/* ============================================================
   国瑞通达 Glotop · 官网初稿 全站样式
   依据《国瑞通达 VI 视觉识别规范 V1.0》路线 A（品牌蓝）
   ============================================================ */
:root{
  --blue-50:#EDF3FB; --blue-100:#D7E6F7; --blue-200:#AFCDEF; --blue-300:#82AEE2;
  --blue-400:#4C87D0; --blue-500:#2665AE; --blue-600:#1D5295; --blue-700:#163E75;
  --blue-800:#0F2B54; --blue-900:#091C38;
  --ink-0:#FFFFFF; --ink-50:#F7F8FA; --ink-100:#EDF0F4; --ink-200:#DCE1E9;
  --ink-300:#C2CAD5; --ink-400:#8D98A7; --ink-500:#666F80; --ink-700:#332B29;
  --ink-800:#22272E; --ink-900:#14181D;
  --red-500:#F8280E; --red-700:#A81806; --org-500:#F08300;
  --success:#12A150; --warning:#E8A300; --danger:#C81B08;
  --radius-sm:4px; --radius-md:8px; --radius-lg:12px;
  --shadow-card:0 2px 8px rgba(20,24,29,.06);
  --shadow-card-hover:0 6px 20px rgba(20,24,29,.10);
  --line:#DCE1E9;
  --container:1200px;
  --sec-gap:96px;
}
*{margin:0;padding:0;box-sizing:border-box}
/* 确保 hidden 属性真正生效：避免被 .news-grid 等 display 规则覆盖导致 Tab 内容同时显示 */
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{
  font-family:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Inter",sans-serif;
  font-size:16px;line-height:28px;font-weight:400;color:var(--ink-700);
  background:var(--ink-0);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--blue-500);text-decoration:none}
a:hover{color:var(--blue-600)}
:focus-visible{outline:2px solid var(--blue-200);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 40px}
.num{font-family:"Inter","Source Han Sans SC",sans-serif;font-variant-numeric:tabular-nums}

/* ---------- 字号层级 ---------- */
.h-display{font-size:56px;line-height:64px;font-weight:700;letter-spacing:-.02em}
h1.h1{font-size:48px;line-height:60px;font-weight:700;letter-spacing:-.02em;color:var(--ink-800)}
h2.h2{font-size:36px;line-height:48px;font-weight:700;letter-spacing:-.015em;color:var(--ink-800)}
h3.h3{font-size:28px;line-height:40px;font-weight:600;color:var(--ink-800)}
h4.h4{font-size:22px;line-height:32px;font-weight:600;color:var(--ink-800)}
.body-l{font-size:18px;line-height:32px}
.body-s{font-size:14px;line-height:24px}
.caption{font-size:13px;line-height:20px;color:var(--ink-500)}
.overline{font-size:12px;line-height:20px;font-weight:500;letter-spacing:.08em;color:var(--blue-500);text-transform:uppercase}
.lead{font-size:18px;line-height:32px;color:var(--ink-500);max-width:720px}

/* ---------- 顶部通知条 ---------- */
.topbar{background:var(--blue-800);color:rgba(255,255,255,.85);font-size:13px;line-height:20px;text-align:center;padding:6px 16px}
.topbar a{color:#fff;font-weight:500}

/* ---------- 页眉 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:.25s}
.site-header.scrolled{border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(20,24,29,.04)}
.nav-wrap{display:flex;align-items:center;height:72px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand .mark{height:32px;width:auto}
.brand .type .cn{height:12px;width:auto}
.brand .type .en{height:5px;width:auto;margin-top:3px}
.main-nav{display:flex;gap:36px;margin-left:56px}
.main-nav a{font-size:16px;font-weight:500;color:var(--ink-700);padding:24px 0;position:relative;white-space:nowrap}
.main-nav a:hover{color:var(--blue-500)}
.main-nav a.active{color:var(--blue-500)}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--blue-500)}
.nav-right{margin-left:auto;display:flex;align-items:center;justify-content:flex-end;gap:12px}
.nav-right .btn{padding:7px 14px;font-size:14px;line-height:20px;gap:6px;border-radius:var(--radius-md)}
/* ---------- 多语言切换：地球图标 + 下拉，置于最右侧 ---------- */
.lang-switch{position:relative;display:flex;align-items:center;margin-left:2px}
.lang-btn{display:inline-flex;align-items:center;gap:6px;background:var(--ink-0);border:1px solid var(--line);
  border-radius:999px;padding:7px 13px;cursor:pointer;color:var(--ink-700);font-size:14px;font-weight:500;
  font-family:inherit;line-height:1;white-space:nowrap;transition:.2s}
.lang-btn:hover{border-color:var(--blue-500);color:var(--blue-500)}
.lang-btn .ico-globe{width:17px;height:17px;display:block;flex-shrink:0}
.lang-btn .ico-caret{width:11px;height:11px;display:block;flex-shrink:0;transition:transform .2s}
.lang-cur{line-height:1}
.lang-switch.open .ico-caret{transform:rotate(180deg)}
.lang-switch.open .lang-btn{border-color:var(--blue-500);color:var(--blue-500)}
.lang-menu{position:absolute;top:calc(100% + 10px);right:0;min-width:144px;background:var(--ink-0);
  border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:0 14px 36px rgba(20,24,29,.14);
  padding:6px;margin:0;display:none;z-index:200}
.lang-switch.open .lang-menu{display:block}
.lang-menu li{list-style:none}
.lang-menu a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;
  border-radius:6px;font-size:14px;color:var(--ink-700);white-space:nowrap;transition:.15s}
.lang-menu a:hover{background:var(--blue-50);color:var(--blue-600)}
.lang-menu a.on{color:var(--blue-500);font-weight:600}
.lang-menu a.on::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--blue-500);flex-shrink:0}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:16px;font-weight:500;line-height:24px;padding:12px 28px;border-radius:var(--radius-md);cursor:pointer;border:none;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--blue-500);color:#fff}
.btn-primary:hover{background:var(--blue-600);color:#fff}
.btn-primary:active{background:var(--blue-700)}
.btn-outline{background:transparent;color:var(--blue-500);border:1px solid var(--blue-500)}
.btn-outline:hover{background:var(--blue-50);color:var(--blue-600)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-lg{padding:16px 40px;font-size:18px}
.btn:disabled{background:var(--blue-100);color:rgba(255,255,255,.8);cursor:not-allowed}

/* ---------- Hero（深色通栏，首页首屏专用） ---------- */
.hero{position:relative;background:var(--blue-800);color:#fff;overflow:hidden}
.hero-media{position:absolute;inset:0;background:url(../img/showroom-wide.jpg) center/cover;opacity:.32}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,28,56,.92) 0%,rgba(15,43,84,.72) 55%,rgba(15,43,84,.45) 100%)}
.hero-inner{position:relative;padding:120px 0 140px;max-width:var(--container);margin:0 auto;padding-left:40px;padding-right:40px}
.hero .overline{color:var(--blue-300)}
.hero h1{font-size:56px;line-height:64px;font-weight:700;letter-spacing:-.02em;margin:16px 0 8px}
.hero h1 .slogan-red{color:var(--org-500)}
.hero .hero-sub{font-size:20px;line-height:36px;color:rgba(255,255,255,.78);max-width:680px;margin-top:12px}
.hero-cta{display:flex;gap:16px;margin-top:44px}
.hero-reg{position:absolute;right:40px;bottom:24px;font-size:12px;color:rgba(255,255,255,.45)}
.hero-mark{position:absolute;right:6%;top:50%;transform:translateY(-50%);width:300px;opacity:.9;display:flex;flex-direction:column;align-items:center;gap:18px}
.hero-mark img.mark-w{width:150px}
.hero-mark img.cn-w{width:210px}
.hero-mark img.en-w{width:210px}

/* ---------- 信任数据带 ---------- */
.stats-band{background:var(--blue-700);color:#fff;position:relative;z-index:2}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:44px 0}
.stat{text-align:center;border-right:1px solid rgba(255,255,255,.14)}
.stat:last-child{border-right:none}
.stat .v{font-family:"Inter",sans-serif;font-size:44px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat .v em{font-style:normal;color:var(--org-400,#F7B44C)}
.stat .k{font-size:14px;color:rgba(255,255,255,.75);margin-top:4px}

/* ---------- 区块通用 ---------- */
.section{padding:var(--sec-gap) 0}
.section.alt{background:var(--ink-50)}
.sec-head{max-width:760px;margin:0 auto 56px;text-align:center}
.sec-head .overline{display:block;margin-bottom:12px}
.sec-head p{color:var(--ink-500);font-size:18px;line-height:32px;margin-top:14px}

/* ---------- 痛点 ---------- */
.pains{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.pain{background:var(--ink-0);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 20px;text-align:center;transition:.2s}
.pain:hover{box-shadow:var(--shadow-card-hover);border-color:var(--blue-200)}
.pain .ic{width:48px;height:48px;margin:0 auto 14px;border-radius:50%;background:var(--red-50,#FEEEEC);color:var(--red-700);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;font-family:"Inter",sans-serif}
.pain h4{font-size:17px;margin-bottom:6px}
.pain p{font-size:13px;line-height:20px;color:var(--ink-500)}

/* ---------- 服务卡片 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc-card{background:var(--ink-0);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;position:relative;transition:.2s;display:flex;flex-direction:column}
.svc-card:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-2px);border-color:var(--blue-200)}
.svc-card .code{font-family:"Inter",sans-serif;font-size:13px;font-weight:600;color:var(--blue-500);letter-spacing:.06em}
.svc-card .ic{width:52px;height:52px;border-radius:var(--radius-md);background:var(--blue-50);display:flex;align-items:center;justify-content:center;margin:16px 0 18px}
.svc-card .ic svg{width:26px;height:26px;stroke:var(--blue-500);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.svc-card h4{font-size:20px;margin-bottom:10px}
.svc-card p{font-size:14px;line-height:24px;color:var(--ink-500);flex:1}
.svc-tags{display:flex;gap:8px;margin-top:18px;flex-wrap:wrap}
.tag{font-size:12px;line-height:20px;padding:2px 10px;border-radius:var(--radius-sm);background:var(--blue-50);color:var(--blue-600)}
.tag.org{background:var(--org-50,#FEF4E8);color:var(--org-700,#A35A00)}
.svc-card .more{margin-top:18px;font-size:14px;font-weight:500;color:var(--blue-500);display:inline-flex;align-items:center;gap:6px}
.svc-card:hover .more{color:var(--blue-600)}

/* ---------- 三大服务体系 ---------- */
.sys-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sys-card{border-radius:var(--radius-lg);padding:36px;color:#fff;position:relative;overflow:hidden;min-height:280px;display:flex;flex-direction:column}
.sys-card.s1{background:linear-gradient(135deg,var(--blue-700),var(--blue-500))}
.sys-card.s2{background:linear-gradient(135deg,var(--blue-800),var(--blue-700))}
.sys-card.s3{background:linear-gradient(135deg,#1D5295 0%,var(--org-500) 160%)}
.sys-card .no{font-family:"Inter",sans-serif;font-size:60px;font-weight:700;opacity:.18;position:absolute;right:24px;top:12px}
.sys-card h4{color:#fff;font-size:22px;margin-bottom:14px}
.sys-card p{color:rgba(255,255,255,.82);font-size:14px;line-height:26px;flex:1}

/* ---------- 视频/展示区 ---------- */
.media-split{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
.video-box{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card-hover);background:var(--blue-900)}
.video-box img{width:100%;aspect-ratio:16/9;object-fit:cover;opacity:.72}
.video-box .play{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:#fff;text-align:center;padding:24px}
.video-box .play .pbtn{width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,.92);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 30px rgba(9,28,56,.4)}
.video-box .play .pbtn::after{content:"";display:block;margin-left:5px;border-left:22px solid var(--blue-500);border-top:13px solid transparent;border-bottom:13px solid transparent}
.video-box .play p{font-size:14px;color:rgba(255,255,255,.85);max-width:380px}
.media-split .shots{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.media-split .shots img{border-radius:var(--radius-md);aspect-ratio:4/3;object-fit:cover;width:100%}
.check-list{list-style:none;margin:22px 0 30px}
.check-list li{position:relative;padding-left:30px;margin-bottom:12px;font-size:16px;line-height:26px}
.check-list li::before{content:"";position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:50%;background:var(--blue-50);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='8' viewBox='0 0 10 8'%3E%3Cpath d='M1 4l2.8 2.8L9 1' stroke='%23266AAE' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center}

/* ---------- 国际合作 ---------- */
.coop-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.coop-grid img{border-radius:var(--radius-md);aspect-ratio:4/3;object-fit:cover;width:100%;transition:.25s}
.coop-grid a:hover img{opacity:.88}
.coop-cap{font-size:13px;color:var(--ink-500);margin-top:8px;text-align:center}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:var(--ink-0);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.2s}
.news-card:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}
.news-card>img{aspect-ratio:16/9;object-fit:cover;width:100%}
.news-card .bd{padding:22px 24px 26px}
.news-card .date{font-size:13px;color:var(--ink-400);font-family:"Inter",sans-serif}
.news-card h4{font-size:17px;line-height:26px;margin:8px 0 10px}
.news-card p{font-size:14px;color:var(--ink-500);line-height:24px}
.news-card .more{margin-top:12px;background:none;border:none;padding:0;font-size:14px;font-weight:500;color:var(--blue-500);cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.news-card .more:hover{color:var(--blue-600)}
.news-card a.more::after{content:"↗";font-size:12px;line-height:1}
.news-card .full{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.news-card .full p{margin-bottom:12px}
.news-card .full p:last-child{margin-bottom:0}
.news-card .full img.art-img{aspect-ratio:auto;height:auto;width:100%;border-radius:var(--radius-md);margin:4px 0 14px}

/* ---------- 步骤条（服务流程） ---------- */
.flow{display:grid;grid-template-columns:repeat(9,1fr);gap:10px;counter-reset:step}
.flow.f8{grid-template-columns:repeat(8,1fr)}
.flow.f7{grid-template-columns:repeat(7,1fr)}
.flow.f6{grid-template-columns:repeat(6,1fr)}
.step{counter-increment:step;background:var(--ink-50);border:1px solid var(--line);border-radius:var(--radius-md);padding:16px 12px;position:relative;font-size:13px;line-height:20px;min-height:112px}
.step::before{content:counter(step,decimal-leading-zero);display:block;font-family:"Inter",sans-serif;font-size:13px;font-weight:700;color:var(--blue-500);margin-bottom:8px}
.step::after{content:"";position:absolute;top:24px;right:-10px;width:0;height:0;border:5px solid transparent;border-left-color:var(--blue-300)}
.step:last-child::after{display:none}
.step.hl{background:var(--blue-50);border-color:var(--blue-200)}
.step.hl::before{color:var(--org-500)}

/* ---------- 服务详情区块 ---------- */
.svc-detail{padding:72px 0;border-bottom:1px solid var(--line)}
.svc-detail .dhead{display:flex;align-items:baseline;gap:16px;margin-bottom:10px}
.svc-detail .dhead .code{font-family:"Inter",sans-serif;font-size:15px;font-weight:700;color:var(--blue-500)}
.svc-detail .meta{display:flex;gap:24px;color:var(--ink-500);font-size:14px;margin:10px 0 28px}
.svc-detail h3.sub{font-size:18px;font-weight:600;color:var(--ink-800);margin:28px 0 16px}

/* ---------- 关于我们 ---------- */
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-split .pics{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-split .pics img{border-radius:var(--radius-md);aspect-ratio:4/3;object-fit:cover;width:100%}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.value-card{background:var(--ink-0);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px}
.value-card .k{font-size:13px;color:var(--blue-500);font-weight:600;letter-spacing:.06em;margin-bottom:10px}
.value-card h4{font-size:19px;margin-bottom:10px}
.value-card p{font-size:14px;color:var(--ink-500);line-height:24px}

/* ---------- 表单 ---------- */
.form-card{background:var(--ink-0);border:1px solid var(--line);border-radius:var(--radius-lg);padding:44px;box-shadow:var(--shadow-card)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:500;color:var(--ink-700)}
.field label .req{color:var(--red-500)}
.field input,.field select,.field textarea{font:inherit;font-size:15px;padding:12px 14px;border:1px solid var(--ink-300);border-radius:var(--radius-md);background:var(--ink-0);color:var(--ink-700);transition:.15s}
.field textarea{min-height:120px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue-500);outline:none;box-shadow:0 0 0 3px var(--blue-50)}
.form-note{font-size:13px;color:var(--ink-400);margin-top:16px;line-height:22px}
.contact-info{display:flex;flex-direction:column;gap:18px}
.contact-item{display:flex;gap:16px;align-items:flex-start;background:var(--ink-0);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 24px}
.contact-item .ci{width:40px;height:40px;flex-shrink:0;border-radius:var(--radius-md);background:var(--blue-50);display:flex;align-items:center;justify-content:center}
.contact-item .ci svg{width:20px;height:20px;stroke:var(--blue-500);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.contact-item h4{font-size:16px;margin-bottom:4px}
.contact-item p{font-size:14px;color:var(--ink-500);line-height:24px}

/* ---------- CTA 条 ---------- */
.cta-band{background:linear-gradient(120deg,var(--blue-800) 0%,var(--blue-600) 100%);border-radius:var(--radius-lg);padding:56px;display:flex;align-items:center;justify-content:space-between;gap:32px;color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.06)}
.cta-band h2{color:#fff;font-size:32px;line-height:44px}
.cta-band p{color:rgba(255,255,255,.8);margin-top:8px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--blue-800);color:rgba(255,255,255,.72);margin-top:var(--sec-gap)}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 48px}
.site-footer .flogo{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.site-footer .flogo .mark{height:38px}
.site-footer .flogo .cn{height:13px}
.site-footer .flogo .en{height:6px;margin-top:3px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:12px;font-size:14px;line-height:22px}
.site-footer a{color:rgba(255,255,255,.72)}
.site-footer a:hover{color:#fff}
.footer-slogan{font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,.5);margin-top:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.5);flex-wrap:wrap}

/* ---------- 页头横幅（内页） ---------- */
.page-hero{background:linear-gradient(115deg,var(--blue-800) 0%,var(--blue-700) 70%,var(--blue-600) 100%);color:#fff;padding:72px 0 64px;position:relative;overflow:hidden}
.page-hero h1{color:#fff;font-size:44px;line-height:56px;font-weight:700}
.page-hero p{color:rgba(255,255,255,.75);margin-top:12px;max-width:640px}
.page-hero .ph-img{position:absolute;right:0;top:0;bottom:0;width:46%;background-size:cover;background-position:center;opacity:.22;mask-image:linear-gradient(90deg,transparent,#000 40%);-webkit-mask-image:linear-gradient(90deg,transparent,#000 40%)}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:16px}
.breadcrumb a{color:rgba(255,255,255,.75)}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-md);margin-bottom:12px;background:var(--ink-0)}
.faq-item summary{cursor:pointer;list-style:none;padding:20px 24px;font-size:16px;font-weight:500;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--blue-500);font-weight:400}
.faq-item[open] summary::after{content:"−"}
.faq-item .fa{padding:0 24px 22px;color:var(--ink-500);font-size:15px;line-height:26px}

/* ---------- 移动端 ---------- */
.nav-toggle{display:none;margin-left:auto;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink-700);margin:5px 0;border-radius:2px}
@media (max-width:1024px){
  :root{--sec-gap:72px}
  .container{padding:0 24px}
  .hero h1,.hero .h-display{font-size:40px;line-height:52px}
  .hero-mark{display:none}
  .pains{grid-template-columns:repeat(3,1fr)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2n){border-right:none}
  .flow{grid-template-columns:repeat(3,1fr) !important}
  .step::after{display:none}
  .media-split,.about-split{grid-template-columns:1fr}
  .coop-grid{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:1fr 1fr}
  .main-nav{position:fixed;inset:72px 0 auto 0;background:#fff;flex-direction:column;gap:0;padding:8px 24px 24px;box-shadow:0 20px 40px rgba(20,24,29,.12);display:none}
  .main-nav.open{display:flex}
  .main-nav a{padding:14px 0;border-bottom:1px solid var(--ink-100)}
  .nav-toggle{display:block}
  .nav-right{gap:10px}
  .nav-right .btn{padding:6px 11px;font-size:13px}
  .lang-btn{padding:7px 10px;gap:5px}
  .lang-btn .lang-cur{display:none}
}
@media (max-width:640px){
  :root{--sec-gap:56px}
  .hero-inner{padding:72px 24px 88px}
  .hero h1{font-size:32px;line-height:44px}
  .hero .hero-sub{font-size:16px;line-height:28px}
  .stats-grid{grid-template-columns:repeat(2,1fr);padding:28px 0}
  .stat .v{font-size:30px}
  .pains{grid-template-columns:repeat(2,1fr)}
  .svc-grid,.sys-grid,.news-grid,.form-grid{grid-template-columns:1fr}
  .value-grid{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr 1fr !important}
  .cta-band{flex-direction:column;text-align:center;padding:40px 24px}
  .form-card{padding:28px 20px}
  .footer-main{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .btn{justify-content:center}
}

/* ---------- 资讯中心：标签页 + 动态内容（对接后台 API） ---------- */
.news-tabs{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap}
.news-tabs .tab{appearance:none;border:1px solid var(--line);background:var(--ink-0);color:var(--ink-500);
  padding:10px 22px;border-radius:30px;font-size:15px;cursor:pointer;transition:.2s}
.news-tabs .tab:hover{border-color:#2665AE}
.news-tabs .tab.on{background:#2665AE;border-color:#2665AE;color:#fff;font-weight:600}
.news-card .more{margin-top:12px;background:none;border:none;color:#2665AE;font-size:14px;
  cursor:pointer;padding:0;font-weight:600;font-family:inherit}
.news-card .full{margin-top:12px;border-top:1px dashed var(--line);padding-top:12px}
.news-card .full p{white-space:pre-wrap;margin:0}
.news-card.daily{border-left:4px solid #2665AE}
.news-state{padding:56px 0;text-align:center;color:var(--ink-400);font-size:15px;grid-column:1/-1}