/* ============================================================
   模板4：紫色数据风 - 黑客24小时在线接单
   主色：紫色  布局：全屏数据Hero + 2列大卡片 + 进度条步骤 + 对比表
   ============================================================ */
:root{
    --t4-primary:#7b4fc4;
    --t4-primary-dark:#6640a8;
    --t4-accent:#a855f7;
    --t4-dark:#2a1a4a;
    --t4-text:#333;
    --t4-muted:#7a6a8a;
    --t4-bg:#faf6fb;
    --t4-bg-2:#f3edfb;
    --t4-border:#ece4f7;
    --t4-white:#fff;
    --t4-radius:14px;
    --t4-shadow:0 10px 30px rgba(123,79,196,.12);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;font-size:15px;line-height:1.7;color:var(--t4-text);background:var(--t4-bg);-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;transition:color .2s;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}

/* ---------- 容器 ---------- */
.tpl4_container{max-width:1200px;margin:0 auto;padding:0 20px;}

/* ---------- 顶部导航 ---------- */
.tpl4_site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 2px 14px rgba(42,26,74,.06);}
.tpl4_nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;}
.tpl4_site-logo{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:var(--t4-dark);}
.tpl4_logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--t4-primary),var(--t4-accent));color:#fff;font-size:18px;}
.tpl4_logo-text{letter-spacing:.5px;}
.tpl4_nav-list{display:flex;gap:30px;}
.tpl4_nav-link{font-size:15px;color:#554;padding:6px 0;position:relative;}
.tpl4_nav-link:hover{color:var(--t4-primary);}
.tpl4_nav-link.tpl4_active{color:var(--t4-primary);font-weight:600;}
.tpl4_nav-link.tpl4_active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--t4-primary);border-radius:2px;}
.tpl4_nav-cta{padding:9px 22px;background:var(--t4-primary);color:#fff;border-radius:24px;font-size:14px;font-weight:600;box-shadow:0 4px 14px rgba(123,79,196,.3);}
.tpl4_nav-cta:hover{background:var(--t4-primary-dark);}
.tpl4_hamburger{display:none;width:40px;height:40px;background:transparent;border:none;cursor:pointer;padding:8px;flex-direction:column;justify-content:space-between;align-items:center;}
.tpl4_hamburger span{display:block;width:24px;height:3px;background:var(--t4-dark);border-radius:2px;transition:transform .3s,opacity .3s;}
.tpl4_hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.tpl4_hamburger.is-open span:nth-child(2){opacity:0;}
.tpl4_hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.tpl4_mobile-menu{display:none;background:#fff;border-top:1px solid var(--t4-border);padding:16px 20px;}
.tpl4_mobile-menu[hidden]{display:none;}
.tpl4_mobile-list li{border-bottom:1px solid #f5f0fa;}
.tpl4_mobile-list a{display:block;padding:14px 4px;font-size:15px;color:#333;}
.tpl4_mobile-list a:hover{color:var(--t4-primary);}
.tpl4_mobile-cta{display:block;margin-top:16px;padding:12px;text-align:center;background:var(--t4-primary);color:#fff;border-radius:24px;font-size:14px;font-weight:600;}

/* ---------- Hero 主横幅 ---------- */
.tpl4_hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#f3edfb 0%,#fbeef7 50%,#f0f0fb 100%);}
.tpl4_hero-bg{position:absolute;inset:0;background:radial-gradient(circle at 70% 30%,rgba(123,79,196,.1),transparent 50%),radial-gradient(circle at 30% 70%,rgba(168,85,247,.08),transparent 50%);}
.tpl4_hero-inner{display:flex;align-items:center;gap:50px;padding:70px 0 50px;position:relative;z-index:1;}
.tpl4_hero-content{flex:1;}
.tpl4_hero-badge{display:inline-block;padding:6px 16px;background:rgba(123,79,196,.1);color:var(--t4-primary);border-radius:20px;font-size:13px;font-weight:600;margin-bottom:20px;}
.tpl4_hero-title{font-size:42px;line-height:1.3;color:var(--t4-dark);font-weight:800;margin-bottom:20px;}
.tpl4_hero-accent{color:var(--t4-primary);}
.tpl4_hero-desc{font-size:16px;color:#5a4a6a;margin-bottom:28px;max-width:540px;}
.tpl4_hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.tpl4_hero-btn{display:inline-block;padding:13px 30px;border-radius:30px;font-size:15px;font-weight:600;transition:all .2s;}
.tpl4_hero-btn-primary{background:var(--t4-primary);color:#fff;box-shadow:0 6px 18px rgba(123,79,196,.3);}
.tpl4_hero-btn-primary:hover{background:var(--t4-primary-dark);transform:translateY(-2px);}
.tpl4_hero-btn-ghost{background:transparent;color:var(--t4-primary);border:2px solid var(--t4-primary);}
.tpl4_hero-btn-ghost:hover{background:var(--t4-primary);color:#fff;}
.tpl4_hero-visual{flex:0 0 420px;}
.tpl4_hero-img{width:100%;height:auto;border-radius:var(--t4-radius);box-shadow:var(--t4-shadow);}
.tpl4_hero-stats{background:rgba(255,255,255,.7);border-top:1px solid rgba(123,79,196,.12);padding:24px 0;position:relative;z-index:1;}
.tpl4_stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.tpl4_stat{text-align:center;}
.tpl4_stat strong{display:block;font-size:28px;color:var(--t4-primary);font-weight:800;}
.tpl4_stat span{font-size:13px;color:var(--t4-muted);}

/* ---------- 区块通用 ---------- */
.tpl4_section{padding:80px 0;}
.tpl4_section-head{text-align:center;max-width:680px;margin:0 auto 50px;}
.tpl4_section-eyebrow{display:inline-block;font-size:13px;letter-spacing:3px;color:var(--t4-primary);font-weight:700;margin-bottom:12px;}
.tpl4_section-title{font-size:32px;color:var(--t4-dark);font-weight:800;margin-bottom:14px;}
.tpl4_section-desc{font-size:15px;color:var(--t4-muted);}

/* ---------- 核心服务 - 2列大卡片 ---------- */
.tpl4_service{background:#fff;}
.tpl4_service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.tpl4_service-card{display:flex;gap:24px;background:var(--t4-bg);border:1px solid var(--t4-border);border-radius:var(--t4-radius);padding:36px 32px;transition:transform .25s,box-shadow .25s,border-color .25s;}
.tpl4_service-card:hover{transform:translateY(-6px);box-shadow:var(--t4-shadow);border-color:var(--t4-primary);}
.tpl4_service-ico{flex-shrink:0;width:64px;height:64px;display:flex;align-items:center;justify-content:center;font-size:32px;background:linear-gradient(135deg,rgba(123,79,196,.15),rgba(168,85,247,.08));border-radius:16px;}
.tpl4_service-body h3{font-size:20px;color:var(--t4-dark);margin-bottom:10px;}
.tpl4_service-body p{font-size:14px;color:var(--t4-muted);line-height:1.7;margin-bottom:14px;}
.tpl4_service-link{font-size:14px;color:var(--t4-primary);font-weight:600;}
.tpl4_service-link:hover{color:var(--t4-primary-dark);}

/* ---------- 接单流程 - 进度条步骤 ---------- */
.tpl4_process{background:var(--t4-bg);}
.tpl4_stepper{position:relative;display:flex;justify-content:space-between;gap:10px;padding-top:20px;}
.tpl4_step-bar{position:absolute;top:44px;left:8%;right:8%;height:4px;background:var(--t4-border);border-radius:2px;}
.tpl4_step-item{position:relative;flex:1;text-align:center;z-index:1;}
.tpl4_step-dot{width:48px;height:48px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(135deg,var(--t4-primary),var(--t4-accent));color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;box-shadow:0 6px 16px rgba(123,79,196,.3);border:4px solid var(--t4-bg);}
.tpl4_step-item h3{font-size:16px;color:var(--t4-dark);margin-bottom:6px;}
.tpl4_step-item p{font-size:13px;color:var(--t4-muted);line-height:1.6;}

/* ---------- 平台优势 - 对比表 ---------- */
.tpl4_advantage{background:#fff;}
.tpl4_compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:900px;margin:0 auto;}
.tpl4_compare-col{border-radius:var(--t4-radius);overflow:hidden;border:1px solid var(--t4-border);}
.tpl4_compare-head{padding:24px;text-align:center;color:#fff;}
.tpl4_compare-ours{background:linear-gradient(135deg,var(--t4-primary),var(--t4-accent));}
.tpl4_compare-other{background:#999;}
.tpl4_compare-head h3{font-size:22px;margin-bottom:4px;}
.tpl4_compare-head span{font-size:13px;opacity:.9;}
.tpl4_compare-list{padding:8px 0;}
.tpl4_compare-list li{padding:14px 24px;font-size:14px;color:#555;border-bottom:1px solid var(--t4-border);display:flex;align-items:center;gap:10px;}
.tpl4_compare-list li:last-child{border-bottom:none;}
.tpl4_check{color:#27c93f;font-weight:700;}
.tpl4_cross{color:#e74c3c;font-weight:700;}

/* ---------- 常见问题 - 手风琴 ---------- */
.tpl4_faq{background:var(--t4-bg);}
.tpl4_faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.tpl4_faq-item{background:#fff;border-radius:var(--t4-radius);border-left:4px solid var(--t4-primary);box-shadow:var(--t4-shadow);overflow:hidden;}
.tpl4_faq-item summary{padding:18px 24px;font-size:16px;font-weight:600;color:var(--t4-dark);cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;}
.tpl4_faq-item summary::after{content:"+";font-size:20px;color:var(--t4-primary);transition:transform .2s;}
.tpl4_faq-item[open] summary::after{transform:rotate(45deg);}
.tpl4_faq-item p{padding:0 24px 20px;font-size:14px;color:var(--t4-muted);line-height:1.8;}

/* ---------- 联系方式 - 图标网格 ---------- */
.tpl4_contact{background:#fff;}
.tpl4_contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.tpl4_contact-item{display:block;background:var(--t4-bg);border:1px solid var(--t4-border);border-radius:var(--t4-radius);padding:36px 20px;text-align:center;transition:all .25s;}
.tpl4_contact-item:hover{transform:translateY(-6px);border-color:var(--t4-primary);box-shadow:var(--t4-shadow);}
.tpl4_contact-ico{font-size:40px;margin-bottom:14px;}
.tpl4_contact-item h3{font-size:18px;color:var(--t4-dark);margin-bottom:6px;}
.tpl4_contact-item p{font-size:13px;color:var(--t4-muted);}

/* ---------- 页脚 ---------- */
.tpl4_site-footer{background:var(--t4-dark);color:#c8b8d8;padding:60px 0 0;}
.tpl4_footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;}
.tpl4_footer-title{color:#fff;font-size:16px;margin-bottom:18px;font-weight:600;}
.tpl4_footer-desc{font-size:14px;line-height:1.8;color:#9a8ab0;}
.tpl4_footer-links li{margin-bottom:10px;}
.tpl4_footer-links a{font-size:14px;color:#9a8ab0;}
.tpl4_footer-links a:hover{color:#fff;}
.tpl4_footer-flink{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding:30px 0;}
.tpl4_footer-flink ul{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;}
.tpl4_footer-flink li a{font-size:13px;color:#9a8ab0;}
.tpl4_footer-flink li a:hover{color:#fff;}
.tpl4_footer-ad{margin:20px 0;text-align:center;}
.tpl4_footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:24px 0;margin-top:20px;text-align:center;font-size:13px;color:#7a6a8a;}
.tpl4_footer-bottom a{color:var(--t4-accent);}
.tpl4_footer-bottom p{margin-bottom:6px;}

/* ---------- 响应式 ---------- */
@media (max-width:992px){
    .tpl4_hero-inner{flex-direction:column;text-align:center;padding:50px 0 30px;}
    .tpl4_hero-desc{margin:0 auto 28px;}
    .tpl4_hero-actions{justify-content:center;}
    .tpl4_hero-visual{flex:0 0 auto;width:100%;max-width:460px;}
    .tpl4_service-grid{grid-template-columns:1fr;}
    .tpl4_compare{grid-template-columns:1fr;}
    .tpl4_contact-grid{grid-template-columns:repeat(2,1fr);}
    .tpl4_footer-inner{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
    .tpl4_site-nav{display:none;}
    .tpl4_nav-cta{display:none;}
    .tpl4_hamburger{display:flex;}
    .tpl4_mobile-menu.is-open{display:block;}
    .tpl4_hero-title{font-size:28px;}
    .tpl4_section{padding:50px 0;}
    .tpl4_section-title{font-size:24px;}
    .tpl4_stats-row{grid-template-columns:repeat(2,1fr);}
    .tpl4_stepper{flex-direction:column;align-items:flex-start;gap:24px;padding-left:20px;}
    .tpl4_step-bar{display:none;}
    .tpl4_step-item{display:flex;align-items:center;gap:16px;text-align:left;}
    .tpl4_step-dot{margin:0;}
}
@media (max-width:480px){
    .tpl4_hero-title{font-size:24px;}
    .tpl4_contact-grid{grid-template-columns:1fr;}
    .tpl4_footer-inner{grid-template-columns:1fr;gap:30px;}
}