/* ===== 向日葵远程控制 - 暖阳橙金风 ===== */
:root {
  --bg: #fffaf5;
  --bg2: #fff5eb;
  --bg3: #ffe8d6;
  --card: #ffffff;
  --border: #f0dcc8;
  --border-light: #faf0e4;
  --text: #1c140d;
  --text2: #5c4430;
  --text3: #9c8268;
  --gold: #ea580c;
  --gold-light: #f97316;
  --amber: #f59e0b;
  --warm: #eab308;
  --grad: linear-gradient(135deg, #f59e0b, #ea580c);
  --grad-soft: linear-gradient(135deg, rgba(245,158,11,0.05), rgba(234,88,12,0.04));
  --grad-dark: linear-gradient(135deg, #2d1f0e, #3d2814);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 2px 24px rgba(0,0,0,0.04);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.08);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.03), 0 6px 18px rgba(0,0,0,0.04);
  --trans: 0.3s cubic-bezier(0.4,0,0.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* Nav */
.nav-bar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,250,245,0.94);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  max-width:1240px;margin:0 auto;padding:0 32px;height:64px;
  display:flex;align-items:center;justify-content:space-between;
}
.nav-brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:800;letter-spacing:-0.3px}
.nav-brand .brand-icon{
  width:34px;height:34px;background:var(--grad);border-radius:50%;
  display:grid;place-items:center;font-size:16px;color:#fff;
  box-shadow:0 4px 12px rgba(245,158,11,0.35)
}
.nav-brand .accent{color:var(--gold)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{padding:9px 18px;border-radius:8px;font-size:13px;font-weight:500;color:var(--text2);transition:all var(--trans)}
.nav-menu a:hover{color:var(--text);background:var(--bg2)}
.nav-menu a.btn-nav{
  background:var(--grad);color:#fff;font-weight:600;border-radius:8px;
  padding:10px 22px;box-shadow:0 4px 16px rgba(245,158,11,0.30)
}
.nav-menu a.btn-nav:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(245,158,11,0.40)}
.nav-toggle{display:none;background:none;border:none;color:var(--text);font-size:24px;cursor:pointer}

/* Hero */
.hero{
  padding:148px 0 80px;position:relative;overflow:hidden;
  background:
    radial-gradient(ellipse 70% 55% at 15% 20%,rgba(245,158,11,0.06) 0%,transparent 50%),
    radial-gradient(ellipse 40% 40% at 85% 65%,rgba(234,88,12,0.04) 0%,transparent 50%);
}
.hero::before{
  content:'';position:absolute;top:-120px;right:-80px;
  width:480px;height:480px;
  background:radial-gradient(circle,rgba(245,158,11,0.07) 0%,transparent 70%);
  border-radius:50%;pointer-events:none
}
.hero-grid{
  max-width:1240px;margin:0 auto;padding:0 32px;
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
  position:relative;z-index:1
}
.hero-text .tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:20px;
  background:linear-gradient(135deg,rgba(245,158,11,0.08),rgba(234,88,12,0.06));
  border:1px solid rgba(245,158,11,0.15);
  color:var(--gold);font-size:12px;font-weight:700;margin-bottom:28px
}
.hero-text h1{font-size:clamp(36px,5vw,54px);font-weight:900;line-height:1.08;letter-spacing:-1.2px;margin-bottom:20px}
.hero-text h1 .hl{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-text .desc{font-size:15px;color:var(--text3);line-height:1.8;margin-bottom:36px;max-width:460px}
.hero-btns{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.hero-btns .ver{font-size:12px;color:var(--text3);margin-left:10px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--trans);border:none;white-space:nowrap}
.btn-fill{background:var(--grad);color:#fff;box-shadow:0 6px 22px rgba(245,158,11,0.30)}
.btn-fill:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(245,158,11,0.40)}
.btn-line{background:var(--card);color:var(--text);border:1.5px solid var(--border)}
.btn-line:hover{border-color:var(--gold);color:var(--gold)}
.btn-ghost{background:var(--bg2);color:var(--text);border:1.5px solid var(--border)}
.btn-ghost:hover{background:var(--bg3)}

/* Hero Visual - Connected Devices */
.hero-visual{position:relative}
.hv-frame{
  background:var(--card);border:1px solid var(--border);
  border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg)
}
.hv-top{
  background:var(--grad-dark);padding:16px 20px;
  display:flex;align-items:center;gap:12px
}
.hv-dots{display:flex;gap:6px}
.hv-dot{width:10px;height:10px;border-radius:50%}
.hv-dot.r{background:#ff5f56}.hv-dot.y{background:#ffbd2e}.hv-dot.g{background:#27c93f}
.hv-top span{font-size:11px;color:rgba(255,255,255,0.55);margin-left:4px}
.hv-body{padding:22px}
.hv-device{
  display:flex;align-items:center;gap:14px;padding:14px 16px;
  background:var(--bg2);border:1px solid var(--border);
  border-radius:12px;margin-bottom:10px;transition:all var(--trans)
}
.hv-device:hover{border-color:var(--gold);transform:translateX(4px)}
.hv-device .hd-icon{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-size:18px
}
.hd-icon.pc{background:rgba(245,158,11,0.08)}
.hd-icon.nb{background:rgba(234,88,12,0.06)}
.hd-icon.ph{background:rgba(234,179,8,0.06)}
.hv-device strong{font-size:12px;display:block}
.hv-device span{font-size:10px;color:var(--text3)}
.hv-device .hd-status{font-size:10px;padding:3px 10px;border-radius:20px;font-weight:600;margin-left:auto}
.hd-status.on{background:rgba(34,197,94,0.1);color:#22c55e}
.hd-status.off{background:var(--bg3);color:var(--text3)}
.hv-input-row{display:flex;gap:8px;margin-top:16px}
.hv-input-row input{
  flex:1;padding:11px 16px;border:1.5px solid var(--border);
  border-radius:10px;font-size:13px;background:var(--bg2);
  outline:none;font-family:inherit;transition:border-color var(--trans)
}
.hv-input-row input:focus{border-color:var(--gold)}
.hv-input-row button{padding:11px 18px;font-size:13px;border-radius:10px}
.hv-badge{
  position:absolute;top:-18px;right:-14px;
  background:var(--card);border:1.5px solid var(--border);
  border-radius:14px;padding:12px 18px;box-shadow:var(--shadow-card);
  display:flex;align-items:center;gap:10px
}
.hv-badge strong{color:var(--gold);font-size:12px}

/* Stats Stripe */
.stats-strip{max-width:1240px;margin:0 auto;padding:0 32px 72px;position:relative;z-index:1}
.stats-inner{
  background:var(--grad-soft);border:1.5px solid var(--border);
  border-radius:var(--radius);padding:30px 44px;
  display:flex;align-items:center;justify-content:center;gap:52px;flex-wrap:wrap
}
.stats-inner .si{text-align:center}
.si .sin{font-size:30px;font-weight:900;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.si .sil{font-size:11px;color:var(--text3);margin-top:4px;letter-spacing:0.5px}

/* Sections */
.sec{max-width:1240px;margin:0 auto;padding:80px 32px}
.sec-head{text-align:center;margin-bottom:56px}
.sec-head .label{
  display:inline-block;padding:5px 16px;border-radius:20px;
  background:rgba(245,158,11,0.06);border:1px solid rgba(245,158,11,0.12);
  color:var(--gold);font-size:12px;font-weight:700;letter-spacing:1px;margin-bottom:18px
}
.sec-head h2{font-size:clamp(28px,4vw,42px);font-weight:800;letter-spacing:-0.5px;margin-bottom:14px}
.sec-head p{color:var(--text3);font-size:15px;max-width:520px;margin:0 auto}

/* Features */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feat-card{
  background:var(--card);border:1.5px solid var(--border);
  border-radius:var(--radius);padding:32px 28px;
  transition:all var(--trans);box-shadow:var(--shadow-card)
}
.feat-card:hover{border-color:var(--gold-light);transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.feat-card .fc-icon{
  width:48px;height:48px;border-radius:12px;display:grid;place-items:center;
  font-size:22px;margin-bottom:18px;flex-shrink:0
}
.fci-1{background:rgba(245,158,11,0.08)}.fci-2{background:rgba(234,88,12,0.06)}.fci-3{background:rgba(234,179,8,0.06)}
.feat-card h3{font-size:16px;font-weight:700;margin-bottom:8px}
.feat-card p{font-size:13px;color:var(--text3);line-height:1.7}

/* Scenes - dark */
.scene-zone{
  background:linear-gradient(180deg,#2d1f0e 0%,#1c140d 50%,#2d1f0e 100%);
  position:relative;overflow:hidden
}
.scene-zone::before{
  content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:600px;height:600px;
  background:radial-gradient(circle,rgba(245,158,11,0.06) 0%,transparent 60%);
  border-radius:50%;pointer-events:none
}
.scene-zone .sec-head h2{color:#fff}
.scene-zone .sec-head p{color:rgba(255,255,255,0.35)}
.scene-zone .sec-head .label{
  background:rgba(255,255,255,0.06);color:var(--amber);
  border-color:rgba(255,255,255,0.08)
}
.scene-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  position:relative;z-index:1
}
.scene-card{
  background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.06);
  border-radius:var(--radius);padding:32px 22px;text-align:center;
  transition:all var(--trans);backdrop-filter:blur(2px)
}
.scene-card:hover{border-color:rgba(245,158,11,0.25);transform:translateY(-2px);background:rgba(255,255,255,0.05)}
.scene-card .si{font-size:36px;margin-bottom:12px;display:block}
.scene-card h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:6px}
.scene-card p{font-size:12px;color:rgba(255,255,255,0.38)}

/* Plans */
.plan-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.plan-card{
  background:var(--card);border:1.5px solid var(--border);
  border-radius:var(--radius);padding:36px 30px;text-align:center;
  transition:all var(--trans);box-shadow:var(--shadow-card)
}
.plan-card:hover{border-color:#e4cfb8;transform:translateY(-2px);box-shadow:var(--shadow)}
.plan-card.popular{
  border:2px solid var(--gold);box-shadow:0 0 0 8px rgba(245,158,11,0.05);
  position:relative
}
.plan-card .plan-badge{display:inline-block;padding:4px 14px;border-radius:20px;font-size:11px;font-weight:700;margin-bottom:16px}
.plan-badge.accent{background:rgba(245,158,11,0.1);color:var(--gold)}
.plan-badge.grey{background:var(--bg2);color:var(--text3)}
.plan-card h3{font-size:19px;font-weight:700;margin-bottom:8px}
.plan-card .plan-price{font-size:36px;font-weight:900;margin-bottom:6px;color:var(--text)}
.plan-card .plan-price span{font-size:13px;font-weight:500;color:var(--text3)}
.plan-card .plan-desc{font-size:12px;color:var(--text3);margin-bottom:20px}
.plan-card ul{list-style:none;text-align:left;font-size:13px;color:var(--text2);margin-bottom:24px}
.plan-card ul li{padding:7px 0;border-bottom:1px solid var(--border-light);padding-left:18px;position:relative}
.plan-card ul li::before{content:"✦";position:absolute;left:0;color:var(--gold);font-size:10px;top:9px}
.plan-card ul li:last-child{border-bottom:none}

/* FAQ */
.faq-wrap{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;transition:all var(--trans)}
.faq-item:hover{border-color:#e4cfb8}
.faq-q{
  width:100%;padding:22px 26px;background:none;border:none;
  color:var(--text);font-size:15px;font-weight:600;text-align:left;
  cursor:pointer;display:flex;justify-content:space-between;align-items:center;
  font-family:inherit
}
.faq-q .arrow{font-size:12px;color:var(--gold);transition:transform var(--trans)}
.faq-a{padding:0 26px 22px;font-size:13px;color:var(--text3);line-height:1.8;display:none}
.faq-item.open .faq-a{display:block}
.faq-item.open .arrow{transform:rotate(180deg)}

/* CTA */
.cta-box{
  background:var(--grad-soft);border:1.5px solid var(--border);
  border-radius:var(--radius);padding:64px 48px;text-align:center
}
.cta-box h2{font-size:clamp(28px,4vw,38px);font-weight:800;margin-bottom:14px}
.cta-box p{color:var(--text3);font-size:15px;margin-bottom:30px}
.cta-box .cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Footer */
.footer{background:var(--bg2);border-top:1.5px solid var(--border)}
.footer-grid{
  max-width:1240px;margin:0 auto;padding:60px 32px 30px;
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:52px
}
.footer-brand .fl{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:800;margin-bottom:14px}
.footer-brand .fl .ficon{
  width:28px;height:28px;background:var(--grad);border-radius:50%;
  display:grid;place-items:center;color:#fff;font-size:14px;
  box-shadow:0 3px 10px rgba(245,158,11,0.3)
}
.footer-brand .fl .fc{color:var(--gold)}
.footer-brand p{font-size:12px;color:var(--text3);line-height:1.7;max-width:260px}
.footer-col h4{font-size:13px;font-weight:700;margin-bottom:18px;color:var(--text)}
.footer-col a{display:block;font-size:12px;color:var(--text3);padding:6px 0;transition:color var(--trans)}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{
  max-width:1240px;margin:0 auto;padding:20px 32px;
  border-top:1.5px solid var(--border);
  display:flex;justify-content:space-between;font-size:12px;color:var(--text3);
  flex-wrap:wrap;gap:14px
}

/* Download */
.dl-hero{
  padding:136px 0 60px;text-align:center;
  background:
    radial-gradient(ellipse 60% 50% at 50% 25%,rgba(245,158,11,0.04) 0%,transparent 55%),
    radial-gradient(ellipse 30% 30% at 20% 70%,rgba(234,88,12,0.02) 0%,transparent 50%)
}
.dl-hero-inner{max-width:760px;margin:0 auto;padding:0 32px}
.dl-hero-inner h1{font-size:clamp(32px,5vw,46px);font-weight:900;margin-bottom:14px;letter-spacing:-0.8px}
.dl-hero-inner .dl-sub{color:var(--text3);font-size:14px;margin-bottom:20px}
.dl-meta{display:inline-flex;gap:20px;font-size:12px;color:var(--text2);flex-wrap:wrap;justify-content:center}
.dl-meta span{display:inline-flex;align-items:center;gap:4px}
.dl-grid{max-width:1240px;margin:0 auto 60px;padding:0 32px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dl-card{
  background:var(--card);border:1.5px solid var(--border);
  border-radius:var(--radius);padding:36px 28px;text-align:center;
  transition:all var(--trans);display:flex;flex-direction:column;gap:16px;
  box-shadow:var(--shadow-card)
}
.dl-card:hover{border-color:var(--gold-light);transform:translateY(-2px);box-shadow:var(--shadow)}
.dl-card .dl-tag{
  display:inline-block;padding:4px 14px;border-radius:20px;font-size:11px;font-weight:700;
  background:rgba(245,158,11,0.07);color:var(--gold);align-self:center
}
.dl-card h3{font-size:19px;font-weight:700}
.dl-card .dl-info{font-size:13px;color:var(--text3);line-height:1.6}
.dl-card .dl-size{font-size:11px;color:var(--text3)}
.dl-tips{max-width:1240px;margin:0 auto 60px;padding:0 32px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dl-tips .tp{
  background:var(--card);border:1.5px solid var(--border);
  border-radius:var(--radius-sm);padding:26px 20px;display:flex;gap:16px;align-items:flex-start;
  box-shadow:var(--shadow-card)
}
.tp .tp-num{
  width:32px;height:32px;border-radius:50%;
  background:var(--grad-soft);color:var(--gold);
  display:grid;place-items:center;font-size:14px;font-weight:800;flex-shrink:0;
  border:1.5px solid rgba(245,158,11,0.15)
}
.tp strong{display:block;font-size:14px;margin-bottom:5px}
.tp p{font-size:12px;color:var(--text3);line-height:1.6}

.specs-tbl{
  max-width:780px;margin:0 auto;background:var(--card);
  border:1.5px solid var(--border);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-card)
}
.specs-tbl .sr{display:grid;grid-template-columns:160px 1fr;border-bottom:1px solid var(--border)}
.specs-tbl .sr:last-child{border-bottom:none}
.specs-tbl .sl{padding:16px 20px;background:var(--bg2);font-size:13px;font-weight:700;color:var(--gold)}
.specs-tbl .sv{padding:16px 20px;font-size:13px;color:var(--text2)}

/* 404 */
.err-wrap{min-height:100vh;display:grid;place-items:center;padding:32px;background:var(--bg)}
.err-card{
  max-width:480px;text-align:center;
  background:var(--card);border:1.5px solid var(--border);
  border-radius:var(--radius);padding:64px 48px;box-shadow:var(--shadow-lg)
}
.err-card .err-icon{font-size:64px;margin-bottom:20px}
.err-card .err-num{
  font-size:clamp(96px,18vw,150px);font-weight:900;
  background:var(--grad);-webkit-background-clip:text;
  -webkit-text-fill-color:transparent;background-clip:text;
  line-height:0.9;margin-bottom:10px
}
.err-card h1{font-size:20px;font-weight:700;margin-bottom:14px}
.err-card p{color:var(--text3);font-size:13px;line-height:1.7;margin-bottom:30px}
.err-card .err-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-visual{max-width:480px;margin:0 auto}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .scene-row{grid-template-columns:repeat(2,1fr)}
  .plan-row{grid-template-columns:1fr;max-width:400px;margin:0 auto}
  .dl-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-menu{display:none}
  .nav-toggle{display:block}
  .nav-menu.open{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:var(--card);border-bottom:1.5px solid var(--border);padding:14px 28px;gap:6px;z-index:99}
  .hero{padding:124px 0 52px}
  .hero-visual{max-width:100%}
  .hv-badge{position:static;margin-top:16px}
  .feat-grid,.scene-row{grid-template-columns:1fr}
  .dl-grid,.dl-tips{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .sec{padding:54px 20px}
  .cta-box{padding:48px 24px}
  .stats-inner{gap:32px}
}