/* =========================================
   铭赞网络® | SEO优化 - 主样式
   配色:深蓝海军色 + 金色点缀 + 纯白
   ========================================= */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;line-height:1.7;color:#1f2a44;
  background:#fafbfc;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:#c89b3c}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}

:root{
  --navy:#0a1f44;
  --navy-2:#102a55;
  --navy-soft:#1a3464;
  --gold:#c89b3c;
  --gold-2:#e2b85a;
  --gold-soft:#f5e9c8;
  --ink:#1f2a44;
  --ink-soft:#4a5670;
  --ink-mute:#7a859a;
  --line:#e6eaf0;
  --bg:#fafbfc;
  --bg-2:#f3f5f9;
  --white:#ffffff;
  --shadow-sm:0 2px 8px rgba(10,31,68,.06);
  --shadow-md:0 8px 24px rgba(10,31,68,.08);
  --shadow-lg:0 20px 60px rgba(10,31,68,.12);
  --radius:12px;
  --radius-lg:18px;
  --container:1280px;
  --header-h:72px;
}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}

/* ============= 顶部导航+Banner 容器 ============= */
.topbar{
  position:relative;
  background:linear-gradient(135deg,var(--navy) 0%,#061536 100%);
  color:#fff;
  overflow:hidden;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:var(--header-h);
  position:relative;z-index:10;
}
.logo a{display:inline-flex;align-items:center;gap:10px;color:#fff}
.logo-brand{
  font-family:'Noto Serif SC',serif;
  font-size:24px;font-weight:900;letter-spacing:1px;
  color:#ffd66b;
  text-shadow:0 0 12px rgba(255,214,107,.45),0 2px 4px rgba(0,0,0,.4);
  background:linear-gradient(135deg,#ffe089 0%,#ffc14a 50%,#e2a01f 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  filter:drop-shadow(0 0 8px rgba(255,200,80,.35));
  position:relative;display:inline-block;
}
.logo-r{
  font-size:.45em;font-weight:600;vertical-align:super;
  color:#ffd66b;-webkit-text-fill-color:#ffd66b;
  margin-left:2px;
}
.logo-divider{color:rgba(255,255,255,.35);font-weight:300;font-size:20px;margin:0 4px}
.logo-keyword{
  font-size:18px;font-weight:500;color:rgba(255,255,255,.92);
  letter-spacing:1px;font-family:'Noto Serif SC',serif;
}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 14px;font-size:14.5px;font-weight:400;
  color:rgba(255,255,255,.85);letter-spacing:.5px;
  border-radius:6px;transition:all .25s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link.active{color:#ffd66b}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:0;width:18px;height:2px;
  background:linear-gradient(90deg,transparent,#ffd66b,transparent);
  transform:translateX(-50%);border-radius:2px;
}
.nav-cta{
  background:linear-gradient(135deg,#e2b85a,#c89b3c);
  color:#0a1f44 !important;font-weight:600 !important;
  box-shadow:0 4px 14px rgba(200,155,60,.35);
}
.nav-cta:hover{background:linear-gradient(135deg,#f0c46b,#d6a44a);transform:translateY(-1px)}

.nav-toggle{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;gap:5px;align-items:center}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============= Hero ============= */
.hero{position:relative;padding:80px 0 120px;overflow:hidden}
.hero-bg{position:absolute;inset:0;pointer-events:none;z-index:0}
.hero-mesh{
  position:absolute;inset:0;opacity:.35;
  background:
    radial-gradient(at 20% 20%,rgba(200,155,60,.18) 0px,transparent 50%),
    radial-gradient(at 80% 30%,rgba(80,140,255,.15) 0px,transparent 50%),
    radial-gradient(at 60% 80%,rgba(200,155,60,.10) 0px,transparent 50%);
  animation:meshDrift 18s ease-in-out infinite alternate;
}
.hero-glow{position:absolute;border-radius:50%;filter:blur(80px);opacity:.45}
.hero-glow-1{width:480px;height:480px;top:-120px;right:-100px;background:radial-gradient(circle,rgba(200,155,60,.4) 0%,transparent 70%)}
.hero-glow-2{width:600px;height:600px;bottom:-200px;left:-150px;background:radial-gradient(circle,rgba(80,140,255,.35) 0%,transparent 70%)}
.hero-grid{
  position:absolute;inset:0;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.4) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.4) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
}
.hero-inner{position:relative;z-index:2}
.hero-content{max-width:980px}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:100px;
  background:rgba(200,155,60,.15);border:1px solid rgba(200,155,60,.35);
  color:#ffd66b;font-size:13.5px;font-weight:500;letter-spacing:1.5px;
  margin-bottom:24px;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:#ffd66b;box-shadow:0 0 8px #ffd66b}

.hero-title{
  font-family:'Noto Serif SC',serif;
  font-size:56px;line-height:1.25;font-weight:900;color:#fff;
  letter-spacing:1px;margin-bottom:20px;
  word-break:keep-all;text-wrap:balance;overflow-wrap:break-word;
}
.hero-title .hl{
  background:linear-gradient(135deg,#ffe089 0%,#ffc14a 50%,#e2a01f 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  filter:drop-shadow(0 0 16px rgba(255,200,80,.4));
  padding:0 2px;
}
.title-line-sub{
  display:block;
  font-family:'Noto Sans SC',sans-serif;
  font-size:.45em;font-weight:400;color:rgba(255,255,255,.7);
  margin-top:14px;letter-spacing:1.5px;
}

.hero-desc{
  font-size:17px;line-height:1.9;color:rgba(255,255,255,.85);
  max-width:820px;margin-bottom:36px;
}
.hero-desc strong{color:#ffd66b;font-weight:600}

.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:56px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 32px;border-radius:8px;font-size:15px;font-weight:600;
  letter-spacing:1px;transition:all .3s ease;cursor:pointer;
}
.btn-primary{
  background:linear-gradient(135deg,#e2b85a,#c89b3c);
  color:#0a1f44;box-shadow:0 8px 24px rgba(200,155,60,.35);
}
.btn-primary:hover{background:linear-gradient(135deg,#f0c46b,#d6a44a);transform:translateY(-2px);box-shadow:0 12px 30px rgba(200,155,60,.5);color:#0a1f44}
.btn-ghost{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.3);color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.55);color:#fff}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  max-width:760px;padding:28px 36px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);
  border-radius:14px;backdrop-filter:blur(10px);
}
.hero-stats li{display:flex;flex-direction:column;align-items:flex-start;line-height:1.2}
.hero-stats .num{font-family:'Noto Serif SC',serif;font-size:38px;font-weight:900;color:#ffd66b;line-height:1}
.hero-stats em{font-style:normal;font-size:14px;color:rgba(255,255,255,.7);margin:4px 0 2px}
.hero-stats small{font-size:13px;color:rgba(255,255,255,.55)}

.hero-scroll{
  position:absolute;left:50%;bottom:30px;transform:translateX(-50%);
  width:24px;height:40px;border:2px solid rgba(255,255,255,.35);border-radius:14px;z-index:3;
}
.hero-scroll span{
  display:block;width:4px;height:8px;border-radius:2px;background:#ffd66b;
  margin:6px auto;animation:scrollDot 1.8s ease-in-out infinite;
}
@keyframes scrollDot{0%{transform:translateY(0);opacity:1}50%{transform:translateY(12px);opacity:.3}100%{transform:translateY(0);opacity:1}}
@keyframes meshDrift{0%{transform:translate(0,0) scale(1)}100%{transform:translate(-30px,-20px) scale(1.05)}}

/* ============= 通用 Section ============= */
.section{padding:100px 0;position:relative;overflow:hidden}
.section-head{text-align:center;max-width:840px;margin:0 auto 64px}
.section-eyebrow{
  display:inline-block;padding:5px 16px;border-radius:100px;
  background:rgba(200,155,60,.1);color:#c89b3c;
  font-size:12.5px;font-weight:600;letter-spacing:2px;margin-bottom:16px;
}
.section-title{
  font-family:'Noto Serif SC',serif;
  font-size:42px;line-height:1.3;font-weight:900;color:var(--navy);
  margin-bottom:18px;letter-spacing:1px;
}
.section-title strong{color:var(--gold);font-weight:900}
.section-desc{font-size:16px;line-height:1.9;color:var(--ink-soft);max-width:760px;margin:0 auto}

/* ============= 服务板块 ============= */
.section-services{background:var(--white)}
.service-grid{display:grid;gap:24px}
.service-core{grid-template-columns:repeat(3,1fr)}
.service-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:36px 30px;position:relative;
  transition:all .35s ease;overflow:hidden;
}
.service-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--gold),var(--gold-2));
  transform:scaleX(0);transform-origin:left;transition:transform .4s ease;
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.service-card:hover::before{transform:scaleX(1)}
.service-card-featured{
  background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 100%);
  color:#fff;border:none;
}
.service-card-featured::before{background:linear-gradient(90deg,var(--gold-2),#fff);transform:scaleX(1)}
.service-card-featured .service-num{color:rgba(255,214,107,.4)}
.service-card-featured h3{color:#fff}
.service-card-featured p{color:rgba(255,255,255,.85)}
.service-card-featured .service-list li{color:rgba(255,255,255,.8)}
.service-card-featured .service-list li::before{background:var(--gold-2)}

.service-num{
  position:absolute;top:24px;right:30px;
  font-family:'Noto Serif SC',serif;font-size:48px;font-weight:900;
  color:rgba(200,155,60,.12);line-height:1;
}
.service-icon{
  width:60px;height:60px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(200,155,60,.12),rgba(200,155,60,.04));
  color:var(--gold);margin-bottom:24px;
}
.service-icon svg{width:36px;height:36px}
.service-card h3{
  font-family:'Noto Serif SC',serif;font-size:22px;font-weight:700;
  color:var(--navy);margin-bottom:14px;letter-spacing:1px;
}
.service-card p{font-size:14.5px;line-height:1.8;color:var(--ink-soft);margin-bottom:20px}
.service-list li{
  position:relative;padding-left:20px;font-size:13.5px;color:var(--ink-soft);line-height:1.9;
}
.service-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;
  background:var(--gold);border-radius:50%;
}

.service-extended{grid-template-columns:repeat(3,1fr)}
.service-mini{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:all .3s ease;position:relative;
}
.service-mini::after{
  content:"→";position:absolute;top:24px;right:24px;
  color:var(--ink-mute);font-size:18px;transition:all .3s ease;
}
.service-mini:hover{border-color:var(--gold);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.service-mini:hover::after{color:var(--gold);transform:translateX(4px)}
.service-mini h4{font-size:17px;font-weight:700;color:var(--navy);margin-bottom:10px;font-family:'Noto Serif SC',serif}
.service-mini p{font-size:13.5px;line-height:1.75;color:var(--ink-soft)}

/* ============= 百度优化专章 ============= */
.section-baidu{
  background:linear-gradient(180deg,#f7f9fc 0%,#fff 100%);
  position:relative;
}
.baidu-bg{
  position:absolute;top:0;right:0;width:480px;height:480px;
  background:radial-gradient(circle,rgba(200,155,60,.08) 0%,transparent 70%);
  pointer-events:none;
}
.baidu-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:48px;align-items:start}
.baidu-features{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.baidu-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;position:relative;transition:all .3s ease;
}
.baidu-feature:hover{border-color:var(--gold);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.bf-num{
  font-family:'Noto Serif SC',serif;font-size:24px;font-weight:900;
  color:var(--gold);margin-bottom:10px;line-height:1;
}
.baidu-feature h4{font-size:17px;font-weight:700;color:var(--navy);margin-bottom:8px}
.baidu-feature p{font-size:13.5px;line-height:1.75;color:var(--ink-soft)}

.baidu-side-card{
  background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 100%);
  border-radius:var(--radius-lg);padding:36px 32px;color:#fff;
  position:sticky;top:90px;
}
.baidu-side-card h4{
  font-family:'Noto Serif SC',serif;font-size:22px;font-weight:700;
  margin-bottom:24px;color:#fff;letter-spacing:1px;
}
.baidu-side-card h4 strong{color:#ffd66b}
.baidu-side-card ul{margin-bottom:28px}
.baidu-side-card li{
  display:flex;justify-content:space-between;align-items:center;
  padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1);
  font-size:14px;color:rgba(255,255,255,.85);
}
.baidu-side-card li:last-child{border-bottom:none}
.baidu-side-card b{font-family:'Noto Serif SC',serif;color:#ffd66b;font-weight:700;font-size:15px}

/* ============= Google 优化专章 ============= */
.section-google{background:#fff}
.google-grid{display:grid;gap:32px}
.google-stack{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gs-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:30px 28px;transition:all .3s ease;
}
.gs-item:hover{border-color:var(--gold);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.gs-dot{
  width:14px;height:14px;border-radius:50%;
  background:linear-gradient(135deg,#4285f4,#34a853);
  margin-bottom:18px;box-shadow:0 0 0 4px rgba(66,133,244,.12);
}
.gs-item h4{font-size:17px;font-weight:700;color:var(--navy);margin-bottom:10px;font-family:'Noto Serif SC',serif}
.gs-item p{font-size:13.5px;line-height:1.8;color:var(--ink-soft)}

/* ============= AI搜索/GEO 专章 ============= */
.section-geo{
  background:linear-gradient(180deg,#0a1f44 0%,#102a55 100%);
  color:#fff;position:relative;overflow:hidden;
}
.section-geo .section-title{color:#fff}
.section-geo .section-title strong{color:#ffd66b}
.section-geo .section-desc{color:rgba(255,255,255,.85)}
.section-geo .section-eyebrow{background:rgba(255,214,107,.15);color:#ffd66b}
.geo-bg{
  position:absolute;inset:0;opacity:.4;pointer-events:none;
  background:
    radial-gradient(at 30% 20%,rgba(200,155,60,.15) 0px,transparent 50%),
    radial-gradient(at 80% 70%,rgba(80,140,255,.2) 0px,transparent 50%);
}
.geo-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:48px;position:relative;z-index:2}
.geo-platforms,.geo-methods{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-lg);padding:36px 32px;backdrop-filter:blur(10px);
}
.geo-platforms h4,.geo-methods h4{
  font-family:'Noto Serif SC',serif;font-size:22px;font-weight:700;
  color:#fff;margin-bottom:24px;letter-spacing:1px;
}
.geo-platforms h4 strong,.geo-methods h4 strong{color:#ffd66b}
.geo-platforms ul{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.geo-platforms li{
  display:flex;align-items:center;gap:10px;padding:10px 14px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
  border-radius:8px;font-size:13.5px;color:rgba(255,255,255,.9);
  transition:all .25s ease;
}
.geo-platforms li:hover{background:rgba(255,214,107,.08);border-color:rgba(255,214,107,.3)}
.flag{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:20px;border-radius:4px;
  background:linear-gradient(135deg,var(--gold),var(--gold-2));
  color:#0a1f44;font-size:10px;font-weight:700;letter-spacing:.5px;flex-shrink:0;
}
.geo-methods ol{display:flex;flex-direction:column;gap:18px}
.geo-methods li{
  padding:20px 22px;background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);border-left:3px solid var(--gold-2);
  border-radius:8px;
}
.geo-methods li b{
  display:block;font-family:'Noto Serif SC',serif;font-size:16px;
  font-weight:700;color:#ffd66b;margin-bottom:6px;
}
.geo-methods li p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.82)}

/* ============= 15年优势 ============= */
.section-advantage{background:var(--bg-2)}
.timeline{
  position:relative;display:grid;grid-template-columns:repeat(7,1fr);
  gap:0;margin-bottom:80px;padding:40px 0;
}
.timeline::before{
  content:"";position:absolute;top:60px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--gold) 15%,var(--gold) 85%,transparent);
}
.tl-item{position:relative;text-align:center;padding:0 8px}
.tl-year{
  width:50px;height:50px;border-radius:50%;
  background:#fff;border:3px solid var(--gold);
  display:flex;align-items:center;justify-content:center;
  font-family:'Noto Serif SC',serif;font-size:13px;font-weight:700;
  color:var(--navy);margin:0 auto 24px;position:relative;z-index:2;
  box-shadow:0 0 0 6px var(--bg-2);
}
.tl-item-now .tl-year{
  background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#fff;
  box-shadow:0 0 0 6px var(--bg-2),0 0 24px rgba(200,155,60,.5);
  animation:pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot{0%,100%{box-shadow:0 0 0 6px var(--bg-2),0 0 24px rgba(200,155,60,.4)}50%{box-shadow:0 0 0 10px var(--bg-2),0 0 36px rgba(200,155,60,.7)}}
.tl-content{padding:0 4px}
.tl-content h4{font-size:14.5px;font-weight:700;color:var(--navy);margin-bottom:6px;font-family:'Noto Serif SC',serif}
.tl-content p{font-size:12.5px;line-height:1.7;color:var(--ink-soft)}

.advantage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.adv-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;transition:all .3s ease;position:relative;overflow:hidden;
}
.adv-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:120px;height:120px;
  background:radial-gradient(circle,rgba(200,155,60,.08) 0%,transparent 70%);
  border-radius:50%;
}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--gold)}
.adv-num{
  font-family:'Noto Serif SC',serif;font-size:30px;font-weight:900;
  color:var(--gold);margin-bottom:12px;line-height:1;
}
.adv-card h4{font-size:18px;font-weight:700;color:var(--navy);margin-bottom:10px;font-family:'Noto Serif SC',serif}
.adv-card p{font-size:14px;line-height:1.8;color:var(--ink-soft)}

/* ============= 客户案例 ============= */
.section-cases{background:#fff}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;transition:all .3s ease;position:relative;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--gold)}
.case-meta{
  display:inline-block;padding:4px 12px;border-radius:100px;
  background:rgba(200,155,60,.1);color:var(--gold);
  font-size:12px;font-weight:600;margin-bottom:14px;
}
.case-card h4{font-size:18px;font-weight:700;color:var(--navy);margin-bottom:10px;font-family:'Noto Serif SC',serif}
.case-card p{font-size:14px;line-height:1.8;color:var(--ink-soft);margin-bottom:16px}
.case-kw{display:flex;flex-wrap:wrap;gap:8px}
.case-kw li{
  padding:3px 10px;background:var(--bg-2);
  border-radius:4px;font-size:12px;color:var(--ink-soft);
}

/* ============= 服务流程 ============= */
.section-process{background:var(--bg-2)}
.process-list{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  counter-reset:step;
}
.process-step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:32px 28px;transition:all .3s ease;
}
.process-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--gold)}
.step-no{
  display:inline-block;padding:4px 12px;border-radius:4px;
  background:linear-gradient(135deg,var(--navy),var(--navy-soft));
  color:#fff;font-size:12px;font-weight:700;letter-spacing:1.5px;margin-bottom:14px;
}
.process-step h4{font-size:18px;font-weight:700;color:var(--navy);margin-bottom:10px;font-family:'Noto Serif SC',serif}
.process-step p{font-size:14px;line-height:1.8;color:var(--ink-soft)}

/* ============= FAQ ============= */
.section-faq{background:#fff}
.faq-list{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:0;transition:all .3s ease;overflow:hidden;
}
.faq-item[open]{box-shadow:var(--shadow-md);border-color:rgba(200,155,60,.4)}
.faq-item summary{
  display:flex;justify-content:space-between;align-items:center;
  padding:22px 28px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--navy);list-style:none;
  font-family:'Noto Serif SC',serif;letter-spacing:.5px;
  user-select:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{display:none}
.faq-toggle{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  background:rgba(200,155,60,.1);position:relative;
  transition:all .3s ease;
}
.faq-toggle::before,.faq-toggle::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--gold);
  transform:translate(-50%,-50%);transition:all .3s ease;
}
.faq-toggle::before{width:12px;height:2px}
.faq-toggle::after{width:2px;height:12px}
.faq-item[open] .faq-toggle{background:var(--gold);transform:rotate(180deg)}
.faq-item[open] .faq-toggle::before,.faq-item[open] .faq-toggle::after{background:#fff}
.faq-item[open] .faq-toggle::after{opacity:0}
.faq-item summary:hover{background:rgba(200,155,60,.03)}
.faq-body{
  padding:0 28px 24px;font-size:14.5px;line-height:1.9;color:var(--ink-soft);
  border-top:1px solid var(--line);
}
.faq-body{padding-top:20px}
.faq-body p{margin-bottom:10px}
.faq-body p:last-child{margin-bottom:0}
.faq-body ul,.faq-body ol{margin:10px 0 10px 22px;display:flex;flex-direction:column;gap:6px}
.faq-body ul li{list-style:disc}
.faq-body ol li{list-style:decimal}
.faq-body strong{color:var(--navy);font-weight:600}
.faq-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:13.5px}
.faq-table th,.faq-table td{padding:10px 12px;border:1px solid var(--line);text-align:left}
.faq-table th{background:var(--bg-2);font-weight:600;color:var(--navy)}
.faq-table tbody tr:hover{background:var(--bg-2)}

/* ============= 联系方式 ============= */
.section-contact{
  background:linear-gradient(160deg,var(--navy) 0%,#061536 100%);
  color:#fff;position:relative;overflow:hidden;
}
.contact-bg{
  position:absolute;inset:0;opacity:.4;pointer-events:none;
  background:
    radial-gradient(at 80% 20%,rgba(200,155,60,.2) 0px,transparent 50%),
    radial-gradient(at 20% 80%,rgba(80,140,255,.18) 0px,transparent 50%);
}
.section-contact .section-title{color:#fff}
.section-contact .section-title strong{color:#ffd66b}
.section-contact .section-desc{color:rgba(255,255,255,.85)}
.section-contact .section-eyebrow{background:rgba(255,214,107,.15);color:#ffd66b}

.contact-grid{
  display:grid;grid-template-columns:1.6fr 1fr;gap:48px;align-items:center;
  position:relative;z-index:2;
}
.contact-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.contact-card{
  display:flex;align-items:center;gap:16px;
  padding:20px 22px;background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);
  transition:all .3s ease;
}
.contact-card:hover{background:rgba(255,214,107,.08);border-color:rgba(255,214,107,.3);transform:translateY(-2px)}
a.contact-card{cursor:pointer}
.cc-icon{
  flex-shrink:0;width:44px;height:44px;border-radius:10px;
  background:linear-gradient(135deg,var(--gold),var(--gold-2));
  display:flex;align-items:center;justify-content:center;color:#0a1f44;
}
.cc-icon svg{width:22px;height:22px}
.cc-info{display:flex;flex-direction:column;gap:4px;min-width:0;flex:1}
.cc-info span{font-size:12.5px;color:rgba(255,255,255,.6)}
.cc-info a,.cc-info em{font-size:16px;color:#fff;font-weight:600;font-style:normal;letter-spacing:.5px;word-break:break-all}
.contact-card-link .cc-info em{color:#ffd66b}
.cc-arrow{font-size:20px;color:rgba(255,255,255,.4);transition:transform .3s ease}
.contact-card-link:hover .cc-arrow{transform:translateX(4px);color:var(--gold)}

.contact-qr{display:flex;flex-direction:column;align-items:center;gap:14px}
.qr-frame{
  padding:18px;background:#fff;border-radius:18px;
  box-shadow:0 16px 40px rgba(0,0,0,.4);
  border:3px solid var(--gold-2);
}
.qr-frame img{width:200px;height:200px;display:block;border-radius:8px}
.qr-cap{
  text-align:center;margin-top:10px;font-size:13.5px;font-weight:600;color:var(--navy);
}
.qr-tip{font-size:14px;color:rgba(255,255,255,.85);text-align:center;letter-spacing:1px}

/* ============= 其他业务导航 ============= */
.section-related{background:var(--bg-2)}
.related-grid{
  display:grid;grid-template-columns:repeat(6,1fr);gap:10px;
}
.related-grid li a{
  display:flex;align-items:center;justify-content:center;
  padding:14px 12px;background:#fff;border:1px solid var(--line);
  border-radius:8px;font-size:14px;color:var(--ink-soft);
  text-align:center;transition:all .25s ease;min-height:48px;
  position:relative;overflow:hidden;
}
.related-grid li a::before{
  content:"";position:absolute;left:0;top:0;width:0;height:100%;
  background:linear-gradient(90deg,var(--gold),var(--gold-2));
  transition:width .35s ease;z-index:0;
}
.related-grid li a span{position:relative;z-index:1;transition:color .3s ease}
.related-grid li a:hover{border-color:var(--gold);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.related-grid li a:hover::before{width:100%}
.related-grid li a:hover{color:#fff}
.related-grid li a{position:relative}
.related-current{
  background:linear-gradient(135deg,var(--navy),var(--navy-soft)) !important;
  color:#ffd66b !important;border-color:var(--navy) !important;font-weight:600;
}

/* ============= Footer ============= */
.footer{
  background:#06112a;color:rgba(255,255,255,.8);
  padding:64px 0 24px;font-size:14px;
}
.footer-inner{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-logo .logo-brand{font-size:22px}
.footer-logo .logo-keyword{font-size:16px}
.footer-brand p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.65);margin-bottom:20px}
.footer-weibo{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:100px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);
  font-size:13px;color:rgba(255,255,255,.85);transition:all .3s ease;
}
.footer-weibo svg{width:16px;height:16px}
.footer-weibo:hover{background:rgba(200,155,60,.15);border-color:rgba(200,155,60,.4);color:#ffd66b}

.footer-col h5{
  font-family:'Noto Serif SC',serif;font-size:15px;font-weight:700;
  color:#fff;margin-bottom:18px;letter-spacing:1px;position:relative;
  padding-bottom:10px;
}
.footer-col h5::after{
  content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:13.5px;color:rgba(255,255,255,.7);line-height:1.7}
.footer-col li a{color:rgba(255,255,255,.7);transition:color .2s ease}
.footer-col li a:hover{color:#ffd66b}

.footer-copy{
  padding-top:24px;text-align:center;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-copy a{color:rgba(255,255,255,.7);transition:color .2s ease}
.footer-copy a:hover{color:#ffd66b}

/* ============= 返回顶部 ============= */
.back-to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;
  border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold-2));
  color:#0a1f44;display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:700;
  box-shadow:0 8px 24px rgba(200,155,60,.4);
  opacity:0;visibility:hidden;transform:translateY(20px);
  transition:all .3s ease;z-index:99;
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(200,155,60,.5);color:#0a1f44}

/* ============= 文本选中 ============= */
::selection{background:rgba(200,155,60,.3);color:var(--navy)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-2)}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--gold),var(--gold-2));border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:var(--navy)}