/* ============================================================
   菲阳科技 V1N · 官网 V2 视觉 ——「现代安全风」
   暖白底 × 墨绿主色 × 安全绿强调 × 警示黄点缀
   （与 V1 工业深蓝+橙红完全不同的风格，类名体系保持一致）
   ============================================================ */
:root{
  --pine:#0E3B2E;          /* 墨绿主色 */
  --pine-2:#14503C;        /* 墨绿加深 */
  --pine-3:#1B6A4E;        /* 墨绿提亮 */
  --green:#17B26A;         /* 安全绿强调 */
  --green-2:#3CCB8C;       /* 浅绿 */
  --lime:#FFC53D;          /* 警示黄点缀 */
  --ink:#17231D;           /* 主文本 */
  --gray:#5C6B63;          /* 次文本 */
  --bg:#FAFBF9;            /* 暖白底 */
  --bg-soft:#F0F5F1;       /* 浅绿软底 */
  --bg-deep:#0A2B20;       /* 深绿底 */
  --line:#E0EAE3;          /* 分隔线 */
  --radius:18px;           /* 大圆角 */
  --shadow:0 12px 34px rgba(14,59,46,.09);
  --maxw:1200px;
  --font:"Segoe UI",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,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}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:999px;font-weight:700;font-size:15px;transition:.22s;cursor:pointer;border:2px solid transparent}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 8px 22px rgba(23,178,106,.32)}
.btn-primary:hover{background:var(--green-2);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-line{background:#fff;color:var(--pine);border-color:var(--line)}
.btn-line:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}

/* Header —— 白底毛玻璃 */
.header{position:sticky;top:0;z-index:50;background:rgba(250,251,249,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);color:var(--pine)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:19px;letter-spacing:.3px;color:var(--pine)}
.logo img{height:40px;width:auto;display:block}
.logo .text{display:flex;flex-direction:column;line-height:1.18}
.logo .text small{font-size:10.5px;font-weight:700;opacity:.7;letter-spacing:.6px;text-transform:uppercase;color:var(--gray)}
.logo .mark{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--pine),var(--green));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:16px}
.nav-links{display:flex;gap:28px;align-items:center;font-size:15px;font-weight:500}
.nav-links a{color:var(--pine);opacity:.82;transition:.2s;position:relative}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:var(--green);border-radius:2px;transition:.25s}
.nav-links a:hover{opacity:1;color:var(--green)}
.nav-links a:hover::after{right:0}
.nav-right{display:flex;align-items:center;gap:14px}
.lang{font-size:13px;padding:6px 14px;border:1px solid var(--line);border-radius:999px;color:var(--pine);opacity:.85}
.lang:hover{opacity:1;border-color:var(--green)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer}
.burger span{width:24px;height:2px;background:var(--pine);border-radius:2px}

/* Hero —— 浅绿光晕 + 墨绿大字 */
.hero{position:relative;background:radial-gradient(900px 480px at 85% -10%,rgba(23,178,106,.16),transparent),radial-gradient(700px 420px at 5% 115%,rgba(255,197,61,.14),transparent),linear-gradient(165deg,var(--bg),var(--bg-soft));color:var(--ink);overflow:hidden;border-bottom:1px solid var(--line)}
.hero-inner{position:relative;z-index:2;padding:0;max-width:740px}
.hero-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding:90px 0 100px}
.hero-img{border-radius:20px;overflow:hidden;box-shadow:0 18px 50px rgba(10,37,64,.18);position:relative}
.hero-img::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(23,178,106,.08),transparent 60%);pointer-events:none}
.hero-img img{width:100%;display:block}
@media(max-width:980px){.hero-wrap{grid-template-columns:1fr;gap:30px;padding:60px 0 70px}.hero-img{order:-1}}
.hero .tag{display:inline-block;font-size:13px;letter-spacing:1px;color:var(--green);font-weight:800;margin-bottom:18px;text-transform:uppercase;background:rgba(23,178,106,.1);padding:6px 14px;border-radius:999px}
.hero h1{font-size:clamp(34px,5vw,56px);line-height:1.14;font-weight:800;margin-bottom:20px;color:var(--pine);letter-spacing:-.5px}
.hero h1 span{color:var(--green)}
.hero p{font-size:18px;color:var(--gray);margin-bottom:32px;max-width:600px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:44px;margin-top:56px;flex-wrap:wrap}
.hero-stats .s b{display:block;font-size:30px;color:var(--pine);letter-spacing:-.5px}
.hero-stats .s span{font-size:13px;color:var(--gray)}
.hero-stats .s b::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--lime);margin-right:8px;vertical-align:middle}

/* Section */
.section{padding:82px 0}
.section.soft{background:var(--bg-soft)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 48px}
.sec-head .ey{color:var(--green);font-weight:800;font-size:14px;letter-spacing:1px;text-transform:uppercase}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);margin:10px 0 12px;color:var(--pine);letter-spacing:-.5px}
.sec-head p{color:var(--gray)}

/* Grid cards —— 白卡 + 绿描边 hover */
.grid{display:grid;gap:22px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.22s;box-shadow:var(--shadow)}
.card:hover{transform:translateY(-5px);border-color:var(--green);box-shadow:0 16px 40px rgba(23,178,106,.16)}
.card-img{margin:-28px -28px 18px;height:170px;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;background:var(--bg-soft)}
.card-img img{width:100%;height:100%;object-fit:cover;display:block}
.card .ico{width:50px;height:50px;border-radius:14px;background:linear-gradient(135deg,var(--pine),var(--pine-3));color:var(--green);display:flex;align-items:center;justify-content:center;font-size:23px;margin-bottom:16px}
.card h3{font-size:18px;color:var(--pine);margin-bottom:8px}
.card p{color:var(--gray);font-size:14.5px}
.card .more{display:inline-block;margin-top:14px;color:var(--green);font-weight:700;font-size:14px}

/* Icon wall —— 行业墙（支持背景图）*/
.wall{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.wall .item{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 12px;text-align:center;transition:.2s;background-size:cover;background-position:center;min-height:112px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.wall .item::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,43,32,.45),rgba(10,43,32,.8))}
.wall .item:hover{transform:translateY(-3px);border-color:var(--green)}
.wall .item span{position:relative;z-index:2;font-size:13.5px;font-weight:700;color:#fff;text-shadow:0 1px 4px rgba(0,0,0,.55)}
.wall .item .e{display:none}

/* Stats band —— 墨绿深底 */
.stats-band{background:linear-gradient(135deg,var(--bg-deep),var(--pine-2));color:#fff}
.stats-band .grid{text-align:center}
.stats-band .b b{font-size:42px;color:var(--green)}
.stats-band .b span{color:#A7C9B6;font-size:14px}

/* News */
.news .card{display:flex;flex-direction:column}
.news .thumb{height:140px;border-radius:12px;background:linear-gradient(135deg,var(--pine-2),var(--pine-3));margin-bottom:16px;position:relative;overflow:hidden}
.news .thumb::after{content:"";position:absolute;inset:0;background:radial-gradient(200px 120px at 80% 20%,rgba(23,178,106,.45),transparent)}
.news .date{font-size:13px;color:var(--green);font-weight:700}
.news h3{font-size:16px;margin:6px 0 8px;color:var(--pine)}

/* CTA —— 绿色渐变 */
.cta{background:linear-gradient(135deg,var(--green),var(--pine-3));color:#fff;border-radius:var(--radius);padding:56px;text-align:center;margin:0 auto;box-shadow:0 18px 44px rgba(23,178,106,.3)}
.cta h2{font-size:30px;margin-bottom:10px}
.cta p{margin-bottom:24px;opacity:.95}
.cta .btn-ghost{border-color:#fff}

/* Footer —— 深绿底 */
.footer{background:var(--bg-deep);color:#A7C9B6;padding:60px 0 28px;font-size:14px}
.footer .top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:30px}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer a{display:block;color:#A7C9B6;padding:5px 0;transition:.2s}
.footer a:hover{color:var(--green-2)}
.footer .brand p{margin:14px 0;max-width:280px}
.footer .bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}

/* Form */
.form{display:grid;gap:16px;max-width:560px}
.form label{font-size:14px;font-weight:600;color:var(--pine)}
.form input,.form textarea,.form select{padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit;width:100%;background:#fff}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(23,178,106,.12)}

/* Page hero —— banner 背景图 + 深绿遮罩 + 白字 */
.page-hero{position:relative;color:#fff;padding:88px 0;background-color:var(--bg-deep);background-size:cover;background-position:center}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(10,43,32,.93) 12%,rgba(10,43,32,.6) 55%,rgba(10,43,32,.28) 100%)}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{font-size:clamp(28px,4vw,42px);margin-bottom:10px;letter-spacing:-.5px;color:#fff}
.page-hero p{color:#d9e7de;max-width:640px}
.page-hero .note{color:#fff;background:rgba(255,197,61,.28);border:1px solid rgba(255,197,61,.4)}

.note{display:inline-block;font-size:12px;color:var(--pine);background:rgba(255,197,61,.22);padding:3px 12px;border-radius:999px;margin-bottom:10px;font-weight:700}

@media(max-width:980px){
  .grid.c3,.grid.c4{grid-template-columns:repeat(2,1fr)}
  .wall{grid-template-columns:repeat(3,1fr)}
  .footer .top{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .nav-links{display:none}
  .burger{display:flex}
  .grid.c2,.grid.c3,.grid.c4{grid-template-columns:1fr}
  .wall{grid-template-columns:repeat(2,1fr)}
  .hero-stats{gap:28px}
  .footer .top{grid-template-columns:1fr}
  .cta{padding:38px 22px}
}