@font-face{font-family:'DIN Pro';src:url('../fonts/DINPro-Black.otf');font-weight:900;font-display:swap}
@font-face{font-family:'DIN Pro';src:url('../fonts/DINPro-Medium.otf');font-weight:500;font-display:swap}
@font-face{font-family:'DIN Pro';src:url('../fonts/DINPro-Regular.otf');font-weight:400;font-display:swap}
@font-face{font-family:'Han Serif';src:url('../fonts/SourceHanSerifCN-Heavy.otf');font-weight:900;font-display:swap}
:root{
  --blue-600:#1257B8;--blue-500:#2A6FD6;--navy-900:#0A2A63;--navy-950:#06204F;
  --gold-500:#F3B01C;--ink-900:#16243D;--ink-500:#5A6B86;--paper-50:#F4F7FB;--line:#E2E9F3;
  --din:'DIN Pro',system-ui,sans-serif;
  --serif:'Han Serif','Songti SC',serif;
  --ui:'PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--ui);color:var(--ink-900);background:#fff;overflow-x:hidden}
a{color:inherit;text-decoration:none}

/* ---------- top nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:18px 48px;background:linear-gradient(180deg,rgba(3,15,40,.55),rgba(3,15,40,0));transition:.3s}
.nav.solid{background:var(--navy-900);box-shadow:0 6px 24px rgba(0,0,0,.18)}
.nav .logo{height:42px}
.nav ul{display:flex;gap:30px;list-style:none}
.nav ul a{color:#fff;font-size:15px;letter-spacing:.5px;padding:6px 0;position:relative;opacity:.92}
.nav ul a.active,.nav ul a:hover{opacity:1}
.nav ul a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--gold-500)}
.nav .tools{display:flex;align-items:center;gap:18px;color:#fff;font-size:14px}
.nav .tools .cn{display:inline-flex;align-items:center;gap:7px;border:1px solid rgba(255,255,255,.5);border-radius:20px;padding:3px 12px;font-family:var(--din);font-weight:500}
/* 占位：语言切换旋转地球 gif —— 现热链天辰素材，待替换为本地 assets/img/lang-earth.gif */
.nav .tools .cn::before{content:"";width:17px;height:17px;border-radius:50%;flex:0 0 17px;
  background:url('https://www.china-tcc.com/cn/res/images/diqiu2.gif') no-repeat center/130% 130%;border:1px solid rgba(255,255,255,.55)}

/* ---------- hero（比例对标 cncec 2:1；切换改天辰式淡入淡出 swiper-fade） ---------- */
.hero{position:relative;height:min(50vw,92vh);max-height:960px;min-height:520px;overflow:hidden;background:#06204F}
.hero .slide{position:absolute;inset:0;opacity:0;transition:opacity .95s ease;z-index:1;pointer-events:none}
.hero .slide.on{opacity:1;z-index:3;pointer-events:auto}
.hero .slide .bg{position:absolute;inset:0;background-size:cover;background-position:center}
.hero .inner{position:absolute;z-index:3;left:0;right:0;bottom:0;top:0;
  max-width:1280px;margin:0 auto;padding:0 48px 150px;display:flex;flex-direction:column;justify-content:flex-end}
/* 文案随切换延迟升入（复刻 cncec .img-text top150%→50%, delay .3s） */
.hero .inner>*{opacity:0;transform:translateY(44px)}
.hero .slide.on .inner>*{opacity:1;transform:none;transition:opacity .6s ease,transform .6s ease}
.hero .slide.on .inner .eyebrow{transition-delay:.3s}
.hero .slide.on .inner h1{transition-delay:.42s}
.hero .slide.on .inner .sub{transition-delay:.54s}
.hero .eyebrow{color:#dbe7ff;font-size:15px;letter-spacing:.4em;margin-bottom:16px;font-weight:500;
  position:relative;padding-left:46px}
.hero .eyebrow::before{content:"";position:absolute;left:0;top:50%;width:34px;height:2px;background:var(--gold-500)}
.hero .eyebrow .een{font-family:var(--din);font-weight:900;font-size:12px;letter-spacing:.22em;
  color:rgba(255,255,255,.55);margin-left:16px;text-transform:uppercase}
.hero h1{font-family:var(--serif);color:#fff;font-size:clamp(2rem,3.7vw,3.5rem);line-height:1.3;
  letter-spacing:.06em;text-shadow:0 4px 30px rgba(0,0,0,.35);white-space:nowrap}
.hero .sub{font-family:var(--din);font-weight:500;color:rgba(255,255,255,.85);
  font-size:clamp(.9rem,1.3vw,1.15rem);letter-spacing:.22em;margin-top:16px;text-transform:uppercase}

/* ring keys（cncec：五字母居左下，小巧） */
.keys{position:absolute;z-index:4;left:50%;transform:translateX(-50%);bottom:44px;
  width:100%;max-width:1280px;padding:0 48px;display:flex;gap:10px;align-items:center}
.key{position:relative;width:54px;height:54px;display:grid;place-items:center;cursor:pointer;border-radius:50%}
.key .lab{font-family:var(--din);font-weight:900;font-size:15px;color:rgba(255,255,255,.55);letter-spacing:.05em;transition:.3s}
.key.on .lab{color:#fff}
.key svg{position:absolute;inset:0;transform:rotate(-90deg)}
.key svg .track{fill:none;stroke:rgba(255,255,255,.22);stroke-width:2}
.key svg .prog{fill:none;stroke:var(--gold-500);stroke-width:3;stroke-linecap:round;
  stroke-dasharray:226;stroke-dashoffset:226;opacity:0}
.key.on svg .prog{opacity:1;animation:ring var(--dur,6s) linear forwards}
@keyframes ring{from{stroke-dashoffset:226}to{stroke-dashoffset:0}}
.scrollhint{position:absolute;z-index:4;right:50px;bottom:44px;color:rgba(255,255,255,.8);
  font-family:var(--din);font-size:12px;letter-spacing:.2em;text-align:center}
.scrollhint i{display:block;width:1px;height:42px;margin:0 auto 8px;background:linear-gradient(rgba(255,255,255,.7),transparent);animation:down 1.8s infinite}
@keyframes down{0%{transform:translateY(-8px);opacity:0}50%{opacity:1}100%{transform:translateY(8px);opacity:0}}

/* ---------- section header system ----------
   cncec 首页节奏：一屏≈一个大板块（其各板块高 960–1220px），留白要大 */
.section{position:relative;padding:150px 48px}
.section .wrap{max-width:1280px;margin:0 auto}
.shead{position:relative;margin-bottom:72px}
/* cncec：巨大空心英文衬底压在标题后 */
.shead .en{font-family:var(--din);font-weight:900;text-transform:uppercase;font-size:clamp(3.4rem,7vw,6.4rem);
  line-height:.9;letter-spacing:.01em;position:absolute;left:-4px;top:-26px;white-space:nowrap;
  color:transparent;-webkit-text-stroke:1.5px rgba(18,87,184,.13)}
.shead .cn{position:relative;font-family:var(--serif);font-size:2.3rem;letter-spacing:.04em}
.shead .tag{position:relative;margin-left:18px;font-size:15px;color:var(--ink-500);letter-spacing:.1em}
.shead .ul{position:relative;width:46px;height:3px;background:var(--gold-500);margin-top:18px}
/* cncec：更多→ 悬停箭头右滑 */
.shead .more{position:absolute;right:0;bottom:6px;display:inline-flex;align-items:center;gap:12px;
  font-size:14px;color:var(--ink-500);letter-spacing:.08em;transition:color .3s}
.shead .more .ar{font-family:var(--din);transition:transform .3s cubic-bezier(.4,0,.2,1)}
.shead .more:hover{color:var(--blue-600)}
.shead .more:hover .ar{transform:translateX(12px)}

/* about (deep navy) */
.about{background:radial-gradient(120% 120% at 70% 10%,var(--navy-900),var(--navy-950));color:#fff;overflow:hidden}
.about .shead .en{color:rgba(255,255,255,.08)}
.about .shead .cn{color:#fff}.about .shead .tag{color:#9fb6e0}
.about .dots{position:absolute;inset:0;opacity:.5;
  background-image:radial-gradient(rgba(120,160,230,.25) 1px,transparent 1px);background-size:26px 26px;pointer-events:none}
.lead{position:relative;max-width:50em;color:#d7e3fb;line-height:2;font-size:16px;margin-bottom:60px}
.lead b{color:#fff;font-weight:600}
.stats{position:relative;display:flex;flex-wrap:wrap;gap:38px 64px}
.stat{min-width:150px}
.stat .n{font-family:var(--din);font-weight:900;font-size:clamp(2.6rem,4.4vw,3.8rem);line-height:1;color:#fff}
.stat .n sup{font-size:.42em;color:var(--gold-500);vertical-align:super;margin-left:2px}
.stat .n .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--gold-500);margin-left:6px;vertical-align:middle}
.stat .c{margin-top:14px;color:#aebfe0;font-size:14px;letter-spacing:.06em}

/* cards */
.cards{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:64px}
.card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:8px;
  padding:30px 24px;transition:.3s;cursor:pointer}
.card:hover{background:rgba(255,255,255,.1);transform:translateY(-6px);border-color:var(--gold-500)}
.card .ic{width:40px;height:40px;border-radius:8px;background:var(--gold-500);
  display:grid;place-items:center;color:var(--navy-950);font-weight:900;font-family:var(--din);margin-bottom:18px}
.card .t{font-size:17px;color:#fff;letter-spacing:.04em}
.card .e{font-family:var(--din);font-size:12px;color:#8ba2cf;text-transform:uppercase;letter-spacing:.12em;margin-top:6px}

/* footer */
.foot{background:var(--navy-950);color:#9fb0d2;padding:46px 48px;text-align:center;font-size:13px;letter-spacing:.05em}
.foot img{height:38px;margin-bottom:18px;opacity:.92}
.foot .row{max-width:1280px;margin:0 auto;display:flex;gap:26px;justify-content:center;flex-wrap:wrap;margin-bottom:18px}
.foot .row a:hover{color:#fff}
.note{background:#fffbe9;border-top:2px solid var(--gold-500);color:#7a5b00;font-size:13px;padding:14px 48px;text-align:center;letter-spacing:.03em}

/* ===== extended sections ===== */
.paper{background:var(--paper-50)}
.about .shead .en{color:transparent;-webkit-text-stroke:1.5px rgba(255,255,255,.14)}
.about .shead .more{color:#9fb6e0}.about .shead .more:hover{color:#fff}
/* business：全出血全景大图 + 悬浮胶囊热点（复刻 cncec 业务领域整屏） */
.bizfull{padding:0;overflow:hidden}
.bizfull .scene{position:relative}
.bizfull .scene>img{width:100%;height:clamp(600px,92vh,960px);object-fit:cover;display:block}
.bizfull .scene::before{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(6,32,79,.66),rgba(6,32,79,.18) 38%,transparent 58%),
             linear-gradient(0deg,rgba(6,32,79,.6),transparent 30%)}
.bizfull .bhead{position:absolute;top:96px;left:0;right:0;z-index:4}
.bizfull .bhead .in{max-width:1280px;margin:0 auto;padding:0 48px;position:relative}
.bizfull .bhead .en{font-family:var(--din);font-weight:900;text-transform:uppercase;font-size:clamp(3.4rem,7vw,6.4rem);
  line-height:.9;position:absolute;left:44px;top:-26px;white-space:nowrap;color:transparent;-webkit-text-stroke:1.5px rgba(255,255,255,.22)}
.bizfull .bhead .cn{position:relative;font-family:var(--serif);font-size:2.3rem;color:#fff;letter-spacing:.04em}
.bizfull .bhead .tag{position:relative;margin-left:18px;font-size:15px;color:#dbe7ff;letter-spacing:.1em}
.bizfull .bhead .ul{width:46px;height:3px;background:var(--gold-500);margin-top:18px}
.bizfull .bhead .more{position:absolute;right:48px;bottom:6px;display:inline-flex;align-items:center;gap:12px;
  font-size:14px;color:#dbe7ff;letter-spacing:.08em;transition:color .3s}
.bizfull .bhead .more .ar{font-family:var(--din);transition:transform .3s cubic-bezier(.4,0,.2,1)}
.bizfull .bhead .more:hover{color:#fff}.bizfull .bhead .more:hover .ar{transform:translateX(12px)}
/* 胶囊热点：整齐一排居中排在大图下沿（散点不好融入实景图） */
.spots{position:absolute;left:0;right:0;bottom:52px;z-index:3;
  display:flex;justify-content:center;align-items:center;gap:16px;flex-wrap:wrap;padding:0 48px}
.spot{position:relative;display:inline-flex;align-items:center;height:50px;padding:0 26px 0 58px;border-radius:25px;
  background:rgba(0,60,150,.82);border:1px solid rgba(255,255,255,.22);color:#fff;font-size:15.5px;letter-spacing:.08em;cursor:pointer;
  backdrop-filter:blur(3px);transition:background .3s,transform .3s;white-space:nowrap}
.spot:hover{background:var(--blue-600);transform:translateY(-4px);z-index:6}
.spot .dot{position:absolute;left:-1px;top:50%;transform:translateY(-50%);width:50px;height:50px;border-radius:50%;
  background:#073c96;box-shadow:0 0 0 8px rgba(0,114,220,.45);animation:pulse 2.2s infinite}
.spot .dot::before{content:"";position:absolute;inset:16px;background:#fff;border-radius:50%}
@keyframes pulse{0%,100%{box-shadow:0 0 0 6px rgba(0,114,220,.5)}50%{box-shadow:0 0 0 13px rgba(0,114,220,.22)}}
.spot .tip{position:absolute;bottom:64px;left:50%;width:320px;background:#fff;color:var(--ink-500);border-radius:10px;
  padding:16px 20px;font-size:13px;line-height:1.9;box-shadow:0 18px 44px rgba(6,32,79,.28);white-space:normal;
  opacity:0;visibility:hidden;transform:translate(-50%,10px);transition:.3s;z-index:7;letter-spacing:0}
.spot .tip b{display:block;color:var(--ink-900);font-size:14.5px;margin-bottom:6px;font-family:var(--serif)}
.spot .tip .bi{font-family:var(--din);font-weight:900;font-size:11px;color:var(--gold-500);letter-spacing:.14em;display:block;margin-bottom:2px}
.spot:hover .tip{opacity:1;visibility:visible;transform:translate(-50%,0)}
.biz{display:none;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.bcard{background:#fff;border:1px solid var(--line);border-radius:10px;padding:30px 26px;transition:.3s}
.bcard:hover{box-shadow:0 18px 40px rgba(18,87,184,.13);transform:translateY(-6px);border-color:transparent}
.bcard .bi{font-family:var(--din);font-weight:900;font-size:12px;color:var(--gold-500);letter-spacing:.14em}
.bcard h3{font-family:var(--serif);font-size:1.3rem;margin:10px 0 12px;color:var(--ink-900)}
.bcard p{color:var(--ink-500);font-size:13.5px;line-height:1.95}
/* projects：加大成整屏级卡片（cncec 尺度），底图 + 深蓝渐变压字 */
.proj{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pcard{position:relative;border-radius:12px;overflow:hidden;min-height:420px;background:linear-gradient(165deg,#12448f,#0a2a63 70%);border:1px solid rgba(255,255,255,.1);padding:28px;display:flex;flex-direction:column;justify-content:flex-end;transition:.35s}
.pcard .cimg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .6s ease}
.pcard:hover .cimg{transform:scale(1.06)}
.pcard::before{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(10,42,99,.18),rgba(6,32,79,.55) 55%,rgba(4,20,50,.92))}
.pcard>*:not(.cimg){position:relative;z-index:2}
.pcard:hover{transform:translateY(-8px);border-color:var(--gold-500);box-shadow:0 26px 60px rgba(6,32,79,.45)}
.pcard .idx{position:absolute;top:16px;right:20px;font-family:var(--din);font-weight:900;font-size:3.4rem;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px rgba(255,255,255,.22)}
.pcard .tag{position:absolute;top:24px;left:22px;font-size:12px;color:#cfe0ff;border:1px solid rgba(255,255,255,.3);border-radius:20px;padding:4px 14px}
.pcard h4{color:#fff;font-size:1.22rem;line-height:1.55;font-family:var(--serif)}
.pcard .loc{color:#9fb6e0;font-size:12.5px;margin-top:10px;font-family:var(--din);letter-spacing:.05em}
.pcard .bar{width:30px;height:3px;background:var(--gold-500);margin-bottom:16px;transition:width .35s}
.pcard:hover .bar{width:52px}
/* innovation（复刻 cncec 科技创新：深蓝底 + 四列悬停展开） */
.tech{background:
  radial-gradient(90% 130% at 85% 0%,rgba(42,111,214,.35),transparent 60%),
  linear-gradient(135deg,#08245a 0%,#123e8f 58%,#071f4d 100%);color:#fff;overflow:hidden}
.tech .shead .en{color:transparent;-webkit-text-stroke:1.5px rgba(255,255,255,.14)}
.tech .shead .cn{color:#fff}.tech .shead .tag{color:#9fb6e0}
.tech .shead .more{color:#9fb6e0}.tech .shead .more:hover{color:#fff}
.tcols{display:flex;gap:16px;align-items:stretch}
.tcol{position:relative;flex:1;min-height:440px;border-radius:12px;padding:34px 28px;cursor:pointer;overflow:hidden;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  display:flex;flex-direction:column;justify-content:flex-end;
  transition:flex .5s cubic-bezier(.4,0,.2,1),background .35s,border-color .35s}
.tcol .cimg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .6s ease}
.tcol::before{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(8,36,90,.06),rgba(7,31,77,.42) 55%,rgba(5,22,58,.92))}
.tcol>*:not(.cimg){position:relative;z-index:2}
.tcol:hover{flex:1.9;background:rgba(255,255,255,.13);border-color:var(--gold-500)}
.tcol:hover .cimg{transform:scale(1.06)}
.tcol .n{font-family:var(--din);font-weight:900;font-size:clamp(2.2rem,3.6vw,3.2rem);color:#fff;line-height:1}
.tcol .n sup{font-size:.4em;color:var(--gold-500);margin-left:2px}
.tcol .sp{width:30px;height:3px;background:var(--gold-500);margin:16px 0 12px}
.tcol h4{font-family:var(--serif);font-size:1.15rem;letter-spacing:.04em}
.tcol p{color:#c6d5f2;font-size:13px;line-height:1.9;max-height:0;opacity:0;transition:.4s .08s;overflow:hidden}
.tcol:hover p{max-height:220px;opacity:1;margin-top:10px}
.innohl{margin-top:34px;background:rgba(255,255,255,.08);border-left:4px solid var(--gold-500);border-radius:8px;
  padding:22px 28px;color:#dbe7ff;font-size:15px;line-height:1.95}
.innohl b{color:#fff}
/* news（复刻 cncec：左图片轮播+金色日期角标，右页签+头条+列表） */
.news{display:grid;grid-template-columns:1.12fr 1fr;gap:38px;align-items:stretch}
.nph{position:relative;border-radius:10px;overflow:hidden;min-height:460px;background:#0a2a63}
.nph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.nph .db{position:absolute;left:0;top:0;z-index:2;background:var(--gold-500);color:#fff;padding:9px 13px;text-align:center;font-family:var(--din)}
.nph .db b{display:block;font-weight:900;font-size:1.55rem;line-height:1}
.nph .db span{font-size:11px;letter-spacing:.06em}
.nph .cap{position:absolute;left:0;right:0;bottom:0;z-index:2;color:#fff;font-size:15px;line-height:1.6;
  padding:46px 22px 16px;background:linear-gradient(transparent,rgba(4,16,44,.85))}
.ntabs{display:flex;gap:10px;margin-bottom:22px}
.ntab{padding:10px 24px;background:#e9f0fa;border-radius:5px;font-size:15px;cursor:pointer;transition:.25s;color:var(--ink-900);letter-spacing:.04em}
.ntab.on,.ntab:hover{background:var(--blue-600);color:#fff}
.ngroup{display:none}.ngroup.on{display:block}
/* news.html 头条卡（含真实照片位） */
.nfeat{border-radius:10px;overflow:hidden;background:#fff;border:1px solid var(--line)}
.nfeat .ph{height:240px;background:linear-gradient(135deg,#1257B8,#0a2a63);background-size:cover;background-position:center;display:flex;align-items:flex-end;padding:24px;position:relative}
.nfeat .ph.photo::before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(4,16,44,.72),rgba(4,16,44,.1) 62%)}
.nfeat .ph .d{position:relative;color:#fff;font-family:var(--din);font-weight:900;font-size:1.9rem}
.nfeat .tx{padding:22px 24px}
.nfeat .tx h4{font-size:1.12rem;color:var(--ink-900);line-height:1.5;font-family:var(--serif)}
.nfeat .tx p{color:var(--ink-500);font-size:13.5px;margin-top:10px;line-height:1.85}
.nfeat2{padding-bottom:16px;border-bottom:1px solid var(--line)}
.nfeat2 .date{font-family:var(--din);font-weight:500;font-size:14px;color:var(--blue-600);letter-spacing:.04em}
.nfeat2 h4{font-family:var(--serif);font-size:1.16rem;color:var(--ink-900);line-height:1.55;margin:8px 0 10px;transition:.25s;cursor:pointer}
.nfeat2 h4:hover{color:var(--blue-600)}
.nfeat2 p{color:var(--ink-500);font-size:13.5px;line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nlist{list-style:none;display:flex;flex-direction:column}
.nlist li{display:flex;gap:18px;padding:15px 0;border-bottom:1px solid var(--line);cursor:pointer;transition:.25s}
.nlist li:hover{padding-left:8px}
.nlist .dt{font-family:var(--din);text-align:center;min-width:52px;color:var(--blue-600)}
.nlist .dt b{display:block;font-size:1.4rem;font-weight:900;line-height:1}
.nlist .dt span{font-size:11px;color:var(--ink-500)}
.nlist .ti{color:var(--ink-900);font-size:14.5px;line-height:1.55}
.nlist li:hover .ti{color:var(--blue-600)}
/* party / social（复刻 cncec：左右分屏，左社责影像蓝调，右党建红金） */
.split2{display:grid;grid-template-columns:1fr 1fr;min-height:540px}
.half{position:relative;padding:76px 64px;display:flex;flex-direction:column;align-items:flex-start;color:#fff;overflow:hidden}
.half .bg{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform .8s ease}
.half:hover .bg{transform:scale(1.05)}
.half.soc::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,32,79,.82),rgba(6,32,79,.58) 55%,rgba(6,32,79,.78))}
.half.soc .slog,.half.soc p{text-shadow:0 2px 14px rgba(4,16,44,.65)}
.half.red{background:
  linear-gradient(115deg,transparent 55%,rgba(255,255,255,.05) 55.2%,transparent 72%),
  linear-gradient(100deg,transparent 68%,rgba(243,176,28,.16) 68.2%,transparent 86%),
  linear-gradient(135deg,#b8121b 0%,#d7301f 52%,#e8541e 100%)}
.half>*{position:relative;z-index:2}
.half .en{font-family:var(--din);font-weight:900;font-size:12px;letter-spacing:.2em;color:rgba(255,255,255,.65);text-transform:uppercase}
.half h3{font-family:var(--serif);font-size:1.9rem;letter-spacing:.06em;margin:10px 0 4px}
.half .tg{font-size:13.5px;color:rgba(255,255,255,.78);letter-spacing:.12em;margin-bottom:26px}
.half .slog{font-family:var(--serif);font-size:1.5rem;line-height:1.7;letter-spacing:.06em;margin-bottom:18px}
.half p{font-size:13.5px;line-height:2;color:rgba(255,255,255,.88);max-width:30em}
.half .rows{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.half .rows span{border:1px solid rgba(255,255,255,.4);border-radius:18px;padding:5px 16px;font-size:12.5px;letter-spacing:.06em;transition:.3s;cursor:pointer}
.half .rows span:hover{background:rgba(255,255,255,.16)}
.half .more2{margin-top:auto;display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.6);
  border-radius:22px;padding:9px 28px;font-size:13.5px;letter-spacing:.1em;transition:.3s;margin-top:34px}
.half .more2 .ar{font-family:var(--din);transition:transform .3s cubic-bezier(.4,0,.2,1)}
.half .more2:hover{background:#fff}
.half.soc .more2:hover{color:var(--navy-950)}
.half.red .more2:hover{color:#c0161d}
.half .more2:hover .ar{transform:translateX(8px)}
@media(max-width:980px){.proj{grid-template-columns:repeat(2,1fr)}.pcard{min-height:300px}.news{grid-template-columns:1fr}
  .biz{display:grid;grid-template-columns:1fr 1fr;padding:40px 22px 0}.spots{display:none}.tcols{flex-direction:column}.tcol{min-height:0;padding:24px}
  .tcol p{max-height:none;opacity:1;margin-top:10px}.split2{grid-template-columns:1fr}.half{padding:56px 24px;min-height:420px}
  .bizfull{padding:0}.bizfull .scene>img{height:70vh;min-height:480px}.bizfull .bhead{top:56px}.bizfull .bhead .in{padding:0 22px}
  .bizfull .bhead .en{left:18px;font-size:14vw}.bizfull .bhead .more{position:static;margin-top:10px}}
@media(max-width:980px){
  .nav{padding:14px 20px}.nav ul{display:none}
  .section{padding:70px 22px}.keys{padding:0 20px;bottom:22px;gap:6px}.key{width:44px;height:44px}.key .lab{font-size:12px}
  .hero{height:auto;min-height:0;aspect-ratio:2/1}.hero .inner{padding:0 22px 84px}.hero h1{white-space:normal}
  .cards{grid-template-columns:repeat(2,1fr)}
  .shead .en{font-size:14vw}.scrollhint{display:none}.shead .more{position:static;margin-top:10px}
}

/* ===== shared polish + inner pages ===== */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
/* rich footer */
.sitefoot{background:var(--navy-950);color:#93a6c8;padding:58px 48px 26px}
.sitefoot .ft-top{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.sitefoot .brand img{height:44px;margin-bottom:18px}
.sitefoot .brand p{font-size:13px;line-height:1.9;color:#7f92b6;max-width:24em}
.sitefoot .col h5{color:#fff;font-size:15px;margin-bottom:15px;font-weight:600;letter-spacing:.04em}
.sitefoot .col a{display:block;color:#93a6c8;font-size:13px;line-height:2.15}
.sitefoot .col a:hover{color:var(--gold-500)}
.sitefoot .qr .box{width:96px;height:96px;background:#fff;border-radius:8px;margin-bottom:6px;display:grid;place-items:center;color:#0a2a63;font-size:11px;text-align:center;line-height:1.4;overflow:hidden}
.sitefoot .qr .box img{width:100%;height:100%;object-fit:contain}
.sitefoot .qr .qcap{display:block;font-size:12px;color:#7f92b6;margin-bottom:10px}
.sitefoot .ft-bot{max-width:1280px;margin:22px auto 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12px;color:#6d80a6}
.sitefoot .ft-bot a{color:#6d80a6}.sitefoot .ft-bot a:hover{color:#fff}
/* 占位：页脚友情链接旁动态地球 gif —— 现热链天辰素材，待替换为本地 assets/img/foot-earth.gif */
.sitefoot .ft-bot .globe{display:inline-block;width:15px;height:15px;border-radius:50%;vertical-align:-2px;margin-right:6px;
  background:url('https://www.china-tcc.com/upload/image/2026-03/col117/1773619700744.gif') no-repeat center/135% 135%;border:1px solid rgba(255,255,255,.3)}
/* 业务频道页：页签切换详情（仿天辰 主营业务 tab 交互） */
.bpanel{grid-template-columns:1fr 1.15fr;gap:46px;align-items:center}
.bpanel .bd .bi{font-family:var(--din);font-weight:900;font-size:12px;color:var(--gold-500);letter-spacing:.16em}
.bpanel .bd h3{font-family:var(--serif);font-size:1.7rem;color:var(--ink-900);margin:10px 0 4px}
.bpanel .bd .ul{width:38px;height:3px;background:var(--gold-500);margin:14px 0 20px}
.bpanel .bd p{color:var(--ink-500);font-size:14.5px;line-height:2.05}
.bpanel .bp{border-radius:12px;overflow:hidden;box-shadow:0 20px 50px rgba(18,87,184,.14)}
.bpanel .bp img{width:100%;display:block}
.ngroup.bpanel.on{display:grid;animation:fadeUp .5s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
@media(max-width:980px){.bpanel{grid-template-columns:1fr;gap:24px}}
/* inner page banner */
.pbanner{position:relative;height:330px;display:flex;align-items:center;overflow:hidden;background:linear-gradient(120deg,#0a2a63,#12448f)}
.pbanner .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.45}
.pbanner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,20,50,.86),rgba(6,20,50,.3))}
.pbanner .in{position:relative;z-index:2;max-width:1280px;margin:0 auto;padding:0 48px;width:100%;color:#fff}
.pbanner .en{font-family:var(--din);font-weight:900;text-transform:uppercase;font-size:clamp(2.6rem,6vw,5rem);color:rgba(255,255,255,.13);line-height:.9;position:absolute;top:-46px;left:44px}
.pbanner h1{position:relative;font-family:var(--serif);font-size:clamp(2rem,3.4vw,2.7rem);letter-spacing:.05em}
.pbanner .ul{width:48px;height:3px;background:var(--gold-500);margin-top:16px}
/* breadcrumb */
.crumb{background:var(--paper-50);border-bottom:1px solid var(--line)}
.crumb .in{max-width:1280px;margin:0 auto;padding:13px 48px;font-size:13px;color:var(--ink-500)}
.crumb a:hover{color:var(--blue-600)}.crumb b{color:var(--ink-900);font-weight:500}
/* prose + timeline + honors + leader */
.prose{max-width:54em;color:var(--ink-900);line-height:2.05;font-size:15.5px}
.prose p{margin-bottom:15px}.prose b{color:var(--blue-600)}
.tl{position:relative;margin-left:8px;padding-left:34px;border-left:2px solid var(--line)}
.tl .it{position:relative;padding-bottom:30px}
.tl .it::before{content:"";position:absolute;left:-42px;top:2px;width:14px;height:14px;border-radius:50%;background:var(--gold-500);box-shadow:0 0 0 4px rgba(243,176,28,.18)}
.tl .yr{font-family:var(--din);font-weight:900;font-size:1.45rem;color:var(--blue-600);line-height:1}
.tl .ev{color:var(--ink-500);font-size:14.5px;margin-top:6px;line-height:1.7}
.honors{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.hon{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:8px;padding:18px 20px;transition:.3s}
.hon:hover{border-color:var(--gold-500);box-shadow:0 12px 30px rgba(18,87,184,.1)}
.hon .m{width:36px;height:36px;flex:0 0 36px;border-radius:50%;background:linear-gradient(135deg,var(--gold-500),#e59500);display:grid;place-items:center;color:#fff;font-family:var(--serif);font-size:13px}
.hon .t{font-size:14px;color:var(--ink-900);line-height:1.55}
.leader{display:grid;grid-template-columns:320px 1fr;gap:44px;align-items:start}
.leader .ph{background:linear-gradient(160deg,#12448f,#0a2a63);border-radius:10px;overflow:hidden;color:#fff}
.leader .ph img{width:100%;display:block}
.leader .ph .cap{padding:18px 22px}
.leader .ph .nm{font-family:var(--serif);font-size:1.3rem}
.leader .ph .ti{font-size:13px;color:#cfe0ff;margin-top:6px;line-height:1.6}
.leader .msg{color:var(--ink-900);line-height:2.05;font-size:15.5px}
.leader .msg p{margin-bottom:13px}
.leader .sign{margin-top:12px;text-align:right;font-family:var(--serif);color:var(--blue-600)}
.pager{display:flex;gap:8px;justify-content:center;margin-top:44px}
.pager a{min-width:38px;height:38px;padding:0 12px;display:grid;place-items:center;border:1px solid var(--line);border-radius:6px;font-family:var(--din);font-size:14px;color:var(--ink-500)}
.pager a.on,.pager a:hover{background:var(--blue-600);color:#fff;border-color:var(--blue-600)}
@media(max-width:980px){.honors{grid-template-columns:1fr}.leader{grid-template-columns:1fr}.sitefoot .ft-top{grid-template-columns:1fr 1fr}.pbanner{height:230px}.pbanner .in,.crumb .in,.sitefoot{padding-left:20px;padding-right:20px}}