/* =========================================================
   宁海粤航模具有限公司 官网首页样式
   NINGHAI YUEHANG MOLD CO., LTD - style.css
   ========================================================= */

:root{
  --navy:#0a2540;
  --navy-2:#10345f;
  --blue:#14509c;
  --sky:#2e8be6;
  --accent:#e23b2e;
  --accent-dark:#c52f24;
  --bg:#f4f7fc;
  --white:#ffffff;
  --text:#2a3b52;
  --muted:#6b7a90;
  --line:#e4ebf4;
  --radius:14px;
  --shadow:0 14px 40px rgba(10,37,64,.10);
  --shadow-sm:0 6px 18px rgba(10,37,64,.08);
  --font:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{width:min(1240px,92%);margin:0 auto}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 34px;border-radius:999px;font-size:15px;font-weight:700;letter-spacing:1px;transition:all .35s ease;position:relative;overflow:hidden}
.btn-solid{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;box-shadow:0 10px 26px rgba(226,59,46,.35)}
.btn-solid:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(226,59,46,.45)}
.btn-ghost{border:2px solid rgba(255,255,255,.75);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:#fff;color:var(--navy);transform:translateY(-3px)}
.btn-sm{padding:10px 24px;font-size:14px}
.btn-lg{padding:16px 44px;font-size:16px}

/* ---------- 版块标题 ---------- */
.section{padding:96px 0;position:relative}
.section-head{text-align:center;margin-bottom:56px}
.section-kicker{color:var(--accent);font-size:13px;font-weight:800;letter-spacing:5px;text-transform:uppercase;margin-bottom:10px}
.section-title{font-size:38px;font-weight:800;color:var(--navy);letter-spacing:2px;position:relative;display:inline-block;padding-bottom:16px}
.section-title::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:64px;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--accent),#f0850b)}
.section-desc{color:var(--muted);margin-top:16px;font-size:16px}
.section-head.light .section-title{color:#fff}
.section-head.light .section-desc{color:rgba(255,255,255,.72)}

/* =========================================================
   顶部导航
   ========================================================= */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;transition:all .4s ease;padding:14px 0}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{position:relative;height:52px;width:auto}
.brand-logo img{height:52px;width:auto;display:block;transition:opacity .4s ease}
.brand-logo .brand-logo-color{position:absolute;inset:0;opacity:0}
.brand-text{display:flex;flex-direction:column;line-height:1.2;transition:color .4s ease}
.brand-text strong{font-size:19px;font-weight:800;letter-spacing:1px;color:#fff;white-space:nowrap}
.brand-text small{font-size:10px;letter-spacing:2px;color:rgba(255,255,255,.7);margin-top:3px;white-space:nowrap}
.nav{display:flex;gap:4px}
.nav-link{position:relative;padding:8px 14px;font-size:15px;font-weight:600;color:rgba(255,255,255,.85);border-radius:8px;transition:all .3s ease}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2.5px;border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:#fff}
.header-actions{display:flex;align-items:center;gap:14px}
.header-tel{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:700;font-size:15px;padding:9px 18px;border:1.5px solid rgba(255,255,255,.45);border-radius:999px;transition:all .3s ease}
.header-tel svg{width:17px;height:17px}
.header-tel:hover{background:#fff;color:var(--navy);border-color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{width:24px;height:2.5px;background:#fff;border-radius:2px;transition:all .35s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* 滚动后状态 */
.header.scrolled{background:rgba(255,255,255,.96);backdrop-filter:blur(12px);box-shadow:0 6px 24px rgba(10,37,64,.10);padding:8px 0}
.header.scrolled .brand-text strong{color:var(--navy)}
.header.scrolled .brand-text small{color:var(--muted)}
.header.scrolled .nav-link{color:var(--text)}
.header.scrolled .nav-link:hover,.header.scrolled .nav-link.active{color:var(--accent)}
.header.scrolled .header-tel{color:var(--navy);border-color:var(--navy)}
.header.scrolled .header-tel:hover{background:var(--navy);color:#fff}
.header.scrolled .nav-toggle span{background:var(--navy)}
.header.scrolled .brand-logo .brand-logo-white{opacity:0}
.header.scrolled .brand-logo .brand-logo-color{opacity:1}

/* =========================================================
   Banner 轮播
   ========================================================= */
.hero{position:relative;height:100vh;height:100svh;min-height:620px}
.hero-swiper{width:100%;height:100%}
.hero-swiper .swiper-slide{position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.08);transition:transform 7s ease-out}
.hero-swiper .swiper-slide-active .hero-bg{transform:scale(1)}
.hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,20,42,.88) 0%,rgba(8,30,58,.66) 38%,rgba(8,30,58,.18) 70%,rgba(8,30,58,.42) 100%)}
.hero-content{position:relative;z-index:2;height:100%;display:flex;align-items:center}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;color:#9fd0ff;font-size:14px;font-weight:700;letter-spacing:4px;margin-bottom:20px;opacity:0}
.hero-kicker::before{content:"";width:36px;height:2px;background:var(--accent)}
.hero-title{font-size:clamp(38px,5.6vw,64px);font-weight:900;color:#fff;letter-spacing:4px;line-height:1.18;margin-bottom:22px;opacity:0}
.hero-sub{font-size:clamp(15px,1.6vw,18px);color:rgba(255,255,255,.88);line-height:1.9;margin-bottom:36px;max-width:640px;opacity:0}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;opacity:0}

/* 轮播文字入场动画 */
.hero-swiper .swiper-slide-active .hero-kicker{animation:fadeUp .8s ease .35s forwards}
.hero-swiper .swiper-slide-active .hero-title{animation:fadeUp .9s ease .55s forwards}
.hero-swiper .swiper-slide-active .hero-sub{animation:fadeUp .9s ease .75s forwards}
.hero-swiper .swiper-slide-active .hero-btns{animation:fadeUp .9s ease .95s forwards}
@keyframes fadeUp{from{opacity:0;transform:translateY(36px)}to{opacity:1;transform:translateY(0)}}

.hero-pagination{position:absolute;bottom:32px;left:0;right:0;z-index:5;text-align:center}
.hero-pagination .swiper-pagination-bullet{width:30px;height:4px;border-radius:4px;background:rgba(255,255,255,.4);opacity:1;transition:all .35s ease}
.hero-pagination .swiper-pagination-bullet-active{background:var(--accent);width:48px}
.hero-nav{width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.12);backdrop-filter:blur(6px);color:#fff;transition:all .3s ease;border:1px solid rgba(255,255,255,.25)}
.hero-nav::after{font-size:18px;font-weight:900}
.hero-nav:hover{background:var(--accent);border-color:var(--accent)}

/* =========================================================
   数据统计
   ========================================================= */
.stats{background:linear-gradient(120deg,var(--navy) 0%,var(--blue) 100%);padding:0;transform:translateY(0)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;background:rgba(255,255,255,.08)}
.stat-item{background:linear-gradient(120deg,rgba(10,37,64,.4),rgba(20,80,156,.25));text-align:center;padding:40px 20px;display:flex;flex-direction:column;gap:6px;backdrop-filter:blur(4px)}
.stat-num{font-size:44px;font-weight:900;color:#fff;letter-spacing:1px;font-family:"Arial Black",Arial,sans-serif}
.stat-label{color:rgba(255,255,255,.75);font-size:14px;letter-spacing:1px}

/* =========================================================
   关于我们
   ========================================================= */
.about{background:var(--white)}
.about-grid{display:grid;grid-template-columns:1fr 1.08fr;gap:60px;align-items:center}
.about-media{position:relative}
.about-img{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.about-img img{width:100%;height:440px;object-fit:cover;transition:transform .8s ease}
.about-img:hover img{transform:scale(1.05)}
.about-badge{position:absolute;left:22px;bottom:22px;background:rgba(10,37,64,.9);backdrop-filter:blur(6px);color:#fff;padding:14px 22px;border-radius:12px;display:flex;flex-direction:column;line-height:1.3;border-left:4px solid var(--accent)}
.about-badge strong{font-size:22px;letter-spacing:1px}
.about-badge span{font-size:12px;color:rgba(255,255,255,.75);margin-top:3px}
.about-points{display:flex;gap:14px;margin-top:18px}
.point{flex:1;background:linear-gradient(135deg,#eef4fc,#fff);border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;align-items:center;justify-content:center;gap:10px;transition:all .3s ease}
.point i{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--accent),#f0850b);color:#fff;font-style:normal;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.point span{font-weight:700;color:var(--navy)}
.point:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.about-text h3{font-size:26px;font-weight:800;color:var(--navy);line-height:1.5;margin-bottom:18px}
.about-text p{color:var(--muted);margin-bottom:14px;text-align:justify}
.about-text p strong{color:var(--accent)}
.about-list{margin:18px 0 26px;display:grid;gap:10px}
.about-list li{position:relative;padding-left:28px;color:var(--text);font-weight:600}
.about-list li::before{content:"✓";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,var(--sky),var(--blue));color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:900}

/* =========================================================
   产品中心（图四样式：卡片轮播）
   ========================================================= */
.products{background:var(--bg)}
.products-swiper{position:relative;padding:0 8px 54px;overflow:visible}
.products-swiper .swiper-slide{height:auto}
.p-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;height:100%;transition:all .4s ease}
.p-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--sky)}
.p-img{position:relative;aspect-ratio:4/3.1;overflow:hidden;background:#eef2f8}
.p-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
.p-card:hover .p-img img{transform:scale(1.08)}
.p-tag{position:absolute;top:12px;left:12px;background:linear-gradient(135deg,var(--blue),var(--navy-2));color:#fff;font-size:12px;font-weight:700;padding:4px 13px;border-radius:999px;letter-spacing:1px}
.p-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.p-body h4{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:6px}
.p-body p{font-size:13px;color:var(--muted);line-height:1.7;flex:1}
.p-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:1px;transition:all .3s ease}
.p-more::after{content:"→";transition:transform .3s ease}
.p-more:hover{color:var(--accent)}
.p-more:hover::after{transform:translateX(4px)}
.p-nav{width:46px;height:46px;border-radius:50%;background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(20,80,156,.35);transition:all .3s ease}
.p-nav::after{font-size:16px;font-weight:900}
.p-nav:hover{background:var(--accent)}
.p-pagination{position:absolute;bottom:0;left:0;right:0;text-align:center}
.p-pagination .swiper-pagination-bullet{width:24px;height:5px;border-radius:4px;background:#c3d3e6;opacity:1;transition:all .35s ease}
.p-pagination .swiper-pagination-bullet-active{background:var(--accent);width:38px}

/* =========================================================
   图五：精工设备横幅（生产设备板块）
   ========================================================= */
.equipment{padding:52px 0}
.mfg-banner{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.mfg-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.mfg-overlay{position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,22,44,.94) 0%,rgba(8,30,58,.85) 45%,rgba(8,30,58,.45) 100%)}
.mfg-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;padding:52px 0}
.mfg-left .mfg-kicker{display:inline-flex;align-items:center;gap:10px;color:#8cc8ff;font-size:13px;font-weight:800;letter-spacing:5px;margin-bottom:16px}
.mfg-left .mfg-kicker::before{content:"";width:34px;height:2px;background:var(--accent)}
.mfg-left h2{font-size:clamp(30px,3.4vw,42px);font-weight:900;color:#fff;letter-spacing:3px;line-height:1.3;margin-bottom:18px}
.mfg-left p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.95;max-width:460px;margin-bottom:30px}
.mfg-right{display:grid;gap:16px}
.mfg-item{display:flex;gap:18px;align-items:flex-start;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:20px 22px;backdrop-filter:blur(6px);transition:all .35s ease}
.mfg-item:hover{background:rgba(255,255,255,.13);transform:translateX(6px)}
.mfg-no{flex:0 0 46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--accent),#f0850b);color:#fff;font-size:16px;font-weight:900;display:flex;align-items:center;justify-content:center;letter-spacing:1px}
.mfg-item h4{color:#fff;font-size:17px;font-weight:800;margin-bottom:4px}
.mfg-item p{color:rgba(255,255,255,.7);font-size:13px}

/* =========================================================
   新闻中心
   ========================================================= */
.news{background:var(--bg)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;gap:18px;transition:all .35s ease;box-shadow:var(--shadow-sm)}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--sky)}
.news-date{flex:0 0 64px;height:64px;border-radius:12px;background:linear-gradient(160deg,var(--navy),var(--blue));color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.2}
.news-date strong{font-size:22px;font-weight:900}
.news-date span{font-size:11px;color:rgba(255,255,255,.75);letter-spacing:1px;margin-top:2px}
.news-body h4{font-size:16px;font-weight:800;color:var(--navy);line-height:1.55;margin-bottom:8px;transition:color .3s}
.news-card:hover .news-body h4{color:var(--accent)}
.news-body p{font-size:13px;color:var(--muted);line-height:1.75;margin-bottom:10px}
.news-more{font-size:13px;font-weight:700;color:var(--blue);letter-spacing:1px}
.news-more::after{content:" →";transition:transform .3s ease;display:inline-block}
.news-more:hover{color:var(--accent)}
.news-more:hover::after{transform:translateX(4px)}

/* =========================================================
   联系 CTA
   ========================================================= */
.cta{background:linear-gradient(120deg,#e23b2e,#f0850b);position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cpath d='M60 0H0v60' fill='none' stroke='rgba(255,255,255,0.12)' stroke-width='1'/%3E%3C/svg%3E")}
.cta-inner{text-align:center;padding:76px 0;position:relative;z-index:1}
.cta-inner h2{color:#fff;font-size:34px;font-weight:900;letter-spacing:2px;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.92);font-size:16px;margin-bottom:30px}
.cta .btn-solid{background:#fff;color:var(--accent);box-shadow:0 12px 30px rgba(0,0,0,.22)}
.cta .btn-solid:hover{transform:translateY(-3px);background:#fff;color:var(--accent-dark)}

/* =========================================================
   页脚
   ========================================================= */
.footer{background:#081c33;color:rgba(255,255,255,.72)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 48px}
.footer-brand .footer-logo{height:46px;margin-bottom:18px;filter:brightness(0) invert(1)}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6)}
.footer-col h4{color:#fff;font-size:16px;font-weight:800;margin-bottom:18px;letter-spacing:1px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:30px;height:3px;border-radius:3px;background:var(--accent)}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.62);padding:5px 0;transition:all .3s ease}
.footer-col a:hover{color:#fff;padding-left:8px}
.footer-contact p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62)}
.footer-contact a{display:inline;padding:0;color:rgba(255,255,255,.62)}
.footer-contact a:hover{color:#fff;padding:0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.45)}

/* =========================================================
   浮动按钮
   ========================================================= */
.float-phone,.back-top{position:fixed;right:24px;z-index:900;width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px rgba(10,37,64,.25);transition:all .35s ease}
.float-phone{bottom:96px;background:linear-gradient(135deg,var(--accent),#f0850b);color:#fff}
.float-phone svg{width:24px;height:24px}
.float-phone:hover{transform:translateY(-4px) scale(1.06)}
.back-top{bottom:32px;background:var(--navy);color:#fff;opacity:0;visibility:hidden;transform:translateY(14px)}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top svg{width:22px;height:22px}
.back-top:hover{background:var(--accent)}

/* =========================================================
   滚动入场动画
   ========================================================= */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:translateY(0)}
.reveal[data-delay="60"]{transition-delay:.06s}
.reveal[data-delay="100"]{transition-delay:.1s}
.reveal[data-delay="120"]{transition-delay:.12s}
.reveal[data-delay="150"]{transition-delay:.15s}
.reveal[data-delay="180"]{transition-delay:.18s}
.reveal[data-delay="200"]{transition-delay:.2s}
.reveal[data-delay="240"]{transition-delay:.24s}
.reveal[data-delay="300"]{transition-delay:.3s}
.reveal[data-delay="360"]{transition-delay:.36s}
.reveal[data-delay="400"]{transition-delay:.4s}
.reveal[data-delay="420"]{transition-delay:.42s}
.reveal[data-delay="480"]{transition-delay:.48s}
.reveal[data-delay="500"]{transition-delay:.5s}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1024px){
  .about-grid{grid-template-columns:1fr;gap:40px}
  .news-grid{grid-template-columns:1fr 1fr}
  .mfg-grid{grid-template-columns:1fr;gap:32px;padding:44px 0}
  .mfg-left p{max-width:100%}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:72px 0}
  .section-title{font-size:30px}
  .cta-inner{padding:60px 0}
  .cta-inner h2{font-size:26px}
  .nav{position:fixed;top:0;right:-100%;width:min(320px,82%);height:100vh;background:var(--navy);flex-direction:column;padding:96px 30px 30px;gap:6px;transition:right .4s ease;z-index:999;box-shadow:-20px 0 60px rgba(0,0,0,.3)}
  .nav.open{right:0}
  .nav-link{color:#fff;padding:13px 10px;border-bottom:1px solid rgba(255,255,255,.08);font-size:16px}
  .nav-link::after{display:none}
  .nav-toggle{display:flex;z-index:1001}
  .header-tel span{display:none}
  .header-tel{padding:9px 12px}
  .brand-logo{height:42px}
  .brand-text strong{font-size:16px}
  .hero{height:100vh;height:100svh;min-height:560px}
  .hero-title{letter-spacing:2px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-num{font-size:36px}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .float-phone{bottom:88px}
  .hero-nav{display:none}
}
@media (max-width:480px){
  .hero-title{font-size:30px;letter-spacing:2px}
  .about-img img{height:320px}
  .mfg-item{padding:16px 16px}
  .news-card{padding:20px;gap:14px}
  .news-date{flex-basis:56px;height:56px}
}