/* ==========================================================================
   sxspps.cn — site.css
   深色电影感主题 / 可切换浅色 / 无外部依赖
   ========================================================================== */

/* ---------- 变量 ---------- */
:root{
  --bg:#0b0b0d;
  --bg-alt:#101014;
  --surface:#15151a;
  --surface-2:#1c1c22;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#edeae4;
  --text-dim:#a8a49c;
  --text-mute:#6f6c66;
  --gold:#c9a227;
  --gold-soft:#e3c463;
  --gold-dim:rgba(201,162,39,.14);
  --shadow:0 24px 60px -24px rgba(0,0,0,.85);
  --r:2px;
  --max:1240px;
  --gut:24px;
  --nav-h:76px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
[data-theme="light"]{
  --bg:#faf9f6;
  --bg-alt:#f2f0eb;
  --surface:#ffffff;
  --surface-2:#f6f4ef;
  --line:rgba(20,18,14,.10);
  --line-strong:rgba(20,18,14,.20);
  --text:#1a1814;
  --text-dim:#57534c;
  --text-mute:#8b8680;
  --gold:#9a7a16;
  --gold-soft:#7d6210;
  --gold-dim:rgba(154,122,22,.10);
  --shadow:0 20px 50px -28px rgba(30,26,18,.35);
}

/* ---------- 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC",
              "Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  transition:background .35s var(--ease),color .35s var(--ease);
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--gold)}
h1,h2,h3,h4,p,ul,dl,dd,figure{margin:0;padding:0}
ul{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--gold);color:#0b0b0d}

.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 30px;border-radius:var(--r);
  font-size:15px;letter-spacing:.06em;white-space:nowrap;
  border:1px solid transparent;transition:all .3s var(--ease);
}
.btn--gold{background:var(--gold);color:#0b0b0d !important;font-weight:600}
.btn--gold:hover{background:var(--gold-soft);color:#0b0b0d;transform:translateY(-2px)}
.btn--ghost{border-color:var(--line-strong);color:var(--text)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn--sm{height:42px;padding:0 20px;font-size:14px}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold);opacity:.8}

.sec{padding:104px 0;position:relative}
.sec--alt{background:var(--bg-alt)}
.sec-head{max-width:760px;margin-bottom:56px}
.sec-head h2{
  font-size:clamp(26px,2.6vw,38px);line-height:1.3;font-weight:600;
  letter-spacing:.01em;margin:18px 0 14px;
}
.sec-head p{color:var(--text-dim);font-size:15.5px;max-width:60ch}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head--center .eyebrow{justify-content:center}

/* 滚动显现 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .hero__poster,.hero__glow{animation:none}
  .hero__poster{transform:scale(1.03)}
  .hero__glow{opacity:.75}
}

/* ==========================================================================
   顶部
   ========================================================================== */
.hdr{
  position:fixed;inset:0 0 auto;z-index:90;
  background:linear-gradient(180deg,rgba(11,11,13,.72),rgba(11,11,13,0));
  transition:background .35s var(--ease),border-color .35s var(--ease),height .35s var(--ease);
  border-bottom:1px solid transparent;
}
[data-theme="light"] .hdr{background:linear-gradient(180deg,rgba(250,249,246,.92),rgba(250,249,246,0))}
.hdr.is-stuck{
  background:rgba(11,11,13,.94);border-bottom-color:var(--line);
  -webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);
}
[data-theme="light"] .hdr.is-stuck{background:rgba(250,249,246,.96)}
.hdr__in{
  height:var(--nav-h);display:flex;align-items:center;gap:24px;
  width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--gut);
}

/* 品牌 */
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  width:34px;height:34px;border:1px solid var(--gold);border-radius:50%;
  display:grid;place-items:center;flex:0 0 auto;
}
.brand__mark svg{width:16px;height:16px;stroke:var(--gold);fill:none;stroke-width:1.4}
.brand__txt{display:flex;flex-direction:column;line-height:1.15}
.brand__cn{font-size:19px;letter-spacing:.16em;font-weight:600}
.brand__en{font-size:9px;letter-spacing:.28em;color:var(--text-mute);margin-top:3px}

/* 导航 */
.nav{margin-left:auto}
.nav ul{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav a{
  display:block;padding:10px 11px;font-size:14.5px;color:var(--text-dim);
  position:relative;letter-spacing:.02em;white-space:nowrap;
}
.nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav a:hover,.nav li.is-cur>a{color:var(--text)}
.nav a:hover::after,.nav li.is-cur>a::after{transform:scaleX(1)}

/* 二级 */
.nav li{position:relative}
.nav .sub{
  position:absolute;top:100%;left:0;min-width:186px;
  background:var(--surface);border:1px solid var(--line);
  padding:8px;display:block;opacity:0;visibility:hidden;
  transform:translateY(8px);transition:all .28s var(--ease);
  box-shadow:var(--shadow);
}
.nav li:hover .sub{opacity:1;visibility:visible;transform:none}
.nav .sub a{padding:9px 14px;font-size:14px}
.nav .sub a::after{display:none}

/* 头部动作区 */
.hdr__act{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.hdr__tel{display:flex;align-items:center;gap:8px;font-size:15px;letter-spacing:.04em}
.hdr__tel svg{width:15px;height:15px;stroke:var(--gold);fill:none;stroke-width:1.6}
.hdr__tel b{font-weight:600;color:var(--gold);letter-spacing:.06em}
.icon-btn{
  width:38px;height:38px;display:grid;place-items:center;border-radius:50%;
  border:1px solid var(--line);transition:all .25s var(--ease);
}
.icon-btn:hover{border-color:var(--gold);color:var(--gold)}
.icon-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5}
.burger{display:none}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:flex-end;color:#fff;
  overflow:hidden;isolation:isolate;
}
.hero__media{position:absolute;inset:0;z-index:-2;overflow:hidden;background:#07070a}
.hero__media picture{display:block;width:100%;height:100%}
.hero__media video,.hero__media img{width:100%;height:100%;object-fit:cover;object-position:50% 46%}
/* 底图已在出图阶段调好暮色，这里只做极轻的质感统一，不再二次压暗 */
.hero__poster{
  transform:scale(1.05);
  animation:heroDrift 38s ease-in-out infinite alternate;
  filter:saturate(1.02) contrast(1.05) brightness(1.02);
}
@keyframes heroDrift{
  from{transform:scale(1.05) translate3d(0,0,0)}
  to{transform:scale(1.115) translate3d(-1.2%,-.9%,0)}
}
/* 落日光晕：画面里已有太阳，这里只做极轻的呼吸，避免双光源发假 */
.hero__glow{
  position:absolute;inset:-10%;pointer-events:none;
  background:
    radial-gradient(30% 36% at 41% 33%,rgba(255,186,102,.26),transparent 68%),
    radial-gradient(46% 30% at 30% 46%,rgba(226,150,62,.14),transparent 74%);
  mix-blend-mode:screen;filter:blur(30px);
  animation:heroGlow 22s ease-in-out infinite alternate;
}
@keyframes heroGlow{
  from{opacity:.62;transform:translate3d(0,0,0) scale(1)}
  to{opacity:.95;transform:translate3d(-1.2%,.8%,0) scale(1.05)}
}
/* 细颗粒，压住渐变带的色阶断层 */
.hero__grain{
  position:absolute;inset:0;pointer-events:none;opacity:.10;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='160' height='160' filter='url(%23n)' opacity='.55'/></svg>");
  background-size:160px 160px;
}
/* 遮罩：上淡下浓保证标题可读，横向左重右轻让右侧山景透气 */
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,
      rgba(9,9,12,.30) 0%,
      rgba(9,9,12,.06) 24%,
      rgba(9,9,12,0) 44%,
      rgba(9,9,12,.40) 66%,
      rgba(9,9,12,.84) 87%,
      var(--bg) 100%),
    linear-gradient(90deg,
      rgba(9,9,12,.68) 0%,
      rgba(9,9,12,.30) 30%,
      rgba(9,9,12,.05) 58%,
      rgba(9,9,12,.18) 100%);
}
/* 浅色主题下首屏仍是暗调电影感，底部渐隐必须收在深色上，
   否则会褪成白色、把幽灵按钮吃掉 */
[data-theme="light"] .hero__media::after{
  background:
    linear-gradient(180deg,
      rgba(9,9,12,.30) 0%,
      rgba(9,9,12,.06) 24%,
      rgba(9,9,12,0) 44%,
      rgba(9,9,12,.42) 66%,
      rgba(9,9,12,.86) 87%,
      rgba(11,11,13,.96) 100%),
    linear-gradient(90deg,
      rgba(9,9,12,.68) 0%,
      rgba(9,9,12,.30) 30%,
      rgba(9,9,12,.05) 58%,
      rgba(9,9,12,.18) 100%);
}
[data-theme="light"] .hero{color:#fff}
[data-theme="light"] .hero .eyebrow{color:#e3c463}
[data-theme="light"] .hero .hero__h1 em{color:#e3c463}
[data-theme="light"] .hero .hero__sub{color:#d6d2ca}
[data-theme="light"] .hero .btn--ghost{color:#fff;border-color:rgba(255,255,255,.30);background:rgba(9,9,12,.25)}
[data-theme="light"] .hero .btn--ghost:hover{border-color:#e3c463;color:#e3c463}
.hero__in{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--gut) 76px}.hero__h1{
  color:#fff;font-size:clamp(34px,5.2vw,68px);line-height:1.16;font-weight:600;
  letter-spacing:.01em;margin:26px 0 22px;max-width:16ch;
}
.hero__h1 em{font-style:normal;color:var(--gold-soft)}
.hero__sub{font-size:clamp(15px,1.3vw,18px);color:#cfcbc3;max-width:46ch;line-height:1.85}
.hero__cta{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap}
.hero__scroll{
  position:absolute;right:var(--gut);bottom:40px;display:flex;align-items:center;gap:12px;
  font-size:11px;letter-spacing:.24em;color:var(--text-dim);writing-mode:vertical-rl;
}
.hero__scroll::after{content:"";width:1px;height:56px;background:linear-gradient(var(--gold),transparent)}

/* Hero 下沿数据条 */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg);
}
.stats__i{padding:30px 8px 30px 26px;border-left:1px solid var(--line)}
.stats__i:first-child{border-left:0;padding-left:0}
.stats__n{font-size:clamp(26px,2.6vw,40px);font-weight:600;letter-spacing:.02em;line-height:1;color:var(--gold)}
.stats__n i{font-style:normal;font-size:.55em;margin-left:2px}
.stats__l{font-size:13px;color:var(--text-dim);margin-top:10px;letter-spacing:.06em}

/* ==========================================================================
   作品
   ========================================================================== */
.works{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.work{
  position:relative;display:block;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r);
  transition:border-color .35s var(--ease),transform .5s var(--ease);
}
.work:hover{border-color:var(--gold);transform:translateY(-4px)}
.work__ph{position:relative;aspect-ratio:16/9;overflow:hidden;display:block}
.work__ph img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 1.1s var(--ease),filter .5s var(--ease);
  filter:saturate(.92) contrast(1.02);
}
.work:hover .work__ph img{transform:scale(1.06);filter:saturate(1.05)}
.work__ph::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,0) 42%,rgba(0,0,0,.72));
}
.work__play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.86);
  width:56px;height:56px;border-radius:50%;z-index:2;
  border:1px solid rgba(255,255,255,.7);display:grid;place-items:center;
  opacity:0;transition:all .35s var(--ease);
  background:rgba(0,0,0,.18);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);
}
.work__play svg{width:16px;height:16px;fill:#fff;margin-left:2px}
.work:hover .work__play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.work__tag{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:4px 10px;font-size:11px;letter-spacing:.14em;
  background:rgba(11,11,13,.62);border:1px solid rgba(255,255,255,.18);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.work__meta{position:absolute;left:16px;right:16px;bottom:14px;z-index:2}
.work__t{font-size:16px;font-weight:500;letter-spacing:.02em;color:#fff}
.work__d{font-size:12.5px;color:rgba(255,255,255,.62);margin-top:4px}
.works__more{display:flex;justify-content:center;margin-top:44px}

/* 弹层 */
.lb{
  position:fixed;inset:0;z-index:200;display:none;
  background:rgba(6,6,8,.94);
  align-items:center;justify-content:center;padding:5vh 4vw;
}
.lb.on{display:flex}
.lb__box{max-width:1080px;width:100%}
.lb__box img,.lb__box video{width:100%;max-height:80vh;object-fit:contain;background:#000}
.lb__cap{display:flex;justify-content:space-between;gap:16px;color:#cfcbc3;font-size:13.5px;margin-top:14px}
.lb__x{position:absolute;right:24px;top:20px;width:42px;height:42px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.3);border-radius:50%}
.lb__x svg{width:16px;height:16px;stroke:#fff;stroke-width:1.6;fill:none}

/* ==========================================================================
   服务
   ========================================================================== */
.svc{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
.svc__i{
  background:var(--bg);padding:38px 32px 34px;position:relative;
  transition:background .35s var(--ease);
}
[data-theme="light"] .svc__i{background:var(--surface)}
.svc__i:hover{background:var(--surface-2)}
.svc__ic{
  width:44px;height:44px;display:grid;place-items:center;margin-bottom:22px;
  border:1px solid var(--line-strong);border-radius:50%;color:var(--gold);
}
.svc__ic svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.4}
.svc__h{font-size:18px;font-weight:600;letter-spacing:.03em;margin-bottom:10px}
.svc__p{font-size:14px;color:var(--text-dim);line-height:1.8;min-height:50px}
.svc__tag{
  display:inline-block;margin-top:18px;font-size:12px;color:var(--gold);
  letter-spacing:.1em;border-bottom:1px solid var(--gold-dim);padding-bottom:3px;
}

/* ==========================================================================
   为什么 / 数字
   ========================================================================== */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.why__i{padding-top:26px;border-top:1px solid var(--line-strong)}
.why__n{
  font-size:13px;letter-spacing:.2em;color:var(--gold);margin-bottom:18px;display:block;
}
.why__h{font-size:20px;font-weight:600;margin-bottom:12px;letter-spacing:.02em}
.why__p{font-size:14.5px;color:var(--text-dim);line-height:1.85}

/* ==========================================================================
   流程
   ========================================================================== */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.flow::before{
  content:"";position:absolute;left:0;right:0;top:26px;height:1px;
  background:linear-gradient(90deg,var(--line-strong),var(--gold),var(--line-strong));
  opacity:.5;
}
.flow__i{padding-right:16px;position:relative}
.flow__d{
  width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
  background:var(--bg);border:1px solid var(--line-strong);position:relative;z-index:1;
  font-size:13px;letter-spacing:.1em;color:var(--gold);font-weight:600;
}
.sec--alt .flow__d{background:var(--bg-alt)}
.flow__h{font-size:17px;font-weight:600;margin:20px 0 8px}
.flow__p{font-size:13.5px;color:var(--text-dim);line-height:1.8}
.flow__t{font-size:12px;color:var(--text-mute);margin-top:10px;letter-spacing:.06em}

/* ==========================================================================
   报价
   ========================================================================== */
.price{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.price__i{
  background:var(--surface);border:1px solid var(--line);padding:36px 30px 32px;
  display:flex;flex-direction:column;transition:all .35s var(--ease);position:relative;
}
[data-theme="light"] .price__i{background:var(--card,#fff)}
.price__i:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.price__i--hot{border-color:var(--gold);background:linear-gradient(180deg,var(--gold-dim),transparent 46%),var(--surface)}
.price__badge{
  position:absolute;right:0;top:0;background:var(--gold);color:#0b0b0d;
  font-size:11px;letter-spacing:.14em;padding:5px 12px;font-weight:600;
}
.price__h{font-size:15px;letter-spacing:.1em;color:var(--text-dim)}
.price__v{margin:16px 0 6px;font-size:34px;font-weight:600;letter-spacing:.01em;line-height:1}
.price__v small{font-size:13px;font-weight:400;color:var(--text-mute);letter-spacing:.04em;margin-left:6px}
.price__u{font-size:12.5px;color:var(--text-mute)}
.price__l{margin:26px 0 28px;flex:1}
.price__l li{
  font-size:14px;color:var(--text-dim);padding:9px 0 9px 22px;position:relative;
  border-bottom:1px dashed var(--line);
}
.price__l li:last-child{border-bottom:0}
.price__l li::before{
  content:"";position:absolute;left:2px;top:17px;width:7px;height:7px;
  border-left:1px solid var(--gold);border-bottom:1px solid var(--gold);
  transform:rotate(-45deg);
}
.price__note{
  margin-top:22px;font-size:12.5px;color:var(--text-mute);text-align:center;line-height:1.8;
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:26px 48px 26px 0;position:relative;
  font-size:16.5px;font-weight:500;letter-spacing:.02em;transition:color .25s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--gold)}
.faq summary::after{
  content:"";position:absolute;right:8px;top:50%;width:11px;height:11px;
  border-right:1px solid var(--text-dim);border-bottom:1px solid var(--text-dim);
  transform:translateY(-70%) rotate(45deg);transition:transform .3s var(--ease);
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--gold)}
.faq details[open] summary{color:var(--gold)}
.faq__a{padding:0 60px 28px 0;color:var(--text-dim);font-size:14.5px;line-height:1.9}

/* ==========================================================================
   关于
   ========================================================================== */
.about{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.about__txt p{color:var(--text-dim);font-size:15px;line-height:1.95;margin-bottom:18px}
.about__dl{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 30px;margin-top:32px}
.about__dl dt{font-size:12px;letter-spacing:.16em;color:var(--text-mute);margin-bottom:6px}
.about__dl dd{font-size:15px;color:var(--text)}
.about__pics{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:170px 170px;gap:12px}
.about__pics img{width:100%;height:100%;object-fit:cover;filter:grayscale(.15) contrast(1.03);transition:filter .5s var(--ease)}
.about__pics img:hover{filter:none}
.about__pics a:first-child{grid-column:1/-1;grid-row:1}

/* ==========================================================================
   CTA
   ========================================================================== */
.cta{
  position:relative;padding:96px 0;text-align:center;overflow:hidden;
  background:linear-gradient(180deg,var(--bg-alt),var(--bg));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta::before{
  content:"";position:absolute;left:50%;top:-40%;width:560px;height:560px;
  transform:translateX(-50%);border-radius:50%;
  background:radial-gradient(circle,rgba(201,162,39,.16),transparent 66%);
  pointer-events:none;
}
.cta h2{font-size:clamp(26px,3vw,42px);font-weight:600;letter-spacing:.02em;margin-bottom:18px}
.cta p{color:var(--text-dim);font-size:15.5px;margin-bottom:40px}
.cta__btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ==========================================================================
   页脚
   ========================================================================== */
.ftr{background:var(--bg);padding:76px 0 0;border-top:1px solid var(--line)}
.ftr__top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:48px;padding-bottom:56px}
.ftr__brand .brand{margin-bottom:20px}
.ftr__desc{font-size:14px;color:var(--text-dim);line-height:1.9;max-width:34ch}
.ftr__h{font-size:12px;letter-spacing:.2em;color:var(--text-mute);margin-bottom:20px}
.ftr__l li{margin-bottom:11px}
.ftr__l a{font-size:14.5px;color:var(--text-dim)}
.ftr__c p{font-size:14.5px;color:var(--text-dim);margin-bottom:12px;line-height:1.75}
.ftr__c b{display:block;font-size:24px;letter-spacing:.04em;color:var(--gold);font-weight:600;margin:6px 0 4px}
.ftr__qr{display:flex;gap:14px;align-items:center;margin-top:20px}
.ftr__qr img{width:84px;height:84px;object-fit:contain;background:#fff;padding:4px}
.ftr__qr span{font-size:12.5px;color:var(--text-mute);line-height:1.7}

/* 城市分站折叠 */
.faq-area{border-top:1px solid var(--line);padding:20px 0}
.faq-area summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-mute);letter-spacing:.06em;
}
.faq-area summary::-webkit-details-marker{display:none}
.faq-area summary::after{
  content:"";width:7px;height:7px;border-right:1px solid var(--text-mute);
  border-bottom:1px solid var(--text-mute);transform:rotate(45deg);transition:transform .3s
}
.faq-area[open] summary::after{transform:rotate(-135deg)}
.faq-area__in{display:flex;flex-wrap:wrap;gap:8px 0;margin-top:16px}
.faq-area__in a{
  font-size:13px;color:var(--text-mute);padding-right:14px;margin-right:14px;
  border-right:1px solid var(--line);
}
.faq-area__in a:last-child{border-right:0}
.faq-area__in a:hover{color:var(--gold)}

.ftr__bot{
  border-top:1px solid var(--line);padding:22px 0;display:flex;
  justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-mute);
}
.ftr__bot a{color:var(--text-mute)}

/* 悬浮栏 */
.rbar{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:80;display:flex;flex-direction:column}
.rbar a,.rbar button{
  width:48px;height:48px;display:grid;place-items:center;
  background:rgba(21,21,26,.94);border:1px solid var(--line);border-right:0;
  border-bottom:0;color:var(--text-dim);transition:all .25s var(--ease);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.rbar>div:first-child a,.rbar>*:first-child{border-top-left-radius:var(--r)}
.rbar>*:last-child{border-bottom-left-radius:var(--r)}
.rbar a:hover,.rbar button:hover{background:var(--gold);color:#0b0b0d;border-color:var(--gold)}
.rbar svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.5}
.rbar__qr{position:absolute;right:100%;bottom:0;display:none;background:var(--surface);border:1px solid var(--line);padding:10px}
.rbar__qr img{width:104px;height:104px;background:#fff;padding:3px}
.rbar__qr p{font-size:11px;text-align:center;color:var(--text-mute);margin-top:6px}
.rbar li:hover .rbar__qr,.rbar div:hover .rbar__qr{display:block}

/* ==========================================================================
   内页（沿用原模板结构，只换皮）
   ========================================================================== */
.page-banner{
  position:relative;height:300px;overflow:hidden;display:flex;align-items:center;
  margin-top:0;
}
.page-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.45) saturate(.9)}
.page-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,11,13,.5),var(--bg))}

.search-wrap.page{
  padding:18px 0;border-bottom:1px solid var(--line);background:var(--bg-alt);
}
.search-wrap .main-container{display:flex;align-items:center;gap:20px;justify-content:space-between}
.breadcrumb{font-size:13px;color:var(--text-mute);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.breadcrumb a{color:var(--text-dim)}
.search-form form{display:flex;gap:0}
.search-form input.text{
  width:220px;height:40px;padding:0 14px;font-size:14px;
  background:var(--surface);border:1px solid var(--line);border-right:0;color:var(--text);
  outline:none;border-radius:var(--r) 0 0 var(--r);
}
.search-form input.text:focus{border-color:var(--gold)}
.search-form input.btn{
  height:40px;padding:0 22px;background:var(--gold);color:#0b0b0d;
  border:0;font-size:14px;letter-spacing:.08em;cursor:pointer;border-radius:0 var(--r) var(--r) 0;
}

.products{padding:64px 0 96px;display:grid;grid-template-columns:250px 1fr;gap:48px;align-items:start}
.main-container{width:100%;max-width:var(--max);margin:0 auto;padding-left:var(--gut);padding-right:var(--gut)}

/* 左侧栏目 */
.product-category{position:sticky;top:100px;background:var(--surface);border:1px solid var(--line)}
.product-category .title{padding:26px 24px;border-bottom:1px solid var(--line)}
.product-category .title p{font-size:18px;font-weight:600;letter-spacing:.04em;color:var(--text)}
.product-category .title span{display:block;font-size:10.5px;letter-spacing:.18em;color:var(--text-mute);margin-top:6px;text-transform:uppercase}
.product-category .list ul{padding:8px}
.product-category .list li a{
  display:block;padding:12px 16px;font-size:14.5px;color:var(--text-dim);
  border-left:2px solid transparent;transition:all .25s var(--ease);
}
.product-category .list li a:hover{background:var(--surface-2);color:var(--text)}
.product-category .list li.current_page_item a{border-left-color:var(--gold);color:var(--gold);background:var(--surface-2)}
.product-category .phone{margin-top:0;padding:24px;border-top:1px solid var(--line)}
.product-category .phone dl{display:flex;gap:12px;align-items:center}
.product-category .phone dt img{width:22px;filter:invert(78%) sepia(38%) saturate(560%) hue-rotate(6deg)}
.product-category .phone span{font-size:11.5px;color:var(--text-mute);letter-spacing:.1em;display:block}
.product-category .phone p{font-size:19px;font-weight:600;color:var(--gold);letter-spacing:.03em;margin-top:2px}

/* 文章列表 */
.product-list .list ul{border-top:1px solid var(--line)}
.product-list .list li{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:20px 4px;border-bottom:1px solid var(--line);
  transition:padding .25s var(--ease);
}
.product-list .list li:hover{padding-left:12px}
.product-list .list li a{font-size:16px;color:var(--text)}
.product-list .list li a:hover{color:var(--gold)}
.product-list .list li span{font-size:13px;color:var(--text-mute);flex:0 0 auto;letter-spacing:.04em}
.text-list .list li{justify-content:space-between}

/* 图文列表 */
.product-list .list .row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;border:0}
.product-list .list .row .fl{background:var(--surface);border:1px solid var(--line);transition:all .3s var(--ease)}
.product-list .list .row .fl:hover{border-color:var(--gold);transform:translateY(-3px)}
.product-list .list .row .img{aspect-ratio:4/3;overflow:hidden}
.product-list .list .row .img img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.product-list .list .row .fl:hover img{transform:scale(1.05)}
.product-list .list .row .text{padding:16px 18px;font-size:15px}
.product-list .list .row .text a{color:var(--text)}

/* 分页 */
.pages{margin-top:44px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.pages a,.pages span{
  min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 14px;font-size:14px;border:1px solid var(--line);color:var(--text-dim);
  border-radius:var(--r);transition:all .25s var(--ease);
}
.pages a:hover,.pages .current{border-color:var(--gold);color:var(--gold);background:var(--gold-dim)}

/* 详情 */
.page-content{background:var(--surface);border:1px solid var(--line);padding:44px}
.content-title h4{font-size:clamp(22px,2.2vw,30px);font-weight:600;line-height:1.45;letter-spacing:.01em}
.content-title p{display:flex;gap:19px;flex-wrap:wrap;margin-top:16px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.content-title span{font-size:13px;color:var(--text-mute)}
.content-text{padding:30px 0 10px;font-size:15.5px;line-height:1.95;color:var(--text-dim)}
.content-text p{margin-bottom:18px}
.content-text img{margin:22px auto;border-radius:var(--r)}
.content-text h2,.content-text h3{color:var(--text);margin:28px 0 14px;font-size:19px}
.content-text a{color:var(--gold);border-bottom:1px solid var(--gold-dim)}
.content-text ul,.content-text ol{margin:0 0 18px 22px}
.content-text li{list-style:disc;margin-bottom:8px}
.content-page{margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.content-page .row{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:14px;color:var(--text-dim)}
.content-page a{color:var(--text-dim)}

/* 产品详情图集 */
.ppd-top-box{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin-bottom:40px}
.ppd-img{background:var(--surface-2);border:1px solid var(--line)}
.gallery-top{aspect-ratio:4/3}
.gallery-top .swiper-slide img,.ppd-img img{width:100%;height:100%;object-fit:contain}
.gallery-thumbs{margin-top:8px}
.gallery-thumbs .swiper-slide{opacity:.5;cursor:pointer;border:1px solid transparent}
.gallery-thumbs .swiper-slide-thumb-active{opacity:1;border-color:var(--gold)}
.ppd-pname{font-size:24px;font-weight:600;margin-bottom:14px}
.ppd-info-content{color:var(--text-dim);font-size:15px;line-height:1.9}
.ppd-tell{margin-top:26px;padding:16px 20px;border:1px solid var(--gold);color:var(--gold);font-size:15px;letter-spacing:.03em}
.swiper-button-prev,.swiper-button-next{color:var(--gold)}
.ppd-content-text{margin-top:36px;padding-top:28px;border-top:1px solid var(--line);line-height:1.95;color:var(--text-dim)}

/* 地图页 */
.list_map .map{min-height:460px;border:1px solid var(--line);background:var(--surface)}
.hot-text{margin-top:34px;font-size:14px;color:var(--text-dim);line-height:2}
.hot-text a{margin-right:12px;color:var(--gold)}

/* 标签页 */
.tag_index .container{max-width:var(--max);margin:0 auto;padding:64px var(--gut) 96px}
.tag_index .sub-tit{font-size:13px;letter-spacing:.16em;color:var(--gold);margin-bottom:12px}
.tag_index h1,.tag_index h2{font-size:26px;margin-bottom:28px}
.tag_index .list-5{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tag_index .list-5 li a{font-size:14px;color:var(--text-dim)}
.tag_index .curmbs{font-size:13px;color:var(--text-mute);margin:20px 0}
.tag_index .ct2{display:grid;grid-template-columns:1fr;gap:40px}
.tag_index .ct2-mn{border-top:1px solid var(--line);padding-top:24px}
.tag_index .section-sub{font-size:12px;letter-spacing:.18em;color:var(--text-mute);margin-bottom:10px}
.tag_index .img-center{text-align:center}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1370px){
  .hdr__tel{display:none}
}
@media (max-width:1180px){
  .works{grid-template-columns:repeat(2,1fr)}
  .svc{grid-template-columns:repeat(2,1fr)}
  .price{grid-template-columns:1fr;gap:14px}
  .ftr__top{grid-template-columns:1fr 1fr;gap:36px}
  .about{grid-template-columns:1fr;gap:36px}
  .flow{grid-template-columns:repeat(3,1fr);row-gap:34px}
  .flow::before{display:none}
}
@media (max-width:900px){
  .products{grid-template-columns:1fr;gap:28px}
  .product-category{position:static}
  .product-category .list ul{display:flex;flex-wrap:wrap;gap:6px}
  .product-category .list li a{border-left:0;border:1px solid var(--line);padding:8px 14px}
  .ppd-top-box{grid-template-columns:1fr}
  .page-content{padding:26px}
}
@media (max-width:760px){
  :root{--nav-h:62px;--gut:18px}
  .sec{padding:64px 0}
  .sec-head{margin-bottom:36px}
  .nav{
    position:fixed;inset:var(--nav-h) 0 auto;background:rgba(11,11,13,.98);
    border-bottom:1px solid var(--line);padding:8px 0 20px;
    display:none;max-height:calc(100svh - var(--nav-h));overflow:auto;
  }
  [data-theme="light"] .nav{background:rgba(250,249,246,.99)}
  .nav.on{display:block}
  .nav ul{flex-direction:column;align-items:stretch;gap:0}
  .nav a{padding:14px 22px;border-bottom:1px solid var(--line);font-size:16px}
  .nav a::after{display:none}
  .nav .sub{position:static;opacity:1;visibility:visible;transform:none;background:none;border:0;padding:0 0 0 16px;box-shadow:none}
  .burger{display:grid;margin-left:auto}
  .hdr__tel{display:none}
  .hdr__act .btn{display:none}
  .hero{min-height:88svh}
  .hero__media img{object-position:50% 34%}
  /* 竖屏时标题压在落日带上方，需更强的下半部压暗 */
  .hero__media::after{
    background:
      linear-gradient(180deg,
        rgba(9,9,12,.34) 0%,
        rgba(9,9,12,.08) 18%,
        rgba(9,9,12,.40) 40%,
        rgba(9,9,12,.68) 56%,
        rgba(9,9,12,.88) 74%,
        var(--bg) 100%),
      linear-gradient(90deg,
        rgba(9,9,12,.50) 0%,
        rgba(9,9,12,.20) 55%,
        rgba(9,9,12,.22) 100%);
  }
  .hero__in{padding-bottom:52px}
  .hero__scroll{display:none}
  .stats{grid-template-columns:1fr 1fr}
  .stats__i{padding:20px 0 20px 16px}
  .stats__i:nth-child(odd){border-left:0;padding-left:0}
  .stats__i:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .works{grid-template-columns:1fr;gap:14px}
  .svc{grid-template-columns:1fr}
  .why{grid-template-columns:1fr;gap:26px}
  .flow{grid-template-columns:1fr 1fr}
  .ftr__top{grid-template-columns:1fr;gap:30px}
  .ftr__bot{flex-direction:column;gap:8px}
  .rbar{display:none}
  .page-banner{height:200px}
  .search-wrap .main-container{flex-direction:column;align-items:stretch;gap:12px}
  .search-form input.text{width:100%}
  .product-list .list .row{grid-template-columns:1fr 1fr}
  .tag_index .list-5{grid-template-columns:1fr 1fr}
  .about__pics{grid-template-rows:140px 120px}
}
@media (max-width:420px){
  .product-list .list .row{grid-template-columns:1fr}
  .hero__cta .btn{width:100%}
}

/* ==========================================================================
   内页 v2（newv2 专用结构：.phero / .pbar / .icards / .ilist / .mapx / .tagx）
   ========================================================================== */
.phero{position:relative;min-height:340px;display:flex;align-items:flex-end;overflow:hidden;padding-bottom:44px}
.phero__bg{position:absolute;inset:0;z-index:0}
.phero__bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.34) saturate(.85)}
.phero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,11,13,.55) 0%,rgba(11,11,13,.72) 55%,var(--bg) 100%)}
.phero__in{position:relative;z-index:1;width:100%}
.phero__crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.06em;color:rgba(255,255,255,.6);margin-bottom:16px;flex-wrap:wrap}
.phero__crumb a{color:rgba(255,255,255,.72)}
.phero__crumb a:hover{color:var(--gold)}
.phero__h1{font-size:clamp(28px,3.4vw,46px);font-weight:600;letter-spacing:.02em;color:#fff;line-height:1.2}

.pbar{background:var(--bg-alt);border-bottom:1px solid var(--line)}
.pbar .main-container{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:14px;padding-bottom:14px}
.pbar__crumb{font-size:13px;color:var(--text-mute)}
.pbar__crumb a{color:var(--text-dim)}
.pbar__search{display:flex}
.pbar__search .text{
  width:230px;height:40px;padding:0 14px;font-size:14px;color:var(--text);
  background:var(--surface);border:1px solid var(--line);border-right:0;
  border-radius:var(--r) 0 0 var(--r);outline:none;
}
.pbar__search .text:focus{border-color:var(--gold)}
.pbar__search .btn{
  height:40px;padding:0 22px;background:var(--gold);color:#0b0b0d;border:0;
  font-size:14px;letter-spacing:.08em;cursor:pointer;border-radius:0 var(--r) var(--r) 0;
}

/* 图文卡片（服务/案例列表） */
.icards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.icard{display:block;background:var(--surface);border:1px solid var(--line);transition:all .35s var(--ease)}
.icard:hover{border-color:var(--gold);transform:translateY(-4px)}
.icard__img{aspect-ratio:4/3;overflow:hidden;background:var(--surface-2)}
.icard__img img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.icard:hover .icard__img img{transform:scale(1.05)}
.icard__txt{padding:18px 20px 22px}
.icard__txt h3{font-size:16.5px;font-weight:600;color:var(--text);line-height:1.5}
.icard__txt p{font-size:13.5px;color:var(--text-mute);margin-top:8px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 文章列表（带日期块） */
.ilist{border-top:1px solid var(--line)}
.ilist__i{display:flex;align-items:center;gap:26px;padding:22px 4px;border-bottom:1px solid var(--line);transition:all .3s var(--ease)}
.ilist__i:hover{padding-left:12px;background:var(--surface)}
.ilist__date{flex:0 0 66px;text-align:center;border-right:1px solid var(--line);padding-right:18px}
.ilist__date b{display:block;font-size:24px;font-weight:600;color:var(--gold);letter-spacing:.02em;line-height:1.1}
.ilist__date span{font-size:11.5px;color:var(--text-mute);letter-spacing:.06em}
.ilist__main{flex:1 1 auto;min-width:0}
.ilist__main h3{font-size:16.5px;font-weight:500;color:var(--text);line-height:1.55}
.ilist__i:hover .ilist__main h3{color:var(--gold)}
.ilist__main p{font-size:13.5px;color:var(--text-mute);margin-top:7px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.ilist__more{flex:0 0 auto;font-size:13px;color:var(--text-mute);letter-spacing:.06em}
.ilist__i:hover .ilist__more{color:var(--gold)}

/* 内容页 */
.page-content h1,.page-content h2,.page-content h3{color:var(--text)}
.page-content h2{font-size:21px;margin:26px 0 12px}
.page-content p{line-height:1.95;color:var(--text-dim);margin-bottom:16px}
.page-content img{max-width:100%;height:auto}
.page-content .mapbox{margin-top:28px;border:1px solid var(--line);overflow:hidden;line-height:0}
.page-content iframe{width:100%;height:360px;border:0;display:block}

/* 城市分站地图页 */
.mapx{padding:56px 0 96px}
.mapx__hot{border:1px solid var(--line);background:var(--surface);padding:26px 28px;margin-bottom:34px}
.mapx__hot h2{font-size:15px;letter-spacing:.1em;color:var(--gold);margin-bottom:14px}
.mapx__hot a{display:inline-block;font-size:14px;color:var(--text-dim);margin:0 14px 8px 0}
.mapx__hot a:hover{color:var(--gold)}
.mapx__prov{border:1px solid var(--line);background:var(--surface);padding:8px 26px 26px}
.mapx__prov h2{font-size:15px;letter-spacing:.1em;color:var(--text);margin:22px 0 14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.mapx__row{display:flex;gap:18px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px}
.mapx__row dt{flex:0 0 92px;color:var(--gold);letter-spacing:.06em}
.mapx__row dd{flex:1;color:var(--text-dim);line-height:2}
.mapx__row dd a{margin-right:14px;color:var(--text-dim)}
.mapx__row dd a:hover{color:var(--gold)}

/* TAG 结果页 */
.tagx{padding:56px 0 96px}
.tagx__hd{margin-bottom:34px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.tagx__hd .sub-tit{font-size:12px;letter-spacing:.2em;color:var(--gold);margin-bottom:10px}
.tagx__hd h1{font-size:clamp(24px,2.6vw,34px);color:var(--text);font-weight:600}
.tagx__crumb{font-size:13px;color:var(--text-mute);margin-top:14px}

@media (max-width:900px){
  .icards{grid-template-columns:1fr 1fr}
  .pbar .main-container{flex-direction:column;align-items:stretch;gap:12px}
  .pbar__search .text{flex:1;width:auto}
}
@media (max-width:760px){
  .phero{min-height:250px;padding-bottom:30px}
  .icards{grid-template-columns:1fr}
  .ilist__i{gap:16px}
  .ilist__date{flex:0 0 54px;padding-right:12px}
  .ilist__date b{font-size:20px}
  .page-content .mapbox iframe{height:280px}
  .mapx__row{flex-direction:column;gap:4px}
  .mapx__row dt{flex:none}
}

/* 无图卡片的占位底纹（避免出现重复大图） */
.icard__img--ph{
  background:
    radial-gradient(120% 90% at 30% 20%,rgba(201,162,39,.16),transparent 62%),
    repeating-linear-gradient(135deg,rgba(255,255,255,.028) 0 2px,transparent 2px 9px),
    var(--surface-2);
  position:relative;
}
.icard__img--ph::after{
  content:"";position:absolute;left:50%;top:50%;width:34px;height:24px;transform:translate(-50%,-50%);
  border:1px solid rgba(201,162,39,.5);border-radius:2px;
}