/* ============================================================
   Pet Link 宠联联 — 智能宠物健康管理设备
   Light · clean · bright · medical-credible-but-warm
   Brand: blue #007AFF + lime #C8D74B on white
   ============================================================ */
:root{
  --blue:#007AFF;
  --blue-deep:#0A5FD0;
  --blue-soft:#E9F2FF;
  --blue-tint:#F4F8FE;
  --lime:#C8D74B;
  --lime-deep:#A9BD2A;
  --lime-soft:#F3F7DC;
  --ink:#262B38;
  --slate:#3C4250;
  --muted:#6A7180;
  --faint:#9AA1AE;
  --bg:#FFFFFF;
  --bg-2:#F4F8FE;
  --surface:#FFFFFF;
  --line:#E7ECF3;
  --line-2:#D8E0EC;
  --shadow:0 24px 60px -28px rgba(10,58,130,.22);
  --shadow-sm:0 10px 30px -16px rgba(10,58,130,.20);
  --r:18px; --r-lg:28px; --r-sm:12px;
  --f-display:"Plus Jakarta Sans","Noto Sans SC",sans-serif;
  --f-body:"Noto Sans SC","Plus Jakarta Sans",sans-serif;
  --maxw:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html,body{width:100%}
body{font-family:var(--f-body);background:var(--bg);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.sheet-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 34px}
.section{padding:104px 0;position:relative}
h1,h2,h3,h4{font-family:var(--f-display);font-weight:700;line-height:1.16;letter-spacing:-.02em;color:var(--ink)}
.lead{color:var(--muted);font-size:18.5px;line-height:1.7}
.eyebrow{font-family:var(--f-display);font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);display:inline-flex;align-items:center;gap:9px}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--lime-deep)}
.eyebrow.c{justify-content:center}

/* energy-field motif */
.energy{position:absolute;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,transparent 0 30%,rgba(0,122,255,.05) 31% 32%,transparent 33%),
  radial-gradient(circle,transparent 0 45%,rgba(0,122,255,.05) 46% 47%,transparent 48%),
  radial-gradient(circle,transparent 0 60%,rgba(0,122,255,.045) 61% 62%,transparent 63%),
  radial-gradient(circle,transparent 0 75%,rgba(0,122,255,.04) 76% 77%,transparent 78%),
  radial-gradient(circle,rgba(0,122,255,.06),transparent 60%);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--f-display);font-weight:600;font-size:15.5px;padding:14px 26px;border-radius:999px;cursor:pointer;border:1.5px solid transparent;transition:transform .2s cubic-bezier(.2,.8,.2,1),background .2s,border-color .2s,box-shadow .2s;white-space:nowrap}
.btn svg{width:17px;height:17px}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 12px 26px -12px rgba(0,122,255,.6)}
.btn-blue:hover{transform:translateY(-2px);box-shadow:0 18px 34px -12px rgba(0,122,255,.65)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
.btn-lime{background:var(--lime);color:#3A4012;box-shadow:0 12px 26px -14px rgba(169,189,42,.7)}
.btn-lime:hover{transform:translateY(-2px)}

/* ---------- header ---------- */
header{position:fixed;top:0;left:0;right:0;z-index:60;transition:background .3s,border-color .3s,box-shadow .3s;border-bottom:1px solid transparent}
header.scrolled{background:rgba(255,255,255,.82);backdrop-filter:blur(16px);border-color:var(--line);box-shadow:0 1px 0 rgba(10,58,130,.03)}
nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--f-display);font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.logo .mark{width:38px;height:38px;flex:none;border-radius:11px;object-fit:cover}
.logo .sub{font-size:12px;color:var(--muted);font-weight:600;letter-spacing:.04em;margin-left:-2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{font-size:14.5px;color:var(--slate);font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--blue)}
.nav-right{display:flex;align-items:center;gap:18px}
.nav-phone{font-family:var(--f-display);font-weight:700;font-size:14.5px;color:var(--blue);display:flex;align-items:center;gap:7px}
.nav-phone svg{width:15px;height:15px}
.nav-dl{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;color:var(--slate);font-weight:500;transition:color .2s}
.nav-dl:hover{color:var(--blue)}
.nav-dl svg{width:15px;height:15px;stroke:currentColor;fill:none}
.dl-row{display:flex;align-items:center;gap:16px;margin-top:30px;flex-wrap:wrap}
.dl-note{font-size:13px;color:var(--muted);line-height:1.4}
.dl-note b{font-family:var(--f-mono,var(--f-display));font-weight:700;color:var(--slate)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;margin-right:-8px}
.hamburger span{width:23px;height:2px;background:var(--ink);border-radius:2px}

/* ---------- hero ---------- */
.hero{position:relative;padding:130px 0 90px;overflow:hidden;background:linear-gradient(180deg,var(--blue-tint),#fff 70%)}
.hero .energy{width:760px;height:760px;top:-180px;right:-160px;opacity:.9}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:54px;align-items:center}
.hero h1{font-size:clamp(38px,5vw,62px);letter-spacing:-.03em;margin:22px 0 22px}
.hero h1 .hl{color:var(--blue)}
.hero .lead{max-width:34ch;margin-bottom:18px}
.disclaimer{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);background:var(--blue-soft);border-radius:999px;padding:7px 15px;margin-bottom:30px}
.disclaimer svg{width:14px;height:14px;stroke:var(--blue);flex:none}
.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-bottom:34px}
.hero-chips{display:flex;gap:26px;flex-wrap:wrap}
.hchip{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--slate);white-space:nowrap;flex:none}
.hchip .ic{width:34px;height:34px;border-radius:10px;background:var(--blue-soft);display:grid;place-items:center;flex:none}
.hchip .ic svg{width:18px;height:18px;stroke:var(--blue)}
.hchip b{font-family:var(--f-display);font-weight:700}

.hero-visual{position:relative}
.hero-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden}
.hero-card .photo{display:block;width:100%;height:380px;background:#fbfcfe;object-fit:cover}
.float-badge{position:absolute;display:flex;align-items:center;gap:11px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:12px 16px;box-shadow:var(--shadow-sm)}
.float-badge .ic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex:none}
.float-badge .t{font-size:12px;color:var(--muted);line-height:1.2}
.float-badge .v{font-family:var(--f-display);font-weight:700;font-size:15px;color:var(--ink)}
.fb-1{top:18px;left:-22px;animation:floaty 6s ease-in-out infinite}
.fb-2{bottom:22px;right:-20px;animation:floaty 6s ease-in-out infinite 1s}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-11px)}}
.scan-ring{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--lime-deep)}
.scan-ring::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:1.5px solid var(--lime-deep);animation:ping 1.9s ease-out infinite}
@keyframes ping{0%{transform:scale(.5);opacity:.85}100%{transform:scale(2);opacity:0}}

/* ---------- section head ---------- */
.sec-head{max-width:660px}
.sec-head.center{margin:0 auto;text-align:center}
.sec-head h2{font-size:clamp(28px,3.6vw,44px);margin:16px 0 16px}
.sec-head p{color:var(--muted);font-size:17.5px}

/* ---------- pillars (what is it) ---------- */
.whatis{background:var(--bg-2)}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:54px}
.pillar{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px 30px;transition:transform .3s,box-shadow .3s}
.pillar:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.pillar .ic{width:58px;height:58px;border-radius:16px;display:grid;place-items:center;margin-bottom:22px}
.pillar .ic svg{width:30px;height:30px;stroke:#fff}
.pillar h3{font-size:21px;margin-bottom:11px}
.pillar p{color:var(--muted);font-size:15px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:56px;counter-reset:s}
.step{position:relative;text-align:left}
.step .n{width:46px;height:46px;border-radius:13px;background:var(--blue);color:#fff;font-family:var(--f-display);font-weight:800;font-size:18px;display:grid;place-items:center;margin-bottom:18px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:13.5px;line-height:1.55}
.step:not(:last-child)::after{content:"";position:absolute;top:23px;left:58px;right:-8px;height:2px;background:repeating-linear-gradient(90deg,var(--line-2) 0 6px,transparent 6px 12px)}
.step.repair .n{background:var(--lime);color:#3A4012}

/* ---------- two modes ---------- */
.modes{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:54px}
.mode{border-radius:var(--r-lg);padding:40px 38px;position:relative;overflow:hidden;border:1px solid var(--line)}
.mode.detect{background:linear-gradient(160deg,var(--blue-soft),#fff)}
.mode.repair{background:linear-gradient(160deg,var(--lime-soft),#fff)}
.mode .tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-display);font-weight:700;font-size:13px;padding:6px 13px;border-radius:999px;margin-bottom:20px}
.mode.detect .tag{background:var(--blue);color:#fff}
.mode.repair .tag{background:var(--lime);color:#3A4012}
.mode h3{font-size:25px;margin-bottom:12px}
.mode p{color:var(--slate);font-size:15.5px;margin-bottom:22px;max-width:40ch}
.mode .dur{display:flex;align-items:baseline;gap:8px;margin-bottom:22px}
.mode .dur b{font-family:var(--f-display);font-weight:800;font-size:34px;letter-spacing:-.02em}
.mode .dur span{color:var(--muted);font-size:14px}
.mlist{display:flex;flex-direction:column;gap:11px}
.mlist li{display:flex;align-items:flex-start;gap:11px;list-style:none;font-size:14.5px;color:var(--slate)}
.mlist .tick{width:21px;height:21px;border-radius:50%;display:grid;place-items:center;flex:none;margin-top:2px}
.mode.detect .mlist .tick{background:var(--blue-soft)}
.mode.repair .mlist .tick{background:var(--lime-soft)}
.mlist .tick svg{width:12px;height:12px}
.mode.detect .mlist .tick svg{stroke:var(--blue)}
.mode.repair .mlist .tick svg{stroke:var(--lime-deep)}

/* ---------- report sample ---------- */
.report{background:var(--bg-2)}
.report-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:60px;align-items:center}
.report-copy h2{font-size:clamp(28px,3.4vw,42px);margin:16px 0 18px}
.report-copy p{color:var(--muted);font-size:17px;margin-bottom:24px;max-width:42ch}
.report-note{display:flex;gap:11px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-left:3px solid var(--lime);border-radius:12px;padding:15px 18px;font-size:13.5px;color:var(--slate)}
.report-note svg{width:18px;height:18px;stroke:var(--lime-deep);flex:none;margin-top:1px}
.report-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden}
.rc-head{display:flex;align-items:center;justify-content:space-between;padding:22px 26px;border-bottom:1px solid var(--line);background:linear-gradient(90deg,var(--blue-soft),#fff)}
.rc-head .nm{font-family:var(--f-display);font-weight:700;font-size:16px;display:flex;align-items:center;gap:11px}
.rc-head .av{width:38px;height:38px;border-radius:50%;background:var(--blue-soft);flex:none}
.rc-head .sc{text-align:right}
.rc-head .sc b{font-family:var(--f-display);font-weight:800;font-size:24px;color:var(--blue);line-height:1}
.rc-head .sc small{font-size:11px;color:var(--muted)}
.rc-body{padding:22px 26px;display:flex;flex-direction:column;gap:17px}
.rrow{display:grid;grid-template-columns:84px 1fr 52px;align-items:center;gap:14px}
.rrow .rl{font-size:13.5px;color:var(--slate);font-weight:500}
.rbar{height:9px;border-radius:6px;background:var(--blue-soft);overflow:hidden;position:relative}
.rbar i{position:absolute;left:0;top:0;bottom:0;border-radius:6px}
.rrow .rv{font-family:var(--f-display);font-weight:700;font-size:13px;text-align:right}
.rtag{font-size:11px;font-weight:700;padding:2px 8px;border-radius:6px}
.rtag.ok{background:var(--lime-soft);color:#6c7a10}
.rtag.watch{background:#FFF1E0;color:#C77A1E}
.rc-foot{padding:16px 26px;border-top:1px solid var(--line);font-size:12.5px;color:var(--faint);display:flex;align-items:center;gap:8px}

/* ---------- hardware ---------- */
.hw-grid{display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:center}
.hw-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--bg-2);box-shadow:var(--shadow-sm)}
.hw-visual img{width:100%;display:block}
.hw-copy h2{font-size:clamp(28px,3.4vw,42px);margin:16px 0 18px}
.hw-copy>p{color:var(--muted);font-size:17px;margin-bottom:26px;max-width:40ch}
.hw-list{display:flex;flex-direction:column;gap:16px}
.hw-item{display:flex;gap:15px;align-items:flex-start}
.hw-item .ic{width:44px;height:44px;border-radius:12px;background:var(--blue-soft);display:grid;place-items:center;flex:none}
.hw-item .ic svg{width:22px;height:22px;stroke:var(--blue)}
.hw-item h4{font-size:16.5px;font-family:var(--f-display);margin-bottom:4px}
.hw-item p{color:var(--muted);font-size:14px}

/* ---------- applies / effects ---------- */
.applies{background:var(--bg-2)}
.app-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:54px}
.app-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px 32px}
.app-box h3{font-size:20px;margin-bottom:20px;display:flex;align-items:center;gap:11px}
.app-box h3 .ic{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;flex:none}
.app-box h3 .ic svg{width:20px;height:20px;stroke:#fff}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tags span{background:var(--blue-tint);border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-size:14px;color:var(--slate)}
.eff-list{display:flex;flex-direction:column;gap:15px}
.eff-list li{display:flex;gap:13px;list-style:none}
.eff-list .num{width:26px;height:26px;border-radius:8px;background:var(--lime);color:#3A4012;font-family:var(--f-display);font-weight:800;font-size:13px;display:grid;place-items:center;flex:none;margin-top:1px}
.eff-list b{font-family:var(--f-display);font-size:15px;display:block;margin-bottom:2px}
.eff-list p{color:var(--muted);font-size:13.5px;line-height:1.5}

/* ---------- B2B ---------- */
.b2b-inner{background:linear-gradient(150deg,#0B2C5E,#0A4DA8);border-radius:var(--r-lg);padding:64px 56px;color:#fff;position:relative;overflow:hidden}
.b2b-inner .energy{width:560px;height:560px;bottom:-260px;left:-120px;background:radial-gradient(circle,transparent 0 45%,rgba(255,255,255,.08) 46% 47%,transparent 48%),radial-gradient(circle,transparent 0 65%,rgba(255,255,255,.07) 66% 67%,transparent 68%),radial-gradient(circle,rgba(255,255,255,.06),transparent 60%)}
.b2b-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.b2b-copy .eyebrow{color:#9FD0FF}
.b2b-copy .eyebrow::before{background:var(--lime)}
.b2b-copy h2{color:#fff;font-size:clamp(28px,3.4vw,40px);margin:16px 0 16px}
.b2b-copy p{color:rgba(255,255,255,.78);font-size:16.5px;margin-bottom:28px;max-width:38ch}
.b2b-feats{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.b2b-feat{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:22px 22px}
.b2b-feat .ic{width:42px;height:42px;border-radius:11px;background:rgba(255,255,255,.12);display:grid;place-items:center;margin-bottom:14px}
.b2b-feat .ic svg{width:22px;height:22px;stroke:var(--lime)}
.b2b-feat h4{color:#fff;font-size:16px;margin-bottom:6px}
.b2b-feat p{color:rgba(255,255,255,.7);font-size:13.5px;margin:0}

/* ---------- FAQ ---------- */
.faq-list{max-width:840px;margin:50px auto 0;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item.open{border-color:var(--line-2);box-shadow:var(--shadow-sm)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 26px;cursor:pointer;font-family:var(--f-display);font-weight:600;font-size:16.5px;color:var(--ink)}
.faq-q .pm{width:24px;height:24px;flex:none;position:relative;transition:transform .3s}
.faq-q .pm::before,.faq-q .pm::after{content:"";position:absolute;background:var(--blue);border-radius:2px}
.faq-q .pm::before{top:11px;left:4px;right:4px;height:2px}
.faq-q .pm::after{left:11px;top:4px;bottom:4px;width:2px;transition:opacity .3s}
.faq-item.open .pm::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 26px 22px;color:var(--muted);font-size:15px;line-height:1.65}

/* ---------- contact CTA ---------- */
.contact-inner{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:64px 56px;text-align:center;position:relative;overflow:hidden}
.contact-inner .energy{width:600px;height:600px;top:-300px;left:50%;transform:translateX(-50%);opacity:.7}
.contact-inner>*{position:relative}
.contact-inner h2{font-size:clamp(30px,4vw,48px);margin:18px auto 16px;max-width:18ch}
.contact-inner p{color:var(--muted);font-size:17.5px;max-width:42ch;margin:0 auto 30px}
.contact-actions{display:flex;gap:13px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
.contact-meta{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:30px;max-width:760px;margin:0 auto}
.cmeta{text-align:left}
.cmeta .l{font-size:12px;color:var(--faint);font-family:var(--f-display);font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-bottom:6px}
.cmeta .v{font-family:var(--f-display);font-weight:700;font-size:16px;color:var(--ink)}
.cmeta a:hover{color:var(--blue)}

/* ---------- footer ---------- */
footer{background:#10243F;color:#fff;padding:64px 0 34px}
.foot-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:48px;margin-bottom:46px}
.foot-brand .logo{color:#fff}
.foot-brand .logo .sub{color:rgba(255,255,255,.6)}
.foot-brand p{color:rgba(255,255,255,.6);font-size:14px;max-width:34ch;margin:18px 0 0}
.foot-col h4{font-family:var(--f-display);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.5);margin-bottom:16px}
.foot-col a,.foot-col p{display:block;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:11px;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:14px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.5);flex-wrap:wrap}
.foot-disc{font-size:12.5px;color:rgba(255,255,255,.42);margin-top:18px;line-height:1.6;max-width:80ch}

/* ---------- video tutorial ---------- */
.videosec{background:var(--bg-2)}
.video-card{position:relative;max-width:960px;margin:52px auto 0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:16/9;background:#0d2340}
.video-card video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;background:#0d2340}
.video-poster{position:absolute;inset:0;cursor:pointer;display:grid;place-items:center;transition:opacity .4s}
.video-poster.hide{opacity:0;pointer-events:none}
.video-poster .pimg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.video-poster::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,28,58,.30),rgba(8,28,58,.62))}
.play-btn{position:relative;z-index:2;width:88px;height:88px;border-radius:50%;background:var(--blue);display:grid;place-items:center;box-shadow:0 16px 40px -10px rgba(0,122,255,.7);transition:transform .25s}
.video-poster:hover .play-btn{transform:scale(1.08)}
.play-btn::before{content:"";position:absolute;inset:-10px;border-radius:50%;border:2px solid rgba(255,255,255,.5);animation:ping 2s ease-out infinite}
.play-btn svg{width:30px;height:30px;margin-left:4px;fill:#fff}
.video-cap{position:absolute;left:26px;bottom:24px;z-index:2;color:#fff}
.video-cap .l{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-display);font-weight:700;font-size:13px;background:rgba(255,255,255,.16);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.22);padding:6px 13px;border-radius:999px}
.video-cap .l::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime)}
.video-soon{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;background:rgba(8,28,58,.82);color:#fff;font-size:13px;padding:8px 16px;border-radius:999px;opacity:0;transition:opacity .3s;pointer-events:none}
.video-soon.show{opacity:1}

/* ---------- tech principle ---------- */
.tech{background:#fff}
.tech-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center;margin-top:54px}
.tech-panel{background:linear-gradient(165deg,var(--blue-tint),#fff);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.tp-head{display:flex;align-items:center;gap:9px;font-family:var(--f-display);font-weight:700;font-size:13.5px;color:var(--slate);margin-bottom:16px}
.tp-head .dot{width:8px;height:8px;border-radius:50%;background:var(--lime-deep);position:relative;flex:none}
.tp-head .dot::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1.5px solid var(--lime-deep);animation:ping 1.9s ease-out infinite}
.tp-wave{position:relative;height:148px;border-radius:16px;background:
  repeating-linear-gradient(0deg,transparent 0 28px,rgba(0,122,255,.05) 28px 29px),
  repeating-linear-gradient(90deg,transparent 0 28px,rgba(0,122,255,.05) 28px 29px),#fff;
  border:1px solid var(--line);overflow:hidden;margin-bottom:16px}
.tp-wave svg{position:absolute;top:0;left:0;height:100%;width:200%}
.tp-wave .w1{fill:none;stroke:var(--blue);stroke-width:2.6;stroke-linecap:round;opacity:.92;animation:wavescroll 7s linear infinite}
.tp-wave .w2{fill:none;stroke:var(--lime-deep);stroke-width:2.6;stroke-linecap:round;opacity:.85;animation:wavescroll 4.6s linear infinite}
@keyframes wavescroll{from{transform:translateX(0)}to{transform:translateX(-200px)}}
.tp-eq{display:flex;align-items:flex-end;gap:4px;height:42px;margin-bottom:16px}
.tp-eq i{flex:1;background:var(--blue-soft);border-radius:3px;height:30%;animation:eqbar 1.3s ease-in-out infinite}
@keyframes eqbar{0%,100%{height:24%}50%{height:92%}}
.tp-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:15px}
.tp-foot span{font-size:13px;color:var(--muted)}
.tp-foot b{font-family:var(--f-display);font-weight:800;font-size:22px;color:var(--blue)}
.tp-legend{display:flex;gap:18px;margin-bottom:14px}
.tp-legend i{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted)}
.tp-legend i::before{content:"";width:14px;height:3px;border-radius:2px}
.tp-legend .l-base::before{background:var(--blue)}
.tp-legend .l-cur::before{background:var(--lime-deep)}
.tech-points{list-style:none;display:flex;flex-direction:column;gap:24px}
.tech-points li{display:flex;gap:16px}
.tech-points .n{width:40px;height:40px;border-radius:12px;background:var(--blue-soft);color:var(--blue);font-family:var(--f-display);font-weight:800;font-size:16px;display:grid;place-items:center;flex:none}
.tech-points li:last-child .n{background:var(--lime-soft);color:var(--lime-deep)}
.tech-points h4{font-family:var(--f-display);font-size:17.5px;margin-bottom:6px}
.tech-points p{color:var(--muted);font-size:14.5px;line-height:1.62}
.tech-points em{font-style:normal;color:var(--blue);font-weight:600}

/* ---------- reveal ---------- */
.js-anim .reveal{opacity:0;transform:translateY(26px);transition:opacity .75s cubic-bezier(.2,.8,.2,1),transform .75s cubic-bezier(.2,.8,.2,1)}
.js-anim .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js-anim .reveal{opacity:1;transform:none;transition:none}}

/* ---------- mobile sheet ---------- */
.m-sheet{position:fixed;inset:0;z-index:80;background:#fff;transform:translateX(100%);transition:transform .35s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column;padding:22px 30px;overflow-y:auto}
.m-sheet.open{transform:none}
.m-sheet .top{display:flex;justify-content:space-between;align-items:center;margin-bottom:40px}
.m-sheet .close{background:none;border:none;font-size:34px;color:var(--ink);cursor:pointer;line-height:1}
.m-sheet a.m-link{font-family:var(--f-display);font-size:25px;font-weight:700;padding:16px 0;border-bottom:1px solid var(--line)}
.m-sheet .btn{margin-top:28px}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .section{padding:74px 0}
  .hero{padding:112px 0 70px}
  .hero-grid,.report-grid,.hw-grid,.b2b-grid,.tech-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{max-width:440px;margin:0 auto}
  .pillars,.modes,.app-grid,.b2b-feats{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;gap:24px}
  .step::after{display:none}
  .nav-links,.nav-phone,.nav-dl{display:none}
  .hamburger{display:flex}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .wrap{padding:0 20px}
  nav{height:64px}
  .logo{font-size:17px;gap:8px}
  .logo .mark{width:34px;height:34px}
  .logo .sub{font-size:11px}
  .nav-right{gap:10px}
  .nav-right>.btn{display:none}
  .m-sheet{padding:20px 22px max(24px,env(safe-area-inset-bottom))}
  .m-sheet .top{margin-bottom:24px}
  .m-sheet a.m-link{font-size:21px;padding:14px 0}
  .hero{padding:96px 0 58px}
  .hero h1{font-size:36px;margin:18px 0 18px}
  .lead{font-size:16.5px}
  .hero .lead{max-width:none}
  .disclaimer{align-items:flex-start;border-radius:14px;line-height:1.45;width:100%;padding:10px 13px}
  .hero-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:28px}
  .hero-actions .btn{padding:13px 14px;font-size:14.5px}
  .hero-chips{gap:12px}
  .hchip{white-space:normal;flex:1 1 100%;align-items:flex-start}
  .hero-visual{max-width:100%}
  .hero-card{border-radius:22px}
  .hero-card .photo{height:260px;object-fit:contain;padding:10px}
  .sec-head p{font-size:16px}
  .pillars,.modes,.app-grid{margin-top:36px}
  .steps{grid-template-columns:1fr}
  .steps{gap:18px;margin-top:36px}
  .step{display:grid;grid-template-columns:46px 1fr;column-gap:14px}
  .step .n{grid-row:1 / span 2;margin-bottom:0}
  .contact-meta{gap:24px}
  .contact-meta{display:grid;grid-template-columns:1fr;text-align:center;padding-top:24px}
  .cmeta{text-align:center}
  .cmeta .v{font-size:15px}
  .b2b-inner,.contact-inner,.b2b-feats{padding-left:24px;padding-right:24px}
  .b2b-inner{padding:44px 24px}
  .contact-inner{padding-top:46px;padding-bottom:46px}
  .contact-inner p{font-size:16px;margin-bottom:24px}
  .video-card{margin-top:34px;border-radius:22px}
  .play-btn{width:68px;height:68px}
  .play-btn svg{width:24px;height:24px}
  .video-cap{left:16px;bottom:16px}
  .video-cap .l{font-size:12px;padding:5px 10px}
  .report-card,.app-box,.pillar{border-radius:22px}
  .report-card{margin:0 -2px}
  .rc-head,.rc-body{padding-left:20px;padding-right:20px}
  .rrow{grid-template-columns:70px 1fr 44px;gap:10px}
  .faq-list{margin-top:34px}
  .faq-q{font-size:15.5px;padding:19px 20px}
  .faq-a p{padding:0 20px 20px}
  .mode{padding:32px 26px}
  .float-badge{display:none}
  .foot-grid{grid-template-columns:1fr}
  footer{padding-top:48px}
}
@media(max-width:380px){
  .wrap{padding:0 16px}
  .hero h1{font-size:32px}
  .hero-actions{grid-template-columns:1fr}
  .hero-card .photo{height:230px}
  .btn{width:100%;padding-left:16px;padding-right:16px}
  .rrow{grid-template-columns:1fr;gap:7px}
  .rrow .rv{text-align:left}
}