*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:inherit}
button,input,select,textarea{font:inherit;color:inherit;border:none;background:none}
button{cursor:pointer}
h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}
ol,ul{list-style:none}
table{border-collapse:collapse}
.icon{display:inline-block;vertical-align:-.125em;width:1em;height:1em;fill:currentColor}

/* UI01 极简留白风 · 结构05 安全背书型 · M1-A01 · M5-B Tab */
:root {
  --c-primary: #2F6BFF;
  --c-primary-d: #1E54D6;
  --c-cta: #2F6BFF;
  --c-cta-hover: #1E54D6;
  --c-bg: #FFFFFF;
  --c-bg2: #F4F7FF;
  --c-text: #1A202C;
  --c-sub: #64748B;
  --c-border: #E2E8F0;
  --c-success: #059669;
  --radius: 14px;
  --shadow: 0 4px 24px rgba(47, 107, 255, .08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--c-bg); color: var(--c-text); font: 15px/1.65 'PingFang SC','Microsoft YaHei',sans-serif; -webkit-font-smoothing: antialiased; padding-bottom: calc(56px + env(safe-area-inset-bottom, 0px)); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: 480px; margin: 0 auto; padding: 0 16px; }
.section-pad { padding: 44px 0; }
.section-header { text-align: center; margin-bottom: 22px; }
.sec-title { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.sec-title i { color: var(--c-primary); margin-right: 8px; }
.sec-sub { font-size: 13px; color: var(--c-sub); }

/* F1 */
.navbar {
  background: var(--c-bg); border-bottom: 1px solid var(--c-border);
  position: sticky; top: 0; z-index: 100;
  display: block !important; padding: 0 !important;
}
.nav-inner {
  max-width: 480px; margin: 0 auto; padding: 0 14px;
  height: 52px; display: flex; align-items: center; gap: 8px;
  position: relative;
}
.nav-logo { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 800; color: var(--c-text); flex-shrink: 0; margin-right: auto; }
.logo-icon { color: var(--c-primary); font-size: 20px; }
.nav-links {
  display: none; flex-direction: column;
  position: absolute; top: 100%; left: 0; right: 0;
  background: var(--c-bg); border-top: 1px solid var(--c-border);
  box-shadow: 0 12px 32px rgba(15,23,42,.08); z-index: 200; padding: 8px 0;
}
.nav-links.open { display: flex; }
.nav-links a { padding: 12px 18px; font-size: 14px; font-weight: 600; color: var(--c-text); }
.nav-links a:hover { background: var(--c-bg2); color: var(--c-primary); }
.btn-cta-nav {
  background: var(--c-primary); color: #fff; border: none; border-radius: 50px;
  padding: 7px 14px; font-size: 12px; font-weight: 700; flex-shrink: 0; cursor: pointer;
}
.nav-toggle {
  background: none; border: none; cursor: pointer;
  width: 38px; height: 38px; display: flex; flex-direction: column;
  justify-content: center; gap: 5px; flex-shrink: 0;
}
.nav-toggle span { height: 2px; background: var(--c-text); border-radius: 2px; transition: .25s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 481px) {
  .nav-logo { margin-right: 0; }
  .nav-links {
    display: flex !important; flex-direction: row; position: static;
    background: transparent; border: none; box-shadow: none;
    flex: 1; justify-content: center; gap: 2px; padding: 0;
  }
  .nav-links a { padding: 6px 10px; font-size: 12px; }
  .nav-toggle { display: none; }
}

/* M1 A01 */
.hero {
  position: relative; min-height: 86vh; overflow: hidden;
  background: url("../images/jimeng-2026-02-03-2809.webp") center/cover no-repeat;
}
.hero-overlay {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, rgba(255,255,255,.88) 0%, rgba(244,247,255,.92) 45%, rgba(255,255,255,.95) 100%);
}
.hero-content { position: relative; z-index: 5; min-height: 86vh; width: 100%; display: flex; flex-direction: column; }
.compliance-bar {
  position: absolute; top: 0; left: 0; right: 0; z-index: 10;
  background: rgba(30,41,59,.88); backdrop-filter: blur(4px);
  color: rgba(255,255,255,.9); font-size: 11px; padding: 8px 12px;
  display: flex; align-items: center; gap: 8px; text-align: left;
}
.compliance-bar > span { flex: 1; line-height: 1.5; }
.compliance-close {
  flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%;
  border: none; background: rgba(255,255,255,.2); color: #fff; cursor: pointer; font-size: 14px;
}
.hero-body {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 88px 22px 48px;
}
.hero-title {
  font-size: 26px; font-weight: 900; line-height: 1.25; color: var(--c-text);
  margin-bottom: 12px; letter-spacing: -0.5px;
}
.hero-title em { color: var(--c-primary); font-style: normal; }
.hero-sub { font-size: 14px; color: var(--c-sub); margin-bottom: 28px; line-height: 1.65; max-width: 320px; }
.btn-hero-main {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--c-primary); color: #fff; border: none; border-radius: 50px;
  padding: 15px 36px; font-size: 16px; font-weight: 800; cursor: pointer;
  box-shadow: 0 8px 28px rgba(47, 107, 255, .35);
}
.btn-hero-main:hover { background: var(--c-primary-d); }
.hero-micro { margin-top: 14px; font-size: 11px; color: var(--c-sub); }

/* M7 */
.privacy-hero {
  background: linear-gradient(180deg, var(--c-bg2) 0%, var(--c-bg) 100%);
  border-top: 1px solid var(--c-border);
}
.privacy-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.privacy-card {
  background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: 16px 12px; text-align: center; box-shadow: var(--shadow);
}
.privacy-card .ico {
  width: 48px; height: 48px; margin: 0 auto 10px; border-radius: 14px;
  background: var(--c-bg2); color: var(--c-primary); display: flex;
  align-items: center; justify-content: center; font-size: 22px;
}
.privacy-card h3 { font-size: 13px; font-weight: 800; margin-bottom: 4px; }
.privacy-card p { font-size: 11px; color: var(--c-sub); line-height: 1.5; }

/* M3 */
.trust-strip {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 16px;
}
.trust-item {
  background: var(--c-bg2); border-radius: var(--radius); padding: 16px;
  text-align: center; border: 1px solid var(--c-border);
}
.trust-item .num { font-size: 26px; font-weight: 900; color: var(--c-primary); }
.trust-item .lbl { font-size: 11px; color: var(--c-sub); margin-top: 4px; }
.trust-photo { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.trust-photo img { width: 100%; height: 150px; object-fit: cover; }

/* M5 Tab */
.svc-tabs {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 16px;
}
.svc-tab {
  border: 1px solid var(--c-border); background: var(--c-bg);
  border-radius: 50px; padding: 8px 14px; font-size: 12px; font-weight: 700;
  color: var(--c-sub); cursor: pointer; transition: .2s;
}
.svc-tab.active { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.svc-panel { display: none; background: var(--c-bg2); border-radius: var(--radius); padding: 16px; border: 1px solid var(--c-border); }
.svc-panel.active { display: block; }
.svc-panel img { width: 100%; max-height: 160px; object-fit: cover; border-radius: 10px; margin-bottom: 12px; }
.svc-panel h3 { font-size: 16px; font-weight: 800; margin-bottom: 8px; }
.svc-panel p { font-size: 13px; color: var(--c-sub); line-height: 1.65; margin-bottom: 14px; }
.svc-panel .btn-svc {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--c-primary); color: #fff; border-radius: 50px;
  padding: 10px 22px; font-size: 13px; font-weight: 700;
}

/* M2 ticker */
.ticker-wrap { background: var(--c-primary); overflow: hidden; padding: 10px 0; }
.ticker-inner { display: flex; animation: tk 30s linear infinite; white-space: nowrap; }
.ticker-item { padding: 0 20px; font-size: 12px; color: rgba(255,255,255,.92); flex-shrink: 0; }
.ticker-item i { margin-right: 6px; opacity: .9; }
@keyframes tk { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* M6 */
.steps { display: flex; flex-direction: column; gap: 12px; }
.step {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--c-bg); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow);
}
.step-num {
  width: 32px; height: 32px; border-radius: 10px; background: var(--c-primary);
  color: #fff; font-weight: 900; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; font-size: 14px;
}
.step h4 { font-size: 14px; font-weight: 800; margin-bottom: 4px; }
.step p { font-size: 12px; color: var(--c-sub); line-height: 1.55; }

/* M4 */
.rev { background: var(--c-bg2); border-radius: var(--radius); padding: 14px; margin-bottom: 12px; border: 1px solid var(--c-border); }
.rev-top { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.rev-av {
  width: 40px; height: 40px; border-radius: 12px; background: var(--c-primary);
  color: #fff; font-weight: 900; display: flex; align-items: center; justify-content: center;
}
.rev-name { font-size: 13px; font-weight: 800; }
.rev-city { font-size: 11px; color: var(--c-sub); }
.rev-amt { margin-left: auto; font-size: 12px; font-weight: 800; color: var(--c-primary); }
.rev-txt { font-size: 13px; color: var(--c-sub); line-height: 1.6; }

/* M8 */
.faq-item { border: 1px solid var(--c-border); border-radius: var(--radius); margin-bottom: 8px; overflow: hidden; background: var(--c-bg); }
.faq-q { padding: 14px; font-size: 14px; font-weight: 800; display: flex; justify-content: space-between; align-items: center; cursor: pointer; }
.faq-q i { color: var(--c-primary); transition: .2s; }
.faq-item.open .faq-q i { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 14px 14px; font-size: 13px; color: var(--c-sub); line-height: 1.65; }
.faq-item.open .faq-a { display: block; }

/* M9 */
.about-p { font-size: 14px; color: var(--c-sub); line-height: 1.75; text-align: center; margin-bottom: 16px; }
.about-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.about-img img { width: 100%; height: 148px; object-fit: cover; }

/* M13 */
.cond-row {
  display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--c-border);
  align-items: flex-start; font-size: 13px;
}
.cond-row:last-child { border-bottom: none; }
.cond-row i { color: var(--c-success); margin-top: 2px; }

/* M10 */
.contact-block {
  background: linear-gradient(165deg, var(--c-primary) 0%, #1E54D6 100%);
  padding: 40px 0 48px; text-align: center;
}
.contact-block h2 { font-size: 22px; font-weight: 900; color: #fff; margin-bottom: 6px; }
.contact-block .sub { font-size: 12px; color: rgba(255,255,255,.78); margin-bottom: 18px; }
.cp-card {
  background: rgba(255,255,255,.12); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.22); border-radius: var(--radius);
  padding: 18px; text-align: left; margin: 0 16px;
}
.cp-line { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.cp-line:last-of-type { margin-bottom: 0; }
.cp-line .lb { font-size: 10px; color: rgba(255,255,255,.65); }
.cp-line .vl { font-size: 15px; font-weight: 800; color: #fff; word-break: break-all; }
.cp-btn {
  flex-shrink: 0; background: rgba(255,255,255,.22); border: 1px solid rgba(255,255,255,.35);
  color: #fff; border-radius: 8px; padding: 6px 12px; font-size: 11px; font-weight: 700; cursor: pointer;
}
.cta-lg {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: calc(100% - 0px); margin-top: 16px; background: #fff; color: var(--c-primary);
  border: none; border-radius: 50px; padding: 14px; font-size: 15px; font-weight: 800;
  font-family: inherit; cursor: pointer;
}

footer { background: #F8FAFC; color: var(--c-sub); padding: 24px 0 20px; font-size: 12px; line-height: 1.7; border-top: 1px solid var(--c-border); }
footer .ft { font-weight: 800; color: var(--c-text); margin-bottom: 8px; font-size: 14px; }
footer .fd { font-size: 10px; color: #94A3B8; margin-top: 12px; }

/* F3-A · 移动端底部悬浮条 */
.float-bottom { position: fixed; bottom: 0; left: 0; right: 0; z-index: 90; display: flex; max-width: 480px; margin: 0 auto; box-shadow: 0 -4px 20px rgba(15,23,42,.08);
  padding-bottom: env(safe-area-inset-bottom, 0px); }
.fb { flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px; padding: 14px; font-size: 14px; font-weight: 700; color: #fff; }
.fb-p { background: var(--c-text); }
.fb-w { background: var(--c-primary); }

.btn-scroll {
  position: fixed; right: 14px; bottom: 76px; z-index: 89;
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--c-border);
  background: var(--c-bg); color: var(--c-primary); font-size: 16px; cursor: pointer;
  box-shadow: var(--shadow);
}

/* contact-fix */
.vl{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cp-btn{flex-shrink:0;white-space:nowrap;margin-left:auto}

/* === 首屏外区域延迟渲染 === */
section:not(#home):not(.hero),.ticker-wrap,footer,.flink-section{content-visibility:auto;contain-intrinsic-size:auto 500px}