/* ===== TERRAD v4 additions: product tour, live weigh demo, modules marquee, partners ===== */
.v4sec{position:relative;padding:120px 0;z-index:2}
.v4sec .head{max-width:760px;margin:0 auto 46px;text-align:center}
.v4sec .head .lede{margin:18px auto 0}
/* --- product tour */
.tour{display:grid;grid-template-columns:300px 1fr;gap:34px;align-items:center}
.tabs4{display:flex;flex-direction:column;gap:8px}
.tabs4 button{all:unset;cursor:pointer;display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:center;padding:16px 18px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.5);backdrop-filter:blur(14px);transition:background .35s var(--ease),transform .35s var(--ease),box-shadow .35s}
.tabs4 button:hover{transform:translateX(4px)}
.tabs4 button em{font-style:normal;font-family:var(--mono);font-size:12px;color:var(--gold);font-weight:700}
.tabs4 button b{display:block;font-weight:500;font-size:16px;color:var(--ink)}
.tabs4 button small{display:block;font-size:13px;color:var(--mute);margin-top:2px;line-height:1.35}
.tabs4 button.on{background:var(--ink);border-color:var(--ink);box-shadow:0 18px 40px rgba(30,40,58,.25)}
.tabs4 button.on b{color:#fff}.tabs4 button.on small{color:rgba(255,255,255,.62)}
.tabs4 .prog{height:3px;border-radius:9px;background:rgba(255,255,255,.18);margin-top:10px;overflow:hidden;grid-column:2;display:none}
.tabs4 .on .prog{display:block}.tabs4 .prog i{display:block;height:100%;width:0;background:var(--gold)}
.tview{perspective:1800px}
.tview .frame{position:relative;border-radius:22px;overflow:hidden;background:#fff;box-shadow:0 50px 100px rgba(30,40,58,.22),0 0 0 1px var(--line);transform-style:preserve-3d;transition:transform .5s var(--ease)}
.tview .bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:#F6F3EE;border-bottom:1px solid var(--line)}
.tview .bar i{width:10px;height:10px;border-radius:50%;background:#E2DDD4}.tview .bar span{margin-left:10px;font-family:var(--mono);font-size:11.5px;color:var(--mute)}
.tview .imgs{position:relative;aspect-ratio:3600/1700;background:#FBFAF7}
.tview .imgs img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top left;opacity:0;transform:scale(1.03);transition:opacity .6s var(--ease),transform 1.2s var(--ease)}
.tview .imgs img.on{opacity:1;transform:none}
.tview .cap{display:flex;justify-content:space-between;gap:16px;margin-top:16px;font-size:14px;color:var(--mute)}
.tview .cap b{color:var(--ink);font-weight:500}
.real{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--mute);text-transform:uppercase}
/* --- live weigh demo */
.try{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:stretch}
.wpanel{border-radius:28px;padding:34px;background:linear-gradient(140deg,#1F2B45,#121827);color:#fff;position:relative;overflow:hidden;box-shadow:0 40px 90px rgba(18,24,39,.35)}
.wpanel:after{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(closest-side,rgba(209,117,6,.4),transparent)}
.wpanel small{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:rgba(255,255,255,.55)}
.wpanel .num{font-family:var(--mono);font-weight:700;font-size:clamp(64px,8vw,118px);letter-spacing:-.05em;line-height:1;margin-top:14px;font-variant-numeric:tabular-nums}
.wpanel .num span{font-size:.32em;color:rgba(255,255,255,.5);margin-left:10px;letter-spacing:0}
.wst{display:inline-flex;gap:10px;align-items:center;margin-top:18px;font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.14em;padding:9px 16px;border-radius:99px;background:rgba(255,255,255,.08);transition:background .3s}
.wst.lock{background:var(--green)}
.wst i{width:8px;height:8px;border-radius:50%;background:#F2B04A;animation:blink 1s infinite}.wst.lock i{background:#fff;animation:none}
@keyframes blink{50%{opacity:.25}}
.wgtn{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:24px;position:relative;z-index:1}
.wgtn div{background:rgba(255,255,255,.06);border-radius:14px;padding:12px 14px}.wgtn small{font-size:11px}.wgtn b{display:block;font-family:var(--mono);font-size:20px;margin-top:2px}
.wacts{display:flex;gap:10px;margin-top:22px;position:relative;z-index:1;flex-wrap:wrap}
.wacts button{all:unset;cursor:pointer;font-weight:500;font-size:15px;padding:13px 22px;border-radius:99px;background:rgba(255,255,255,.1);transition:transform .3s var(--ease),background .3s,opacity .3s}
.wacts button.pri{background:linear-gradient(#EE9A2E,#D17506)}
.wacts button:disabled{opacity:.35;cursor:not-allowed}.wacts button:not(:disabled):hover{transform:translateY(-2px)}
.bill4{border-radius:28px;background:#FBF8F1;padding:30px 32px;box-shadow:0 30px 70px rgba(30,40,58,.15);position:relative;overflow:hidden;font-family:var(--mono);font-size:13.5px;color:var(--ink)}
.bill4 .t{font-weight:700;letter-spacing:.14em;color:#8A6A3E;font-size:12px}
.bill4 .r{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed rgba(30,40,58,.15)}
.bill4 .r span{color:var(--mute)}
.bill4 .hash{margin-top:16px;padding:12px;border-radius:12px;background:rgba(30,40,58,.05);font-size:12px;color:var(--mute);min-height:44px}
.bill4 .hash b{color:var(--green)}
.bill4 .paper{transition:clip-path 1.1s var(--ease);clip-path:inset(0 0 100% 0)}
.bill4.printed .paper{clip-path:inset(0 0 0 0)}
.bill4 .wait{position:absolute;inset:0;display:grid;place-items:center;text-align:center;color:var(--mute);font-family:var(--sans,inherit);font-size:15px;padding:30px;transition:opacity .4s}
.bill4.printed .wait{opacity:0;pointer-events:none}
/* --- modules marquee */
.mods{overflow:hidden;padding:26px 0;mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.mods .row{display:flex;gap:12px;width:max-content;animation:mq 46s linear infinite}
.mods .row.rev{animation-direction:reverse;margin-top:12px;animation-duration:54s}
.mods span{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:99px;background:rgba(255,255,255,.62);border:1px solid var(--line);font-size:15px;font-weight:500;white-space:nowrap;backdrop-filter:blur(10px)}
.mods span i{width:8px;height:8px;border-radius:50%;background:var(--gold)}
.mods span.k{background:var(--ink);color:#fff;border-color:var(--ink)}
@keyframes mq{to{transform:translateX(-50%)}}
/* --- stats */
.stats4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:40px}
.stats4 .glass{padding:24px;border-radius:22px}
.stats4 b{display:block;font-size:clamp(34px,3.4vw,52px);font-weight:500;letter-spacing:-.04em}
.stats4 span{font-size:14px;color:var(--mute)}
/* --- partners strip + page */
.pstrip{display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap;margin-top:28px}
.plogo{display:flex;align-items:center;justify-content:center;height:110px;min-width:290px;padding:0 34px;border-radius:24px;background:rgba(255,255,255,.7);border:1px solid var(--line);transition:transform .4s var(--ease),box-shadow .4s}
.plogo:hover{transform:translateY(-4px);box-shadow:0 24px 50px rgba(30,40,58,.14)}
.plogo img{max-height:58px;max-width:240px}
.pcard{display:grid;grid-template-columns:1fr 1.1fr;gap:0;border-radius:32px;overflow:hidden;margin-top:26px;box-shadow:0 40px 90px rgba(30,40,58,.14);border:1px solid var(--line);background:#fff}
.pcard .vis{min-height:420px;display:grid;place-items:center;position:relative;overflow:hidden}
.pcard .vis img.lg{max-width:72%;position:relative;z-index:1}
.pcard .vis.ss{background:linear-gradient(160deg,#2B3E78,#1E295A)}
.pcard .vis.ss:before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;right:-200px;bottom:-220px;background:rgba(127,176,214,.18)}
.pcard .vis.kc{background:linear-gradient(160deg,#FAF8F5,#EFE8F7)}
.pcard .txt{padding:46px 48px}
.pcard .txt h3{font-size:34px;font-weight:500;letter-spacing:-.03em;margin-top:12px}
.pcard .txt p{color:var(--mute);margin-top:12px;line-height:1.6}
.pfacts{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:22px}
.pfacts div{padding:14px 16px;border-radius:16px;background:var(--paper)}
.pfacts b{display:block;font-size:24px;font-weight:500;letter-spacing:-.03em}.pfacts span{font-size:13px;color:var(--mute)}
.ptag{display:inline-flex;font-family:var(--mono);font-size:11px;letter-spacing:.16em;font-weight:700;padding:7px 12px;border-radius:99px;background:var(--ink);color:#fff;text-transform:uppercase}
.ptiers{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px}
.ptiers .glass{padding:26px;border-radius:24px}
.ptiers .ic{width:46px;height:46px;border-radius:14px;background:var(--ink);color:var(--gold);display:grid;place-items:center}
.ptiers .ic svg{width:22px;height:22px}
.ptiers h4{font-size:19px;font-weight:500;margin-top:16px}.ptiers p{font-size:14px;color:var(--mute);margin-top:8px;line-height:1.55}
.steps4{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px;counter-reset:s}
.steps4 .glass{padding:26px;border-radius:24px;position:relative}
.steps4 .glass:before{counter-increment:s;content:"0" counter(s);font-family:var(--mono);font-size:13px;color:var(--gold);font-weight:700}
.steps4 h4{font-size:19px;font-weight:500;margin-top:10px}.steps4 p{font-size:14px;color:var(--mute);margin-top:6px}
.note4{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--faint);margin-top:14px}
@media (max-width:980px){.tour,.try,.pcard{grid-template-columns:1fr}.tabs4{flex-direction:row;overflow-x:auto;padding-bottom:6px}.tabs4 button{min-width:220px}.stats4,.ptiers{grid-template-columns:1fr 1fr}.steps4{grid-template-columns:1fr}.pcard .vis{min-height:260px}.pcard .txt{padding:30px 26px}}
@media (max-width:560px){.stats4,.ptiers,.pfacts{grid-template-columns:1fr}.plogo{min-width:0;width:100%}.v4sec{padding:80px 0}}
@media (max-width:560px){.wpanel{padding:24px}.wgtn{gap:6px}.wgtn div{padding:10px 10px}.wgtn b{font-size:16px}.wgtn small{font-size:10px}.bill4{padding:22px}}