:root {
  --primary: #f28ab2;
  --secondary: #7dd7c1;
  --accent: #ffd166;
  --bg-dark: #1f1734;
  --bg-light: rgba(255,255,255,.12);
  --text-main: #fff9ff;
  --text-muted: rgba(255,249,255,.72);
  --shadow-soft: 0 18px 50px rgba(31,23,52,.24);
}
*{box-sizing:border-box;margin:0;padding:0} html{scroll-behavior:smooth} body{font-family:"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#fffaf5 0%,#f7f4ff 52%,#effbf6 100%);color:#31294a;line-height:1.75;overflow-x:hidden} a{text-decoration:none;color:inherit} img{max-width:100%;display:block}
#main-header{transition:background .35s ease,box-shadow .35s ease,backdrop-filter .35s ease}.header-scrolled{background:rgba(31,23,52,.86)!important;backdrop-filter:blur(16px);box-shadow:0 10px 32px rgba(31,23,52,.2)}
.nav-link{position:relative;color:rgba(255,255,255,.86);font-weight:700}.nav-link::after{content:"";position:absolute;left:0;bottom:-8px;width:100%;height:3px;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent));transform:scaleX(0);transition:transform .25s ease}.nav-link:hover,.nav-link.active{color:#fff}.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.mobile-nav{background:linear-gradient(180deg,rgba(31,23,52,.98),rgba(53,40,87,.98))}.mobile-nav nav a{display:flex;align-items:center;gap:.75rem;padding:.95rem 1rem;border-radius:1rem;color:rgba(255,255,255,.82)}.mobile-nav nav a.active,.mobile-nav nav a:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-gel,.btn-outline{display:inline-flex;align-items:center;justify-content:center;font-weight:800;transition:transform .25s ease,box-shadow .25s ease}.btn-gel{padding:.92rem 1.8rem;border-radius:999px;color:#3f2b21;background:linear-gradient(135deg,var(--accent),#ffe29f 48%,#ffd166 100%);box-shadow:0 8px 0 #dca83f,0 18px 28px rgba(255,209,102,.35)}.btn-gel:hover{transform:translateY(-4px) scale(1.02)}.btn-outline{padding:.9rem 1.6rem;border-radius:18px;border:2px solid rgba(242,138,178,.45);background:#fff;color:#b6508c;box-shadow:0 10px 24px rgba(242,138,178,.14)}.btn-outline:hover{transform:translateY(-3px) rotate(-1deg)}
.page-banner{padding:8rem 0 4rem;background:radial-gradient(circle at 20% 25%,rgba(242,138,178,.28),transparent 25%),radial-gradient(circle at 78% 22%,rgba(125,215,193,.24),transparent 20%),linear-gradient(135deg,#5d4b8a 0%,#2f2748 46%,#453962 100%);color:#fff}.banner-shell{max-width:52rem}.banner-kicker{color:var(--accent);font-weight:800;letter-spacing:.08em;margin-bottom:.8rem}.page-title{font-size:clamp(2rem,4.5vw,4.3rem);line-height:1.1;font-weight:900}.page-desc{margin-top:1.2rem;color:rgba(255,255,255,.82);font-size:clamp(1rem,1.2vw,1.12rem)}
.section{padding:5.2rem 0}.section-soft{background:linear-gradient(180deg,rgba(255,243,248,.78),rgba(241,255,250,.82))}.section-download{padding-top:0}.section-head{margin-bottom:2rem}.section-title{display:inline-flex;align-items:center;gap:.7rem;font-size:clamp(1.7rem,3vw,3rem);font-weight:900;color:#31294a}.line-title::after{content:"";width:74px;height:6px;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--accent))}.stamp-title::before{content:"✦";width:42px;height:42px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),#f6accd);color:#fff}.section-subtitle{margin-top:1rem;color:#665d7f;max-width:46rem}
.timeline-wrap{display:grid;gap:1rem;position:relative}.timeline-wrap::before{content:"";position:absolute;left:27px;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--primary),var(--secondary),var(--accent));border-radius:999px}.timeline-item{display:grid;grid-template-columns:72px 1fr;gap:1rem;align-items:start}.timeline-no{width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,var(--secondary),var(--primary));color:#fff;font-weight:900;display:flex;align-items:center;justify-content:center;position:relative;z-index:1;box-shadow:0 10px 24px rgba(125,215,193,.22)}.timeline-card{padding:1.5rem 1.6rem;border-radius:28px;background:#fff;box-shadow:var(--shadow-soft)}.timeline-card.warm{background:linear-gradient(180deg,#fffdf6,#fff4de)}.timeline-card h2{font-size:1.4rem;color:#31294a;margin-bottom:.65rem}.timeline-card p{color:#655c7b}
.feature-rows{display:grid;gap:1.5rem}.feature-row{display:grid;grid-template-columns:.95fr 1.05fr;gap:1.4rem;align-items:center;padding:1.2rem;border-radius:32px;background:rgba(255,255,255,.88);box-shadow:var(--shadow-soft)}.feature-row.reverse{grid-template-columns:1.05fr .95fr}.feature-row.reverse .feature-media{order:2}.bubble-frame,.sticker-frame{border-radius:28px;overflow:hidden;min-height:320px}.bubble-frame{border:4px solid rgba(125,215,193,.35)}.sticker-frame{border:4px dashed rgba(242,138,178,.42)}.bubble-frame img,.sticker-frame img{width:100%;height:100%;object-fit:cover}.feature-tag{display:inline-flex;padding:.48rem .9rem;border-radius:999px;background:rgba(125,215,193,.18);color:#34786d;font-weight:800}.feature-tag.warm{background:rgba(242,138,178,.18);color:#b6508c}.feature-body h2{font-size:clamp(1.45rem,2.4vw,2.2rem);margin:.7rem 0 1rem;color:#31294a}.feature-body p,.feature-body li{color:#665d7f}.feature-body ul{padding-left:1.15rem;display:grid;gap:.45rem;margin:1rem 0 1.1rem}
.download-card{display:grid;grid-template-columns:1.1fr .9fr;gap:1.4rem;padding:2rem;border-radius:32px;background:linear-gradient(135deg,#fff 0%,#fff4e0 100%);box-shadow:var(--shadow-soft)}.download-buttons{display:flex;flex-direction:column;gap:1rem;justify-content:center}
.site-footer{background:linear-gradient(135deg,#2f2748 0%,#3d315f 100%);color:rgba(255,255,255,.82);padding:2.2rem 0}.footer-inner{display:grid;grid-template-columns:1.2fr .8fr .7fr;gap:1rem;align-items:center}.footer-logo{font-size:1.6rem;font-weight:900;color:#fff;margin-bottom:.45rem}.footer-links{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}.footer-copy{text-align:right;font-size:.92rem}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}.reveal.revealed{opacity:1;transform:translateY(0)}.tilt-card:hover{transform:rotate(-1.2deg) translateY(-8px)}.lift-card:hover{transform:translateY(-10px) scale(1.015)}
@media (max-width:1024px){.feature-row,.feature-row.reverse,.download-card,.footer-inner{grid-template-columns:1fr}.feature-row.reverse .feature-media{order:0}.footer-links,.footer-copy{text-align:left;justify-content:flex-start}}
@media (max-width:768px){.page-banner{padding-top:7rem}.section{padding:4rem 0}.timeline-item{grid-template-columns:60px 1fr}.timeline-wrap::before{left:22px}.section-title{font-size:clamp(1.45rem,7vw,2rem)}}