
.float-bar .fb.cs{background:linear-gradient(135deg,var(--orange-deep),var(--orange));border-color:transparent}
.float-bar .fb.cs svg{width:25px;height:25px}
.float-bar .fb.iconbtn img{width:42px;height:42px}
.float-bar .fb .pop{position:absolute;right:60px;top:50%;transform:translateY(-50%);background:#fff;border:1px solid var(--border);border-radius:16px;padding:16px;box-shadow:var(--shadow);display:none;width:184px;text-align:center;flex-shrink:0}
.float-bar .fb .pop.show{display:block}
.pop .pt-title{font-size:16px;font-weight:900;color:var(--ink);margin-bottom:2px}
.pop .pt-num{font-size:21px;font-weight:900;background:linear-gradient(90deg,var(--orange),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;margin:6px 0}
.pop .pt-sub{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.5}
.float-bar .fb .pop img.qrbig{width:148px;height:148px;margin:6px auto 0}
/* 独立回到顶部按钮 */
#toTop{position:fixed;right:22px;bottom:220px;z-index:90;width:50px;height:50px;border-radius:13px;background:#fff;
  border:1px solid var(--border);box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;visibility:hidden;transition:.3s;color:#66768A}
#toTop svg{width:23px;height:23px}
#toTop:hover{transform:translateY(-3px)}
#toTop.show{opacity:1;visibility:visible}

/* 滚动渐入 */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}

@media (max-width:980px){
  .hero{padding:140px 0 70px}
  .hero .container{grid-template-columns:1fr;gap:50px}
  .hero h1{font-size:40px}
  .nav-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;background:none;border:none;padding:0 8px;order:3}
  .nav-toggle span{display:block;height:2.5px;width:22px;border-radius:2px;transition:.32s;margin-left:auto;background:#fff}
  header.nav.scrolled .nav-toggle span,header.nav.prelight .nav-toggle span{background:var(--ink)}
  header.nav.open .nav-toggle span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  header.nav.open .nav-toggle span:nth-child(2){opacity:0}
  header.nav.open .nav-toggle span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  /* 浮动导航层 */
  .nav-menu{display:none;position:fixed;top:64px;left:12px;right:12px;max-height:calc(100vh - 84px);
    background:#fff;flex-direction:column;gap:2px;padding:8px 10px 14px;overflow-y:auto;margin:0;
    border-radius:18px;box-shadow:0 26px 60px -12px rgba(8,27,49,.34),0 6px 18px rgba(8,27,49,.14);
    border:1px solid #EDF1F5;z-index:120}
  header.nav.open .nav-menu{display:flex}
  .m-panel-bar{display:flex;align-items:center;justify-content:space-between;padding:6px 8px 10px;border-bottom:1px solid #EDF1F5;margin-bottom:6px}
  .m-panel-title{font-size:14px;font-weight:800;color:var(--ink);letter-spacing:.5px}
  .m-close-btn{width:34px;height:34px;border-radius:10px;border:none;background:var(--soft);display:flex;align-items:center;justify-content:center;color:var(--muted);cursor:pointer}
  .m-close-btn svg{width:18px;height:18px}
  .m-close-btn:hover{background:#E7EEF5;color:var(--ink)}
  .m-login{display:none}
  .nav-menu>li>a{color:#33414F!important;width:100%;font-size:15px;font-weight:500;padding:12px 12px;border-radius:11px;border-bottom:none}
  .nav-menu>li>a .caret{margin-left:auto;transition:.3s}
  .nav-menu>li.m-expanded>a .caret{transform:rotate(180deg)}
  .nav-menu>li>a:hover,.nav-menu>li.m-expanded>a{background:var(--soft)}
  .nav-menu a.active{color:var(--orange-deep)!important;font-weight:700;background:linear-gradient(90deg,rgba(255,122,0,.14),rgba(255,122,0,.03))}
  .nav-menu .dropdown{position:static;transform:none;box-shadow:none;border:1px solid #EDF1F5;
    opacity:1;visibility:visible;background:var(--soft);border-radius:12px;padding:5px;margin:2px 4px 8px;width:auto;display:none}
  .nav-menu>li.m-expanded .dropdown{display:block}
  .nav-menu .dropdown.wide .grid{display:grid;grid-template-columns:1fr;gap:0}
  .nav-menu .dropdown a{color:#3E4D5F;font-size:13.5px;padding:10px 11px;border-radius:9px}
  .nav-menu .dropdown a:hover{background:#fff}
  .nav-menu .dropdown .mi{width:18px;height:18px}
  .nav-actions{gap:8px}
  .nav-actions .login-link{display:none}
  .nav-actions .btn-sm{padding:8px 16px;font-size:13px}
  .float-bar{display:none}
  body{padding-bottom:64px}
  .mobile-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:95;background:#fff;
    box-shadow:0 -6px 24px -14px rgba(8,27,49,.28);padding:6px 8px calc(6px + env(safe-area-inset-bottom));gap:4px}
  .mb-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;text-decoration:none;
    color:var(--muted);font-size:11.5px;padding:5px 2px;position:relative;cursor:pointer}
  .mb-item svg{width:23px;height:23px}
  .mobile-bar .pop{position:fixed;left:50%;top:50%;right:auto;bottom:auto;transform:translate(-50%,-50%);
    width:212px;display:none;background:#fff;border:1px solid var(--border);border-radius:16px;
    padding:18px;box-shadow:var(--shadow);text-align:center}
  .mobile-bar .pop.show{display:block}
  .stats .grid,.perf-grid,.adv-grid{grid-template-columns:repeat(2,1fr)}
  .pain-grid,.case-grid,.res-grid,.prod-grid,.geo-wrap{grid-template-columns:1fr}
  .sec-head h2,.geo-wrap h2,.final h2{font-size:28px}
  .f-grid{grid-template-columns:1fr;gap:0;padding-bottom:24px}
  footer{padding-top:0}
  .f-col{display:none}
  .f-brand,.f-about,.f-quals{margin-left:auto;margin-right:auto}
  .f-brand{justify-content:center;margin-top:32px}
  .f-about{text-align:center}
  .f-quals{justify-content:center;flex-wrap:nowrap;gap:14px}
  .f-quals .qf{flex:0 0 auto}
  .f-quals .qf img{width:38px;height:38px}
  .f-quals .qf small{white-space:nowrap;font-size:10.5px}
  .pad,.perf{padding:66px 0}
  .platforms{gap:22px}
  .platforms .pf img{height:26px}
  .blob,.geo-shot .deco{display:none}
}

/* ============ 手机端精细适配 (≤480px) ============ */
.m-only{display:none}
@media (max-width:480px){
  body{padding-bottom:60px}
  .hero{padding:116px 0 54px}
  .hero h1{font-size:31px;line-height:1.22}
  .hero p.lead{font-size:15px;margin-bottom:28px}
  .hero-cta{display:flex;flex-direction:column;gap:12px}
  .hero-cta .btn{width:100%;min-height:50px;display:flex;align-items:center;justify-content:center}
  .hero-cta .btn-primary{order:2;background:#fff;color:var(--ink);border:1.5px solid rgba(255,255,255,.55)}
  .hero-cta .btn-ghost{order:1;background:linear-gradient(135deg,var(--orange),var(--orange-deep));border:none;color:#fff}
  .pad,.perf{padding:54px 0}
  .sec-head{margin-bottom:38px}
  .sec-head h2,.geo-wrap h2,.final h2{font-size:23px;line-height:1.32}
  .sec-head p{font-size:13.5px}
  .perf-grid{gap:12px}
  .perf-item{min-width:0;padding:22px 12px}
  .perf-item .n{font-size:29px}
  .perf-item .l{font-size:12.5px}
  .case-grid{display:flex!important;overflow-x:auto;grid-template-columns:none;gap:12px;
    scroll-snap-type:x mandatory;padding-bottom:10px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .case-grid::-webkit-scrollbar{display:none}
  .case-card{flex:0 0 76%;scroll-snap-align:center;min-width:0;margin:0}
  .case-card.shot .shot-wrap img{max-width:72%}
  .case-cta{margin-top:34px}
  .cta-row{display:flex;flex-direction:column;gap:12px}
  .cta-row .btn{width:100%;min-height:50px;display:flex;align-items:center;justify-content:center}
  .cta-row .btn-primary{order:2;background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
  .cta-row .btn-ghost{order:1;background:linear-gradient(135deg,var(--orange),var(--orange-deep));border:none;color:#fff}
  .res-grid{display:flex!important;overflow-x:auto;grid-template-columns:none;gap:14px;
    scroll-snap-type:x mandatory;padding-bottom:10px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .res-grid::-webkit-scrollbar{display:none}
  .res-card{flex:0 0 74%;scroll-snap-align:center;min-width:0;margin:0}
  .res-card .cover{height:140px}
  #toTop{right:14px;bottom:76px;width:44px;height:44px;border-radius:12px;color:var(--cyan-2)}
  .m-only{display:block}
}
@media (hover:none){.case-card:hover{transform:none}}