/* ══════════════════════════════════════════
   农赞科技 — 农资短视频智能创作平台
   Style: Dark SaaS / superdir.cn inspired
   ══════════════════════════════════════════ */

/* ── Reset & Variables ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --c-bg:#000;
  --c-surface:rgba(255,255,255,.03);
  --c-surface-h:rgba(255,255,255,.06);
  --c-border:rgba(255,255,255,.07);
  --c-border-h:rgba(255,255,255,.14);
  --c-text:#f1f0ff;
  --c-text2:rgba(255,255,255,.6);
  --c-text3:rgba(255,255,255,.35);
  --c-accent:#9b1cff;
  --c-accent2:#691de4;
  --c-green:#22c55e;
  --r:20px;
  --max:1200px;
}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:'Inter','Noto Sans SC',system-ui,sans-serif;background:var(--c-bg);color:var(--c-text);line-height:1.6;overflow-x:hidden;background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);background-size:60px 60px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.w{width:min(var(--max),100% - 48px);margin-inline:auto}

/* ── Ambient BG ── */
.ambient{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.ambient i{position:absolute;border-radius:50%;filter:blur(120px);opacity:.35;animation:drift 20s ease-in-out infinite alternate}
.ambient i:nth-child(1){width:700px;height:700px;top:-20%;left:-10%;background:var(--c-accent)}
.ambient i:nth-child(2){width:500px;height:500px;top:10%;right:-15%;background:var(--c-accent2);animation-delay:-7s;animation-duration:25s}
.ambient i:nth-child(3){width:400px;height:400px;bottom:-10%;left:30%;background:#451de4;animation-delay:-14s;animation-duration:30s}
@keyframes drift{to{transform:translate(60px,40px) scale(1.08)}}

/* ── Nav ── */
.topbar{position:fixed;top:0;left:0;right:0;z-index:100;backdrop-filter:blur(20px) saturate(1.5);background:rgba(0,0,0,.6);border-bottom:1px solid var(--c-border)}
.topbar .w{height:64px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;letter-spacing:-.3px}
.logo-icon{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--c-accent),var(--c-green));display:grid;place-items:center;font-size:16px}
.nav-r{display:flex;align-items:center;gap:24px}
.nav-r a{font-size:13px;font-weight:500;color:var(--c-text2);transition:color .2s}
.nav-r a:hover{color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer;transition:all .25s;font-family:inherit;line-height:1}
.btn-cta{background:linear-gradient(135deg,var(--c-accent),var(--c-accent2));color:#fff;padding:14px 32px;box-shadow:0 0 40px rgba(155,28,255,.3)}
.btn-cta:hover{transform:translateY(-2px);box-shadow:0 0 60px rgba(155,28,255,.45)}
.btn-sec{background:rgba(255,255,255,.06);color:#fff;padding:14px 32px;border:1px solid var(--c-border)}
.btn-sec:hover{background:rgba(255,255,255,.1);border-color:var(--c-border-h)}
.mob-menu{display:none;background:none;border:1px solid var(--c-border);border-radius:8px;padding:6px 12px;color:#fff;font-size:18px;cursor:pointer}

/* ── Hero ── */
.hero{position:relative;z-index:1;padding:180px 0 100px;text-align:center;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(155,28,255,.18) 0%,rgba(105,29,228,.25) 30%,rgba(69,29,228,.2) 55%,transparent 100%);pointer-events:none}
.hero .w{position:relative;z-index:1}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;border-radius:999px;background:rgba(155,28,255,.1);border:1px solid rgba(155,28,255,.2);color:rgba(255,255,255,.8);font-size:13px;font-weight:500;margin-bottom:32px}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-green);box-shadow:0 0 8px rgba(34,197,94,.5);animation:blink 2s ease-in-out infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.hero h1{font-size:clamp(32px,5.5vw,68px);font-weight:900;line-height:1.08;letter-spacing:-1.5px;max-width:820px;margin:0 auto}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--c-accent),#c084fc,var(--c-green));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{margin-top:24px;font-size:clamp(15px,1.8vw,19px);color:var(--c-text2);max-width:600px;margin-inline:auto;line-height:1.7}
.hero-btns{margin-top:40px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ── Stats Bar ── */
.stats{position:relative;z-index:1;padding:0 0 80px}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--c-border);border-radius:var(--r);overflow:hidden;background:var(--c-surface)}
.stat{padding:32px 24px;text-align:center;position:relative}
.stat+.stat::before{content:'';position:absolute;left:0;top:20%;height:60%;width:1px;background:var(--c-border)}
.stat b{display:block;font-size:clamp(28px,3.5vw,42px);font-weight:800;letter-spacing:-1px;background:linear-gradient(135deg,#fff,rgba(255,255,255,.7));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat span{display:block;margin-top:4px;font-size:13px;color:var(--c-text3);font-weight:500}

/* ── Logo Wall ── */
.logos{position:relative;z-index:1;padding:60px 0;overflow:hidden}
.logos-label{text-align:center;font-size:13px;color:var(--c-text3);font-weight:500;letter-spacing:.5px;text-transform:uppercase;margin-bottom:32px}
.logos-track{display:flex;gap:48px;animation:scroll 30s linear infinite;width:max-content}
.logos-track span{font-size:15px;font-weight:600;color:rgba(255,255,255,.25);white-space:nowrap;padding:8px 0}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ── Section ── */
.sec{position:relative;z-index:1;padding:100px 0}
.sec-label{font-size:13px;font-weight:600;color:var(--c-text3);letter-spacing:1px;text-transform:uppercase;text-align:center;margin-bottom:12px}
.sec-title{font-size:clamp(28px,4vw,48px);font-weight:800;letter-spacing:-.8px;text-align:center;line-height:1.15}
.sec-title em{font-style:normal;color:var(--c-text2)}
.sec-desc{text-align:center;color:var(--c-text2);font-size:16px;margin-top:12px;max-width:560px;margin-inline:auto}
.sec-head{margin-bottom:56px}

/* ── Feature Cards ── */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feat-card{background:linear-gradient(180deg,rgba(196,227,255,.06) 0%,rgba(196,227,255,.01) 100%),var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r);padding:32px 28px;transition:all .35s;position:relative;overflow:hidden}
.feat-card:hover{border-color:var(--c-border-h);transform:translateY(-4px);box-shadow:0 20px 60px rgba(0,0,0,.4)}
.feat-card .ico{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,rgba(155,28,255,.15),rgba(105,29,228,.1));display:grid;place-items:center;font-size:20px;margin-bottom:20px}
.feat-card h3{font-size:18px;font-weight:700;margin-bottom:8px;letter-spacing:-.2px}
.feat-card p{font-size:14px;color:var(--c-text2);line-height:1.65}
.feat-card.lg{grid-column:span 2;display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.feat-card.lg .feat-visual{border-radius:14px;min-height:200px}

/* ── Flow ── */
.flow-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.flow-step{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r);padding:28px 24px;transition:all .3s;position:relative}
.flow-step:hover{border-color:var(--c-border-h);background:var(--c-surface-h)}
.flow-num{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--c-accent),var(--c-accent2));color:#fff;font-weight:800;font-size:14px;display:grid;place-items:center;margin-bottom:16px;box-shadow:0 4px 20px rgba(155,28,255,.25)}
.flow-step h3{font-size:16px;font-weight:700;margin-bottom:6px}
.flow-step p{font-size:13px;color:var(--c-text2);line-height:1.6}
.flow-connector{display:flex;align-items:center;justify-content:center;padding:40px 0 0}
.flow-connector span{flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--c-accent),var(--c-accent2),transparent);opacity:.2}

/* ── Cases ── */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.case-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r);padding:32px 28px;transition:all .3s}
.case-card:hover{border-color:var(--c-border-h);background:var(--c-surface-h)}
.case-card h3{font-size:20px;font-weight:700;margin-bottom:8px;letter-spacing:-.2px}
.case-card>p{font-size:14px;color:var(--c-text2);line-height:1.65}
.case-metrics{margin-top:24px;display:flex;gap:24px}
.case-metric b{display:block;font-size:32px;font-weight:800;letter-spacing:-1px;background:linear-gradient(135deg,var(--c-accent),#c084fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.case-metric span{font-size:12px;color:var(--c-text3);font-weight:500}

/* ── Testimonials ── */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.testi{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r);padding:28px 24px;transition:all .3s}
.testi:hover{border-color:var(--c-border-h)}
.testi-quote{font-size:14px;color:var(--c-text2);line-height:1.7;margin-bottom:20px;position:relative;padding-left:16px;border-left:2px solid rgba(155,28,255,.3)}
.testi-author{display:flex;align-items:center;gap:12px}
.testi-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--c-accent),var(--c-accent2));display:grid;place-items:center;font-size:14px;font-weight:700;color:#fff}
.testi-name{font-size:14px;font-weight:600}
.testi-role{font-size:12px;color:var(--c-text3)}

/* ── CTA Banner ── */
.cta-banner{position:relative;z-index:1;padding:100px 0}
.cta-box{background:linear-gradient(135deg,rgba(155,28,255,.12),rgba(105,29,228,.08));border:1px solid rgba(155,28,255,.15);border-radius:var(--r);padding:64px 48px;text-align:center;position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-50%;left:50%;transform:translateX(-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(155,28,255,.15),transparent 60%);filter:blur(80px);pointer-events:none}
.cta-box h2{font-size:clamp(24px,3.5vw,40px);font-weight:800;letter-spacing:-.5px;position:relative}
.cta-box p{margin-top:12px;color:var(--c-text2);font-size:16px;position:relative}
.cta-box .hero-btns{position:relative;margin-top:32px}

/* ── Compliance ── */
.comp-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.comp-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r);padding:24px;transition:all .3s}
.comp-card:hover{border-color:var(--c-border-h)}
.comp-card b{display:flex;align-items:center;gap:8px;font-size:15px;margin-bottom:8px;color:rgba(255,255,255,.85)}
.comp-card b svg{color:rgba(155,28,255,.6);flex-shrink:0}
.comp-card p{font-size:13px;color:var(--c-text2);line-height:1.65}

/* ── Contact ── */
.ct-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ct-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r);padding:32px}
.ct-card h3{font-size:20px;font-weight:700;margin-bottom:20px}
.ct-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--c-border);font-size:14px}
.ct-row:last-child{border-bottom:0}
.ct-row span:first-child{color:var(--c-text3)}
.ct-row strong{color:var(--c-text);font-weight:600}
.ct-form{display:grid;gap:12px}
.ct-form input,.ct-form textarea{width:100%;background:rgba(255,255,255,.03);border:1px solid var(--c-border);border-radius:10px;padding:14px 16px;font-family:inherit;font-size:14px;color:#fff;transition:border-color .2s}
.ct-form input:focus,.ct-form textarea:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(155,28,255,.15)}
.ct-form input::placeholder,.ct-form textarea::placeholder{color:var(--c-text3)}
.ct-form textarea{min-height:100px;resize:vertical}

/* ── Footer ── */
footer{border-top:1px solid var(--c-border);padding:40px 0;position:relative;z-index:1}
.ft-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.ft-brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:14px}
.ft-copy{font-size:12px;color:var(--c-text3)}
.ft-copy a{color:var(--c-text2);transition:color .2s}
.ft-copy a:hover{color:#fff}

/* ── Float ── */
.float-cta{position:fixed;right:20px;bottom:20px;z-index:99;padding:12px 22px;border-radius:999px;background:linear-gradient(135deg,var(--c-accent),var(--c-accent2));color:#fff;font-size:13px;font-weight:600;box-shadow:0 8px 30px rgba(155,28,255,.3);transition:all .25s}
.float-cta:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(155,28,255,.45)}

/* ── Reveal Animation ── */
.rv{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.rv.show{opacity:1;transform:none}
.d1{transition-delay:.06s}.d2{transition-delay:.12s}.d3{transition-delay:.18s}.d4{transition-delay:.24s}

/* ── Responsive ── */
@media(max-width:1024px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .feat-card.lg{grid-column:span 2}
  .flow-row{grid-template-columns:repeat(2,1fr)}
  .case-grid,.testi-grid{grid-template-columns:1fr}
  .comp-grid,.ct-grid{grid-template-columns:1fr}
  .stats-inner{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3)::before{display:none}
}
@media(max-width:640px){
  .nav-r{display:none;position:absolute;top:64px;left:12px;right:12px;background:rgba(0,0,0,.95);backdrop-filter:blur(20px);border:1px solid var(--c-border);border-radius:14px;padding:16px;flex-direction:column;gap:12px}
  .nav-r.show{display:flex}
  .nav-r .btn-cta{width:100%;justify-content:center}
  .mob-menu{display:block}
  .hero{padding:130px 0 60px}
  .feat-grid{grid-template-columns:1fr}
  .feat-card.lg{grid-column:span 1;grid-template-columns:1fr}
  .flow-row{grid-template-columns:1fr}
  .stats-inner{grid-template-columns:1fr}
  .stat+.stat::before{display:none}
  .sec{padding:60px 0}
  .cta-box{padding:40px 24px}
  .float-cta{display:none}
  .hero-mockup{margin-top:40px}
  .mockup-grid{grid-template-columns:repeat(2,1fr)}
  .mockup-badge{display:none}
  .mockup-sidebar{display:none}
  .fv-video-grid{grid-template-columns:repeat(2,1fr)}
}

/* ── SVG Icon Colors ── */
.feat-card .ico svg{color:rgba(155,28,255,.7)}

/* ── Hero Mockup ── */
.hero-mockup{margin-top:64px;perspective:1200px;position:relative;max-width:900px;margin-inline:auto}
.mockup-window{background:rgba(255,255,255,.03);border:1px solid var(--c-border);border-radius:16px;overflow:hidden;transform:rotateX(4deg);box-shadow:0 40px 100px rgba(155,28,255,.12),0 0 0 1px rgba(255,255,255,.05);transition:transform .5s ease}
.mockup-window:hover{transform:rotateX(0deg)}
.mockup-topbar{display:flex;align-items:center;gap:12px;padding:12px 16px;background:rgba(255,255,255,.04);border-bottom:1px solid var(--c-border)}
.mockup-dots{display:flex;gap:6px}
.mockup-dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.1)}
.mockup-dots i:first-child{background:rgba(255,80,80,.5)}
.mockup-dots i:nth-child(2){background:rgba(255,190,50,.5)}
.mockup-dots i:last-child{background:rgba(50,205,50,.5)}
.mockup-title{font-size:12px;color:var(--c-text3);font-weight:500}
.mockup-body{display:flex;min-height:320px}
.mockup-sidebar{width:56px;background:rgba(255,255,255,.02);border-right:1px solid var(--c-border);padding:16px 0;display:flex;flex-direction:column;align-items:center;gap:12px}
.mockup-nav-item{width:28px;height:28px;border-radius:8px;background:rgba(255,255,255,.05)}
.mockup-nav-item.active{background:linear-gradient(135deg,rgba(155,28,255,.3),rgba(105,29,228,.2));box-shadow:0 0 12px rgba(155,28,255,.15)}
.mockup-main{flex:1;padding:20px 24px}
.mockup-header-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.mockup-breadcrumb{width:140px;height:10px;border-radius:5px;background:rgba(255,255,255,.08)}
.mockup-actions{display:flex;gap:8px}
.mockup-actions span{width:60px;height:28px;border-radius:6px;background:rgba(155,28,255,.15);display:block}
.mockup-actions span:last-child{background:linear-gradient(135deg,var(--c-accent),var(--c-accent2));opacity:.6}
.mockup-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.mockup-card-v{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);border-radius:10px;overflow:hidden}
.mockup-thumb{height:80px;background:linear-gradient(135deg,rgba(155,28,255,.08),rgba(34,197,94,.06));position:relative}
.mockup-thumb::after{content:'▶';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:rgba(255,255,255,.2);font-size:18px}
.mockup-meta{padding:10px;display:flex;flex-direction:column;gap:6px}
.mockup-meta span{display:block;height:6px;border-radius:3px;background:rgba(255,255,255,.06)}
.mockup-meta span:last-child{width:60%}
.mockup-badge{position:absolute;padding:6px 14px;border-radius:8px;font-size:12px;font-weight:600;color:#fff;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);animation:float-badge 4s ease-in-out infinite alternate;z-index:2}
.mockup-badge.b1{top:20%;right:-30px;background:rgba(155,28,255,.25);animation-delay:0s}
.mockup-badge.b2{bottom:30%;left:-40px;background:rgba(34,197,94,.2);animation-delay:-1.5s}
.mockup-badge.b3{bottom:10%;right:-20px;background:rgba(105,29,228,.25);animation-delay:-3s}
@keyframes float-badge{to{transform:translateY(-8px)}}

/* ── Feature Visuals ── */
.feat-visual{background:rgba(155,28,255,.03);border:1px solid rgba(155,28,255,.08);border-radius:14px;padding:20px;overflow:hidden}
.fv-video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.fv-vid{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:12px;text-align:center}
.fv-play{color:rgba(155,28,255,.5);font-size:20px;margin-bottom:8px}
.fv-bar{height:4px;background:rgba(255,255,255,.06);border-radius:2px;overflow:hidden}
.fv-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--c-accent),var(--c-green));border-radius:2px}
.fv-status{margin-top:12px;text-align:center;font-size:12px;color:var(--c-text2);display:flex;align-items:center;justify-content:center;gap:6px}
.fv-dot{width:6px;height:6px;border-radius:50%;display:inline-block}
.fv-dot.green{background:var(--c-green);box-shadow:0 0 8px rgba(34,197,94,.4)}
.fv-dashboard{display:flex;flex-direction:column;gap:16px;height:100%;justify-content:center}
.fv-chart{display:flex;align-items:flex-end;gap:6px;height:100px;padding:0 8px}
.fv-chart-bar{flex:1;background:linear-gradient(180deg,var(--c-accent),rgba(155,28,255,.2));border-radius:4px 4px 0 0;transition:height .6s ease;min-height:10px}
.fv-stats-row{display:flex;justify-content:space-around}
.fv-stat-mini{text-align:center}
.fv-stat-num{display:block;font-size:16px;font-weight:700;color:#fff}
.fv-stat-label{display:block;font-size:11px;color:var(--c-text3);margin-top:2px}