/* ===== 海同快住官网 公共样式 ===== */
:root{
  --primary:#1667e3;
  --primary-dark:#0e4bb0;
  --primary-light:#e8f1fe;
  --accent:#00b894;
  --text:#1f2937;
  --text-light:#6b7280;
  --bg:#f7f9fc;
  --card:#ffffff;
  --border:#e5eaf1;
  --radius:14px;
  --shadow:0 4px 24px rgba(22,103,227,.08);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.7;
}
img{max-width:100%;}
a{text-decoration:none;color:inherit;}
.container{max-width:1160px;margin:0 auto;padding:0 24px;}

/* ===== 顶部导航 ===== */
header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--primary);}
.logo .mark{
  width:36px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--primary),#4d9bff);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;font-weight:800;
}
.nav-links{display:flex;gap:26px;font-size:15px;color:var(--text-light);}
.nav-links a:hover{color:var(--primary);}
.nav-links a.active{color:var(--primary);font-weight:600;}
.nav-cta{
  background:var(--primary);color:#fff !important;padding:8px 20px;border-radius:20px;font-weight:500;
}
.nav-cta:hover{background:var(--primary-dark);}
@media(max-width:900px){.nav-links{display:none;}}

/* ===== 首页 Hero ===== */
.hero{
  background:linear-gradient(135deg,#0e3d8f 0%,#1667e3 55%,#3d8bff 100%);
  color:#fff;padding:96px 0 110px;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:rgba(255,255,255,.06);
}
.hero::before{
  content:"";position:absolute;right:80px;bottom:-160px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.05);
}
.hero-inner{position:relative;z-index:2;display:flex;align-items:center;gap:48px;flex-wrap:wrap;}
.hero-text{flex:1 1 480px;min-width:300px;}
.hero h1{font-size:40px;line-height:1.3;margin-bottom:18px;}
.hero p.sub{font-size:18px;opacity:.9;margin-bottom:34px;max-width:520px;}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  display:inline-block;padding:13px 32px;border-radius:26px;font-size:16px;font-weight:600;
  transition:.2s;cursor:pointer;border:none;
}
.btn-white{background:#fff;color:var(--primary);}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.18);}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6);}
.btn-outline:hover{background:rgba(255,255,255,.12);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--primary);border:1.5px solid var(--primary);}
.btn-ghost:hover{background:var(--primary-light);}
.hero-cards{flex:1 1 320px;display:grid;grid-template-columns:1fr 1fr;gap:14px;min-width:280px;}
.hero-card{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius);padding:18px 16px;font-size:14px;
}
.hero-card b{display:block;font-size:15px;margin-bottom:6px;}
@media(max-width:820px){.hero h1{font-size:30px;}}

/* ===== 子页面 Banner ===== */
.page-hero{
  background:linear-gradient(135deg,#0e3d8f 0%,#1667e3 60%,#3d8bff 100%);
  color:#fff;padding:64px 0;position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-100px;width:300px;height:300px;border-radius:50%;
  background:rgba(255,255,255,.07);
}
.page-hero h1{font-size:34px;margin-bottom:10px;position:relative;z-index:2;}
.page-hero p{opacity:.88;font-size:16px;max-width:640px;position:relative;z-index:2;}
.breadcrumb{font-size:13px;opacity:.75;margin-bottom:14px;position:relative;z-index:2;}
.breadcrumb a:hover{text-decoration:underline;}

/* ===== 通用 section ===== */
section{padding:80px 0;}
section.tight{padding:56px 0;}
.sec-head{text-align:center;margin-bottom:52px;}
.sec-head .tag{
  display:inline-block;font-size:13px;color:var(--primary);background:var(--primary-light);
  padding:4px 14px;border-radius:14px;margin-bottom:14px;letter-spacing:1px;
}
.sec-head h2{font-size:32px;margin-bottom:12px;}
.sec-head p{color:var(--text-light);font-size:16px;max-width:680px;margin:0 auto;}
.sec-head.left{text-align:left;margin-bottom:36px;}
.sec-head.left p{margin:0;}

/* ===== 产品卡片 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
@media(max-width:960px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.grid-3,.grid-2{grid-template-columns:1fr;}}
.card{
  background:var(--card);border-radius:var(--radius);padding:0;
  box-shadow:var(--shadow);border:1px solid var(--border);
  transition:.25s;overflow:hidden;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(22,103,227,.14);}
.card .pic{height:210px;background:var(--primary-light);overflow:hidden;}
.card .pic img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s;}
.card:hover .pic img{transform:scale(1.05);}
.card .body{padding:24px 26px 28px;flex:1;display:flex;flex-direction:column;}
.card h3{font-size:19px;margin-bottom:12px;}
.card ul{list-style:none;color:var(--text-light);font-size:14.5px;}
.card ul li{padding-left:22px;position:relative;margin-bottom:9px;}
.card ul li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700;}
.card .num{font-size:13px;color:#9aa7b8;font-weight:600;letter-spacing:2px;margin-bottom:4px;display:block;}
.card .more{
  margin-top:auto;padding-top:16px;font-size:14px;color:var(--primary);font-weight:600;
}
.card .more:hover{color:var(--primary-dark);}

/* 纯文字卡片（无图） */
.card.plain{padding:30px 26px;}
.card.plain .icon{
  width:54px;height:54px;border-radius:13px;background:var(--primary-light);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;font-size:26px;
}

/* ===== 产品详情（锚点小导航 + 交替图文） ===== */
.anchor-nav{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:16px;
}
.anchor-nav a{
  background:#fff;border:1px solid var(--border);border-radius:20px;
  padding:8px 20px;font-size:14px;color:var(--text-light);transition:.2s;
}
.anchor-nav a:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light);}
.product-detail{
  display:flex;gap:44px;align-items:center;flex-wrap:wrap;
  background:#fff;border-radius:var(--radius);border:1px solid var(--border);
  box-shadow:var(--shadow);padding:40px;margin-bottom:36px;
  scroll-margin-top:90px;
}
.product-detail .p-pic{flex:1 1 360px;min-width:280px;}
.product-detail .p-pic img{
  width:100%;border-radius:10px;border:1px solid var(--border);object-fit:cover;
}
.product-detail .p-text{flex:1 1 400px;min-width:280px;}
.product-detail .p-text .num{font-size:13px;color:#9aa7b8;font-weight:600;letter-spacing:2px;}
.product-detail .p-text h3{font-size:24px;margin:6px 0 14px;}
.product-detail .p-text ul{list-style:none;color:var(--text-light);font-size:15px;margin-bottom:18px;}
.product-detail .p-text ul li{padding-left:24px;position:relative;margin-bottom:10px;}
.product-detail .p-text ul li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700;}
.product-detail.reverse{flex-direction:row-reverse;}
@media(max-width:820px){.product-detail{padding:24px;}.product-detail.reverse{flex-direction:row;}}

/* ===== 流程 ===== */
.flow-wrap{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:40px 32px;border:1px solid var(--border);}
.flow{display:flex;gap:0;flex-wrap:wrap;justify-content:space-between;}
.flow-step{flex:1 1 160px;text-align:center;position:relative;padding:0 10px;min-width:140px;margin-bottom:16px;}
.flow-step .dot{
  width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--primary),#4d9bff);
  color:#fff;font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center;
  margin:0 auto 14px;box-shadow:0 6px 16px rgba(22,103,227,.28);
}
.flow-step h4{font-size:16px;margin-bottom:6px;}
.flow-step p{font-size:13px;color:var(--text-light);}
.flow-step:not(:last-child)::after{
  content:"→";position:absolute;right:-12px;top:14px;color:#b9c6da;font-size:22px;
}
@media(max-width:820px){.flow-step:not(:last-child)::after{display:none;}}

/* ===== PMS 表格 ===== */
.table-wrap{background:#fff;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);overflow-x:auto;}
table.pms{width:100%;border-collapse:collapse;min-width:640px;}
table.pms th,table.pms td{padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--border);}
table.pms th{background:var(--primary-light);color:var(--primary-dark);font-weight:600;white-space:nowrap;}
table.pms tr:last-child td{border-bottom:none;}
table.pms tr:hover td{background:#f4f8ff;}
.pms-badge{
  display:inline-block;background:#e6f7f1;color:var(--accent);border-radius:12px;
  padding:2px 12px;font-size:12.5px;font-weight:600;
}
.pms-badge.blue{background:var(--primary-light);color:var(--primary);}

/* ===== 案例 ===== */
.case-card{
  background:#fff;border-radius:var(--radius);border:1px solid var(--border);
  box-shadow:var(--shadow);padding:32px;display:flex;flex-direction:column;
}
.case-card .case-tag{
  align-self:flex-start;background:var(--primary-light);color:var(--primary);
  font-size:12.5px;padding:3px 12px;border-radius:12px;margin-bottom:14px;font-weight:600;
}
.case-card h3{font-size:19px;margin-bottom:6px;}
.case-card .meta{font-size:13px;color:#9aa7b8;margin-bottom:14px;}
.case-card p{color:var(--text-light);font-size:14.5px;margin-bottom:14px;}
.case-card .result{
  margin-top:auto;background:var(--bg);border:1px dashed var(--border);border-radius:10px;
  padding:12px 16px;font-size:14px;
}
.case-card .result b{color:var(--primary);}

/* ===== 解决方案 ===== */
.solution-banner{
  display:flex;gap:40px;align-items:center;flex-wrap:wrap;
  background:#fff;border-radius:var(--radius);border:1px solid var(--border);
  box-shadow:var(--shadow);padding:40px;margin-bottom:32px;scroll-margin-top:90px;
}
.solution-banner .s-pic{flex:1 1 340px;min-width:260px;}
.solution-banner .s-pic img{width:100%;border-radius:10px;border:1px solid var(--border);}
.solution-banner .s-text{flex:1 1 420px;min-width:280px;}
.solution-banner h3{font-size:23px;margin-bottom:6px;}
.solution-banner .suit{font-size:13.5px;color:var(--primary);margin-bottom:14px;font-weight:600;}
.solution-banner .pain{
  background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:14px 18px;
  font-size:14px;color:#9a5b13;margin-bottom:14px;
}
.solution-banner .pain b{color:#c2660a;}
.solution-banner ul{list-style:none;color:var(--text-light);font-size:14.5px;margin-bottom:6px;}
.solution-banner ul li{padding-left:24px;position:relative;margin-bottom:9px;}
.solution-banner ul li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700;}
.solution-banner.reverse{flex-direction:row-reverse;}
@media(max-width:820px){.solution-banner{padding:24px;}.solution-banner.reverse{flex-direction:row;}}

/* ===== 数据亮点 ===== */
.stats{background:linear-gradient(135deg,#0e3d8f,#1667e3);color:#fff;border-radius:var(--radius);padding:44px 30px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;}
@media(max-width:720px){.stats-grid{grid-template-columns:repeat(2,1fr);}}
.stat b{font-size:34px;display:block;}
.stat span{font-size:14px;opacity:.85;}

/* ===== 部署流程（关于页） ===== */
.deploy-list{counter-reset:step;list-style:none;max-width:760px;margin:0 auto;}
.deploy-list li{
  counter-increment:step;position:relative;padding:0 0 28px 64px;
}
.deploy-list li::before{
  content:counter(step);position:absolute;left:0;top:0;width:42px;height:42px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),#4d9bff);color:#fff;font-weight:700;
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(22,103,227,.28);
}
.deploy-list li::after{
  content:"";position:absolute;left:20px;top:48px;bottom:6px;width:2px;background:var(--border);
}
.deploy-list li:last-child::after{display:none;}
.deploy-list h4{font-size:16px;margin-bottom:4px;}
.deploy-list p{font-size:14px;color:var(--text-light);}

/* ===== 联系我们 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
@media(max-width:720px){.contact-grid{grid-template-columns:1fr;}}
.contact-box{background:#fff;border-radius:var(--radius);padding:32px;border:1px solid var(--border);box-shadow:var(--shadow);}
.contact-box h3{margin-bottom:16px;font-size:19px;}
.contact-line{display:flex;align-items:center;gap:12px;margin-bottom:14px;color:var(--text-light);font-size:15px;}
.contact-line .ico{width:38px;height:38px;border-radius:10px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:18px;flex:none;}

/* ===== CTA 条 ===== */
.cta-strip{
  background:linear-gradient(135deg,#0e3d8f,#1667e3);border-radius:var(--radius);
  color:#fff;padding:44px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.cta-strip h3{font-size:24px;margin-bottom:6px;}
.cta-strip p{opacity:.85;font-size:15px;}

/* ===== PMS 标签墙（首页） ===== */
.pms-tags{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;max-width:760px;margin:0 auto;}
.pms-tag{
  background:#fff;border:1px solid var(--border);border-radius:10px;padding:12px 26px;
  font-size:15px;font-weight:600;color:var(--text);box-shadow:0 2px 10px rgba(0,0,0,.04);
}
.pms-tag span{color:var(--primary);margin-right:6px;}

/* ===== 关于页 ===== */
.about-intro{display:flex;gap:44px;align-items:center;flex-wrap:wrap;}
.about-intro .a-text{flex:1 1 460px;min-width:300px;}
.about-intro .a-text p{color:var(--text-light);font-size:15.5px;margin-bottom:14px;}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media(max-width:820px){.value-grid{grid-template-columns:1fr;}}
.value-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.value-card .icon{font-size:30px;margin-bottom:12px;}
.value-card h4{font-size:17px;margin-bottom:8px;}
.value-card p{font-size:14px;color:var(--text-light);}

footer{background:#101828;color:#9aa7b8;padding:36px 0;font-size:14px;text-align:center;}
footer .foot-links{margin-bottom:14px;}
footer .foot-links a{margin:0 12px;color:#9aa7b8;}
footer .foot-links a:hover{color:#fff;}
footer .foot-logo{color:#fff;font-weight:700;font-size:17px;margin-bottom:8px;}

/* ===== 技术方案（文章） ===== */
.article{
  background:#fff;border-radius:var(--radius);border:1px solid var(--border);
  box-shadow:var(--shadow);padding:48px 56px;max-width:860px;margin:0 auto;
}
@media(max-width:720px){.article{padding:28px 20px;}}
.article h1{font-size:26px;line-height:1.5;margin-bottom:10px;}
.article .a-meta{font-size:13.5px;color:#9aa7b8;margin-bottom:32px;padding-bottom:18px;border-bottom:1px solid var(--border);}
.article h2{
  font-size:19px;margin:34px 0 14px;padding:8px 14px;color:var(--primary-dark);
  background:var(--primary-light);border-left:4px solid var(--primary);border-radius:4px;
}
.article p{font-size:15px;line-height:1.85;color:var(--text);margin-bottom:16px;text-align:justify;}
.article ul,.article ol{margin:0 0 16px;padding-left:6px;list-style:none;}
.article ul li,.article ol li{
  font-size:15px;line-height:1.85;margin-bottom:9px;padding-left:20px;position:relative;color:var(--text);
}
.article ul li::before{content:"•";position:absolute;left:2px;color:var(--primary);font-weight:700;}
.article ol{counter-reset:art;}
.article ol li{counter-increment:art;padding-left:28px;}
.article ol li::before{
  content:counter(art) ".";position:absolute;left:2px;color:var(--primary);font-weight:700;
}
.article strong{font-weight:600;color:var(--primary-dark);}
.article blockquote{
  margin:20px 0;padding:14px 18px;background:var(--primary-light);
  border-left:4px solid var(--primary);border-radius:4px 8px 8px 4px;
}
.article blockquote p{margin:0;color:var(--primary-dark);font-weight:500;}
.article figure{margin:24px 0;}
.article figure img{display:block;width:100%;border-radius:10px;border:1px solid var(--border);}
.article figcaption{text-align:center;font-size:12.5px;color:#9aa7b8;margin-top:8px;}
.article table{width:100%;border-collapse:collapse;margin:16px 0 24px;font-size:14px;}
.article th,.article td{border:1px solid var(--border);padding:10px 14px;text-align:left;line-height:1.6;}
.article th{background:var(--primary-light);color:var(--primary-dark);font-weight:600;}
.article .a-foot{
  margin-top:36px;padding-top:22px;border-top:1px solid var(--border);
  font-size:14px;color:var(--text-light);
}
.article-nav{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:28px auto 0;max-width:860px;}
.article-nav a{
  background:#fff;border:1px solid var(--border);border-radius:10px;padding:12px 20px;
  font-size:14px;color:var(--primary);max-width:48%;transition:.2s;
}
.article-nav a:hover{border-color:var(--primary);background:var(--primary-light);}
.article-card .digest{font-size:14.5px;color:var(--text-light);margin-bottom:16px;}
.article-card .a-tags{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap;}
.article-card .a-tags span{
  font-size:12px;background:var(--primary-light);color:var(--primary);
  padding:3px 12px;border-radius:12px;
}
.tech-banner{
  background:#fff;border-radius:var(--radius);border:1px solid var(--border);
  box-shadow:var(--shadow);overflow:hidden;margin-bottom:40px;
}
.tech-banner img{display:block;width:100%;}

/* ===== 在线客服 ===== */
#chat-fab{
  position:fixed;right:26px;bottom:30px;z-index:200;width:60px;height:60px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),#3d8bff);color:#fff;border:none;cursor:pointer;
  font-size:26px;box-shadow:0 8px 24px rgba(22,103,227,.4);transition:.2s;
  display:flex;align-items:center;justify-content:center;
}
#chat-fab:hover{transform:scale(1.08);}
#chat-fab .badge{
  position:absolute;top:-4px;right:-4px;background:#ff4d4f;color:#fff;font-size:11px;
  width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;
}
#chat-panel{
  position:fixed;right:26px;bottom:104px;z-index:210;width:340px;max-width:calc(100vw - 40px);
  background:#fff;border-radius:16px;box-shadow:0 16px 48px rgba(0,0,0,.18);
  display:none;flex-direction:column;overflow:hidden;
}
#chat-panel.open{display:flex;}
.chat-head{
  background:linear-gradient(135deg,var(--primary),#3d8bff);color:#fff;padding:14px 18px;
  display:flex;align-items:center;justify-content:space-between;
}
.chat-head b{font-size:15px;}
.chat-head small{display:block;font-size:12px;opacity:.85;}
#chat-close{background:none;border:none;color:#fff;font-size:20px;cursor:pointer;line-height:1;}
#chat-body{height:300px;overflow-y:auto;padding:16px;background:#f4f7fb;display:flex;flex-direction:column;gap:10px;}
.msg{max-width:80%;padding:9px 13px;border-radius:12px;font-size:13.5px;line-height:1.6;}
.msg.bot{background:#fff;border:1px solid var(--border);border-top-left-radius:4px;align-self:flex-start;}
.msg.user{background:var(--primary);color:#fff;border-top-right-radius:4px;align-self:flex-end;}
.chat-quick{padding:8px 12px 4px;display:flex;flex-wrap:wrap;gap:6px;background:#f4f7fb;}
.chat-quick button{
  border:1px solid var(--primary);background:#fff;color:var(--primary);font-size:12px;
  padding:4px 10px;border-radius:14px;cursor:pointer;
}
.chat-quick button:hover{background:var(--primary-light);}
#chat-input-area{display:flex;border-top:1px solid var(--border);}
#chat-input{flex:1;border:none;padding:12px 14px;font-size:13.5px;outline:none;}
#chat-send{background:var(--primary);color:#fff;border:none;padding:0 20px;cursor:pointer;font-size:14px;}
#chat-send:hover{background:var(--primary-dark);}