:root{
  --green:#0f5a46;
  --green-dark:#0a3f31;
  --green-soft:#e7f2ee;
  --gold:#c9a24a;
  --gold-soft:#f7efdc;
  --ink:#1c2a26;
  --muted:#5b6b66;
  --line:#e3e9e6;
  --bg:#fbfaf6;
  --white:#fff;
  --radius:18px;
  --shadow:0 10px 30px rgba(15,90,70,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
section{padding:72px 0;scroll-margin-top:64px}
h1,h2,h3{line-height:1.25;color:var(--ink)}
h2{font-size:clamp(1.6rem,4vw,2.3rem);font-weight:800;letter-spacing:-.01em}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.section-head{max-width:720px;margin:0 auto 44px;text-align:center}
.section-head p{color:var(--muted);margin-top:14px}

/* Header */
.header{position:sticky;top:0;z-index:50;background:rgba(251,250,246,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.15rem;color:var(--green)}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--green);display:grid;place-items:center}
.logo b{font-weight:800}
.logo b span{color:var(--gold)}
.nav-links{display:flex;gap:28px;list-style:none;font-weight:600;font-size:.95rem}
.nav-links a{color:var(--muted);transition:color .2s}
.nav-links a:hover{color:var(--green)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;border-radius:999px;font-weight:700;font-size:.95rem;transition:transform .15s,background .2s,box-shadow .2s;border:0;cursor:pointer;font-family:inherit}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-dark)}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{background:#b48d37}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.4)}
.nav-cta{padding:9px 18px;font-size:.9rem}
.menu-btn{display:none;background:none;border:0;width:42px;height:42px;cursor:pointer;color:var(--ink)}
.mobile-menu{display:none}

/* Hero */
.hero{position:relative;padding:0;background:var(--green)}
.hero-banner{position:relative;min-height:640px;display:flex;align-items:center;
  background:#0a3f31 url(../images/banner.jpg) 70% center/cover no-repeat}
/* 左侧深绿渐变遮罩，保证白色文字清晰，同时露出右侧人物 */
.hero-banner::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(10,63,49,.92) 0%,rgba(10,63,49,.78) 35%,rgba(10,63,49,.25) 60%,rgba(10,63,49,0) 78%)}
.hero-content{position:relative;z-index:1;max-width:540px;color:#fff;padding:80px 0}
.hero h1{color:#fff;font-size:clamp(2.4rem,7vw,4rem);font-weight:800;letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero p{font-size:clamp(1rem,2.4vw,1.15rem);opacity:.92;margin:20px 0 32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-actions .store-btn{min-width:210px;text-shadow:none}
.hero-actions .store-android{background:rgba(10,63,49,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.hero-badges{display:flex;flex-wrap:wrap;gap:18px;margin-top:34px;font-size:.9rem;opacity:.9}
.hero-badges div{display:flex;align-items:center;gap:8px}
.hero-content{text-shadow:0 1px 12px rgba(0,0,0,.18)}

/* About */
.about-grid{max-width:820px;margin:0 auto;text-align:center}
.about-text p{font-size:1.05rem}
.about-text p{color:var(--muted);margin-bottom:16px}
.about-text p strong{color:var(--green)}
.about-text h2{margin-bottom:20px}
.diff{margin-top:72px}
.diff-title{text-align:center;margin-bottom:36px}
.diff-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.diff-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow)}
.diff-num{width:44px;height:44px;border-radius:12px;background:var(--gold-soft);color:var(--gold);font-weight:800;display:grid;place-items:center;margin-bottom:16px}
.diff-card h3{font-size:1.08rem;margin-bottom:10px}
.diff-card p{color:var(--muted);font-size:.95rem}

/* Features */
.features{background:var(--green-dark);color:#fff}
.features h2,.features h3{color:#fff}
.features .section-head p{color:rgba(255,255,255,.75)}
.features .section-head .sub{font-weight:700;font-size:1.15rem;color:#fff;margin-top:12px}
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.feat-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:32px}
.feat-icon{width:56px;height:56px;border-radius:16px;background:var(--gold);display:grid;place-items:center;margin-bottom:20px}
.feat-card .tag{font-size:.8rem;font-weight:700;color:var(--gold);letter-spacing:.08em;text-transform:uppercase}
.feat-card h3{font-size:1.3rem;margin:6px 0 4px}
.feat-card .tagline{font-weight:600;color:rgba(255,255,255,.95);margin-bottom:12px}
.feat-card p{color:rgba(255,255,255,.72);font-size:.96rem}

/* Members */
.member-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.member{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);display:flex;flex-direction:column}
.member-photo{position:relative;aspect-ratio:4/5;background:var(--green-soft)}
.member-photo img{width:100%;height:100%;object-fit:cover;object-position:center 20%}
.verified{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.95);color:var(--green);font-size:.75rem;font-weight:700;padding:5px 10px;border-radius:999px;display:flex;align-items:center;gap:5px}
.member-body{padding:20px 20px 24px}
.member h3{font-size:1.2rem}
.member .meta{font-size:.85rem;color:var(--gold);font-weight:700;margin:2px 0 10px}
.member p{font-size:.92rem;color:var(--muted)}

/* Stories */
.stories{background:var(--gold-soft)}
.story-list{display:grid;gap:28px}
.story{display:grid;grid-template-columns:380px 1fr;background:var(--white);border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
.story:nth-child(even){grid-template-columns:1fr 380px}
.story:nth-child(even) .story-img{order:2}
.story-img{background:var(--green-soft);min-height:320px}
.story-img img{width:100%;height:100%;object-fit:cover}
.story-body{padding:40px}
.story .meta{font-size:.85rem;color:var(--gold);font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.story h3{font-size:1.5rem;margin:6px 0 18px}
.story p{color:var(--muted);margin-bottom:14px}
.story blockquote{border-left:3px solid var(--gold);padding-left:16px;color:var(--green);font-weight:600;font-style:italic;margin-top:6px}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 24px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{flex:none;width:28px;height:28px;border-radius:50%;background:var(--green-soft);color:var(--green);display:grid;place-items:center;transition:transform .25s;font-size:1.2rem;line-height:1}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item .answer{padding:0 24px 22px;color:var(--muted)}

/* CTA */
.cta{padding:0 0 80px}
.cta-box{background:linear-gradient(135deg,#0f5a46,#0a3f31);border-radius:28px;padding:64px 40px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-box::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(201,162,74,.18);top:-200px;right:-120px}
.cta-box > *{position:relative}
.cta h2{color:#fff;max-width:640px;margin:0 auto}
.cta p{max-width:680px;margin:16px auto 0;color:rgba(255,255,255,.82)}
.cta p.strong{color:#fff;font-weight:700}
.store-btns{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.store-btn{display:inline-flex;align-items:center;gap:12px;padding:12px 22px;border-radius:14px;min-width:220px;justify-content:center;font-weight:700;transition:transform .15s,opacity .2s}
.store-btn:active{transform:scale(.97)}
.store-btn small{display:block;font-weight:500;font-size:.72rem;opacity:.8;line-height:1.2}
.store-btn span{display:block;font-size:1.02rem;line-height:1.2;text-align:left}
.store-ios{background:#000;color:#fff}
.store-ios:hover{opacity:.88}
.store-android{background:rgba(255,255,255,.12);color:rgba(255,255,255,.85);border:1px solid rgba(255,255,255,.3);cursor:not-allowed}

/* Footer */
.footer{background:#08291f;color:rgba(255,255,255,.7);padding:56px 0 28px;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.footer .logo{color:#fff;margin-bottom:14px}
.footer h4{color:#fff;font-size:.95rem;margin-bottom:14px}
.footer ul{list-style:none;display:grid;gap:8px}
.footer a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem}

/* Responsive */
@media (max-width:1024px){
  .diff-grid{grid-template-columns:repeat(2,1fr)}
  .member-grid{grid-template-columns:repeat(2,1fr)}
  .story,.story:nth-child(even){grid-template-columns:1fr}
  .story:nth-child(even) .story-img{order:0}
  .story-img{aspect-ratio:16/10;min-height:0}
}
@media (max-width:860px){
  .nav-links,.nav-cta{display:none}
  .menu-btn{display:grid;place-items:center}
  .mobile-menu{position:fixed;top:64px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 20px 20px;box-shadow:0 12px 24px rgba(0,0,0,.06)}
  .mobile-menu.open{display:block}
  .mobile-menu a{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-weight:600}
  .mobile-menu .btn{width:100%;margin-top:16px;border:0}
  .about-grid{text-align:left}
  .about-text p{font-size:1rem}
  .feat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:560px){
  section{padding:56px 0}
  .container{padding:0 16px}
  /* 手机：人物在上方，文字在下方压在渐变上 */
  .hero-banner{min-height:auto;display:block;background-position:72% top;background-size:auto 340px;background-color:#0a3f31}
  .hero-banner::after{background:linear-gradient(180deg,rgba(10,63,49,0) 0,rgba(10,63,49,0) 220px,rgba(10,63,49,.9) 310px,#0a3f31 340px)}
  .hero-content{padding:290px 0 48px}
  .hero .eyebrow{display:none}
  .hero-actions .btn{flex:1 1 100%}
  .diff-grid{grid-template-columns:1fr}
  .member-grid{grid-template-columns:1fr 1fr;gap:12px}
  .member-body{padding:14px 14px 18px}
  .member h3{font-size:1.02rem}
  .member .meta{font-size:.76rem}
  .member p{font-size:.84rem;display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden}
  .verified{font-size:.68rem;padding:4px 8px;top:8px;left:8px}
  .story-body{padding:26px 22px}
  .story h3{font-size:1.25rem}
  .feat-card{padding:26px 22px}
  .cta{padding-bottom:56px}
  .cta-box{padding:48px 20px;border-radius:22px}
  .store-btn{width:100%}
  .faq-item summary{padding:18px}
  .faq-item .answer{padding:0 18px 18px}
}
@media (max-width:380px){
  .member-grid{grid-template-columns:1fr}
}