*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#101412;color:#fff;font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button{border:0}button:focus-visible,a:focus-visible{outline:3px solid #53efb5;outline-offset:6px}.hero{position:relative;isolation:isolate;min-height:100svh;overflow:hidden}.hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:-2}.header{height:clamp(78px,5.3vw,105px);padding:0 3.8%;display:flex;align-items:center;gap:4.5vw}.brand{display:flex;align-items:center;gap:12px;font-size:clamp(26px,2.2vw,40px);font-weight:750;letter-spacing:-1px;white-space:nowrap}.brand svg{width:34px;height:42px;color:#51edb2}.header nav{display:flex;align-items:center;gap:2.5vw}.header nav button,.login{color:#fff;background:none;padding:12px 0;font-size:clamp(14px,1.12vw,20px);font-weight:600;white-space:nowrap}.chevron{display:inline-block;width:8px;height:8px;border-bottom:1.5px solid;border-right:1.5px solid;transform:rotate(45deg);vertical-align:4px;margin-left:10px}.account{margin-left:auto;display:flex;align-items:center;gap:2.5vw}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:#53edb4;color:#071c13;border:1px solid transparent;border-radius:999px;padding:17px 30px;font-size:clamp(16px,1.1vw,20px);font-weight:650;min-height:58px;transition:background .2s,transform .2s}.button:hover{background:#78f4c6;transform:translateY(-2px)}.button:active{transform:translateY(0)}.small{min-height:48px;padding:12px 30px}.copy{margin-left:3.8%;padding-top:clamp(90px,13.3vh,170px);padding-bottom:110px;width:52%}.eyebrow{margin:0 0 28px;letter-spacing:.24em;font-size:clamp(15px,1.2vw,22px);font-weight:500}.copy h1{font-size:clamp(42px,3.9vw,74px);line-height:1.28;letter-spacing:.005em;font-weight:750;margin:0 0 30px;text-wrap:nowrap}.description{font-size:clamp(15px,1.19vw,22px);line-height:1.8;color:#eee;margin:0}.actions{display:flex;gap:20px;margin-top:44px}.actions .button{padding-inline:27px;min-width:195px}.actions .button span{font-size:27px;line-height:1}.outline{color:white;border:1px solid #fff;background:transparent}.outline:hover{background:rgba(255,255,255,.12)}.outline svg{width:21px;height:21px;flex:none}dialog{color:#eaf5ef;background:#18221e;border:1px solid #4b6256;border-radius:22px;padding:38px;width:min(440px,calc(100vw - 32px));box-shadow:0 20px 90px #0008}dialog::backdrop{background:#0009;backdrop-filter:blur(6px)}dialog h2{font-size:26px}dialog p{line-height:1.8;color:#c7d2ca}.close{position:absolute;right:16px;top:10px;background:transparent;color:white;font-size:30px}.preview-label{font-size:12px;letter-spacing:.12em;color:#70edba}.dismiss{margin-top:16px;font-size:15px;min-height:46px;padding:10px 23px}
@media(min-width:1600px){.copy{padding-top:14vh}.actions{margin-top:46px}}
@media(max-width:1000px){.header{gap:24px}.header nav{gap:18px}.header nav button{font-size:14px}.account{gap:20px}.small{padding:10px 20px}.brand{font-size:27px}.brand svg{width:28px}.copy{width:65%;padding-top:15vh}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#0007,transparent 75%);z-index:-1}.copy h1{font-size:46px}.description{font-size:16px}.actions{gap:12px}.actions .button{min-width:170px;padding-inline:20px}}
@media(max-width:700px){.hero{min-height:100svh}.hero-photo{object-position:60% center}.hero:after{background:linear-gradient(90deg,#000b,#0004),linear-gradient(0deg,#0009,transparent 75%)}.header{height:auto;min-height:78px;padding:18px 22px;flex-wrap:wrap;gap:14px}.brand{font-size:27px;gap:8px}.brand svg{width:25px;height:32px}.header nav{order:3;width:100%;justify-content:space-between;gap:12px}.header nav button{font-size:13px;padding:9px 0}.account{gap:12px}.login{font-size:14px}.small{font-size:13px;min-height:37px;padding:8px 16px}.chevron{width:6px;height:6px;margin-left:5px}.copy{width:auto;margin:0;padding:clamp(60px,11vh,110px) 22px 64px}.eyebrow{font-size:13px;letter-spacing:.2em;margin-bottom:23px}.copy h1{font-size:clamp(31px,8.8vw,48px);line-height:1.35;margin-bottom:24px}.description{font-size:14px;line-height:1.9}.description br{display:none}.actions{gap:12px;margin-top:32px;flex-wrap:wrap}.actions .button{font-size:14px;min-width:0;min-height:49px;padding:12px 20px}.actions .button span{font-size:21px}.outline svg{width:18px;height:18px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}}
.hero-media{position:absolute;inset:0;z-index:-2;overflow:hidden;background:#101412}.hero-media .hero-photo{z-index:0;opacity:1}.hero-media .standby{opacity:0}
/* finesse component: Xiaozhi conversation; existing hero preserved */
.xiaozhi-demo{position:absolute;right:3.8%;top:32%;width:clamp(300px,27vw,430px);z-index:2;color:#f5faf7;font-size:clamp(14px,1.05vw,18px)}
.demo-meta{display:flex;align-items:center;justify-content:space-between;margin:0 4px 18px;color:#e1ece7;font-size:11px;letter-spacing:.08em;text-shadow:0 1px 8px #10221e}
.motion-toggle{color:inherit;background:#233d3655;border:1px solid #e3f7ee30;border-radius:20px;padding:7px 12px;min-height:32px;font-size:11px}
.seller-bubble{display:flex;align-items:flex-start;gap:11px;width:88%;padding:17px 20px;border-radius:24px;background:linear-gradient(120deg,#dce8e53d,#dce8e523);border:1px solid #effff51c;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 8px 28px #0d20171a}
.seller-mark{display:grid;place-items:center;flex:none;width:27px;height:27px;background:#f0e8d3;color:#494333;border-radius:50%;font-size:12px}
.xiaozhi-demo p{margin:0;line-height:1.7;font-weight:450;text-shadow:0 1px 5px #10221e30}
.assistant-step{margin:20px 0 18px 28px}
.assistant-identity{display:flex;align-items:center;gap:9px;margin:0 0 10px 3px;font-size:14px;font-weight:550}
.assistant-identity img{border-radius:50%;object-fit:cover;object-position:center 25%;border:1px solid #ffffff60;box-shadow:0 2px 12px #0a201d30}
.identity-dot{display:inline-block;margin-left:8px;width:5px;height:5px;border-radius:50%;background:#77efc1;vertical-align:middle}
.assistant-bubble{border:1px solid #bcf3db65;border-radius:24px;padding:19px 21px;background:linear-gradient(130deg,#d8efe32e,#dbe5e21f);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:inset 0 1px 0 #f3fff329,0 0 20px #95e0bd16,0 12px 30px #0a201d20;min-height:103px}
.demo-input{display:flex;align-items:center;justify-content:space-between;gap:12px;width:calc(100% - 28px);margin-left:28px;padding:15px 20px;border-radius:40px;color:#f1f6f3;background:#c8ddd333;border:1px solid #f0fff31c;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);font-size:13px;text-align:left;min-height:50px;transition:background .25s}
.demo-input svg{width:22px;height:22px;flex:none}
@media(hover:hover){.demo-input:hover,.motion-toggle:hover{background:#d4eee34a}}
.demo-input:active{background:#d4eee35a}
@media(min-width:701px) and (max-width:1100px){.xiaozhi-demo{right:3%;top:38%;width:300px}.xiaozhi-demo p{font-size:14px}}
@media(max-width:700px){.xiaozhi-demo{position:relative;top:auto;right:auto;width:auto;margin:0 22px 44px;max-width:420px}.copy{padding-bottom:38px}.seller-bubble{background:#47615b77}.assistant-bubble{background:#3c575188}.demo-input{background:#49635d88}.demo-meta{font-size:10px}.assistant-bubble{min-height:90px}}
/* Larger, neutral glass conversation, aligned with the reference. */
.xiaozhi-demo{right:3.8%;top:29%;width:clamp(370px,29vw,490px);font-size:clamp(17px,1.25vw,22px)}
.seller-bubble{width:90%;padding:20px 23px;border:0;background:linear-gradient(120deg,#ebeeef55,#d6dadd33);border-radius:26px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.seller-mark{width:32px;height:32px;font-size:13px}.xiaozhi-demo p{line-height:1.65;font-weight:400}
.assistant-step{margin:24px 0 22px 34px}.assistant-identity{font-size:17px;gap:11px;margin-bottom:13px}.assistant-identity img{width:43px;height:43px}
.assistant-bubble{min-height:125px;padding:21px 24px;border-radius:26px;border:1px solid #ead7e396;background:linear-gradient(130deg,#e6e3e344,#cbd0d32e);box-shadow:inset 0 1px 1px #fff5,0 0 19px #e7b6d52b,0 8px 30px #10151b15;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.demo-input{margin-left:34px;width:calc(100% - 34px);min-height:59px;padding:17px 23px;font-size:16px;border:0;background:#dce1e446;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.demo-meta{margin-bottom:20px}.demo-input:focus-visible{outline:2px solid #e2e9e6;outline-offset:4px}
.hero-interlude{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:2;opacity:0;pointer-events:none}
@media(min-width:701px) and (max-width:1100px){.xiaozhi-demo{width:320px;right:2.5%;top:36%;font-size:16px}.xiaozhi-demo p{font-size:16px}.assistant-bubble{padding:18px}.demo-input{font-size:13px}}
@media(max-width:700px){.xiaozhi-demo{position:relative;top:auto;right:auto;width:auto;margin:0 22px 44px;font-size:17px}.assistant-step{margin-left:18px}.demo-input{margin-left:18px;width:calc(100% - 18px);font-size:14px}.assistant-bubble{min-height:125px;background:#64676b80}.seller-bubble{background:#73777a80}.hero-interlude{object-position:60% center}}
/* Video ends, photo fades in, holds for three seconds, then video resumes. */
.hero-interlude{transition:opacity .6s ease-in-out}
.xiaozhi-demo{transition:opacity .55s ease,transform .55s ease}
.xiaozhi-demo.scene-hidden{opacity:0;transform:translateY(-8px);pointer-events:none}
.work-bubble{display:grid;min-height:211px;padding:20px 23px}
.work-progress,.work-result{grid-area:1/1;transition:opacity .4s ease,transform .4s ease}
.work-progress{align-self:center;position:relative;padding-top:3px}
.work-indicator{display:block;font-size:24px;color:#e8dcf0;margin-bottom:12px}
.work-track{height:2px;border-radius:2px;background:#ffffff26;margin:19px 0 12px;overflow:hidden}.work-track span{display:block;height:100%;background:#dceee5;transform-origin:left;transition:transform .7s ease}
.work-detail{font-size:12px;color:#e1e7e5}
.work-result{opacity:0;transform:translateY(9px);pointer-events:none}
.result-status{font-size:13px;color:#cff3e1;margin-bottom:10px;display:flex;gap:7px;align-items:center}
.result-evidence{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid #ffffff25;margin-top:16px;padding-top:13px;font-size:13px;color:#f2f3f4}.result-evidence strong{font-size:24px;font-weight:600;letter-spacing:-.02em;white-space:nowrap}
.xiaozhi-demo .result-note{font-size:12px;line-height:1.6;color:#e1e7e5;margin-top:9px}
.work-bubble.is-complete .work-progress{opacity:0;transform:translateY(-7px)}
.work-bubble.is-complete .work-result{opacity:1;transform:translateY(0)}
@media(max-width:700px){.work-bubble{min-height:220px}.result-evidence strong{font-size:22px}}
/* Each second turn delivers a different kind of artifact. */
.result-evidence{display:block;margin-top:13px;padding-top:10px}
.evidence-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:5px 0}
.evidence-row strong{font-size:21px}
.xiaozhi-demo[data-kind="answer"] .result-evidence,.xiaozhi-demo[data-kind="answer"] .result-note{display:none}
.xiaozhi-demo[data-kind="answer"] .work-bubble{min-height:157px}
.xiaozhi-demo[data-kind="summary"] .evidence-row,.xiaozhi-demo[data-kind="plan"] .evidence-row{justify-content:flex-start;gap:14px}
.xiaozhi-demo[data-kind="summary"] .evidence-row>span,.xiaozhi-demo[data-kind="plan"] .evidence-row>span{color:#c8e8da;font-size:12px;letter-spacing:.06em}
.xiaozhi-demo[data-kind="summary"] .evidence-row strong,.xiaozhi-demo[data-kind="plan"] .evidence-row strong{font-size:15px;font-weight:450;white-space:normal}
.xiaozhi-demo[data-kind="compare"] .evidence-row{border-bottom:1px solid #ffffff14}
.xiaozhi-demo[data-kind="plan"] .result-status{color:#f3dfb4}
/* Four messages remain visible together: seller, Xiaozhi, seller, Xiaozhi. */
.xiaozhi-demo{top:15%;font-size:clamp(16px,1.12vw,20px)}
.demo-meta{margin-bottom:14px}
.xiaozhi-demo .seller-bubble{padding:14px 19px;border-radius:22px}
.first-answer{margin:13px 0 15px 30px}
.first-answer .assistant-bubble{min-height:0;padding:14px 19px;border-radius:22px}
.xiaozhi-demo .assistant-identity{margin-bottom:7px;font-size:14px;gap:8px}
.xiaozhi-demo .assistant-identity img{width:30px;height:30px}
.xiaozhi-demo .assistant-step{margin:13px 0 14px 30px}
.xiaozhi-demo .work-bubble{min-height:185px;padding:16px 19px;border-radius:22px}
.xiaozhi-demo .demo-input{margin-left:30px;width:calc(100% - 30px);min-height:45px;padding:12px 19px;font-size:13px}
.xiaozhi-demo .result-evidence{margin-top:9px;padding-top:7px}
.xiaozhi-demo .result-status{margin-bottom:7px}
.xiaozhi-demo .result-note{margin-top:6px}
@media(max-width:1100px) and (min-width:701px){.xiaozhi-demo{top:20%;width:330px}.xiaozhi-demo p{font-size:15px}}
@media(max-width:700px){.xiaozhi-demo{top:auto;margin-top:0;font-size:16px}.first-answer,.xiaozhi-demo .assistant-step{margin-left:15px}.xiaozhi-demo .demo-input{margin-left:15px;width:calc(100% - 15px)}}
/* Seller portrait uses the same photographic character as the hero. */
.seller-mark.seller-avatar{background-image:url('assets/merchant-interlude.png');background-size:185px auto;background-position:55% 33%;background-repeat:no-repeat;background-color:#525b59;border:1px solid #ffffff45;box-shadow:0 1px 5px #0002}

/* Soft lilac-pink edge light: only its opacity animates. */
.xiaozhi-demo .assistant-bubble{position:relative;isolation:isolate;border-color:rgba(236,205,230,.55);background:linear-gradient(130deg,rgba(222,218,229,.24),rgba(192,201,211,.16));box-shadow:inset 0 1px 0 rgba(255,245,255,.18),0 6px 24px rgba(19,20,30,.12);backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px)}
.xiaozhi-demo .assistant-bubble::before,.xiaozhi-demo .assistant-bubble::after{content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;z-index:-1}
.xiaozhi-demo .assistant-bubble::before{border:1px solid rgba(238,203,232,.28);box-shadow:0 0 12px rgba(223,172,220,.13),inset 0 0 8px rgba(234,191,228,.07)}
.xiaozhi-demo .assistant-bubble::after{border:1px solid rgba(248,213,241,.8);box-shadow:0 0 10px rgba(238,182,228,.35),0 0 24px rgba(207,177,230,.19),inset 0 0 12px rgba(241,203,236,.1);opacity:.2}
@media(prefers-reduced-motion:reduce){.xiaozhi-demo .assistant-bubble::after{opacity:.2!important}}
.work-bubble::after{display:none}
.edge-light{position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;z-index:-1;border:1px solid rgba(248,213,241,.8);box-shadow:0 0 10px rgba(238,182,228,.35),0 0 24px rgba(207,177,230,.19),inset 0 0 12px rgba(241,203,236,.1);opacity:.2}
@media(prefers-reduced-motion:reduce){.edge-light{opacity:.2!important}}
/* Stable translucent glass: no live-video backdrop sampling on the first reply. */
.xiaozhi-demo .first-answer .assistant-bubble{backdrop-filter:none;-webkit-backdrop-filter:none;background:radial-gradient(ellipse at 15% 0%,rgba(224,236,237,.18),transparent 75%),linear-gradient(125deg,rgba(123,142,148,.46),rgba(69,89,99,.34));border-color:rgba(236,215,233,.4);box-shadow:inset 0 1px 0 rgba(255,245,255,.13),0 0 12px rgba(219,180,215,.09),0 5px 18px rgba(14,25,31,.08);isolation:isolate}
.xiaozhi-demo .first-answer .assistant-bubble::before,.xiaozhi-demo .first-answer .assistant-bubble::after{display:none}
/* Reference-sized pill for the conversation entry. */
.xiaozhi-demo .demo-input{min-height:60px;padding:17px 23px;font-size:16px;font-weight:550;line-height:1.5;border-radius:999px;background:linear-gradient(120deg,rgba(213,223,229,.36),rgba(180,195,206,.32));border:0;box-shadow:inset 0 1px 0 rgba(255,255,255,.06);gap:18px}
.xiaozhi-demo .demo-input svg{width:25px;height:25px;stroke-width:1.5}
@media(max-width:700px){.xiaozhi-demo .demo-input{min-height:56px;padding:15px 20px;font-size:14px}.xiaozhi-demo .demo-input svg{width:24px;height:24px}}
.media-scene{position:absolute;inset:0;opacity:1;transition:opacity .7s ease}.desktop-scene{opacity:0}.hero[data-device="desktop"] .mobile-scene{opacity:0}.hero[data-device="desktop"] .desktop-scene{opacity:1}
.device-switch{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);z-index:5;display:flex;align-items:center;padding:5px;border-radius:18px;border:1px solid #ffffff30;background:#16211edb;box-shadow:0 8px 30px #0003;gap:5px}
.device-switch button{display:flex;align-items:center;gap:10px;background:transparent;color:#e5ede9;border-radius:13px;padding:11px 19px;font-size:14px;white-space:nowrap;min-height:48px}.device-switch svg{width:22px;height:22px}.device-switch small{display:block;font-size:11px;color:#bac9c1;margin-top:3px;text-align:left}.device-switch button[aria-pressed="true"]:not(.scene-pause){background:#e8f4ed;color:#12291f}.device-switch button[aria-pressed="true"] small{color:#476052}.device-switch .scene-pause{font-size:12px;padding:10px}.desktop-demo{position:absolute;right:3.5%;top:19%;width:clamp(390px,32vw,535px);z-index:3;background:#f9f8fef2;color:#222435;border:1px solid #fff9;border-radius:20px;box-shadow:0 22px 65px #050b1440;opacity:0;transform:translateY(12px);transition:opacity .5s,transform .5s;pointer-events:none;overflow:hidden}.hero[data-device="desktop"] .desktop-demo{opacity:1;transform:none;pointer-events:auto}.hero[data-device="desktop"] .xiaozhi-demo{opacity:0;pointer-events:none}.desktop-demo.scene-hidden{opacity:0!important;pointer-events:none!important}
.workbench-head{display:flex;align-items:center;gap:9px;padding:17px 20px;border-bottom:1px solid #e4e0f2;background:#fff9}.workbench-head img{border-radius:50%}.workbench-head strong{font-size:15px}.workbench-head strong span{font-size:11px;color:#8261d0;font-weight:500;background:#eee8ff;padding:4px 7px;border-radius:10px;margin-left:6px}.workbench-head small{margin-left:auto;font-size:10px;color:#8a839a}.workbench-body{padding:18px 20px}.desktop-question{margin-left:35px;padding:11px 15px;background:#eee8fd;border-radius:14px 14px 4px 14px;font-size:14px;line-height:1.6}.desktop-reply{padding:16px 0}.desktop-author{font-size:12px;font-weight:650;color:#7853cb}.desktop-reply p{font-size:14px;line-height:1.7;margin:7px 0 11px}.diagnosis{display:flex;gap:10px}.diagnosis>span{flex:1;background:#fff;border:1px solid #e6e2ed;border-radius:10px;padding:10px;font-size:11px;color:#716d7e}.diagnosis b{display:block;margin-top:5px;font-size:18px;color:#373243}.desktop-result{margin-top:15px;font-size:13px;position:relative}.desktop-processing{position:absolute;top:30px;color:#81728f;transition:opacity .3s}.desktop-delivery{opacity:0;transform:translateY(7px);transition:opacity .4s,transform .4s;margin-top:9px}.desktop-result.complete .desktop-delivery{opacity:1;transform:none}.desktop-result.complete .desktop-processing{opacity:0}.task-line{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid #e9e4ef}.task-line i{font-style:normal;font-size:10px;background:#eee7fb;color:#7853a6;border-radius:5px;padding:4px}.desktop-delivery small{display:block;margin-top:10px;color:#918997;font-size:10px}.workbench-composer{margin:0 20px 18px;padding:12px 14px;border:1px solid #e1d9ef;background:#fff;border-radius:13px;color:#a198b0;font-size:12px;display:flex;align-items:center;justify-content:space-between}.workbench-composer span{border-radius:50%;background:#8765df;color:#fff;padding:3px 7px}
@media(max-width:1100px) and (min-width:701px){.desktop-demo{width:345px;right:2%;top:22%}.workbench-body{padding:14px}.desktop-question,.desktop-reply p{font-size:12px}.task-line{font-size:11px}.copy{padding-bottom:140px}}
@media(max-width:700px){.device-switch{position:relative;left:auto;bottom:auto;transform:none;margin:24px auto;width:max-content;max-width:calc(100% - 28px)}.device-switch button{padding:9px 10px;font-size:12px}.device-switch svg{width:18px}.desktop-demo{display:none;position:relative;top:auto;right:auto;width:auto;margin:0 20px 28px}.hero[data-device="desktop"] .desktop-demo{display:block}.hero[data-device="desktop"] .xiaozhi-demo{display:none}.workbench-body{padding:16px}.desktop-question,.desktop-reply p{font-size:13px}.task-line{font-size:12px}}
.desktop-scene::after{content:"";position:absolute;inset:0;pointer-events:none;z-index:3;background:linear-gradient(180deg,rgba(10,18,24,.35),transparent 120px)}
@media(max-width:700px){.desktop-scene .hero-photo,.desktop-scene .hero-interlude{object-position:46% center}}
/* Compact device selector: single-line labels and a quiet selected surface. */
.device-switch{bottom:32px;gap:4px;padding:5px;border-radius:999px;background:rgba(24,32,32,.82);border:1px solid rgba(235,245,239,.24);box-shadow:0 6px 22px rgba(0,10,7,.2),inset 0 1px 0 rgba(255,255,255,.06)}
.device-switch button{min-height:44px;min-width:110px;justify-content:center;gap:9px;padding:10px 19px;border-radius:999px;font-size:14px;font-weight:550;color:#d8e3de;transition:background .25s ease,color .25s ease,box-shadow .25s ease}
.device-switch svg{width:19px;height:19px;flex:none}
.device-switch button[aria-pressed="true"]:not(.scene-pause){background:#e5eee8;color:#173729;box-shadow:0 2px 7px #0002,inset 0 1px 0 #fff9}
@media(hover:hover){.device-switch button[aria-pressed="false"]:hover{background:#ffffff12;color:#f1f6f3}}
.device-switch button:focus-visible{outline:2px solid #a5e9c7;outline-offset:2px}
@media(max-width:700px){.device-switch{bottom:auto;margin:20px auto 28px;padding:5px;gap:4px}.device-switch button{min-height:44px;min-width:108px;padding:10px 18px;font-size:14px}.device-switch svg{width:19px;height:19px}}
/* Selected design: two independent glass buttons, no enclosing capsule. */
.device-switch{bottom:32px;gap:12px;padding:0;background:none;border:0;border-radius:0;box-shadow:none}
.device-switch button{min-height:44px;min-width:112px;padding:10px 19px;gap:9px;border:1px solid rgba(235,240,240,.25);border-radius:9px;background:linear-gradient(135deg,rgba(198,207,210,.17),rgba(138,151,158,.12));color:#b9c3c5;box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 3px 10px rgba(0,0,0,.08);font-size:14px;font-weight:500}
.device-switch button[aria-pressed="true"]:not(.scene-pause){background:linear-gradient(135deg,rgba(221,230,231,.22),rgba(160,174,182,.17));border-color:rgba(245,249,248,.8);color:#f4f7f6;box-shadow:inset 0 1px 0 rgba(255,255,255,.13),0 3px 12px rgba(0,0,0,.12)}
@media(hover:hover){.device-switch button[aria-pressed="false"]:hover{background:rgba(210,223,228,.23);border-color:rgba(245,249,248,.5);color:#eef3f1}}
@media(max-width:700px){.device-switch{bottom:auto;gap:12px;padding:0;margin:20px auto 28px}.device-switch button{min-width:112px;min-height:44px;border-radius:9px;padding:10px 19px}}
/* Stronger contrast against both moving desk backgrounds. */
.device-switch{gap:14px}
.device-switch button{min-width:128px;min-height:48px;padding:12px 21px;font-size:15px;font-weight:600;gap:10px;color:#e1e8e6;background:rgba(21,30,32,.87);border:1px solid rgba(226,239,233,.42);box-shadow:0 4px 15px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,.07)}
.device-switch svg{width:21px;height:21px}
.device-switch button[aria-pressed="true"]:not(.scene-pause){color:#f3fff8;background:rgba(24,61,48,.94);border-color:#9be6bd;box-shadow:inset 0 0 0 1px rgba(155,230,189,.2),0 4px 16px rgba(0,0,0,.2)}
.device-switch button[aria-pressed="true"] svg{color:#b4f2ce}
@media(hover:hover){.device-switch button[aria-pressed="false"]:hover{background:rgba(42,55,56,.95);border-color:#dae9e2;color:#fff}}
@media(max-width:700px){.device-switch{gap:12px}.device-switch button{min-width:124px;min-height:48px;padding:12px 18px;font-size:15px}.device-switch svg{width:21px;height:21px}}
/* PC: one translucent report, with conclusion, evidence and actions. */
.desktop-demo{top:15%;width:clamp(420px,33vw,570px);border-radius:22px;background:linear-gradient(135deg,rgba(62,72,82,.68),rgba(34,45,57,.72));color:#f3f5f8;border:1px solid rgba(226,208,241,.43);box-shadow:inset 0 1px 0 #ffffff1c,0 12px 40px #08101b26;backdrop-filter:none;-webkit-backdrop-filter:none}
.workbench-head{background:none;border-bottom:1px solid #ffffff1c;padding:16px 22px}.workbench-head strong{font-weight:550}.workbench-head strong span{background:#cdb0ef18;color:#e4cef9}.workbench-head small{color:#d2d5df}.workbench-body{padding:17px 22px 21px}
.desktop-question{margin:0;background:#f0f3ff13;border:1px solid #ffffff15;border-radius:12px;padding:11px 13px;color:#f0f1f7;font-size:14px}
.desktop-author{color:#dbc5ef;font-size:11px;letter-spacing:.07em;font-weight:500}.desktop-reply{padding:17px 0 15px}.desktop-reply h2{font-size:21px;line-height:1.4;font-weight:550;margin:7px 0}.desktop-reply p{font-size:13px;color:#d4dae0;line-height:1.65;margin:0 0 13px}.diagnosis{gap:0}.diagnosis>span{border:0;border-right:1px solid #ffffff20;border-radius:0;padding:0 14px;background:none;color:#d4dae0;font-size:11px}.diagnosis>span:first-child{padding-left:0}.diagnosis>span:last-child{border:0;padding-right:0}.diagnosis b{font-size:23px;color:#f2f5f8;font-weight:550;margin-top:6px}.diagnosis em{font-size:11px;font-style:normal;color:#d4c5ed;font-weight:400;margin-left:4px}
.desktop-followup{border-top:1px solid #ffffff24;padding:14px 0 0}.analysis-row{display:grid;grid-template-columns:74px 1fr;gap:12px;margin-top:12px;align-items:start}.analysis-label{font-size:12px;color:#e9e2f3;padding-top:2px}.analysis-row p{font-size:13px;line-height:1.6;margin:0}.analysis-row small{display:block;font-size:11px;color:#bfc9d2;margin-top:3px}
.desktop-result{border-top:1px solid #ffffff24;padding-top:13px;margin-top:15px}.desktop-processing{top:40px;color:#d6c9e4}.task-line{padding:8px 0;border-color:#ffffff12;font-size:12px}.task-line i{background:#ddc3fc16;color:#ead8fb}.desktop-delivery small{color:#c8d2d7}.confirmation-dot{display:inline-block;width:5px;height:5px;background:#afe0c7;border-radius:50%;margin-right:6px}
@media(max-width:1100px) and (min-width:701px){.desktop-demo{width:350px;top:16%;right:2%}.workbench-head{padding:13px 16px}.workbench-head small{font-size:9px}.workbench-body{padding:14px 16px}.desktop-reply h2{font-size:18px}.diagnosis b{font-size:20px}.analysis-row{grid-template-columns:62px 1fr;gap:8px}.analysis-row p{font-size:12px}}
@media(max-width:700px){.desktop-demo{top:auto;width:auto;margin:0 20px 28px}.workbench-head{padding:14px}.workbench-head strong span{font-size:10px}.workbench-head small{font-size:9px}.workbench-body{padding:15px}.desktop-reply h2{font-size:19px}.diagnosis>span{padding:0 10px}.diagnosis b{font-size:21px}.analysis-row{grid-template-columns:63px 1fr;gap:8px}.analysis-row p{font-size:12px}.task-line{font-size:12px}}
/* Identify the desktop seller question with the female scene portrait. */
.desktop-question{display:flex;align-items:center;gap:11px}
.desktop-question p{margin:0;line-height:1.65;flex:1;min-width:0}
.desktop-user-avatar{display:block;width:34px;height:34px;flex:0 0 34px;border-radius:50%;border:1px solid rgba(255,255,255,.4);background-color:#586164;background-image:url('assets/desktop-poster.png');background-repeat:no-repeat;background-size:185px auto;background-position:54% 25%;box-shadow:0 2px 7px #0002}

/* PC answer: evidence and actions grouped by issue. */
.desktop-demo{width:clamp(460px,35vw,600px);top:12%;max-height:80vh;overflow:auto;scrollbar-width:thin;scrollbar-color:#b1bbc555 transparent}
.workbench-head{position:sticky;top:0;z-index:2;background:#35414bec}
.workbench-body{padding:18px 24px 22px}
.desktop-reply{padding:20px 0}
.desktop-reply h2{font-size:23px;margin:8px 0 10px}
.desktop-reply p{font-size:14px;line-height:1.8;color:#e0e5e8}
.desktop-author{font-size:12px;letter-spacing:0;color:#d7cbe5}
.diagnosis{margin-top:16px}.diagnosis>span{font-size:12px}.diagnosis b{font-size:25px}
.diagnosis em{display:block;margin:3px 0 0;font-size:11px;color:#c9d1d6}
.desktop-followup{padding:0;border-top:0}
.finding{padding:18px 0;border-top:1px solid #ffffff24}
.finding h3{margin:0 0 8px;font-size:16px;line-height:1.5;font-weight:600}
.finding>p,.finding-action p{margin:0;font-size:13px;line-height:1.85;color:#dfe5e9}
.finding-action{margin-top:10px;padding:11px 13px;background:#e3eaf20b;border-radius:10px}
.finding-action b{display:block;font-size:12px;font-weight:500;color:#d7c5e9;margin-bottom:4px}
.desktop-result{margin:0;padding-top:16px}
.report-next{font-size:13px;line-height:1.85;margin:0;color:#e6ebed}
.desktop-delivery small{font-size:11px;line-height:1.7}
@media(max-width:1100px) and (min-width:701px){.desktop-demo{width:390px;right:2%;top:12%}.workbench-body{padding:16px}.desktop-reply h2{font-size:20px}}
@media(max-width:700px){.desktop-demo{width:auto;max-height:none;top:auto;overflow:visible}.workbench-head{position:static;border-radius:22px 22px 0 0}.workbench-body{padding:18px}.desktop-reply h2{font-size:21px}}

/* Place the reply author on the right, separate from the seller question. */
.desktop-reply{position:relative;padding-right:46px}
.desktop-answer-identity{position:absolute;right:0;top:20px;display:flex;flex-direction:column;align-items:center;gap:5px;width:36px;color:#edf3f2;font-size:11px;line-height:1.3}
.desktop-answer-identity img{display:block;width:34px;height:34px;object-fit:cover;border-radius:50%;border:1px solid #e8f3ee88;background:#dceae5}
.desktop-followup,.desktop-result{margin-right:46px}
@media(max-width:700px){.desktop-reply{padding-right:42px}.desktop-followup,.desktop-result{margin-right:42px}}

/* One connected answer surface, with Xiaozhi outside on the right. */
.desktop-answer-row{position:relative;margin-top:18px;padding-right:46px}
.desktop-answer-row>.desktop-answer-identity{top:2px}
.desktop-answer-box{padding:18px 17px;border:1px solid rgba(228,221,237,.42);border-radius:17px;background:linear-gradient(130deg,rgba(78,92,101,.62),rgba(42,55,66,.66));box-shadow:inset 0 1px 0 #ffffff12,0 5px 18px #10182014}
.desktop-answer-box .desktop-reply{padding:0 0 18px}
.desktop-answer-box .desktop-followup,.desktop-answer-box .desktop-result{margin-right:0}
.desktop-answer-box .desktop-reply h2{font-size:21px}
@media(max-width:700px){.desktop-answer-row{padding-right:40px}.desktop-answer-box{padding:15px 13px}.desktop-answer-box .desktop-reply h2{font-size:19px}}

/* Two purposeful turns; content appears in reading order. */
.desktop-conversation .pc-beat[hidden]{display:none!important}
.desktop-conversation .desktop-question{max-width:92%;margin-right:auto}
.desktop-conversation .desktop-answer-row{margin-left:18px}
.desktop-conversation .desktop-answer-box h2{font-size:20px;line-height:1.5;margin:8px 0 12px}
.desktop-conversation .desktop-answer-box p{font-size:14px;line-height:1.85;color:#e1e7eb;margin:0}
.desktop-conversation .desktop-answer-box strong{font-weight:600;color:#f4f6f8}
.pc-detail{padding-top:16px;margin-top:16px;border-top:1px solid #ffffff20}
.pc-detail h3{font-size:15px;line-height:1.6;margin:0 0 7px}
.pc-caveat{display:block;font-size:12px;line-height:1.8;color:#c7d1d9;margin-top:13px}
.pc-followup{margin-top:24px}
.desktop-demo{scroll-padding-top:80px}
@media(max-width:700px){.desktop-conversation .desktop-answer-row{margin-left:0}.desktop-conversation .desktop-answer-box p{font-size:13px}}

/* Reference treatment: neutral glass interior, soft pink-lilac outline only. */
.desktop-conversation .desktop-answer-box{
 border-color:rgba(232,198,225,.72);
 box-shadow:inset 0 1px 0 rgba(255,240,253,.13),0 0 10px rgba(224,175,215,.16),0 5px 18px rgba(20,25,33,.12);
}

/* User-selected handwritten wordmark, preserving the supplied artwork. */
.header .brand{flex:0 0 auto}
.brand-wordmark{display:block;width:clamp(192px,14.4vw,241px);height:auto;object-fit:contain;mix-blend-mode:normal}
@media(max-width:700px){.brand-wordmark{width:160px}}

/* Fine-tune logo position without shifting navigation. */
.header .brand{transform:translateX(-10px)}

/* Three distinct PC stories, sharing the approved conversation surface. */
.desktop-demo .workbench-head{display:flex;flex-wrap:wrap;gap:10px; background:rgba(47,59,69,.98)}
.workbench-head>small{margin-left:auto}
.pc-case-tabs{display:flex;gap:7px;flex-basis:100%;padding-top:2px}
.pc-case-tabs button{flex:1;min-height:34px;border-radius:8px;padding:7px 10px;background:transparent;border:1px solid #ffffff22;color:#d8dfe5;font-size:12px;transition:background .18s,border-color .18s}
.pc-case-tabs button[aria-pressed="true"]{background:#d5c4e923;border-color:#ddc3e888;color:#f5effa}
.pc-case-tabs button:hover{background:#ffffff14}
.pc-product{display:flex;align-items:center;gap:12px;padding:10px 0}
.pc-product img{width:52px;height:65px;object-fit:contain;background:#e4e9e81a;border-radius:8px;flex-shrink:0}
.pc-product strong{display:block;font-size:13px;line-height:1.5}
.pc-product span{display:block;color:#c7d1d9;font-size:11px;line-height:1.8}
.desktop-question>div{min-width:0}
.pc-submit-track{display:flex;gap:8px;margin:12px 0;flex-wrap:wrap}
.pc-submit-track span{font-size:11px;color:#d5e9df;border:1px solid #bddbd233;border-radius:6px;padding:5px 9px}
.pc-published{margin-bottom:12px}.pc-status{display:inline-block;background:#9be9ba18;color:#b9f0cd;border-radius:5px;padding:4px 8px;font-size:11px}
.pc-research-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin:10px 0 14px}
.pc-research-metrics>span{font-size:10px;line-height:1.6;color:#c9d3dd;border-right:1px solid #ffffff22}
.pc-research-metrics>span:last-child{border:0}
.pc-research-metrics strong{display:block;font-size:20px;font-weight:550;margin-top:5px}
.desktop-conversation>.pc-followup:first-child{margin-top:0}
@media(max-width:700px){.pc-case-tabs{gap:5px}.pc-case-tabs button{padding:8px 4px;min-height:40px}.pc-research-metrics{gap:5px}.pc-research-metrics strong{font-size:16px}}

/* Upload progress stays within the approved glass answer. */
.pc-upload [hidden]{display:none!important}
.pc-upload-loading{padding:17px 0 8px}
.pc-upload-star{display:block;color:#e5d3eb;font-size:23px;margin-bottom:16px}
.desktop-conversation .pc-upload-label{font-size:16px;line-height:1.6}
.pc-upload-meter{height:2px;background:#e0e8e426;border-radius:2px;margin:23px 0 12px;overflow:hidden}
.pc-upload-meter>span{display:block;width:100%;height:100%;background:linear-gradient(90deg,#d6e5df,#ead6eb);transform:scaleX(0);transform-origin:left center;will-change:transform}
.pc-upload-meta{display:flex;justify-content:space-between;gap:12px;font-size:11px;color:#d4dfdc;line-height:1.6}
.pc-upload-check{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#b7edcf1c;color:#c5f3dc;border:1px solid #b7edcf55;font-size:19px;margin:14px 0}
.pc-upload-success .pc-published{margin-top:12px}

/* Research subject and concise verdict. */
.pc-product-verdict{display:flex;align-items:center;gap:15px;margin:15px 0 16px}
.pc-product-verdict>img{width:84px;height:112px;object-fit:contain;flex:0 0 84px;padding:8px;background:rgba(231,237,234,.12);border:1px solid #ffffff25;border-radius:12px}
.pc-product-verdict>div{min-width:0}
.pc-verdict-label{display:block;color:#c1ead5;font-size:11px;line-height:1.6;margin-bottom:6px}
.pc-product-verdict strong{display:block;font-size:15px;margin-bottom:7px}
.desktop-conversation .pc-product-verdict p{font-size:12px;line-height:1.8}
.desktop-conversation .pc-verdict-reasons p{font-size:13px;margin-top:9px}
@media(max-width:700px){.pc-product-verdict{gap:10px}.pc-product-verdict>img{width:65px;height:94px;flex-basis:65px}}

/* Soft navigation scrim maintains contrast over the moving footage. */
.header{
 background:linear-gradient(180deg,rgba(7,12,12,.62) 0%,rgba(7,12,12,.38) 65%,rgba(7,12,12,0) 100%);
}
.header nav button,.header .login{
 color:#f7faf8;
 text-shadow:0 1px 4px rgba(0,0,0,.48);
}

/* Arrow-free navigation with a shared, smoothly moving selection surface. */
.header .smooth-nav{position:relative;isolation:isolate;gap:12px;padding:5px}
.header .smooth-nav button{position:relative;z-index:1;padding:10px 17px;border-radius:10px;transition:color .2s}
.nav-highlight{position:absolute;left:0;top:5px;height:calc(100% - 10px);width:0;border-radius:10px;background:rgba(224,235,230,.12);border:1px solid rgba(233,242,238,.22);box-shadow:inset 0 1px 0 #ffffff0c;pointer-events:none;opacity:0;transform:translateX(0);transition:transform .3s cubic-bezier(.22,.8,.25,1),width .3s cubic-bezier(.22,.8,.25,1),opacity .18s}
.smooth-nav button[aria-pressed="true"]{color:#c4f4df}
@media(max-width:1000px){.header .smooth-nav{gap:4px}.header .smooth-nav button{padding:10px 12px}}
@media(max-width:700px){.header .smooth-nav{gap:0;padding:5px 0}.header .smooth-nav button{padding:10px 12px;min-height:40px}}
@media(prefers-reduced-motion:reduce){.nav-highlight,.header .smooth-nav button{transition:none}}

/* Give desktop navigation a more relaxed, even rhythm. */
.header .smooth-nav{gap:clamp(18px,2.1vw,36px)}
.header .smooth-nav button{padding:11px 18px}
@media(max-width:1100px){.header .smooth-nav{gap:12px}.header .smooth-nav button{padding:10px 13px}}
@media(max-width:700px){.header .smooth-nav{gap:0;justify-content:space-between}.header .smooth-nav button{padding:10px 12px}}

/* One neutral login action, distinct from the green hero CTA. */
.account .account-login{background:#e9eeec;color:#172b23;border:1px solid rgba(255,255,255,.65);min-width:112px;box-shadow:0 3px 12px rgba(0,0,0,.12)}
.account .account-login:hover{background:#f5f8f6}
@media(max-width:700px){.account .account-login{min-width:88px}}

/* A light stationary caption above an independently scrolling conversation. */
.desktop-demo{overflow:hidden}
.desktop-demo .workbench-head{position:relative;top:auto;min-height:44px;padding:14px 23px 10px;border:0;background:linear-gradient(180deg,rgba(165,184,190,.06),transparent);box-shadow:none;gap:8px}
.desktop-demo .workbench-head strong{font-size:12px;font-weight:500;letter-spacing:.04em;color:#e1e8eb}
.desktop-demo .workbench-head small{font-size:9px;color:#bdc9cf}
.desktop-demo .desktop-conversation{max-height:calc(80vh - 48px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#c4d1d340 transparent;padding-top:18px;-webkit-mask-image:linear-gradient(to bottom,transparent,black 16px);mask-image:linear-gradient(to bottom,transparent,black 16px)}
@media(max-width:700px){.desktop-demo .workbench-head{padding:14px 18px 8px}.desktop-demo .desktop-conversation{max-height:65svh}}

/* The promise stays unchanged; hierarchy emphasizes the AI team. */
.copy{position:relative;isolation:isolate}
.copy::before{content:"";position:absolute;z-index:-1;pointer-events:none;left:-12%;top:8%;width:96%;height:88%;background:radial-gradient(ellipse at 28% 48%,rgba(6,13,10,.34),rgba(6,13,10,.12) 48%,transparent 73%)}
.copy h1{line-height:1.2;letter-spacing:-.02em}
.headline-lead{display:block;font-size:.9em;font-weight:600;line-height:1.3;color:#eef2ef}
.headline-focus{display:block;margin-top:.2em;font-size:1em;font-weight:750;line-height:1.2;color:#fafcfb;letter-spacing:0}
.headline-ai{color:#53edb4}
@media(max-width:700px){.headline-focus{margin-top:.22em}.copy::before{left:-8%;width:108%;top:0;height:100%}}

/* Stronger headline hierarchy: quiet introduction, dominant AI team. */
.copy .headline-lead{font-size:.675em;font-weight:500;line-height:1.4;letter-spacing:.005em;color:#e2e9e5}
.copy .headline-focus{font-size:1.2em;font-weight:750;margin-top:.32em;line-height:1.16;letter-spacing:-.025em}
.copy h1{margin-bottom:38px}
.copy .description{max-width:430px;font-size:clamp(14px,1.05vw,18px);line-height:1.85;color:#c7d1cb}
@media(max-width:700px){.copy .headline-lead{font-size:.75em}.copy .headline-focus{font-size:1.13em;margin-top:.3em}.copy h1{margin-bottom:28px}.copy .description{max-width:330px;font-size:14px}}

/* Four compact capability labels replace the descriptive paragraph. */
.hero-features{list-style:none;display:flex;align-items:center;flex-wrap:wrap;gap:18px 22px;margin:0;padding:0;max-width:580px}
.hero-features li{display:flex;align-items:center;gap:9px;color:#d4dcd7;font-size:14px;font-weight:550;line-height:1.4;white-space:nowrap}
.feature-icon{display:grid;place-items:center;flex:none;width:32px;height:32px;border-radius:10px;background:rgba(133,198,174,.12);color:#57dfbd;box-shadow:inset 0 1px 0 #d1fff10a}
.feature-icon svg{width:21px;height:21px}
@media(max-width:1100px){.hero-features{max-width:470px;gap:16px}.hero-features li{font-size:13px;gap:7px}.feature-icon{width:29px;height:29px}}
@media(max-width:700px){.hero-features{display:grid;grid-template-columns:repeat(2,max-content);column-gap:28px;row-gap:15px}.hero-features li{font-size:14px}.feature-icon{width:30px;height:30px}}

/* Unified editorial headline: one continuous promise, not separate text blocks. */
.copy .eyebrow{font-size:clamp(13px,1vw,17px);font-weight:500;letter-spacing:.055em;color:#cbd8d1;margin-bottom:23px}
.copy h1{font-size:clamp(44px,3.55vw,68px);line-height:1.22;letter-spacing:-.025em;margin-bottom:30px}
.copy .headline-lead{font-size:1em;font-weight:700;line-height:1.24;letter-spacing:-.025em;color:#f0f4f1}
.copy .headline-focus{font-size:1.07em;font-weight:700;line-height:1.2;letter-spacing:-.025em;margin-top:.055em;color:#f0f4f1}
.copy .headline-ai{color:#69e8bd}
.copy .headline-team{color:#f3f5f4;font-weight:700}
@media(max-width:1000px) and (min-width:701px){.copy h1{font-size:42px}}
@media(max-width:700px){.copy .eyebrow{font-size:13px;letter-spacing:.04em;margin-bottom:20px}.copy h1{font-size:clamp(30px,8.5vw,43px);margin-bottom:27px}.copy .headline-lead{font-size:1em}.copy .headline-focus{font-size:1.07em;margin-top:.055em}}

/* Lower the left hero group slightly and increase headline presence. */
.copy .eyebrow{display:flex;align-items:center;gap:17px;letter-spacing:0;font-size:23px;line-height:1.4}
.eyebrow-brand{display:inline-flex;align-items:center;justify-content:center;padding:4px 13px;border-radius:6px;background:#9befbe;color:#092218;font-family:Arial,Inter,sans-serif;font-size:28px;font-weight:700;line-height:1.15;letter-spacing:-.5px;flex-shrink:0}
.eyebrow-description{color:#f1f5f2;font-weight:500;letter-spacing:.04em;white-space:nowrap;text-shadow:0 1px 3px rgba(0,0,0,.35)}
@media(max-width:700px){.copy .eyebrow{gap:13px;font-size:18px}.eyebrow-brand{font-size:24px;padding:4px 11px}}
@media(min-width:1001px){
 .copy{padding-top:calc(clamp(90px,13.3vh,170px) + 40px)}
 .copy h1{font-size:clamp(47.5px,3.861vw,74.1px)}
}
@media(min-width:1600px){.copy{padding-top:calc(14vh + 40px)}}
@media(min-width:701px) and (max-width:1000px){.copy{padding-top:calc(15vh + 36px)}.copy h1{font-size:44.65px}}
@media(max-width:700px){.copy{padding-top:calc(clamp(60px,11vh,110px) + 16px)}.copy h1{font-size:clamp(30.4px,8.55vw,43.7px)}}

/* Readable capability labels with consistent spacing. */
.hero-features{gap:18px 24px}
.hero-features li{font-size:15px;gap:9px}
@media(max-width:1100px){.hero-features{gap:16px 24px}.hero-features li{font-size:14px}}
@media(max-width:700px){.hero-features{column-gap:28px;row-gap:15px}}

/* Enlarge the complete hero copy group without scaling or blurring text. */
@media(min-width:1001px){
 .copy h1{font-size:clamp(54px,4.4vw,84px);margin-bottom:35px}
 .copy .eyebrow{font-size:25px;gap:19px;margin-bottom:27px}
 .eyebrow-brand{font-size:31px;padding:5px 14px}
 .hero-features{max-width:650px;gap:20px 26px}
 .hero-features li{font-size:17px;gap:10px}
 .feature-icon{width:35px;height:35px}
 .feature-icon svg{width:23px;height:23px}
 .copy .actions{margin-top:48px;gap:22px}
 .copy .actions .button{font-size:20px;min-height:64px;min-width:212px;padding:18px 30px}
}
@media(min-width:701px) and (max-width:1000px){.copy h1{font-size:50px}.hero-features li{font-size:16px}.copy .actions .button{font-size:18px}}
@media(max-width:700px){.copy h1{font-size:clamp(32px,9.3vw,48px)}.copy .eyebrow{font-size:19px}.eyebrow-brand{font-size:26px}.hero-features li{font-size:15px}.copy .actions .button{font-size:15px;min-height:53px}}

/* Compact mint brand badge. */
.copy .eyebrow{font-size:21px;gap:14px}
.copy .eyebrow-brand{font-size:26px;padding:4px 11px}
@media(max-width:700px){.copy .eyebrow{font-size:17px;gap:11px}.copy .eyebrow-brand{font-size:22px;padding:3px 9px}}

/* Character-by-character reveal keeps the complete headline geometry. */
@media(prefers-reduced-motion:no-preference){
 #headline .type-char{animation:hero-type-char 50ms steps(1,start) var(--type-delay) both}
 #headline.typing-ready>.headline-focus{transform-origin:left center;animation:hero-type-emphasis 650ms ease-out var(--type-finish) both}
}
@keyframes hero-type-char{from{opacity:0}to{opacity:1}}
@keyframes hero-type-emphasis{0%{transform:scale(1)}45%{transform:scale(1.018)}100%{transform:scale(1)}}


/* Independent white demo canvas below the photographic hero. */
.product-showcase{background:#f6f8f7;color:#182c24;padding:90px 4% 100px;scroll-margin-top:0}
.showcase-inner{max-width:1320px;margin:auto}
.showcase-eyebrow{text-align:center;color:#54806b;font-size:14px;letter-spacing:.1em;margin:0 0 14px}
.product-showcase h2{text-align:center;font-size:clamp(28px,2.8vw,44px);font-weight:650;letter-spacing:-.035em;margin:0 0 36px}
.showcase-tabs{display:flex;justify-content:center;gap:8px;margin:0 auto 28px;width:fit-content;padding:6px;border:1px solid #dee6e1;border-radius:999px;background:#edf1ee}
.showcase-tabs button{position:relative;color:#627069;background:transparent;padding:13px 28px;border-radius:999px;font-size:16px;font-weight:600;transition:background .2s,color .2s,box-shadow .2s}
.showcase-tabs button[aria-selected="true"]{background:#fff;color:#123d2a;box-shadow:0 2px 8px #18362612}
.showcase-tabs button:hover{color:#173e2a}
.showcase-stage{background:#fff;border:1px solid #e0e7e2;border-radius:24px;box-shadow:0 14px 50px #163c2106;overflow:hidden}
.showcase-stage [role="tabpanel"]{min-height:clamp(380px,38vw,600px);padding:26px 30px}
.showcase-stage [hidden]{display:none}
.panel-caption{font-size:13px;color:#7d8982;letter-spacing:.03em}
@media(prefers-reduced-motion:no-preference){.showcase-stage [role="tabpanel"]:not([hidden]){animation:showcase-reveal 220ms ease-out}}
@keyframes showcase-reveal{from{opacity:.25}to{opacity:1}}
@media(max-width:700px){.product-showcase{padding:60px 20px}.product-showcase h2{font-size:27px;margin-bottom:26px}.showcase-tabs{gap:2px;padding:4px;max-width:100%}.showcase-tabs button{font-size:14px;padding:12px 16px}.showcase-stage{border-radius:18px}.showcase-stage [role="tabpanel"]{padding:22px;min-height:420px}}

/* Subtle bottom-right scroll cue; device switch remains untouched. */
.hero-explore{position:absolute;right:3.8%;bottom:27px;z-index:5;display:flex;align-items:center;gap:12px;min-height:44px;padding:8px 0;color:#edf5f0;font-size:13px;font-weight:500;letter-spacing:.07em;text-shadow:0 1px 5px #07150ecc;opacity:.88;transition:opacity .25s}
.hero-explore svg{width:20px;height:28px;flex:none}
.hero-explore.is-dismissed{opacity:0;pointer-events:none;visibility:hidden}
@media(hover:hover){.hero-explore:hover{opacity:1;color:#aff3d4}}
@media(prefers-reduced-motion:no-preference){.hero-explore svg{animation:explore-nudge 3.2s ease-in-out infinite}}
@keyframes explore-nudge{0%,65%,100%{transform:translateY(0)}80%{transform:translateY(5px)}}
@media(max-width:700px){.hero-explore{right:22px;bottom:86px;font-size:12px}}



/* Downward cue stays within the existing outlined action. */
@media(prefers-reduced-motion:no-preference){.explore-demo-button svg{animation:demo-arrow-hint 3.6s ease-in-out infinite}}
@keyframes demo-arrow-hint{0%,65%,100%{transform:translateY(0)}80%{transform:translateY(4px)}}

/* Simple secondary action with one outline and a quiet directional cue. */
.copy .actions .explore-demo-button{padding:17px 27px;gap:19px;min-height:64px;background:rgba(10,28,20,.18);border:1.5px solid #b6efd2;box-shadow:0 0 0 3px rgba(158,237,197,.07),0 3px 16px rgba(113,222,168,.09),inset 0 1px 0 rgba(236,255,245,.12);transition:border-color .25s,background .25s,box-shadow .25s}
.copy .actions .explore-button-label{font-size:18px;line-height:1.4;font-weight:600}
.copy .actions .explore-button-icon{display:grid;place-items:center;width:22px;height:26px;flex:none;background:none;border:0;border-radius:0;color:#eff7f2}
.copy .actions .explore-button-icon svg{width:21px;height:24px}
@media(hover:hover){.copy .actions .explore-demo-button:hover{transform:none;background:rgba(100,194,146,.12);border-color:#d1ffe6;box-shadow:0 0 0 3px rgba(158,237,197,.12),0 4px 20px rgba(113,222,168,.14)}}
.copy .actions .explore-demo-button:active{transform:translateY(1px)}
@media(prefers-reduced-motion:no-preference){.explore-demo-button .explore-button-icon svg{animation:explore-button-nudge 3s ease-in-out infinite}}
@keyframes explore-button-nudge{0%,55%,100%{transform:translateY(0)}75%{transform:translateY(4px)}}
@media(max-width:700px){.copy .actions .explore-demo-button{min-height:53px;padding:13px 20px;gap:12px}.copy .actions .explore-button-label{font-size:15px}}
@media(prefers-reduced-motion:reduce){.copy .actions .explore-demo-button{transition:none}}

/* Selected double-chevron direction with a single clean outer border. */
.copy .actions .explore-demo-button{border:1.5px solid rgba(239,249,243,.9);background:rgba(12,23,17,.16);box-shadow:none;gap:22px;padding:16px 25px;min-height:64px}
.copy .actions .explore-button-label{font-size:18px;font-weight:500;letter-spacing:.025em}
.copy .actions .explore-button-icon{width:25px;height:28px;color:#edf8f1}
.copy .actions .explore-button-icon svg{width:24px;height:28px;animation:none}
@media(hover:hover){.copy .actions .explore-demo-button:hover{background:rgba(173,232,199,.09);border-color:#baf3d4;box-shadow:none}}
@media(prefers-reduced-motion:no-preference){.explore-demo-button .explore-button-icon path{animation:explore-chevron-flow 2.8s ease-in-out infinite}.explore-demo-button .explore-button-icon path:nth-child(2){animation-delay:.16s}}
@keyframes explore-chevron-flow{0%,45%,100%{transform:translateY(0);opacity:1}70%{transform:translateY(3px);opacity:.45}}
@media(max-width:700px){.copy .actions .explore-demo-button{padding:12px 18px;gap:12px;min-height:53px}.copy .actions .explore-button-label{font-size:15px}.copy .actions .explore-button-icon svg{width:20px;height:24px}}

/* Seller pain-point canvas: readable center, slow staggered horizontal streams. */
.seller-pains{position:relative;isolation:isolate;background:#090b0a;color:#f1f5f2;min-height:max(780px,100svh);height:100svh;max-height:none;overflow:hidden}
.pain-stream{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-around;padding:36px 0}
.pain-lane{width:100%;position:relative}
.pain-track{display:flex;width:max-content;animation:pain-drift var(--duration) linear var(--offset) infinite;will-change:transform}
.pain-group{display:flex;align-items:center;gap:60px;padding-right:60px;flex-shrink:0}
.pain-chip{display:block;white-space:nowrap;padding:17px 24px;border-radius:12px;border:1px solid #ffffff0b;background:#ffffff04;color:#c7cec9;font-size:clamp(17px,1.45vw,23px);font-weight:400;letter-spacing:.015em}
.lane-1 .pain-track,.lane-4 .pain-track{animation-direction:reverse}
.lane-1 .pain-chip,.lane-4 .pain-chip{background:transparent;border-color:transparent;color:#7b857e;font-size:clamp(15px,1.2vw,20px)}
.lane-2 .pain-chip,.lane-3 .pain-chip{color:#9ba69e}
.pain-center{position:absolute;z-index:2;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none;text-align:center}
.pain-center:before{content:'';position:absolute;z-index:-1;left:50%;top:50%;transform:translate(-50%,-50%);width:min(1050px,95vw);height:440px;background:radial-gradient(ellipse,#090b0a 35%,rgba(9,11,10,.97) 48%,rgba(9,11,10,.65) 65%,transparent 76%)}
.pain-center p{font-size:14px;letter-spacing:.18em;color:#8d9d93;margin:0 0 24px}
.pain-center h2{font-size:clamp(38px,4.4vw,76px);font-weight:650;line-height:1.3;letter-spacing:-.035em;margin:0}
.pain-scene-note{position:absolute;bottom:22px;right:4%;color:#69736c;font-size:11px;letter-spacing:.06em}
.seller-pains.is-offscreen .pain-track{animation-play-state:paused}
@keyframes pain-drift{from{transform:translate3d(0,0,0)}to{transform:translate3d(-50%,0,0)}}
@media(max-width:700px){.seller-pains{min-height:max(650px,100svh);height:100svh}.pain-group{gap:30px;padding-right:30px}.pain-chip{font-size:16px;padding:13px 18px}.pain-center h2{font-size:clamp(34px,8vw,48px)}.pain-center:before{width:125vw;height:320px}.pain-center p{font-size:12px;margin-bottom:20px}}
@media(prefers-reduced-motion:reduce){.pain-track{animation:none;will-change:auto}.lane-1 .pain-track,.lane-3 .pain-track{transform:translateX(-180px)}}



/* Pain section refinement: readable voices, restrained white center question. */
.seller-pains{background:#101412}
.pain-chip{color:#dce3de;background:rgba(255,255,255,.025);border-color:rgba(255,255,255,.085)}
.lane-1 .pain-chip,.lane-4 .pain-chip{color:#aebbb2}
.lane-2 .pain-chip,.lane-3 .pain-chip{color:#c7d2ca}
.pain-center h2{font-size:clamp(36px,3.85vw,66px);font-weight:600;line-height:1.32;color:#f1f5f2}
.pain-center p{color:#8e9e94;font-size:12px;letter-spacing:.12em;margin-bottom:19px}
.pain-center:before{width:min(880px,92vw);height:350px;background:radial-gradient(ellipse,#101412 28%,rgba(16,20,18,.94) 45%,rgba(16,20,18,.38) 66%,transparent 78%)}
@media(max-width:700px){.pain-center h2{font-size:clamp(32px,7.7vw,42px)}.pain-center:before{width:118vw;height:285px}.pain-center p{font-size:11px}}

/* Clip each moving row independently; static edge fades avoid a full-screen moving mask. */
.pain-lane{overflow:hidden;contain:layout paint}
.pain-track{backface-visibility:hidden}
.pain-stream:before,.pain-stream:after{content:'';position:absolute;z-index:1;top:0;bottom:0;width:7%;pointer-events:none}
.pain-stream:before{left:0;background:linear-gradient(90deg,#101412,transparent)}
.pain-stream:after{right:0;background:linear-gradient(270deg,#101412,transparent)}

/* Reference direction: green-black atmosphere, three surrounding message bands. */
.seller-pains{background:#030d0b;isolation:isolate}
.pain-atmosphere{position:absolute;inset:0;overflow:hidden;z-index:-1;pointer-events:none;background:radial-gradient(ellipse at 55% 115%,#154d3e88,transparent 40%)}
.pain-arc{position:absolute;display:block;border-radius:50%;background:#030d0b;border-top:1px solid #8dfce1;box-shadow:0 -8px 28px #36e8b74d,0 -28px 75px #26c69730}
.arc-one{width:80%;height:85%;left:22%;top:-67%;transform:rotate(-32deg)}
.arc-two{width:62%;height:75%;left:-41%;top:55%;transform:rotate(-30deg)}
.arc-three{width:73%;height:70%;right:-47%;top:-9%;transform:rotate(146deg)}
.pain-stream{display:block;padding:0;z-index:1}
.pain-lane{position:absolute;left:0}
.pain-lane.lane-0{top:12%}.pain-lane.lane-1{top:23%}.pain-lane.lane-5{top:79%}
.pain-lane.lane-2,.pain-lane.lane-3,.pain-lane.lane-4{display:none}
.pain-group{gap:44px;padding-right:44px}
.pain-chip,.lane-1 .pain-chip{font-size:clamp(16px,1.2vw,21px);font-weight:500;padding:17px 25px;border-radius:999px;background:linear-gradient(180deg,#ffffff09,#ffffff03);border:1px solid #ffffff06;color:#e5eee9}
.lane-0 .pain-chip:nth-child(3n+1),.lane-5 .pain-chip:nth-child(3n+2){border-color:#02cc90;background:linear-gradient(110deg,#00b97d33,#003e2914);box-shadow:inset 0 0 20px #00cc7c15,0 0 18px #00c88515}
.pain-stream:before{background:linear-gradient(90deg,#030d0b,transparent)}
.pain-stream:after{background:linear-gradient(270deg,#030d0b,transparent)}
.pain-center{z-index:2;justify-content:flex-start;padding-top:35.5%;padding-top:35.5vh;inset:0;transform:none}
.pain-center:before{display:none}
.pain-center p{font-size:clamp(12px,1.05vw,18px);letter-spacing:.18em;color:#d4ddd8;margin:0 0 20px}
.pain-center h2{font-size:clamp(36px,3.65vw,64px);font-weight:700;line-height:1.25;letter-spacing:-.025em;color:#f1f5f3}
.pain-center h2 span{color:#00dfb0}
.pain-accent{display:block;width:64px;height:5px;border-radius:4px;background:#08e3b5;margin:28px 0 30px}
.pain-description{color:#bfcac4;font-size:clamp(15px,1.25vw,22px);line-height:1.6}
@media(max-width:700px){.seller-pains{min-height:max(720px,100svh)}.pain-lane.lane-0{top:9%}.pain-lane.lane-1{top:19%}.pain-lane.lane-5{top:83%}.pain-center{padding:0 20px;justify-content:center}.pain-center h2{font-size:clamp(28px,6.9vw,44px)}.pain-center p{font-size:10px;margin-bottom:18px}.pain-accent{margin:22px 0;width:48px;height:4px}.pain-description{font-size:13px;max-width:350px}.pain-chip,.lane-1 .pain-chip{font-size:15px;padding:14px 20px}.arc-two{left:-55%;width:85%}.arc-three{right:-60%;width:95%}}

/* Updated reference: four message bands and soft lateral crescents. */
.pain-lane.lane-0{top:6%}.pain-lane.lane-1{top:19%}.pain-lane.lane-4{display:block;top:72%}.pain-lane.lane-5{top:85%}
.lane-4 .pain-chip{font-size:clamp(16px,1.2vw,21px);font-weight:500;padding:17px 25px;border-radius:999px;background:linear-gradient(180deg,#ffffff09,#ffffff03);border:1px solid #ffffff06;color:#e5eee9}
.pain-chip,.lane-1 .pain-chip,.lane-4 .pain-chip{background:linear-gradient(180deg,rgba(210,239,221,.07),rgba(164,206,182,.018));box-shadow:inset 0 1px 0 rgba(225,250,237,.075),inset 0 -1px 0 rgba(225,250,237,.035)}
.lane-0 .pain-chip:nth-child(3n+1),.lane-5 .pain-chip:nth-child(3n+2){box-shadow:inset 0 0 20px #00cc7c15,0 0 18px #00c88515}
.pain-center{padding-top:32.5vh}
.pain-center p{font-family:Arial,sans-serif;font-size:16px;margin-bottom:18px}
.pain-center h2{font-size:clamp(36px,3.85vw,66px);line-height:1.22}
.pain-accent{margin:25px 0 24px}
.pain-description{font-size:clamp(15px,1.18vw,20px);line-height:1.55}
.pain-atmosphere{background:radial-gradient(ellipse at 30% 4%,#06413238,transparent 28%),#030d0b}
.pain-arc{border:0;box-shadow:none;background:none}
.arc-one{display:none}
.arc-two{width:650px;height:430px;left:-270px;top:57%;transform:rotate(-28deg);border-top:1px solid #5de3bb88;background:linear-gradient(180deg,#075b4140,transparent 25%);box-shadow:0 -16px 45px #0bc18f25;mask-image:linear-gradient(90deg,transparent,#000 35%,#000 60%,transparent)}
.arc-three{width:880px;height:460px;right:-390px;top:0;transform:rotate(-25deg);border-bottom:1px solid #91fdd6aa;background:linear-gradient(0deg,#078f6550,transparent 30%);box-shadow:0 16px 50px #0bd69d33;mask-image:linear-gradient(90deg,transparent,#000 40%,#000 70%,transparent)}
@media(max-width:700px){.pain-lane.lane-0{top:5%}.pain-lane.lane-1{top:16%}.pain-lane.lane-4{top:76%}.pain-lane.lane-5{top:87%}.pain-center{padding:0 20px}.pain-center p{font-size:10px}.pain-center h2{font-size:clamp(28px,6.9vw,44px)}.pain-description{font-size:13px}.lane-4 .pain-chip{font-size:15px;padding:14px 20px}.arc-two{left:-470px}.arc-three{right:-680px}}
/* Local preview size editor; preserves the existing composition at 100%. */
.pain-size-content{display:flex;flex-direction:column;align-items:center;transform:scale(var(--copy-scale,1));transform-origin:center center;width:100%}
.pain-size-editor{position:absolute;z-index:5;right:24px;bottom:20px;width:260px;border:1px solid #88cdbd40;border-radius:14px;background:#11231feb;color:#eaf5ef;box-shadow:0 8px 30px #00150d55;font:13px/1.5 Arial,sans-serif;text-align:left}
.pain-size-editor summary{padding:12px 16px;cursor:pointer;list-style:none;font-weight:600}
.pain-size-editor summary:after{content:'−';float:right;color:#6eeac1}.pain-size-editor:not([open]) summary:after{content:'+'}
.pain-size-controls{padding:0 16px 12px}.pain-size-controls label{display:flex;justify-content:space-between;color:#b7cfc5}.pain-size-controls output{color:#7ce7c3;font-variant-numeric:tabular-nums}
.pain-size-controls input{width:100%;height:32px;margin:4px 0;accent-color:#62dfb5;cursor:ew-resize}
.pain-size-footer{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#a8beb4}.pain-size-footer button{border:0;background:none;color:#d7f5e9;padding:8px 0 8px 8px;cursor:pointer;font:inherit}
.pain-size-editor :focus-visible{outline:2px solid #82f1cb;outline-offset:3px}.pain-size-footer button:active{transform:translateY(1px)}
@media(hover:hover){.pain-size-editor summary:hover,.pain-size-footer button:hover{color:#70efbf}}
@media(max-width:700px){.pain-size-editor{right:12px;bottom:8px;width:230px}.pain-size-content{max-width:100%}}
/* Reference green light ribbons: static paint, separate from moving message rows. */
.pain-atmosphere{z-index:0;background:radial-gradient(ellipse at 71% 113%,rgba(21,155,112,.25),transparent 30%),#030d0b}
.pain-arc{border:0;box-shadow:none;background:none;mask-image:none;border-radius:50%}
.arc-one{display:block;width:80%;height:95%;left:22%;top:-79%;transform:rotate(-34deg);border-bottom:2px solid rgba(161,255,222,.8);background:linear-gradient(0deg,rgba(33,180,131,.22),transparent 18%);box-shadow:0 8px 16px rgba(70,255,185,.18),0 24px 65px rgba(19,217,147,.2);mask-image:linear-gradient(90deg,transparent 8%,#000 32%,#000 58%,transparent 76%)}
.arc-two{width:48%;height:51%;left:-19%;top:55%;transform:rotate(-30deg);border-top:2px solid rgba(173,255,226,.95);background:linear-gradient(180deg,rgba(19,140,99,.24),transparent 18%);box-shadow:0 -5px 12px rgba(105,255,203,.32),0 -22px 55px rgba(26,224,156,.24);mask-image:linear-gradient(90deg,transparent 12%,#000 38%,#000 59%,transparent 83%)}
.arc-three{width:60%;height:62%;right:-24%;top:-1%;transform:rotate(-32deg);border-bottom:2px solid rgba(166,255,223,.95);background:linear-gradient(0deg,rgba(16,171,119,.27),transparent 24%);box-shadow:0 6px 15px rgba(77,255,191,.3),0 24px 65px rgba(20,223,153,.24);mask-image:linear-gradient(90deg,transparent 8%,#000 36%,#000 65%,transparent 87%)}
@media(max-width:700px){.arc-one{width:130%;left:8%;top:-78%}.arc-two{width:100%;left:-75%;top:55%;opacity:.7}.arc-three{width:130%;right:-95%;top:0;opacity:.7}}
/* Soft luminous bands use one cached vector layer; no animated blur filters. */
.pain-atmosphere{background:url('assets/pain-green-ribbons.svg') center/100% 100% no-repeat,radial-gradient(ellipse at 71% 113%,rgba(21,155,112,.25),transparent 30%),#030d0b}
.pain-atmosphere .pain-arc{display:none}
.pain-atmosphere{background-image:url("data:image/svg+xml;base64,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"),radial-gradient(ellipse at 71% 113%,rgba(21,155,112,.25),transparent 30%)}
/* Uniform seller-message pills, without green featured outlines. */
.lane-0 .pain-chip:nth-child(3n+1),.lane-5 .pain-chip:nth-child(3n+2){border-color:#ffffff06;background:linear-gradient(180deg,rgba(210,239,221,.07),rgba(164,206,182,.018));box-shadow:inset 0 1px 0 rgba(225,250,237,.075),inset 0 -1px 0 rgba(225,250,237,.035)}

/* Approved editorial study: two quiet rows, one headline, one light arc. */
.pain-atmosphere{background:#030d0b}
.pain-editorial-light{width:100%;height:100%;display:block;opacity:.85}
.pain-lane.lane-1,.pain-lane.lane-2,.pain-lane.lane-3,.pain-lane.lane-4{display:none}
.pain-lane.lane-0{top:6.5%}.pain-lane.lane-5{top:auto;bottom:6.5%}
.pain-center{padding:0 40px;justify-content:center}
.pain-center h2{font-size:clamp(44px,6.2vw,112px);font-weight:700;line-height:1.3;letter-spacing:-.035em;margin:0}
.pain-description{margin-top:40px;font-size:clamp(18px,2.15vw,36px);line-height:1.65;color:#aab5b0}
.pain-chip,.lane-0 .pain-chip,.lane-5 .pain-chip{font-size:clamp(17px,1.4vw,24px);padding:20px 30px}
.pain-size-editor{width:240px;bottom:12px;right:16px}
@media(max-width:700px){.pain-center{padding:0 18px}.pain-center h2{font-size:clamp(28px,7.4vw,50px);line-height:1.4;letter-spacing:-.04em}.pain-description{max-width:285px;margin-top:26px;font-size:16px;line-height:1.8}.pain-lane.lane-0{top:9%}.pain-lane.lane-5{top:auto;bottom:12%}.pain-chip,.lane-0 .pain-chip,.lane-5 .pain-chip{font-size:15px;padding:15px 22px}.pain-editorial-light{opacity:.45}.pain-size-editor{bottom:8px}}
@media(max-width:700px){.pain-description{text-wrap:balance;max-width:280px}}

/* Smaller central copy; preserve the surrounding message lanes. */
@media(min-width:701px){.pain-center h2{font-size:clamp(36px,4.3vw,76px);line-height:1.3}.pain-description{font-size:clamp(16px,1.5vw,24px);margin-top:26px}.pain-size-content{transform:none}.pain-chip,.lane-0 .pain-chip,.lane-5 .pain-chip{font-size:clamp(15px,1.12vw,19px);padding:15px 24px}.pain-group{gap:35px;padding-right:35px}}
/* First line stays centered; second line begins at that same left edge. */
.pain-center h2{width:max-content;max-width:100%;letter-spacing:.015em;line-height:1.45}
.pain-center h2 .pain-title-second{display:block;width:0;min-width:100%;white-space:nowrap;text-align:left;color:inherit}
/* Full-screen second section with natural document scrolling. */
.seller-pains{height:100svh;min-height:100svh;max-height:100svh}
@media(max-height:650px) and (min-width:701px){.pain-center h2{font-size:clamp(38px,9vh,70px)}.pain-description{margin-top:22px;font-size:clamp(16px,3vh,23px)}.pain-chip,.lane-0 .pain-chip,.lane-5 .pain-chip{padding:12px 24px;font-size:17px}}

/* Blend away the last strip of the hero during the natural section transition. */
html,body{background:#030d0b}
.hero{opacity:var(--hero-exit-opacity,1)}

/* Fade only the artwork into the shared section background, not the content. */
.pain-editorial-light{-webkit-mask-image:linear-gradient(to bottom,transparent 0%,#000 14%,#000 72%,transparent 100%);mask-image:linear-gradient(to bottom,transparent 0%,#000 14%,#000 72%,transparent 100%)}

/* The next chapter opens with one centered statement below the demonstrations. */
.bossai-more{display:grid;place-items:center;min-height:420px;padding:128px 24px 152px;background:#030d0b;color:#edf2eb;text-align:center}
.bossai-more h2{margin:0;font-family:Inter,'PingFang SC','Microsoft YaHei',Arial,sans-serif;font-size:42px;font-weight:400;line-height:1.5;letter-spacing:.015em}
.bossai-more h2 span{display:inline-block}
@media(max-width:600px){.bossai-more{min-height:320px;padding:90px 20px 110px}.bossai-more h2{font-size:27px;line-height:1.7;letter-spacing:0}}

/* Global navigation stays above all chapters without shifting the hero layout. */
.site-header{position:fixed;inset:0 0 auto;z-index:1000;width:100%;border-bottom:1px solid transparent;background:linear-gradient(180deg,#030d0b38,transparent);transition:background .25s,border-color .25s,box-shadow .25s}
.site-header.is-scrolled{background:#030d0bed;border-bottom-color:#b7d6c226;box-shadow:0 5px 20px #0002;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.site-header-spacer{height:var(--site-header-height,85px);pointer-events:none}
html:has(.site-header){scroll-padding-top:calc(var(--site-header-height,85px) + 12px)}
@media(prefers-reduced-motion:reduce){.site-header{transition:none}}

/* No header seam over the opening image; the separator belongs to the scrolled state. */
.site-header:not(.is-scrolled){background:transparent;border-bottom-color:transparent;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none}
.site-header.is-scrolled{border-bottom-color:#b7d6c226}

/* Product navigation disclosure: five plain-language entries. */
.product-nav-item{position:relative;z-index:5;display:flex;align-items:center}
.product-nav-menu{position:absolute;left:0;top:calc(100% + 13px);width:440px;padding:10px;border:1px solid #a9d2b938;border-radius:18px;background:#091b14f7;box-shadow:0 18px 50px #0005;opacity:0;visibility:hidden;transform:translateY(-5px);transition:opacity .18s,transform .2s,visibility .18s;pointer-events:none}
.product-nav-item.is-open .product-nav-menu{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.product-nav-menu:before{content:'';position:absolute;left:0;right:0;top:-16px;height:17px}
.header .smooth-nav .product-menu-link{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;padding:17px 18px;margin:0;border:0;border-radius:10px;background:transparent;color:#e9f4ed;text-align:left;white-space:normal;text-shadow:none;cursor:pointer}
.product-menu-link>span{display:block}.product-menu-link strong{display:block;font-size:18px;line-height:1.5;font-weight:500;letter-spacing:0}.product-menu-link small{display:block;font-size:13px;line-height:1.7;font-weight:400;color:#8fae9a;margin-top:4px}.product-menu-link i{font-style:normal;color:#90caaa;font-size:20px;opacity:0;transition:opacity .15s}
.header .smooth-nav .product-menu-link:hover,.header .smooth-nav .product-menu-link:focus-visible{background:#91e8bc12;color:#a5efc6}.product-menu-link:hover i,.product-menu-link:focus-visible i{opacity:1}
@media(max-width:42.5em){.product-nav-item{position:static}.product-nav-menu{position:fixed;left:16px;right:16px;top:calc(var(--site-header-height,128px) + 8px);width:auto;max-height:calc(100svh - var(--site-header-height,128px) - 24px);overflow-y:auto;padding:8px;border-radius:14px}.header .smooth-nav .product-menu-link{padding:14px}.product-menu-link strong{font-size:16px}.product-menu-link small{font-size:12px}.product-menu-link i{opacity:.7}}
@media(prefers-reduced-motion:reduce){.product-nav-menu,.product-menu-link i{transition:none}}

/* Neutral black product menu, without green tint. */
.product-nav-menu{background:#101111fa;border-color:#ffffff26;box-shadow:0 18px 50px #0007}
.header .smooth-nav .product-menu-link{color:#f0f0f0}
.product-menu-link small{color:#a5aaa7}
.product-menu-link i{color:#d4d8d5}
.header .smooth-nav .product-menu-link:hover,.header .smooth-nav .product-menu-link:focus-visible{background:#ffffff0d;color:#fff}
.product-menu-link:focus-visible{outline-color:#cbd0cd}

/* Model catalog shares the neutral black navigation surface. */
.model-nav-menu{width:650px;padding:18px}
.model-menu-columns{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.model-menu-group{min-width:0}.model-menu-group h3{font-size:12px;font-weight:400;letter-spacing:.04em;color:#808785;margin:0 0 10px;padding:0 14px}
.header .smooth-nav .model-menu-link{padding:12px 14px;min-height:70px}.model-menu-link strong{font-size:16px}.model-menu-link small{font-size:12px;color:#929a96;margin-top:3px}
.model-menu-note{border-top:1px solid #ffffff15;padding:13px 14px 0;margin:10px 0 0;font-size:11px;line-height:1.7;color:#777f7b}
.model-info-dialog{padding:32px;border:1px solid #ffffff29;border-radius:18px;background:#151817;color:#eef3ef;width:min(460px,calc(100vw - 32px));font-family:Inter,'Microsoft YaHei',sans-serif;box-shadow:0 20px 70px #0006}.model-info-dialog::backdrop{background:#0307068c;backdrop-filter:blur(4px)}.model-info-category{font-size:12px;color:#8d9991;margin:0 0 15px}.model-info-dialog h2{font-size:27px;font-weight:500;line-height:1.4;margin:0 0 14px}.model-info-description{font-size:15px;line-height:1.8;color:#c4d0c7;margin:0 0 22px}.model-info-dialog .model-info-status{font-size:12px;line-height:1.8;color:#85928a;margin:0 0 20px}.model-info-source{color:#c4d4c9;text-decoration:underline;text-underline-offset:4px;font-size:13px}.model-info-close{position:absolute;right:12px;top:10px;width:32px;height:32px;border:0;border-radius:50%;background:transparent;color:#b7c2ba;font:25px/1 Arial;cursor:pointer}
@media(max-width:42.5em){.model-nav-menu{width:auto;padding:13px}.model-menu-columns{gap:5px}.header .smooth-nav .model-menu-link{padding:11px 10px;min-height:72px}.model-menu-link strong{font-size:14px}.model-menu-link small{font-size:11px;line-height:1.6}.model-menu-group h3{padding-left:10px;font-size:11px}.model-menu-note{font-size:10px;padding-left:10px}}

@media(min-width:42.501em){.model-nav-menu{left:-120px}}

/* Compact PC conversation: conclusion first, optional supporting analysis. */
@media(min-width:43.751em){.desktop-demo{width:clamp(390px,31vw,530px);max-height:68vh}.desktop-demo .desktop-conversation{max-height:calc(68vh - 48px)}}
.desktop-demo .desktop-conversation{padding:14px 18px 18px}
.desktop-conversation .desktop-answer-box{padding:15px 16px}
.desktop-conversation .desktop-answer-box h2{font-size:19px;margin:6px 0 9px}
.desktop-conversation .desktop-answer-box p{font-size:13px;line-height:1.75}
.pc-answer-fold{margin-top:13px;border-top:1px solid #ffffff1c}
.pc-answer-fold summary{display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;list-style:none;padding:12px 0 0;color:#e0d1ef;font-size:12px;line-height:1.5;user-select:none}
.pc-answer-fold summary::-webkit-details-marker{display:none}
.pc-answer-fold summary:focus-visible{outline:2px solid #d5c2e7;outline-offset:4px;border-radius:3px}
.pc-fold-close{display:none}.pc-answer-fold[open] .pc-fold-open{display:none}.pc-answer-fold[open] .pc-fold-close{display:inline}
.pc-fold-icon{font-size:18px;line-height:1;transition:transform .18s}.pc-answer-fold[open] .pc-fold-icon{transform:rotate(45deg)}
.pc-answer-fold .pc-detail{margin-top:12px;padding-top:12px}.pc-answer-fold .pc-detail h3{font-size:14px}
@media(prefers-reduced-motion:reduce){.pc-fold-icon{transition:none}}

.desktop-question p.is-pc-typing::after{content:'';display:inline-block;width:1px;height:1em;margin-left:3px;background:currentColor;vertical-align:-.12em;animation:pc-input-caret .7s step-end infinite}
@keyframes pc-input-caret{50%{opacity:0}}
@media(prefers-reduced-motion:reduce){.desktop-question p.is-pc-typing::after{animation:none}}

/* Product attachment inside the merchant message. */
.desktop-question:has(.pc-product){align-items:flex-start}
.desktop-question:has(.pc-product)>div{flex:1}
.desktop-question .pc-product{margin-top:12px;padding:12px;gap:12px;border:1px solid #ffffff1c;border-radius:12px;background:#17212b45;box-shadow:inset 0 1px 0 #ffffff06}
.desktop-question .pc-product img{width:48px;height:60px;padding:5px;background:#edf2eeeb;border-radius:8px}
.desktop-question .pc-product>div{min-width:0}
.desktop-question .pc-product strong{font-size:13px;line-height:1.55;font-weight:550;color:#f2f5f7;margin-bottom:3px}
.desktop-question .pc-product span{font-size:11px;line-height:1.65;color:#c5cfd5}
.desktop-question .pc-product .pc-attachment-meta{display:flex;align-items:center;gap:5px;font-size:10px;color:#9eafb9;margin-top:6px}
.desktop-question .pc-attachment-meta::before{content:'';width:8px;height:10px;border:1px solid currentColor;border-radius:2px;opacity:.8;flex:none}