/* ============ 素食百科 ChinaVegan.com ============ */
:root{
  --green-900:#123a2b;
  --green-800:#18543c;
  --green-700:#1f6b4a;
  --green-600:#28855c;
  --green-500:#37a06e;
  --green-400:#5cbc8b;
  --green-100:#e5f4ec;
  --green-50:#f3faf6;
  --amber:#e8a33d;
  --amber-100:#fdf3e2;
  --ink:#16241d;
  --ink-2:#41544a;
  --ink-3:#71857a;
  --line:#dfeae3;
  --bg:#ffffff;
  --bg-soft:#f7fbf8;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 2px 8px rgba(18,58,43,.05),0 12px 32px rgba(18,58,43,.07);
  --shadow-lg:0 4px 14px rgba(18,58,43,.07),0 24px 60px rgba(18,58,43,.11);
  --max:1180px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-size:16px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.narrow{max-width:820px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:-.3px;white-space:nowrap}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  background:linear-gradient(140deg,var(--green-500),var(--green-800));
  display:grid;place-items:center;color:#fff;font-size:19px;
  box-shadow:0 4px 12px rgba(40,133,92,.32);
}
.logo small{display:block;font-size:10.5px;font-weight:600;color:var(--ink-3);letter-spacing:1.4px;line-height:1;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none}
.nav-links a{
  padding:9px 15px;border-radius:10px;font-size:15px;font-weight:600;color:var(--ink-2);
  transition:.18s;white-space:nowrap;
}
.nav-links a:hover{background:var(--green-50);color:var(--green-700)}
.nav-links a.active{color:var(--green-700);background:var(--green-100)}
.nav-cta{
  background:var(--green-700);color:#fff!important;padding:10px 20px!important;border-radius:11px;
  box-shadow:0 4px 12px rgba(31,107,74,.25);
}
.nav-cta:hover{background:var(--green-800)!important;color:#fff!important}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px;transition:.25s}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:12px;font-weight:700;font-size:15.5px;
  transition:.2s;border:1.5px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--green-700);color:#fff;box-shadow:0 6px 18px rgba(31,107,74,.26)}
.btn-primary:hover{background:var(--green-800);transform:translateY(-1px);box-shadow:0 10px 24px rgba(31,107,74,.32)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--green-500);color:var(--green-700);background:var(--green-50)}
.btn-light{background:#fff;color:var(--green-800);box-shadow:var(--shadow)}
.btn-light:hover{transform:translateY(-1px)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(165deg,var(--green-50) 0%,#fff 62%);
  padding:76px 0 88px;
}
.hero::before{
  content:"";position:absolute;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(55,160,110,.13),transparent 68%);
  top:-220px;right:-160px;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:6px 15px;font-size:13px;font-weight:700;color:var(--green-700);
  box-shadow:0 2px 8px rgba(18,58,43,.05);margin-bottom:22px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--green-500);box-shadow:0 0 0 3px var(--green-100)}
h1.hero-title{
  font-size:clamp(34px,4.6vw,54px);line-height:1.16;font-weight:850;
  letter-spacing:-1.4px;color:var(--green-900);margin-bottom:20px;
}
h1.hero-title em{
  font-style:normal;color:var(--green-600);
  background:linear-gradient(180deg,transparent 62%,var(--green-100) 62%);
}
.hero-sub{font-size:17.5px;color:var(--ink-2);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{display:flex;gap:38px;flex-wrap:wrap}
.hero-stats b{display:block;font-size:27px;font-weight:850;color:var(--green-800);letter-spacing:-.8px}
.hero-stats span{font-size:13.5px;color:var(--ink-3);font-weight:600}
.hero-visual{position:relative}
.hero-visual img{border-radius:26px;box-shadow:var(--shadow-lg);aspect-ratio:4/3.4;object-fit:cover}
.hero-badge{
  position:absolute;bottom:-18px;left:-18px;background:#fff;border-radius:16px;
  padding:14px 20px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:12px;
  border:1px solid var(--line);
}
.hero-badge .ico{width:40px;height:40px;border-radius:11px;background:var(--green-100);display:grid;place-items:center;font-size:20px}
.hero-badge b{display:block;font-size:14.5px;font-weight:800}
.hero-badge span{font-size:12.5px;color:var(--ink-3)}

/* ---------- Section ---------- */
section{padding:82px 0}
.sec-head{text-align:center;max-width:660px;margin:0 auto 52px}
.sec-tag{font-size:13px;font-weight:800;color:var(--green-600);letter-spacing:2.4px;text-transform:uppercase;margin-bottom:12px}
.sec-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:850;letter-spacing:-1px;color:var(--green-900);line-height:1.24}
.sec-head p{color:var(--ink-3);font-size:16.5px;margin-top:14px}
.bg-soft{background:var(--bg-soft)}

/* ---------- Cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:.25s;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cfe6da}
.card-img{aspect-ratio:16/10;overflow:hidden;background:var(--green-50)}
.card-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.card:hover .card-img img{transform:scale(1.05)}
.card-body{padding:24px 24px 26px;flex:1;display:flex;flex-direction:column}
.card-tag{
  align-self:flex-start;font-size:12px;font-weight:800;color:var(--green-700);
  background:var(--green-100);padding:4px 11px;border-radius:7px;margin-bottom:13px;letter-spacing:.4px;
}
.card h3{font-size:19px;font-weight:800;letter-spacing:-.3px;margin-bottom:10px;line-height:1.4}
.card p{font-size:14.8px;color:var(--ink-2);flex:1}
.card-link{margin-top:16px;font-size:14px;font-weight:750;color:var(--green-700);display:inline-flex;align-items:center;gap:6px}
.card-link::after{content:"→";transition:.2s}
.card:hover .card-link::after{transform:translateX(4px)}

/* ---------- Feature strip ---------- */
.feature{display:flex;gap:16px;align-items:flex-start}
.feature .ico{
  width:48px;height:48px;border-radius:14px;flex:none;display:grid;place-items:center;
  background:var(--green-100);font-size:23px;
}
.feature h4{font-size:17px;font-weight:800;margin-bottom:6px}
.feature p{font-size:14.5px;color:var(--ink-2)}

/* ---------- Article list ---------- */
.post{display:flex;gap:20px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:.22s}
.post:hover{border-color:#cfe6da;box-shadow:var(--shadow);transform:translateY(-2px)}
.post-thumb{width:150px;height:110px;border-radius:var(--radius-sm);object-fit:cover;flex:none}
.post h3{font-size:18.5px;font-weight:800;margin:8px 0 8px;letter-spacing:-.3px}
.post p{font-size:14.6px;color:var(--ink-2)}
.post .meta{font-size:12.5px;color:var(--ink-3);font-weight:650;display:flex;gap:14px;margin-top:12px}

/* ---------- Nutrition bars ---------- */
.nutrient{margin-bottom:20px}
.nutrient-top{display:flex;justify-content:space-between;font-size:14.5px;font-weight:700;margin-bottom:8px}
.nutrient-top span:last-child{color:var(--green-600)}
.bar{height:9px;border-radius:99px;background:var(--green-100);overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--green-400),var(--green-700))}

/* ---------- Steps ---------- */
.steps{counter-reset:s;display:grid;gap:22px}
.step{
  display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;
}
.step-n{
  counter-increment:s;width:44px;height:44px;border-radius:13px;flex:none;
  background:var(--green-700);color:#fff;display:grid;place-items:center;
  font-weight:850;font-size:18px;box-shadow:0 4px 12px rgba(31,107,74,.24);
}
.step-n::before{content:counter(s)}
.step h4{font-size:18px;font-weight:800;margin-bottom:7px}
.step p{font-size:14.8px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;margin-bottom:12px;overflow:hidden}
.faq-item summary{
  cursor:pointer;padding:19px 24px;font-weight:750;font-size:16px;list-style:none;
  display:flex;justify-content:space-between;gap:20px;align-items:center;transition:.18s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--green-600);font-weight:400;flex:none;transition:.22s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--green-700)}
.faq-item[open] summary{border-bottom:1px solid var(--line);background:var(--green-50)}
.faq-body{padding:18px 24px 22px;font-size:15px;color:var(--ink-2)}

/* ---------- Hero small pages ---------- */
.page-hero{
  background:linear-gradient(160deg,var(--green-900),var(--green-700));
  color:#fff;padding:66px 0 62px;position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 82% 15%,rgba(255,255,255,.09),transparent 46%);
}
.page-hero .wrap{position:relative}
.page-hero .crumbs{font-size:13px;color:rgba(255,255,255,.72);font-weight:650;margin-bottom:16px}
.page-hero .crumbs a:hover{color:#fff;text-decoration:underline}
.page-hero h1{font-size:clamp(28px,3.8vw,44px);font-weight:850;letter-spacing:-1.1px;line-height:1.2}
.page-hero p{margin-top:16px;font-size:16.5px;color:rgba(255,255,255,.85);max-width:640px}

/* ---------- Prose ---------- */
.prose h2{font-size:26px;font-weight:850;margin:44px 0 16px;letter-spacing:-.6px;color:var(--green-900)}
.prose h3{font-size:20px;font-weight:800;margin:32px 0 12px;color:var(--green-800)}
.prose p{margin-bottom:18px;color:var(--ink-2);font-size:16.3px}
.prose ul,.prose ol{margin:0 0 20px 22px;color:var(--ink-2);font-size:16.3px}
.prose li{margin-bottom:10px}
.prose strong{color:var(--ink);font-weight:750}
.prose figure{margin:30px 0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.prose figure img{width:100%}
.prose figcaption{font-size:13.5px;color:var(--ink-3);text-align:center;padding:12px;background:var(--bg-soft)}
.callout{
  background:var(--green-50);border-left:4px solid var(--green-500);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:20px 24px;margin:26px 0;font-size:15.5px;color:var(--ink-2);
}
.callout b{color:var(--green-800)}

/* ---------- Table ---------- */
.tbl{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-size:15px;margin:26px 0}
.tbl th{background:var(--green-50);text-align:left;padding:14px 18px;font-weight:800;color:var(--green-800);font-size:14px}
.tbl td{padding:13px 18px;border-top:1px solid var(--line);color:var(--ink-2)}
.tbl tr:hover td{background:var(--green-50)}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(150deg,var(--green-800),var(--green-600));
  border-radius:26px;padding:52px 48px;color:#fff;text-align:center;position:relative;overflow:hidden;
}
.cta-band::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.07);top:-200px;right:-120px}
.cta-band .wrap{position:relative}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:850;letter-spacing:-.9px;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.86);font-size:16.5px;max-width:560px;margin:0 auto 30px}
.cta-band .mail{font-weight:800;color:#fff;border-bottom:2px solid rgba(255,255,255,.45);padding-bottom:2px}

/* ---------- Footer ---------- */
.site-footer{background:var(--green-900);color:rgba(255,255,255,.72);padding:62px 0 30px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.12)}
.site-footer .logo{color:#fff;margin-bottom:16px}
.site-footer .logo small{color:rgba(255,255,255,.5)}
.foot-about{font-size:14.4px;max-width:330px;line-height:1.8}
.foot-col h5{color:#fff;font-size:14.5px;font-weight:800;margin-bottom:16px;letter-spacing:.2px}
.foot-col a{display:block;font-size:14.2px;margin-bottom:11px;transition:.18s}
.foot-col a:hover{color:#fff;transform:translateX(3px)}
.foot-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:26px;font-size:13.4px}
.foot-bottom a:hover{color:#fff}
.disclaimer{font-size:12.6px;color:rgba(255,255,255,.45);margin-top:16px;line-height:1.7;max-width:900px}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{order:-1}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .nav-links{display:none}
  .burger{display:block}
  .nav-links.open{
    display:flex;flex-direction:column;align-items:stretch;
    position:absolute;top:72px;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--line);padding:14px 24px 22px;gap:4px;
    box-shadow:var(--shadow-lg);
  }
  .nav-links.open a{padding:12px 14px}
  .nav-cta{text-align:center;justify-content:center}
}
@media(max-width:640px){
  .wrap{padding:0 18px}
  section{padding:60px 0}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .post{flex-direction:column}
  .post-thumb{width:100%;height:180px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .cta-band{padding:40px 26px}
  .hero{padding:52px 0 64px}
  .hero-stats{gap:26px}
  .hero-badge{left:12px;bottom:-14px}
  .step{grid-template-columns:1fr;gap:14px}
}