:root{
  --deep:#033A3E;--primary:#008C8C;--mid:#0AA39B;--soft:#7FC4BC;--mist:#DFF0EC;
  --mint:#EEF7F4;--sand:#F7F5EF;--ink:#12312E;--ink-2:#3E5B57;--line:rgba(0,140,140,.18);
  --serif:"Noto Serif SC",serif;--sans:"Noto Sans SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--sand);line-height:1.75;font-size:16px;opacity:0;transition:opacity .5s ease}
body.ready{opacity:1}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
section{padding:96px 0}
.eyebrow{display:flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.35em;color:var(--primary);font-weight:500;text-transform:uppercase}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--primary)}
h2.title{font-family:var(--serif);font-size:clamp(28px,3.4vw,42px);font-weight:900;color:var(--deep);margin:14px 0 10px;line-height:1.3}
p.sub{color:var(--ink-2);max-width:720px}
.num{font-family:var(--serif);font-variant-numeric:tabular-nums}

/* ===== 滚动显现动效 ===== */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s cubic-bezier(.22,.61,.36,1),transform .8s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}.reveal.d4{transition-delay:.4s}.reveal.d5{transition-delay:.5s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ===== 导航 ===== */
header{position:sticky;top:0;z-index:50;background:rgba(247,245,239,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
header.scrolled{box-shadow:0 10px 30px -18px rgba(3,58,62,.4)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:12px}
.brand .mark{width:42px;height:42px;transition:transform .6s}
.brand:hover .mark{transform:rotate(12deg)}
.brand b{font-family:var(--serif);font-size:19px;color:var(--deep);letter-spacing:.06em;display:block;line-height:1.2}
.brand small{font-size:11px;color:var(--primary);letter-spacing:.18em}
.nav ul{display:flex;gap:4px}
.nav ul a{position:relative;padding:8px 14px;font-size:15px;color:var(--ink-2);border-radius:6px;transition:.2s}
.nav ul a::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav ul a:hover{color:var(--primary)}
.nav ul a:hover::after,.nav ul a.active::after{transform:scaleX(1)}
.nav ul a.active{color:var(--primary);font-weight:500}
.nav .call{display:flex;align-items:center;gap:8px;padding:9px 18px;border:1.5px solid var(--primary);color:var(--primary);border-radius:999px;font-weight:500;font-size:14px;transition:.25s}
.nav .call:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.burger span{display:block;width:22px;height:2px;background:var(--deep);margin:5px 0;transition:.3s}
.m-menu{display:none;position:fixed;inset:72px 0 auto 0;background:#fff;z-index:49;padding:12px 28px 24px;box-shadow:0 24px 40px -20px rgba(3,58,62,.35)}
.m-menu.open{display:block}
.m-menu a{display:block;padding:12px 0;border-bottom:1px solid var(--mist);font-size:16px;color:var(--ink)}
@media(max-width:900px){.nav ul,.nav .call{display:none}.burger{display:block}}

/* ===== Hero（内页通用头图） ===== */
.hero{position:relative;color:#fff;overflow:hidden;padding:0}
.hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;animation:kenburns 18s ease-in-out infinite alternate}
@keyframes kenburns{from{transform:scale(1)}to{transform:scale(1.12)}}
.hero .veil{position:absolute;inset:0;background:linear-gradient(120deg,rgba(3,58,62,.88) 20%,rgba(0,140,140,.55) 75%,rgba(0,140,140,.35))}
.hero .waves{position:absolute;left:0;right:0;bottom:0;height:90px;opacity:.5;z-index:2}
.hero-inner{position:relative;z-index:3;padding:120px 0 140px}
.hero .tag{display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:7px 18px;font-size:13px;letter-spacing:.2em;color:#CFEDE8;animation:fadeDown 1s .1s both}
.hero h1{font-family:var(--serif);font-size:clamp(34px,5vw,58px);font-weight:900;line-height:1.28;margin:26px 0 18px;animation:fadeDown 1s .25s both}
.hero h1 em{font-style:normal;color:#8FE3D5}
.hero p.lead{max-width:640px;color:#C9E6E1;font-size:17px;font-weight:300;animation:fadeDown 1s .4s both}
.hero .crumb{margin-top:26px;font-size:13.5px;color:#9FCFC8;animation:fadeDown 1s .55s both}
.hero .crumb a:hover{color:#fff}
@keyframes fadeDown{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
.float-turtle{position:absolute;right:6%;bottom:16%;z-index:2;width:150px;opacity:.5;animation:floaty 6s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-18px) rotate(3deg)}}
@media(max-width:760px){.float-turtle{display:none}}

/* ===== 数据条 ===== */
.stats{position:relative;z-index:5;margin-top:-64px}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-radius:16px;box-shadow:0 24px 60px -24px rgba(3,58,62,.35);overflow:hidden}
.stats .cell{padding:30px 26px;border-left:1px solid var(--mist)}
.stats .cell:first-child{border-left:none}
.stats .v{font-family:var(--serif);font-size:38px;font-weight:900;color:var(--primary);line-height:1.1}
.stats .v span{font-size:16px;color:var(--ink-2);font-weight:400;margin-left:4px}
.stats .k{font-size:14px;color:var(--ink-2);margin-top:6px}
@media(max-width:860px){.stats .grid{grid-template-columns:repeat(2,1fr)}.stats .cell:nth-child(3){border-left:none}}

/* ===== 通用卡片 ===== */
.imgcard{background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 16px 40px -20px rgba(3,58,62,.25);transition:transform .35s,box-shadow .35s}
.imgcard:hover{transform:translateY(-8px);box-shadow:0 28px 56px -24px rgba(3,58,62,.4)}
.imgcard .ph{height:230px;overflow:hidden;position:relative}
.imgcard .ph img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.22,.61,.36,1)}
.imgcard:hover .ph img{transform:scale(1.08)}
.imgcard .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(3,58,62,.35));opacity:0;transition:.4s}
.imgcard:hover .ph::after{opacity:1}
.imgcard .body{padding:28px 30px 32px}
.imgcard h3{font-family:var(--serif);font-size:21px;color:var(--deep);margin-bottom:6px}
.imgcard .en{font-size:12px;letter-spacing:.25em;color:var(--primary);text-transform:uppercase;margin-bottom:12px}
.imgcard p{color:var(--ink-2);font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chips i{font-style:normal;font-size:13px;color:var(--primary);background:var(--mint);border:1px solid var(--line);padding:4px 12px;border-radius:999px}

/* ===== 首页分区 ===== */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr}}
.split .pic{border-radius:18px;overflow:hidden;box-shadow:0 24px 50px -24px rgba(3,58,62,.4);position:relative}
.split .pic img{width:100%;height:420px;object-fit:cover;transition:transform 1s}
.split .pic:hover img{transform:scale(1.05)}
.split .pic .stamp{position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.92);border-radius:12px;padding:12px 18px;font-family:var(--serif);color:var(--deep);font-size:15px}
.split p{color:var(--ink-2);margin-bottom:14px;text-align:justify}
.quote{border-left:3px solid var(--primary);background:var(--mint);padding:20px 24px;border-radius:0 12px 12px 0;font-family:var(--serif);color:var(--deep);font-size:16.5px;line-height:1.9;margin-top:8px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:48px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:48px}
@media(max-width:900px){.grid3{grid-template-columns:1fr}.grid2{grid-template-columns:1fr}}
.more-link{display:inline-flex;align-items:center;gap:8px;margin-top:34px;padding:12px 26px;border:1.5px solid var(--primary);color:var(--primary);border-radius:999px;font-size:14.5px;font-weight:500;transition:.25s}
.more-link:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.band{background:linear-gradient(180deg,var(--sand),var(--mint))}
.band-deep{background:var(--deep);color:#fff;position:relative;overflow:hidden}
.band-deep::before{content:"";position:absolute;left:-10%;top:-40%;width:520px;height:520px;background:radial-gradient(circle,rgba(0,140,140,.5),transparent 65%)}
.band-deep .eyebrow{color:#8FE3D5}.band-deep .eyebrow::before{background:#8FE3D5}
.band-deep h2.title{color:#fff}
.band-deep p.sub{color:#B9DCD6}

/* 合作伙伴 */
.partner-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px;position:relative;z-index:2}
@media(max-width:900px){.partner-cards{grid-template-columns:1fr}}
.partner-cards .pc{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:30px 28px;transition:.3s}
.partner-cards .pc:hover{background:rgba(255,255,255,.1);transform:translateY(-5px)}
.partner-cards .pc b{font-family:var(--serif);font-size:19px;display:block;margin-bottom:8px;color:#fff}
.partner-cards .pc span{font-size:13px;color:#8FE3D5;letter-spacing:.1em;display:block;margin-bottom:12px}
.partner-cards .pc p{font-size:14px;color:#C9E6E1}
.fields{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px;position:relative;z-index:2}
.fields i{font-style:normal;font-size:14px;padding:9px 22px;border-radius:999px;border:1px solid rgba(143,227,213,.4);color:#CFEDE8}

/* 理念流程 */
.flow{display:grid;grid-template-columns:repeat(5,1fr);margin-top:52px;border-top:2px solid var(--line)}
@media(max-width:900px){.flow{grid-template-columns:1fr;border-top:none}}
.flow .step{padding:30px 22px 0;border-left:1px solid var(--line)}
.flow .step:first-child{border-left:none}
@media(max-width:900px){.flow .step{border-left:none;border-top:1px solid var(--line);padding:22px 0 0}}
.flow .dot{width:14px;height:14px;border-radius:50%;background:var(--primary);border:3px solid var(--mint);outline:2px solid var(--primary);margin:-9px 0 18px;transition:.3s}
.flow .step:hover .dot{transform:scale(1.3)}
.flow h4{font-family:var(--serif);font-size:18px;color:var(--deep);margin-bottom:8px}
.flow p{font-size:14px;color:var(--ink-2)}

/* 价值观 */
.values .grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:48px}
@media(max-width:1000px){.values .grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.values .grid{grid-template-columns:1fr}}
.values .v{background:#fff;border-radius:16px;padding:28px 22px;text-align:center;box-shadow:0 12px 30px -20px rgba(3,58,62,.3);transition:.3s}
.values .v:hover{transform:translateY(-6px)}
.values .zi{font-family:var(--serif);font-size:44px;font-weight:900;color:var(--primary);line-height:1}
.values b{display:block;margin:14px 0 8px;font-size:16px;color:var(--deep)}
.values p{font-size:13px;color:var(--ink-2);text-align:justify}
.tri{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:56px}
@media(max-width:860px){.tri{grid-template-columns:1fr}}
.tri .t{border-radius:18px;padding:34px 30px;color:#fff;position:relative;overflow:hidden;transition:.3s}
.tri .t:hover{transform:translateY(-6px)}
.tri .t.you{background:linear-gradient(150deg,var(--deep),#06565B)}
.tri .t.wu{background:linear-gradient(150deg,var(--primary),#0AA39B)}
.tri .t.gao{background:linear-gradient(150deg,#0B6E68,var(--mid))}
.tri .t h3{font-family:var(--serif);font-size:26px;margin-bottom:12px}
.tri .t p{font-size:14px;color:rgba(255,255,255,.85)}
.tri .t .big{position:absolute;right:-6px;bottom:-26px;font-family:var(--serif);font-size:110px;font-weight:900;opacity:.1;line-height:1}

/* 新闻 */
.news article{background:#fff;border-radius:16px;overflow:hidden;border:1px solid var(--line);transition:.3s;display:flex;flex-direction:column}
.news article:hover{transform:translateY(-6px);box-shadow:0 18px 40px -22px rgba(3,58,62,.35)}
.news .cover{height:180px;overflow:hidden}
.news .cover img{width:100%;height:100%;object-fit:cover;transition:transform .8s}
.news article:hover .cover img{transform:scale(1.08)}
.news .body{padding:24px 26px 28px;flex:1;display:flex;flex-direction:column}
.news time{font-size:12.5px;color:var(--primary);letter-spacing:.1em}
.news h3{font-family:var(--serif);font-size:17.5px;color:var(--deep);margin:8px 0 10px;line-height:1.55}
.news p{font-size:14px;color:var(--ink-2);flex:1}
.news .more{margin-top:16px;font-size:13.5px;color:var(--primary);font-weight:500}

/* 画廊轮播 */
.carousel{position:relative;border-radius:18px;overflow:hidden;box-shadow:0 24px 60px -24px rgba(3,58,62,.45);margin-top:48px}
.carousel .track{display:flex;transition:transform .7s cubic-bezier(.22,.61,.36,1)}
.carousel .slide{min-width:100%;position:relative;height:480px}
.carousel .slide img{width:100%;height:100%;object-fit:cover}
.carousel .cap{position:absolute;left:0;right:0;bottom:0;padding:40px 34px 26px;background:linear-gradient(180deg,transparent,rgba(3,58,62,.85));color:#fff;font-family:var(--serif);font-size:19px}
.carousel .cap small{display:block;font-family:var(--sans);font-size:12.5px;color:#8FE3D5;letter-spacing:.2em;margin-bottom:4px}
.carousel .dots{position:absolute;right:24px;bottom:22px;display:flex;gap:8px;z-index:3}
.carousel .dots button{width:10px;height:10px;border-radius:50%;border:none;background:rgba(255,255,255,.45);cursor:pointer;transition:.3s;padding:0}
.carousel .dots button.on{background:#fff;transform:scale(1.25)}
.carousel .arr{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:44px;height:44px;border-radius:50%;border:none;background:rgba(255,255,255,.85);color:var(--deep);font-size:18px;cursor:pointer;transition:.25s;display:flex;align-items:center;justify-content:center}
.carousel .arr:hover{background:#fff;transform:translateY(-50%) scale(1.08)}
.carousel .arr.prev{left:18px}.carousel .arr.next{right:18px}
@media(max-width:760px){.carousel .slide{height:300px}}

/* 联系 */
.contact{background:linear-gradient(160deg,var(--deep),#06565B);color:#fff}
.contact .eyebrow{color:#8FE3D5}.contact .eyebrow::before{background:#8FE3D5}
.contact h2.title{color:#fff}
.contact .cols{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:48px}
@media(max-width:900px){.contact .cols{grid-template-columns:1fr}}
.contact .info li{display:flex;gap:14px;margin-bottom:22px;align-items:flex-start}
.contact .info svg{flex:none;width:22px;height:22px;margin-top:3px}
.contact .info b{display:block;font-size:15px;color:#8FE3D5;margin-bottom:2px}
.contact .info span{font-size:15px;color:#DFF0EC}
.contact form{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);border-radius:18px;padding:34px}
.contact .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:560px){.contact .row{grid-template-columns:1fr}}
.contact input,.contact textarea,.contact select{width:100%;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2);border-radius:10px;padding:13px 16px;color:#fff;font-size:14.5px;font-family:var(--sans);margin-bottom:16px;outline:none;transition:.2s}
.contact input::placeholder,.contact textarea::placeholder{color:rgba(255,255,255,.5)}
.contact input:focus,.contact textarea:focus,.contact select:focus{border-color:#8FE3D5;background:rgba(255,255,255,.13)}
.contact textarea{resize:vertical;min-height:110px}
.contact button{width:100%;background:#fff;color:var(--deep);border:none;border-radius:999px;padding:15px;font-size:15.5px;font-weight:700;cursor:pointer;transition:.25s;font-family:var(--sans)}
.contact button:hover{background:var(--mint);transform:translateY(-2px)}
.contact .note{font-size:12.5px;color:rgba(255,255,255,.55);margin-top:12px;text-align:center}

/* 页脚 & 回顶 */
footer{background:#022A2D;color:#8FB8B3;padding:56px 0 32px}
footer .top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
footer .brand b{color:#fff}
footer nav{display:flex;gap:26px;flex-wrap:wrap;font-size:14px}
footer nav a:hover{color:#8FE3D5}
footer .bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:12.5px;color:#5E8783}
#toTop{position:fixed;right:26px;bottom:30px;z-index:60;width:46px;height:46px;border-radius:50%;border:none;background:var(--primary);color:#fff;font-size:18px;cursor:pointer;opacity:0;pointer-events:none;transition:.3s;box-shadow:0 12px 26px -10px rgba(0,140,140,.6)}
#toTop.show{opacity:1;pointer-events:auto}
#toTop:hover{transform:translateY(-4px)}

/* ===== 首页 Hero 三图轮播 ===== */
.hero .slides{position:absolute;inset:0}
.hero .slide-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transform:scale(1.08);transition:opacity 1.2s ease,transform 6.5s linear}
.hero .slide-bg.on{opacity:1;transform:scale(1)}
.hero .hero-nav{position:absolute;right:34px;bottom:34px;z-index:4;display:flex;align-items:center;gap:14px}
.hero .hero-dots{display:flex;gap:9px}
.hero .hero-dots button{width:34px;height:5px;border-radius:999px;border:none;background:rgba(255,255,255,.4);cursor:pointer;padding:0;transition:.3s}
.hero .hero-dots button.on{background:#fff;width:48px}
.hero .hero-arr{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.12);color:#fff;font-size:16px;cursor:pointer;transition:.25s;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(3px)}
.hero .hero-arr:hover{background:rgba(255,255,255,.28);transform:scale(1.08)}
.hero .hero-count{font-family:var(--serif);font-size:14px;color:rgba(255,255,255,.85);letter-spacing:.1em}
@media(max-width:760px){.hero .hero-nav{right:20px;bottom:22px}}