*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --g50:#f0faf2;--g100:#d4f1da;--g200:#a8e2b3;--g400:#4caf6a;--g600:#2d7a45;--g800:#1a4d2a;
  --white:#fff;--gray50:#f8f9f7;--gray100:#eef0ec;--gray300:#c4c9be;--gray500:#7a8070;--gray700:#3d4238;--gray900:#1c1f18;
  --r-sm:8px;--r-md:14px;--r-lg:22px;
}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans SC',sans-serif;background:var(--white);color:var(--gray900);line-height:1.7;overflow-x:hidden}

nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.93);backdrop-filter:blur(12px);border-bottom:1px solid var(--gray100);padding:0 5vw;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{font-family:'ZCOOL XiaoWei',serif;font-size:22px;color:var(--g600);display:flex;align-items:center;gap:8px;text-decoration:none;letter-spacing:0.02em}
.logo-dot{width:8px;height:8px;background:var(--g400);border-radius:50%;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(0.8)}}
.nav-links{display:flex;gap:32px;list-style:none}
.nav-links a{font-size:14px;color:var(--gray500);text-decoration:none;transition:color .2s}
.nav-links a:hover{color:var(--g600)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-admin{font-size:13px;color:var(--gray500);text-decoration:none;padding:8px 12px;border-radius:var(--r-sm);transition:color .2s,background .2s}
.nav-admin:hover{color:var(--g600);background:var(--g50)}
.nav-cta{background:var(--g600);color:white;border:none;border-radius:var(--r-sm);padding:9px 22px;font-size:14px;font-family:'Noto Sans SC',sans-serif;cursor:pointer;text-decoration:none;transition:background .2s,transform .15s}
.nav-cta:hover{background:var(--g800);transform:translateY(-1px)}

.hero{padding:80px 5vw 60px;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;max-width:1200px;margin:0 auto}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--g50);border:1px solid var(--g200);border-radius:999px;padding:5px 14px;font-size:12px;color:var(--g600);font-weight:500;margin-bottom:22px}
.eyebrow-dot{width:6px;height:6px;background:var(--g400);border-radius:50%;animation:pulse 2s infinite}
h1{font-family:'ZCOOL XiaoWei',serif;font-size:clamp(34px,4vw,52px);line-height:1.25;color:var(--gray900);margin-bottom:18px}
h1 em{font-style:normal;color:var(--g600)}
.hero-desc{font-size:16px;color:var(--gray500);margin-bottom:32px;line-height:1.85;max-width:440px}
.hero-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.btn-primary{background:var(--g600);color:white;border:none;border-radius:var(--r-sm);padding:13px 28px;font-size:15px;font-family:'Noto Sans SC',sans-serif;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:background .2s,transform .15s}
.btn-primary:hover{background:var(--g800);transform:translateY(-2px)}
.btn-sec{background:transparent;color:var(--gray700);border:1px solid var(--gray300);border-radius:var(--r-sm);padding:12px 22px;font-size:14px;font-family:'Noto Sans SC',sans-serif;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:border-color .2s,color .2s}
.btn-sec:hover{border-color:var(--g400);color:var(--g600)}
.hero-trust{margin-top:26px;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--gray500)}
.hero-trust strong{color:var(--g600);font-weight:600}
.avatars{display:flex}
.av{width:28px;height:28px;border-radius:50%;border:2px solid white;margin-right:-8px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:500;color:white}

.hero-visual{display:flex;justify-content:center;align-items:flex-start;gap:12px;position:relative}
.phone-wrap{display:flex;flex-direction:column;align-items:center;gap:8px}
.phone-wrap-side{margin-top:40px}
.phone{background:#111;border-radius:36px;padding:10px;box-shadow:0 32px 64px rgba(0,0,0,0.22),0 6px 20px rgba(0,0,0,0.12);transition:transform .3s}
.phone:hover{transform:translateY(-6px)}
.phone-inner{border-radius:28px;overflow:hidden;width:160px;line-height:0}
.phone-inner img{width:100%;height:auto;display:block}
.phone.main .phone-inner{width:190px}
.phone-label{font-size:10px;color:var(--gray500);background:var(--g50);border:1px solid var(--g100);border-radius:999px;padding:2px 10px}

.stats-bar{background:var(--g600);padding:28px 5vw 22px}
.stats-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-num{font-family:'ZCOOL XiaoWei',serif;font-size:34px;color:white;line-height:1;margin-bottom:5px}
.stat-lbl{font-size:13px;color:rgba(255,255,255,.75);line-height:1.5}
.stat-hint{font-size:11px;color:rgba(255,255,255,.5);font-weight:400}
.stats-disclaimer{max-width:1200px;margin:14px auto 0;text-align:center;font-size:11px;color:rgba(255,255,255,.45);line-height:1.5}

.section{padding:90px 5vw;max-width:1200px;margin:0 auto}
.features-section{padding:48px 5vw 44px}
.features-section .sec-label{margin-bottom:10px}
.features-section h2{font-size:clamp(22px,2.4vw,32px);margin-bottom:8px}
.features-section .sec-desc{margin-bottom:28px;font-size:14px;line-height:1.7}
.features-section .features-grid{gap:14px}
.features-section .feat-card{padding:16px 18px;border-radius:var(--r-md)}
.features-section .feat-icon{width:36px;height:36px;font-size:17px;margin-bottom:10px}
.features-section .feat-title{font-size:14px;margin-bottom:5px}
.features-section .feat-desc{font-size:12px;line-height:1.55}
.features-section .feat-tag{margin-top:8px;font-size:10px;padding:2px 7px}
.sec-label{display:inline-block;background:var(--g50);color:var(--g600);border-radius:999px;padding:4px 14px;font-size:12px;font-weight:500;margin-bottom:14px}
h2{font-family:'ZCOOL XiaoWei',serif;font-size:clamp(26px,3vw,38px);color:var(--gray900);margin-bottom:12px;line-height:1.3}
h2 em{font-style:normal;color:var(--g600)}
.sec-desc{font-size:15px;color:var(--gray500);max-width:500px;margin-bottom:48px;line-height:1.85}
.reviews-desc{margin-bottom:36px}

.gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.gallery-item{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center}
.gallery-phone{background:#111;border-radius:32px;padding:9px;box-shadow:0 20px 40px rgba(0,0,0,0.14);width:100%;max-width:148px;line-height:0}
.gallery-phone img{width:100%;height:auto;display:block;border-radius:24px}
.gallery-caption{font-size:12px;color:var(--gray500);line-height:1.65}

.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.feat-card{background:var(--white);border:1px solid var(--gray100);border-radius:var(--r-lg);padding:26px;transition:border-color .2s,transform .2s}
.feat-card:hover{border-color:var(--g200);transform:translateY(-3px)}
.feat-icon{width:46px;height:46px;background:var(--g50);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px;color:var(--g600)}
.feat-title{font-size:16px;font-weight:500;color:var(--gray900);margin-bottom:8px}
.feat-desc{font-size:13px;color:var(--gray500);line-height:1.75}
.feat-tag{display:inline-block;background:var(--g50);color:var(--g600);border-radius:4px;font-size:11px;padding:3px 8px;margin-top:12px}
.feat-card.hl{background:var(--g600);border-color:var(--g600)}
.feat-card.hl .feat-icon{background:rgba(255,255,255,0.18);color:white}
.feat-card.hl .feat-title{color:white}
.feat-card.hl .feat-desc{color:rgba(255,255,255,.75)}
.feat-card.hl .feat-tag{background:rgba(255,255,255,.2);color:white}

.howto-wrap{background:var(--gray50)}
.howto-section{padding:90px 5vw;max-width:1200px;margin:0 auto}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.step{background:white;border:1px solid var(--gray100);border-radius:var(--r-lg);padding:22px}
.step-num{font-family:'ZCOOL XiaoWei',serif;font-size:30px;color:var(--g100);line-height:1;margin-bottom:10px}
.step-icon{font-size:22px;color:var(--g400);margin-bottom:8px}
.step-title{font-size:14px;font-weight:500;color:var(--gray900);margin-bottom:6px}
.step-desc{font-size:12px;color:var(--gray500);line-height:1.7}

.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rev-card{background:white;border:1px solid var(--gray100);border-radius:var(--r-lg);padding:24px}
.rev-stars{color:#f5a623;font-size:12px;margin-bottom:12px}
.rev-text{font-size:13px;color:var(--gray700);line-height:1.8;margin-bottom:16px}
.rev-author{display:flex;align-items:center;gap:10px}
.rev-av{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:500;color:white;flex-shrink:0}
.rev-name{font-size:13px;font-weight:500;color:var(--gray900)}
.rev-role{font-size:11px;color:var(--gray500)}

.cta-wrap{background:var(--g50)}
.cta-section{padding:90px 5vw;max-width:760px;margin:0 auto;text-align:center}
.cta-desc{max-width:100%;margin:16px auto 32px}
.cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:18px}
.dl-btn{display:inline-flex;align-items:center;gap:10px;background:var(--gray900);color:white;border-radius:var(--r-sm);padding:11px 20px;text-decoration:none;font-size:13px;transition:background .2s,transform .15s}
.dl-btn:hover{background:var(--gray700);transform:translateY(-2px)}
.dl-btn.green{background:var(--g600)}
.dl-btn.green:hover{background:var(--g800)}
.dl-btn.disabled{opacity:.55;pointer-events:none}
.dl-icon{font-size:22px;line-height:1}
.dl-sub{font-size:10px;opacity:.7;display:block}
.dl-main{font-size:14px;font-weight:500;display:block}
.cta-note{font-size:12px;color:var(--gray500)}
.cta-status{margin-top:8px;font-size:13px;color:var(--gray500)}

footer{background:var(--gray900);color:rgba(255,255,255,.5);padding:36px 5vw;text-align:center;font-size:13px}
footer a{color:rgba(255,255,255,.65);text-decoration:none;margin:0 10px}
footer a:hover{color:white}
footer strong{color:rgba(255,255,255,.8)}
.footer-tagline{margin-top:4px}
.footer-links{margin-top:12px}
.footer-copy{margin-top:8px}
.footer-beian{margin-top:8px}

.fade-up{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

@media(max-width:1100px){
  .gallery{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:900px){
  .hero{grid-template-columns:1fr;text-align:center}
  .hero-desc{margin:0 auto 32px}
  .hero-actions{justify-content:center}
  .hero-trust{justify-content:center}
  .hero-visual{margin-top:8px}
  .phone-wrap-side{margin-top:0}
  .features-grid,.steps,.rev-grid{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .stats-inner{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .features-grid,.steps,.rev-grid,.stats-inner,.gallery{grid-template-columns:1fr}
  .nav-links{display:none}
  .hero-visual{gap:8px;overflow-x:auto;justify-content:flex-start;padding:0 4vw 12px;width:100%;-webkit-overflow-scrolling:touch}
  .phone-inner{width:130px!important}
  .phone.main .phone-inner{width:150px!important}
}