*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg: #0a0e1a;
  --color-bg-card: #0f172a;
  --color-bg-elevated: #1e293b;
  --color-accent-cyan: #00d4ff;
  --color-accent-purple: #7c3aed;
  --color-text-primary: #e0f7ff;
  --color-text-secondary: #94a3b8;
  --color-border: #1e3a5f;
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Fira Code", monospace;
  --radius-card: 12px;
  --transition: .25s ease;
}

html { scroll-behavior: smooth; font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text-secondary); line-height: 1.6; }
body { overflow-x: hidden; }
h1, h2, h3, h4 { color: var(--color-text-primary); line-height: 1.2; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { border: 0; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-label { margin-bottom: 12px; color: var(--color-accent-cyan); font-family: var(--font-mono); font-size: .75rem; letter-spacing: 3px; text-transform: uppercase; }
.section-title { margin-bottom: 16px; color: var(--color-text-primary); font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 800; }
.section-subtitle { max-width: 600px; margin-bottom: 60px; color: var(--color-text-secondary); font-size: 1rem; }
.card { padding: 32px; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-bg-card); transition: border-color var(--transition), box-shadow var(--transition); }
.card:hover { border-color: var(--color-accent-cyan); box-shadow: 0 0 24px rgba(0, 212, 255, .15); }
.btn-primary, .btn-outline { display: inline-block; padding: 12px 28px; border-radius: 6px; font-size: .95rem; font-weight: 600; cursor: pointer; transition: opacity var(--transition), transform var(--transition), background var(--transition); }
.btn-primary { border: none; background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-purple)); color: #fff; }
.btn-primary:hover { opacity: .85; transform: translateY(-1px); }
.btn-outline { border: 1px solid var(--color-accent-cyan); background: transparent; color: var(--color-accent-cyan); }
.btn-outline:hover { background: rgba(0, 212, 255, .08); transform: translateY(-1px); }

.header { position: fixed; z-index: 100; inset: 0 0 auto; padding: 0; transition: background .3s, backdrop-filter .3s; }
.header.scrolled { border-bottom: 1px solid var(--color-border); background: rgba(10, 14, 26, .85); backdrop-filter: blur(12px); }
.header-inner { display: flex; height: 72px; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.logo-icon { display: block; width: 28px; height: 28px; flex: 0 0 auto; border-radius: 6px; background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-purple)); }
.logo-text { color: var(--color-text-primary); font-size: 1.1rem; font-weight: 800; letter-spacing: 1px; }
.nav { display: flex; align-items: center; gap: 32px; }
.nav-link { color: var(--color-text-secondary); font-size: .9rem; transition: color var(--transition); }
.nav-link:hover { color: var(--color-accent-cyan); }
.nav-cta { padding: 8px 20px; font-size: .85rem; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; background: none; cursor: pointer; }
.hamburger span { display: block; width: 24px; height: 2px; border-radius: 2px; background: var(--color-text-primary); transition: var(--transition); }

.hero { position: relative; display: flex; min-height: 100vh; align-items: center; overflow: hidden; }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(0, 212, 255, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 212, 255, .04) 1px, transparent 1px); background-size: 60px 60px; }
.hero-glow { position: absolute; top: 50%; left: 50%; width: 700px; height: 700px; transform: translate(-50%, -50%); background: radial-gradient(circle, rgba(0, 212, 255, .08) 0%, rgba(124, 58, 237, .05) 40%, transparent 70%); pointer-events: none; }
.hero-content { position: relative; z-index: 1; padding-top: 80px; text-align: center; }
.hero-title { margin-bottom: 24px; color: var(--color-text-primary); font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 900; line-height: 1.1; }
.highlight { background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-purple)); background-clip: text; color: transparent; }
.hero-subtitle { max-width: 560px; margin: 0 auto 40px; color: var(--color-text-secondary); font-size: clamp(1rem, 1.5vw, 1.15rem); line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 80px; }
.hero-stats { display: flex; flex-wrap: wrap; justify-content: center; gap: 60px; }
.stat { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.stat-value { color: var(--color-accent-cyan); font-family: var(--font-mono); font-size: 2rem; font-weight: 800; }
.stat-label { color: var(--color-text-secondary); font-size: .8rem; }

.about-inner { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 80px; }
.about-desc { color: var(--color-text-secondary); font-size: .95rem; line-height: 1.8; }
.about-desc-spaced { margin-top: 16px; }
.about-mission { display: flex; align-items: center; gap: 12px; margin-top: 32px; padding: 16px 20px; border-left: 3px solid var(--color-accent-cyan); border-radius: 0 8px 8px 0; background: rgba(0, 212, 255, .05); }
.mission-label { color: var(--color-accent-cyan); font-family: var(--font-mono); font-size: .7rem; letter-spacing: 2px; white-space: nowrap; }
.mission-text { color: var(--color-text-primary); font-size: .9rem; }
.about-cards { display: flex; flex-direction: column; gap: 20px; }
.advantage-card { display: flex; flex-direction: column; gap: 8px; padding: 24px; }
.adv-icon { font-size: 1.5rem; }
.adv-title { color: var(--color-text-primary); font-size: 1rem; font-weight: 700; }
.adv-desc { color: var(--color-text-secondary); font-size: .85rem; line-height: 1.6; }

.products-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.product-card { display: flex; flex-direction: column; gap: 16px; }
.product-header { display: flex; align-items: center; justify-content: space-between; }
.product-icon { font-size: 2rem; }
.product-tag { padding: 4px 10px; border: 1px solid rgba(0, 212, 255, .3); border-radius: 20px; color: var(--color-accent-cyan); font-family: var(--font-mono); font-size: .7rem; letter-spacing: 2px; }
.product-title { color: var(--color-text-primary); font-size: 1.3rem; font-weight: 700; }
.product-desc { color: var(--color-text-secondary); font-size: .9rem; line-height: 1.6; }
.feature-list { display: flex; flex: 1; flex-direction: column; gap: 10px; list-style: none; }
.feature-list li { display: flex; align-items: center; gap: 10px; color: var(--color-text-secondary); font-size: .88rem; }
.feature-dot { width: 6px; height: 6px; flex-shrink: 0; border-radius: 50%; background: var(--color-accent-cyan); }
.product-btn { width: 100%; margin-top: auto; padding: 10px; text-align: center; }

.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 80px; }
.case-card { display: flex; flex-direction: column; gap: 12px; }
.case-tag { display: inline-block; width: fit-content; padding: 3px 10px; border: 1px solid rgba(124, 58, 237, .4); border-radius: 20px; color: var(--color-accent-purple); font-family: var(--font-mono); font-size: .7rem; letter-spacing: 1px; }
.case-title { color: var(--color-text-primary); font-size: 1rem; font-weight: 700; line-height: 1.4; }
.case-desc { flex: 1; color: var(--color-text-secondary); font-size: .85rem; line-height: 1.6; }
.case-result { display: flex; align-items: baseline; gap: 8px; padding-top: 12px; border-top: 1px solid var(--color-border); }
.result-value { color: var(--color-accent-cyan); font-family: var(--font-mono); font-size: 1.6rem; font-weight: 800; }
.result-label { color: var(--color-text-secondary); font-size: .8rem; }
.partners-title { margin-bottom: 32px; color: var(--color-text-secondary); font-family: var(--font-mono); font-size: .75rem; letter-spacing: 3px; text-align: center; text-transform: uppercase; }
.partners-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.partner-logo { display: flex; height: 64px; align-items: center; justify-content: center; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-bg-card); color: var(--color-text-secondary); font-size: .75rem; transition: border-color var(--transition); }
.partner-logo:hover { border-color: var(--color-accent-cyan); }

.contact-inner { display: grid; grid-template-columns: 1fr 1.2fr; align-items: start; gap: 80px; }
.contact-desc { margin-bottom: 40px; color: var(--color-text-secondary); font-size: .95rem; line-height: 1.8; }
.info-items { display: flex; flex-direction: column; gap: 24px; }
.info-item { display: flex; align-items: flex-start; gap: 16px; }
.info-icon { margin-top: 2px; font-size: 1.2rem; }
.info-label { margin-bottom: 4px; color: var(--color-accent-cyan); font-family: var(--font-mono); font-size: .75rem; letter-spacing: 1px; }
.info-value { color: var(--color-text-primary); font-size: .9rem; }
.contact-form { display: flex; flex-direction: column; gap: 20px; padding: 40px; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-bg-card); }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { color: var(--color-text-secondary); font-size: .85rem; }
.form-group input, .form-group textarea { padding: 12px 16px; border: 1px solid var(--color-border); border-radius: 6px; outline: none; background: var(--color-bg); color: var(--color-text-primary); font-family: var(--font-sans); font-size: .9rem; resize: vertical; transition: border-color var(--transition); }
.form-group input:focus, .form-group textarea:focus { border-color: var(--color-accent-cyan); }
.form-group input.error, .form-group textarea.error { border-color: #ef4444; }
.error-msg { color: #ef4444; font-size: .78rem; }
.error-msg:empty { display: none; }
.submit-btn { width: 100%; padding: 14px; font-size: 1rem; }
.submit-btn:disabled { cursor: not-allowed; opacity: .6; }
.status-msg { padding: 12px 16px; border-radius: 6px; font-size: .88rem; text-align: center; }
.status-msg.success { border: 1px solid rgba(0, 212, 255, .3); background: rgba(0, 212, 255, .08); color: var(--color-accent-cyan); }
.status-msg.error-status { border: 1px solid rgba(239, 68, 68, .3); background: rgba(239, 68, 68, .08); color: #ef4444; }
.honey { display: none; }

.footer { padding: 60px 0 30px; border-top: 1px solid var(--color-border); background: var(--color-bg-card); }
.footer-inner { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; margin-bottom: 40px; }
.footer-brand { display: flex; flex-direction: column; gap: 8px; }
.footer-brand .logo-icon { margin-bottom: 4px; }
.footer-name { color: var(--color-text-primary); font-size: 1rem; font-weight: 700; }
.footer-desc { max-width: 240px; color: var(--color-text-secondary); font-size: .85rem; }
.footer-links { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; }
.footer-links a { color: var(--color-text-secondary); font-size: .9rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--color-accent-cyan); }
.footer-links .footer-safety-link { display: inline-flex; min-height: 38px; align-items: center; padding: 0 14px; border: 1px solid rgba(0, 212, 255, .55); border-radius: 6px; background: rgba(0, 212, 255, .09); color: var(--color-text-primary); font-weight: 700; box-shadow: 0 0 20px rgba(0, 212, 255, .1); }
.footer-links .footer-safety-link::before { width: 7px; height: 7px; margin-right: 9px; border-radius: 50%; background: var(--color-accent-cyan); content: ""; box-shadow: 0 0 10px rgba(0, 212, 255, .8); }
.footer-links .footer-safety-link:hover { border-color: var(--color-accent-cyan); background: rgba(0, 212, 255, .15); color: #fff; }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--color-border); color: var(--color-text-secondary); font-size: .8rem; }

.policy-page { overflow-wrap: anywhere; background: var(--color-bg); }
.policy-header { background: rgba(10, 14, 26, .96); }
.policy-home-link { padding: 8px 18px; font-size: .85rem; }
.policy-main { min-height: 100vh; }
.policy-hero { position: relative; overflow: hidden; padding: 152px 0 72px; border-bottom: 1px solid var(--color-border); }
.policy-hero .hero-grid { opacity: .7; }
.policy-hero-inner { position: relative; z-index: 1; }
.policy-hero h1 { max-width: 840px; margin-bottom: 20px; overflow-wrap: normal; color: var(--color-text-primary); font-size: clamp(2.25rem, 5vw, 4rem); font-weight: 850; }
.policy-lead { max-width: 820px; color: var(--color-text-secondary); font-size: 1.08rem; line-height: 1.8; }
.policy-lead strong { color: var(--color-text-primary); }
.policy-meta { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 30px; color: var(--color-text-secondary); font-family: var(--font-mono); font-size: .75rem; }
.policy-meta strong { color: var(--color-accent-cyan); font-weight: 600; }
.policy-layout { display: grid; grid-template-columns: 220px minmax(0, 760px); justify-content: space-between; gap: 72px; padding-top: 80px; padding-bottom: 110px; }
.policy-toc { position: sticky; top: 108px; display: flex; height: fit-content; flex-direction: column; gap: 12px; padding-left: 18px; border-left: 1px solid var(--color-border); }
.policy-toc p { margin-bottom: 8px; color: var(--color-text-primary); font-size: .8rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; }
.policy-toc a { color: var(--color-text-secondary); font-size: .84rem; transition: color var(--transition); }
.policy-toc a:hover { color: var(--color-accent-cyan); }
.policy-content { min-width: 0; max-width: 100%; }
.policy-section { max-width: 100%; scroll-margin-top: 104px; padding: 0 0 56px; margin-bottom: 56px; border-bottom: 1px solid var(--color-border); }
.policy-section:last-child { margin-bottom: 0; }
.policy-section-number { margin-bottom: 8px; color: var(--color-accent-cyan); font-family: var(--font-mono); font-size: .72rem; letter-spacing: 2px; }
.policy-section h2 { margin-bottom: 20px; color: var(--color-text-primary); font-size: 1.65rem; font-weight: 750; }
.policy-section p { margin-top: 14px; color: var(--color-text-secondary); font-size: .94rem; line-height: 1.85; }
.policy-section strong { color: var(--color-text-primary); }
.policy-callout { padding: 30px 32px; border: 1px solid rgba(0, 212, 255, .42); border-radius: 8px; background: rgba(0, 212, 255, .045); }
.policy-list { display: flex; flex-direction: column; gap: 13px; margin-top: 18px; list-style: none; }
.policy-list li { position: relative; padding-left: 22px; color: var(--color-text-secondary); font-size: .92rem; line-height: 1.7; }
.policy-list li::before { position: absolute; top: .68em; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--color-accent-cyan); content: ""; }
.policy-email { color: var(--color-accent-cyan); text-decoration: underline; text-underline-offset: 3px; }
.safety-contact-card { padding: 34px; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-bg-card); }
.safety-email-button { display: inline-flex; min-height: 44px; align-items: center; margin-top: 22px; padding: 0 18px; border: 1px solid var(--color-accent-cyan); border-radius: 6px; color: var(--color-accent-cyan); font-family: var(--font-mono); font-size: .86rem; }
.safety-email-button:hover { background: rgba(0, 212, 255, .08); }
.policy-section .safety-contact-note { margin-top: 16px; font-size: .8rem; }
.policy-footer { padding-top: 48px; }
.privacy-hero .hero-grid { background-size: 72px 72px; }
.privacy-data-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 24px; }
.privacy-data-item { padding: 20px; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-bg-card); }
.privacy-data-item h3 { margin-bottom: 8px; color: var(--color-text-primary); font-size: .96rem; }
.privacy-data-item p { margin-top: 0; font-size: .84rem; line-height: 1.7; }
.privacy-deletion-card { border-color: rgba(0, 212, 255, .5); }

@media (max-width: 900px) {
  .about-inner, .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .cases-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
  .policy-layout { grid-template-columns: 1fr; gap: 48px; }
  .policy-toc { position: static; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .policy-toc p { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .hamburger { display: flex; }
  .nav { position: absolute; top: 72px; right: 0; left: 0; display: none; flex-direction: column; gap: 20px; padding: 24px; border-bottom: 1px solid var(--color-border); background: rgba(10, 14, 26, .97); }
  .nav.open { display: flex; }
  .nav-cta { width: 100%; text-align: center; }
  .hero-content { padding-top: 100px; }
  .hero-stats { gap: 32px; }
  .stat-value { font-size: 1.6rem; }
  .products-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { flex-direction: column; }
  .policy-hero { padding: 124px 0 56px; }
  .policy-home-link { padding: 7px 12px; font-size: .78rem; }
  .policy-header .logo-text { font-size: .9rem; }
  .policy-hero h1 { font-size: 2.25rem; line-height: 1.15; }
  .policy-lead { font-size: .96rem; }
  .policy-layout { padding-top: 56px; padding-bottom: 72px; }
  .policy-section { padding-bottom: 42px; margin-bottom: 42px; }
  .policy-callout, .safety-contact-card { padding: 24px; }
  .privacy-data-grid { grid-template-columns: 1fr; }
}