/* ============ 数字伴侣 · Design System ============ */
:root{
  --bg:#ffffff;
  --gray:#f5f5f7;
  --gray2:#f0f0f2;
  --ink:#1d1d1f;
  --ink2:#1a1a1a;
  --muted:#86868b;
  --muted2:#9b9b9b;
  --muted3:#6e6e73;
  --line:#e5e5e7;
  --dark:#1a1a1a;
  --link:#0066cc;
  --grad:linear-gradient(135deg,#7b5bff 0%,#4d8bff 100%);
  --maxw:1180px;
  --radius:24px;
  --radius-sm:14px;
  --shadow:0 20px 60px rgba(0,0,0,.06);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}

.container{max-width:var(--maxw);margin:0 auto;padding:0 40px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--dark);color:#fff;font-weight:700;font-size:16px;
  padding:15px 34px;border:none;border-radius:999px;transition:transform .15s ease,opacity .15s ease;
}
.btn:hover{transform:translateY(-1px);opacity:.9}
.btn--lg{font-size:20px;padding:18px 44px}
.btn-link{color:var(--link);font-size:17px;font-weight:500}
.btn-link:hover{text-decoration:underline}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:100;background:var(--gray);border-bottom:1px solid rgba(0,0,0,.04)}
.nav{display:flex;align-items:center;height:100px;gap:32px}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:600;color:var(--ink2)}
.logo-mark{width:40px;height:24px}
.nav-links{display:flex;align-items:center;gap:12px;margin:0 auto}
.nav-links a{font-size:16px;font-weight:700;color:var(--ink2);padding:10px 20px;border-radius:999px;transition:background .15s}
.nav-links a:hover{background:rgba(0,0,0,.05)}
.nav-links a.active{background:var(--dark);color:#fff}
.nav-icons{display:flex;align-items:center;gap:20px;color:var(--ink2)}
.nav-icons svg{width:20px;height:20px}

/* ---------- Sections ---------- */
.section{padding:120px 0}
.section--gray{background:var(--gray)}
.section--tight{padding:90px 0}
.eyebrow{font-size:28px;font-weight:600;color:var(--muted3);text-align:center;margin-bottom:14px}
.eyebrow--sm{font-size:24px}
h1,h2{letter-spacing:-.01em;line-height:1.15}
.h1{font-size:64px;font-weight:600;color:var(--ink);text-align:center}
.h2{font-size:56px;font-weight:600;color:var(--ink);text-align:center}
.h2--sm{font-size:48px}
.lead{font-size:22px;font-weight:400;color:var(--muted2);text-align:center;max-width:820px;margin:22px auto 0;line-height:1.55}
.lead--dark{color:var(--muted)}
.center{text-align:center}
.mt-btn{margin-top:40px;display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,#ffffff 0%,#f5f5f7 100%);padding:80px 0 0;text-align:center;overflow:hidden}
.hero .lead{white-space:pre-line}
.hero-visual{margin-top:56px;display:flex;justify-content:center}
.hero-visual img{max-height:640px;width:auto}

/* ---------- Cards ---------- */
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:48px}
.grid{display:grid;gap:24px}

/* ---------- Home: agent showcase ---------- */
.showcase-img{margin:56px auto 0;max-width:1060px}

/* ---------- Theme (想起来/帮我想/替我做) ---------- */
.theme-visual{margin:56px auto 40px;max-width:1060px}
.theme-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;max-width:1060px;margin:0 auto}
.theme-cols p{font-size:17px;font-weight:600;color:var(--ink);line-height:1.6}
.theme-foot{text-align:center;font-size:28px;font-weight:600;color:var(--muted3);margin-top:56px}

/* ---------- Home feature cards ---------- */
.feature-card{background:var(--gray);border-radius:var(--radius);padding:60px 48px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:24px}
.feature-card h3{font-size:56px;font-weight:600;color:var(--ink)}
.feature-card .fc-sub{font-size:15.7px;color:var(--ink);max-width:560px;opacity:.8}
.feature-card img{max-height:300px;width:auto}
.brand-loop{width:64px;height:40px}

/* ---------- Product: capability grid ---------- */
.cap-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto auto;gap:20px;max-width:900px;margin:56px auto 0;position:relative}
.cap-cell{background:var(--gray);border-radius:20px;padding:34px 40px}
.cap-cell h4{font-size:24px;font-weight:700;margin-bottom:10px}
.cap-cell span{font-size:16px;color:var(--muted)}
.cap-center{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--dark);color:#fff;border-radius:20px;width:220px;height:130px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:22px;font-weight:700;line-height:1.3;white-space:pre-line;box-shadow:0 10px 40px rgba(0,0,0,.25)}

/* ---------- Product memory block ---------- */
.mem-visual{margin:56px auto 0;max-width:1060px}
.mem-visual img{border-radius:var(--radius)}

/* ---------- Features: AI labels ---------- */
.feat-hero-wrap{display:flex;justify-content:center;align-items:center;gap:60px;flex-wrap:wrap;margin-top:56px}
.feat-hero-wrap img{max-height:560px;width:auto}
.ai-labels{display:flex;flex-direction:column;gap:22px}
.ai-labels li{list-style:none;display:flex;align-items:center;gap:14px;font-size:20px;color:rgba(0,0,0,.9)}
.ai-labels .check{width:24px;height:24px;flex:none}

/* ---------- Features: flow stepper ---------- */
.flow{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:56px 40px;max-width:1060px;margin:56px auto 0}
.flow .step{display:inline-flex;align-items:center;background:var(--gray);color:var(--ink);font-size:18px;font-weight:700;padding:14px 22px;border-radius:12px;white-space:nowrap}
.flow .step.active{background:var(--dark);color:#fff}
.flow .arrow{color:var(--muted);font-size:28px;font-weight:700;line-height:1}

/* ---------- Features: dark judgment card ---------- */
.dark-card{background:var(--dark);color:#fff;border-radius:var(--radius);padding:70px;display:flex;align-items:center;gap:60px;max-width:1060px;margin:0 auto}
.dark-card .dc-text{flex:1}
.dark-card h3{font-size:44px;font-weight:700;line-height:1.25;margin-bottom:22px}
.dark-card p{font-size:20px;color:#b6bbc3;line-height:1.6;max-width:520px}
.mini-phone{width:200px;flex:none;background:#0d0d0d;border:2px solid #2a2a2c;border-radius:26px;padding:16px 14px}
.mini-phone .mp-title{font-size:11px;color:#8a8a8e;margin-bottom:12px}
.mini-phone .bubble{background:#f2f2f4;color:#1d1d1f;font-size:9px;border-radius:10px;padding:9px 11px;margin-bottom:8px;line-height:1.4}
.mini-phone .bubble.tag{background:#e9f7ee;color:#2f9e56}

/* ---------- Download badges ---------- */
.store-badges{display:flex;flex-direction:column;gap:16px}
.badge{display:inline-flex;align-items:center;gap:12px;background:#000;color:#fff;border-radius:12px;padding:10px 18px;min-width:200px}
.badge svg{width:26px;height:26px;flex:none}
.badge .b-top{font-size:10px;opacity:.85;line-height:1.1}
.badge .b-bot{font-size:19px;font-weight:600;line-height:1.15}
.badge img{height:52px;width:auto}
.dl-hero-wrap{display:flex;justify-content:center;align-items:center;gap:64px;flex-wrap:wrap;margin-top:48px}
.dl-hero-wrap img.phone{max-height:560px;width:auto}
.dl-actions{display:flex;flex-direction:column;gap:22px;align-items:flex-start}
.store-badges-img img{width:260px;height:auto}

/* ---------- Contact form ---------- */
.contact-card{background:#fff;border-radius:32px;box-shadow:var(--shadow);display:grid;grid-template-columns:1fr 1.25fr;gap:0;overflow:hidden;max-width:1180px;margin:0 auto}
.cc-left{padding:70px 56px}
.cc-left .tag{font-size:16px;font-weight:700;color:var(--ink2)}
.cc-left h2{font-size:48px;font-weight:700;text-align:left;margin:14px 0 26px}
.cc-left p{font-size:16px;color:var(--ink2);line-height:1.75;max-width:340px}
.cc-people{display:flex;align-items:center;gap:10px;margin-top:60px}
.cc-people .avs{display:flex}
.cc-people .avs span{width:44px;height:44px;border-radius:50%;background:#d9d9de center/cover;border:2px solid #fff;margin-left:-10px;overflow:hidden}
.cc-people .avs span:first-child{margin-left:0}
.cc-people .dot{width:12px;height:12px;border-radius:50%;background:#3ea34a;margin-left:6px}
.cc-people small{display:block;font-size:16px;color:var(--ink2);margin-top:14px;font-weight:300}
.cc-left .reply{font-size:16px;color:var(--ink2);font-weight:300;margin-top:14px}
.cc-right{background:var(--gray);padding:60px 56px}
.cc-right form{display:flex;flex-direction:column;gap:18px}
.field{position:relative}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:20px 22px;font-size:16px;font-family:inherit;color:var(--ink2);
}
.field select{appearance:none;color:var(--muted);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14'%3E%3Cpath d='M3 5l4 4 4-4' stroke='%231a1a1a' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 22px center}
.field textarea{min-height:130px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#1a1a1a}
.cc-right .btn{align-self:flex-start;margin-top:6px}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:56px 0 70px}
.foot-social{display:flex;justify-content:center;gap:16px;margin-bottom:40px}
.foot-social a{width:40px;height:40px;border-radius:50%;background:var(--gray);display:flex;align-items:center;justify-content:center;color:var(--muted3);transition:background .15s}
.foot-social a:hover{background:#e8e8ec}
.foot-social svg{width:18px;height:18px}
.foot-row{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:20px}
.foot-copy{font-size:15px;color:var(--muted)}
.foot-links{display:flex;flex-wrap:wrap;gap:30px}
.foot-links a{font-size:15px;color:var(--muted)}
.foot-links a:hover{color:var(--ink)}
.foot-beian{margin-top:28px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:center;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted3)}
.foot-beian a{color:var(--muted3)}
.foot-beian a:hover{color:var(--ink)}
.foot-company{margin-top:10px;display:flex;justify-content:center;flex-wrap:wrap;gap:6px 28px;font-size:13px;color:var(--muted3)}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .container{padding:0 22px}
  .section{padding:72px 0}
  .h1{font-size:40px}.h2{font-size:34px}.h2--sm{font-size:30px}
  .eyebrow{font-size:22px}.lead{font-size:18px}
  .nav-links{display:none}
  .nav{height:72px}
  .theme-cols{grid-template-columns:1fr;gap:22px}
  .cap-grid{grid-template-columns:1fr;max-width:420px}
  .cap-center{position:static;transform:none;width:100%;height:auto;padding:26px;margin:0 auto}
  .contact-card{grid-template-columns:1fr}
  .cc-left,.cc-right{padding:40px 28px}
  .cc-left h2{font-size:34px}
  .dark-card{flex-direction:column;padding:44px;text-align:center}
  .dark-card h3{font-size:30px}
  .dark-card p{margin:0 auto}
  .feat-hero-wrap,.dl-hero-wrap{gap:32px}
  .flow{padding:34px 20px}
  .foot-row{flex-direction:column;align-items:flex-start}
}

/* ============ 2026 visual refresh ============ */
:root{
  --bg:#f7f8fc;--gray:#f0f2f8;--ink:#151622;--muted:#676b7e;
  --purple:#6c55f8;--purple-dark:#4f39dc;--blue:#4c8dff;
  --grad:linear-gradient(135deg,#7657ff 0%,#516eff 52%,#4aa8ff 100%);
  --shadow:0 16px 45px rgba(43,36,93,.09);--radius:32px;
}
body{min-width:320px;background:var(--bg);color:var(--ink)}
body.menu-open{overflow:hidden}
.container{width:min(100%,1180px);padding-inline:32px}

/* navigation */
.site-header{background:rgba(247,248,252,.84);border-bottom:1px solid rgba(255,255,255,.75);backdrop-filter:blur(20px) saturate(1.5)}
.nav{height:78px;gap:24px}.brand{font-size:19px;font-weight:760;letter-spacing:-.02em}.logo-mark{width:38px}
.nav-links{gap:4px}.nav-links a{padding:9px 16px;color:#515467;font-size:15px;font-weight:650;transition:.2s ease}
.nav-links a:hover{color:var(--ink);background:rgba(255,255,255,.85)}
.nav-links a.active{color:var(--purple-dark);background:#ebe8ff}
.nav-download{padding:10px 18px;color:#fff;background:var(--ink);border-radius:999px;font-size:14px;font-weight:720;transition:.2s ease}
.nav-download:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
.menu-toggle{display:none;position:relative;width:42px;height:42px;margin-left:auto;border:0;border-radius:50%;background:#fff}
.menu-toggle span{position:absolute;left:12px;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.25s ease}
.menu-toggle span:first-child{top:16px}.menu-toggle span:last-child{top:24px}
.menu-toggle[aria-expanded="true"] span:first-child{top:20px;transform:rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:last-child{top:20px;transform:rotate(-45deg)}

/* typography and actions */
h1,h2,h3,h4{letter-spacing:-.045em}.h1{font-size:clamp(46px,6vw,78px);font-weight:760}.h2{font-size:clamp(38px,4.6vw,62px);font-weight:740}.h2--sm{font-size:clamp(34px,4vw,52px)}
.lead{font-size:clamp(18px,2vw,22px);line-height:1.75;color:var(--muted)}
.eyebrow{margin-bottom:20px;font-size:14px}.eyebrow span,.eyebrow--sm{display:inline-flex;width:auto;padding:7px 13px;color:var(--purple-dark);background:#ebe8ff;border:1px solid rgba(108,85,248,.12);border-radius:999px;font-size:14px;font-weight:760;letter-spacing:.08em}
.eyebrow--sm{margin:0 auto 18px}.btn{min-height:50px;padding:13px 28px;font-size:15px;font-weight:740;box-shadow:0 12px 28px rgba(21,22,34,.14);transition:.2s ease}
.btn:hover{transform:translateY(-2px);box-shadow:0 18px 35px rgba(21,22,34,.18)}.btn--lg{min-height:58px;padding-inline:36px;font-size:17px}.btn-link{color:var(--purple-dark);font-weight:720}

/* hero and section rhythm */
.section{padding:112px 0}.section--gray{background:var(--gray)}
.hero{position:relative;padding:88px 0 0;background:radial-gradient(circle at 50% 13%,rgba(112,91,255,.15),transparent 31%),linear-gradient(180deg,#fafaff 0%,#f4f5fa 100%)}
.hero:before,.hero:after{content:"";position:absolute;width:380px;height:380px;border-radius:50%;pointer-events:none}
.hero:before{left:-250px;top:180px;background:rgba(93,150,255,.08)}.hero:after{right:-250px;top:40px;background:rgba(119,82,255,.09)}
.hero .container{position:relative;z-index:1}.hero-visual{margin-top:58px}.hero-visual img{width:auto;height:auto;max-width:min(100%,960px);max-height:640px;object-fit:contain;object-position:center bottom;filter:drop-shadow(0 28px 38px rgba(30,30,55,.12))}

/* home */
.trust-strip{color:#fff;background:var(--ink)}.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);padding-block:30px}
.trust-grid>div{display:flex;flex-direction:column;gap:2px;padding:4px 34px;border-right:1px solid rgba(255,255,255,.13)}.trust-grid>div:last-child{border-right:0}
.trust-grid strong{font-size:17px}.trust-grid span{color:rgba(255,255,255,.6);font-size:13px}
.showcase-img,.theme-visual,.mem-visual{width:100%;max-width:1080px;border-radius:var(--radius);box-shadow:var(--shadow)}
.theme-cols{gap:16px;counter-reset:idea}.theme-cols p{position:relative;padding:28px;color:#45485a;background:#fff;border:1px solid rgba(21,22,34,.09);border-radius:22px;font-size:16px;font-weight:580;box-shadow:var(--shadow);counter-increment:idea}
.theme-cols p:before{content:"0" counter(idea);display:block;margin-bottom:14px;color:var(--purple);font-size:13px;font-weight:800;letter-spacing:.1em}.theme-foot{font-size:24px;color:var(--muted)}
.feature-card{position:relative;min-height:620px;padding:58px 42px;overflow:hidden;background:#fff;border:1px solid rgba(21,22,34,.09);box-shadow:var(--shadow)}
.feature-card:after{content:"";position:absolute;inset:auto -15% -30% 20%;height:55%;background:radial-gradient(circle,rgba(108,85,248,.12),transparent 64%);pointer-events:none}.feature-card>*{position:relative;z-index:1}
.feature-card h3{font-size:clamp(36px,4vw,54px);font-weight:740}.feature-card .fc-sub{color:var(--muted)}

/* product and feature pages */
.cap-grid{gap:18px}.cap-cell{min-height:150px;background:#fff;border:1px solid rgba(21,22,34,.09);border-radius:24px}.cap-center{background:var(--grad);border:8px solid var(--gray);border-radius:28px;box-shadow:0 22px 50px rgba(77,57,220,.28)}
.feat-hero-wrap{gap:clamp(32px,7vw,90px)}.feat-hero-wrap img{width:auto;height:auto;max-width:min(50%,410px);max-height:620px;filter:drop-shadow(0 26px 40px rgba(25,25,45,.14))}
.ai-labels li{min-width:250px;padding:18px 22px;background:rgba(255,255,255,.88);border:1px solid rgba(21,22,34,.09);border-radius:18px;box-shadow:var(--shadow);font-size:17px;font-weight:680}
.flow{border:1px solid rgba(21,22,34,.09);box-shadow:var(--shadow)}.flow .step{font-size:14px}.flow .step.active{background:var(--grad)}
.dark-card{background:radial-gradient(circle at 85% 20%,rgba(117,87,255,.35),transparent 32%),#171723;box-shadow:0 32px 90px rgba(48,42,104,.16)}

/* Android download */
.download-hero{padding-bottom:92px}.dl-hero-wrap{display:grid;grid-template-columns:minmax(260px,460px) minmax(360px,510px);gap:clamp(36px,8vw,100px);text-align:left}
.dl-hero-wrap img.phone{width:auto;height:auto;max-width:min(100%,390px);max-height:620px;filter:drop-shadow(0 28px 45px rgba(24,24,45,.16))}.dl-actions{width:100%}
.download-card{display:grid;grid-template-columns:54px 1fr;gap:4px 17px;padding:26px;background:rgba(255,255,255,.88);border:1px solid rgba(255,255,255,.92);border-radius:28px;box-shadow:0 32px 90px rgba(48,42,104,.16);backdrop-filter:blur(15px)}
.platform-icon{display:grid;grid-row:span 2;place-items:center;width:54px;height:54px;color:#fff;background:var(--grad);border-radius:17px}.platform-icon svg{width:31px;height:31px;fill:currentColor}
.download-copy{display:flex;flex-direction:column;align-self:center}.download-kicker{color:var(--purple);font-size:10px;font-weight:820;letter-spacing:.14em}.download-copy strong{font-size:22px;letter-spacing:-.02em}.download-meta{color:var(--muted);font-size:13px}
.btn--download{grid-column:1/-1;width:100%;margin-top:18px;background:var(--grad)}.btn--download svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.btn--download.is-loading{pointer-events:none;opacity:.7}
.download-tip{grid-column:1/-1;margin-top:8px;color:var(--muted);font-size:12px;text-align:center}.download-tip.is-error{color:#c33c52}
.ios-note{display:flex;align-items:center;gap:14px;padding:18px 22px;background:rgba(255,255,255,.55);border:1px solid rgba(21,22,34,.09);border-radius:22px}.ios-mark{display:grid;place-items:center;width:42px;height:42px;background:#fff;border-radius:13px;font-size:12px;font-weight:800;letter-spacing:-.02em}.ios-note>span:last-child{display:flex;flex-direction:column}.ios-note strong{font-size:15px}.ios-note small{color:var(--muted);font-size:12px}
.install-note{padding:48px 0;color:#fff;background:var(--ink)}.install-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.install-grid>div{padding:14px 28px;border-right:1px solid rgba(255,255,255,.12)}.install-grid>div:last-child{border-right:0}.install-grid span{display:block;margin-bottom:8px;color:#9082ff;font-size:12px;font-weight:800;letter-spacing:.1em}.install-grid strong{font-size:17px}.install-grid p{margin-top:3px;color:rgba(255,255,255,.55);font-size:13px}

/* contact */
.contact-card{grid-template-columns:.9fr 1.1fr;max-width:1080px;border:1px solid rgba(21,22,34,.09);box-shadow:0 32px 90px rgba(48,42,104,.14)}
.cc-left{position:relative;padding:62px 52px;overflow:hidden;color:#fff;background:radial-gradient(circle at 5% 95%,rgba(76,141,255,.35),transparent 38%),linear-gradient(145deg,#191926,#28233f)}
.cc-left .tag{color:#9b8dff;font-size:13px;letter-spacing:.1em}.cc-left p{color:rgba(255,255,255,.63)}.cc-left .reply{color:rgba(255,255,255,.7);font-size:13px}.cc-people .avs span{border-color:#29243f}.cc-people .dot{width:9px;height:9px;background:#3fd28a;box-shadow:0 0 0 4px rgba(63,210,138,.14)}
.cc-right{padding:52px;background:#fafafe}.field input,.field select,.field textarea{padding:16px 18px;border-radius:14px;font-size:14px}.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(108,85,248,.55);box-shadow:0 0 0 4px rgba(108,85,248,.09)}

/* footer */
.site-footer{padding:64px 0 40px}.foot-brand{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-bottom:30px;border-bottom:1px solid var(--line)}.foot-brand p{max-width:380px;color:var(--muted);font-size:14px;text-align:right}
.foot-row{padding-top:26px}.foot-copy,.foot-links a{font-size:13px}.foot-beian{margin-top:26px}.foot-company{margin-top:8px}

@media(max-width:900px){
  .container{padding-inline:22px}.section{padding:82px 0}.nav{height:68px}.nav-download{display:none}.menu-toggle{display:block}
  .nav-links{position:fixed;inset:68px 0 auto;display:flex;flex-direction:column;align-items:stretch;gap:4px;max-height:0;margin:0;padding:0 20px;overflow:hidden;visibility:hidden;background:rgba(247,248,252,.98);border-bottom:1px solid var(--line);opacity:0;transition:.25s ease}
  .nav-links.is-open{max-height:calc(100vh - 68px);padding-block:14px 22px;visibility:visible;opacity:1}.nav-links a{padding:14px 16px;font-size:16px}
  .trust-grid{grid-template-columns:1fr;padding-block:18px}.trust-grid>div{padding:14px 0;border-right:0;border-bottom:1px solid rgba(255,255,255,.11)}.trust-grid>div:last-child{border-bottom:0}
  .grid[style]{grid-template-columns:1fr!important}.feature-card{min-height:auto}.dl-hero-wrap{grid-template-columns:minmax(230px,330px) minmax(330px,1fr);gap:30px}.contact-card{grid-template-columns:1fr}.cc-left,.cc-right{padding:44px 38px}
}

@media(max-width:640px){
  .container{padding-inline:18px}.section{padding:66px 0}.brand{font-size:17px}.logo-mark{width:34px}.h1{font-size:clamp(40px,12vw,54px)}.h2{font-size:36px}.lead{font-size:17px;line-height:1.7}.hero{padding-top:54px}.hero .mt-btn .btn{width:100%}
  .hero-visual{margin:38px -50px 0}.hero-visual img{width:145%;height:auto;max-width:none;max-height:none}.showcase-img,.theme-visual,.mem-visual{margin-top:36px;border-radius:18px}.showcase-img{min-height:0;object-fit:contain;object-position:center}
  .theme-cols p{padding:22px}.theme-foot{font-size:19px}.feature-card{padding:42px 22px;border-radius:24px}.feature-card h3,.feature-card h3[style]{font-size:36px!important}.feature-card img{max-height:250px}
  .feat-hero-wrap{flex-direction:column}.feat-hero-wrap img{width:76%;height:auto;max-width:76%;max-height:none}.ai-labels{width:100%}.ai-labels li{width:100%;min-width:0}.flow{align-items:stretch;flex-direction:column;padding:22px}.flow .step{text-align:center;white-space:normal}.flow .arrow{height:16px;text-align:center;transform:rotate(90deg)}
  .dark-card{align-items:stretch;padding:36px 25px;border-radius:24px;text-align:left}.mini-phone{width:100%}.download-hero{padding-bottom:60px}.download-hero .h1 br{display:none}.dl-hero-wrap{display:flex;flex-direction:column;margin-top:40px}.dl-hero-wrap img.phone{width:72%;height:auto;max-height:none}.dl-actions{order:-1;width:100%}
  .download-card{grid-template-columns:46px 1fr;padding:20px;border-radius:23px}.platform-icon{width:46px;height:46px;border-radius:14px}.platform-icon svg{width:27px}.download-copy strong{font-size:19px}.install-grid{grid-template-columns:1fr}.install-grid>div{padding:16px 0;border-right:0;border-bottom:1px solid rgba(255,255,255,.12)}.install-grid>div:last-child{border-bottom:0}
  .cc-left,.cc-right{padding:36px 24px}.cc-left h2{font-size:38px}.cc-right .btn{width:100%}.foot-brand{align-items:flex-start;flex-direction:column}.foot-brand p{text-align:left}.foot-links{display:grid;grid-template-columns:1fr 1fr;width:100%;gap:14px}.foot-beian,.foot-company{justify-content:flex-start}
}

@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* Privacy policy */
.legal-hero{padding:92px 0 70px;background:radial-gradient(circle at 50% 0,rgba(108,85,248,.14),transparent 42%),linear-gradient(180deg,#fafaff,#f4f5fa)}
.legal-hero-inner{text-align:center}.legal-hero .h1{font-size:clamp(44px,5vw,68px)}.legal-hero .lead{max-width:620px}
.legal-section{padding:72px 0 110px}.legal-layout{display:grid;grid-template-columns:240px minmax(0,760px);justify-content:center;align-items:start;gap:50px}
.legal-aside{position:sticky;top:110px;padding:24px;background:#fff;border:1px solid rgba(21,22,34,.09);border-radius:22px;box-shadow:var(--shadow)}
.legal-aside-label{display:block;margin-bottom:7px;color:var(--purple);font-size:11px;font-weight:800;letter-spacing:.12em}.legal-aside>strong{font-size:20px;letter-spacing:-.02em}
.legal-aside dl{margin-top:22px}.legal-aside dl>div{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-top:1px solid var(--line);font-size:12px}.legal-aside dt{color:var(--muted)}.legal-aside dd{font-weight:650;text-align:right}
.legal-source{margin-top:16px;padding:10px 12px;color:var(--muted);background:var(--gray);border-radius:11px;font-size:11px;line-height:1.5}.legal-source.is-live{color:#147a4a;background:#e5f7ee}.legal-source.is-fallback{color:#8a5a12;background:#fff4d7}
.legal-document{padding:54px 58px;background:#fff;border:1px solid rgba(21,22,34,.09);border-radius:30px;box-shadow:var(--shadow)}
.legal-content{color:#3f4252;font-size:16px;line-height:1.9}.legal-content>h1:first-child{display:none}.legal-content h2,.legal-content h3,.legal-content h4{margin:48px 0 16px;color:var(--ink);letter-spacing:-.03em}.legal-content h2{padding-top:10px;font-size:28px}.legal-content h3{font-size:22px}.legal-content h4{font-size:18px}
.legal-content p{margin:0 0 18px}.legal-content ol,.legal-content ul{margin:0 0 22px;padding-left:24px}.legal-content li{margin:7px 0;padding-left:4px}.legal-content hr{height:1px;margin:48px 0 24px;border:0;background:var(--line)}.legal-updated{color:var(--muted);font-size:13px}
.legal-content h1{margin:48px 0 16px;color:var(--ink);font-size:32px;letter-spacing:-.03em}.legal-content strong{color:var(--ink)}.legal-content a{color:var(--purple-dark);text-decoration:underline;text-underline-offset:3px}.legal-content blockquote{margin:0 0 22px;padding:2px 0 2px 20px;border-left:3px solid var(--purple);color:var(--muted)}.legal-content blockquote p:last-child{margin-bottom:0}.legal-content code{padding:2px 5px;border-radius:4px;background:var(--gray);font-size:.9em}.legal-content pre{overflow:auto;margin:0 0 22px;padding:16px;border-radius:12px;background:var(--gray);line-height:1.55}.legal-content pre code{padding:0;background:none}.legal-content table{display:block;overflow-x:auto;width:100%;margin:0 0 24px;border-collapse:collapse;font-size:14px;line-height:1.6}.legal-content th,.legal-content td{padding:10px 12px;border:1px solid var(--line);text-align:left;vertical-align:top}.legal-content th{color:var(--ink);background:var(--gray)}.legal-content img{max-width:100%;height:auto}
.legal-back{display:inline-flex;margin-bottom:22px;color:var(--muted);font-size:12px;font-weight:700}.legal-back:hover{color:var(--purple)}

/* Agreement directory */
.agreements-hero{padding-bottom:78px}.legal-hero--compact{padding:72px 0 58px}.legal-hero--compact .h1{font-size:clamp(40px,4.6vw,60px)}
.agreement-directory{padding:68px 0 110px;background:#f6f7fb}.directory-toolbar{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:34px}
.directory-kicker{display:block;margin-bottom:7px;color:var(--purple);font-size:12px;font-weight:800;letter-spacing:.12em}.directory-toolbar h2{font-size:clamp(32px,4vw,46px);letter-spacing:-.045em}.directory-source{padding:10px 14px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;font-size:12px}.directory-source.is-live{color:#147a4a;background:#e5f7ee;border-color:#c9ecda}.directory-source.is-fallback{color:#8a5a12;background:#fff4d7;border-color:#f4e4b9}
.agreement-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.agreement-card{display:flex;min-height:270px;padding:28px;flex-direction:column;color:var(--ink);background:#fff;border:1px solid rgba(21,22,34,.09);border-radius:24px;box-shadow:0 16px 44px rgba(37,36,69,.06);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}.agreement-card:hover{transform:translateY(-4px);border-color:rgba(108,85,248,.3);box-shadow:0 24px 54px rgba(47,39,116,.12)}
.agreement-scenes{display:flex;min-height:25px;flex-wrap:wrap;gap:6px}.agreement-scenes span{padding:5px 8px;color:var(--purple-dark);background:#eeebff;border-radius:999px;font-size:10px;font-weight:760}.agreement-card h2{margin:25px 0 11px;font-size:23px;line-height:1.25;letter-spacing:-.035em}.agreement-card>p{color:var(--muted);font-size:14px;line-height:1.75}.agreement-card-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:24px}.agreement-status{color:#9a6a18;font-size:11px;font-weight:760}.agreement-status.is-live{color:#168154}.agreement-arrow{display:grid;place-items:center;width:34px;height:34px;color:var(--purple-dark);background:#f0edff;border-radius:50%;font-size:17px}

@media(max-width:900px){.legal-layout{grid-template-columns:1fr;gap:24px}.legal-aside{position:static;display:grid;grid-template-columns:1fr auto;align-items:center;gap:4px 24px}.legal-back,.legal-aside-label,.legal-source{grid-column:1/-1}.legal-aside dl{margin:0}.legal-aside dl>div{border-top:0;padding:3px 0}.legal-document{padding:44px 38px}.agreement-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.legal-hero{padding:64px 0 50px}.legal-section{padding:36px 0 72px}.legal-aside{display:block;padding:20px}.legal-aside dl{margin-top:16px}.legal-aside dl>div{padding:8px 0;border-top:1px solid var(--line)}.legal-document{padding:30px 22px;border-radius:22px}.legal-content{font-size:15px;line-height:1.85}.legal-content h2{margin-top:38px;font-size:24px}.agreement-directory{padding:42px 0 76px}.directory-toolbar{align-items:flex-start;flex-direction:column;margin-bottom:24px}.agreement-grid{grid-template-columns:1fr}.agreement-card{min-height:230px;padding:24px}.agreement-card h2{margin-top:20px;font-size:22px}}

/* In-app help and feedback page. `feadback.html` is the established client URL. */
.feedback-page{background:#f6f7fb;color:#181925}
.feedback-page a{-webkit-tap-highlight-color:transparent}
.feedback-shell{width:min(100%,720px);margin:0 auto;padding-inline:max(20px,env(safe-area-inset-left),env(safe-area-inset-right))}
.feedback-hero{padding:calc(36px + env(safe-area-inset-top)) 0 34px;background:radial-gradient(circle at 88% 5%,rgba(76,141,255,.22),transparent 30%),radial-gradient(circle at 10% 30%,rgba(123,91,255,.18),transparent 34%),linear-gradient(145deg,#f8f7ff,#eef4ff)}
.feedback-brand{display:grid;place-items:center;width:52px;height:52px;margin-bottom:20px;background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.95);border-radius:17px;box-shadow:0 12px 32px rgba(77,57,220,.12)}
.feedback-brand svg{width:36px;height:22px}.feedback-kicker{margin-bottom:6px;color:var(--purple-dark);font-size:12px;font-weight:800;letter-spacing:.12em}
.feedback-hero h1{font-size:clamp(30px,8vw,44px);font-weight:760;line-height:1.18;letter-spacing:-.045em}.feedback-hero>div>p:last-of-type{margin-top:10px;color:var(--muted);font-size:15px}
.feedback-shortcuts{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:30px}
.feedback-shortcuts a{display:flex;min-width:0;padding:16px 10px;align-items:center;flex-direction:column;text-align:center;background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.96);border-radius:19px;box-shadow:0 10px 30px rgba(46,42,99,.07)}
.feedback-shortcut-icon{display:grid;place-items:center;width:34px;height:34px;margin-bottom:9px;color:var(--purple-dark);background:#eeebff;border-radius:11px;font-size:13px;font-weight:800}.feedback-shortcuts strong{font-size:13px}.feedback-shortcuts small{margin-top:2px;color:var(--muted);font-size:10px;white-space:nowrap}
.feedback-section{padding:48px 0}.feedback-section--form{padding-bottom:calc(50px + env(safe-area-inset-bottom));background:#eef0f6}
.feedback-section-heading{margin-bottom:22px}.feedback-section-heading>span{color:var(--purple);font-size:11px;font-weight:800;letter-spacing:.12em}.feedback-section-heading h2{margin-top:5px;font-size:28px;font-weight:750;letter-spacing:-.04em}.feedback-section-heading p{margin-top:8px;color:var(--muted);font-size:13px;line-height:1.7}
.feedback-faq{overflow:hidden;background:#fff;border:1px solid rgba(21,22,34,.08);border-radius:22px;box-shadow:0 14px 40px rgba(43,36,93,.06)}
.feedback-faq details+details{border-top:1px solid #ececf1}.feedback-faq summary{display:flex;min-height:62px;padding:18px 20px;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;font-size:15px;font-weight:680;list-style:none}.feedback-faq summary::-webkit-details-marker{display:none}
.feedback-faq summary span{position:relative;width:18px;height:18px;flex:none}.feedback-faq summary span:before,.feedback-faq summary span:after{content:"";position:absolute;left:4px;top:8px;width:10px;height:1.5px;background:#777b8e;border-radius:2px}.feedback-faq summary span:after{transform:rotate(90deg);transition:transform .2s}.feedback-faq details[open] summary span:after{transform:rotate(0)}
.feedback-faq details>div{padding:0 20px 20px}.feedback-faq details p{color:var(--muted);font-size:13px;line-height:1.75}.feedback-faq details a{color:var(--purple-dark);font-weight:650}
.feedback-form{padding:24px 20px;background:#fff;border:1px solid rgba(21,22,34,.08);border-radius:24px;box-shadow:0 16px 45px rgba(43,36,93,.08)}.feedback-form fieldset{border:0}.feedback-form legend,.feedback-field>span{display:block;margin-bottom:11px;font-size:14px;font-weight:680}.feedback-field>span b{color:#d33f5b;font-size:11px}.feedback-field>span em{color:var(--muted);font-size:11px;font-style:normal;font-weight:500}
.feedback-types{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:22px}.feedback-types label{cursor:pointer}.feedback-types input{position:absolute;opacity:0;pointer-events:none}.feedback-types span{display:block;padding:11px 8px;text-align:center;color:#5f6273;background:#f5f5f8;border:1px solid transparent;border-radius:12px;font-size:13px;font-weight:650;transition:.18s}.feedback-types input:checked+span{color:var(--purple-dark);background:#eeebff;border-color:rgba(108,85,248,.22)}.feedback-types input:focus-visible+span{outline:2px solid var(--purple);outline-offset:2px}
.feedback-field{position:relative;display:block;margin-bottom:20px}.feedback-field textarea,.feedback-field input{width:100%;padding:14px 15px;color:var(--ink);background:#f7f7fa;border:1px solid #e7e7ed;border-radius:14px;font:inherit;font-size:14px;outline:0}.feedback-field textarea{min-height:150px;padding-bottom:32px;resize:vertical;line-height:1.65}.feedback-field textarea:focus,.feedback-field input:focus{border-color:rgba(108,85,248,.55);box-shadow:0 0 0 4px rgba(108,85,248,.08)}.feedback-field small{position:absolute;right:13px;bottom:10px;color:#9a9cab;font-size:10px}
.feedback-consent{display:flex;align-items:flex-start;gap:9px;color:var(--muted);font-size:11px;line-height:1.6}.feedback-consent input{width:16px;height:16px;margin-top:1px;flex:none;accent-color:var(--purple)}.feedback-consent a{color:var(--purple-dark);font-weight:650}.feedback-status{min-height:21px;margin-top:14px;font-size:12px;line-height:1.7}.feedback-status.is-error{color:#c7324f}.feedback-status.is-success{color:#158153}
.feedback-submit{width:100%;min-height:50px;margin-top:4px;color:#fff;background:var(--grad);border:0;border-radius:15px;font-size:15px;font-weight:740;box-shadow:0 12px 28px rgba(77,57,220,.22)}.feedback-submit:disabled{cursor:wait;opacity:.65}
.feedback-contact{display:flex;margin-top:14px;padding:17px 18px;align-items:center;justify-content:space-between;gap:18px;background:rgba(255,255,255,.72);border:1px solid rgba(21,22,34,.07);border-radius:17px}.feedback-contact div{display:flex;flex-direction:column}.feedback-contact strong{font-size:13px}.feedback-contact span{color:var(--muted);font-size:11px}.feedback-contact a{padding:9px 14px;color:var(--purple-dark);background:#ebe8ff;border-radius:11px;font-size:12px;font-weight:720;white-space:nowrap}.feedback-safe-note{margin-top:14px;color:#858897;font-size:10px;line-height:1.65;text-align:center}
.feedback-safe-note a{color:var(--purple-dark);font-weight:650;overflow-wrap:anywhere}
@media(max-width:520px){.feedback-shortcuts{grid-template-columns:1fr 1fr}.feedback-shortcuts a{align-items:flex-start;padding:14px;text-align:left}.feedback-shortcut-icon{margin-bottom:8px}.feedback-shortcuts small{white-space:normal}.feedback-section{padding:40px 0}.feedback-form{margin-inline:-2px}.feedback-contact{align-items:flex-start}}
@media(prefers-reduced-motion:reduce){.feedback-faq summary span:after,.feedback-types span{transition:none}}