/* =========================================================
   RSK DESIGN 官网 · 黑金风格样式表
   设计原则：黑金为骨、实拍为肉、科技为魂
   ========================================================= */

:root{
  --black:#0a0a0b;          /* 主底色 */
  --black-2:#111113;        /* 次级底色 */
  --black-3:#17171a;        /* 卡片底 */
  --black-4:#1e1e22;        /* 浮起底 */
  --gold:#c9a961;           /* 香槟金 · 主点缀 */
  --gold-2:#e2c88a;         /* 亮金 */
  --gold-3:#8c7440;         /* 暗金 */
  --ink:#e8e6e1;            /* 正文浅色 */
  --ink-2:#a8a49c;          /* 次要文字 */
  --ink-3:#6f6c66;          /* 辅助文字 */
  --line:rgba(201,169,97,.16);   /* 金色分隔线 */
  --line-2:rgba(255,255,255,.08);
  --wrap:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  background:var(--black);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",-apple-system,sans-serif;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 40px}

/* 金色渐变文字 */
.gold-grad{
  background:linear-gradient(100deg,var(--gold-3),var(--gold-2) 45%,var(--gold));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}

/* ================= 导航 ================= */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s var(--ease),backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(10,10,11,.92);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner{
  max-width:1360px;margin:0 auto;padding:0 40px;height:78px;
  display:flex;align-items:center;gap:40px;
}
.logo{display:flex;align-items:center;flex-shrink:0}
.logo img{height:38px;width:auto}
.logo-img{height:34px;width:auto;display:block}
.logo-text{display:none;
  display:none;font-size:26px;font-weight:800;letter-spacing:1px;
  color:#fff;
}
.logo-text i{font-style:normal;color:var(--gold);font-weight:300;letter-spacing:3px}

.menu{display:flex;gap:30px;margin-left:auto}
.menu a{
  font-size:15px;color:var(--ink-2);position:relative;padding:6px 0;
  transition:color .3s;letter-spacing:.5px;
}
.menu a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:linear-gradient(90deg,var(--gold),transparent);
  transition:width .35s var(--ease);
}
.menu a:hover,.menu a.active{color:var(--gold-2)}
.menu a:hover::after,.menu a.active::after{width:100%}

.nav-phone{
  font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px;
  white-space:nowrap;padding-left:32px;border-left:1px solid var(--line);
}
.nav-phone b{color:var(--gold-2);font-size:15px;letter-spacing:.5px}
.nav-phone .dot{
  width:6px;height:6px;border-radius:50%;background:var(--gold);
  box-shadow:0 0 8px var(--gold);animation:pulse 2s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger i{display:block;width:24px;height:2px;background:var(--gold);margin:5px 0;transition:.3s}

/* ================= 首屏 ================= */
.hero{
  position:relative;min-height:100vh;min-height:100dvh;display:flex;align-items:center;
  overflow:hidden;
}
.hero-slides{position:absolute;inset:0}
.hero-slide{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transition:opacity 1.6s var(--ease);transform:scale(1.08);
}
.hero-slide.active{opacity:1;transform:scale(1);transition:opacity 1.6s var(--ease),transform 8s linear}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(10,10,11,.97) 0%,rgba(10,10,11,.88) 38%,rgba(10,10,11,.45) 70%,rgba(10,10,11,.7) 100%),
    linear-gradient(0deg,rgba(10,10,11,1) 0%,transparent 35%);
}
/* 科技网格 */
.hero-grid{
  position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:76px 76px;
  mask-image:radial-gradient(ellipse at 28% 50%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 28% 50%,#000 0%,transparent 72%);
}

.hero-content{position:relative;z-index:3;max-width:var(--wrap);margin:0 auto;padding:140px 40px 100px;width:100%}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:2px;
  color:var(--gold-2);border:1px solid var(--line);border-radius:40px;
  padding:8px 20px;background:rgba(201,169,97,.06);margin-bottom:34px;
}
.hero-tag span{width:5px;height:5px;border-radius:50%;background:var(--gold);box-shadow:0 0 6px var(--gold)}

.hero-title{font-weight:800;line-height:1.16;margin-bottom:26px}
.hero-title .line1{
  display:block;font-size:19px;font-weight:400;letter-spacing:5px;
  color:var(--ink-2);margin-bottom:20px;
}
.hero-title .line2{
  display:block;font-size:clamp(38px,5.2vw,74px);letter-spacing:-1px;color:#fff;
}
.hero-title em{
  font-style:normal;position:relative;white-space:nowrap;
  background:linear-gradient(100deg,var(--gold-3),var(--gold-2) 50%,var(--gold));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-sub{
  font-size:clamp(15px,1.5vw,20px);color:var(--gold-2);letter-spacing:1.5px;
  margin-bottom:20px;font-weight:300;
}
.hero-desc{
  max-width:620px;font-size:15px;color:var(--ink-2);line-height:2;margin-bottom:52px;
}

.hero-entries{display:flex;gap:16px;flex-wrap:wrap}
.entry{
  display:flex;align-items:center;gap:16px;padding:20px 26px;min-width:240px;
  background:rgba(255,255,255,.035);border:1px solid var(--line-2);
  backdrop-filter:blur(8px);transition:.4s var(--ease);position:relative;overflow:hidden;
}
.entry::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--gold),transparent);opacity:0;transition:.4s;
}
.entry:hover{background:rgba(201,169,97,.09);border-color:var(--line);transform:translateY(-4px)}
.entry:hover::before{opacity:1}
.entry-num{font-size:13px;color:var(--gold-3);font-weight:700;letter-spacing:1px}
.entry-main{display:flex;flex-direction:column;font-size:17px;color:#fff;font-weight:600}
.entry-main small{font-size:12px;color:var(--ink-3);font-weight:400;letter-spacing:.5px;margin-top:3px}
.entry-arrow{margin-left:auto;color:var(--gold);transition:transform .4s var(--ease)}
.entry:hover .entry-arrow{transform:translateX(5px)}

.hero-scroll{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);
  font-size:11px;letter-spacing:3px;color:var(--ink-3);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:10px;
}
.hero-scroll span{width:1px;height:36px;background:linear-gradient(180deg,var(--gold),transparent);animation:sc 2s infinite}
@keyframes sc{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
.hero-dots{position:absolute;right:40px;bottom:60px;z-index:3;display:flex;gap:10px}
.hero-dots i{width:26px;height:2px;background:rgba(255,255,255,.2);cursor:pointer;transition:.4s}
.hero-dots i.on{background:var(--gold);width:44px}

/* ================= 数据条 ================= */
.stats{
  background:linear-gradient(180deg,var(--black-2),var(--black));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:0;position:relative;
}
.stats::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.5;
}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{
  padding:52px 34px;text-align:center;position:relative;
}
.stat+.stat::before{
  content:"";position:absolute;left:0;top:28%;bottom:28%;width:1px;
  background:linear-gradient(180deg,transparent,var(--line),transparent);
}
.stat-num{font-size:clamp(34px,3.6vw,52px);font-weight:800;line-height:1;letter-spacing:-1px;
  color:var(--gold-2);font-family:"DIN Alternate","Bebas Neue",sans-serif;}
.stat-num i{font-style:normal;font-size:.5em;color:var(--gold-3);margin-left:4px;font-weight:400}
.stat-label{margin-top:14px;font-size:15px;color:var(--ink);letter-spacing:1px}
.stat-note{margin-top:6px;font-size:12px;color:var(--ink-3);letter-spacing:.5px}

/* ================= 通用区块 ================= */
.sec{padding:110px 0;position:relative}
.sec-head{text-align:center;margin-bottom:62px}
.sec-eyebrow{
  font-size:12px;letter-spacing:5px;color:var(--gold-3);margin-bottom:16px;font-weight:600;
}
.sec-title{
  font-size:clamp(28px,3.4vw,44px);font-weight:800;color:#fff;letter-spacing:1px;
  position:relative;display:inline-block;
}
.sec-title::after{
  content:"";display:block;width:52px;height:2px;margin:22px auto 0;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.sec-sub{margin-top:20px;font-size:15px;color:var(--ink-2);letter-spacing:.5px}
.sec-head.light .sec-title{color:#fff}

/* ================= 公司实力 ================= */
.strength{background:var(--black)}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card-4{
  background:linear-gradient(160deg,var(--black-3),var(--black-2));
  border:1px solid var(--line-2);padding:38px 30px;position:relative;
  transition:.45s var(--ease);overflow:hidden;
}
.card-4::after{
  content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,169,97,.1),transparent 70%);
  opacity:0;transition:.6s;
}
.card-4:hover{border-color:var(--line);transform:translateY(-6px);background:linear-gradient(160deg,var(--black-4),var(--black-2))}
.card-4:hover::after{opacity:1}
.card-4-no{font-size:13px;font-weight:700;color:var(--gold-3);letter-spacing:2px;margin-bottom:20px}
.card-4 h3{font-size:19px;color:#fff;margin-bottom:14px;letter-spacing:.5px}
.card-4 p{font-size:14px;color:var(--ink-2);line-height:1.9}
.card-4-line{position:absolute;left:0;bottom:0;height:2px;width:0;background:linear-gradient(90deg,var(--gold),transparent);transition:.5s var(--ease)}
.card-4:hover .card-4-line{width:100%}

.cert-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:22px}
.cert{
  display:flex;align-items:center;gap:18px;padding:24px 28px;
  border:1px solid var(--line-2);background:rgba(255,255,255,.02);transition:.4s;
}
.cert:hover{border-color:var(--line);background:rgba(201,169,97,.05)}
.cert-badge{
  font-size:12px;font-weight:700;letter-spacing:.5px;padding:9px 14px;border-radius:4px;
  background:linear-gradient(135deg,var(--gold),var(--gold-3));color:#1a1408;white-space:nowrap;
}
.cert-badge.apple{background:linear-gradient(135deg,#d8d8d8,#8f8f8f);color:#1a1a1a}
.cert-badge.knx{background:linear-gradient(135deg,#4a9c6d,#2d6647);color:#fff}
.cert-txt{font-size:15px;color:#fff;font-weight:600}
.cert-txt small{display:block;font-size:12px;color:var(--ink-3);font-weight:400;margin-top:3px}

/* ================= 明星案例 ================= */
.projects{background:linear-gradient(180deg,var(--black),var(--black-2))}
.case-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px;margin-bottom:56px}
.case{position:relative;overflow:hidden;display:block;border:1px solid var(--line-2)}
.case-img{
  background-size:cover;background-position:center;
  transition:transform .8s var(--ease);filter:brightness(.85);
}
.case-lg .case-img{height:440px}
.case:not(.case-lg) .case-img{height:440px}
.case:hover .case-img{transform:scale(1.07);filter:brightness(1)}
.case-meta{
  position:absolute;left:0;right:0;bottom:0;padding:30px 28px;
  background:linear-gradient(0deg,rgba(10,10,11,.96),rgba(10,10,11,.6) 55%,transparent);
}
.case-tag{
  display:inline-block;font-size:11px;letter-spacing:1.5px;color:var(--gold-2);
  border:1px solid var(--line);padding:4px 12px;border-radius:30px;margin-bottom:12px;
  background:rgba(201,169,97,.08);
}
.case-meta h3{font-size:20px;color:#fff;margin-bottom:9px;letter-spacing:.5px}
.case-info{display:flex;gap:20px;font-size:12.5px;color:var(--ink-2)}
.case-info span{position:relative;padding-left:14px}
.case-info span::before{content:"";position:absolute;left:0;top:50%;width:5px;height:5px;background:var(--gold-3);transform:translateY(-50%) rotate(45deg)}

/* 图纸对照 */
.plan-compare{border:1px solid var(--line-2);background:linear-gradient(160deg,var(--black-2),var(--black-3));padding:44px}
.pc-head{text-align:center;margin-bottom:36px}
.pc-head h3{font-size:22px;color:#fff;letter-spacing:.5px}
.pc-head p{font-size:14px;color:var(--ink-3);margin-top:10px}
.pc-body{display:grid;grid-template-columns:1fr auto 1fr;gap:26px;align-items:center}
.pc-item{border:1px solid var(--line-2);position:relative;overflow:hidden}
.pc-item img{width:100%;height:300px;object-fit:cover;transition:.7s var(--ease)}
.pc-item:hover img{transform:scale(1.05)}
.pc-item figcaption{
  padding:16px 20px;font-size:13px;color:var(--ink-2);
  background:var(--black);border-top:1px solid var(--line-2);
}
.pc-item figcaption b{color:var(--gold-2);margin-right:10px}
.pc-arrow{color:var(--gold);font-size:26px;opacity:.7}
.sec-more{text-align:center;margin-top:48px}
.btn-ghost{
  display:inline-block;padding:15px 42px;border:1px solid var(--line);color:var(--gold-2);
  font-size:14px;letter-spacing:2px;transition:.4s var(--ease);position:relative;overflow:hidden;
}
.btn-ghost:hover{background:var(--gold);color:#1a1408;border-color:var(--gold);letter-spacing:3px}

/* ================= 技术中心 ================= */
.tech{background:var(--black-2);position:relative}
.tech::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse at 50% 0%,rgba(201,169,97,.07),transparent 60%);
}
.tech-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:20px;position:relative}
.tech-main{position:relative;overflow:hidden;display:block;border:1px solid var(--line-2)}
.tech-main .tech-img{height:520px;background-size:cover;background-position:center;transition:.8s var(--ease);filter:brightness(.8)}
.tech-main:hover .tech-img{transform:scale(1.05);filter:brightness(.95)}
.play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:78px;height:78px;border-radius:50%;border:1px solid var(--gold);
  display:flex;align-items:center;justify-content:center;
  background:rgba(10,10,11,.5);backdrop-filter:blur(4px);transition:.4s;
}
.play i{width:0;height:0;border-left:16px solid var(--gold-2);border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:5px}
.tech-main:hover .play{background:var(--gold);transform:translate(-50%,-50%) scale(1.1)}
.tech-main:hover .play i{border-left-color:#1a1408}
.tech-cap{padding:22px 26px;background:var(--black-3);border-top:1px solid var(--line-2)}
.tech-cap b{display:block;font-size:17px;color:#fff}
.tech-cap small{font-size:12.5px;color:var(--ink-3)}
.tech-side{display:grid;grid-template-rows:repeat(3,1fr);gap:20px}
.tech-sm{position:relative;overflow:hidden;display:block;border:1px solid var(--line-2)}
.tech-sm .tech-img{height:100%;min-height:120px;background-size:cover;background-position:center;transition:.7s var(--ease);filter:brightness(.75)}
.tech-sm:hover .tech-img{transform:scale(1.06);filter:brightness(.95)}
.tech-sm .tech-cap{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(0deg,rgba(10,10,11,.95),transparent);border-top:0;padding:16px 20px}
.tech-sm .tech-cap b{font-size:15px}

/* ================= 行业动态 + 项目播报 ================= */
.news{background:var(--black)}
.news-wrap{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.col-head{display:flex;align-items:baseline;gap:16px;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:14px;position:relative}
.col-head::after{content:"";position:absolute;left:0;bottom:-1px;width:64px;height:2px;background:var(--gold)}
.col-head h2{font-size:24px;color:#fff;letter-spacing:1px}
.col-en{font-size:11px;letter-spacing:3px;color:var(--gold-3)}
.col-more{margin-left:auto;font-size:13px;color:var(--ink-3);transition:.3s}
.col-more:hover{color:var(--gold-2)}

.news-list li{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line-2);transition:.4s}
.news-list li:hover{padding-left:8px}
.news-date{
  flex-shrink:0;width:66px;text-align:center;border-right:1px solid var(--line-2);padding-right:16px;
}
.news-date b{display:block;font-size:30px;font-weight:800;color:var(--gold-2);line-height:1;font-family:"DIN Alternate",sans-serif}
.news-date span{font-size:11px;color:var(--ink-3);letter-spacing:1px}
.news-body h3{font-size:16px;color:var(--ink);font-weight:600;line-height:1.6;margin-bottom:8px;transition:.3s}
.news-body a:hover h3{color:var(--gold-2)}
.news-body p{font-size:13px;color:var(--ink-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-src{margin-top:10px;font-size:11.5px;color:var(--gold-3);letter-spacing:.5px}

.report-list li{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line-2);transition:.4s}
.report-list li:hover{background:rgba(201,169,97,.03)}
.report-img{
  flex-shrink:0;width:130px;height:92px;background-size:cover;background-position:center;
  border:1px solid var(--line-2);position:relative;
}
.report-img::after{
  content:"实拍";position:absolute;left:0;bottom:0;font-size:10px;padding:2px 7px;
  background:rgba(201,169,97,.85);color:#1a1408;letter-spacing:1px;
}
.report-body{flex:1;min-width:0}
.report-top{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.report-badge{font-size:11.5px;color:var(--gold-2);border:1px solid var(--line);padding:2px 10px;border-radius:30px}
.report-time{margin-left:auto;font-size:12px;color:var(--ink-3);font-family:"DIN Alternate",sans-serif}
.report-body h3{font-size:15.5px;color:var(--ink);font-weight:600;margin-bottom:6px;line-height:1.5}
.report-body p{font-size:12.5px;color:var(--ink-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ================= 服务流程 ================= */
.service{background:linear-gradient(180deg,var(--black-2),var(--black))}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative}
.step{
  padding:38px 22px;text-align:center;position:relative;
  border:1px solid var(--line-2);border-right:0;background:rgba(255,255,255,.015);
  transition:.45s var(--ease);
}
.step:last-child{border-right:1px solid var(--line-2)}
.step:hover{background:rgba(201,169,97,.07);transform:translateY(-6px);border-color:var(--line)}
.step-no{
  font-size:34px;font-weight:800;line-height:1;margin-bottom:18px;
  color:transparent;-webkit-text-stroke:1px var(--gold-3);font-family:"DIN Alternate",sans-serif;
  transition:.45s;
}
.step:hover .step-no{-webkit-text-stroke:1px var(--gold-2);color:rgba(201,169,97,.12)}
.step h3{font-size:16px;color:#fff;margin-bottom:10px;letter-spacing:.5px}
.step p{font-size:12.5px;color:var(--ink-3);line-height:1.7}
.step::after{
  content:"";position:absolute;right:-7px;top:50%;width:12px;height:12px;
  border-top:1px solid var(--line);border-right:1px solid var(--line);
  transform:translateY(-50%) rotate(45deg);background:var(--black);z-index:2;
}
.step:last-child::after{display:none}

/* ================= 联系我们 ================= */
.contact{
  background-color:var(--black);
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:100px 0;position:relative;
}
.contact::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(100deg,rgba(10,10,11,.97) 0%,rgba(10,10,11,.9) 45%,rgba(10,10,11,.72) 100%);
}
.contact-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr 1fr;gap:70px;align-items:center}
.contact-left h2{font-size:clamp(30px,3.4vw,42px);font-weight:800;color:#fff;line-height:1.35;margin:18px 0 22px;letter-spacing:.5px}
.contact-left p{font-size:15px;color:var(--ink-2);max-width:460px;margin-bottom:38px;line-height:2}
.btn-gold{
  display:inline-block;padding:18px 46px;font-size:15px;letter-spacing:2px;font-weight:600;
  background:linear-gradient(100deg,var(--gold),var(--gold-2));color:#1a1408;
  transition:.4s var(--ease);box-shadow:0 12px 34px rgba(201,169,97,.22);
}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(201,169,97,.36);letter-spacing:3px}
.contact-right{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-2)}
.ci{background:rgba(10,10,11,.72);padding:26px 24px;backdrop-filter:blur(6px)}
.ci span{display:block;font-size:12px;color:var(--ink-3);letter-spacing:2px;margin-bottom:10px}
.ci b{font-size:16px;color:var(--gold-2);font-weight:600}

/* ================= 页脚 ================= */
.footer{background:var(--black-2);padding:70px 0 0}
.foot-wrap{display:grid;grid-template-columns:1.4fr .8fr 1.5fr auto;gap:44px;padding-bottom:50px}
.foot-logo{font-size:30px;font-weight:800;color:#fff;letter-spacing:1px;margin-bottom:20px}
.foot-logo i{font-style:normal;color:var(--gold);font-weight:300;letter-spacing:4px}
.foot-brand p{font-size:13px;color:var(--ink-3);line-height:2}
.foot-links h4{font-size:14px;color:#fff;margin-bottom:22px;letter-spacing:1px;position:relative;padding-bottom:12px}
.foot-links h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:1px;background:var(--gold)}
.foot-links a{display:block;font-size:13px;color:var(--ink-3);margin-bottom:12px;transition:.3s}
.foot-links a:hover{color:var(--gold-2);padding-left:5px}
/* 友情链接两列 */
.foot-friend{grid-column:span 1}
.friend-cols{display:grid;grid-template-columns:1fr 1fr;gap:0 26px}
.friend-cols a{display:block;font-size:12.5px;color:var(--ink-3);margin-bottom:11px;transition:.3s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.friend-cols a:hover{color:var(--gold-2);padding-left:4px}
.foot-qr{text-align:center}
.qr-box{
  width:110px;height:110px;border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--ink-3);margin-bottom:12px;background:rgba(255,255,255,.02);
}
.foot-qr span{font-size:12px;color:var(--ink-3)}
.foot-bottom{border-top:1px solid var(--line-2);padding:22px 0}
.fb-inner{display:flex;justify-content:space-between;font-size:12.5px;color:var(--ink-3)}

/* 隐蔽的后台入口：页脚版权行的 © 符号，平时与普通文字无异 */
.admin-entry{
  color:inherit;cursor:pointer;text-decoration:none;transition:color .5s;
  -webkit-tap-highlight-color:transparent;
}
.admin-entry:hover{color:var(--gold-3)}

/* ================= 滚动出现动画 ================= */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ================= 响应式 ================= */
@media(max-width:1100px){
  .menu,.nav-phone{display:none}
  .burger{display:block;margin-left:auto;z-index:60}

  /* 展开后的移动端菜单 */
  .nav.nav-open{background:rgba(10,10,11,.98);backdrop-filter:blur(14px);
    border-bottom-color:var(--line)}
  .menu.menu-open{
    display:flex !important;flex-direction:column;gap:0;
    position:fixed;top:78px;left:0;right:0;max-height:calc(100dvh - 78px);
    overflow-y:auto;padding:8px 22px 22px;
    background:rgba(10,10,11,.99);border-bottom:1px solid var(--line);
    backdrop-filter:blur(14px);margin-left:0;
  }
  .menu.menu-open a{
    padding:16px 0;font-size:16px;border-bottom:1px solid var(--line-2);
    color:var(--ink);
  }
  .menu.menu-open a:last-child{border-bottom:0}
  .menu.menu-open a::after{display:none}
  .menu.menu-open a.active{color:var(--gold-2)}

  /* 汉堡按钮变叉 */
  .burger.is-open i:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .burger.is-open i:nth-child(2){opacity:0}
  .burger.is-open i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .grid4{grid-template-columns:1fr 1fr}
  .stats-row{grid-template-columns:1fr 1fr}
  .stat:nth-child(3)::before{display:none}
  .case-grid{grid-template-columns:1fr 1fr}
  .case-lg{grid-column:span 2}
  .tech-grid{grid-template-columns:1fr}
  .news-wrap{grid-template-columns:1fr;gap:44px}
  .steps{grid-template-columns:repeat(3,1fr)}
  .step{border-right:1px solid var(--line-2);border-bottom:0}
  .step::after{display:none}
  .contact-wrap{grid-template-columns:1fr;gap:44px}
  .foot-wrap{grid-template-columns:1fr 1fr;gap:36px}
  .foot-friend{grid-column:span 2}
}
@media(max-width:640px){
  .wrap{padding:0 20px}
  .sec{padding:64px 0}
  .sec-head{margin-bottom:44px}

  /* 首屏 */
  .hero-content{padding:104px 20px 88px}
  .hero-tag{font-size:11.5px;letter-spacing:1px;padding:7px 15px;margin-bottom:24px}
  .hero-title .line1{font-size:13px;letter-spacing:2px;margin-bottom:14px}
  .hero-title .line2{font-size:30px;letter-spacing:0}
  .hero-sub{font-size:14px;letter-spacing:.5px;line-height:1.7}
  .hero-desc{font-size:13.5px;line-height:1.9;margin-bottom:36px}
  .hero-entries{flex-direction:column;gap:10px}
  .entry{min-width:0;width:100%;padding:15px 18px;gap:12px}
  .entry-main{font-size:15px}
  .entry-main small{font-size:11px}
  .hero-dots{right:auto;left:50%;transform:translateX(-50%);bottom:74px}
  .hero-scroll{display:none}
  .nav-inner{height:64px;padding:0 20px;gap:0}
  .menu.menu-open{top:64px;max-height:calc(100dvh - 64px)}
  .logo-text{font-size:20px}

  /* 数据条：两列，避免过长 */
  .grid4,.stats-row,.cert-row,.case-grid,.steps{grid-template-columns:1fr}
  .stats-row{grid-template-columns:1fr 1fr}
  .stat{padding:30px 12px}
  .stat+.stat::before{display:none}
  .stat:nth-child(odd){}
  .stat-num{font-size:30px}
  .stat-label{font-size:13px;margin-top:10px}
  .stat-note{font-size:11px}

  /* 卡片与案例 */
  .card-4{padding:28px 22px}
  .cert{flex-direction:column;align-items:flex-start;gap:12px;padding:20px}
  .case-lg{grid-column:span 1}
  .case-lg .case-img,.case:not(.case-lg) .case-img{height:240px}
  .case-meta{padding:22px 20px}
  .case-meta h3{font-size:17px}
  .case-info{gap:14px;font-size:12px}

  /* 图纸对照 */
  .plan-compare{padding:26px 18px}
  .pc-head h3{font-size:17px}
  .pc-head p{font-size:12.5px}
  .pc-body{grid-template-columns:1fr;gap:14px}
  .pc-item img{height:210px}
  .pc-arrow{transform:rotate(90deg);text-align:center;font-size:20px}
  .pc-item figcaption{padding:13px 15px;font-size:12px}

  /* 技术中心 */
  .tech-main .tech-img{height:230px}
  .play{width:58px;height:58px}
  .play i{border-left-width:12px;border-top-width:8px;border-bottom-width:8px}

  /* 资讯与播报 */
  .news-wrap{gap:34px}
  .col-head h2{font-size:20px}
  .news-list li{gap:14px;padding:20px 0}
  .news-date{width:52px;padding-right:12px}
  .news-date b{font-size:24px}
  .news-body h3{font-size:15px}
  .report-list li{gap:14px;padding:18px 0}
  .report-img{width:96px;height:72px}
  .report-body h3{font-size:14.5px}

  /* 流程 */
  .step{padding:26px 18px;border-right:1px solid var(--line-2)}
  .step-no{font-size:28px;margin-bottom:12px}

  /* 联系与页脚 */
  .contact{padding:64px 0}
  .contact-wrap{gap:32px}
  .contact-left h2{font-size:26px}
  .contact-left p{font-size:14px;margin-bottom:28px}
  .btn-gold{padding:15px 34px;font-size:14px;letter-spacing:1px}
  .contact-right{grid-template-columns:1fr}
  .ci{padding:20px}
  .ci b{font-size:15px}
  .foot-wrap,.foot-qr{grid-template-columns:1fr;text-align:left}
  .foot-wrap{gap:30px;padding-bottom:34px}
  .foot-logo{font-size:24px}
  .friend-cols{grid-template-columns:1fr 1fr;gap:0 18px}
  .friend-cols a{font-size:12px}
  .qr-box{width:96px;height:96px}
  .fb-inner{flex-direction:column;gap:6px;font-size:11.5px}
}

/* 超小屏（≤380px）再收一档 */
@media(max-width:380px){
  .hero-title .line2{font-size:26px}
  .stats-row{grid-template-columns:1fr}
  .stat-num{font-size:27px}
}

/* =========================================================
   PWA：添加到主屏幕提示条
   ========================================================= */
.pwa-bar[hidden]{display:none !important}
.pwa-bar{
  position:fixed;left:12px;right:12px;bottom:12px;z-index:120;
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;
  background:linear-gradient(160deg,var(--black-4),var(--black-3));
  border:1px solid var(--line);border-radius:12px;
  box-shadow:0 14px 44px rgba(0,0,0,.6);
  backdrop-filter:blur(12px);
  animation:pwaIn .45s var(--ease) both;
}
@keyframes pwaIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.pwa-icon{width:40px;height:40px;border-radius:9px;flex-shrink:0}
.pwa-text{flex:1;min-width:0;line-height:1.35}
.pwa-text b{display:block;font-size:14.5px;color:#fff;letter-spacing:.3px}
.pwa-text span{display:block;font-size:11.5px;color:var(--ink-3);margin-top:2px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pwa-btn{
  flex-shrink:0;padding:9px 18px;border:0;border-radius:6px;cursor:pointer;
  background:linear-gradient(100deg,var(--gold),var(--gold-2));color:#1a1408;
  font-size:13.5px;font-weight:700;letter-spacing:.5px;
}
.pwa-btn:active{transform:scale(.96)}
.pwa-close{
  flex-shrink:0;width:26px;height:26px;padding:0;border:0;border-radius:50%;
  background:rgba(255,255,255,.06);color:var(--ink-3);font-size:12px;cursor:pointer;
  line-height:1;
}
.pwa-close:hover{color:var(--ink);background:rgba(255,255,255,.12)}

/* 大屏不显示（PWA 主要用于手机） */
@media(min-width:821px){ .pwa-bar{display:none !important} }

/* 全面屏手机底部安全区 */
@supports(padding:max(0px)){
  .pwa-bar{bottom:max(12px, env(safe-area-inset-bottom))}
}

/* =========================================================
   子页面通用样式（栏目页 / 详情页）
   ========================================================= */

/* ---------- 页面头部 ---------- */
.page-head{
  position:relative;padding:150px 0 70px;overflow:hidden;
  background:linear-gradient(180deg,var(--black-2),var(--black));
  border-bottom:1px solid var(--line);
}
.page-head::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(201,169,97,.10),transparent 68%);pointer-events:none;
}
.page-head .crumb{font-size:12px;letter-spacing:1.5px;color:var(--ink-3);margin-bottom:16px}
.page-head .crumb a:hover{color:var(--gold)}
.page-head .crumb i{margin:0 8px;font-style:normal;color:var(--gold-3)}
.page-head h1{font-size:40px;font-weight:700;letter-spacing:1px;line-height:1.3}
.page-head p{margin-top:14px;font-size:15px;color:var(--ink-2);max-width:640px;line-height:1.9}

/* ---------- 通用区块 ---------- */
.blk{padding:76px 0}
.blk.tight{padding:52px 0}
.blk-head{margin-bottom:40px}
.blk-head .en{font-size:12px;letter-spacing:4px;color:var(--gold-3);margin-bottom:10px}
.blk-head h2{font-size:30px;font-weight:700;letter-spacing:.5px}
.blk-head p{margin-top:12px;font-size:14.5px;color:var(--ink-2);max-width:620px;line-height:1.85}

/* ---------- 筛选栏 ---------- */
.filters{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:18px 0 26px;border-bottom:1px solid var(--line-2);margin-bottom:34px;
}
.filters .fl{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.filters .fl>span{font-size:12.5px;color:var(--ink-3);letter-spacing:1px;margin-right:4px}
.chip{
  padding:6px 16px;font-size:13px;color:var(--ink-2);
  border:1px solid var(--line-2);border-radius:30px;cursor:pointer;
  transition:.3s var(--ease);background:none;font-family:inherit;
}
.chip:hover{color:var(--gold);border-color:var(--line)}
.chip.on{background:linear-gradient(135deg,var(--gold),var(--gold-3));color:#1a1408;border-color:transparent;font-weight:600}
.filter-bar{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:12px}
.filter-count{font-size:13px;color:var(--ink-3)}
.filter-count b{color:var(--gold);font-size:16px;margin:0 4px}

/* ---------- 案例卡片网格 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  background:var(--black-3);border:1px solid var(--line-2);overflow:hidden;
  transition:.4s var(--ease);cursor:pointer;display:block;
}
.case-card:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:0 18px 44px rgba(0,0,0,.5)}
.case-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--black-4)}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:.6s var(--ease)}
.case-card:hover .case-thumb img{transform:scale(1.06)}
.case-thumb .ct-tags{position:absolute;left:0;top:12px;display:flex;gap:6px;flex-wrap:wrap}
.case-thumb .ct-tags span{
  background:rgba(10,10,11,.82);color:var(--gold-2);font-size:11px;
  padding:3px 10px;border-left:2px solid var(--gold);letter-spacing:.5px;
}
.case-body{padding:20px 22px 24px}
.case-body h3{font-size:17px;font-weight:600;margin-bottom:6px;letter-spacing:.3px}
.case-body .loc{font-size:12.5px;color:var(--ink-3);margin-bottom:14px}
.case-meta{display:flex;gap:22px;padding-top:14px;border-top:1px solid var(--line-2)}
.case-meta div{flex:1}
.case-meta .k{font-size:11px;color:var(--ink-3);letter-spacing:.5px;margin-bottom:3px}
.case-meta .v{font-size:15px;color:var(--gold-2);font-weight:600}
.case-meta .v small{font-size:11px;color:var(--ink-3);font-weight:400;margin-left:2px}
.case-card:hover .case-body h3{color:var(--gold-2)}

/* ---------- 空状态 ---------- */
.empty-state{text-align:center;padding:80px 20px;color:var(--ink-3)}
.empty-state .ic{font-size:40px;color:var(--gold-3);opacity:.5;margin-bottom:16px}
.empty-state p{font-size:14px;line-height:1.9}

/* ---------- 详情页 ---------- */
.detail-hero{position:relative;padding:150px 0 60px;background:linear-gradient(180deg,var(--black-2),var(--black))}
.detail-hero h1{font-size:36px;font-weight:700;letter-spacing:.5px;margin-bottom:14px}
.detail-hero .tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.detail-hero .tags span{
  font-size:12px;color:var(--gold-2);border:1px solid var(--line);
  padding:4px 12px;border-radius:30px;
}
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-2);margin-top:32px}
.spec-grid div{background:var(--black-2);padding:22px 24px}
.spec-grid .k{font-size:11.5px;color:var(--ink-3);letter-spacing:1px;margin-bottom:8px}
.spec-grid .v{font-size:22px;color:var(--gold-2);font-weight:700}
.spec-grid .v small{font-size:12px;color:var(--ink-2);font-weight:400;margin-left:3px}

/* 图纸 × 实拍对照 */
.compare2{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:34px}
.compare2 figure{background:var(--black-3);border:1px solid var(--line-2)}
.compare2 figure .im{aspect-ratio:4/3;overflow:hidden;background:var(--black-4)}
.compare2 figure img{width:100%;height:100%;object-fit:cover}
.compare2 figcaption{padding:16px 20px}
.compare2 figcaption b{display:block;font-size:14px;color:var(--gold-2);margin-bottom:4px}
.compare2 figcaption span{font-size:12.5px;color:var(--ink-3)}

/* 亮点列表 */
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:26px}
.feature-list div{
  display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--ink-2);
  padding:14px 18px;background:var(--black-3);border-left:2px solid var(--gold);
}
.feature-list div::before{content:"◆";color:var(--gold);font-size:10px;line-height:1.9}

/* 画廊 */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}
.gallery figure{aspect-ratio:4/3;overflow:hidden;background:var(--black-4);cursor:zoom-in}
.gallery img{width:100%;height:100%;object-fit:cover;transition:.5s var(--ease)}
.gallery figure:hover img{transform:scale(1.05)}

/* ---------- 列表页（资讯/播报） ---------- */
.news-list{margin-top:8px}
.news-item{
  display:grid;grid-template-columns:96px 1fr;gap:28px;
  padding:28px 0;border-bottom:1px solid var(--line-2);transition:.3s var(--ease);
}
.news-item:hover{padding-left:10px;border-bottom-color:var(--line)}
.news-date{text-align:center;padding-top:4px}
.news-date b{display:block;font-size:34px;font-weight:700;color:var(--gold-2);line-height:1}
.news-date span{font-size:12px;color:var(--ink-3);letter-spacing:1px}
.news-main h3{font-size:18px;font-weight:600;line-height:1.6;margin-bottom:10px;transition:.3s}
.news-item:hover .news-main h3,
.news-item:hover .news-body h3{color:var(--gold-2)}
.news-main p{font-size:13.5px;color:var(--ink-2);line-height:1.85;margin-bottom:10px}
.news-src{font-size:12px;color:var(--gold-3);letter-spacing:.5px}
.news-src a{color:var(--gold-3);text-decoration:underline;text-underline-offset:3px}
.news-src a:hover{color:var(--gold)}

/* 播报卡片 */
.report-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:8px}
.report-card{background:var(--black-3);border:1px solid var(--line-2);overflow:hidden;transition:.4s var(--ease);display:block}
.report-card:hover{border-color:var(--line);transform:translateY(-3px)}
.report-card .rc-im{aspect-ratio:16/10;overflow:hidden;background:var(--black-4)}
.report-card .rc-im img{width:100%;height:100%;object-fit:cover;transition:.6s var(--ease)}
.report-card:hover .rc-im img{transform:scale(1.05)}
.report-card .rc-body{padding:20px 22px 24px}
.report-card .rc-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.report-card .rc-proj{font-size:12.5px;color:var(--gold-2);letter-spacing:.5px}
.report-card .rc-date{font-size:12px;color:var(--ink-3)}
.report-card h3{font-size:16px;font-weight:600;line-height:1.65;margin-bottom:8px}
.report-card p{font-size:13px;color:var(--ink-2);line-height:1.8}

/* ---------- 技术中心 ---------- */
.tech-hero-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:18px}
.tech-hero-grid .big{grid-row:span 2;position:relative;overflow:hidden;background:var(--black-4)}
.tech-hero-grid .big img{width:100%;height:100%;object-fit:cover;min-height:340px}
.tech-hero-grid .sm{position:relative;overflow:hidden;background:var(--black-4);min-height:160px}
.tech-hero-grid .sm img{width:100%;height:100%;object-fit:cover}
.tech-cap{position:absolute;left:0;bottom:0;right:0;padding:26px 24px 20px;
  background:linear-gradient(0deg,rgba(10,10,11,.94),transparent)}
.tech-cap b{font-size:16px;font-weight:600;display:block}
.tech-cap span{font-size:12.5px;color:var(--ink-2)}

/* 视频卡 */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.video-card{background:var(--black-3);border:1px solid var(--line-2);overflow:hidden;cursor:pointer;transition:.4s var(--ease)}
.video-card:hover{border-color:var(--line);transform:translateY(-3px)}
.video-card .vc-im{position:relative;aspect-ratio:16/9;background:var(--black-4);overflow:hidden}
.video-card .vc-im img{width:100%;height:100%;object-fit:cover}
.video-card .vc-play{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(10,10,11,.32);transition:.35s;
}
.video-card:hover .vc-play{background:rgba(10,10,11,.14)}
.video-card .vc-play i{
  width:52px;height:52px;border-radius:50%;border:1.5px solid var(--gold);
  display:flex;align-items:center;justify-content:center;font-style:normal;
  color:var(--gold);font-size:16px;padding-left:3px;background:rgba(10,10,11,.5);
}
.video-card .vc-body{padding:16px 18px 20px}
.video-card .vc-body b{font-size:14.5px;font-weight:600;line-height:1.6;display:block;margin-bottom:5px}
.video-card .vc-body span{font-size:12px;color:var(--ink-3)}

/* 视频弹窗 */
.vmodal{position:fixed;inset:0;background:rgba(5,5,6,.94);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.vmodal.show{display:flex}
.vmodal .vm-box{width:min(1000px,100%);background:var(--black-2);border:1px solid var(--line)}
.vmodal .vm-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line-2)}
.vmodal .vm-head b{font-size:14px}
.vmodal .vm-close{background:none;border:0;color:var(--ink-2);font-size:22px;cursor:pointer;line-height:1;padding:0 6px}
.vmodal .vm-close:hover{color:var(--gold)}
.vmodal .vm-body{aspect-ratio:16/9;background:#000}
.vmodal .vm-body iframe,.vmodal .vm-body video{width:100%;height:100%;border:0;display:block}

/* ---------- 联系我们（子页） ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:30px}
.contact-box{background:var(--black-3);border:1px solid var(--line-2);padding:30px 32px}
.contact-box h3{font-size:16px;margin-bottom:20px;color:var(--gold-2)}
.contact-box dl{display:grid;grid-template-columns:auto 1fr;gap:14px 20px;font-size:13.5px}
.contact-box dt{color:var(--ink-3)}
.contact-box dd{color:var(--ink)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:12.5px;color:var(--ink-3);margin-bottom:7px;letter-spacing:.5px}
.form-row input,.form-row textarea,.form-row select{
  width:100%;background:var(--black-4);border:1px solid var(--line-2);color:var(--ink);
  padding:11px 14px;font-size:14px;font-family:inherit;outline:none;transition:.3s;
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{border-color:var(--gold)}
.form-row textarea{resize:vertical;min-height:92px}
.btn-gold{
  display:inline-block;padding:12px 34px;font-size:14px;font-weight:600;letter-spacing:1px;
  background:linear-gradient(135deg,var(--gold),var(--gold-3));color:#1a1408;border:0;
  cursor:pointer;font-family:inherit;transition:.35s var(--ease);
}
.btn-gold:hover{filter:brightness(1.12);transform:translateY(-2px)}
.form-tip{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.7}

/* 地图占位 */
.map-box{margin-top:26px;aspect-ratio:21/9;background:var(--black-3);border:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:13px;letter-spacing:1px}

/* 分页 */
.pager{display:flex;justify-content:center;gap:8px;margin-top:44px}
.pager button{
  min-width:38px;height:38px;padding:0 12px;background:none;border:1px solid var(--line-2);
  color:var(--ink-2);font-size:13px;cursor:pointer;font-family:inherit;transition:.3s;
}
.pager button:hover:not(:disabled){border-color:var(--line);color:var(--gold)}
.pager button.on{background:var(--gold);border-color:var(--gold);color:#1a1408;font-weight:600}
.pager button:disabled{opacity:.32;cursor:not-allowed}

/* ---------- 子页面响应式 ---------- */
@media(max-width:1100px){
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .report-grid{grid-template-columns:1fr}
  .tech-hero-grid{grid-template-columns:1fr}
  .tech-hero-grid .big{grid-row:auto}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  .page-head{padding:120px 0 48px}
  .page-head h1{font-size:27px}
  .blk{padding:52px 0}
  .case-grid{grid-template-columns:1fr}
  .video-grid{grid-template-columns:1fr}
  .compare2{grid-template-columns:1fr}
  .feature-list{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .news-item{grid-template-columns:64px 1fr;gap:16px}
  .news-date b{font-size:26px}
  .spec-grid{grid-template-columns:1fr 1fr}
  .spec-grid div{padding:16px}
  .spec-grid .v{font-size:18px}
  .detail-hero{padding:118px 0 44px}
  .detail-hero h1{font-size:25px}
  .filters{padding:14px 0 18px}
  .chip{padding:5px 13px;font-size:12.5px}
}

/* ================= 在线留言 ================= */
.msg-wrap{margin-top:56px}
.msg-box{
  background:rgba(23,23,26,.86);border:1px solid var(--line);
  padding:40px 44px 34px;backdrop-filter:blur(6px);
}
.msg-head{margin-bottom:26px}
.msg-head h3{font-size:22px;font-weight:700;margin:8px 0 10px;letter-spacing:.5px}
.msg-head p{font-size:13.5px;color:var(--ink-2);line-height:1.8;max-width:560px}
.msg-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}
.msg-form .form-row label{font-size:12.5px;color:var(--ink-3)}
.msg-form input,.msg-form select,.msg-form textarea{
  width:100%;background:var(--black);border:1px solid var(--line-2);
  color:var(--ink);padding:11px 14px;font-size:14px;font-family:inherit;
  transition:.25s var(--ease);
}
.msg-form input:focus,.msg-form select:focus,.msg-form textarea:focus{
  outline:none;border-color:var(--gold);background:rgba(201,169,97,.04);
}
.msg-form textarea{resize:vertical;min-height:88px;line-height:1.7}
.cap-row{display:flex;gap:10px;align-items:stretch}
.cap-row input{flex:1;min-width:0;letter-spacing:3px;text-transform:uppercase}
.cap-img{
  width:132px;height:44px;flex-shrink:0;cursor:pointer;border:1px solid var(--line-2);
  background:#141416;display:block;
}
.msg-submit-row{display:flex;align-items:flex-end;justify-content:flex-end}
.msg-submit-row .btn-gold{width:100%;text-align:center;padding:12px 20px;cursor:pointer;border:0}
.msg-form button:disabled{opacity:.6;cursor:not-allowed}
.form-tip.err{color:#e0725f}
.form-tip.ok{color:var(--gold-2)}

@media(max-width:820px){
  .msg-box{padding:28px 22px 26px}
  .msg-grid{grid-template-columns:1fr}
  .msg-submit-row{justify-content:stretch;margin-top:4px}
  .cap-img{width:110px}
}

/* 电话点击拨号 */
.nav-phone{text-decoration:none;color:inherit;transition:.25s var(--ease)}
.nav-phone:hover b{color:var(--gold-2)}
.tel-inline{color:inherit;text-decoration:none}
.tel-inline:hover b{color:var(--gold-2)}
.ci-tel{text-decoration:none}
.ci-tel b{transition:.25s var(--ease)}
.ci-tel:hover b{color:var(--gold-2)}
@media(max-width:820px){
  .ci-tel b{font-size:19px}
}

/* ============================================================
   资讯 / 播报列表 · 最终覆盖规则（flexbox + !important）
   说明：首页与子页使用两套不同结构，这里统一用 flex 布局，
         !important 用于覆盖前面多组互相冲突的旧规则。
   ============================================================ */

/* 列表项容器：首页 li / 子页 a.news-item 都统一为 flex */
.news-list > li,
.news-item{
  display:flex !important;
  flex-wrap:nowrap !important;
  gap:24px !important;
  align-items:flex-start !important;
  padding:26px 0 !important;
  border-bottom:1px solid var(--line-2) !important;
  transition:padding-left .3s var(--ease) !important;
}
.news-list > li:hover,
.news-item:hover{padding-left:8px !important}

/* 日期列：固定宽度，不参与收缩 */
.news-list > li > .news-date,
.news-item > .news-date,
.news-date{
  flex:0 0 76px !important;
  width:76px !important;
  min-width:76px !important;
  max-width:76px !important;
  text-align:center !important;
  border-right:1px solid var(--line-2) !important;
  padding:2px 14px 0 0 !important;
}
.news-date > b,
.news-date b{
  display:block !important;
  font-size:30px !important;font-weight:800 !important;
  color:var(--gold-2) !important;line-height:1 !important;
  font-family:"DIN Alternate",sans-serif !important;
}
.news-date > span,
.news-date span{
  display:block !important;font-size:11.5px !important;
  color:var(--ink-3) !important;letter-spacing:1px !important;margin-top:5px !important;
}

/* 内容列：占满剩余宽度，允许收缩（min-width:0 是关键） */
.news-list > li > .news-body,
.news-item > .news-main,
.news-item > .news-body,
.news-body,
.news-main{
  flex:1 1 auto !important;
  min-width:0 !important;
  width:auto !important;
  max-width:none !important;
}

/* 标题 */
.news-body h3,
.news-main h3{
  display:block !important;
  font-size:18px !important;font-weight:600 !important;
  color:var(--ink) !important;line-height:1.55 !important;
  margin:0 0 10px !important;
  width:auto !important;max-width:none !important;
  white-space:normal !important;
  word-break:break-word !important;
  overflow-wrap:anywhere !important;
  transition:color .3s var(--ease) !important;
}
.news-body a:hover h3,
.news-item:hover .news-main h3,
.news-item:hover .news-body h3{color:var(--gold-2) !important}

/* 摘要：显示完整句子，不做行数截断 */
.news-body p,
.news-main p{
  display:block !important;
  font-size:13.5px !important;color:var(--ink-2) !important;
  line-height:1.8 !important;margin:0 0 10px !important;
  width:auto !important;max-width:none !important;
  -webkit-line-clamp:none !important;
  -webkit-box-orient:initial !important;
  overflow:visible !important;
  white-space:normal !important;
  word-break:break-word !important;
  overflow-wrap:anywhere !important;
}

/* 来源行 */
.news-src,
.news-body .news-src,
.news-main .news-src{
  display:block !important;
  margin-top:10px !important;font-size:12px !important;
  color:var(--gold-3) !important;letter-spacing:.5px !important;
  word-break:break-all !important;
}
.news-src a{color:var(--gold-3) !important;text-decoration:underline;text-underline-offset:3px}
.news-src a:hover{color:var(--gold) !important}

/* 页脚二维码 / 导航 LOGO */
.qr-box img{width:100%;height:100%;object-fit:contain;display:block}
.logo-img{height:34px;width:auto;display:block}

/* ---------- 移动端 ---------- */
@media(max-width:640px){
  .news-list > li,
  .news-item{gap:14px !important;padding:20px 0 !important}
  .news-list > li > .news-date,
  .news-item > .news-date,
  .news-date{
    flex:0 0 54px !important;width:54px !important;
    min-width:54px !important;max-width:54px !important;padding-right:10px !important;
  }
  .news-date b{font-size:23px !important}
  .news-date span{font-size:10.5px !important}
  .news-body h3,.news-main h3{font-size:15.5px !important}
  .news-body p,.news-main p{font-size:13px !important;line-height:1.75 !important}
}

/* 首页：技术中心 —— 视频讲解卡片 */
.home-vids{display:grid;gap:16px}
.home-vid{display:block;background:var(--black-3);border:1px solid var(--line-2);overflow:hidden;transition:.4s var(--ease)}
.home-vid:hover{border-color:var(--line);transform:translateY(-3px)}
.home-vid .hv-im{position:relative;aspect-ratio:16/9;background:var(--black-4);background-size:cover;background-position:center}
.home-vid .hv-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(10,10,11,.32);color:var(--gold);font-size:20px;transition:.35s}
.home-vid:hover .hv-play{background:rgba(10,10,11,.14)}
.home-vid .hv-body{padding:12px 15px 14px}
.home-vid .hv-body b{font-size:14px;font-weight:600;line-height:1.55;display:block;margin-bottom:4px;color:var(--ink)}
.home-vid .hv-body span{font-size:11.5px;color:var(--ink-3)}
.home-empty-line{color:var(--ink-3);font-size:13px;padding:22px 0;list-style:none}

/* ============ FAQ 常见问题（AI 搜索优化） ============ */
.faq{background:var(--black)}
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.02);overflow:hidden;transition:border-color .3s var(--ease),background .3s var(--ease)}
.faq-item[open]{border-color:rgba(201,169,97,.42);background:rgba(201,169,97,.045)}
.faq-item summary{cursor:pointer;list-style:none;padding:20px 52px 20px 24px;position:relative;font-size:16.5px;font-weight:600;color:var(--ink);letter-spacing:.3px;transition:color .25s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:24px;font-weight:300;color:var(--gold);line-height:1;transition:transform .3s var(--ease)}
.faq-item[open] summary::after{content:'–'}
.faq-item summary:hover{color:var(--gold)}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.overseas{max-width:900px;margin:46px auto 0;padding:34px 38px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(120deg,rgba(201,169,97,.10),rgba(201,169,97,.02));text-align:center}
.overseas-head{font-size:20px;font-weight:700;color:var(--gold);letter-spacing:1px;margin-bottom:14px}
.overseas p{font-size:15px;line-height:1.9;color:var(--ink-2);max-width:720px;margin:0 auto 22px}
@media (max-width:640px){
  .faq-item summary{font-size:15px;padding:17px 46px 17px 18px}
  .faq-a{padding:0 18px 18px;font-size:14px}
  .overseas{padding:26px 20px}
}