/* ===== PVoC 官网 · GEO 优化样式 =====
   主色：深邃墨蓝 #0f2d5c ｜ 点缀：香槟金 #c8a45c
   Hero：斜向线性分割 —— 左侧纯净渐变（文字区）/ 右侧点阵纹理（装饰区），交界处金色细线
*/
:root{
  --navy:#0f2d5c;         /* 主色：深邃墨蓝 */
  --navy-deep:#0a1f42;    /* 更深（Hero 起点） */
  --navy-mid:#16396b;
  --navy-bright:#1d4e89;  /* 亮一档（渐变/交互） */
  --gold:#c8a45c;         /* 点缀：香槟金 */
  --gold-light:#e3d3ae;
  --ink:#1a2430;          /* 正文墨色 */
  --muted:#64748b;        /* 次要文字 */
  --line:#e6ebf1;
  --bg:#fafbfd;
  --soft:#f2f6fa;
  --maxw:920px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
a{color:var(--navy-bright);text-decoration:none;}
a:hover{text-decoration:underline;}

/* 顶部横向导航 */
.topnav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);box-shadow:0 1px 3px rgba(15,45,92,.04),0 8px 24px rgba(15,45,92,.03);}
.nav-inner{max-width:1160px;margin:0 auto;padding:0 24px;height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:700;color:var(--navy);flex-shrink:0;letter-spacing:.2px;}
.brand .logo-img{height:38px;width:auto;max-width:230px;object-fit:contain;display:block;}
.topnav nav{display:flex;gap:2px;flex-wrap:wrap;}
.topnav nav a{padding:8px 13px;border-radius:8px;color:#3f5570;font-size:14px;font-weight:500;white-space:nowrap;transition:.2s;}
.topnav nav a:hover{background:var(--soft);text-decoration:none;color:var(--navy);}
.topnav nav a.active{color:#fff;background:linear-gradient(135deg,var(--navy-bright),var(--navy));font-weight:600;box-shadow:0 3px 10px rgba(15,45,92,.20);}

/* ===== Hero：多色晕染 + 全球节点网络 =====
   设计意图：
   ① 底色：五色光斑晕染（电光蓝 / 天空蓝 / 香槟金 / 蓝紫 / 青绿）叠加深墨蓝底，
      大半径 radial-gradient 让颜色自然交融，形成水彩般的晕染层次
   ② 一处装饰：右侧「全球节点网络」SVG —— 缓慢自转（像地球仪自转）+ 轻微呼吸
      （呼应 PVoC 全球通关认证的语义）
   ③ 一处金色克制点缀：标题上方 48px 金色短装饰线
*/
.hero{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  background:
    radial-gradient(55% 65% at 10% 5%, rgba(37,99,235,.40), transparent 66%),
    radial-gradient(45% 58% at 90% -2%, rgba(56,189,248,.28), transparent 64%),
    radial-gradient(52% 62% at 98% 85%, rgba(200,164,92,.32), transparent 64%),
    radial-gradient(46% 60% at 38% 106%, rgba(109,91,196,.36), transparent 66%),
    radial-gradient(38% 52% at -8% 72%, rgba(20,184,166,.20), transparent 62%),
    linear-gradient(160deg, #060e22 0%, #0a1c3d 48%, #0d2a55 100%);
  color:#eaf1f8;
  padding:104px 24px 72px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}

/* 层1：左侧「延伸网络」余韵 —— 淡金地球弧线 + 稀疏节点，呼应右侧网络，
   打破左侧大面积纯色的沉闷感，浓度极低、不抢文字 */
.hero::before{
  content:"";
  position:absolute;
  left:-60px;
  bottom:-60px;
  width:520px;
  height:420px;
  z-index:0;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 520 420'><g fill='none' stroke='%23c8a45c' stroke-width='0.7' opacity='0.22'><path d='M 40 380 A 260 260 0 0 1 500 120'/><path d='M 90 392 A 220 220 0 0 1 480 165'/></g><g stroke='%23a5d0f5' fill='none' stroke-width='0.7' opacity='0.26'><line x1='60' y1='300' x2='170' y2='220'/><line x1='170' y1='220' x2='300' y2='260'/><line x1='300' y1='260' x2='420' y2='180'/><line x1='170' y1='220' x2='240' y2='120'/><line x1='300' y1='260' x2='360' y2='140'/></g><g><circle cx='60' cy='300' r='3.5' fill='%23c8a45c' opacity='0.55'/><circle cx='170' cy='220' r='5' fill='%23c8a45c' opacity='0.75'/><circle cx='300' cy='260' r='4' fill='%23c8a45c' opacity='0.6'/><circle cx='420' cy='180' r='3.5' fill='%23c8a45c' opacity='0.55'/><circle cx='240' cy='120' r='3' fill='%23c8a45c' opacity='0.5'/><circle cx='360' cy='140' r='3' fill='%23c8a45c' opacity='0.5'/></g></svg>");
  background-repeat:no-repeat;
  background-position:left bottom;
  pointer-events:none;
  -webkit-mask-image:radial-gradient(circle at 30% 70%,#000 0%,#000 58%,transparent 94%);
  mask-image:radial-gradient(circle at 30% 70%,#000 0%,#000 58%,transparent 94%);
}

/* 层2：全球节点网络 SVG —— 限定在 Hero 右侧区域（径向 mask 让边缘自然渐隐）
   经纬网格（淡金） + 连接线（淡蓝） + 节点圆（金色） + 中心枢纽（金色同心圆）*/
.hero::after{
  content:"";
  position:absolute;
  right:-200px;
  top:50%;
  transform:translateY(-50%);
  width:840px;
  height:600px;
  z-index:0;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 820 600'><g stroke='%23c8a45c' fill='none' stroke-width='0.6' opacity='0.18'><ellipse cx='410' cy='300' rx='340' ry='44'/><ellipse cx='410' cy='300' rx='340' ry='100'/><ellipse cx='410' cy='300' rx='340' ry='156'/><ellipse cx='410' cy='300' rx='340' ry='212'/><ellipse cx='410' cy='300' rx='80' ry='280'/><ellipse cx='410' cy='300' rx='180' ry='280'/><ellipse cx='410' cy='300' rx='280' ry='280'/></g><g stroke='%23a5d0f5' fill='none' stroke-width='0.9' opacity='0.32'><path d='M 170,160 L 310,220 L 470,180 L 610,260 L 510,380 L 340,400 L 170,320 Z'/><line x1='310' y1='220' x2='340' y2='400'/><line x1='470' y1='180' x2='510' y2='380'/><line x1='610' y1='260' x2='510' y2='380'/><line x1='610' y1='260' x2='470' y2='180'/></g><g><circle cx='170' cy='160' r='4' fill='%23c8a45c' opacity='0.7'/><circle cx='310' cy='220' r='5' fill='%23c8a45c' opacity='0.85'/><circle cx='470' cy='180' r='5' fill='%23c8a45c' opacity='0.85'/><circle cx='610' cy='260' r='4' fill='%23c8a45c' opacity='0.7'/><circle cx='510' cy='380' r='5' fill='%23c8a45c' opacity='0.85'/><circle cx='340' cy='400' r='4' fill='%23c8a45c' opacity='0.7'/><circle cx='170' cy='320' r='3' fill='%23c8a45c' opacity='0.6'/></g><g transform='translate(410 300)'><circle r='52' fill='none' stroke='%23c8a45c' stroke-width='0.5' opacity='0.18'/><circle r='34' fill='none' stroke='%23c8a45c' stroke-width='0.5' opacity='0.32'/><circle r='22' fill='none' stroke='%23c8a45c' stroke-width='0.7' opacity='0.55'/><circle r='11' fill='%23c8a45c' opacity='0.85'/><circle r='5' fill='%23ffffff' opacity='0.7'/></g></svg>");
  background-repeat:no-repeat;
  background-position:center;
  pointer-events:none;
  transform-origin:center;
  animation:net-spin 90s linear infinite, net-breathe 9s ease-in-out infinite;
  -webkit-mask-image:radial-gradient(ellipse at 50% 50%,#000 0%,#000 55%,transparent 95%);
  mask-image:radial-gradient(ellipse at 50% 50%,#000 0%,#000 55%,transparent 95%);
}
/* 节点网络缓慢自转（像地球仪自转），关键帧里必须带 translateY(-50%) 以保持垂直居中 */
@keyframes net-spin{
  from{transform:translateY(-50%) rotate(0deg);}
  to{transform:translateY(-50%) rotate(360deg);}
}
/* 轻微呼吸：透明度 0.8 → 0.98，让网络有「脉动」的生气 */
@keyframes net-breathe{
  0%,100%{opacity:.8;}
  50%{opacity:.98;}
}

.hero-inner{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;}
.hero h1{
  font-size:30px;
  line-height:1.42;
  color:#fff;
  margin:0 0 12px;
  font-weight:700;
  letter-spacing:.3px;
  position:relative;
}
/* 标题上方的金色短装饰线（唯一金色点缀）*/
.hero h1::before{
  content:"";
  display:block;
  width:48px;
  height:2px;
  background:linear-gradient(90deg,var(--gold) 0%,rgba(200,164,92,.35) 60%,transparent);
  margin-bottom:18px;
}
.hero h1 .sub{display:block;font-size:14.5px;font-weight:400;color:#a9c6e2;margin-top:9px;letter-spacing:.2px;}
.hero .lead{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.13);
  border-radius:10px;
  padding:14px 19px;
  margin:20px 0 0;
  font-size:15.2px;
  line-height:1.74;
  color:#dae7f2;
  max-width:700px;
  backdrop-filter:blur(2px);
}
.hero .lead b{color:#bcdcfa;font-weight:600;}

/* 内容区 */
.content{max-width:var(--maxw);margin:0 auto;padding:40px 24px 80px;}
.content > h2:first-child{margin-top:18px;}

/* 段落标题：左侧渐变竖条（墨蓝→金）+ 浅蓝渐隐底 */
h2{font-size:20px;color:var(--navy);margin:48px 0 16px;padding:10px 16px;background:linear-gradient(90deg,#f3f7fb 0%,rgba(243,247,251,0) 88%);border-radius:0 6px 6px 0;position:relative;font-weight:700;letter-spacing:.2px;line-height:1.5;}
h2::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;background:linear-gradient(180deg,var(--navy-bright),var(--gold));border-radius:2px;}
h3{font-size:17px;color:var(--navy-mid);margin:28px 0 9px;font-weight:600;letter-spacing:.2px;}
p{margin:0 0 14px;}

/* 结论先行块 */
.concl{background:#fff;border-left:4px solid var(--navy-bright);border-radius:0 10px 10px 0;padding:16px 20px;margin:0 0 24px;font-size:15.8px;color:#123a5e;line-height:1.76;box-shadow:0 1px 2px rgba(15,45,92,.04),0 6px 18px rgba(15,45,92,.05);}
.concl b{color:var(--navy);}

/* 列表 */
ul.ticks{list-style:none;padding-left:0;margin:8px 0 22px;}
ul.ticks li{padding:7px 0 7px 28px;position:relative;line-height:1.78;}
ul.ticks li:before{content:"✓";position:absolute;left:0;color:var(--navy-bright);font-weight:700;}
ol.steps{counter-reset:s;list-style:none;padding-left:0;margin:0;}
ol.steps>li{counter-increment:s;position:relative;padding:16px 20px 16px 62px;background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;line-height:1.74;box-shadow:0 1px 2px rgba(15,45,92,.03),0 5px 16px rgba(15,45,92,.04);}
ol.steps>li:before{content:counter(s);position:absolute;left:16px;top:16px;width:30px;height:30px;background:linear-gradient(135deg,var(--navy-bright),var(--navy));color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;box-shadow:0 2px 8px rgba(15,45,92,.22);}
ol.steps>li b{color:var(--navy);}

/* 表格 */
.table-box{overflow-x:auto;margin:18px 0 26px;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 1px 2px rgba(15,45,92,.04),0 8px 24px rgba(15,45,92,.05);}
table{border-collapse:collapse;width:100%;font-size:14.3px;background:#fff;}
thead th{background:linear-gradient(180deg,#1d4e89,#0f2d5c);color:#fff;text-align:left;padding:13px 16px;font-weight:600;font-size:14px;letter-spacing:.3px;}
tbody td{padding:12px 16px;border-top:1px solid var(--line);vertical-align:top;line-height:1.72;}
tbody tr:nth-child(even){background:#f8fafc;}
tbody tr:hover{background:var(--soft);}

/* 提示卡 / 操作建议卡 */
.note{background:#f4f8fc;border:1px solid #dce7f2;border-left:4px solid var(--navy-bright);border-radius:10px;padding:14px 18px;margin:18px 0;font-size:14.5px;color:#123a5e;line-height:1.74;}
.note b{color:var(--navy);}
.advice{background:#eef4fa;border:1px solid #d3e1f0;border-left:4px solid var(--navy);border-radius:10px;padding:14px 18px;margin:18px 0;font-size:14.5px;color:#0f3350;line-height:1.74;}
.advice b{color:var(--navy);}

/* 首页服务模块卡 */
.modules{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin:22px 0 8px;}
.module{background:#fff;border:1px solid var(--line);border-top:3px solid var(--navy-bright);border-radius:12px;padding:20px;transition:.24s;box-shadow:0 1px 2px rgba(15,45,92,.04),0 6px 18px rgba(15,45,92,.05);}
.module:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(15,45,92,.12);border-top-color:var(--gold);}
.module .num{display:inline-flex;width:30px;height:30px;background:linear-gradient(135deg,var(--navy-bright),var(--navy));color:#fff;border-radius:8px;align-items:center;justify-content:center;font-weight:700;margin-bottom:10px;box-shadow:0 2px 8px rgba(15,45,92,.20);}
.module h3{margin:0 0 8px;font-size:16.5px;}
.module p{font-size:14px;color:var(--muted);margin:0 0 12px;line-height:1.72;}
.module a{font-weight:600;}

/* 权威背书 */
.endorse{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 24px;margin:18px 0;box-shadow:0 1px 2px rgba(15,45,92,.04),0 8px 24px rgba(15,45,92,.05);}
.endorse .logos{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:14px;font-weight:700;color:var(--navy);font-size:14.5px;align-items:center;}
.endorse .logos span{background:var(--soft);padding:6px 13px;border-radius:8px;border:1px solid var(--line);}

/* 政策动态条 */
.policy{border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin:14px 0;background:#fff;box-shadow:0 1px 2px rgba(15,45,92,.04),0 6px 18px rgba(15,45,92,.04);}
.policy .date{display:inline-block;background:linear-gradient(135deg,var(--navy-bright),var(--navy));color:#fff;font-size:12px;padding:3px 11px;border-radius:20px;margin-bottom:8px;letter-spacing:.3px;}
.policy h3{margin:0 0 6px;}

/* 图片与证书样本 */
.figure{margin:22px 0;text-align:center;}
.cert-img{max-width:100%;width:min(100%,680px);height:auto;border:1px solid var(--line);border-radius:12px;box-shadow:0 6px 28px rgba(15,45,92,.14);}
.img-caption{font-size:13px;color:var(--muted);margin-top:10px;}

/* FAQ */
.faq{background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px 20px;margin:12px 0;box-shadow:0 1px 2px rgba(15,45,92,.04),0 8px 24px rgba(15,45,92,.05);}
.faq details{padding:14px 0;border-bottom:1px solid var(--line);}
.faq details:last-child{border-bottom:none;}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy);list-style:none;position:relative;padding-right:26px;line-height:1.7;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:before{content:"+";position:absolute;right:0;color:var(--navy-bright);font-size:19px;font-weight:700;}
.faq details[open] summary:before{content:"−";}
.faq p{margin:10px 0 2px;color:#3d5169;line-height:1.78;}

/* 联系页 */
.contact-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;margin:22px 0 6px;align-items:start;}
.info-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 26px;box-shadow:0 1px 2px rgba(15,45,92,.04),0 8px 24px rgba(15,45,92,.05);}
.info-card h3{margin:0 0 5px;font-size:17px;}
.info-card .card-desc{font-size:14.5px;color:var(--muted);margin:0 0 6px;}
.contact-list{list-style:none;padding:0;margin:10px 0 0;}
.contact-list li{padding:14px 0;border-top:1px dashed var(--line);display:flex;gap:14px;align-items:baseline;flex-wrap:wrap;}
.contact-list li:first-child{border-top:none;padding-top:4px;}
.contact-list .lbl{flex:0 0 62px;color:var(--muted);font-size:14px;}
.contact-list .val{font-size:16.5px;color:var(--ink);font-weight:700;letter-spacing:.3px;}
.booking-box{position:relative;overflow:hidden;background:linear-gradient(135deg,#0a1f42 0%,#14355f 55%,#1d4e89 100%);border-radius:14px;padding:30px 24px;color:#fff;text-align:center;box-shadow:0 8px 28px rgba(15,45,92,.26);}
.booking-box::before{content:"";position:absolute;top:-30%;right:-25%;width:260px;height:260px;background:radial-gradient(circle,rgba(200,164,92,.22),transparent 65%);pointer-events:none;}
.booking-box h3{position:relative;color:#fff;margin:0 0 8px;font-size:19px;}
.booking-box p{position:relative;color:#c6d9ec;font-size:14.5px;margin:0 0 20px;line-height:1.72;}
.btn-book{position:relative;display:inline-block;background:#fff;color:var(--navy);font-weight:700;padding:13px 32px;border-radius:30px;font-size:15.5px;box-shadow:0 6px 18px rgba(0,0,0,.18);transition:.24s;}
.btn-book:hover{background:#f4f8fd;text-decoration:none;transform:translateY(-2px);}

/* 页脚 */
footer{margin-top:48px;color:var(--muted);font-size:13px;border-top:1px solid var(--line);padding-top:18px;}
.foot-contact{display:flex;flex-wrap:wrap;gap:14px 28px;align-items:center;justify-content:space-between;padding-bottom:15px;border-bottom:1px solid var(--line);margin-bottom:13px;}
.foot-brand{font-weight:700;color:var(--navy);font-size:15.5px;letter-spacing:.2px;}
.foot-info{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;font-size:14px;color:var(--muted);}
.foot-info a{color:var(--navy-bright);}
.foot-cta{background:linear-gradient(135deg,var(--navy-bright),var(--navy));color:#fff;font-weight:600;padding:9px 18px;border-radius:24px;font-size:14px;box-shadow:0 3px 10px rgba(15,45,92,.18);}
.foot-cta:hover{background:linear-gradient(135deg,var(--navy),var(--navy-deep));text-decoration:none;}
.foot-copy{font-size:13px;color:var(--muted);line-height:1.74;}

@media(max-width:860px){
  .contact-wrap{grid-template-columns:1fr;}
}
@media(max-width:760px){
  .hero{padding:60px 18px 44px;}
  .hero h1{font-size:22px;}
  .hero h1 .sub{font-size:13.5px;}
  .hero .lead{font-size:14.3px;padding:13px 15px;}
  .hero::before,.hero::after{display:none;}    /* 窄屏隐藏左右装饰，避免挤压文字 */
  .content{padding:30px 18px 64px;}
  .nav-inner{height:auto;padding:10px 16px;flex-direction:column;gap:6px;align-items:flex-start;}
  .topnav nav{gap:0;}
  .topnav nav a{padding:7px 10px;font-size:13.5px;}
  .brand .logo-img{height:42px;}
  h2{font-size:18px;padding:9px 14px;}
}

/* 尊重系统「减少动态效果」设置 */
@media(prefers-reduced-motion:reduce){
  .hero::after{animation:none;opacity:.92;}
  .module,.btn-book{transition:none;}
}