/* ============================================================
   TOKENS
   ============================================================ */
:root {
    --bg:       #f6f8ff;
    --white:    #ffffff;
    --text:     #0b0d2a;
    --text-2:   rgba(11,13,42,.55);
    --text-3:   rgba(11,13,42,.3);
    --indigo:   #6366f1;
    --purple:   #8b5cf6;
    --blue:     #3b82f6;
    --sky:      #38bdf8;
    --grad:     linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --grad-text:linear-gradient(135deg, #6366f1 0%, #8b5cf6 55%, #38bdf8 100%);
    --border:   rgba(99,102,241,.1);
    --shadow-s: 0 2px 12px rgba(99,102,241,.08);
    --shadow-m: 0 8px 40px rgba(99,102,241,.12);
    --shadow-l: 0 24px 80px rgba(99,102,241,.16);
    --glass:    rgba(255,255,255,.72);
    --r:        16px;
    --nav-h:    68px;
    --px:       clamp(24px, 10vw, 140px);
    --mono:     'Courier New', Consolas, monospace;
    --sans:     'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ============================================================
   RESET
   ============================================================ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;scroll-behavior:smooth}
body{
    background:var(--bg);
    color:var(--text);
    font-family:var(--sans);
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
    cursor:none;
}
a{text-decoration:none;color:inherit}
::-webkit-scrollbar{width:3px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:rgba(99,102,241,.3);border-radius:2px}

/* ============================================================
   AURORA BACKGROUND
   ============================================================ */
.aurora{
    position:fixed;inset:0;
    z-index:0;pointer-events:none;overflow:hidden;
}
.blob{
    position:absolute;border-radius:50%;
    filter:blur(90px);
    will-change:transform;
}
.blob-1{
    width:clamp(400px,50vw,700px);height:clamp(400px,50vw,700px);
    background:rgba(139,92,246,.13);
    top:-120px;left:-120px;
    animation:blobFloat 16s ease-in-out infinite;
}
.blob-2{
    width:clamp(300px,40vw,550px);height:clamp(300px,40vw,550px);
    background:rgba(99,102,241,.1);
    bottom:-80px;right:-80px;
    animation:blobFloat 20s ease-in-out infinite reverse;
}
.blob-3{
    width:clamp(200px,30vw,400px);height:clamp(200px,30vw,400px);
    background:rgba(56,189,248,.09);
    top:40%;left:55%;
    animation:blobFloat 13s ease-in-out infinite 4s;
}
.blob-4{
    width:clamp(150px,20vw,300px);height:clamp(150px,20vw,300px);
    background:rgba(139,92,246,.07);
    top:20%;right:10%;
    animation:blobFloat 18s ease-in-out infinite 8s;
}
@keyframes blobFloat{
    0%,100%{transform:translate(0,0) scale(1)}
    33%    {transform:translate(40px,-35px) scale(1.06)}
    66%    {transform:translate(-25px,30px) scale(.94)}
}

/* ============================================================
   PARTICLE CANVAS
   ============================================================ */
#particles{
    position:fixed;inset:0;
    z-index:1;pointer-events:none;
}

/* ============================================================
   CUSTOM CURSOR
   ============================================================ */
#cursor{
    position:fixed;
    width:32px;height:32px;
    border:1.5px solid rgba(99,102,241,.5);
    border-radius:50%;
    pointer-events:none;z-index:9999;
    transform:translate(-50%,-50%);
    transition:width .2s,height .2s,border-color .2s,background .2s;
}
#cursor-dot{
    position:fixed;
    width:4px;height:4px;
    background:var(--indigo);
    border-radius:50%;
    pointer-events:none;z-index:10000;
    transform:translate(-50%,-50%);
}
body.ch #cursor{
    width:48px;height:48px;
    border-color:var(--indigo);
    background:rgba(99,102,241,.07);
}

/* ============================================================
   NAV
   ============================================================ */
#nav{
    position:fixed;top:0;left:0;right:0;
    height:var(--nav-h);
    display:flex;align-items:center;justify-content:space-between;
    padding:0 var(--px);
    z-index:500;
    transition:background .35s,box-shadow .35s,backdrop-filter .35s;
}
#nav.scrolled{
    background:rgba(246,248,255,.85);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    box-shadow:0 1px 0 var(--border), var(--shadow-s);
}
.nav-logo{
    font-family:var(--mono);
    font-size:15px;font-weight:700;
    letter-spacing:.1em;color:var(--text);
    cursor:pointer;
}
.nav-logo span{color:var(--indigo)}
.nav-links{
    display:flex;list-style:none;
    gap:36px;
}
.nav-links a{
    font-size:15px;font-weight:400;
    color:var(--text-2);
    transition:color .2s;
    cursor:pointer;
}
.nav-links a:hover{color:var(--text)}
.nav-cta{
    display:flex;align-items:center;gap:6px;
    padding:8px 18px;
    background:var(--grad);
    color:#fff;font-size:13px;font-weight:500;
    border-radius:100px;
    transition:opacity .2s,transform .2s;
    cursor:pointer;
}
.nav-cta:hover{opacity:.9;transform:translateY(-1px)}
.nav-cta-icon{font-size:12px}
.burger{
    display:none;
    flex-direction:column;gap:5px;
    background:none;border:none;cursor:pointer;padding:4px;
}
.burger span{
    display:block;width:22px;height:1.5px;
    background:var(--text-2);
    transition:transform .3s,opacity .3s;
}

/* Mobile nav */
#mobile-nav{
    position:fixed;inset:0;
    background:rgba(246,248,255,.97);
    backdrop-filter:blur(20px);
    z-index:400;
    display:flex;align-items:center;justify-content:center;
    opacity:0;pointer-events:none;
    transition:opacity .3s;
}
#mobile-nav.open{opacity:1;pointer-events:all}
#mobile-nav ul{list-style:none;text-align:center;display:flex;flex-direction:column;gap:28px}
#mobile-nav a{font-size:32px;font-weight:700;color:var(--text)}
#mobile-nav a:hover{color:var(--indigo)}
.mobile-dl{
    font-size:18px !important;
    color:var(--indigo) !important;
    font-family:var(--mono) !important;
}

/* ============================================================
   HERO
   ============================================================ */
#hero{
    position:relative;
    min-height:100vh;
    display:flex;align-items:center;
    padding:var(--nav-h) var(--px) 0;
    z-index:2;gap:60px;
}

/* Left text */
.hero-left{flex:1;min-width:0}
.hero-eyebrow{
    display:flex;align-items:center;gap:10px;
    font-family:var(--mono);font-size:11px;
    letter-spacing:.28em;color:var(--text-3);
    text-transform:uppercase;margin-bottom:28px;
    animation:up 1s ease .1s both;
}
.dot-live{
    width:7px;height:7px;border-radius:50%;
    background:var(--sky);flex-shrink:0;
    animation:livePulse 2.5s ease-in-out infinite;
}
@keyframes livePulse{
    0%,100%{box-shadow:0 0 0 0 rgba(56,189,248,.5)}
    50%    {box-shadow:0 0 0 7px rgba(56,189,248,0)}
}
.hero-name{
    font-size:clamp(52px,9.5vw,128px);
    font-weight:900;
    line-height:.95;letter-spacing:-.03em;
    margin-bottom:28px;
    animation:up 1s ease .25s both;
}
.hero-name em{display:none}
/* Gradient on the name */
.hero-name{
    background:var(--grad-text);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.hero-name-en{
    display:block;
    font-family:var(--mono);
    font-size:clamp(12px,1.8vw,22px);
    font-weight:400;letter-spacing:.4em;
    -webkit-text-fill-color:var(--text-3);
    color:var(--text-3);
    background:none;
    margin-top:12px;
}
.hero-sub{
    font-size:clamp(15px,1.9vw,20px);
    color:var(--text-2);font-weight:300;
    line-height:1.6;max-width:480px;
    min-height:2em;
    margin-bottom:40px;
    animation:up 1s ease .4s both;
}
.blink{color:var(--indigo);animation:blink 1s step-end infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.hero-actions{
    display:flex;gap:14px;flex-wrap:wrap;
    animation:up 1s ease .55s both;
}

/* Shared buttons */
.btn-primary{
    display:inline-flex;align-items:center;gap:8px;
    padding:13px 28px;
    background:var(--grad);
    color:#fff;font-size:15px;font-weight:500;
    border-radius:100px;
    transition:transform .2s,box-shadow .2s;
    cursor:pointer;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-m)}
.btn-ghost{
    display:inline-flex;align-items:center;gap:8px;
    padding:13px 28px;
    border:1.5px solid var(--border);
    background:var(--glass);
    backdrop-filter:blur(12px);
    color:var(--text);font-size:15px;font-weight:400;
    border-radius:100px;
    transition:border-color .2s,background .2s,transform .2s;
    cursor:pointer;
}
.btn-ghost:hover{border-color:var(--indigo);background:#fff;transform:translateY(-2px)}

/* Right phone */
.hero-right{
    flex:0 0 auto;
    display:flex;align-items:center;justify-content:center;
    animation:up 1.1s ease .3s both;
}

/* Hero app screen content */
.hero-app-screen{
    width:100%;height:100%;
    background:linear-gradient(160deg,#0d1240 0%,#1a1060 100%);
    padding:14px 12px 12px;
    display:flex;flex-direction:column;gap:10px;
    overflow:hidden;
}
.has-bar{
    display:flex;align-items:center;justify-content:space-between;
    color:rgba(255,255,255,.85);font-size:11px;font-weight:600;
}
.has-dot{width:8px;height:8px;border-radius:50%;background:#22d3ee}
.has-card{
    background:rgba(99,102,241,.25);
    border-radius:10px;padding:10px 12px;
    color:#fff;
}
.hac-label{font-size:9px;color:rgba(255,255,255,.55);margin-bottom:4px}
.hac-val{font-size:14px;font-weight:700}
.hac-val b{color:#22d3ee}
.has-chart{
    display:flex;align-items:flex-end;gap:5px;
    flex:1;padding:8px 4px 4px;
}
.hac-bar{
    flex:1;border-radius:3px 3px 0 0;
    background:linear-gradient(to top,rgba(99,102,241,.8),rgba(139,92,246,.5));
}
.has-tag{
    font-size:9px;color:rgba(34,211,238,.9);
    font-family:var(--mono);letter-spacing:.06em;
    text-align:right;
}

/* Scroll cue */
.hero-scroll{
    position:absolute;bottom:36px;left:var(--px);
    display:flex;align-items:center;gap:12px;
    font-family:var(--mono);font-size:9px;
    letter-spacing:.25em;color:var(--text-3);
    text-transform:uppercase;
    animation:up 1s ease 1.2s both;
    z-index:3;
}
.scroll-track{
    width:44px;height:1px;
    background:var(--border);
    position:relative;overflow:hidden;
}
.scroll-thumb{
    position:absolute;top:0;left:0;
    width:20px;height:1px;
    background:var(--indigo);
    animation:scrollSlide 2s ease-in-out infinite;
}
@keyframes scrollSlide{
    0%  {left:-20px}
    100%{left:44px}
}

/* ============================================================
   IPHONE MOCKUP  (shared)
   ============================================================ */
.iphone{position:relative;display:inline-flex;flex-direction:column;align-items:center}
.iphone-frame{
    background:linear-gradient(145deg,#e2e6f0,#c8cedc);
    border-radius:44px;
    padding:13px;
    position:relative;
    box-shadow:
        0 0 0 1px rgba(255,255,255,.9) inset,
        0 0 0 2.5px rgba(160,165,190,.5),
        var(--shadow-l);
}
.iphone-island{
    position:absolute;top:13px;left:50%;
    transform:translateX(-50%);
    width:88px;height:28px;
    background:#111;
    border-radius:20px;
    z-index:10;
}
.iphone-screen{
    background:#fff;
    border-radius:33px;
    overflow:hidden;
    position:relative;
}
.iphone-pill{
    width:110px;height:4px;
    background:rgba(0,0,0,.2);
    border-radius:4px;
    margin:10px auto 0;
}
.iphone-shadow{
    width:80%;height:30px;
    background:radial-gradient(ellipse,rgba(99,102,241,.2) 0%,transparent 70%);
    margin-top:8px;
}

/* Hero phone size */
.iphone-hero .iphone-frame{
    width:200px;
}
.iphone-hero .iphone-screen{
    width:174px;height:330px;
}

/* Demo phone size */
.iphone-demo .iphone-frame{
    width:260px;
}
.iphone-demo .iphone-screen{
    width:234px;height:480px;
}

/* ============================================================
   SECTIONS — shared
   ============================================================ */
.section{
    position:relative;z-index:2;
    padding:120px var(--px);
    border-top:1px solid var(--border);
}
.section-tag{
    display:flex;align-items:flex-end;gap:16px;
    margin-bottom:64px;
}
.tag-num{
    font-family:var(--mono);
    font-size:clamp(64px,10vw,110px);
    font-weight:900;line-height:1;
    color:var(--text);opacity:.05;
    letter-spacing:-.04em;user-select:none;
}
.tag-label{
    font-family:var(--mono);
    font-size:10px;letter-spacing:.35em;
    color:var(--text-3);text-transform:uppercase;
    padding-bottom:14px;
}

/* Scroll reveal */
@keyframes up{
    from{opacity:0;transform:translateY(30px)}
    to  {opacity:1;transform:translateY(0)}
}
.reveal{
    opacity:0;transform:translateY(36px);
    transition:opacity .85s cubic-bezier(.22,1,.36,1),
                transform .85s cubic-bezier(.22,1,.36,1);
    transition-delay:var(--delay,0s);
}
.reveal.vis{opacity:1;transform:none}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid{
    display:grid;
    grid-template-columns:1fr 1.2fr;
    gap:80px;margin-bottom:64px;
    align-items:start;
}
.about-headline h2{
    font-size:clamp(32px,4.5vw,62px);
    font-weight:900;line-height:1.15;
    letter-spacing:-.025em;margin-bottom:16px;
}
.about-headline h2 em{
    font-style:normal;
    background:var(--grad-text);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.about-en{
    font-family:var(--mono);
    font-size:11px;letter-spacing:.08em;
    color:var(--text-3);line-height:1.8;
    border-left:2px solid rgba(99,102,241,.3);
    padding-left:14px;
}
.about-body p{
    font-size:17px;line-height:1.95;
    color:var(--text-2);font-weight:300;
    margin-bottom:36px;
}
.about-stats{
    display:flex;gap:36px;
    padding:28px 0;
    border-top:1px solid var(--border);
    border-bottom:1px solid var(--border);
    margin-bottom:32px;flex-wrap:wrap;
}
.s-num{
    display:block;
    font-family:var(--mono);
    font-size:26px;font-weight:700;
    background:var(--grad);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    line-height:1;margin-bottom:6px;
}
.s-num i{font-style:normal;font-size:16px}
.s-label{
    font-family:var(--mono);font-size:9px;
    letter-spacing:.1em;color:var(--text-3);
    text-transform:uppercase;line-height:1.6;
}
.about-actions{display:flex;gap:12px;flex-wrap:wrap}

/* Expertise cards */
.expertise{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:16px;
}
.exp-card{
    padding:36px 28px;
    background:var(--glass);
    border:1px solid rgba(255,255,255,.9);
    border-radius:var(--r);
    backdrop-filter:blur(12px);
    box-shadow:var(--shadow-s);
    transition:transform .3s,box-shadow .3s;
    cursor:default;
}
.exp-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.exp-icon{
    display:block;
    font-size:22px;
    background:var(--grad);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    margin-bottom:18px;
}
.exp-card h3{
    font-size:17px;font-weight:700;
    margin-bottom:12px;
}
.exp-card p{
    font-size:13.5px;line-height:1.8;
    color:var(--text-2);font-weight:300;
}

/* ============================================================
   APP DEMO
   ============================================================ */
.app-demo-grid{
    display:grid;
    grid-template-columns:1fr auto;
    gap:80px;
    align-items:center;
}
.app-features h2{
    font-size:clamp(28px,4vw,52px);
    font-weight:900;line-height:1.15;
    letter-spacing:-.025em;margin-bottom:16px;
}
.app-features h2 em{
    font-style:normal;
    background:var(--grad-text);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.app-sub{
    font-size:16px;color:var(--text-2);
    font-weight:300;margin-bottom:44px;
}
.feature-list{display:flex;flex-direction:column;gap:0}
.feature-item{
    display:flex;gap:20px;
    padding:20px 20px 20px 0;
    border-bottom:1px solid var(--border);
    cursor:pointer;
    transition:background .2s;
    border-radius:var(--r);
}
.feature-item:hover,.feature-item.active-fi{
    background:rgba(99,102,241,.04);
    padding-left:16px;
}
.fi-icon{
    font-family:var(--mono);
    font-size:11px;font-weight:700;
    background:var(--grad);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
    letter-spacing:.05em;
    margin-top:2px;flex-shrink:0;
}
.fi-body h4{font-size:15px;font-weight:600;margin-bottom:6px}
.fi-body p{font-size:13px;color:var(--text-2);line-height:1.7;font-weight:300}
.app-badges{display:flex;gap:12px;margin-top:36px;flex-wrap:wrap}
.badge-appstore{
    display:inline-flex;align-items:center;gap:8px;
    padding:10px 20px;
    background:var(--text);
    color:#fff;font-size:13px;font-weight:500;
    border-radius:10px;
    transition:opacity .2s,transform .2s;
    cursor:pointer;
}
.badge-appstore:hover{opacity:.85;transform:translateY(-2px)}
.badge-secondary{background:var(--glass);color:var(--text);border:1px solid var(--border)}
.badge-secondary:hover{border-color:var(--indigo)}

/* App phone wrapper */
.app-phone-wrap{
    display:flex;flex-direction:column;align-items:center;gap:20px;
}
.screen-dots{display:flex;gap:8px}
.sdot{
    width:8px;height:8px;border-radius:50%;
    background:var(--border);border:none;cursor:pointer;
    transition:background .25s,transform .25s;
}
.sdot.active{
    background:var(--grad);
    transform:scale(1.25);
}

/* App screens (inside iPhone) */
.app-screen{
    position:absolute;inset:0;
    opacity:0;
    transition:opacity .45s ease;
    overflow:hidden;
}
.app-screen.active{opacity:1}
.iphone-demo .iphone-screen{position:relative}

/* Shared screen styles */
.as-header{
    display:flex;align-items:center;justify-content:space-between;
    padding:44px 14px 12px;
    font-size:13px;font-weight:700;
    color:var(--text);
    border-bottom:1px solid rgba(0,0,0,.06);
}
.as-avatar{
    width:28px;height:28px;border-radius:50%;
    background:var(--grad);
}
.as-spark{
    font-size:16px;
    background:var(--grad);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.as-add{
    width:24px;height:24px;border-radius:50%;
    background:var(--grad);
    color:#fff;font-size:16px;line-height:24px;text-align:center;
}

/* Screen 0 */
.as-card{
    margin:12px 14px 0;
    border-radius:12px;padding:14px;
}
.as-primary{
    background:linear-gradient(135deg,#6366f1,#8b5cf6);
    color:#fff;
}
.asc-label{font-size:10px;opacity:.75;margin-bottom:4px}
.asc-value{font-size:18px;font-weight:800}
.asc-value b{color:#bfdbfe}
.asc-sub{font-size:10px;opacity:.65;margin-top:4px}
.as-row{
    display:flex;gap:10px;
    margin:10px 14px 0;
}
.as-mini-card{
    flex:1;padding:10px;
    background:rgba(99,102,241,.06);
    border-radius:10px;border:1px solid var(--border);
    display:flex;flex-direction:column;align-items:center;gap:4px;
}
.amc-n{
    font-size:16px;font-weight:800;
    background:var(--grad);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.amc-l{font-size:9px;color:var(--text-2)}
.as-bar-chart{
    display:flex;align-items:flex-end;gap:5px;
    height:70px;margin:12px 14px 0;
    padding:6px 4px 0;
    background:rgba(99,102,241,.04);
    border-radius:10px;
}
.as-bar{
    flex:1;height:var(--h);border-radius:3px 3px 0 0;
    background:linear-gradient(to top,#6366f1,#8b5cf6);
    transition:height .4s ease;
}

/* Screen 1 */
.as-input-mock{
    margin:14px 14px 0;
    padding:12px 14px;
    border:1.5px solid var(--border);
    border-radius:10px;
    display:flex;align-items:center;justify-content:space-between;
    background:rgba(99,102,241,.03);
}
.aim-label{font-size:12px;color:var(--text-3)}
.aim-cursor{
    width:1.5px;height:14px;
    background:var(--indigo);
    animation:blink 1s step-end infinite;
}
.as-chip-row{
    display:flex;gap:7px;
    margin:10px 14px 0;flex-wrap:wrap;
}
.as-chip{
    padding:5px 11px;
    border-radius:100px;
    font-size:10px;
    background:rgba(99,102,241,.08);
    color:var(--text-2);border:1px solid var(--border);
    cursor:pointer;
}
.as-chip.active{
    background:var(--grad);color:#fff;border-color:transparent;
}
.as-output{
    margin:10px 14px 0;
    padding:12px;
    background:rgba(99,102,241,.05);
    border-radius:10px;
    border-left:3px solid var(--indigo);
}
.ao-tag{
    font-size:9px;font-family:var(--mono);
    color:var(--indigo);margin-bottom:8px;
    letter-spacing:.08em;
}
.ao-line{
    height:2.5px;border-radius:2px;
    background:rgba(99,102,241,.25);
    margin-bottom:7px;
}
.ao-line-1{width:90%}
.ao-line-2{width:75%}
.ao-line-3{width:50%}
.as-btn-row{
    display:flex;gap:8px;
    margin:10px 14px 0;
}
.as-btn{
    flex:1;padding:9px;text-align:center;
    font-size:11px;font-weight:500;
    border-radius:8px;
    background:rgba(99,102,241,.08);
    color:var(--text-2);cursor:pointer;
}
.as-btn-p{
    background:var(--grad);color:#fff;
}

/* Screen 2 */
.as-progress-item{
    margin:12px 14px 0;
}
.api-top{
    display:flex;justify-content:space-between;
    font-size:11px;color:var(--text-2);
    margin-bottom:6px;
}
.api-pct{font-weight:700;color:var(--indigo)}
.api-bar{
    height:4px;border-radius:4px;
    background:rgba(99,102,241,.12);overflow:hidden;
}
.api-fill{
    height:100%;border-radius:4px;
    background:var(--grad);
    transition:width .6s ease;
}
.api-done.api-fill{background:linear-gradient(90deg,#34d399,#10b981)}
.as-team-row{
    display:flex;align-items:center;gap:10px;
    margin:14px 14px 0;
}
.as-avatar-stack{display:flex}
.ava{
    width:26px;height:26px;border-radius:50%;
    border:2px solid #fff;margin-right:-8px;
}
.ava-1{background:linear-gradient(135deg,#6366f1,#8b5cf6)}
.ava-2{background:linear-gradient(135deg,#38bdf8,#0ea5e9)}
.ava-3{background:linear-gradient(135deg,#f472b6,#ec4899)}
.as-team-label{
    font-size:11px;color:var(--text-2);
    margin-left:12px;
}

/* ============================================================
   ARTICLES
   ============================================================ */
.articles-header{
    display:flex;align-items:baseline;justify-content:space-between;
    margin-bottom:36px;
}
.articles-header h2{
    font-size:clamp(24px,3.5vw,44px);
    font-weight:900;letter-spacing:-.025em;
}
.see-all{
    font-family:var(--mono);font-size:12px;
    color:var(--indigo);letter-spacing:.08em;
    transition:opacity .2s;cursor:pointer;
}
.see-all:hover{opacity:.7}
.articles-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
}
.art-card{
    padding:32px 28px;
    background:var(--glass);
    border:1px solid rgba(255,255,255,.9);
    border-radius:var(--r);
    backdrop-filter:blur(12px);
    box-shadow:var(--shadow-s);
    transition:transform .3s,box-shadow .3s;
    display:flex;flex-direction:column;gap:14px;
}
.art-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.art-meta{display:flex;align-items:center;gap:10px}
.art-date{
    font-family:var(--mono);font-size:10px;
    color:var(--text-3);letter-spacing:.1em;
}
.art-tag{
    font-family:var(--mono);font-size:9px;
    padding:3px 10px;border-radius:100px;
    background:rgba(99,102,241,.1);
    color:var(--indigo);letter-spacing:.08em;
}
.art-card h3{
    font-size:16px;font-weight:700;
    line-height:1.45;color:var(--text);
}
.art-card p{
    font-size:13.5px;line-height:1.75;
    color:var(--text-2);font-weight:300;flex:1;
}
.art-link{
    font-family:var(--mono);font-size:11px;
    color:var(--indigo);letter-spacing:.08em;
    display:flex;align-items:center;gap:4px;
    transition:gap .2s;
}
.art-link:hover{gap:8px}
.art-link span{transition:transform .2s}
.art-link:hover span{transform:translateX(4px)}

/* ============================================================
   CONTACT
   ============================================================ */
#contact{
    min-height:55vh;
    display:flex;flex-direction:column;
    justify-content:space-between;
}
.contact-wrap{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:60px;align-items:center;
    margin-bottom:80px;
}
.contact-left h2{
    font-size:clamp(40px,6.5vw,80px);
    font-weight:900;line-height:1.1;
    letter-spacing:-.03em;
}
.contact-left h2 em{
    font-style:normal;
    background:var(--grad-text);
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
    background-clip:text;
}
.contact-en{
    font-family:var(--mono);font-size:11px;
    letter-spacing:.15em;color:var(--text-3);
    text-transform:uppercase;margin-top:12px;
}
.contact-email{
    display:inline-flex;align-items:center;gap:12px;
    font-family:var(--mono);
    font-size:clamp(15px,2.2vw,24px);
    color:var(--indigo);
    border-bottom:1.5px solid rgba(99,102,241,.25);
    padding-bottom:4px;
    transition:color .2s,border-color .2s,gap .2s;
}
.contact-email:hover{
    color:var(--purple);
    border-color:var(--purple);gap:18px;
}
.email-arrow{transition:transform .2s}
.contact-email:hover .email-arrow{transform:translateX(4px)}
.contact-hint{
    margin-top:12px;
    font-size:12px;color:var(--text-3);
    font-family:var(--mono);letter-spacing:.06em;
}
footer{
    display:flex;justify-content:space-between;align-items:center;
    padding-top:36px;border-top:1px solid var(--border);
}
footer span{
    font-family:var(--mono);font-size:10px;
    letter-spacing:.08em;color:var(--text-3);
    text-transform:uppercase;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:1100px){
    .about-grid{grid-template-columns:1fr;gap:48px}
    .app-demo-grid{grid-template-columns:1fr;justify-items:center}
    .app-features{max-width:560px}
}
@media(max-width:900px){
    .expertise{grid-template-columns:1fr 1fr}
    .articles-grid{grid-template-columns:1fr 1fr}
    .contact-wrap{grid-template-columns:1fr}
    .hero-right{display:none}
}
@media(max-width:640px){
    body{cursor:auto}
    #cursor,#cursor-dot{display:none}
    #nav{padding:0 24px}
    .nav-links,.nav-cta{display:none}
    .burger{display:flex}
    .section{padding:80px 24px}
    .expertise{grid-template-columns:1fr}
    .articles-grid{grid-template-columns:1fr}
    footer{flex-direction:column;gap:10px;text-align:center}
    .iphone-demo .iphone-frame{width:220px}
    .iphone-demo .iphone-screen{width:194px;height:396px}
}

/* ============================================================
   EXPERTISE — clearer text
   ============================================================ */
.exp-card p{
    font-size:14px;line-height:1.85;
    color:rgba(11,13,42,.68);font-weight:400;
}
.exp-icon{
    display:block;margin-bottom:20px;
    line-height:1;
}
.exp-icon svg{display:block}

/* ============================================================
   HERO CAROUSEL
   ============================================================ */
.hero-carousel{
    position:relative;width:100%;height:100%;
    overflow:hidden;
    background:linear-gradient(160deg,#0d1240 0%,#1a1060 100%);
}
.hc-slide{
    position:absolute;inset:0;
    opacity:0;transition:opacity .55s ease;
    pointer-events:none;
}
.hc-slide.active{opacity:1;pointer-events:all}
.hc-bg{
    width:100%;height:100%;
    display:flex;flex-direction:column;
    padding:44px 10px 8px;
    gap:7px;overflow:hidden;
}
.hc-dark{background:linear-gradient(160deg,#0d1240,#1a1060)}
.hc-warm{background:linear-gradient(160deg,#fff9f4,#fef3ec)}
.hc-light{background:#f8faff}
.hc-gold{background:#000}
.hc-blue{background:#f0f4ff}

/* Hero carousel bar */
.hc-bar{
    display:flex;justify-content:space-between;align-items:center;
    font-size:10px;font-weight:700;color:rgba(255,255,255,.85);
    padding-bottom:5px;border-bottom:1px solid rgba(255,255,255,.1);
}
.hc-bar-warm{color:rgba(80,40,20,.75);border-color:rgba(80,40,20,.1)}
.hc-bar-light{color:var(--text);border-color:var(--border)}
.hc-bar-gold{color:#D4AF37;border-color:rgba(212,175,55,.2)}
.hc-bar-blue{color:var(--text);border-color:var(--border)}

/* 月之案面 hero mini */
.hc-storyboard{display:flex;gap:5px;flex:1}
.hc-panel{display:flex;flex-direction:column;flex:1;gap:3px}
.hc-panel svg{border-radius:4px;display:block}
.hc-cap{font-family:var(--mono);font-size:7px;color:rgba(255,255,255,.45);text-align:center}
.hc-tag{font-family:var(--mono);font-size:8px;color:rgba(56,189,248,.8);letter-spacing:.08em;text-align:right}

/* 情绪岛 hero mini */
.hc-pet-area{display:flex;flex-direction:column;align-items:center;gap:3px;padding:4px 0}
.hc-pet{font-size:32px;line-height:1;animation:petBounce 2.5s ease-in-out infinite}
@keyframes petBounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.hc-pet-mood{font-size:9px;color:rgba(120,60,20,.65)}
.hc-chat-bubble{
    background:rgba(255,255,255,.85);
    border-radius:10px 10px 10px 2px;
    padding:6px 9px;font-size:9px;
    color:rgba(60,30,10,.75);
    align-self:flex-start;max-width:90%;
}
.hc-food-row{display:flex;gap:8px;padding:3px 0;font-size:14px}

/* 灵感瞬间 hero mini */
.hc-mic-area{display:flex;flex-direction:column;align-items:center;gap:4px;padding:4px 0}
.hc-mic-btn{
    width:36px;height:36px;border-radius:50%;
    background:var(--grad);
    display:flex;align-items:center;justify-content:center;
    color:#fff;
    box-shadow:0 0 0 6px rgba(99,102,241,.12);
}
.hc-mic-label{font-size:8px;color:var(--text-3)}
.hc-inspiration-card{
    background:#fff;border-radius:8px;
    padding:6px 8px;font-size:9px;
    color:var(--text);
    box-shadow:var(--shadow-s);
    border-left:2.5px solid var(--indigo);
}

/* Vesper hero mini */
.hc-vp-q{color:#D4AF37;font-size:11px;font-weight:600;letter-spacing:.05em;padding:4px 0}
.hc-vp-opts{display:flex;flex-wrap:wrap;gap:5px}
.hc-vp-opt{
    background:rgba(212,175,55,.08);
    border:1px solid rgba(212,175,55,.25);
    color:#D4AF37;font-size:9px;
    border-radius:6px;padding:4px 7px;
    cursor:default;
}
.hc-vp-hint{font-size:8px;color:rgba(212,175,55,.4);font-family:var(--mono);margin-top:4px}

/* AI客服 hero mini */
.hc-online{display:flex;align-items:center;gap:3px;font-size:8px;color:#22c55e}
.hc-online-dot{width:5px;height:5px;border-radius:50%;background:#22c55e;animation:livePulse 2s infinite}
.hc-kf-msg{
    padding:5px 8px;border-radius:8px;font-size:9px;max-width:85%;
    line-height:1.5;
}
.hc-bot{background:#fff;color:var(--text);align-self:flex-start;border-radius:8px 8px 8px 2px}
.hc-user{background:var(--grad);color:#fff;align-self:flex-end;margin-left:auto;border-radius:8px 8px 2px 8px}
.hc-kf-chips{display:flex;gap:4px;flex-wrap:wrap}
.hc-kf-chip{
    background:rgba(99,102,241,.08);
    border:1px solid var(--border);
    color:var(--indigo);font-size:8px;
    border-radius:20px;padding:3px 7px;cursor:default;
}

/* Hero carousel dots */
.hc-dots{
    position:absolute;bottom:6px;left:50%;transform:translateX(-50%);
    display:flex;gap:5px;z-index:10;
}
.hc-dot{
    width:5px;height:5px;border-radius:50%;
    background:rgba(255,255,255,.3);border:none;cursor:pointer;
    transition:background .25s,transform .25s;
}
.hc-dot.active{background:rgba(255,255,255,.85);transform:scale(1.3)}

/* ============================================================
   APP SELECTOR (left panel of App Demo)
   ============================================================ */
.app-selector{display:flex;flex-direction:column;gap:0;margin-top:8px}
.app-item{
    display:flex;gap:16px;
    padding:16px 16px 16px 0;
    border-bottom:1px solid var(--border);
    cursor:pointer;
    border-radius:var(--r);
    transition:background .2s,padding .2s;
}
.app-item:hover,.app-item.active-ai{
    background:rgba(99,102,241,.05);
    padding-left:12px;
}
.app-item.active-ai{
    border-bottom-color:rgba(99,102,241,.15);
}
.ai-icon-wrap{
    flex-shrink:0;
    width:40px;height:40px;
    border-radius:12px;
    background:rgba(99,102,241,.08);
    border:1px solid var(--border);
    display:flex;align-items:center;justify-content:center;
    font-size:20px;
    transition:background .2s;
}
.app-item.active-ai .ai-icon-wrap{background:rgba(99,102,241,.14)}
.ai-emoji{line-height:1;display:block}
.ai-body{flex:1;min-width:0}
.ai-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:5px}
.ai-meta h4{font-size:14px;font-weight:700;margin:0}
.ai-tag{
    font-family:var(--mono);font-size:9px;
    padding:2px 8px;border-radius:100px;
    background:rgba(99,102,241,.1);
    color:var(--indigo);
    white-space:nowrap;
}
.ai-body p{
    font-size:12.5px;line-height:1.75;
    color:rgba(11,13,42,.65);
    font-weight:300;
    margin:0;
}

/* ============================================================
   SCREEN 0 — 月之案面
   ============================================================ */
.yz-wrap{
    width:100%;height:100%;
    background:linear-gradient(160deg,#0d1240,#1a1060);
    display:flex;flex-direction:column;
    overflow:hidden;
}
.yz-header{
    background:transparent!important;
    color:rgba(226,232,255,.9)!important;
    border-color:rgba(99,102,241,.2)!important;
}
.yz-input-area{
    margin:10px 12px 0;
    padding:9px 12px;
    border:1px solid rgba(99,102,241,.3);
    border-radius:8px;
    display:flex;align-items:center;
    background:rgba(99,102,241,.1);
    min-height:34px;
}
.yz-hint{font-size:10px;color:rgba(196,181,253,.5);flex:1}
.yz-gen-btn{
    margin:8px 12px 0;
    padding:8px;text-align:center;
    background:linear-gradient(135deg,#6366f1,#8b5cf6);
    color:#fff;font-size:11px;font-weight:600;
    border-radius:8px;cursor:pointer;
    border:none;width:calc(100% - 24px);
    letter-spacing:.04em;
    transition:opacity .2s,transform .2s;
}
.yz-gen-btn:hover{opacity:.9;transform:scale(.98)}
.yz-gen-btn:active{transform:scale(.95)}
.yz-gen-btn.loading{opacity:.7;pointer-events:none}
.yz-panels{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:6px;
    margin:8px 12px 0;
    flex:1;
}
.yz-wide{grid-column:1/-1}
.yz-panel{
    display:flex;flex-direction:column;gap:3px;
    border-radius:6px;overflow:hidden;
    opacity:0;transform:translateY(8px);
    transition:opacity .35s ease,transform .35s ease;
}
.yz-panel.visible{opacity:1;transform:none}
.yz-thumb svg{display:block;width:100%;border-radius:4px}
.yz-cap{
    font-family:var(--mono);font-size:7.5px;
    color:rgba(196,181,253,.55);
    padding:0 2px;
}
.yz-status{
    font-family:var(--mono);font-size:9px;
    color:rgba(56,189,248,.7);text-align:center;
    padding:4px 0 6px;min-height:20px;
    letter-spacing:.06em;
}

/* ============================================================
   SCREEN 1 — 情绪岛·伙伴
   ============================================================ */
.ei-wrap{
    width:100%;height:100%;
    background:linear-gradient(160deg,#fff9f4,#fef3ec);
    display:flex;flex-direction:column;
    overflow:hidden;
}
.ei-header{
    background:transparent!important;
    color:rgba(100,50,15,.8)!important;
    border-color:rgba(100,50,15,.1)!important;
}
.ei-pet-zone{
    display:flex;flex-direction:column;align-items:center;
    padding:12px 0 6px;gap:4px;
}
.ei-pet{
    font-size:52px;line-height:1;
    animation:petBounce 2.5s ease-in-out infinite;
    cursor:default;transition:transform .3s;
}
.ei-pet.shake{animation:petShake .4s ease}
@keyframes petShake{0%,100%{transform:rotate(0)}25%{transform:rotate(-8deg)}75%{transform:rotate(8deg)}}
.ei-pet-label{font-size:11px;color:rgba(120,60,15,.6)}
.ei-chat-area{padding:0 12px}
.ei-bubble{
    background:rgba(255,255,255,.85);
    border-radius:12px 12px 12px 3px;
    padding:8px 12px;font-size:11px;
    color:rgba(60,30,10,.8);
    display:inline-block;max-width:90%;
    box-shadow:0 2px 8px rgba(0,0,0,.06);
    transition:opacity .3s;
}
.ei-moods{
    display:flex;gap:6px;
    padding:8px 12px 0;justify-content:center;
}
.ei-mood{
    flex:1;padding:6px 4px;
    border:1px solid rgba(210,140,70,.2);
    background:rgba(255,255,255,.7);
    border-radius:100px;
    font-size:10px;color:rgba(120,60,15,.75);
    cursor:pointer;
    transition:background .2s,border-color .2s,transform .15s;
}
.ei-mood:hover{background:rgba(255,200,100,.15);border-color:rgba(210,140,70,.4)}
.ei-mood:active{transform:scale(.95)}
.ei-mood.active-mood{background:rgba(255,200,100,.25);border-color:rgba(210,140,70,.5)}
.ei-food-display{
    text-align:center;font-size:28px;
    padding:6px 0 8px;min-height:44px;
    transition:opacity .3s,transform .3s;
}
.ei-food-display.show{animation:foodFly .5s ease}
@keyframes foodFly{0%{transform:translateY(10px);opacity:0}60%{transform:translateY(-4px)}100%{transform:translateY(0);opacity:1}}

/* ============================================================
   SCREEN 2 — 灵感瞬间
   ============================================================ */
.lg-wrap{
    width:100%;height:100%;
    background:#f8faff;
    display:flex;flex-direction:column;
    overflow:hidden;
}
.lg-mic-area{
    display:flex;flex-direction:column;align-items:center;
    padding:16px 0 10px;gap:8px;
}
.lg-mic{
    width:52px;height:52px;border-radius:50%;
    background:var(--grad);
    border:none;cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    color:#fff;
    box-shadow:0 0 0 8px rgba(99,102,241,.1);
    transition:transform .2s,box-shadow .2s;
}
.lg-mic:hover{transform:scale(1.06);box-shadow:0 0 0 12px rgba(99,102,241,.1)}
.lg-mic:active{transform:scale(.95)}
.lg-mic.recording{
    animation:micPulse 1s ease-in-out infinite;
    background:linear-gradient(135deg,#ef4444,#f97316);
}
@keyframes micPulse{0%,100%{box-shadow:0 0 0 8px rgba(239,68,68,.15)}50%{box-shadow:0 0 0 16px rgba(239,68,68,.05)}}
.lg-mic-hint{font-size:10px;color:var(--text-3);font-family:var(--mono);letter-spacing:.06em}
.lg-cards{
    display:flex;flex-direction:column;gap:8px;
    padding:0 12px 10px;
    flex:1;overflow:hidden;
}
.lg-card{
    background:#fff;border-radius:10px;
    padding:10px 12px;
    box-shadow:var(--shadow-s);
    border-left:2.5px solid var(--indigo);
    display:flex;flex-direction:column;gap:4px;
    animation:cardSlideIn .35s ease;
}
@keyframes cardSlideIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}
.lg-card-time{font-family:var(--mono);font-size:9px;color:var(--text-3)}
.lg-card-text{font-size:12px;color:var(--text);line-height:1.6}
.lg-card-tag{
    font-family:var(--mono);font-size:9px;
    padding:2px 8px;border-radius:100px;
    background:rgba(99,102,241,.1);color:var(--indigo);
    align-self:flex-start;
}

/* ============================================================
   SCREEN 3 — Vesper / 死得起
   ============================================================ */
.vp-wrap{
    width:100%;height:100%;
    background:#000;
    display:flex;flex-direction:column;
    padding:44px 14px 10px;
    overflow:hidden;
}
.vp-header{
    display:flex;align-items:baseline;gap:8px;
    margin-bottom:12px;
    padding-bottom:10px;
    border-bottom:1px solid rgba(212,175,55,.15);
}
.vp-logo{
    font-size:15px;font-weight:700;
    color:#D4AF37;letter-spacing:.1em;
}
.vp-sub{font-size:10px;color:rgba(212,175,55,.5);font-family:var(--mono)}
.vp-step{display:none;flex-direction:column;gap:12px;flex:1}
.vp-step.active{display:flex}
.vp-q{
    font-size:16px;font-weight:600;
    color:#D4AF37;letter-spacing:.04em;line-height:1.4;
}
.vp-opts{display:flex;flex-direction:column;gap:8px}
.vp-opt{
    padding:10px 14px;
    border:1px solid rgba(212,175,55,.2);
    background:rgba(212,175,55,.04);
    color:rgba(212,175,55,.8);
    border-radius:8px;font-size:12px;
    cursor:pointer;text-align:left;
    transition:background .2s,border-color .2s,transform .15s;
}
.vp-opt:hover{background:rgba(212,175,55,.1);border-color:rgba(212,175,55,.4)}
.vp-opt:active{transform:scale(.98)}
.vp-result-label{
    font-family:var(--mono);font-size:9px;
    color:rgba(212,175,55,.5);letter-spacing:.2em;
    text-transform:uppercase;
}
.vp-total-num{
    font-size:38px;font-weight:900;
    color:#D4AF37;line-height:1;letter-spacing:-.03em;
}
.vp-total-num span{font-size:14px;font-weight:400;margin-left:4px;opacity:.7}
.vp-breakdown{display:flex;flex-direction:column;gap:6px;flex:1}
.vp-line{
    display:flex;justify-content:space-between;
    font-size:11px;
    color:rgba(212,175,55,.65);
    border-bottom:1px solid rgba(212,175,55,.08);
    padding-bottom:5px;
}
.vp-line span:last-child{color:#D4AF37;font-weight:600}
.vp-reset{
    background:rgba(212,175,55,.1);
    border:1px solid rgba(212,175,55,.3);
    color:#D4AF37;font-size:11px;
    border-radius:8px;padding:8px;
    cursor:pointer;width:100%;
    transition:background .2s;
}
.vp-reset:hover{background:rgba(212,175,55,.18)}
.vp-progress-dots{display:flex;gap:6px;justify-content:center;padding-top:8px}
.vp-pdot{
    width:6px;height:6px;border-radius:50%;
    background:rgba(212,175,55,.2);
    transition:background .3s;
}
.vp-pdot.active{background:#D4AF37}

/* ============================================================
   SCREEN 4 — AI 客服
   ============================================================ */
.kf-wrap{
    width:100%;height:100%;
    background:#f0f4ff;
    display:flex;flex-direction:column;
    overflow:hidden;
}
.kf-header{
    display:flex;align-items:center;gap:10px;
    padding:44px 14px 12px;
    background:#fff;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-s);
}
.kf-avatar-icon{
    width:32px;height:32px;border-radius:50%;
    background:var(--grad);
    color:#fff;font-size:10px;font-weight:800;
    display:flex;align-items:center;justify-content:center;
    flex-shrink:0;
}
.kf-name{font-size:12px;font-weight:700;color:var(--text)}
.kf-status{display:flex;align-items:center;gap:4px;font-size:9px;color:#22c55e}
.kf-dot{width:5px;height:5px;border-radius:50%;background:#22c55e;animation:livePulse 2s infinite}
.kf-chat{
    flex:1;padding:10px 10px 6px;
    display:flex;flex-direction:column;gap:7px;
    overflow:hidden;
}
.kf-msg{
    padding:8px 10px;border-radius:12px;
    font-size:11px;line-height:1.6;max-width:82%;
}
.kf-bot{
    background:#fff;color:var(--text);
    border-radius:2px 12px 12px 12px;
    align-self:flex-start;
    box-shadow:var(--shadow-s);
}
.kf-user{
    background:var(--grad);color:#fff;
    border-radius:12px 2px 12px 12px;
    align-self:flex-end;
}
.kf-typing{
    display:flex;gap:3px;align-items:center;
    padding:8px 12px;
    background:#fff;border-radius:2px 12px 12px 12px;
    align-self:flex-start;
    box-shadow:var(--shadow-s);
}
.kf-typing span{
    width:5px;height:5px;border-radius:50%;
    background:var(--text-3);
    animation:typingDot 1s ease-in-out infinite;
}
.kf-typing span:nth-child(2){animation-delay:.2s}
.kf-typing span:nth-child(3){animation-delay:.4s}
@keyframes typingDot{0%,60%,100%{transform:translateY(0)}30%{transform:translateY(-4px)}}
.kf-chips{
    display:flex;gap:6px;
    padding:8px 10px 10px;
    flex-wrap:wrap;
    background:#fff;
    border-top:1px solid var(--border);
}
.kf-chip{
    padding:5px 10px;
    border:1px solid var(--border);
    background:#f0f4ff;
    color:var(--indigo);font-size:10px;
    border-radius:100px;cursor:pointer;
    transition:background .2s,border-color .2s,transform .15s;
}
.kf-chip:hover{background:rgba(99,102,241,.1);border-color:rgba(99,102,241,.3)}
.kf-chip:active{transform:scale(.95)}