/* ============================================================
   悦悦体育 · 单页官网
   墨绿 + 香槟金视觉体系 / 无外部依赖
   ============================================================ */

:root{
  --bg:        #081712;
  --bg-soft:   #0b2019;
  --bg-card:   #10291f;
  --bg-deep:   #050f0b;
  --cream:     #f4f0e6;
  --muted:     #9fb1a5;
  --muted-2:   #7d9085;
  --gold:      #c8a66b;
  --gold-lt:   #e7d2a4;
  --gold-dim:  rgba(200,166,107,.28);
  --line:      rgba(233,220,190,.13);
  --line-soft: rgba(233,220,190,.075);
  --font-sans: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans CJK SC",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",Georgia,serif;
  --ease: cubic-bezier(.22,.7,.24,1);
  --header-h: 84px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--cream);
  font-family:var(--font-sans);font-size:15px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4,p,dl,dd,figure,ol,ul{margin:0}
ul,ol{list-style:none;padding:0}
::selection{background:var(--gold);color:var(--bg-deep)}
:focus-visible{outline:2px solid var(--gold);outline-offset:4px}
section[id]{scroll-margin-top:var(--header-h)}

.container{width:min(1320px,calc(100% - clamp(40px,9vw,140px)));margin-inline:auto}

/* ---------- 通用排版 ---------- */
.eyebrow{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:11px;letter-spacing:.22em;color:var(--gold);
  font-weight:500;text-transform:uppercase;margin-bottom:26px;
}
.eyebrow i{display:block;width:30px;height:1px;background:var(--gold);flex:none}
.eyebrow-sep{opacity:.45;margin:0 2px}
.eyebrow--light{color:var(--gold-lt)}
.eyebrow--light i{background:var(--gold-lt)}

.section-title{
  font-family:var(--font-serif);font-weight:600;
  font-size:clamp(32px,4.3vw,58px);line-height:1.36;
  letter-spacing:.015em;color:var(--cream);
}
.section-title .gold,.gold{color:var(--gold)}
.lead{font-size:17px;line-height:2;color:rgba(244,240,230,.9);margin-top:30px}
.lead strong{color:var(--gold-lt);font-weight:600}
.body-text{font-size:15px;line-height:2.05;color:var(--muted);margin-top:18px}
.text-link{
  display:inline-flex;align-items:center;gap:12px;margin-top:34px;
  font-size:14px;letter-spacing:.06em;color:var(--gold);
  border-bottom:1px solid var(--gold-dim);padding-bottom:8px;
  transition:color .3s,border-color .3s,gap .3s;
}
.text-link:hover{color:var(--gold-lt);border-color:var(--gold-lt);gap:20px}

.section{position:relative;padding:clamp(96px,10.5vw,164px) 0}
.section--about{background:var(--bg)}
.section--services{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 45%,var(--bg) 100%)}
.section--strength{background:var(--bg)}
.section--programs{background:var(--bg-soft)}
.section--clients{background:var(--bg)}
.section--gallery{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 100%)}

.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:40px;
  margin-bottom:clamp(48px,6vw,84px);
}
.section-head-note{
  font-size:13px;line-height:2;color:var(--muted-2);
  text-align:right;padding-bottom:8px;white-space:nowrap;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:12px;
  padding:15px 30px;font-size:14px;letter-spacing:.07em;font-weight:500;
  border:1px solid transparent;transition:transform .35s var(--ease),box-shadow .35s,background .35s,color .35s,border-color .35s;
}
.btn span{transition:transform .35s var(--ease)}
.btn:hover span{transform:translateX(4px)}
.btn--gold{
  background:linear-gradient(120deg,#d8b878,var(--gold) 60%,#b8935a);
  color:#10231a;border-color:var(--gold-lt);
}
.btn--gold:hover{transform:translateY(-3px);box-shadow:0 14px 38px rgba(200,166,107,.22)}
.btn--ghost{border-color:rgba(244,240,230,.32);color:var(--cream);background:rgba(8,23,18,.18)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-lt);transform:translateY(-3px)}
.btn--lg{padding:18px 38px;font-size:15px}

/* ---------- 滚动进场（渐进增强：脚本未接管时内容始终可见） ---------- */
.reveal{opacity:1;transform:none}
html.js-anim .reveal{opacity:0;transform:translateY(30px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
html.js-anim .reveal.in{opacity:1;transform:none}
html.anim-fallback .reveal{opacity:1!important;transform:none!important}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-h);
  border-bottom:1px solid transparent;transition:background .4s,border-color .4s,backdrop-filter .4s;
}
.site-header.scrolled{
  background:rgba(6,20,15,.86);border-bottom-color:var(--line);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:inline-flex;align-items:center;gap:13px;flex:none}
.brand-mark{display:block;width:42px;height:42px;color:var(--gold)}
.brand-mark svg{width:100%;height:100%}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-family:var(--font-serif);font-size:21px;font-weight:600;letter-spacing:.16em;color:var(--cream)}
.brand-text em{font-style:normal;font-size:8.5px;letter-spacing:.32em;color:var(--gold);margin-top:5px}

.main-nav{display:flex;align-items:center;gap:clamp(14px,1.9vw,30px)}
.main-nav>a{position:relative;font-size:13px;letter-spacing:.055em;color:rgba(244,240,230,.76);white-space:nowrap;transition:color .3s}
.main-nav>a:not(.nav-cta)::after{
  content:"";position:absolute;left:0;bottom:-8px;width:0;height:1px;background:var(--gold);transition:width .35s var(--ease);
}
.main-nav>a:not(.nav-cta):hover,.main-nav>a.active{color:var(--gold-lt)}
.main-nav>a:not(.nav-cta):hover::after,.main-nav>a.active::after{width:100%}
.main-nav .nav-cta{
  margin-left:6px;padding:10px 20px;border:1px solid var(--gold-dim);color:var(--gold-lt);
  transition:background .3s,border-color .3s,color .3s;
}
.main-nav .nav-cta:hover{background:rgba(200,166,107,.12);border-color:var(--gold);color:#fff}
.menu-toggle{display:none;width:42px;height:42px;background:transparent;border:1px solid var(--line);flex-direction:column;align-items:center;justify-content:center;gap:5px}
.menu-toggle span{display:block;width:19px;height:1px;background:var(--gold-lt);transition:transform .3s,opacity .3s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;flex-direction:column;
  overflow:hidden;background:var(--bg-deep);
}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 42%;animation:kenburns 26s ease-in-out infinite alternate}
@keyframes kenburns{from{transform:scale(1.02)}to{transform:scale(1.12)}}
.hero-shade{
  position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(90deg,rgba(5,16,11,.95) 0%,rgba(5,16,11,.82) 38%,rgba(5,16,11,.38) 76%,rgba(5,16,11,.25) 100%),
    linear-gradient(0deg,rgba(5,16,11,.9) 0%,rgba(5,16,11,0) 52%),
    linear-gradient(180deg,rgba(5,16,11,.58) 0%,rgba(5,16,11,0) 32%);
}
.hero-inner{
  position:relative;z-index:2;flex:1;display:flex;align-items:center;
  padding-top:calc(var(--header-h) + 30px);padding-bottom:60px;
}
.hero-copy{max-width:800px}
.hero-title{
  font-family:var(--font-serif);font-weight:600;
  font-size:clamp(42px,6.2vw,88px);line-height:1.28;letter-spacing:.02em;
  color:var(--cream);text-shadow:0 4px 40px rgba(0,0,0,.35);
}
.hero-title span{color:var(--gold-lt)}
.hero-sub{
  margin-top:26px;font-size:clamp(13px,1.35vw,17px);letter-spacing:.3em;
  color:var(--gold-lt);font-weight:400;
}
.hero-desc{
  max-width:620px;margin-top:28px;font-size:15px;line-height:2.1;
  color:rgba(244,240,230,.72);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:42px}
.hero-scroll{
  position:absolute;right:0;bottom:6px;z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:14px;
  font-size:9px;letter-spacing:.3em;color:rgba(244,240,230,.55);writing-mode:vertical-rl;
}
.hero-scroll i{display:block;width:1px;height:52px;background:linear-gradient(var(--gold),transparent);animation:scrollLine 2.4s ease-in-out infinite}
@keyframes scrollLine{0%,100%{opacity:.25;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

.hero-stats{position:relative;z-index:3;border-top:1px solid var(--gold-dim);background:rgba(5,16,11,.55);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:26px 20px 28px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{font-family:var(--font-serif);font-size:clamp(30px,3.2vw,46px);line-height:1.1;color:var(--gold-lt);letter-spacing:.01em}
.stat-num b{font-size:.5em;font-weight:400;margin-left:4px;color:var(--gold)}
.stat p{margin-top:8px;font-size:12.5px;letter-spacing:.06em;color:var(--muted)}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(48px,7vw,110px);align-items:center}
.about-media{position:relative}
.about-photo{overflow:hidden;border:1px solid var(--line)}
.about-photo img{width:100%;aspect-ratio:5/4.3;object-fit:cover;transition:transform 1.1s var(--ease)}
.about-media:hover .about-photo img{transform:scale(1.05)}
.about-badge{
  position:absolute;left:-26px;bottom:-30px;
  padding:24px 32px;background:var(--bg-deep);border:1px solid var(--gold-dim);
  border-left:2px solid var(--gold);box-shadow:0 20px 50px rgba(0,0,0,.4);
}
.about-badge span{display:block;font-size:9px;letter-spacing:.3em;color:var(--gold)}
.about-badge strong{display:block;font-family:var(--font-serif);font-size:26px;margin-top:8px;letter-spacing:.1em}
.about-badge small{display:block;font-size:11px;color:var(--muted);margin-top:6px;letter-spacing:.05em}

.value-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:clamp(72px,9vw,130px)}
.value-card{padding:36px 30px 38px;border:1px solid var(--line);background:rgba(16,41,31,.42);transition:border-color .4s,background .4s,transform .4s var(--ease)}
.value-card:hover{border-color:var(--gold-dim);background:rgba(16,41,31,.7);transform:translateY(-5px)}
.value-no{display:block;font-family:var(--font-serif);font-size:13px;letter-spacing:.15em;color:var(--gold)}
.value-card h3{font-family:var(--font-serif);font-size:21px;font-weight:600;margin-top:20px;letter-spacing:.04em}
.value-card p{font-size:13.5px;line-height:1.95;color:var(--muted);margin-top:12px}

/* ---------- 核心业务 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.service-card{
  position:relative;overflow:hidden;min-height:360px;padding:32px 26px 30px;
  border:1px solid var(--line);background:rgba(16,41,31,.32);
  display:flex;flex-direction:column;
  transition:border-color .45s,transform .45s var(--ease),box-shadow .45s;
}
.service-card::before{
  content:"";position:absolute;inset:0;background-image:var(--card-img);
  background-size:cover;background-position:center;opacity:0;transform:scale(1.08);
  transition:opacity .6s,transform 1s var(--ease);
}
.service-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,16,11,.5),rgba(5,16,11,.92));opacity:0;transition:opacity .6s}
.service-card:hover{border-color:var(--gold-dim);transform:translateY(-6px);box-shadow:0 22px 50px rgba(0,0,0,.3)}
.service-card:hover::before{opacity:.55;transform:scale(1)}
.service-card:hover::after{opacity:1}
.service-card>*{position:relative;z-index:1}
.service-top{display:flex;align-items:flex-start;justify-content:space-between}
.service-no{font-family:var(--font-serif);font-size:12px;letter-spacing:.16em;color:var(--gold)}
.service-top svg{width:36px;height:36px;color:var(--gold);opacity:.72}
.service-card h3{font-family:var(--font-serif);font-size:23px;font-weight:600;line-height:1.55;letter-spacing:.05em;margin-top:34px}
.service-card p{font-size:13.5px;line-height:1.95;color:var(--muted);margin-top:16px;flex:1}
.service-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:24px}
.service-tags span{font-size:10.5px;letter-spacing:.05em;color:var(--gold-lt);border:1px solid var(--gold-dim);padding:4px 9px}

/* ---------- 特色项目 ---------- */
.signature{display:grid;grid-template-columns:1.08fr .92fr;min-height:660px;background:var(--bg-soft)}
.signature-media{position:relative;overflow:hidden;min-height:520px}
.signature-media img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;transition:transform 1.2s var(--ease)}
.signature:hover .signature-media img{transform:scale(1.04)}
.signature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 55%,rgba(5,16,11,.45) 100%),linear-gradient(0deg,rgba(5,16,11,.6),transparent 32%)}
.signature-media-cap{position:absolute;left:36px;bottom:32px;z-index:1;font-size:10px;letter-spacing:.24em;color:var(--gold-lt);text-shadow:0 2px 12px rgba(0,0,0,.7)}
.signature-panel{display:flex;align-items:center;padding:clamp(52px,6.5vw,110px) clamp(40px,5vw,90px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.signature-inner{max-width:560px;width:100%}
.signature-kicker{font-family:var(--font-serif);font-size:20px;margin-top:26px;color:var(--cream);letter-spacing:.05em}
.signature-kicker strong{color:var(--gold-lt);font-size:26px;font-weight:600}
.sig-features{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:32px}
.sig-features span{padding:14px 18px;background:var(--bg-soft);font-size:13px;letter-spacing:.1em;color:var(--cream);position:relative;padding-left:32px}
.sig-features span::before{content:"";position:absolute;left:16px;top:50%;width:5px;height:5px;border-radius:50%;background:var(--gold);transform:translateY(-50%)}
.sig-bottom{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;border-top:1px solid var(--line);margin-top:38px;padding-top:28px}
.sig-metric strong{font-family:var(--font-serif);font-size:50px;line-height:1;color:var(--gold-lt);font-weight:600}
.sig-metric strong span{font-size:.5em;color:var(--gold)}
.sig-metric small{display:block;font-size:11.5px;color:var(--muted);margin-top:8px;letter-spacing:.04em}
.sig-bottom>p{font-size:12.5px;color:var(--muted);text-align:right;max-width:190px;line-height:1.8}

/* ---------- 悦悦乐园 ---------- */
.camp{position:relative;padding:clamp(100px,11vw,170px) 0;overflow:hidden;background:var(--bg-deep)}
.camp-bg{position:absolute;inset:0}
.camp-bg img{width:100%;height:100%;object-fit:cover;object-position:center 55%}
.camp-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,16,11,.9) 0%,rgba(5,16,11,.78) 38%,rgba(5,16,11,.93) 100%)}
.camp-inner{position:relative;z-index:1}
.camp-head{max-width:820px}
.camp-sub{font-size:clamp(13px,1.4vw,17px);letter-spacing:.2em;color:var(--gold-lt);margin-top:24px}
.camp-desc{max-width:680px;font-size:15px;line-height:2.1;color:rgba(244,240,230,.72);margin-top:20px}
.camp-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:clamp(52px,6vw,84px)}
.camp-card{border:1px solid var(--line);background:rgba(6,20,15,.84);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:border-color .4s,transform .4s var(--ease)}
.camp-card:hover{border-color:var(--gold-dim);transform:translateY(-6px)}
.camp-card-img{overflow:hidden;aspect-ratio:16/10}
.camp-card-img img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.camp-card:hover .camp-card-img img{transform:scale(1.06)}
.camp-card-body{padding:28px 26px 26px}
.camp-card-no{font-size:10px;letter-spacing:.24em;color:var(--gold)}
.camp-card h3{font-family:var(--font-serif);font-size:25px;font-weight:600;margin-top:14px;letter-spacing:.05em}
.camp-card p{font-size:13.5px;line-height:1.95;color:var(--muted);margin-top:14px;min-height:106px}
.camp-card-foot{display:flex;flex-wrap:wrap;gap:8px 16px;border-top:1px solid var(--line);margin-top:22px;padding-top:18px;font-size:11.5px;color:var(--gold-lt)}
.camp-card-foot span+span{color:var(--muted-2)}

/* ---------- 资质与实力 ---------- */
.strength-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(28px,4vw,64px)}
.reg-card{border:1px solid var(--line);background:rgba(16,41,31,.4);padding:36px 34px 30px}
.reg-head{display:flex;flex-direction:column;gap:8px;border-bottom:1px solid var(--gold-dim);padding-bottom:22px}
.reg-head span{font-size:10px;letter-spacing:.26em;color:var(--gold)}
.reg-head strong{font-family:var(--font-serif);font-size:25px;font-weight:600;letter-spacing:.06em}
.reg-list>div{display:grid;grid-template-columns:92px 1fr;gap:18px;padding:15px 0;border-bottom:1px solid var(--line-soft)}
.reg-list dt{font-size:12.5px;color:var(--muted-2);letter-spacing:.08em}
.reg-list dd{font-size:14px;color:rgba(244,240,230,.92);line-height:1.8}
.reg-note{font-size:11px;color:var(--muted-2);margin-top:20px}
.cert-group+.cert-group{margin-top:40px;padding-top:36px;border-top:1px solid var(--line)}
.cert-group h3{display:flex;align-items:center;gap:14px;font-family:var(--font-serif);font-size:21px;font-weight:600;letter-spacing:.05em;margin-bottom:20px}
.cert-group h3 span{font-family:var(--font-serif);font-size:12px;color:var(--gold);border:1px solid var(--gold-dim);padding:4px 9px;letter-spacing:.1em}
.cert-list li{position:relative;padding:12px 0 12px 24px;font-size:14.5px;color:rgba(244,240,230,.88);border-bottom:1px solid var(--line-soft)}
.cert-list li::before{content:"";position:absolute;left:2px;top:22px;width:6px;height:6px;border:1px solid var(--gold);transform:rotate(45deg)}
.strength-list li{display:grid;grid-template-columns:170px 1fr;gap:20px;align-items:baseline;padding:13px 0;border-bottom:1px solid var(--line-soft)}
.strength-list strong{font-size:14.5px;color:var(--gold-lt);font-weight:500}
.strength-list em{font-style:normal;font-size:13px;color:var(--muted);line-height:1.8}

/* ---------- 项目库 ---------- */
.program-layout{display:grid;grid-template-columns:330px 1fr;border:1px solid var(--line);background:rgba(5,16,11,.32)}
.program-tabs{display:flex;flex-direction:column;border-right:1px solid var(--line)}
.program-tab{
  text-align:left;background:transparent;border:0;border-bottom:1px solid var(--line-soft);
  border-left:2px solid transparent;color:rgba(244,240,230,.72);
  padding:19px 24px;font-size:15px;letter-spacing:.04em;
  transition:background .35s,color .35s,border-color .35s;
}
.program-tab:last-child{border-bottom:0}
.program-tab span{font-family:var(--font-serif);font-size:11px;letter-spacing:.15em;color:var(--gold);margin-right:12px}
.program-tab i{display:block;font-style:normal;font-size:11px;color:var(--muted-2);margin-top:5px;padding-left:30px;letter-spacing:.03em}
.program-tab:hover{background:rgba(200,166,107,.06);color:var(--cream)}
.program-tab.is-active{background:linear-gradient(90deg,rgba(200,166,107,.14),rgba(200,166,107,.02));border-left-color:var(--gold);color:var(--cream)}
.program-panels{padding:clamp(30px,3.5vw,50px) clamp(26px,3.5vw,52px)}
.panel-lead{font-size:12px;letter-spacing:.2em;color:var(--gold);margin-bottom:22px}
.program-list{counter-reset:pn}
.program-list li{
  counter-increment:pn;display:grid;grid-template-columns:36px 210px 1fr;gap:14px;align-items:baseline;
  padding:15px 0;border-bottom:1px solid var(--line-soft);
}
.program-list li::before{content:counter(pn,decimal-leading-zero);font-family:var(--font-serif);font-size:12px;color:var(--gold)}
.program-list b{font-size:15px;font-weight:500;color:var(--cream)}
.program-list span{font-size:13px;color:var(--muted);line-height:1.8}
.program-foot{font-size:13px;color:var(--muted-2);margin-top:26px;line-height:1.9}

/* ---------- 合作客户 ---------- */
.client-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.client-card{border:1px solid var(--line);padding:32px 26px 34px;background:rgba(16,41,31,.3);transition:border-color .4s,transform .4s var(--ease)}
.client-card:hover{border-color:var(--gold-dim);transform:translateY(-5px)}
.client-no{font-family:var(--font-serif);font-size:12px;letter-spacing:.16em;color:var(--gold)}
.client-card h3{font-family:var(--font-serif);font-size:23px;font-weight:600;letter-spacing:.05em;margin:18px 0 20px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.client-card li{position:relative;padding:7px 0 7px 18px;font-size:13.5px;color:var(--muted)}
.client-card li::before{content:"";position:absolute;left:0;top:16px;width:5px;height:5px;border-radius:50%;background:var(--gold);opacity:.75}

/* ---------- 项目与活动场景 ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.gallery-item{position:relative;grid-column:span 5;overflow:hidden;border:1px solid var(--line);height:clamp(240px,25vw,330px);background:var(--bg-card)}
.gallery-item--wide{grid-column:span 7}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease),filter .6s}
.gallery-item::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(5,16,11,.82),rgba(5,16,11,.08) 55%);pointer-events:none}
.gallery-item:hover img{transform:scale(1.07);filter:brightness(1.08)}
.gallery-item figcaption{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:22px 26px;font-size:15px;letter-spacing:.06em;color:var(--cream)}
.gallery-item figcaption span{display:block;font-family:var(--font-serif);font-size:11px;letter-spacing:.18em;color:var(--gold-lt);margin-bottom:6px}

/* ---------- 联系我们 ---------- */
.contact{position:relative;padding:clamp(100px,11vw,160px) 0;overflow:hidden;background:var(--bg-deep)}
.contact-bg{position:absolute;inset:0}
.contact-bg img{width:100%;height:100%;object-fit:cover;object-position:center 40%;opacity:.5}
.contact-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,16,11,.95),rgba(5,16,11,.72) 55%,rgba(5,16,11,.68)),linear-gradient(0deg,rgba(5,16,11,.7),transparent 50%)}
.contact-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:clamp(50px,7vw,110px);align-items:center}
.contact-lead{font-size:16px;letter-spacing:.1em;color:var(--gold-lt);margin-top:30px}
.contact-copy .btn{margin-top:40px}
.contact-info{border:1px solid var(--gold-dim);background:rgba(6,20,15,.72);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:clamp(28px,3.5vw,44px)}
.contact-row{padding:17px 0;border-bottom:1px solid var(--line)}
.contact-row:first-child{padding-top:0}
.contact-row:last-child{border-bottom:0;padding-bottom:0}
.contact-label{display:block;font-size:11px;letter-spacing:.2em;color:var(--gold);margin-bottom:8px}
.contact-value{display:block;font-size:17px;font-weight:500;color:var(--cream);line-height:1.7}
.contact-value--addr{font-size:14px;font-weight:400;line-height:1.9;color:rgba(244,240,230,.86)}
.contact-value[data-contact]{color:var(--muted);letter-spacing:.08em;font-weight:400}
.contact-row:last-child .contact-value{font-size:14px;font-weight:400;color:rgba(244,240,230,.86)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:clamp(64px,7vw,96px) 0 26px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.45fr;gap:clamp(28px,4vw,64px)}
.brand--footer .brand-text strong{font-size:23px}
.footer-brand>p{font-size:13px;line-height:2;color:var(--muted);margin-top:24px}
.footer-col h4{font-size:12px;letter-spacing:.2em;color:var(--gold);font-weight:500;margin-bottom:22px}
.footer-col a{display:block;font-size:13px;color:var(--muted);padding:5px 0;transition:color .3s,transform .3s}
.footer-col a:hover{color:var(--gold-lt);transform:translateX(4px)}
.footer-col--addr p{font-size:13px;line-height:1.95;color:var(--muted)}
.footer-company{color:var(--cream)!important;margin-bottom:10px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:clamp(48px,6vw,78px);padding-top:24px;font-size:11.5px;color:var(--muted-2);letter-spacing:.04em}
.footer-beian{display:flex;gap:20px}
.footer-beian span:last-child{color:var(--gold)}

.back-to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;width:44px;height:44px;
  border:1px solid var(--gold-dim);background:rgba(6,20,15,.9);color:var(--gold-lt);
  font-size:18px;opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .35s,visibility .35s,transform .35s,background .3s;
}
.back-to-top.show{opacity:1;visibility:visible;transform:none}
.back-to-top:hover{background:rgba(200,166,107,.16)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .main-nav{gap:15px}
  .main-nav>a{font-size:12px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .service-card{min-height:300px}
  .client-grid{grid-template-columns:repeat(2,1fr)}
  .program-layout{grid-template-columns:280px 1fr}
  .program-list li{grid-template-columns:32px 170px 1fr}
}
@media (max-width:1024px){
  :root{--header-h:72px}
  .menu-toggle{display:flex}
  .main-nav{
    position:fixed;top:var(--header-h);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:14px clamp(24px,6vw,60px) 28px;
    background:rgba(6,20,15,.97);border-bottom:1px solid var(--line);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .3s,transform .3s,visibility .3s;
    max-height:calc(100svh - var(--header-h));overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:none}
  .main-nav>a{font-size:15px;padding:14px 0;border-bottom:1px solid var(--line-soft)}
  .main-nav>a:not(.nav-cta)::after{display:none}
  .main-nav .nav-cta{margin:20px 0 0;text-align:center;border-color:var(--gold);padding:14px}
  .about-grid,.strength-grid,.contact-inner{grid-template-columns:1fr;gap:52px}
  .about-media{max-width:640px}
  .about-badge{left:auto;right:-14px;bottom:-24px}
  .signature{grid-template-columns:1fr}
  .signature-media{min-height:420px}
  .signature-panel{padding:64px clamp(24px,6vw,60px)}
  .camp-cards{grid-template-columns:1fr 1fr}
  .camp-card:last-child{grid-column:1/-1}
  .camp-card p{min-height:0}
  .footer-top{grid-template-columns:1fr 1fr}
  .hero-scroll{display:none}
}
@media (max-width:760px){
  .container{width:calc(100% - 40px)}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px}
  .section-head-note{text-align:left;white-space:normal}
  .hero{min-height:auto}
  .hero-inner{padding-top:calc(var(--header-h) + 62px);padding-bottom:72px}
  .hero-title{font-size:clamp(36px,9.2vw,56px)}
  .hero-sub{letter-spacing:.16em;font-size:13px}
  .hero-desc{font-size:14px}
  .hero-actions{gap:12px}
  .btn{padding:13px 22px;font-size:13px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat{padding:20px 14px;border-left:0;border-top:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:0}
  .stat:nth-child(odd){border-right:1px solid var(--line);padding-left:0}
  .stat-num{font-size:32px}
  .value-row,.service-grid,.camp-cards,.client-grid{grid-template-columns:1fr}
  .camp-card:last-child{grid-column:auto}
  .value-card{padding:28px 24px}
  .service-card{min-height:0;padding:28px 24px}
  .service-card h3{margin-top:24px}
  .service-card p{flex:none}
  .program-layout{grid-template-columns:1fr}
  .program-tabs{border-right:0;border-bottom:1px solid var(--line);flex-direction:row;overflow-x:auto;scrollbar-width:none}
  .program-tabs::-webkit-scrollbar{display:none}
  .program-tab{flex:0 0 auto;white-space:nowrap;padding:14px 18px;border-bottom:0;border-left:0;border-bottom:2px solid transparent}
  .program-tab.is-active{border-left:0;border-bottom-color:var(--gold)}
  .program-tab i{display:none}
  .program-panels{padding:28px 22px}
  .program-list li{grid-template-columns:28px 1fr;gap:4px 10px}
  .program-list b{grid-column:2}
  .program-list span{grid-column:2}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-item,.gallery-item--wide{grid-column:span 1;height:230px}
  .gallery-item figcaption{font-size:13px;padding:16px}
  .reg-list>div{grid-template-columns:76px 1fr;gap:12px}
  .strength-list li{grid-template-columns:1fr;gap:4px}
  .sig-bottom{flex-direction:column;align-items:flex-start;gap:20px}
  .sig-bottom>p{text-align:left;max-width:none}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .back-to-top{right:16px;bottom:16px;width:40px;height:40px}
}
@media (max-width:420px){
  .gallery-grid{grid-template-columns:1fr}
  .gallery-item,.gallery-item--wide{grid-column:span 1;height:250px}
  .hero-actions .btn{width:100%}
  .about-badge{right:0;padding:18px 22px}
  .about-badge strong{font-size:21px}
  .sig-features{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}