/* ============================================================
   创绿源官网 · 深蓝水青科技风设计系统
   桌面 / 平板 / 手机 三端响应式
   ============================================================ */
:root{
  --navy-900:#062236; --navy-800:#0a3352; --navy-700:#0e4470; --navy-600:#13608c;
  --teal-600:#0e9c8f; --teal-500:#14b8a6; --teal-400:#2dd4bf; --teal-200:#a7f3ec;
  --ink-900:#12283a; --ink-700:#33495c; --ink-500:#5d7488; --ink-400:#8298ab;
  --line:#e2ecf3; --bg-soft:#f4f9fc; --bg-white:#ffffff;
  --grad-navy:linear-gradient(135deg,#06223a 0%,#0a3352 45%,#0e4470 100%);
  --grad-teal:linear-gradient(135deg,#0e9c8f 0%,#14b8a6 100%);
  --shadow-md:0 10px 30px -12px rgba(6,34,54,.18);
  --shadow-lg:0 28px 64px -20px rgba(6,34,54,.28);
  --radius:16px; --radius-sm:10px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --head-h:76px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink-900);background:var(--bg-white);line-height:1.75;font-size:16px;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.wrap{width:min(1200px,92vw);margin-inline:auto}
main{display:block}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:.85em 2em;border-radius:999px;font-size:16px;font-weight:600;letter-spacing:.02em;transition:transform .25s,box-shadow .25s,background .25s,color .25s;white-space:nowrap}
.btn-primary{background:var(--grad-teal);color:#fff;box-shadow:0 10px 24px -8px rgba(20,184,166,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px -8px rgba(20,184,166,.65)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.55);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-2px)}
.btn-lg{padding:1em 2.6em;font-size:17px}
.sec .btn-ghost,.page-banner .btn-ghost{color:var(--navy-800);border-color:var(--navy-800);background:transparent}
.sec .btn-ghost:hover{background:var(--navy-800);color:#fff}

/* ---------- 区块标题 ---------- */
.sec{padding:clamp(22px,2.2vw,32px) 0;position:relative}
.sec-head{margin-bottom:clamp(20px,2.4vw,32px)}
.sec-en{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.32em;text-transform:uppercase;color:var(--teal-600);margin-bottom:14px;position:relative;padding-left:44px}
.sec-en::before{content:"";position:absolute;left:0;top:50%;width:32px;height:2px;background:var(--teal-500)}
.sec-head.ta-c{text-align:center}
.sec-head.ta-c .sec-en{padding-left:44px}
.sec-head h2{font-size:clamp(26px,3.4vw,42px);font-weight:800;color:var(--navy-900);line-height:1.3;letter-spacing:.01em}
.sec-sub{margin-top:14px;color:var(--ink-500);font-size:clamp(15px,1.4vw,17px);max-width:640px}
.sec-head.ta-c .sec-sub{margin-inline:auto}
.sec-head.on-dark h2{color:#fff}
.sec-head.on-dark .sec-sub{color:rgba(255,255,255,.72)}
.sec-head.on-dark .sec-en{color:var(--teal-200)}
.sec-head.on-dark .sec-en::before{background:var(--teal-200)}
.sec-more{text-align:center;margin-top:clamp(36px,4vw,56px)}

/* ---------- 头部导航 ---------- */
.site-head{position:fixed;inset:0 0 auto 0;z-index:100;height:var(--head-h);transition:background .35s,box-shadow .35s,backdrop-filter .35s}
.site-head::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,34,54,.42),rgba(6,34,54,0));opacity:1;transition:opacity .35s;pointer-events:none}
.site-head.solid{background:rgba(255,255,255,.94);box-shadow:0 4px 24px -8px rgba(6,34,54,.14);backdrop-filter:blur(12px)}
.site-head.solid::before{opacity:0}
.head-inner{height:var(--head-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:46px;height:46px;flex:0 0 auto;display:block;object-fit:contain}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:clamp(15px,1.4vw,18px);color:#fff;transition:color .35s;letter-spacing:.02em}
.brand-text small{font-size:11px;color:rgba(255,255,255,.75);transition:color .35s;letter-spacing:.04em}
.site-head.solid .brand-text strong{color:var(--navy-900)}
.site-head.solid .brand-text small{color:var(--ink-500)}
.site-nav{display:flex;align-items:center;gap:0}
.site-nav a{padding:.55em .78em;border-radius:8px;font-size:15px;font-weight:500;color:rgba(255,255,255,.92);white-space:nowrap;transition:color .25s,background .25s}
.site-nav a:hover{background:rgba(255,255,255,.14)}
.site-nav a.on{color:#fff;font-weight:700}
.site-nav a.on::after{content:"";display:block;height:2px;background:var(--teal-400);border-radius:2px;margin-top:3px}
.site-head.solid .site-nav a{color:var(--ink-700)}
.site-head.solid .site-nav a:hover{background:var(--bg-soft);color:var(--navy-800)}
.site-head.solid .site-nav a.on{color:var(--teal-600)}
.nav-cta{margin-left:10px;background:var(--grad-teal)!important;color:#fff!important;font-weight:700;padding:.6em 1.3em!important}
.nav-cta:hover{transform:translateY(-1px)}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:10px;z-index:110}
.nav-toggle span{width:24px;height:2.5px;background:#fff;border-radius:2px;transition:transform .3s,opacity .3s,background .3s}
.site-head.solid .nav-toggle span{background:var(--navy-900)}
.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)}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:clamp(560px,86vh,900px);display:grid;place-items:center;text-align:center;color:#fff;overflow:hidden;background:var(--navy-900)}
.hero-slides{position:absolute;inset:0}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transform:scale(1.06);transition:opacity 1.4s ease,transform 7s linear;filter:brightness(1.1) saturate(1.06)}
.hero-slide.on{opacity:1;transform:scale(1)}
/* 首屏遮罩：轻压暗保证标题可读，尽量保留照片明亮度与色彩 */
.hero-mask{position:absolute;inset:0;background:
  radial-gradient(ellipse 78% 64% at 50% 44%,rgba(6,34,54,.56) 0%,rgba(6,34,54,.32) 60%,rgba(6,34,54,.06) 100%),
  linear-gradient(180deg,rgba(6,34,54,.40) 0%,rgba(6,34,54,.20) 48%,rgba(6,34,54,.66) 100%)}
.hero-inner{position:relative;z-index:2;padding:calc(var(--head-h) + 40px) 0 90px;max-width:880px}
.hero-kicker{font-size:13px;letter-spacing:.42em;text-transform:uppercase;color:var(--teal-200);margin-bottom:22px;font-weight:600}
.hero-title{font-size:clamp(34px,5.6vw,64px);font-weight:900;line-height:1.22;letter-spacing:.02em;text-shadow:0 4px 30px rgba(0,0,0,.35)}
.hero-sub{margin-top:18px;font-size:clamp(16px,2vw,21px);color:rgba(255,255,255,.88);letter-spacing:.06em}
.hero-btns{margin-top:44px;display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
.hero-dots{position:absolute;bottom:96px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:3}
.hero-dot{width:10px;height:10px;border-radius:999px;background:rgba(255,255,255,.4);transition:all .3s;padding:0}
.hero-dot.on{width:34px;background:var(--teal-400)}
.hero-scroll{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);width:26px;height:44px;border:2px solid rgba(255,255,255,.6);border-radius:999px;z-index:3}
.hero-scroll span{position:absolute;left:50%;top:8px;width:4px;height:9px;background:#fff;border-radius:4px;transform:translateX(-50%);animation:scrollHint 1.8s infinite}
@keyframes scrollHint{0%{opacity:1;top:8px}70%{opacity:0;top:24px}100%{opacity:0}}

/* ---------- 数据带 ---------- */
.stats{background:var(--navy-900);position:relative;padding:clamp(40px,5vw,64px) 0}
.stats.has-bg{background-size:cover;background-position:center}
.stats.has-bg::after{content:"";position:absolute;inset:0;background:rgba(6,34,54,.62)}
.stats::before{content:"";position:absolute;inset:0;background:radial-gradient(1200px 300px at 20% 0%,rgba(20,184,166,.16),transparent 60%)}
.stats-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-num{display:block;font-size:clamp(30px,3.6vw,48px);font-weight:900;color:var(--teal-200);line-height:1.1;letter-spacing:.01em}
.stat-label{display:block;margin-top:8px;color:rgba(255,255,255,.75);font-size:clamp(13px,1.3vw,15px);letter-spacing:.06em}

/* ---------- 关于我们 ---------- */
.sec-about{background:var(--bg-white)}
.about-grid{display:grid;grid-template-columns:1fr;gap:0}
.about-body{color:var(--ink-700);font-size:14.5px;line-height:1.9;max-width:none;font-weight:400;text-align:justify}
.about-body p{margin-bottom:.72em;break-inside:avoid}
.about-body strong,.about-body b{font-weight:400;color:var(--navy-800)}
.about-body h4{font-size:14.5px;font-weight:400;color:var(--navy-800);margin:1.1em 0 .45em}
.about-body .about-lead{font-size:15px;font-weight:400;color:var(--navy-900);letter-spacing:.02em;
  margin-bottom:.7em;padding-left:12px;border-left:3px solid var(--teal-500);line-height:1.6}
.about-body{max-height:none}
.about-body.fold{max-height:11.5em;overflow:hidden;position:relative;mask-image:linear-gradient(180deg,#000 60%,transparent)}
.about-more{display:none;margin-top:6px;color:var(--teal-600);font-weight:700;font-size:15px;padding:8px 0}
.about-stat{margin-top:30px;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.about-stat strong{font-size:34px;font-weight:900;color:var(--navy-800);line-height:1}
.about-stat em{font-style:normal;color:var(--teal-500)}
.about-stat span{font-size:14px;color:var(--ink-500)}
.about-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.about-tags span{padding:.45em 1.1em;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;font-size:13.5px;color:var(--navy-700);font-weight:500}
.about-visual{position:relative}
.about-img{border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg)}
.about-img img{width:100%;aspect-ratio:4/3.4;object-fit:cover}
.about-float{position:absolute;right:-14px;bottom:-22px;background:#fff;border-radius:16px;padding:18px 24px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:2px;border:1px solid var(--line)}
.about-float strong{font-size:32px;font-weight:900;color:var(--navy-800);line-height:1}
.about-float em{font-style:normal;color:var(--teal-500)}
.about-float span{font-size:12.5px;color:var(--ink-500)}

/* ---------- 核心服务 ---------- */
.sec-services{background:var(--bg-soft)}
.svc-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,3vw,40px);align-items:stretch}
.svc-card{background:#fff;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-md);transition:transform .35s,box-shadow .35s;display:flex;flex-direction:column;height:100%}
.svc-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.svc-img{overflow:hidden;flex:none}
.svc-img img{width:100%;aspect-ratio:16/9.4;object-fit:cover;display:block;transition:transform .6s}
.svc-card:hover .svc-img img{transform:scale(1.06)}
.svc-body{padding:clamp(22px,2.6vw,34px);position:relative;flex:1;display:flex;flex-direction:column}
.svc-icon{position:absolute;top:-26px;left:clamp(22px,2.6vw,34px);width:52px;height:52px;border-radius:14px;background:var(--grad-teal);display:grid;place-items:center;font-size:24px;color:#fff;box-shadow:0 10px 22px -6px rgba(20,184,166,.5)}
.svc-icon svg{width:25px;height:25px;display:block}
.svc-body h3{font-size:clamp(19px,2vw,23px);font-weight:800;color:var(--navy-900);margin-top:18px}
.svc-en{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--teal-600);font-weight:700;margin-top:2px}
.svc-desc{margin-top:14px;color:var(--ink-700);font-size:15px;line-height:1.78;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.svc-link{display:inline-block;margin-top:auto;padding-top:18px;color:var(--teal-600);font-weight:700;font-size:15px}
.svc-link:hover{color:var(--navy-800)}

/* ---------- 工艺流程 ---------- */
.sec-process{background:var(--bg-white)}
.proc-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.proc-flow::before{content:"";position:absolute;top:64px;left:6%;right:6%;height:2px;background:linear-gradient(90deg,var(--teal-200),var(--teal-500),var(--teal-200));z-index:0}
.proc-step{position:relative;z-index:1;text-align:center;background:#fff;border-radius:18px;padding:26px 18px 24px;border:1px solid var(--line);transition:transform .3s,box-shadow .3s}
.proc-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.proc-num{position:absolute;top:-18px;left:50%;transform:translateX(-50%);width:38px;height:38px;border-radius:999px;background:var(--grad-navy);color:#fff;font-weight:800;display:grid;place-items:center;font-size:16px;box-shadow:0 8px 16px -4px rgba(6,34,54,.4)}
.proc-img{margin:14px auto 14px;width:100%;border-radius:12px;overflow:hidden}
.proc-img img{aspect-ratio:16/9;object-fit:cover;width:100%}
.proc-step h4{font-size:18px;font-weight:800;color:var(--navy-900)}
.proc-step p{margin-top:8px;font-size:14px;color:var(--ink-500);line-height:1.7}
.proc-note{margin-top:22px;text-align:center;color:var(--ink-500);font-size:15px;max-width:820px;margin-inline:auto;padding:16px 22px;background:var(--bg-soft);border-radius:12px;border:1px dashed var(--line)}

/* ---------- 工程案例 ---------- */
.sec-cases{background:var(--bg-soft)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(22px,2.6vw,34px)}
.case-card{background:#fff;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-md);transition:transform .35s,box-shadow .35s;display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.case-img{overflow:hidden}
.case-img img{width:100%;aspect-ratio:4/3.1;object-fit:cover;transition:transform .6s}
.case-card:hover .case-img img{transform:scale(1.07)}
.case-body{padding:26px 26px 28px;flex:1;display:flex;flex-direction:column}
.case-en{font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--teal-600);font-weight:700}
.case-body h3{font-size:20px;font-weight:800;color:var(--navy-900);margin-top:6px}
.case-body p{margin-top:10px;color:var(--ink-500);font-size:14.5px;flex:1}
.case-more{margin-top:14px;color:var(--teal-600);font-weight:700;font-size:14.5px}
.case-card:hover .case-more{color:var(--navy-800)}

/* ---------- 视频 ---------- */
.sec-video{background:var(--bg-white);padding-bottom:clamp(20px,2vw,28px)}
.sec-video .sec-head h2{color:var(--navy-900)}
.sec-video .sec-head .sec-en{color:var(--teal-600)}
.sec-video .sec-head .sec-en::before{background:var(--teal-500)}
/* 视频：居中大播放器（比正文更宽、带圆角与投影） */
.video-box{width:min(1240px,94vw);max-width:none;margin-inline:auto;border-radius:18px;overflow:hidden;background:#0b0f14;
  border:1px solid var(--line);box-shadow:0 30px 70px -34px rgba(6,34,54,.45)}
.video-el{width:100%;aspect-ratio:16/9;max-height:none;background:#0b0f14;display:block}
.video-cap{text-align:center;color:var(--ink-500);font-size:14px;margin-top:14px;margin-bottom:0}

/* ---------- 文章卡片 ---------- */
.sec-posts{background:var(--bg-white)}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,2.4vw,30px)}
.post-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 24px 24px;display:flex;flex-direction:column;gap:10px;transition:transform .3s,box-shadow .3s,border-color .3s}
.post-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.post-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.post-cat{font-size:12px;font-weight:700;color:var(--teal-600);background:rgba(20,184,166,.1);padding:.3em .9em;border-radius:999px}
.post-top time{font-size:12.5px;color:var(--ink-400)}
.post-card h3{font-size:17.5px;font-weight:800;color:var(--navy-900);line-height:1.5}
.post-card p{color:var(--ink-500);font-size:14px;flex:1}
.post-more{color:var(--teal-600);font-weight:700;font-size:14px}
.post-card:hover .post-more{color:var(--navy-800)}

/* ---------- Why Us ---------- */
.why{background:var(--grad-navy);padding:clamp(30px,3.2vw,46px) 0;position:relative;overflow:hidden}
.why::before{content:"";position:absolute;inset:0;background:radial-gradient(900px 400px at 85% 20%,rgba(20,184,166,.2),transparent 60%)}
.why-grid{position:relative}
.why-points{display:grid;grid-template-columns:1fr 1fr;gap:14px 28px;margin-top:34px}
.why-points li{display:flex;gap:12px;align-items:flex-start;color:rgba(255,255,255,.88);font-size:15.5px}
.why-points i{flex-shrink:0;width:24px;height:24px;border-radius:999px;background:var(--grad-teal);color:#fff;font-style:normal;font-size:13px;font-weight:800;display:grid;place-items:center;margin-top:4px}
.why-cta{margin-top:44px;display:flex;align-items:center;gap:22px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:24px 28px;flex-wrap:wrap}
.why-cta-ico{font-size:34px}
.why-cta strong{display:block;color:#fff;font-size:19px}
.why-cta p{color:rgba(255,255,255,.7);font-size:14px;margin-top:4px;max-width:520px}
.why-cta .btn{margin-left:auto}

/* ---------- FAQ ---------- */
.sec-faq{background:var(--bg-soft)}
.faq-list{max-width:none;margin-inline:auto;display:grid;grid-template-columns:repeat(3,1fr);
  gap:16px;align-items:start}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .3s}
.faq-item[open]{box-shadow:var(--shadow-md);border-color:transparent}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-weight:700;color:var(--navy-900);font-size:16px;line-height:1.55;display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{flex-shrink:0;width:26px;height:26px;margin-top:1px;border-radius:999px;background:var(--bg-soft);position:relative;transition:transform .3s,background .3s}
.faq-item summary i::before,.faq-item summary i::after{content:"";position:absolute;inset:50% 7px auto;height:2px;background:var(--teal-600);transform:translateY(-50%);transition:background .3s}
.faq-item summary i::after{transform:translateY(-50%) rotate(90deg)}
.faq-item[open] summary i{transform:rotate(180deg);background:var(--grad-teal)}
.faq-item[open] summary i::before,.faq-item[open] summary i::after{background:#fff}
.faq-item[open] summary i::after{opacity:0}
.faq-a{padding:0 20px 18px;color:var(--ink-700);font-size:14.5px;line-height:1.8}
.faq-a p{margin-bottom:.6em}
.faq-rel{padding:0 20px 18px;font-size:13.5px;color:var(--ink-500)}
.faq-rel a{color:var(--teal-600);font-weight:600}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--navy-900);color:rgba(255,255,255,.72);position:relative;border-top:1px solid rgba(255,255,255,.1)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(28px,4vw,60px);padding:clamp(48px,6vw,80px) 0 44px}
.foot-col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;letter-spacing:.04em}
.foot-col a{display:block;padding:5px 0;font-size:14.5px;transition:color .25s}
.foot-col a:hover{color:var(--teal-200)}
.foot-col p{font-size:14.5px;padding:4px 0}
.foot-logo{margin-bottom:16px}
.foot-brand p{line-height:1.7}
.foot-icp{margin-top:12px}
.foot-icp a{display:inline;color:rgba(255,255,255,.55);font-size:13px}
.foot-addr{color:rgba(255,255,255,.55);font-size:13.5px!important;line-height:1.7}
.foot-bar{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:13px;color:rgba(255,255,255,.5)}
.foot-bar-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.foot-bar-links{display:flex;gap:20px}
.foot-bar-links a:hover{color:var(--teal-200)}

/* ---------- 回到顶部 ---------- */
.back-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:999px;background:var(--grad-navy);color:#fff;font-size:19px;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transform:translateY(12px);transition:all .35s;z-index:90}
.back-top.show{opacity:1;pointer-events:auto;transform:none}

/* ---------- 内页通用 ---------- */
.crumb{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:12px 0;font-size:13.5px;color:var(--ink-500);margin-top:var(--head-h)}
.crumb a:hover{color:var(--teal-600)}
.crumb-sep{margin:0 8px;color:var(--ink-400)}
.page-banner{background:var(--grad-navy);color:#fff;padding:calc(var(--head-h) + 48px) 0 56px;text-align:center;position:relative;overflow:hidden}
.page-banner::after{content:"";position:absolute;inset:0;background:radial-gradient(700px 260px at 50% 0%,rgba(20,184,166,.22),transparent 65%)}
.page-banner h1{position:relative;font-size:clamp(28px,3.6vw,42px);font-weight:900;margin-top:8px}
.page-banner .sec-en{color:var(--teal-200)}
.page-banner .sec-en::before{background:var(--teal-200)}
.sec-page{background:var(--bg-white);padding-top:clamp(24px,2.8vw,40px)}
.page-body{max-width:860px;font-size:16.5px;color:var(--ink-700)}
.page-body h2{font-size:clamp(21px,2.4vw,26px);font-weight:800;color:var(--navy-900);margin:1.6em 0 .7em}
.page-body h3{font-size:19px;font-weight:700;color:var(--navy-800);margin:1.4em 0 .6em}
.page-body h4{font-size:17px;font-weight:700;color:var(--navy-800);margin:1.2em 0 .5em}
.page-body p{margin-bottom:1em;line-height:1.95}
.page-body strong{color:var(--navy-800)}
.page-body a{color:var(--teal-600);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.page-body ul,.page-body ol{margin:0 0 1em 1.4em}
.page-body ul li,.page-body ol li{list-style:disc;margin-bottom:.5em;line-height:1.8}
.page-body ol li{list-style:decimal}
.page-body img{border-radius:14px;margin:1em 0;box-shadow:var(--shadow-md)}
.page-body table{width:100%;border-collapse:collapse;margin:1em 0;font-size:14.5px}
.page-body th,.page-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.page-body th{background:var(--bg-soft);color:var(--navy-800)}
.page-body blockquote{border-left:4px solid var(--teal-500);background:var(--bg-soft);padding:14px 20px;border-radius:0 12px 12px 0;margin:1em 0;color:var(--ink-700)}
.page-body hr{border:none;border-top:1px solid var(--line);margin:2em 0}
.page-body .cly-faq-page h4{background:var(--bg-soft);padding:12px 16px;border-radius:10px;border-left:4px solid var(--teal-500)}

/* ---------- 文章页 ---------- */
.article{padding:48px 0 clamp(56px,7vw,96px);background:var(--bg-white)}
.article-grid{display:grid;grid-template-columns:1fr 300px;gap:clamp(32px,4vw,64px);align-items:start}
.article-head h1{font-size:clamp(24px,3vw,34px);font-weight:900;color:var(--navy-900);line-height:1.4;margin-top:12px}
.article-meta{display:flex;align-items:center;gap:14px;font-size:13.5px;color:var(--ink-400)}
.article-body{margin-top:28px;font-size:16.5px;color:var(--ink-700)}
.article-body h2{font-size:clamp(20px,2.2vw,25px);font-weight:800;color:var(--navy-900);margin:1.8em 0 .7em;padding-left:14px;border-left:4px solid var(--teal-500)}
.article-body h3{font-size:19px;font-weight:700;color:var(--navy-800);margin:1.5em 0 .6em}
.article-body h4{font-size:17px;font-weight:700;color:var(--navy-800);margin:1.2em 0 .5em}
.article-body p{margin-bottom:1.1em;line-height:1.95}
.article-body strong{color:var(--navy-800)}
.article-body ul,.article-body ol{margin:0 0 1.1em 1.4em}
.article-body ul li,.article-body ol li{list-style:disc;margin-bottom:.55em;line-height:1.8}
.article-body ol li{list-style:decimal}
.article-body img{border-radius:14px;margin:1.2em 0;box-shadow:var(--shadow-md)}
.article-body table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px}
.article-body th{background:var(--bg-soft);color:var(--navy-800)}
.article-body blockquote{border-left:4px solid var(--teal-500);background:var(--bg-soft);padding:14px 20px;border-radius:0 12px 12px 0;margin:1.2em 0}
.article-body a{color:var(--teal-600);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.article-foot{margin-top:40px;padding:26px 30px;background:var(--bg-soft);border-radius:16px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.article-foot p{color:var(--ink-700);font-size:15px}
.article-foot a{color:var(--teal-600);font-weight:700}
.article-side{position:sticky;top:calc(var(--head-h) + 24px);display:flex;flex-direction:column;gap:20px}
.side-box{background:var(--bg-soft);border:1px solid var(--line);border-radius:16px;padding:22px}
.side-box h4{font-size:16px;font-weight:800;color:var(--navy-900);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.side-post{display:block;padding:10px 0;border-bottom:1px dashed var(--line)}
.side-post:last-child{border-bottom:none}
.side-post strong{display:block;font-size:14.5px;color:var(--ink-900);font-weight:600;line-height:1.6}
.side-post:hover strong{color:var(--teal-600)}
.side-post span{font-size:12px;color:var(--ink-400)}
.side-cta p{font-size:13.5px;color:var(--ink-500);margin-bottom:14px}

/* ---------- 新闻列表 ---------- */
.cat-bar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:36px}
.cat-chip{padding:.5em 1.2em;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink-700);font-weight:500;transition:all .25s}
.cat-chip:hover{border-color:var(--teal-500);color:var(--teal-600)}
.cat-chip.on{background:var(--grad-teal);color:#fff;border-color:transparent;font-weight:700}
.pager{display:flex;justify-content:center;gap:8px;margin-top:48px}
.pager a,.pager .pager-cur{min-width:42px;height:42px;padding:0 12px;border-radius:10px;display:grid;place-items:center;font-size:15px;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--ink-700)}
.pager a:hover{border-color:var(--teal-500);color:var(--teal-600)}
.pager .pager-cur{background:var(--grad-navy);color:#fff;border-color:transparent}

/* ---------- 案例库 ---------- */
.cases-hero{background:var(--grad-navy);color:#fff;padding:calc(var(--head-h) + 52px) 0 60px;position:relative;overflow:hidden}
.cases-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(800px 300px at 15% 0%,rgba(20,184,166,.2),transparent 60%)}
.cases-hero .wrap{position:relative}
.crumb-tag{display:inline-block;font-size:13px;letter-spacing:.24em;color:var(--teal-200);border:1px solid rgba(255,255,255,.3);padding:.35em 1.1em;border-radius:999px;margin-bottom:18px}
.cases-hero h1{font-size:clamp(26px,3.4vw,40px);font-weight:900;line-height:1.35}
.cases-intro{margin-top:18px;color:rgba(255,255,255,.78);max-width:760px;font-size:15.5px}
.cases-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.cases-stat{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:22px;text-align:center}
.cases-stat strong{display:block;font-size:clamp(26px,3vw,38px);font-weight:900;color:var(--teal-200);line-height:1.1}
.cases-stat span{display:block;margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.7)}
.sec-cases-list{background:var(--bg-soft)}
.village-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2vw,24px)}
.village-card{background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--line);transition:transform .3s,box-shadow .3s}
.village-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.village-img img{aspect-ratio:4/2.8;object-fit:cover;width:100%}
.village-body{padding:14px 16px 16px}
.village-body strong{display:block;font-size:15px;color:var(--navy-900);font-weight:700}
.village-body span{font-size:12.5px;color:var(--teal-600)}

/* ---------- 案例详情 ---------- */
.case-detail{padding:48px 0 clamp(56px,7vw,96px);background:var(--bg-white)}
.case-detail-head{text-align:center;max-width:760px;margin:0 auto 40px}
.case-detail-head h1{font-size:clamp(24px,3vw,34px);font-weight:900;color:var(--navy-900);margin-top:10px}
.case-detail-head .crumb-tag{color:var(--teal-600);border-color:var(--teal-500)}
.case-detail-desc{margin-top:14px;color:var(--ink-500);font-size:15.5px}
.case-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,2.6vw,36px)}
.cd-figure{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-md)}
.cd-figure img{width:100%;aspect-ratio:3/4;object-fit:cover;background:var(--bg-soft)}
.cd-figure figcaption{text-align:center;padding:14px;font-weight:700;color:var(--navy-800);font-size:15px;background:var(--bg-soft)}
.case-detail-foot{margin-top:44px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:var(--bg-soft);border-radius:16px;padding:24px 30px}
.case-detail-foot p{color:var(--ink-700);font-size:15px}
.case-detail-cta{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 留言表单 ---------- */
.sec-form{background:var(--bg-soft)}
.form-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(36px,5vw,72px);align-items:start}
.form-notes{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.form-notes li{display:flex;gap:10px;align-items:center;color:var(--ink-700);font-size:15px}
.form-notes i{width:22px;height:22px;border-radius:999px;background:var(--grad-teal);color:#fff;font-style:normal;font-size:12px;font-weight:800;display:grid;place-items:center;flex-shrink:0}
.msg-form{background:#fff;border-radius:20px;padding:clamp(26px,3vw,40px);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:16px}
.msg-form label{display:flex;flex-direction:column;gap:8px;font-size:14.5px;font-weight:600;color:var(--navy-800)}
.msg-form input,.msg-form textarea{border:1.5px solid var(--line);border-radius:12px;padding:13px 16px;font-size:15px;font-family:inherit;transition:border-color .25s,box-shadow .25s;background:var(--bg-soft)}
.msg-form input:focus,.msg-form textarea:focus{outline:none;border-color:var(--teal-500);box-shadow:0 0 0 4px rgba(20,184,166,.12);background:#fff}
.msg-form .btn{margin-top:6px}
.form-ok{background:rgba(20,184,166,.12);color:var(--teal-600);border-radius:10px;padding:12px 16px;font-size:14.5px;font-weight:600}

/* ---------- 404 ---------- */
.sec-404{background:var(--bg-soft);min-height:60vh;display:grid;place-items:center}
.box-404{text-align:center;max-width:560px}
.box-404 strong{font-size:clamp(80px,12vw,140px);font-weight:900;color:var(--navy-800);line-height:1;opacity:.14;display:block}
.box-404 h1{font-size:clamp(24px,3vw,32px);font-weight:900;color:var(--navy-900);margin-top:-30px}
.box-404 p{margin:16px 0 30px;color:var(--ink-500)}
.box-404-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 滚动显现动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease var(--d,0s),transform .7s ease var(--d,0s)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-slide{transition:opacity .3s}
  html{scroll-behavior:auto}
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1180px){
  :root{--head-h:64px}
  .site-nav{position:fixed;inset:0;background:rgba(6,34,54,.98);flex-direction:column;justify-content:center;gap:6px;opacity:0;pointer-events:none;transition:opacity .3s;padding:80px 32px 40px;overflow-y:auto}
  .site-nav.open{opacity:1;pointer-events:auto}
  .site-nav a{color:#fff!important;font-size:19px;padding:14px 10px;width:100%;text-align:center;border-radius:12px}
  .site-nav a:hover{background:rgba(255,255,255,.1)}
  .site-nav a.on::after{display:none}
  .nav-cta{margin:16px auto 0;font-size:17px!important;padding:.8em 2.2em!important}
  .nav-toggle{display:flex}
  .brand-text small{display:none}
  .brand-mark{width:40px;height:40px}
  .brand{gap:10px}
}

@media (max-width:1024px){
  .faq-list{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .article-grid{grid-template-columns:1fr}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-box{flex:1;min-width:260px}
  .village-grid{grid-template-columns:repeat(3,1fr)}
  .cases-stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
  .faq-list{grid-template-columns:1fr}

  .hero{min-height:78vh}
  .hero-btns{gap:12px}
  .hero-btns .btn{flex:1;min-width:150px;max-width:240px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 16px}
  .about-grid{grid-template-columns:1fr}
  .about-body{columns:1}
  .about-body.fold{max-height:10.5em}
  .about-more{display:block}
  .svc-grid{grid-template-columns:1fr}
  .proc-flow{grid-template-columns:1fr 1fr;gap:34px 16px}
  .proc-flow::before{display:none}
  .case-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr 1fr}
  .why-points{grid-template-columns:1fr}
  .why-cta{flex-direction:column;align-items:flex-start}
  .why-cta .btn{margin-left:0}
  .form-grid{grid-template-columns:1fr}
  .case-detail-grid{grid-template-columns:1fr}
  .cd-figure img{aspect-ratio:4/3.4}
  .village-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bar-inner{justify-content:center;text-align:center}
  .article-foot{flex-direction:column;align-items:flex-start}
  .case-detail-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  body{font-size:15px}
  .post-grid{grid-template-columns:1fr}
  .proc-flow{grid-template-columns:1fr}
  .hero{min-height:76vh}
  .hero-inner{padding-bottom:70px}
  .hero-btns{flex-direction:column;align-items:center}
  .hero-btns .btn{width:100%;max-width:320px}
  .hero-dots{bottom:24px}
  .hero-scroll{display:none}
  .about-float{right:8px;bottom:-16px;padding:14px 18px}
  .about-float strong{font-size:26px}
  .cases-stats{grid-template-columns:repeat(2,1fr)}
  .village-grid{grid-template-columns:1fr 1fr}
  .cat-chip{font-size:13px;padding:.45em 1em}
}