/* ============================================================
   南宁OPC — 全局公共样式 (common.css)
   适用范围：所有页面 (index, community, news, office, activity, about, tax)
   ============================================================ */

/* ========== CSS Reset & Variables ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --blue-900:#0a1628;
  --blue-800:#0d2240;
  --blue-700:#0f3460;
  --blue-600:#165a9c;
  --blue-500:#1a73e8;
  --blue-400:#4a90e2;
  --blue-300:#7ab8f5;
  --blue-200:#a8d4ff;
  --blue-100:#d6eaff;
  --blue-50:#eef5fc;
  --accent:#00c9db;
  --gold:#f0a500;
  --green:#10b981;
  --red:#ef4444;
  --orange:#f59e0b;
  --purple:#8b5cf6;
  --white:#ffffff;
  --gray-50:#f8fafc;
  --gray-100:#f1f5f9;
  --gray-200:#e2e8f0;
  --gray-300:#cbd5e1;
  --gray-400:#94a3b8;
  --gray-500:#64748b;
  --gray-600:#475569;
  --gray-700:#334155;
  --gray-800:#1e293b;
  --gray-900:#0f172a;
  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:16px;
  --radius-xl:24px;
  --nav-bg:#ffffff;
  --nav-text:#222222;
  --shadow-sm:0 1px 3px rgba(0,0,0,.08);
  --shadow-md:0 4px 16px rgba(0,0,0,.1);
  --shadow-lg:0 8px 32px rgba(0,0,0,.12);
  --shadow-xl:0 16px 48px rgba(13,34,64,.15);
  --transition:all .3s cubic-bezier(.4,0,.2,1);
  --max-width:1200px;
  --pc-max-width:1200px;
}

/* ========== Base ========== */
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--gray-800);
  background:var(--white);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}
section{padding:90px 0}

/* ========== Navigation (白底黑字) ========== */
header{
  position:sticky;
  top:0;
  z-index:999;
  box-shadow:0 1px 3px rgba(0,0,0,0.08);
  background:var(--nav-bg);
}
.nav-container{
  max-width:var(--pc-max-width);
  margin:0 auto;
  padding:0 16px;
}
.navbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:70px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:inherit;
  font-weight:600;
  font-size:18px;
}
.logo img{
  height:36px;
  width:auto;
  object-fit:contain;
}
.navbar .title{ font-size:22px;}
/* PC横向菜单 */
.nav-menu{
  display:flex;
  list-style:none;
  height:100%;
}
.nav-item{
  position:relative;
  height:100%;
  display:flex;
  align-items:center;
  padding:0 16px;
  cursor:pointer;
  font-size:14px;
}
.nav-item>a{
  color:inherit;
  text-decoration:none;
  display:flex;
  align-items:center;
  height:100%;
}
.nav-item:hover{
  background:#f7f8fa;
}
.nav-item:hover .submenu{
  visibility:visible;
  opacity:1;
  transform:translateY(0);
  pointer-events:auto;
}
.navbar .active{color:var(--blue-500);background:var(--blue-50)}
/* 二级下拉菜单 PC */
.submenu{
  position:absolute;
  top:100%;
  left:0;
  min-width:180px;
  background: #FFF;
  list-style:none;
  padding:8px 0;
  visibility:hidden;
  opacity:0;
  transform:translateY(8px);
  transition:0.2s ease;
  pointer-events:none;
  border-radius:4px;
  box-shadow:0 8px 20px rgba(0,0,0,0.12);
  border:1px solid var(--border-color);
}
.submenu li{
  padding:0 16px;
}
.submenu li a{
  display:block;
  padding:10px 0;
  color:#333;
  text-decoration:none;
}
.submenu li a:hover{
  color:var(--hover-color);
  padding-left:4px;
  transition:0.15s;
}
/* 移动端汉堡按钮 */
.hamburger{
  display:none;
  flex-direction:column;
  gap:5px;
  padding:8px;
  cursor:pointer;
}
.hamburger span{
  width:24px;
  height:2px;
  background:#222;
  border-radius:1px;
  transition:0.25s;
}
/* 移动端菜单面板 */
.mobile-menu{
  position:absolute;
  top:64px;
  left:0;
  right:0;
  background:var(--nav-bg);
  max-height:0;
  overflow:hidden;
  transition:max-height 0.3s ease;
  box-shadow:0 4px 6px rgba(0,0,0,0.05);
}
.mobile-menu.open{
  max-height:800px;
}
.mobile-menu ul{
  list-style:none;
}
.mobile-menu li{
  border-bottom:1px solid var(--border-color);
}
.mobile-menu a{
  display:block;
  padding:14px 16px;
  color:#333;
  text-decoration:none;
}
.mobile-menu .submenu{
  position:static;
  background:#f9fafb;
  box-shadow:none;
  transform:none;
  visibility:visible;
  opacity:1;
  padding-left:16px;
  display:none;
  border:none;
}
.mobile-menu .submenu.open{
  display:block;
}
.arrow{
  margin-left:6px;
  font-size:8px;
  transition:0.2s;
  color:var(--gray-400);
}
.arrow.rotate{
  transform:rotate(180deg);
}
@media(max-width:768px){
  .nav-menu{
    display:none;
  }
  .hamburger{
    display:flex;
  }
}


/* ========== Buttons ========== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:10px;font-size:1rem;font-weight:600;
  cursor:pointer;transition:var(--transition);border:none;
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue-500),var(--accent));
  color:var(--white);box-shadow:0 4px 16px rgba(26,115,232,.25);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(26,115,232,.35)}
.btn-outline{
  background:rgba(255,255,255,.08);color:var(--white);
  border:1px solid rgba(255,255,255,.18);
}
.btn-outline:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.3)}

/* ========== Section Common ========== */
.section-header{text-align:center;margin-bottom:56px}
.section-label{
  display:inline-block;font-size:.8rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.12em;color:var(--blue-500);
  background:var(--blue-50);padding:6px 16px;border-radius:20px;margin-bottom:16px;
}
.section-header h2{
  font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;
  color:var(--gray-900);margin-bottom:12px;
}
.section-header p{
  color:var(--gray-500);max-width:750px;margin:0 auto;font-size:1rem;
}

/* ========== Service Cards ========== */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.service-card{
  background:var(--white);border-radius:var(--radius-lg);
  padding:36px 28px;box-shadow:var(--shadow-sm);transition:var(--transition);
  border:1px solid var(--gray-200);position:relative;overflow:hidden;
}
.service-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--blue-500),var(--accent));
  transform:scaleX(0);transition:transform .4s ease;
}
.service-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.service-card:hover::before{transform:scaleX(1)}
.service-icon{
  width:56px;height:56px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;margin-bottom:20px;
}
.service-icon.c1{background:linear-gradient(135deg,#e3f2fd,#bbdefb);color:var(--blue-600)}
.service-icon.c2{background:linear-gradient(135deg,#e0f7fa,#b2ebf2);color:#00838f}
.service-icon.c3{background:linear-gradient(135deg,#e8f5e9,#c8e6c9);color:#2e7d32}
.service-icon.c4{background:linear-gradient(135deg,#fff3e0,#ffe0b2);color:#e65100}
.service-icon.c5{background:linear-gradient(135deg,#f3e5f5,#e1bee7);color:#6a1b9a}
.service-icon.c6{background:linear-gradient(135deg,#fce4ec,#f8bbd0);color:#880e4f}
.service-card h3{font-size:1.15rem;font-weight:700;color:var(--gray-900);margin-bottom:10px}
.service-card p{font-size:.92rem;color:var(--gray-500);line-height:1.7}
.service-card .card-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  color:var(--blue-500);font-weight:600;font-size:.9rem;transition:var(--transition);
}
.service-card .card-link:hover{gap:10px;color:var(--blue-600)}

/* ========== News Cards (home & list) ========== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{
  background:var(--white);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--transition);
  border:1px solid var(--gray-200);
}
.news-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.news-img{
  height:200px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--blue-100),var(--blue-200));
}
.news-img .placeholder{
  width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  font-size:3rem;color:var(--blue-300);
}
.news-tag{
  position:absolute;top:14px;left:14px;
  background:var(--blue-500);color:var(--white);padding:4px 12px;
  border-radius:20px;font-size:.75rem;font-weight:600;
}
.news-body{padding:22px}
.news-date{font-size:.8rem;color:var(--gray-400);margin-bottom:8px}
.news-body h3{font-size:1.05rem;font-weight:700;color:var(--gray-900);margin-bottom:10px;line-height:1.5}
.news-body h3:hover{color:var(--blue-500)}
.news-body p{font-size:.88rem;color:var(--gray-500);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ========== Activity Cards (home & list) ========== */
.activity-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.act-card{
  background:var(--white);border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--gray-200);transition:var(--transition);
  display:flex;flex-direction:column;
}
.act-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px);border-color:var(--blue-200)}
.act-card-img{
  position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(135deg,var(--blue-100),var(--blue-200));
}
.act-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.act-card:hover .act-card-img img{transform:scale(1.08)}
.act-card-img .act-status{
  position:absolute;top:14px;right:14px;
  padding:4px 12px;border-radius:20px;font-size:.72rem;font-weight:700;
  backdrop-filter:blur(8px);
}
.act-status.upcoming{background:rgba(39,174,96,.9);color:var(--white)}
.act-status.ongoing{background:rgba(231,76,60,.9);color:var(--white)}
.act-status.ended{background:rgba(100,116,139,.85);color:var(--white)}
.act-card-img .act-date-badge{
  position:absolute;bottom:14px;left:14px;
  background:rgba(255,255,255,.95);border-radius:var(--radius-md);
  padding:8px 14px;display:flex;flex-direction:column;align-items:center;
  box-shadow:var(--shadow-md);min-width:56px;
}
.act-date-badge .day{font-size:1.4rem;font-weight:800;color:var(--gray-900);line-height:1}
.act-date-badge .month{font-size:.68rem;color:var(--gray-500);margin-top:2px}
.act-card-body{padding:22px 24px;flex:1;display:flex;flex-direction:column}
.act-card-body .act-tag{
  display:inline-block;align-self:flex-start;
  padding:3px 12px;border-radius:20px;font-size:.72rem;font-weight:600;margin-bottom:12px;
}
.tag-roadshow{background:#e3f2fd;color:#1565c0}
.tag-training{background:#e8f5e9;color:#2e7d32}
.tag-meetup{background:#fff3e0;color:#e65100}
.tag-competition{background:#f3e5f5;color:#6a1b9a}
.tag-online{background:#e0f7fa;color:#00838f}
.act-card-body h3{font-size:1.05rem;font-weight:700;color:var(--gray-900);line-height:1.5;margin-bottom:10px}
.act-card-body .act-desc{
  font-size:.86rem;color:var(--gray-500);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.act-card-meta{
  display:flex;flex-direction:column;gap:8px;margin-bottom:16px;
  padding-top:16px;border-top:1px solid var(--gray-100);
}
.act-card-meta .meta-row{display:flex;align-items:center;gap:8px;font-size:.82rem;color:var(--gray-500)}
.act-card-meta .meta-row .meta-icon{font-size:.9rem;flex-shrink:0}
.act-card-footer{display:flex;align-items:center;justify-content:space-between;margin-top:auto}
.act-card-footer .act-price{font-size:.95rem;font-weight:700;color:var(--blue-600)}
.act-card-footer .act-price.free{color:var(--green)}
.act-card-footer .act-link{
  font-size:.85rem;font-weight:600;color:var(--blue-500);
  display:flex;align-items:center;gap:4px;transition:var(--transition);
}
.act-card-footer .act-link:hover{gap:8px;color:var(--blue-600)}
.act-card-footer .act-link.ended-link{color:var(--gray-400);cursor:default}
.act-card-footer .act-link.ended-link:hover{gap:4px}

/* ========== Office Space Cards (home & list) ========== */
.office-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:4px}
.office-item{
  display:flex;align-items:flex-start;gap:12px;padding:14px;
  background:var(--white);border-radius:var(--radius-md);
  border:1px solid var(--gray-200);transition:var(--transition);
}
.office-item:hover{border-color:var(--blue-200);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.office-item .oi-icon{
  width:40px;height:40px;border-radius:10px;
  background:var(--blue-50);display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;flex-shrink:0;
}
.office-item .oi-text h4{font-size:.9rem;font-weight:700;color:var(--gray-800);margin-bottom:2px}
.office-item .oi-text span{font-size:.8rem;color:var(--gray-400)}

.office-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:64px}
.office-card{
  background:var(--white);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:var(--transition);
  border:1px solid var(--gray-200);
}
.office-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.office-card-img{height:170px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;font-size:3.2rem}
.office-card-img.c1{background:linear-gradient(135deg,#e3f2fd,#bbdefb)}
.office-card-img.c2{background:linear-gradient(135deg,#e0f7fa,#b2ebf2)}
.office-card-img.c3{background:linear-gradient(135deg,#fff3e0,#ffe0b2)}
.office-card-img.c4{background:linear-gradient(135deg,#e8f5e9,#c8e6c9)}
.office-card-img.c5{background:linear-gradient(135deg,#f3e5f5,#e1bee7)}
.office-card-img.c6{background:linear-gradient(135deg,#fce4ec,#f8bbd0)}
.office-card-img .oc-tag{
  position:absolute;top:12px;left:12px;
  background:rgba(255,255,255,.9);padding:3px 10px;border-radius:12px;
  font-size:.72rem;font-weight:600;color:var(--gray-700);
}
.office-card-body{padding:22px}
.office-card-body h4{font-size:1.1rem;font-weight:700;color:var(--gray-900);margin-bottom:6px}
.office-card-body p{font-size:.85rem;color:var(--gray-500);line-height:1.6;margin-bottom:14px}
.office-card-body .oc-price{font-size:1.25rem;font-weight:800;color:var(--blue-600)}
.office-card-body .oc-price .unit{font-size:.78rem;color:var(--gray-400);font-weight:500}

/* ========== Tax Cards ========== */
.tax-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.tax-card{
  text-align:center;padding:40px 28px;border-radius:var(--radius-lg);
  background:var(--gray-50);transition:var(--transition);
  border:1px solid transparent;
}
.tax-card:hover{
  background:var(--white);border-color:var(--blue-200);
  box-shadow:var(--shadow-lg);transform:translateY(-4px);
}
.tax-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:50%;
  background:var(--blue-50);display:flex;align-items:center;justify-content:center;
  font-size:1.8rem;
}
.tax-card h3{font-size:1.1rem;font-weight:700;color:var(--gray-900);margin-bottom:10px}
.tax-card p{font-size:.9rem;color:var(--gray-500);line-height:1.7}

/* ========== CTA Section ========== */
.cta-section{
  background:linear-gradient(160deg,var(--blue-800),var(--blue-600));
  text-align:center;padding:80px 20px;position:relative;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at center,rgba(0,201,219,.15),transparent 70%);
}
.cta-section h2{
  font-size:2rem;font-weight:800;color:var(--white);position:relative;z-index:1;
}
.cta-section p{
  color:rgba(255,255,255,.7);margin:16px auto 32px;max-width:650px;
  position:relative;z-index:1;
}
.cta-section .btn{position:relative;z-index:1}

/* 页脚基础样式 */
.footer{
    background-color:#0f1c32;
    color:#b8c2d2;
    padding:40px 20px;
}
.footer-container{
    max-width:1200px;
    margin:0 auto;
    display:grid;
    /* PC四栏布局 */
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap:40px;
}

/* 栏目标题 */
.footer-col h3{
    color:#ffffff;
    font-size:18px;
    margin-bottom:10px;
    font-weight:bold;
}

/* 第一栏：品牌介绍 */
.footer-brand p{
    font-size:14px;
    line-height:1.8;
    margin-bottom:32px;
}
.social-item{
    width:64px;
    height:54px;
    background:#202e46;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    color:#fff;
    font-size:14px;
}

/* 导航列表通用 */
.footer-list li{
    font-size:14px;
    margin-bottom:5px;
}
.footer-list a:hover{
    color:#fff;
    transition:0.2s;
}

/* 联系我们栏目 */
.contact-item{
    display:flex;
    align-items:flex-start;
    gap:12px;
    font-size:14px;
    margin-bottom:15px;
    line-height:0.6;
}
.contact-item .icon{
    color:#70a8ff;
    font-size:12px;
    margin-top:3px;
}

/* 底部分割版权栏 */
.footer-copyright{
    max-width:1200px;
    margin:30px auto 0;
    padding-top:30px;
    border-top:1px solid #24344e;
    text-align:center;
    font-size:17px;
    line-height:1.6;
	background-color:#0f1c32;
}
/* 底部版权栏 通用 */
.foot-bottom {
  max-width:1200px;
    margin:30px auto 0;
    padding-top:30px;
    border-top:1px solid #24344e;
    text-align:left;
    font-size:14px;
    line-height:1.8;
}
.foot-bottom .container {
  flex-direction: column;
  gap: 10px;
}
.city-links a {
  margin: 0 6px;
}

/* =========== 移动端适配：768px以下 =========== */
@media (max-width:768px){
    /* 隐藏快速导航、服务项目 */
    .hide-mobile{
        display: none !important;
    }
    /* 移动端改为单列，彻底避免挤压显示不全 */
    .footer-container{
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .footer{
        padding:40px 16px;
		
    }
    .footer-col h3{
        font-size:16px;
        margin-bottom:10px;
    }
    .footer-brand p{
        font-size:16px;
    }
    .social-item{
        width:48px;
        height:48px;
        font-size:16px;
    }
    .contact-item{
        font-size:16px;
        margin-bottom:20px;
    }
    .footer-copyright{
        margin-top:35px;
        font-size:14px;
        padding-top:20px;
    }
}

/* ========== Responsive ========== */
@media (max-width: 1024px){
  .services-grid,.news-grid,.tax-grid,.activity-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1;text-align:center;margin-bottom:4px}
  .footer-brand p{max-width:520px;margin-left:auto;margin-right:auto}
  .footer-social{justify-content:center}
  .office-cards{grid-template-columns:repeat(2,1fr)}
  .policy-grid{grid-template-columns:1fr}
}
@media (max-width: 768px){
  /* ===== 移动端导航面板（全站统一：白底深字，覆盖子页面深色导航） ===== */
  .nav .nav-links{
    display:flex!important;position:fixed!important;
    top:68px;left:0;right:0;bottom:0;
    background:rgba(255,255,255,.98)!important;
    flex-direction:column;align-items:stretch;
    padding:16px 20px;gap:2px;
    transform:translateX(100%);transition:transform .35s ease;
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    overflow-y:auto;z-index:999;
  }
  .nav .nav-links.open{transform:translateX(0)!important}
  .nav .nav-links > a,
  .nav .nav-links > .nav-item > .nav-link{
    color:var(--gray-700)!important;
    background:transparent!important;
    padding:14px 16px!important;font-size:1rem!important;
    border-radius:var(--radius-md);justify-content:space-between;
  }
  .nav .nav-links > a::after,
  .nav .nav-links > .nav-item > .nav-link::after{display:none!important}
  .nav .nav-toggle{display:flex!important;position:relative;z-index:1001}
  .nav .nav-toggle span{background:var(--gray-800)!important}
  .nav .nav-logo{color:var(--gray-900)!important}
  .nav .nav-logo img{height:32px}
  /* 子菜单折叠展开 */
  .nav .nav-dropdown{
    display:none;position:static;transform:none;
    opacity:1;visibility:visible;
    box-shadow:none;border:none;padding:0 0 4px 14px;min-width:auto;
    background:transparent;margin-top:2px;
  }
  .nav .nav-item.expanded > .nav-dropdown{display:block}
  .nav .nav-dropdown::before{display:none}
  .nav .nav-dropdown a{
    padding:10px 16px;font-size:.85rem;border-radius:var(--radius-sm);
    background:var(--gray-50)!important;color:var(--gray-600)!important;
  }
  .nav .nav-dropdown a:hover{background:var(--blue-50)!important;color:var(--blue-500)!important}
  .nav .nav-dropdown a .dd-icon{background:var(--blue-50)!important}
  .nav .dropdown-arrow{display:inline-block;font-size:.55rem;transition:transform .25s ease;color:var(--gray-400)!important}
  .nav .nav-item.expanded > .nav-link .dropdown-arrow{transform:rotate(180deg)}
  section{padding:60px 0}
  .services-grid,.news-grid,.tax-grid,.activity-grid{grid-template-columns:1fr}
  .office-list{grid-template-columns:1fr}
  .office-cards{grid-template-columns:1fr}
  .footer{padding:28px 0;background:var(--white);color:var(--gray-600)}
  .footer-grid{display:none}
  .footer-bottom{display:none}
  .footer-mobile{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
  }
  .footer-mobile-info{flex:1;min-width:0}
  .footer-mobile-copy{
    font-size:.75rem;color:var(--gray-500);margin-bottom:6px;line-height:1.5;
  }
  .footer-mobile-desc{
    font-size:.82rem;color:var(--gray-600);line-height:1.6;margin-bottom:4px;
  }
  .footer-mobile-phone{
    display:flex;align-items:center;gap:10px;margin-top:10px;flex-wrap:wrap;
  }
  .footer-mobile-phone .phone-number{
    font-size:1.45rem;font-weight:800;color:var(--blue-900);letter-spacing:.5px;
  }
  .btn-call{
    display:inline-flex;align-items:center;justify-content:center;
    padding:5px 14px;background:#ff4d4f;color:#fff;border-radius:20px;
    font-size:.8rem;font-weight:500;text-decoration:none;white-space:nowrap;
    transition:var(--transition);
  }
  .btn-call:hover{background:#ff7875;transform:translateY(-1px)}
  .footer-mobile-qr{
    width:92px;height:92px;flex-shrink:0;
    background:var(--white);border:1px solid var(--gray-200);border-radius:8px;
    padding:4px;overflow:hidden;
  }
  .footer-mobile-qr img{width:100%;height:100%;object-fit:contain;display:block}
  .policy-card{flex-direction:column}
}
@media (max-width: 480px){
  .nav-logo{font-size:1.1rem}
  /* ===== Footer 小屏优化 ===== */
  .footer{padding:24px 0}
  .footer-mobile{gap:14px}
  .footer-mobile-copy{font-size:.72rem}
  .footer-mobile-desc{font-size:.78rem}
  .footer-mobile-phone{gap:8px;margin-top:8px}
  .footer-mobile-phone .phone-number{font-size:1.15rem}
  .btn-call{padding:4px 12px;font-size:.75rem}
  .footer-mobile-qr{width:76px;height:76px}
}