:root{
  --bg:#F3F8FB; --panel:#FFFFFF;
  --ink:#0A2A3F; --ink2:#123B57; --navy1:#05202F; --navy2:#0A3046;
  --teal:#0FAEA3; --teal2:#2ED0C1; --tealD:#0B877F; --tealSoft:#E0F6F2; --tealSoft2:#EAF9F6;
  --slate:#5B7285; --slate2:#8AA1B2;
  --line:#DCE8EF; --line2:#E7F0F5;
  --red:#E43838;
  --r-lg:22px; --r-md:16px;
  --shadow-sm:0 2px 12px rgba(10,42,63,.05);
  --shadow-md:0 18px 50px -18px rgba(10,42,63,.22);
  --shadow-lg:0 34px 80px -28px rgba(5,32,47,.35);
  --maxw:1200px;
  --ff:'Noto Sans SC','Source Han Sans CN','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{font-family:var(--ff);color:var(--ink);background:var(--bg);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;background:none;cursor:pointer}
.icon{width:24px;height:24px;flex:none}
.icon.sm{width:18px;height:18px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;position:relative;z-index:2}

/* ---------- shared type ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:.32em;color:var(--tealD);text-transform:uppercase}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,transparent,var(--teal))}
.eyebrow.center::after{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--teal),transparent)}
.sec{padding:104px 0}
.sec-head{max-width:820px;margin:0 auto 62px;text-align:center}
.sec-head h2{font-size:clamp(30px,4.2vw,46px);font-weight:900;line-height:1.25;letter-spacing:.01em;margin:18px 0 18px;color:var(--ink)}
.sec-head h2 em{font-style:normal;background:linear-gradient(100deg,var(--tealD),var(--teal2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.sec-head p{color:var(--slate);font-size:17px;margin:0 auto}
.sec-lead{max-width:760px;margin:0 auto 58px;text-align:center}
.sec-lead p{color:var(--slate);font-size:18px;line-height:2}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:700;border-radius:999px;padding:15px 34px;font-size:15.5px;letter-spacing:.02em;transition:.28s cubic-bezier(.2,.7,.3,1);white-space:nowrap}
.btn-p{color:#fff;background:linear-gradient(120deg,var(--tealD),var(--teal) 55%,var(--teal2));box-shadow:0 14px 30px -10px rgba(15,174,163,.55)}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 20px 44px -12px rgba(15,174,163,.7);filter:brightness(1.04)}
.btn-ghost{color:var(--ink);background:rgba(255,255,255,.6);border:1px solid var(--line);backdrop-filter:blur(6px)}
.btn-ghost:hover{border-color:var(--teal);color:var(--tealD);transform:translateY(-2px)}
.btn-p .icon,.btn-ghost .icon{width:18px;height:18px}
.btn-w{background:#fff;color:var(--navy1)}
.btn-w:hover{transform:translateY(-2px);box-shadow:0 18px 40px -14px rgba(0,0,0,.45)}
.btn-o{background:transparent;color:#BFE9E4;border:1px solid rgba(46,208,193,.5)}
.btn-o:hover{background:rgba(46,208,193,.12);border-color:var(--teal2);transform:translateY(-2px)}

/* reveal —— 仅在启用 JS 时隐藏初始态（html.js 由 head 内一行脚本标记），无 JS 时内容默认可见，利于 SEO 与无障碍 */
html.js [data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.3,1)}
html.js [data-reveal].on{opacity:1;transform:none}
html.js [data-reveal="l"]{transform:translateX(-34px)}
html.js [data-reveal="r"]{transform:translateX(34px)}
html.js [data-reveal="l"].on,html.js [data-reveal="r"].on{transform:none}
html.js .d1{transition-delay:.08s}html.js .d2{transition-delay:.16s}html.js .d3{transition-delay:.24s}html.js .d4{transition-delay:.32s}

/* ============ NAV ============ */
.nav{position:fixed;inset:0 0 auto 0;z-index:60;transition:.35s}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between;height:84px;transition:.35s}
.nav.scrolled{background:rgba(255,255,255,.6);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:0 1px 0 var(--line),0 12px 34px -22px rgba(10,42,63,.28)}
.nav.scrolled .nav-inner{height:66px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:42px;height:42px;border-radius:10px}
.brand .brand-logo{height:34px;width:auto;max-height:36px;border-radius:0;object-fit:contain;display:block}
.brand-name{font-size:19px;font-weight:900;letter-spacing:.01em;color:var(--ink)}
.brand-name small{display:block;font-size:10.5px;font-weight:700;letter-spacing:.34em;color:var(--tealD);text-transform:uppercase;margin-top:1px}
.menu{display:flex;align-items:center;gap:34px;font-size:15px}
.menu a{color:var(--ink2);font-weight:500;position:relative;padding:6px 0}
.menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--tealD),var(--teal2));transition:width .3s}
.menu a:hover{color:var(--tealD)}
.menu a:hover::after{width:100%}
.nav-cta{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(120deg,var(--tealD),var(--teal));color:#fff;font-weight:700;font-size:14.5px;padding:10px 22px;border-radius:999px;box-shadow:0 10px 22px -10px rgba(15,174,163,.6);transition:.25s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 14px 28px -10px rgba(15,174,163,.75)}
.burger{display:none;flex-direction:column;gap:5px;padding:6px}
.burger span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
body.nav-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .burger span:nth-child(2){opacity:0}
body.nav-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ HERO ============ */
.hero{position:relative;padding:196px 0 96px;background:
  radial-gradient(1000px 560px at 82% -12%,rgba(46,208,193,.16),transparent 62%),
  radial-gradient(900px 520px at -8% 18%,rgba(23,107,158,.14),transparent 60%),
  linear-gradient(180deg,#F7FBFD 0%,var(--bg) 82%);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(10,42,63,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(10,42,63,.045) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(1200px 760px at 55% 20%,#000 30%,transparent 78%);mask-image:radial-gradient(1200px 760px at 55% 20%,#000 30%,transparent 78%)}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:64px;align-items:center;position:relative}
.hero .badge{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.75);border:1px solid var(--line);backdrop-filter:blur(8px);padding:9px 18px;border-radius:999px;font-size:13px;color:var(--ink2);font-weight:500;box-shadow:var(--shadow-sm)}
.hero .badge i{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(15,174,163,.16);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px rgba(15,174,163,.16)}50%{box-shadow:0 0 0 7px rgba(15,174,163,.06)}}
.hero h1{font-size:clamp(40px,5.6vw,66px);font-weight:900;line-height:1.2;letter-spacing:.005em;margin:26px 0 6px;color:var(--ink)}
.hero h1 .grad{background:linear-gradient(105deg,var(--tealD) 8%,var(--teal2) 46%,#1F7FB6 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .en-sub{font-size:14px;font-weight:700;letter-spacing:.34em;color:var(--slate2);text-transform:uppercase;margin-top:14px}
.hero p.lead{color:var(--slate);font-size:clamp(15.5px,1.6vw,18px);max-width:560px;margin:22px 0 34px;line-height:2}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap}
.hero-metrics{display:flex;gap:0;margin-top:52px;border-top:1px solid var(--line);padding-top:30px}
.hm{flex:1;padding:0 26px;border-left:1px solid var(--line)}
.hm:first-child{padding-left:0;border-left:0}
.hm b{display:block;font-size:clamp(24px,2.4vw,32px);font-weight:900;color:var(--ink);line-height:1.2}
.hm b span{color:var(--tealD)}
.hm small{color:var(--slate2);font-size:13px;font-weight:500}
.hm i{font-style:normal;font-size:15px;color:var(--tealD);font-weight:700}

/* hero visual */
.hero-visual{position:relative}
.orbit{position:absolute;inset:6% -4%;pointer-events:none}
.orbit span{position:absolute;border-radius:50%}
.orbit .o1{inset:0;border:1px dashed rgba(15,174,163,.32);animation:spin 48s linear infinite}
.orbit .o2{inset:7% 6%;border:1px solid rgba(15,174,163,.16)}
.orbit .o3{inset:16% 14%;background:radial-gradient(circle at 35% 30%,rgba(46,208,193,.2),transparent 70%)}
@keyframes spin{to{transform:rotate(360deg)}}
.ai-card{position:relative;background:rgba(255,255,255,.92);border:1px solid rgba(220,232,239,.9);border-radius:26px;box-shadow:var(--shadow-lg);padding:30px 30px 26px;backdrop-filter:blur(10px);z-index:2}
.card-top{display:flex;align-items:center;gap:10px;padding-bottom:18px;border-bottom:1px solid var(--line2)}
.dots{display:flex;gap:6px}
.dots i{width:9px;height:9px;border-radius:50%;background:#D8E3EA}
.dots i:nth-child(1){background:#F4A6A6}.dots i:nth-child(2){background:#F5D38B}.dots i:nth-child(3){background:#9BDCC4}
.assist{display:flex;align-items:center;gap:8px;margin-left:6px;font-size:12.5px;color:var(--slate2);font-weight:600}
.assist svg{color:var(--tealD)}
.q{display:flex;gap:12px;margin:22px 0 8px}
.q .av{width:34px;height:34px;flex:none;border-radius:50%;background:linear-gradient(135deg,#123B57,#0FAEA3);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.q .bubble{background:#F0F6FA;border-radius:4px 18px 18px 18px;padding:10px 16px;font-size:14.5px;color:var(--ink2)}
.a{display:flex;gap:12px;margin:18px 0 6px}
.a .av{width:34px;height:34px;flex:none;border-radius:12px;background:linear-gradient(135deg,var(--tealD),var(--teal2));color:#fff;display:flex;align-items:center;justify-content:center}
.a .body{flex:1;min-width:0}
.a .row{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.a .nm{font-size:13.5px;font-weight:700;color:var(--ink)}
.a .src{font-size:11px;color:var(--slate2);background:#EEF4F8;border-radius:999px;padding:2px 10px}
.a .body p{font-size:14.5px;color:var(--ink2);line-height:1.85}
.hl{background:linear-gradient(90deg,rgba(46,208,193,.16),rgba(46,208,193,.02));border-left:3px solid var(--teal);border-radius:0 10px 10px 0;padding:10px 14px;margin:12px 0 0;font-size:14.5px;color:var(--ink)}
.hl b{color:var(--tealD)}
.refs{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.ref{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--slate);background:#F2F7FA;border:1px solid var(--line2);border-radius:999px;padding:5px 13px}
.ref svg{color:var(--tealD);width:13px;height:13px}
.chip{position:absolute;z-index:3;display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:16px;padding:12px 18px;box-shadow:var(--shadow-md);font-size:13.5px;font-weight:600;color:var(--ink2);animation:float 5.4s ease-in-out infinite}
.chip b{color:var(--tealD)}
.chip svg{color:var(--tealD)}
.chip .ic{width:34px;height:34px;border-radius:10px;background:var(--tealSoft);display:flex;align-items:center;justify-content:center;flex:none}
.chip1{top:-24px;left:-14px}
.chip2{bottom:34px;right:-22px;animation-delay:1.6s}
.chip3{top:34%;right:-40px;animation-delay:3s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.scroll-cue{position:absolute;left:50%;bottom:-64px;transform:translateX(-50%);color:var(--slate2);font-size:11.5px;letter-spacing:.3em;display:flex;flex-direction:column;align-items:center;gap:8px}
.scroll-cue i{width:1px;height:44px;background:linear-gradient(180deg,var(--teal),transparent);display:block;animation:cue 1.8s ease-in-out infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* marquee */
.ticker{background:var(--navy1);color:#CFE8E4;overflow:hidden;padding:17px 0;position:relative;z-index:2}
.ticker::before,.ticker::after{content:"";position:absolute;inset:0 auto 0 0;width:90px;z-index:2;background:linear-gradient(90deg,var(--navy1),transparent)}
.ticker::after{inset:0 0 0 auto;background:linear-gradient(270deg,var(--navy1),transparent)}
.track{display:flex;gap:54px;width:max-content;animation:scroll 30s linear infinite}
.track span{display:inline-flex;align-items:center;gap:14px;font-size:14px;letter-spacing:.06em;font-weight:500;white-space:nowrap;color:#B9D9D4}
.track span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--teal2);box-shadow:0 0 8px var(--teal2)}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ============ GEO METHOD (dark) ============ */
#geo{background:linear-gradient(170deg,var(--navy1) 0%,#082636 55%,var(--navy1) 100%);color:#fff;position:relative;overflow:hidden}
#geo::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(1100px 700px at 50% 30%,#000,transparent 75%);mask-image:radial-gradient(1100px 700px at 50% 30%,#000,transparent 75%)}
#geo::after{content:"";position:absolute;width:760px;height:760px;border-radius:50%;background:radial-gradient(circle,rgba(15,174,163,.16),transparent 68%);top:-220px;right:-220px;pointer-events:none}
#geo .sec-head h2{color:#fff}
#geo .sec-head p{color:#9DBBC7}
#geo .eyebrow{color:#4FD8CC}
.geo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;z-index:2}
.geo-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.11);border-radius:24px;padding:40px 32px;backdrop-filter:blur(8px);transition:.35s;position:relative;overflow:hidden}
.geo-card::before{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:linear-gradient(90deg,transparent,var(--teal2),transparent);opacity:0;transition:.35s}
.geo-card:hover{transform:translateY(-8px);background:rgba(255,255,255,.08);border-color:rgba(46,208,193,.4)}
.geo-card:hover::before{opacity:1}
.geo-char{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,rgba(46,208,193,.22),rgba(46,208,193,.05));border:1px solid rgba(46,208,193,.35);display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:900;color:#5BE0D3;margin-bottom:22px}
.geo-card h3{font-size:20px;font-weight:900;margin-bottom:4px}
.geo-card h3 span{color:#5BE0D3;font-weight:700;font-size:13px;letter-spacing:.2em;margin-right:10px}
.geo-card .en{font-size:12px;letter-spacing:.3em;color:#6F93A3;text-transform:uppercase;margin-bottom:14px;font-weight:700}
.geo-card p{color:#B5CCD6;font-size:15px;line-height:1.95}
.geo-meta{margin-top:52px;display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;position:relative;z-index:2}
.factor{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:12px 26px;font-size:15px;font-weight:600;color:#E6F2F5}
.factor svg{color:#4FD8CC}
.factor b{color:#5BE0D3}
.geo-goal{margin:58px auto 0;text-align:center;position:relative;z-index:2}
.geo-goal .frame{background:rgba(46,208,193,.08);border:1px dashed rgba(46,208,193,.4);border-radius:20px;padding:28px 40px}
.geo-goal p{font-size:clamp(17px,2vw,22px);font-weight:700;line-height:1.8}
.geo-goal p i{font-style:normal;color:#5BE0D3;background:linear-gradient(90deg,#4FD8CC,#9FF3E9);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ============ VALUE 4 ============ */
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.val{background:var(--panel);border:1px solid var(--line2);border-radius:var(--r-lg);padding:34px 28px;text-align:center;transition:.3s;box-shadow:var(--shadow-sm);position:relative}
.val:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.val .ic{width:64px;height:64px;margin:0 auto 20px;border-radius:20px;background:linear-gradient(150deg,var(--tealSoft),#F7FDFC);border:1px solid #CDEDE7;display:flex;align-items:center;justify-content:center;color:var(--tealD);transition:.3s}
.val:hover .ic{background:linear-gradient(135deg,var(--tealD),var(--teal2));color:#fff;border-color:transparent;box-shadow:0 14px 26px -10px rgba(15,174,163,.6)}
.val .step{position:absolute;top:18px;right:22px;font-size:12px;font-weight:900;color:var(--line);letter-spacing:.1em}
.val h3{font-size:19px;font-weight:900;margin-bottom:12px}
.val p{color:var(--slate);font-size:14px;line-height:1.9}

/* ============ SOLUTION (dark card steps) ============ */
#solution{background:linear-gradient(180deg,#EDF5F9,var(--bg))}
.sol-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:52px}
.sol-steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sol-step{position:relative}
.sol-card{background:#fff;border:1px solid var(--line2);border-radius:var(--r-lg);padding:30px 28px;box-shadow:var(--shadow-sm);height:100%;transition:.32s;display:flex;flex-direction:column;gap:14px;position:relative}
.sol-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(15,174,163,.45)}
.sol-num{display:flex;align-items:center;gap:14px}
.sol-num b{font-size:34px;font-weight:900;background:linear-gradient(135deg,#B9D5E0,#7FA3B5);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.sol-num .ic{width:44px;height:44px;border-radius:13px;background:var(--tealSoft);color:var(--tealD);display:flex;align-items:center;justify-content:center}
.sol-card h3{font-size:18.5px;font-weight:900;color:var(--ink);line-height:1.4}
.sol-card p{color:var(--slate);font-size:14px;line-height:1.9}
.sol-card .chip-tag{font-size:11.5px;color:var(--slate2);border:1px solid var(--line);align-self:flex-start;border-radius:999px;padding:3px 12px;letter-spacing:.05em;margin-top:auto}
.sol-note{margin-top:46px;background:linear-gradient(120deg,#0C3349,var(--navy1));border-radius:var(--r-lg);padding:26px 38px;color:#CFE6E2;display:flex;align-items:center;gap:20px;box-shadow:var(--shadow-lg)}
.sol-note .ic{width:46px;height:46px;flex:none;border-radius:14px;background:rgba(46,208,193,.16);color:#5BE0D3;display:flex;align-items:center;justify-content:center;border:1px solid rgba(46,208,193,.3)}
.sol-note p{font-size:16px;font-weight:600}
.sol-note b{color:#7CE8DC}

/* ============ CAPABILITY ============ */
#capability{background:var(--bg);position:relative;overflow:hidden}
.cap-head{max-width:100%;margin:0 0 46px;text-align:left}
.cap-eyebrow{display:inline-block;font-size:13.5px;font-weight:800;letter-spacing:.22em;color:var(--teal);text-transform:uppercase;margin-bottom:14px;text-align:left}
.cap-head h2{display:flex;align-items:center;justify-content:flex-start;flex-wrap:nowrap;white-space:nowrap;gap:20px;font-size:clamp(20px,2.7vw,36px);font-weight:900;color:var(--ink);letter-spacing:.02em;margin:0 0 16px;text-align:left}
.cap-title-main{display:inline-flex;align-items:center;flex-shrink:0;white-space:nowrap}
.cap-head .slash{color:var(--teal2);font-style:normal;font-weight:800;margin-left:2px}
.cap-head .cap-sub-title{display:inline-flex;align-items:center;gap:8px;font-size:clamp(18px,2.3vw,30px);font-weight:800;color:var(--ink2);white-space:nowrap;flex-shrink:0}
.cap-head .times{color:var(--teal);font-weight:700;font-size:0.9em;margin:0 4px}
.cap-desc{color:var(--slate);font-size:16.5px;line-height:1.95;max-width:920px;margin:0 0 0 0!important;text-align:left!important}
.cap-quote{color:var(--teal);font-weight:700;font-size:1.15em;vertical-align:baseline;margin:0 1px}
.cap-tag{display:inline-block;padding:2px 10px;margin:0 2px;background:linear-gradient(135deg,var(--tealD),var(--teal));color:#fff;border-radius:6px;font-size:14px;font-weight:700;letter-spacing:.03em;box-shadow:0 3px 10px rgba(15,174,163,.28);vertical-align:baseline}

/* 3 Cards Grid */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative;z-index:2}
.cap-card{background:linear-gradient(180deg,#062234 0%,#031724 100%);border:1px solid rgba(46,208,193,.2);border-radius:24px;padding:44px 28px 46px;text-align:center;position:relative;overflow:hidden;box-shadow:0 20px 50px -15px rgba(5,32,47,.38);display:flex;flex-direction:column;align-items:center;transition:transform .35s cubic-bezier(.2,.7,.3,1),border-color .35s ease,box-shadow .35s ease}
.cap-card::before{content:"";position:absolute;top:-80px;left:50%;transform:translateX(-50%);width:220px;height:160px;background:radial-gradient(circle,rgba(46,208,193,.16) 0%,transparent 70%);border-radius:50%;pointer-events:none}
.cap-card:hover{transform:translateY(-6px);border-color:rgba(46,208,193,.5);box-shadow:0 28px 65px -14px rgba(15,174,163,.28)}

/* Card Icons */
.cap-icon-box{width:70px;height:70px;margin:0 auto 22px;display:flex;align-items:center;justify-content:center;border-radius:20px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);box-shadow:inset 0 1px 1px rgba(255,255,255,.1);position:relative;z-index:1}
.cap-icon-svg{width:42px;height:42px;display:block}
.cap-icon-bolt{filter:drop-shadow(0 4px 12px rgba(250,84,28,.35))}
.cap-icon-globe{filter:drop-shadow(0 4px 12px rgba(46,208,193,.35))}
.cap-icon-doc{filter:drop-shadow(0 4px 12px rgba(142,164,194,.3))}

/* Card Titles */
.cap-card-title{margin-bottom:26px;position:relative;z-index:1}
.cap-card-title h3{font-size:23px;font-weight:900;color:var(--teal2);line-height:1.25;letter-spacing:.02em}
.cap-card-title .sub{display:block;font-size:20px;font-weight:800;color:var(--teal2);margin-top:4px;letter-spacing:.02em}

/* Card Content List */
.cap-card-content{display:flex;flex-direction:column;gap:14px;width:100%;position:relative;z-index:1}
.cap-item{font-size:14.5px;color:#D2E6EE;line-height:1.75}
.cap-dim{color:#8AA7B8;font-size:13.5px}
.cap-subdesc{font-size:13px;color:#85A3B3;line-height:1.6;max-width:92%;margin:-6px auto 0}
.cap-teal{color:var(--teal2);font-weight:700}
.cap-stat{font-size:19px;font-weight:800;color:var(--teal2);padding:2px 0}
.cap-stat b{font-size:26px;font-weight:900;letter-spacing:-.01em}
.cap-stat-white{color:#FFFFFF}
.cap-stat-white b{color:#FFFFFF}

/* Bottom Bar */
.cap-bottom-bar{margin-top:54px;padding-top:28px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);position:relative;z-index:2}
.cap-bottom-left{font-size:14px;font-weight:700;color:var(--tealD);letter-spacing:.04em}
.cap-brand-center{display:inline-flex;align-items:center;gap:12px}
.cap-brand-center img{width:40px;height:40px;border-radius:10px;box-shadow:0 3px 10px rgba(228,56,56,.25)}
.cap-brand-info{display:flex;flex-direction:column;text-align:left}
.cap-brand-info .name{font-size:19px;font-weight:900;color:var(--ink);line-height:1.1;letter-spacing:.05em}
.cap-brand-info .slogan{font-size:11px;color:var(--slate);letter-spacing:.18em;font-weight:500;margin-top:2px}
.cap-bottom-right{font-size:12px;font-weight:800;color:var(--slate2);letter-spacing:.12em;display:flex;align-items:center;gap:8px}
.cap-bottom-right .num{font-size:14px;color:var(--tealD)}

/* ============ CLIENTS ============ */
#clients{background:linear-gradient(180deg,var(--bg),#EDF5F9);overflow:hidden}
.client-frame{position:relative;border-radius:26px;overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--line);background:#fff}
.client-frame img{width:100%;height:auto}

/* ============ ROADMAP ============ */
#path{background:var(--navy1);color:#fff;position:relative;overflow:hidden}
#path::before{content:"";position:absolute;width:900px;height:900px;border-radius:50%;background:radial-gradient(circle,rgba(15,174,163,.12),transparent 65%);top:-300px;left:-220px}
#path::after{content:"";position:absolute;width:760px;height:760px;border-radius:50%;background:radial-gradient(circle,rgba(15,174,163,.1),transparent 66%);bottom:-320px;right:-180px;pointer-events:none}
#path .eyebrow{color:#4FD8CC}
#path .sec-head h2{color:#fff}
#path .sec-head p{color:#9DBBC7}
.road{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.road::before{content:"";position:absolute;left:calc(100%/6);right:calc(100%/6);top:15px;height:2px;background:repeating-linear-gradient(90deg,rgba(46,208,193,.45) 0 7px,transparent 7px 13px);pointer-events:none}
.road .col{position:relative;padding:0 22px;display:flex;flex-direction:column;align-items:center;text-align:center}
.road .dot{position:relative;z-index:1;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--tealD),var(--teal2));display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:900;color:#fff;box-shadow:0 0 0 7px rgba(46,208,193,.14),0 10px 22px -8px rgba(15,174,163,.8);margin-bottom:26px}
.road h3{font-size:20px;font-weight:900;margin-bottom:4px}
.road .days{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;color:#5BE0D3;background:rgba(46,208,193,.14);border-radius:999px;padding:3px 12px;margin-bottom:16px}
.road ul{list-style:none;display:inline-block;text-align:left;margin:14px auto 0}
.road li{position:relative;padding:8px 0 8px 24px;color:#C4D8E0;font-size:14.5px;line-height:1.8}
.road li::before{content:"";position:absolute;left:0;top:16px;width:9px;height:9px;border-radius:3px;background:rgba(46,208,193,.55);transform:rotate(45deg)}
.deliver{margin-top:56px;position:relative;z-index:2;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.13);border-radius:20px;padding:24px 34px;display:flex;align-items:center;gap:26px;flex-wrap:wrap;justify-content:center}
.deliver .lab{font-size:13px;letter-spacing:.2em;color:#6F93A3;font-weight:700;display:flex;align-items:center;gap:10px}
.deliver .lab svg{color:#4FD8CC}
.deliver .items{display:flex;gap:12px;flex-wrap:wrap}
.deliver .it{display:inline-flex;align-items:center;gap:8px;background:rgba(46,208,193,.12);border:1px solid rgba(46,208,193,.32);color:#D9F3EF;border-radius:999px;padding:9px 20px;font-size:14px;font-weight:600}
.deliver .it svg{color:#4FD8CC;width:15px;height:15px}

/* ============ FLOW ============ */
.flow-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:34px;align-items:stretch}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.fs{background:#fff;border:1px solid var(--line2);border-radius:var(--r-md);padding:18px 14px;text-align:center;transition:.28s;box-shadow:var(--shadow-sm);position:relative}
.fs:hover{transform:translateY(-4px);border-color:rgba(15,174,163,.5);box-shadow:var(--shadow-md)}
.fs b{display:block;width:30px;height:30px;line-height:30px;margin:0 auto 10px;border-radius:9px;background:linear-gradient(135deg,var(--tealD),var(--teal2));color:#fff;font-size:13px;font-weight:900;box-shadow:0 8px 16px -6px rgba(15,174,163,.55)}
.fs h4{font-size:15px;font-weight:800;color:var(--ink);line-height:1.5}
.fs p{font-size:11.5px;color:var(--slate2);margin-top:6px;line-height:1.6}
.flow-result{background:linear-gradient(160deg,var(--navy1) 0%,#0A3550 60%,#0C4058 100%);border-radius:26px;padding:34px 32px;color:#fff;display:flex;flex-direction:column;justify-content:center;gap:16px;position:relative;overflow:hidden;box-shadow:var(--shadow-lg)}
.flow-result::after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(46,208,193,.22),transparent 70%);bottom:-120px;right:-80px}
.flow-result .tag{font-size:12px;letter-spacing:.26em;color:#5BE0D3;font-weight:800;text-transform:uppercase}
.flow-result h3{font-size:26px;font-weight:900;line-height:1.4}
.flow-result h3 span{color:#6FE4D8}
.flow-result ul{list-style:none;display:grid;gap:8px}
.flow-result li{display:flex;gap:10px;align-items:center;color:#C9DDE4;font-size:14px}
.flow-result li svg{color:#4FD8CC;flex:none}
.flow-pipe{display:flex;align-items:center;gap:10px;margin-top:8px}
.flow-pipe .pill{background:rgba(46,208,193,.14);border:1px solid rgba(46,208,193,.35);color:#BFEFE9;border-radius:999px;padding:7px 16px;font-size:13px;font-weight:700;white-space:nowrap}
.flow-pipe .arr{color:#5BE0D3;flex:none}
.flow-note{margin-top:26px;grid-column:1/-1;display:flex;align-items:center;gap:14px;justify-content:center;color:var(--slate);font-size:14.5px;background:#fff;border:1px dashed #B7D8D2;border-radius:var(--r-md);padding:16px 24px}
.flow-note svg{color:var(--tealD)}

/* ============ CTA ============ */
#contact{background:linear-gradient(150deg,var(--navy1) 0%,#06283C 55%,#0A3046 100%);color:#fff;position:relative;overflow:hidden}
#contact::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:54px 54px;-webkit-mask-image:radial-gradient(900px 500px at 50% 0%,#000,transparent 80%);mask-image:radial-gradient(900px 500px at 50% 0%,#000,transparent 80%)}
#contact::after{content:"";position:absolute;width:640px;height:640px;border-radius:50%;background:radial-gradient(circle,rgba(15,174,163,.18),transparent 66%);top:-160px;left:-160px}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center}
.cta-left .eyebrow{color:#4FD8CC}
.cta-left h2{font-size:clamp(28px,3.8vw,44px);font-weight:900;line-height:1.3;margin:18px 0 22px}
.cta-left h2 em{font-style:normal;background:linear-gradient(95deg,#57E0D2,#B8F6EE);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.cta-left p{color:#AECBD6;font-size:16px;max-width:480px;line-height:2}
.cta-points{margin-top:34px;display:grid;gap:14px}
.cta-points li{display:flex;gap:12px;align-items:center;color:#DCEFEA;font-size:15px}
.cta-points li span{width:26px;height:26px;flex:none;border-radius:50%;background:rgba(46,208,193,.16);border:1px solid rgba(46,208,193,.4);display:flex;align-items:center;justify-content:center;color:#5BE0D3}
.cta-points li svg{width:14px;height:14px}
.qr-panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(12px);border-radius:26px;padding:38px 24px;box-shadow:0 30px 70px -30px rgba(0,0,0,.55)}
.qr-panel h3{font-size:21px;font-weight:900;margin-bottom:6px}
.qr-panel .sub{color:#9DBBC7;font-size:13.5px;margin-bottom:26px}

/* ============ FOOTER ============ */
footer{background:#041926;color:#9DBBC7}
.ft-top{border-bottom:1px solid rgba(255,255,255,.08);padding:64px 0 48px}
.ft-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr 1.5fr;gap:40px}
.ft-brand img{width:46px;height:46px;border-radius:11px;margin-bottom:18px}
.ft-brand img.ft-logo{width:auto;height:38px;max-height:42px;border-radius:0;object-fit:contain;display:block;margin-bottom:16px}
.ft-brand .bn{font-size:20px;font-weight:900;color:#fff;letter-spacing:.01em}
.ft-brand .bn small{display:block;font-size:11px;letter-spacing:.3em;color:#4FD8CC;font-weight:800;margin-top:3px;text-transform:uppercase}
.ft-brand p{font-size:14px;line-height:2;margin-top:16px;max-width:300px}
.ft-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:20px}
.ft-col a{display:block;font-size:14px;padding:7px 0;color:#9DBBC7;transition:.2s}
.ft-col a:hover{color:#5BE0D3;transform:translateX(3px)}
.ft-col .dim{font-size:12.5px;color:#6E93A1;display:block;padding:7px 0;line-height:1.7;white-space:nowrap}
.ft-col .dim a{display:inline;padding:0;color:#8FB7C3;text-decoration:none;white-space:nowrap;transform:none}
.ft-col .dim a:hover{color:#5BE0D3;text-decoration:underline;transform:none}
.ft-bottom{padding:30px 0 34px;font-size:12.5px;color:#6E93A1;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.ft-bottom a{color:#8FB7C3;text-decoration:none;transition:color .2s}
.ft-bottom a:hover{color:#5BE0D3}
.ft-bottom-main{display:flex;flex-direction:column;gap:8px;line-height:1.75}
.ft-row{display:flex;flex-wrap:wrap;align-items:center;gap:3px 8px}
.ft-sep{color:#ff5050;font-size:11px;user-select:none;opacity:.85;margin:0 2px}
.ft-beian{display:inline-flex;align-items:center;gap:5px}
.ft-beian img{width:16px;height:16px;display:inline-block;vertical-align:middle;flex-shrink:0}
.ft-bottom-badges{display:flex;align-items:center;gap:12px;flex-shrink:0}
.ft-badge-link{display:inline-block;transition:opacity .2s,transform .2s}
.ft-badge-link:hover{opacity:.85;transform:translateY(-2px)}
.ft-badge-link img.bottomimg{height:34px;width:auto;display:block}


/* ============ SVG ICON SIZING ============ */
svg.icon{width:24px;height:24px}
.btn svg,.nav-cta svg{width:18px;height:18px}
.assist svg{width:15px;height:15px;flex:none}
.a .av svg{width:20px;height:20px}
.ref svg{width:13px;height:13px;flex:none}
.chip .ic svg{width:20px;height:20px}

.scale .arrow svg,.flow-pipe .arr svg{width:26px;height:26px}
.geo-meta .factor svg{width:19px;height:19px}
.val .ic svg{width:30px;height:30px}
.sol-num .ic svg,.sol-note .ic svg,.deliver .lab svg{width:22px;height:22px}

.deliver .it svg{width:15px;height:15px}
.flow-note svg{width:20px;height:20px}
.flow-result li svg{width:17px;height:17px}
.shift-quote .mark svg{width:28px;height:28px}
.cta-points li svg{width:14px;height:14px}

/* responsive */
@media(max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:90px}
  .hero-visual{max-width:560px;margin:0 auto}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .geo-grid{grid-template-columns:1fr;max-width:640px;margin:0 auto}
  .sol-steps{grid-template-columns:1fr;max-width:640px;margin:0 auto}
  .road{grid-template-columns:1fr;gap:30px;max-width:620px;margin:0 auto}
  .road::before{display:none}
  .road .col{padding:0 10px}
  .flow-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:44px}
  .ft-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .sec{padding:76px 0}
  .menu{position:fixed;inset:0;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);flex-direction:column;justify-content:center;gap:26px;font-size:19px;opacity:0;visibility:hidden;transition:.3s;z-index:5}
  body.nav-open .menu{opacity:1;visibility:visible}
  .nav-inner{position:relative;z-index:6}
  .menu a{font-size:19px;font-weight:700}
  .nav-cta{display:none}
  .burger{display:flex}
  .hero{padding-top:150px}
  .hero-metrics{flex-wrap:wrap;gap:16px 0}
  .hm{flex:1 1 40%;border-left:0;padding:0 14px 0 0}
  .chip1{left:-6px;top:-18px}
  .chip2{right:-8px}
  .chip3{display:none}
  .value-grid,.flow-steps{grid-template-columns:1fr 1fr}
  .flow-steps{gap:12px}
  .sol-note{flex-direction:column;align-items:flex-start}
  .shift-quote{padding:30px 26px}

  .ft-grid{grid-template-columns:1fr;gap:34px}
  .flow-result{order:-1}
}

/* a11y: skip link */
.skip-link{position:fixed;top:-120px;left:24px;z-index:200;background:#fff;color:var(--ink);padding:12px 22px;border-radius:12px;box-shadow:var(--shadow-md);font-weight:700;font-size:14px;transition:top .2s ease}
.skip-link:focus{top:18px}

/* ============ QR CODE ============ */
.qr-panel{text-align:center;padding:44px 24px}
.qr-panel h3{text-align:center}
.qr-panel .sub{text-align:center;margin-bottom:6px}
.qr-box{width:184px;height:184px;margin:26px auto 20px;border-radius:18px;background:#fff;border:1px solid rgba(95,224,211,.35);display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:0 10px 30px rgba(5,32,47,.08)}
.qr-box img{width:100%;height:100%;object-fit:contain;display:block}
.qr-box svg{width:86px;height:86px}
.qr-hint{font-size:12.5px;color:#8FB7C3;text-align:center;line-height:1.9;margin:0 auto;max-width:none;white-space:nowrap}
.qr-hint a{color:#5FE0D3;text-decoration:none;white-space:nowrap;word-break:keep-all;display:inline-block}
.qr-hint a:hover{text-decoration:underline}


/* ================================================================
   MOBILE REFINEMENTS（追加层，覆盖上文规则，勿移动其顺序）
   ================================================================ */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{-webkit-tap-highlight-color:transparent}
a,button,[role="button"]{touch-action:manipulation}
:focus-visible{outline:2px solid var(--tealD);outline-offset:2px}

/* ---------- 平板/窄桌面 ---------- */
@media(max-width:900px){
  .sec{padding:84px 0}
  .sec-head{margin-bottom:46px}
  .sec-head h2{font-size:clamp(28px,4vw,38px)}
}

/* ---------- 手机 ---------- */
@media(max-width:760px){
  html{scroll-padding-top:70px}
  .wrap{padding:0 20px}

  /* 导航 */
  .nav-inner{height:64px;padding:0 16px}
  .nav.scrolled .nav-inner{height:60px}
  .brand img{width:38px;height:38px;border-radius:9px}
  .brand .brand-logo{height:28px;max-height:30px;width:auto;border-radius:0}
  .brand-name{font-size:17px}
  .burger{width:44px;height:44px;align-items:center;justify-content:center;padding:0;margin-left:2px;flex:none}
  .burger span{width:22px;height:2px}
  body.nav-open{overflow:hidden}
  .menu{gap:0}
  .menu a{display:block;padding:13px 4px;font-size:19px;font-weight:800;letter-spacing:.02em}
  .menu a::after{display:none}

  /* Hero */
  .hero{padding:132px 0 74px}
  .hero-grid{gap:58px}
  .hero .badge{font-size:12px;padding:7px 14px;gap:8px}
  .hero h1{font-size:clamp(34px,10.5vw,46px);margin:20px 0 4px;line-height:1.22}
  .hero .en-sub{font-size:11px;letter-spacing:.24em}
  .hero p.lead{font-size:15px;margin:16px 0 26px;line-height:1.95}
  .hero-ctas{flex-direction:column;gap:12px}
  .hero-ctas .btn{width:100%;padding:15px 20px}
  .hero-metrics{margin-top:34px;padding-top:22px;gap:16px 0}
  .hm{flex:1 1 44%;padding:0 12px 0 0}
  .hm b{font-size:24px}
  .hm small{font-size:12px}
  .hero-visual{margin-top:6px}
  .ai-card{padding:22px 18px 20px}
  .chip{font-size:12px;padding:9px 12px;border-radius:13px;gap:8px}
  .chip .ic{width:28px;height:28px;border-radius:8px}
  .chip .ic svg{width:17px;height:17px}
  .chip1{left:-4px;top:-16px}
  .chip2{right:-4px;bottom:22px}
  .chip3{display:none}
  .scroll-cue{display:none}

  /* 通用区块 */
  .sec{padding:64px 0}
  .sec-head{margin-bottom:38px}
  .sec-head h2{font-size:26px;line-height:1.36;margin:14px 0}
  .sec-head p{font-size:15px;line-height:1.95}

  /* GEO 方法论 */
  .geo-card{padding:28px 22px}
  .geo-card h3{font-size:18px}
  .geo-card p{font-size:14px;line-height:1.9}
  .geo-char{width:56px;height:56px;font-size:26px;margin-bottom:18px}
  .geo-meta{margin-top:34px;gap:10px}
  .factor{padding:9px 16px;font-size:13.5px;border-radius:999px}
  .geo-meta span:last-child{flex:1 1 100%;text-align:center;margin-top:4px;font-size:13px!important}
  .geo-goal{margin-top:40px}
  .geo-goal .frame{padding:22px 18px}

  /* 知识资产四可 */
  .value-grid{gap:12px}
  .val{padding:26px 18px 24px}
  .val .ic{width:56px;height:56px;border-radius:17px;margin:0 auto 16px}
  .val h3{font-size:17px}
  .val p{font-size:13.5px;line-height:1.85}
  .val .step{font-size:11px;top:14px;right:16px}

  /* 解决方案 */
  .sol-steps{gap:14px}
  .sol-card{padding:24px 20px;gap:12px}
  .sol-num b{font-size:28px}
  .sol-card h3{font-size:17px}
  .sol-card p{font-size:13.5px;line-height:1.85}
  .sol-card .chip-tag{font-size:11px}
  .sol-note{padding:20px 20px;gap:14px}
  .sol-note .ic{width:42px;height:42px}
  .sol-note p{font-size:14.5px;line-height:1.8}

  /* 90 天路径（堆叠版：整组居中，列表内部左对齐） */
  .road{gap:28px}
  .road .col{padding:0}
  .road h3{font-size:18px}
  .road .days{font-size:11.5px;padding:3px 10px}
  .road ul{margin-top:10px}
  .road li{font-size:14px}
  .road .dot{width:34px;height:34px;font-size:12px;margin-bottom:20px}
  .deliver{padding:20px 16px;gap:16px;flex-direction:column;text-align:center}
  .deliver .lab{justify-content:center}
  .deliver .items{justify-content:center}

  /* 合作流程 */
  .flow-steps{gap:10px}
  .fs{padding:14px 8px 12px}
  .fs b{width:28px;height:28px;line-height:28px;margin-bottom:8px}
  .fs h4{font-size:13.5px}
  .fs p{font-size:11px;margin-top:4px}
  .flow-result{padding:28px 22px;gap:14px}
  .flow-result h3{font-size:22px}
  .flow-result li{font-size:13.5px}
  .flow-pipe{gap:8px}
  .flow-pipe .pill{padding:6px 12px;font-size:12.5px}
  .flow-note{margin-top:18px;padding:14px 16px;font-size:13px;line-height:1.8;text-align:center}

  /* 能力背书 */
  .cap-head h2{flex-direction:column;gap:4px}
  .cap-head .cap-sub-title{font-size:20px}
  .cap-desc{font-size:14.5px;text-align:left!important;margin:0!important}
  .cap-grid{grid-template-columns:1fr;max-width:520px;margin-left:auto;margin-right:auto;gap:20px}
  .cap-card{padding:34px 22px 36px}
  .cap-bottom-bar{flex-direction:column;gap:18px;text-align:center}
  .cap-brand-info{text-align:center}

  /* 客户 Logo 墙 */
  .client-frame{border-radius:18px}

  /* CTA / 二维码 */
  .cta-grid{gap:34px}
  .cta-left h2{font-size:26px;margin:14px 0 16px}
  .cta-left p{font-size:15px;line-height:1.95}
  .cta-points{margin-top:26px;gap:12px}
  .cta-points li{font-size:14px;line-height:1.7}
  .qr-panel{padding:32px 22px}
  .qr-panel h3{font-size:19px}
  .qr-panel .sub{font-size:13px}
  .qr-box{width:170px;height:170px;margin:22px auto 16px}

  /* 页脚 */
  .ft-top{padding:48px 0 36px}
  .ft-grid{gap:32px}
  .ft-bottom{flex-direction:column;text-align:center;align-items:center;gap:18px;padding-bottom:calc(24px + env(safe-area-inset-bottom))}
  .ft-row{justify-content:center}
  .ft-bottom-badges{justify-content:center;margin-top:4px}
}

/* ---------- 小屏手机 ---------- */
@media(max-width:480px){
  .wrap{padding:0 16px}
  .hero{padding:118px 0 62px}
  .hero-grid{gap:48px}
  .hero h1{font-size:32px}
  .hero p.lead{font-size:14.5px}
  .hm b{font-size:22px}
  .value-grid{grid-template-columns:1fr}
  .value-grid .val p{max-width:340px;margin:0 auto}
  .geo-grid,.sol-steps{max-width:100%}
  .cta-grid{gap:28px}
  .ft-grid{gap:28px}
  .qr-hint,.ft-col .dim{white-space:normal}
}

/* ---------- 短屏（横屏手机）首屏不顶格 ---------- */
@media(max-height:560px) and (max-width:760px){
  .hero{padding-top:96px}
}

/* ---------- 系统减弱动态偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* ============ NAV LOGIN ACTIONS ============ */
.nav-actions{display:inline-flex;align-items:center;gap:12px}
.nav-login-btn{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.85);border:1px solid var(--line);color:var(--ink);font-weight:600;font-size:14px;padding:8px 18px;border-radius:999px;text-decoration:none;transition:all .25s ease;backdrop-filter:blur(8px)}
.nav-login-btn:hover{background:#fff;border-color:var(--teal);color:var(--tealD);transform:translateY(-1px);box-shadow:0 4px 12px -2px rgba(15,174,163,.2)}
.mobile-login-link{display:none}
@media (max-width:760px){
  .nav-login-btn{display:none}
  .mobile-login-link{display:block;color:var(--tealD)!important;font-weight:700}
}