/* ===== 香香漫画 官网落地页样式 ===== */
:root{
  --primary:#FF5D7D;
  --primary-deep:#E84868;
  --primary-light:#FFE9EE;
  --dark:#23272F;
  --text-main:#2B2F38;
  --text-sub:#6B7280;
  --border:#F3E6EA;
  --bg:#FFF9FA;
  --card:#FFFFFF;
  --radius:16px;
  --shadow:0 10px 30px rgba(255,93,125,.10);
  --shadow-hover:0 16px 40px rgba(255,93,125,.18);
  --nav-h:64px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text-main);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;height:auto;width:100%}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

/* ===== 顶部导航 ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);background:rgba(255,249,250,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);transition:box-shadow .3s}
.nav.scrolled{box-shadow:0 6px 20px rgba(35,39,47,.08)}
.nav-inner{max-width:1200px;margin:0 auto;height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 24px;gap:20px}
.logo{font-size:22px;font-weight:800;color:var(--primary);letter-spacing:1px;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-menu a{font-size:14px;color:var(--text-main);padding:8px 10px;border-radius:8px;transition:color .25s,background .25s;white-space:nowrap}
.nav-menu a:hover{color:var(--primary);background:var(--primary-light)}
.btn{display:inline-flex;align-items:center;justify-content:center;text-align:center;font-size:15px;font-weight:600;border-radius:999px;padding:12px 28px;transition:transform .25s,box-shadow .25s,background .25s}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;box-shadow:0 8px 20px rgba(255,93,125,.3)}
.btn-outline{background:var(--card);color:var(--primary);border:2px solid var(--primary)}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,93,125,.35)}
.btn-nav{padding:9px 22px;font-size:14px}

/* ===== 通用区段 ===== */
.section{padding:80px 0}
.section-alt{background:var(--card)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.sec-title{font-size:32px;font-weight:800;text-align:center;color:var(--dark)}
.sec-sub{text-align:center;color:var(--text-sub);margin:10px 0 44px;font-size:15px}

/* ===== Hero区 ===== */
.hero{padding:calc(var(--nav-h) + 60px) 0 70px;background:linear-gradient(180deg,var(--primary-light) 0%,var(--bg) 100%)}
.hero-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:56px}
.hero-text{flex:1}
.hero-text h1{font-size:44px;font-weight:800;color:var(--dark);line-height:1.25}
.ver{display:inline-block;margin-left:10px;font-size:20px;font-weight:700;color:var(--primary);background:var(--card);border:1px solid var(--border);border-radius:999px;padding:2px 14px;vertical-align:middle}
.hero-desc{margin:22px 0 34px;font-size:16px;color:var(--text-sub);max-width:560px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-img{flex:1;max-width:440px}
.hero-img img{border-radius:var(--radius);box-shadow:var(--shadow)}

/* ===== 作品预览 ===== */
.works-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.work-card{border-radius:var(--radius);overflow:hidden;background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.work-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}

/* ===== 产品介绍 ===== */
.intro-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.intro-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:30px;transition:transform .3s,box-shadow .3s}
.intro-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);background:var(--card)}
.intro-card h3{font-size:20px;font-weight:700;color:var(--dark);margin-bottom:12px;padding-left:14px;border-left:4px solid var(--primary)}
.intro-card p{font-size:15px;color:var(--text-sub)}

/* ===== 核心功能 ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px 26px;text-align:center;transition:transform .3s,box-shadow .3s}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.feature-icon{width:64px;height:64px;margin:0 auto 18px;border-radius:20px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:30px}
.feature-card h3{font-size:18px;font-weight:700;color:var(--dark);margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-sub)}

/* ===== 优势对比 ===== */
.compare-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow)}
.compare-table{width:100%;border-collapse:collapse;min-width:560px}
.compare-table th,.compare-table td{padding:16px 22px;text-align:center;font-size:15px}
.compare-table th{font-weight:700;color:var(--dark);background:var(--primary-light);border-bottom:1px solid var(--border)}
.compare-table td{border-bottom:1px solid var(--border);color:var(--text-sub)}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table tbody tr:hover td{background:var(--bg)}
.compare-table .col-good{color:var(--primary-deep);font-weight:700}

/* ===== 平台数据 ===== */
.data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.data-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:36px 20px;text-align:center;transition:transform .3s,box-shadow .3s}
.data-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.data-num{font-size:40px;font-weight:800;color:var(--primary);line-height:1.2}
.data-label{margin-top:8px;font-size:15px;color:var(--text-sub)}

/* ===== 用户评价 ===== */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:transform .3s,box-shadow .3s}
.review-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.review-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;font-size:20px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.review-user{display:flex;flex-direction:column}
.review-user .name{font-size:15px;font-weight:700;color:var(--dark)}
.review-user .stars{font-size:14px;color:#FFB400;letter-spacing:2px}
.review-text{font-size:14px;color:var(--text-sub)}

/* ===== 版本更新 ===== */
.update-card{max-width:860px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:34px 38px;box-shadow:var(--shadow)}
.update-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px;padding-bottom:18px;border-bottom:1px dashed var(--border)}
.update-ver{font-size:26px;font-weight:800;color:var(--primary)}
.update-date{font-size:15px;color:var(--text-sub);background:var(--primary-light);padding:4px 14px;border-radius:999px}
.update-list li{position:relative;padding:9px 0 9px 26px;font-size:15px;color:var(--text-main)}
.update-list li::before{content:"";position:absolute;left:4px;top:17px;width:8px;height:8px;border-radius:50%;background:var(--primary)}

/* ===== FAQ ===== */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;transition:box-shadow .3s}
.faq-item.active{box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 26px;font-size:16px;font-weight:600;color:var(--dark);text-align:left}
.faq-arrow{position:relative;width:10px;height:10px;flex-shrink:0;transition:transform .3s}
.faq-arrow::before,.faq-arrow::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-arrow::before{left:0;top:4px;width:10px;height:2px}
.faq-arrow::after{left:4px;top:0;width:2px;height:10px}
.faq-item.active .faq-arrow{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 26px 22px;font-size:15px;color:var(--text-sub)}

/* ===== 下载区域 ===== */
.download-sec{padding:60px 0 90px}
.download-card{max-width:860px;margin:0 auto;text-align:center;background:linear-gradient(180deg,var(--primary-light) 0%,var(--card) 100%);border:1px solid var(--border);border-radius:24px;padding:56px 40px;box-shadow:var(--shadow)}
.download-card h2{font-size:36px;font-weight:800;color:var(--dark)}
.download-card h2 .ver{font-size:20px}
.download-meta{margin:18px 0 30px;font-size:14px;color:var(--text-sub)}
.download-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.download-tip{margin-top:26px;font-size:14px;color:var(--primary-deep)}

/* ===== 页脚 ===== */
.footer{background:var(--dark);color:#B9BEC8;text-align:center;padding:26px 20px;font-size:14px}
.footer a{color:#fff}
.footer a:hover{color:var(--primary)}

/* ===== 返回顶部 ===== */
.back-top{position:fixed;right:28px;bottom:32px;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-deep));box-shadow:0 8px 20px rgba(255,93,125,.35);opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .3s,visibility .3s,transform .3s;z-index:99}
.back-top::before{content:"";position:absolute;left:50%;top:50%;width:10px;height:10px;border-top:2px solid #fff;border-left:2px solid #fff;transform:translate(-50%,-30%) rotate(45deg)}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}

/* ===== 平板适配 ===== */
@media (max-width:992px){
  .nav-menu{display:none}
  .sec-title{font-size:28px}
  .works-grid,.features-grid,.reviews-grid{grid-template-columns:repeat(2,1fr)}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .hero-text h1{font-size:36px}
}

/* ===== 移动端适配 ===== */
@media (max-width:768px){
  .nav-inner{padding:0 20px}
  .btn-nav{padding:8px 16px;font-size:13px}
  .section{padding:56px 0}
  .container{padding:0 20px}
  .hero{padding:calc(var(--nav-h) + 40px) 0 56px}
  .hero-inner{flex-direction:column;gap:34px;padding:0 20px;text-align:center}
  .hero-text h1{font-size:30px}
  .ver{margin-left:0;margin-top:8px;font-size:16px}
  .hero-desc{margin:18px auto 28px;font-size:15px}
  .hero-btns{flex-direction:column;width:100%}
  .hero-btns .btn{width:100%}
  .sec-title{font-size:26px}
  .sec-sub{margin-bottom:32px}
  .works-grid{gap:14px}
  .intro-grid,.features-grid,.reviews-grid{grid-template-columns:1fr;gap:16px}
  .data-grid{gap:14px}
  .data-num{font-size:30px}
  .compare-table{min-width:0}
  .compare-table th,.compare-table td{padding:10px 6px;font-size:12.5px;white-space:normal}
  .update-card{padding:26px 20px}
  .update-head{flex-direction:column;align-items:flex-start}
  .download-card{padding:44px 20px}
  .download-card h2{font-size:27px}
  .download-card h2 .ver{font-size:16px}
  .download-meta{font-size:12px;margin:14px 0 24px;white-space:nowrap}
  .download-btns{flex-direction:column;width:100%}
  .download-btns .btn{width:100%}
  .back-top{right:16px;bottom:22px;width:42px;height:42px}
}