/* ==========================================================================
   iWonder Group Holdings — 共用样式表（深色科技风）
   适配：8 页面站点 / 中英双语 / 项目网格 / 文章系统 / 分享功能
   ========================================================================== */

/* ---------- 字体 ---------- */
@font-face { font-family:'Inter'; src:url('../assets/fonts/inter-400.woff2') format('woff2'); font-weight:400; font-display:swap; }
@font-face { font-family:'Inter'; src:url('../assets/fonts/inter-500.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'Inter'; src:url('../assets/fonts/inter-600.woff2') format('woff2'); font-weight:600; font-display:swap; }
@font-face { font-family:'Inter'; src:url('../assets/fonts/inter-700.woff2') format('woff2'); font-weight:700; font-display:swap; }
@font-face { font-family:'Inter'; src:url('../assets/fonts/inter-800.woff2') format('woff2'); font-weight:800; font-display:swap; }
@font-face { font-family:'Noto Sans TC'; src:url('../assets/fonts/noto-sans-tc-400.woff2') format('woff2'); font-weight:400; font-display:swap; }
@font-face { font-family:'Noto Sans TC'; src:url('../assets/fonts/noto-sans-tc-500.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'Noto Sans TC'; src:url('../assets/fonts/noto-sans-tc-700.woff2') format('woff2'); font-weight:700; font-display:swap; }

/* ---------- 变量 ---------- */
:root{
  --bg:#050B18; --bg2:#081226; --panel:#0B1730; --panel2:#0E1E3D;
  --line:rgba(56,189,248,.14); --line2:rgba(56,189,248,.28);
  --brand:#3B98B6; --cyan:#22D3EE; --blue:#38BDF8;
  --txt:#E8F0F7; --muted:#93A8C4; --muted2:#5E7699;
  --nav-h:70px;
  --font:'Inter','Noto Sans TC','PingFang HK','PingFang SC','Microsoft JhengHei','Microsoft YaHei',Helvetica,Arial,sans-serif;
}

/* ---------- 基础 ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--txt);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:rgba(34,211,238,.28)}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
.wrap-wide{max-width:1320px;margin:0 auto;padding:0 28px}

/* ---------- 导航（单行） ---------- */
nav{position:fixed;inset:0 0 auto 0;z-index:200;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(5,11,24,.08);transition:box-shadow .3s}
nav.scrolled{box-shadow:0 6px 24px rgba(5,11,24,.10)}
.nav-inner{max-width:1320px;margin:0 auto;padding:13px 24px;display:flex;align-items:center;gap:20px}
.nav-brand img{height:42px;display:block}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:14px;font-size:12.5px;font-weight:600;letter-spacing:.04em;color:#33475E;white-space:nowrap}
/* 导航项固定宽度：切换语言时布局不跳动 */
.nav-links > a{min-width:70px;text-align:center}
.nav-links .nav-drop-toggle{min-width:82px;justify-content:center}
.nav-links a{position:relative;padding:4px 0;transition:color .2s}
.nav-links a:hover{color:#0B1730}
.nav-links a.active{color:#0B1730}
.nav-links a.active::after,.nav-links a:hover::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;background:var(--brand)}

/* 下拉菜单（ABOUT US ▾） */
.nav-drop{position:relative;display:flex;align-items:center}
.nav-drop-toggle{display:inline-flex;align-items:center;gap:5px;cursor:pointer}
.nav-drop-toggle .caret{font-size:9px;color:#7A8FA8;transition:transform .25s;line-height:1}
.nav-drop:hover .nav-drop-toggle .caret{transform:rotate(180deg)}
.nav-drop-menu{position:absolute;top:calc(100% + 16px);left:50%;transform:translateX(-50%);background:#fff;border:1px solid rgba(5,11,24,.09);border-radius:12px;box-shadow:0 20px 48px rgba(5,11,24,.16);padding:8px;min-width:196px;opacity:0;visibility:hidden;transition:opacity .2s,top .2s,visibility .2s;z-index:10}
.nav-drop-menu::before{content:"";position:absolute;top:-16px;left:0;right:0;height:16px}
.nav-drop:hover .nav-drop-menu,.nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;top:calc(100% + 10px)}
.nav-drop-menu a{display:block;padding:10px 14px;border-radius:8px;font-size:13px;font-weight:500;color:#33475E;letter-spacing:.02em;transition:background .15s,color .15s}
.nav-drop-menu a:hover{background:#F4F8FC;color:#0B1730}
.nav-drop-menu a.active{background:#F4F8FC;color:#0B1730;font-weight:700}

.nav-right{margin-left:auto;display:flex;align-items:center;gap:18px}
.nav-subs{display:flex;align-items:center;gap:22px}
.nav-subs img{height:17px;display:block;opacity:.86;transition:opacity .2s,transform .2s}
.nav-subs img:hover{opacity:1;transform:translateY(-1px)}
.lang-switch{display:flex;align-items:center;border:1px solid rgba(5,11,24,.14);border-radius:999px;overflow:hidden}
.lang-switch button{border:0;background:transparent;font-family:inherit;font-size:12px;font-weight:600;color:#5E7699;width:44px;padding:6px 0;text-align:center;cursor:pointer;transition:all .2s}
.lang-switch button.on{background:#0B1730;color:#fff}
.nav-cta{background:linear-gradient(120deg,#0E5E8A,#1277A8);color:#fff;font-size:12.5px;font-weight:600;padding:9px 17px;border-radius:999px;box-shadow:0 4px 14px rgba(18,119,168,.35);transition:transform .2s,box-shadow .2s;white-space:nowrap;min-width:160px;text-align:center}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(18,119,168,.45)}
.nav-toggle{display:none;border:1px solid rgba(5,11,24,.15);background:#fff;border-radius:8px;width:40px;height:40px;font-size:18px;color:#0B1730;cursor:pointer;margin-left:auto}
@media (max-width:1320px){ .nav-subs{gap:16px} .nav-subs img{height:15px} .nav-links{gap:16px} .nav-links > a{min-width:64px} .nav-links .nav-drop-toggle{min-width:76px} }
@media (max-width:1240px){ .nav-subs{display:none} }
@media (max-width:1080px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .nav-right .nav-cta{display:none}
  nav.open .nav-links{display:flex;flex-direction:column;align-items:stretch;position:absolute;top:100%;left:0;right:0;background:#fff;padding:14px 24px 20px;gap:4px;border-bottom:1px solid rgba(5,11,24,.1);box-shadow:0 18px 40px rgba(5,11,24,.12);margin-left:0}
  nav.open .nav-links a{padding:11px 2px;font-size:14px;border-bottom:1px solid rgba(5,11,24,.06)}
  nav.open .nav-drop{display:flex;flex-direction:column;align-items:stretch}
  nav.open .nav-drop-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 16px;min-width:0;transition:none}
  nav.open .nav-drop-toggle .caret{display:none}
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 26px;border-radius:10px;font-size:14px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s;cursor:pointer;border:0;font-family:inherit;min-width:180px;text-align:center}
.btn-primary{background:linear-gradient(120deg,#0EA5C9,#22D3EE);color:#04222B;box-shadow:0 8px 28px rgba(34,211,238,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(34,211,238,.45)}
.btn-ghost{border:1px solid var(--line2);color:#CFE7F5;background:rgba(56,189,248,.06)}
.btn-ghost:hover{background:rgba(56,189,248,.13);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:13px;min-width:140px}

/* ---------- 区块通用 ---------- */
section{padding:96px 0;position:relative}
[id]{scroll-margin-top:88px}
.sec-head{max-width:780px;margin-bottom:52px}
.sec-head .kicker{font-size:12px;font-weight:600;letter-spacing:.3em;color:var(--brand);text-transform:uppercase;display:inline-flex;align-items:center;gap:10px}
.sec-head .kicker::before{content:"";width:26px;height:1px;background:var(--brand)}
.sec-head h2{margin-top:16px;font-size:clamp(27px,3.4vw,40px);line-height:1.18;font-weight:700;letter-spacing:-.01em}
.sec-head h2 em{font-style:normal;color:var(--cyan)}
.sec-head p{margin-top:16px;color:var(--muted);font-size:15.5px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:600;letter-spacing:.28em;color:var(--cyan);text-transform:uppercase}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}

/* ---------- Hero（首页） ---------- */
.hero{position:relative;min-height:96vh;display:flex;align-items:center;background:url("../assets/hero-banner.jpg") center/cover no-repeat;isolation:isolate;padding:0}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(105deg,rgba(4,10,22,.93) 0%,rgba(5,13,30,.79) 45%,rgba(6,16,36,.63) 100%)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;opacity:.5;pointer-events:none;background:linear-gradient(rgba(56,189,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,189,248,.05) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(180deg,#000 40%,transparent 95%);-webkit-mask-image:linear-gradient(180deg,#000 40%,transparent 95%)}
.hero-content{padding:150px 0 100px}
.hero h1{margin:22px 0 6px;font-size:clamp(38px,5.6vw,68px);line-height:1.08;font-weight:700;letter-spacing:-.02em;max-width:840px}
.hero h1 .grad{background:linear-gradient(100deg,#7DD3FC 0%,#22D3EE 45%,#3B98B6 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .zh{margin-top:10px;font-size:clamp(16px,1.9vw,21px);color:#BFE3F2;letter-spacing:.5em;font-weight:500}
.hero p.lead{margin-top:24px;max-width:640px;font-size:16.5px;color:var(--muted);min-height:5.1em}
.hero-actions{margin-top:38px;display:flex;gap:16px;flex-wrap:wrap}
.hero-tags{margin-top:52px;display:flex;gap:13px;flex-wrap:wrap}
.hero-tags span{font-size:12.5px;color:#9CC4D8;border:1px solid var(--line);border-radius:999px;padding:7px 16px;background:rgba(11,23,48,.55);backdrop-filter:blur(4px)}

/* ---------- 内页页头 ---------- */
.page-header{padding:calc(var(--nav-h) + 66px) 0 8px;background:radial-gradient(900px 340px at 82% -20%,rgba(56,189,248,.09),transparent 60%),var(--bg)}
.page-header .breadcrumb{display:flex;align-items:center;gap:9px;font-size:12.5px;color:var(--muted2);margin-bottom:22px}
.page-header .breadcrumb a:hover{color:var(--cyan)}
.page-header .breadcrumb .sep{opacity:.5}
.page-header h1{font-size:clamp(30px,4vw,46px);font-weight:700;letter-spacing:-.015em;line-height:1.15}
.page-header h1 em{font-style:normal;color:var(--cyan)}
.page-header .sub{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:720px}

/* ---------- 卡片通用 ---------- */
.card{border:1px solid var(--line);border-radius:18px;background:linear-gradient(170deg,var(--panel2),var(--panel));transition:transform .3s,border-color .3s,box-shadow .3s}
.card:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.4);box-shadow:0 24px 56px rgba(2,8,20,.55)}
.card-body{padding:28px 26px}

/* 子公司卡（首页/About 用） */
.eco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.co{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:linear-gradient(170deg,var(--panel2),var(--panel));transition:transform .3s,box-shadow .3s,border-color .3s;display:flex;flex-direction:column}
.co:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.42);box-shadow:0 26px 60px rgba(2,8,20,.55)}
.co .logo-box{background:#fff;padding:26px 24px;display:flex;align-items:center;justify-content:center;height:118px}
.co .logo-box img{max-height:64px;max-width:82%;object-fit:contain}
.co .body{padding:28px 26px 30px;flex:1;display:flex;flex-direction:column}
.co .role{font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--brand);font-weight:700}
.co h3{margin-top:10px;font-size:21px;font-weight:700}
.co p{margin-top:12px;font-size:14px;color:var(--muted)}
.co ul{margin:18px 0 22px;list-style:none;display:grid;gap:10px}
.co li{font-size:13.5px;color:#B9CCE0;display:flex;gap:10px}
.co li::before{content:"";flex:0 0 6px;height:6px;border-radius:50%;margin-top:7px;background:var(--cyan);box-shadow:0 0 8px rgba(34,211,238,.6)}
.co .foot{margin-top:auto;font-size:13px;color:var(--cyan);font-weight:600;display:flex;align-items:center;gap:8px}
.co .foot::after{content:"→";transition:transform .25s}
.co:hover .foot::after{transform:translateX(5px)}
@media (max-width:980px){ .eco-grid{grid-template-columns:1fr} }

/* ---------- 数据指标 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{border:1px solid var(--line);border-radius:16px;padding:30px 24px;text-align:center;background:linear-gradient(180deg,var(--panel),transparent)}
.stat .num{font-size:clamp(32px,3.8vw,46px);font-weight:700;letter-spacing:-.02em;background:linear-gradient(120deg,#BAE6FD,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.stat .lbl{margin-top:8px;font-size:13px;color:var(--muted)}
@media (max-width:900px){ .stat-grid{grid-template-columns:repeat(2,1fr)} }

/* ---------- 项目页 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.filter-btn{padding:8px 19px;border-radius:999px;border:1px solid var(--line2);background:rgba(11,23,48,.6);color:var(--muted);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;white-space:nowrap;font-family:inherit}
.filter-btn:hover{border-color:var(--cyan);color:var(--cyan)}
.filter-btn.active{background:linear-gradient(120deg,#0EA5C9,#22D3EE);border-color:transparent;color:#04222B;font-weight:700}
.results-count{font-size:13px;color:var(--muted2);margin-bottom:26px}
.project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:22px}
.proj-card{background:linear-gradient(170deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:all .3s ease;display:flex;flex-direction:column}
.proj-card:hover{border-color:rgba(34,211,238,.42);box-shadow:0 22px 50px rgba(2,8,20,.55);transform:translateY(-4px)}
.proj-img-wrap{position:relative;height:200px;overflow:hidden;background:var(--panel);flex-shrink:0}
.proj-img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.proj-card:hover .proj-img{transform:scale(1.05)}
.proj-img-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--muted2);background:linear-gradient(135deg,var(--panel2),var(--panel));font-size:38px}
.proj-cat-badge{position:absolute;top:12px;left:12px;font-size:11px;font-weight:600;padding:4px 11px;border-radius:999px;letter-spacing:.03em;color:#fff}
.proj-body{padding:20px;display:flex;flex-direction:column;flex:1}
.proj-title{font-size:14px;font-weight:600;color:#E4EFF8;line-height:1.55;margin-bottom:9px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1;min-height:44px}
.proj-scope{font-size:12px;color:var(--muted2);margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.6em}
.proj-footer{display:flex;justify-content:space-between;align-items:center;margin-top:auto;gap:10px}
.proj-period{font-size:11.5px;color:var(--muted2)}
.view-btn{font-size:12px;font-weight:600;color:var(--cyan);border:1px solid var(--line2);background:rgba(34,211,238,.07);padding:6px 14px;border-radius:999px;cursor:pointer;transition:all .2s;white-space:nowrap;font-family:inherit}
.view-btn:hover{background:var(--cyan);border-color:var(--cyan);color:#04222B}
.status-badge{font-size:11px;font-weight:600;padding:3px 10px;border-radius:999px}
.status-ongoing{background:rgba(34,211,238,.14);color:var(--cyan);border:1px solid rgba(34,211,238,.35)}
.status-done{background:rgba(110,231,183,.12);color:#6EE7B7;border:1px solid rgba(110,231,183,.3)}
.mantus-badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:#9CC4D8;border:1px solid var(--line);border-radius:999px;padding:3px 10px;background:rgba(11,23,48,.55)}

/* 项目弹窗 */
.modal-overlay{position:fixed;inset:0;z-index:300;background:rgba(3,7,15,.82);backdrop-filter:blur(6px);display:none;align-items:flex-start;justify-content:center;overflow-y:auto;padding:60px 20px}
.modal-overlay.show{display:flex}
.modal-box{background:#0B1730;border:1px solid var(--line2);border-radius:18px;max-width:820px;width:100%;overflow:hidden;animation:modalIn .3s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
.modal-header{padding:22px 28px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.modal-cat{font-size:12px;font-weight:700;letter-spacing:.06em;margin-bottom:6px}
.modal-title{font-size:17px;font-weight:700;line-height:1.5;color:var(--txt)}
.modal-close{border:1px solid var(--line);background:transparent;color:var(--muted);width:34px;height:34px;border-radius:9px;cursor:pointer;font-size:16px;flex-shrink:0;transition:all .2s}
.modal-close:hover{border-color:var(--cyan);color:var(--cyan)}
.modal-body{padding:26px 28px 30px}
.modal-img{width:100%;height:300px;object-fit:cover;border-radius:12px;margin-bottom:18px}
.modal-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.modal-meta-item{font-size:12px;background:rgba(34,211,238,.08);border:1px solid var(--line);color:#BFE0F0;padding:5px 12px;border-radius:999px}
.modal-desc{font-size:14px;color:var(--muted);line-height:1.85;white-space:pre-line}

/* ---------- 文章（NEWS / INSIGHTS） ---------- */
.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:22px}
.article-card{border:1px solid var(--line);border-radius:16px;background:linear-gradient(170deg,var(--panel2),var(--panel));overflow:hidden;display:flex;flex-direction:column;cursor:pointer;transition:all .3s}
.article-card:hover{border-color:rgba(34,211,238,.42);transform:translateY(-4px);box-shadow:0 22px 50px rgba(2,8,20,.55)}
.article-cover{height:186px;overflow:hidden;background:var(--panel);flex-shrink:0}
.article-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.article-card:hover .article-cover img{transform:scale(1.04)}
.article-cover .no-cover{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0C2540,#081226);color:var(--muted2);font-size:32px}
.article-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.article-tag{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);margin-bottom:9px}
.article-title{font-size:17px;font-weight:700;line-height:1.45;color:#E4EFF8;margin-bottom:9px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.9em}
.article-excerpt{font-size:13.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px;flex:1;min-height:4.4em}
.article-meta{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted2)}
.empty-state{border:1px dashed var(--line2);border-radius:18px;padding:64px 32px;text-align:center;background:rgba(11,23,48,.35)}
.empty-state .icon{font-size:38px;color:var(--muted2);margin-bottom:16px}
.empty-state h3{font-size:19px;font-weight:700;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:14px;max-width:520px;margin:0 auto}

/* 文章详情页 */
.article-detail{max-width:780px;margin:0 auto}
.article-detail .article-detail-body{font-size:15.5px;color:#C7D6E5;line-height:1.95}
.article-detail .article-detail-body h2{font-size:23px;font-weight:700;color:var(--txt);margin:38px 0 14px}
.article-detail .article-detail-body h3{font-size:18px;font-weight:700;color:var(--txt);margin:28px 0 12px}
.article-detail .article-detail-body p{margin-bottom:18px}
.article-detail .article-detail-body ul,.article-detail .article-detail-body ol{margin:0 0 18px 22px}
.article-detail .article-detail-body li{margin-bottom:8px}
.article-detail .article-detail-body img{border-radius:12px;margin:10px 0 20px}
.article-detail .article-detail-body blockquote{border-left:3px solid var(--cyan);padding:6px 0 6px 18px;margin:20px 0;color:var(--muted);background:rgba(34,211,238,.05);border-radius:0 8px 8px 0}

/* 分享按钮 */
.share-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.share-bar .share-label{font-size:12.5px;color:var(--muted2);margin-right:4px}
.share-btn{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:#CFE7F5;border:1px solid var(--line2);background:rgba(56,189,248,.06);padding:8px 15px;border-radius:999px;cursor:pointer;transition:all .2s;font-family:inherit}
.share-btn:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-1px)}
.share-btn svg{width:15px;height:15px;fill:currentColor}
.share-btn.copied{border-color:#6EE7B7;color:#6EE7B7}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grid .full{grid-column:1/-1}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--muted);margin-bottom:7px;letter-spacing:.02em}
.field input,.field textarea,.field select{width:100%;background:rgba(8,18,38,.85);border:1px solid var(--line2);border-radius:10px;color:var(--txt);font-family:inherit;font-size:14px;padding:12px 14px;transition:border-color .2s;outline:none}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.field textarea{min-height:130px;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted2);margin-top:12px}

/* ---------- 底部办公室卡片 ---------- */
.offices{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:880px;margin:44px auto 0;text-align:left}
.offices .card{height:100%}
@media (max-width:760px){ .offices{grid-template-columns:1fr} }

/* ---------- 页脚（浅色） ---------- */
footer{border-top:1px solid rgba(5,11,24,.08);background:linear-gradient(180deg,#FFFFFF,#F2F6FA);padding:60px 0 40px;color:#33475E}
.foot-top{display:flex;flex-direction:column;align-items:flex-start;gap:30px}
.foot-brand img{height:58px;display:block}
.foot-subs{display:flex;gap:44px;align-items:center;flex-wrap:wrap}
.foot-subs img{height:38px;display:block;transition:transform .2s,opacity .2s}
.foot-subs img:hover{transform:translateY(-2px);opacity:.85}
.foot-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:40px;padding-top:34px;border-top:1px solid rgba(5,11,24,.08)}
.foot-col h6{font-size:12.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#0B1730;margin-bottom:14px}
.foot-col ul{list-style:none;display:grid;gap:9px}
.foot-col a{font-size:13.5px;color:#5E7699;transition:color .2s}
.foot-col a:hover{color:#0E5E8A}
.foot-col p{font-size:13.5px;color:#5E7699}
.foot-col li{font-size:13.5px;color:#5E7699;line-height:1.7}
.foot-addr{display:grid;gap:13px;margin-top:15px;font-size:12.6px;line-height:1.72;color:#7A8FA8}
.foot-addr b{display:block;color:#33475E;font-weight:700;font-size:12.4px;margin-bottom:2px}
.foot-tag{margin-top:34px;color:#5E7699;font-size:14px;max-width:760px}
.foot-tag b{color:#1F3348;font-weight:600}
.foot-bottom{margin-top:28px;padding-top:20px;border-top:1px solid rgba(5,11,24,.08);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12.5px;color:#7A8FA8}
@media (max-width:900px){ .foot-cols{grid-template-columns:repeat(2,1fr)} }

/* ---------- 语言显示控制 ---------- */
[data-lang]{/* 由 JS 控制显示 */}
html[data-current-lang="en"] [data-lang="zh"],html[data-current-lang="zh"] [data-lang="en"]{display:none !important}

/* ---------- 滚动动画 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 工具类 ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}.mt-48{margin-top:48px}
.mb-24{margin-bottom:24px}.mb-32{margin-bottom:32px}.mb-48{margin-bottom:48px}
.center{text-align:center}
@media (max-width:900px){ .grid-2,.grid-3{grid-template-columns:1fr} }


/* ==========================================================================
   首頁區塊樣式（依線上版 1:1 對齊 · 2026-09-24）
   來源：https://iwonderholdings.com 內聯 <style> 移植
   ========================================================================== */

/* ---------- Hero 滾動提示 ---------- */
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-size:11px;letter-spacing:.3em;color:var(--muted2);text-transform:uppercase;animation:floaty 2.4s ease-in-out infinite}

/* ---------- Vision 理念 ---------- */
.vision{background:radial-gradient(1000px 480px at 80% -10%,rgba(56,189,248,.08),transparent 60%),var(--bg)}
.vision-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.vision .big{font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:600}
.vision .big em{font-style:normal;color:var(--cyan)}
.vision .sub{margin-top:22px;color:var(--muted);font-size:15.5px}
.vision-card{background:linear-gradient(160deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:18px;padding:34px 30px;position:relative;overflow:hidden}
.vision-card::before{content:"";position:absolute;inset:-40% -40% auto auto;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(34,211,238,.16),transparent 70%)}
.vision-card h3{position:relative;font-size:13px;letter-spacing:.24em;color:var(--cyan);text-transform:uppercase;font-weight:600}
.vision-card p{position:relative;margin-top:14px;font-size:15px;color:var(--muted)}
.vision-card ul{position:relative;margin-top:18px;list-style:none;display:grid;gap:12px}
.vision-card li{display:flex;gap:12px;font-size:14.5px;color:#C8D9E8}
.vision-card li::before{content:"";flex:0 0 8px;height:8px;border-radius:2px;margin-top:7px;background:linear-gradient(120deg,var(--blue),var(--cyan));box-shadow:0 0 10px rgba(34,211,238,.5)}

/* ---------- Core Tech 核心技術 ---------- */
.core{background:var(--bg2)}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cmp{border-radius:18px;padding:36px 32px;border:1px solid var(--line);position:relative;overflow:hidden;background:linear-gradient(165deg,var(--panel),var(--bg))}
.cmp.hot{border-color:rgba(34,211,238,.4);background:linear-gradient(165deg,#0C2540,#081226);box-shadow:0 0 0 1px rgba(34,211,238,.08),0 24px 60px rgba(2,8,20,.5)}
.cmp .tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;padding:6px 14px;border-radius:999px;border:1px solid var(--line2);color:var(--muted)}
.cmp.hot .tag{border-color:rgba(34,211,238,.55);color:var(--cyan);background:rgba(34,211,238,.08)}
.cmp h3{margin-top:18px;font-size:22px;font-weight:700}
.cmp ul{margin-top:20px;list-style:none;display:grid;gap:14px}
.cmp li{display:flex;gap:12px;font-size:14.5px;color:var(--muted)}
.cmp li::before{content:"\2715";color:#F87171;font-weight:700;flex:0 0 auto}
.cmp.hot li{color:#C8D9E8}
.cmp.hot li::before{content:"\2713";color:var(--cyan);text-shadow:0 0 12px rgba(34,211,238,.7)}

/* ---------- Ecosystem 生態環境 ---------- */
.eco{background:var(--bg)}

/* ---------- Loop 數據閉環 ---------- */
.loop{background:var(--bg2);overflow:hidden}
.loop-track{display:grid;grid-template-columns:1fr 60px 1fr 60px 1fr;align-items:stretch;gap:0;margin-top:10px}
.loop-node{border:1px solid var(--line);border-radius:16px;padding:26px 24px;background:linear-gradient(165deg,var(--panel),var(--bg2));position:relative}
.loop-node .step{font-size:11px;letter-spacing:.24em;color:var(--muted2);text-transform:uppercase;font-weight:700}
.loop-node h4{margin-top:10px;font-size:19px;font-weight:700}
.loop-node p{margin-top:8px;font-size:13.5px;color:var(--muted)}
.loop-arrow{position:relative;display:flex;align-items:center;justify-content:center;height:44px}
.loop-arrow::before{content:"";position:absolute;left:6px;right:6px;top:50%;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);transform:translateY(-50%)}
.loop-arrow::after{content:"";position:absolute;top:50%;width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan);transform:translateY(-50%);animation:pulseX 2.6s linear infinite}
.loop-return{margin-top:26px;display:flex;align-items:center;gap:16px;justify-content:center}
.loop-return .rail{flex:1;max-width:640px;height:2px;border-radius:2px;position:relative;background:linear-gradient(90deg,var(--cyan),rgba(34,211,238,.15));overflow:visible}
.loop-return .rail::after{content:"";position:absolute;top:50%;width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan);transform:translateY(-50%);animation:pulseBack 3s linear infinite}
.loop-return span{font-size:13px;color:var(--cyan);font-weight:600;letter-spacing:.06em;white-space:nowrap}

/* ---------- Stats 數據指標 ---------- */
.stats{background:var(--bg)}

/* ---------- Locations 據點 ---------- */
.loc{background:var(--bg2)}
.loc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.loc-card{border:1px solid var(--line);border-radius:16px;padding:28px 26px;background:linear-gradient(170deg,var(--panel),var(--bg2));transition:border-color .3s,transform .3s}
.loc-card:hover{border-color:rgba(34,211,238,.4);transform:translateY(-4px)}
.loc-card .pin{font-size:12px;letter-spacing:.2em;color:var(--brand);text-transform:uppercase;font-weight:700}
.loc-card h4{margin-top:10px;font-size:18px;font-weight:700}
.loc-card p{margin-top:10px;font-size:13.5px;color:var(--muted)}

/* ---------- CTA 諮詢 ---------- */
.cta{background:radial-gradient(900px 420px at 50% -10%,rgba(34,211,238,.10),transparent 60%),var(--bg)}
.cta h2{text-align:center;font-size:clamp(30px,4vw,46px);font-weight:700;letter-spacing:-.01em}
.cta h2 em{font-style:normal;color:var(--cyan)}
.cta .sub{text-align:center;color:var(--muted);max-width:680px;margin:16px auto 0;font-size:16px}
.cta-grid{margin-top:52px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cta-card{border:1px solid var(--line);border-radius:18px;padding:32px 28px;text-align:left;background:linear-gradient(170deg,var(--panel2),var(--panel));transition:transform .3s,border-color .3s}
.cta-card:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.45)}
.cta-card .ico{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.3);font-size:20px;color:var(--cyan)}
.cta-card h4{margin-top:18px;font-size:18px;font-weight:700}
.cta-card p{margin-top:10px;font-size:14px;color:var(--muted)}
.cta-card .go{margin-top:18px;font-size:13.5px;font-weight:600;color:var(--cyan)}

/* ---------- Get in Touch（淺色聯繫區，與線上版一致） ---------- */
.contact-block{background:#ffffff;padding:72px 24px 64px;color:#113763}
.contact-block .contact-wrap{max-width:1180px;margin:0 auto}
.contact-block .contact-kicker{text-align:center;color:#2b73d2;font-size:13px;font-weight:700;letter-spacing:2px;text-transform:uppercase;margin-bottom:12px}
.contact-block h2{text-align:center;font-size:38px;line-height:1.2;margin:0 0 16px;color:#103766}
.contact-block .contact-intro{text-align:center;max-width:980px;margin:0 auto 44px;color:#4b5f78;font-size:15px}
.contact-block h3{font-size:24px;margin:0 0 20px;color:#103766}
.contact-block .office-list{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:28px}
.contact-block .office-card{display:flex;gap:16px;background:#eaf4ff;border-radius:10px;padding:20px}
.contact-block .office-icon{width:36px;height:36px;border-radius:9px;background:#123b6d;color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 36px;font-weight:700}
.contact-block .office-card strong{display:block;margin-bottom:8px;color:#103766}
.contact-block .office-card p{margin:0 0 8px;color:#344b64;line-height:1.6;font-size:15px}
.contact-block .office-card a{color:#0b74ff;text-decoration:none;font-size:15px}
.contact-block .contact-submit{display:block;box-sizing:border-box;text-align:center;background:linear-gradient(90deg,#438bd0,#27639b);color:#fff;font-weight:700;font-size:18px;padding:15px 22px;border-radius:9px;text-decoration:none;box-shadow:0 8px 18px rgba(39,99,155,.22);margin-top:6px}
.contact-block .contact-submit:hover{filter:brightness(1.05)}

/* ---------- 關鍵幀（依線上版） ---------- */
@keyframes floaty{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}
@keyframes pulseX{0%{left:4px;opacity:0}12%{opacity:1}88%{opacity:1}100%{left:calc(100% - 14px);opacity:0}}
@keyframes pulseY{0%{top:4px;opacity:0}12%{opacity:1}88%{opacity:1}100%{top:calc(100% - 14px);opacity:0}}
@keyframes pulseBack{0%{right:0;opacity:0}12%{opacity:1}88%{opacity:1}100%{right:calc(100% - 10px);opacity:0}}

/* ---------- 響應式（≤900px，依線上版） ---------- */
@media (max-width:900px){
  .vision-grid{grid-template-columns:1fr;gap:36px}
  .compare{grid-template-columns:1fr}
  .loop-track{grid-template-columns:1fr}
  .loop-arrow{height:44px}
  .loop-arrow::before{left:50%;top:6px;bottom:6px;right:auto;width:2px;height:auto;background:linear-gradient(180deg,transparent,var(--cyan),transparent);transform:none}
  .loop-arrow::after{left:50%;transform:translateX(-50%);animation:pulseY 2.6s linear infinite}
  .loc-grid{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
}
@media (max-width:800px){
  .contact-block{padding:56px 18px}
  .contact-block .office-list{grid-template-columns:1fr}
  .contact-block h2{font-size:32px}
}