/* =====================================================================
   一版过 · 站点公共样式（首页 / 系统公告 / 帮助中心 共用）
   由各页面内联 <style> 统一抽取而来，后续请在此文件统一维护。
   页面骨架：顶部导航 .site-nav / 页脚 .footer / 页面容器 .page、.section
   ===================================================================== */

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { font-family: "Microsoft YaHei", "PingFang SC", sans-serif; scroll-behavior: smooth; }
body {
  color: #d8dee9; min-height: 100vh;
  /* 环境光：多层径向渐变铺底，营造通透的层次感 */
  background:
    radial-gradient(1000px 560px at 88% -8%, rgba(123,47,247,.18), transparent 62%),
    radial-gradient(820px 480px at 4% 8%, rgba(0,212,255,.12), transparent 60%),
    radial-gradient(900px 520px at 50% 120%, rgba(123,47,247,.10), transparent 60%),
    #0a0c12;
  background-attachment: fixed;
}
a { text-decoration: none; }

/* ================= 顶部导航 ================= */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  background: linear-gradient(180deg, rgba(14,17,26,.88), rgba(10,12,18,.72));
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 6px 30px rgba(0,0,0,.35);
  height: 64px; line-height: 64px;
}
.site-nav .inner {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between; height: 100%;
}
.brand { display: flex; align-items: center; color: #fff; font-size: 20px; font-weight: 700; letter-spacing: 1px; }
.brand .logo {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; margin-right: 10px; border-radius: 10px;
  background: linear-gradient(135deg, #7b2ff7, #00d4ff);
  color: #fff; font-size: 20px;
}
.brand .brand-text { display: inline-block; line-height: 1.25; }
.brand .brand-text small { display: block; font-size: 12px; color: #6b7a90; font-weight: 400; letter-spacing: .5px; margin-top: 2px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: #aab3c5; font-size: 14px; transition: color .2s; }
.nav-links a:hover { color: #00d4ff; }
.nav-links a.active { color: #00d4ff; }
.nav-btns { display: flex; align-items: center; gap: 12px; }
.nav-btns .layui-btn { border-radius: 6px; }

/* 导航栏系统公告入口 + 红点徽标 */
.nav-announce { position: relative; display: inline-flex; align-items: center; gap: 5px; }
.nav-announce .layui-icon { font-size: 15px; }
.announce-badge {
  position: absolute; top:4px; right: -12px; min-width: 17px; height: 17px;
  padding: 0 4px; border-radius: 10px; line-height: 17px; text-align: center;
  background: linear-gradient(135deg, #ff5e62, #ffb300); color: #fff; font-size: 11px; font-style: normal;
  box-shadow: 0 0 8px rgba(255,94,98,.6); animation: badgePulse 2s infinite;
}
@keyframes badgePulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.12); } }

/* ================= 页面主体 ================= */
.page { max-width: 900px; margin: 0 auto; padding: 116px 20px 40px; }
.page-head { text-align: center; margin-bottom: 38px; }
.page-head h1 { font-size: 30px; font-weight: 800; color: #fff; letter-spacing: 1px; }
.page-head .line { width: 64px; height: 3px; margin: 18px auto 0; border-radius: 3px; background: linear-gradient(90deg, #7b2ff7, #00d4ff); box-shadow: 0 0 12px rgba(0,212,255,.55); }
.page-head p { font-size: 14px; color: #6b7a90; margin-top: 14px; }

/* 首页通用区块 */
.section { max-width: 1200px; margin: 0 auto; padding: 84px 20px; position: relative; }
.section::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 260px; height: 2px; border-radius: 2px; opacity: .75;
  background: linear-gradient(90deg, transparent, rgba(0,212,255,.55), rgba(123,47,247,.55), transparent);
}
.section-head { text-align: center; margin-bottom: 46px; }
.section-head h2 { font-size: 30px; font-weight: 800; color: #fff; letter-spacing: 1px; }
.section-head p { font-size: 14px; color: #6b7a90; margin-top: 12px; }
.section-head .line { width: 64px; height: 3px; margin: 18px auto 0; border-radius: 3px; background: linear-gradient(90deg, #7b2ff7, #00d4ff); box-shadow: 0 0 12px rgba(0,212,255,.55); }

/* 返回链接（详情页） */
.back-link { display: inline-flex; align-items: center; gap: 6px; color: #8b96a8; font-size: 13px; margin-bottom: 20px; transition: color .2s; }
.back-link:hover { color: #00d4ff; }

/* 文章卡片（详情页正文） */
.article {
  border-radius: 16px; padding: 36px 40px;
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.09);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 28px rgba(0,0,0,.25);
}
.article .cover { max-width: 100%; border-radius: 10px; margin-bottom: 24px; display: block; }
.article h1 { font-size: 26px; font-weight: 800; color: #fff; line-height: 1.5; }
.article .meta { display: flex; align-items: center; gap: 18px; font-size: 12px; color: #6b7a90; margin: 16px 0 24px; padding-bottom: 20px; border-bottom: 1px dashed rgba(255,255,255,.08); flex-wrap: wrap; }
.article .meta span { display: inline-flex; align-items: center; gap: 5px; }
.article .meta .cate { color: #00d4ff; border: 1px solid rgba(0,212,255,.4); padding: 1px 10px; border-radius: 20px; }
.article .content { font-size: 15px; color: #c7d0de; line-height: 2; word-break: break-word; }
.article .content p { margin-bottom: 14px; }
.article .content img { max-width: 100%; border-radius: 8px; }
.article .content a { color: #00d4ff; }
.article .content strong { color: #fff; }
.article .content h2, .article .content h3 { color: #fff; margin: 22px 0 12px; }
.article .content ul, .article .content ol { padding-left: 22px; margin-bottom: 14px; }
.article .content li { margin-bottom: 6px; }

/* 上一篇 / 下一篇 */
.prevnext { display: flex; justify-content: space-between; gap: 16px; margin-top: 22px; flex-wrap: wrap; }
.prevnext a {
  flex: 1; min-width: 240px; padding: 14px 18px; border-radius: 12px; font-size: 13px; color: #aab3c5;
  background: linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.09);
  transition: all .2s ease;
}
.prevnext a:hover { color: #00d4ff; border-color: rgba(0,212,255,.55); }
.prevnext a small { display: block; font-size: 11px; color: #6b7a90; margin-bottom: 4px; }
.prevnext a span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.prevnext a.disabled { opacity: .4; cursor: default; pointer-events: none; }

/* 分页 */
.pager { display: flex; justify-content: center; align-items: center; gap: 12px; margin-top: 40px; flex-wrap: wrap; }
.pager a, .pager span.pg {
  min-width: 40px; height: 40px; line-height: 40px; padding: 0 16px; text-align: center;
  border-radius: 8px; font-size: 13px; color: #aab3c5;
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.09);
  transition: all .2s ease;
}
.pager a:hover { color: #fff; border-color: rgba(0,212,255,.6); background: rgba(0,212,255,.12); }
.pager .pg-info { font-size: 13px; color: #6b7a90; }

/* 空状态 */
.help-empty, .announce-empty { text-align: center; color: #7f8ca0; padding: 80px 20px; background: rgba(255,255,255,.03); border: 1px dashed rgba(255,255,255,.12); border-radius: 14px; }
.help-empty .layui-icon, .announce-empty .layui-icon { font-size: 54px; color: #3a4558; display: block; margin-bottom: 14px; }

/* ================= 首页 Hero ================= */
.hero {
  position: relative; overflow: hidden;
  padding-top: 64px; /* 顶部导航高度 */
  background: #000;
}
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 72px;
  background: linear-gradient(180deg, transparent, rgba(10,12,18,.72));
  pointer-events: none; z-index: 5;
}
.layui-carousel > [carousel-item] > * { background-color: #000000 !important; }
.hero-carousel, .hero-carousel [carousel-item] > * { height: 620px !important; }
.hero-slide {
  height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 40px 20px;
  background:
    radial-gradient(720px 420px at 50% 30%, rgba(123,47,247,.16), transparent 62%),
    radial-gradient(720px 420px at 50% 78%, rgba(0,212,255,.10), transparent 62%);
}
.hero .title { font-size: 46px; font-weight: 800; color: #fff; letter-spacing: 2px; line-height: 1.3; }
.hero .title span { background: linear-gradient(90deg, #7b2ff7, #00d4ff); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero .sub { margin: 22px auto 0; max-width: 640px; font-size: 15px; color: #8b96a8; line-height: 1.9; }
.hero .cta { margin-top: 38px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero .layui-btn { height: 48px; line-height: 48px; padding: 0 42px; border-radius: 8px; font-size: 16px; letter-spacing: 2px; }
.hero-stat { margin-top: 46px; display: flex; justify-content: center; gap: 60px; flex-wrap: wrap; }
.hero-stat .s-item { text-align: center; }
.hero-stat .s-num { font-size: 30px; font-weight: 800; color: #fff; }
.hero-stat .s-num em { font-style: normal; color: #00d4ff; }
.hero-stat .s-label { font-size: 13px; color: #6b7a90; margin-top: 6px; }

.hero-slide .lead { font-size: 16px; color: #00d4ff; letter-spacing: 4px; margin-top: 16px; }
.materials {
  width: 100%; max-width: 900px;
  display: flex; justify-content: center; align-items: stretch;
  gap: 18px; flex-wrap: wrap; margin: 34px auto 0;
}
.mat-item {
  width: 156px; padding: 22px 12px; text-align: center;
  background: linear-gradient(160deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  border: 1px solid rgba(0,212,255,.28); border-radius: 14px;
  transition: all .25s ease; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 20px rgba(0,0,0,.25);
}
.mat-item:hover { transform: translateY(-4px); border-color: rgba(0,212,255,.65); background: linear-gradient(160deg, rgba(255,255,255,.12), rgba(255,255,255,.04)); box-shadow: 0 14px 30px rgba(0,0,0,.4); }
.mat-item .mat-icon { font-size: 30px; color: #00d4ff; }
.mat-item .mat-name { font-size: 14px; font-weight: 600; color: #fff; margin-top: 10px; }
.mat-item .mat-type { font-size: 12px; color: #7f8ca0; margin-top: 4px; }
.mat-item .mat-type b { color: #00d4ff; font-weight: 600; }

.handmade {
  width: 100%; max-width: 900px;
  display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin: 34px auto 0;
}
.hm-item {
  display: flex; align-items: center; gap: 8px;
  padding: 14px 22px; font-size: 14px; color: #d8dee9;
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid rgba(0,212,255,.28); border-radius: 12px;
  transition: all .25s ease; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.hm-item:hover { transform: translateY(-3px); border-color: rgba(0,212,255,.65); background: linear-gradient(160deg, rgba(255,255,255,.11), rgba(255,255,255,.04)); }
.hm-item .layui-icon { color: #00d4ff; font-size: 18px; }

.hero-carousel .layui-carousel-ind { bottom: 26px; }
.hero-carousel .layui-carousel-ind ul { background: rgba(0,0,0,.35); border-radius: 20px; padding: 6px 10px; }
.hero-carousel .layui-carousel-ind li { background: rgba(255,255,255,.4); width: 10px; height: 10px; margin: 0 4px; }
.hero-carousel .layui-carousel-ind li.layui-this { background: #00d4ff; }
.hero-carousel .layui-carousel-arrow { border-color: rgba(255,255,255,.5); background: rgba(0,0,0,.25); color: #fff; }
.hero-carousel .layui-carousel-arrow:hover { border-color: #00d4ff; background: rgba(0,0,0,.5); color: #00d4ff; }

/* ================= 首页套餐 ================= */
#packages {
  background:
    radial-gradient(760px 420px at 12% 0%, rgba(123,47,247,.16), transparent 60%),
    radial-gradient(700px 400px at 92% 6%, rgba(0,212,255,.13), transparent 60%),
    linear-gradient(180deg, rgba(13,16,23,.55), rgba(13,16,23,.32));
}
.pkg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pkg-card {
  position: relative; display: flex; flex-direction: column;
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.09); border-radius: 16px;
  padding: 30px 28px 26px; transition: all .25s ease; overflow: hidden;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 28px rgba(0,0,0,.25);
}
.pkg-card::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent);
}
.pkg-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,212,255,.6);
  background: linear-gradient(160deg, rgba(255,255,255,.10), rgba(255,255,255,.03));
  box-shadow: 0 18px 46px rgba(0,0,0,.5), 0 0 0 1px rgba(0,212,255,.12);
}
.pkg-card .pkg-icon {
  width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: #fff; margin-bottom: 16px;
}
.pkg-card .pkg-name { font-size: 19px; font-weight: 700; color: #fff; }
.pkg-card .pkg-desc { font-size: 13px; color: #7f8ca0; line-height: 1.7; margin: 10px 0 18px; min-height: 44px; }
.pkg-card .pkg-price { font-size: 14px; color: #6b7a90; margin-bottom: 16px; }
.pkg-card .pkg-price strong { font-size: 30px; color: #ffd54a; font-weight: 800; }
.pkg-card .pkg-price strong i { font-size: 16px; font-style: normal; margin-right: 2px; }
.pkg-card .pkg-price em { font-style: normal; font-size: 12px; }
.pkg-feat { list-style: none; flex: 1; margin: 0 0 22px; }
.pkg-feat li { font-size: 13px; color: #aab3c5; padding: 7px 0; border-bottom: 1px dashed rgba(255,255,255,.05); }
.pkg-feat li:last-child { border-bottom: none; }
.pkg-feat li .layui-icon { color: #00d4ff; font-size: 13px; margin-right: 6px; }
.pkg-card .pkg-btn {
  display: block; text-align: center; height: 44px; line-height: 44px;
  border-radius: 8px; font-size: 15px; letter-spacing: 3px; color: #fff;
  background: linear-gradient(135deg, #7b2ff7, #00d4ff);
  transition: opacity .2s, transform .1s;
}
.pkg-card .pkg-btn:hover { opacity: .88; }
.pkg-card .pkg-btn:active { transform: scale(.98); }
.pkg-card .pkg-btn.ghost { background: transparent; border: 1px solid #00d4ff; color: #00d4ff; }
.pkg-card.hot { border-color: rgba(255,213,74,.4); }
.pkg-card.hot::before {
  content: "热门推荐"; position: absolute; top: 16px; right: -34px;
  background: linear-gradient(90deg, #ffb300, #ff6f00); color: #1a1200;
  font-size: 12px; font-weight: 700; padding: 3px 38px; transform: rotate(45deg);
}
.pkg-card .tag { position: absolute; top: 16px; right: 16px; font-size: 12px; color: #00d4ff; border: 1px solid rgba(0,212,255,.4); padding: 2px 10px; border-radius: 20px; }

/* ================= 首页申请流程 ================= */
.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.flow-item {
  text-align: center; padding: 30px 18px;
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.09); border-radius: 14px;
  transition: all .25s ease; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.flow-item:hover { border-color: rgba(0,212,255,.55); transform: translateY(-4px); box-shadow: 0 14px 34px rgba(0,0,0,.4); }
.flow-item .f-num {
  width: 46px; height: 46px; line-height: 46px; margin: 0 auto 16px; border-radius: 50%;
  background: linear-gradient(135deg, #7b2ff7, #00d4ff); color: #fff; font-size: 20px; font-weight: 800;
}
.flow-item h3 { font-size: 16px; color: #fff; }
.flow-item p { font-size: 13px; color: #7f8ca0; line-height: 1.7; margin-top: 10px; }

/* ================= 首页服务优势 ================= */
#advantage {
  background:
    radial-gradient(760px 420px at 90% 0%, rgba(0,212,255,.13), transparent 60%),
    radial-gradient(700px 400px at 8% 12%, rgba(123,47,247,.13), transparent 60%),
    linear-gradient(180deg, rgba(13,16,23,.55), rgba(13,16,23,.32));
}
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-item {
  padding: 26px 22px;
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.09); border-radius: 14px; text-align: center;
  transition: all .25s ease; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.adv-item:hover { border-color: rgba(0,212,255,.55); transform: translateY(-4px); box-shadow: 0 14px 34px rgba(0,0,0,.4); }
.adv-item .a-icon { font-size: 30px; color: #00d4ff; }
.adv-item h3 { font-size: 15px; color: #fff; margin-top: 14px; }
.adv-item p { font-size: 12px; color: #7f8ca0; line-height: 1.7; margin-top: 8px; }

/* ================= 首页底部 CTA ================= */
.cta-banner {
  text-align: center; border-radius: 20px; padding: 60px 30px; position: relative; overflow: hidden;
  background:
    radial-gradient(520px 260px at 18% 0%, rgba(123,47,247,.45), transparent 65%),
    radial-gradient(520px 260px at 82% 100%, rgba(0,212,255,.4), transparent 65%),
    rgba(20,25,38,.5);
  border: 1px solid rgba(0,212,255,.3);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 18px 50px rgba(0,0,0,.45);
}
.cta-banner h2 { font-size: 28px; color: #fff; font-weight: 800; }
.cta-banner p { font-size: 14px; color: #c7d0de; margin: 14px 0 30px; }
.cta-banner .layui-btn { height: 48px; line-height: 48px; padding: 0 46px; border-radius: 8px; font-size: 16px; letter-spacing: 2px; }

/* ================= 首页常见问题 ================= */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
  border: 1px solid rgba(255,255,255,.09); border-radius: 12px;
  margin-bottom: 14px; padding: 4px 22px;
  transition: border-color .2s, background .2s;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.faq-item:hover { border-color: rgba(0,212,255,.45); background: linear-gradient(160deg, rgba(255,255,255,.09), rgba(255,255,255,.03)); }
.faq-item summary {
  cursor: pointer; font-size: 15px; font-weight: 600; color: #fff;
  padding: 16px 0; list-style: none; position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; position: absolute; right: 4px; top: 14px; font-size: 20px; color: #00d4ff; transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { font-size: 13px; color: #8b96a8; line-height: 1.9; padding: 0 0 18px; }

/* ================= 首页平台简介 ================= */
#about .about-copy {
  max-width: 860px; margin: 0 auto; padding: 30px 34px;
  background: linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
  border: 1px solid rgba(255,255,255,.09); border-radius: 14px;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
#about .about-copy p { font-size: 14px; color: #aab3c5; line-height: 1.95; margin-bottom: 12px; text-align: justify; }
#about .about-copy p:last-child { margin-bottom: 0; }
#about .about-copy a { color: #00d4ff; }
#about .about-copy a:hover { text-decoration: underline; }
#about .about-copy strong { color: #fff; }

/* ================= 系统公告列表 ================= */
.announce-list { display: flex; flex-direction: column; gap: 16px; }
.announce-item {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 22px 24px; border-radius: 14px; cursor: pointer;
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.09);
  transition: all .25s ease;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.announce-item:hover { transform: translateY(-4px); border-color: rgba(0,212,255,.6); background: linear-gradient(160deg, rgba(255,255,255,.10), rgba(255,255,255,.03)); box-shadow: 0 14px 34px rgba(0,0,0,.4); }
.announce-item .a-icon {
  width: 46px; height: 46px; flex-shrink: 0; border-radius: 12px;
  background: linear-gradient(135deg, #7b2ff7, #00d4ff); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 22px;
  box-shadow: 0 0 16px rgba(0,212,255,.3);
}
.announce-item .a-body { flex: 1; min-width: 0; }
.announce-item .a-title { font-size: 17px; font-weight: 700; color: #fff; line-height: 1.5; transition: color .2s; }
.announce-item:hover .a-title { color: #00d4ff; }
.announce-item .a-summary { font-size: 13px; color: #7f8ca0; line-height: 1.8; margin-top: 8px; }
.announce-item .a-meta { display: flex; align-items: center; gap: 16px; margin-top: 12px; }
.announce-item .a-time { font-size: 12px; color: #55617a; }
.announce-item .a-more { font-size: 12px; color: #00d4ff; display: inline-flex; align-items: center; gap: 4px; }

/* ================= 帮助中心列表 ================= */
.help-list { display: flex; flex-direction: column; gap: 16px; }
.help-item {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 20px 24px; border-radius: 14px; cursor: pointer;
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.09);
  transition: all .25s ease;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.help-item:hover { transform: translateY(-4px); border-color: rgba(0,212,255,.6); background: linear-gradient(160deg, rgba(255,255,255,.10), rgba(255,255,255,.03)); box-shadow: 0 14px 34px rgba(0,0,0,.4); }
.help-item .h-img {
  width: 120px; height: 84px; flex-shrink: 0; border-radius: 10px; overflow: hidden;
  background: linear-gradient(135deg, #7b2ff7, #00d4ff);
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 30px;
  box-shadow: 0 0 16px rgba(0,212,255,.25);
}
.help-item .h-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.help-item .h-body { flex: 1; min-width: 0; }
.help-item .h-title { font-size: 17px; font-weight: 700; color: #fff; line-height: 1.5; transition: color .2s; }
.help-item:hover .h-title { color: #00d4ff; }
.help-item .h-summary { font-size: 13px; color: #7f8ca0; line-height: 1.8; margin-top: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.help-item .h-meta { display: flex; align-items: center; gap: 16px; margin-top: 12px; flex-wrap: wrap; }
.help-item .h-cate { font-size: 12px; color: #00d4ff; border: 1px solid rgba(0,212,255,.4); padding: 1px 10px; border-radius: 20px; }
.help-item .h-time { font-size: 12px; color: #55617a; }
.help-item .h-more { font-size: 12px; color: #00d4ff; display: inline-flex; align-items: center; gap: 4px; margin-left: auto; }

/* ================= 页脚 ================= */
.footer {
  border-top: 1px solid rgba(255,255,255,.08); padding: 40px 20px; text-align: center;
  background: linear-gradient(180deg, rgba(8,10,15,.55), rgba(8,10,15,.95));
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.footer p { font-size: 13px; color: #55617a; line-height: 2; }
.footer a { color: #8b96a8; }
.footer a:hover { color: #00d4ff; }

/* ================= 响应式 ================= */
@media screen and (max-width: 992px) {
  .pkg-grid, .flow-grid, .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-carousel, .hero-carousel [carousel-item] > * { height: 600px !important; }
  .hero .title { font-size: 34px; }
}
@media screen and (max-width: 640px) {
  .nav-links { display: none; }
  .hero-carousel, .hero-carousel [carousel-item] > * { height: 680px !important; }
  .hero .title { font-size: 27px; }
  .mat-item { width: 44%; }
  .hm-item { width: 100%; justify-content: center; }
  .hero-stat { gap: 26px; }
  .hero-stat .s-num { font-size: 24px; }
  .pkg-grid, .flow-grid, .adv-grid { grid-template-columns: 1fr; }
  .announce-item { padding: 18px 16px; }
  .announce-item .a-title { font-size: 15px; }
  .help-item { padding: 18px 16px; }
  .help-item .h-img { width: 84px; height: 64px; font-size: 24px; }
  .help-item .h-title { font-size: 15px; }
  .help-item .h-more { display: none; }
  .article { padding: 24px 20px; }
  .article h1 { font-size: 20px; }
}