:root{--bg:#FFF9FC;--surface:#fff;--soft:#FFF1F6;--violet-soft:#F6F3FF;--gray:#F8F6F7;--title:#31262C;--text:#51454C;--muted:#7C6E75;--subtle:#A2949B;--pink:#FF5C98;--berry:#D9467B;--peach:#FF96AD;--violet:#8B74E8;--deep-violet:#6250B0;--line:rgba(255,92,152,.15);--shadow:0 14px 38px rgba(70,44,58,.08);--shadow-strong:0 20px 48px rgba(217,70,123,.14);--radius:24px;--container:1220px;--header-h:76px}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button,input,textarea,select{font:inherit}button{color:inherit}.container{width:min(var(--container),calc(100% - 40px));margin:0 auto}.site-header{position:fixed;inset:0 0 auto;z-index:80;background:rgba(255,249,252,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.topbar{position:relative;height:var(--header-h);display:grid;grid-template-columns:1fr 1fr auto;align-items:center;gap:18px}.desktop-nav{display:flex;align-items:center;gap:8px;white-space:nowrap}.nav-right{justify-content:flex-end}.nav-link{min-height:44px;display:inline-flex;align-items:center;padding:0 13px;border-radius:999px;color:var(--muted);font-size:15px}.nav-link:hover,.nav-link:focus-visible,.nav-link.is-active{background:var(--soft);color:var(--berry)}.brand{position:absolute;left:50%;transform:translateX(-50%);display:flex;align-items:center;justify-content:center;min-width:170px;min-height:48px}.brand img{max-height:46px;width:auto}.brand-text{font-size:24px;font-weight:800;letter-spacing:.04em;color:var(--title)}.menu-toggle{width:46px;height:46px;border:1px solid var(--line);border-radius:50%;background:var(--surface);display:grid;place-content:center;gap:4px;cursor:pointer;box-shadow:0 8px 22px rgba(70,44,58,.06)}.menu-toggle span{display:block;width:18px;height:2px;background:var(--title);border-radius:10px}.mobile-actions{display:none}main{padding-top:var(--header-h)}
.hero,.inner-hero{position:relative;isolation:isolate}.hero{padding:82px 0 48px}.hero::before,.inner-hero::before{content:"";position:absolute;z-index:-1;pointer-events:none;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,150,173,.24),rgba(139,116,232,.06) 62%,transparent 72%);top:-150px;right:-120px}.hero-grid{display:grid;grid-template-columns:.86fr 1.35fr .86fr;gap:30px;align-items:center}.hero-side{padding:28px;border-radius:var(--radius);background:rgba(255,255,255,.74);border:1px solid var(--line);box-shadow:var(--shadow)}.hero-side h2{font-size:20px;margin:0 0 8px;color:var(--title)}.hero-side p{margin:0;color:var(--muted)}.hero-center{text-align:center;padding:20px}.eyebrow{margin:0 0 8px;color:var(--berry);font-weight:800;letter-spacing:.08em;font-size:13px}.hero h1,.inner-hero h1{margin:0;color:var(--title);line-height:1.18;letter-spacing:-.035em}.hero h1{font-size:clamp(38px,5vw,66px)}.hero-lead{max-width:760px;margin:22px auto 0;color:var(--muted);font-size:17px}.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:24px}.hero-center .actions{justify-content:center}.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;padding:0 22px;border-radius:999px;background:linear-gradient(135deg,#FF96AD 0%,#FF5C98 50%,#8B74E8 100%);color:#fff;font-weight:800;box-shadow:0 12px 26px rgba(217,70,123,.19)}.button-secondary{background:var(--surface);color:var(--berry);border:1px solid var(--line);box-shadow:none}.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--berry);font-weight:700}.text-link::after{content:"→"}.visual-band{margin-top:42px;min-height:330px;border-radius:32px;overflow:hidden;position:relative;background:linear-gradient(135deg,var(--soft),var(--violet-soft));border:1px solid var(--line);box-shadow:var(--shadow-strong);display:grid;place-items:center}.visual-band::before,.visual-band::after{content:"";position:absolute;border-radius:50%;pointer-events:none}.visual-band::before{width:240px;height:240px;background:rgba(255,92,152,.18);left:9%;top:16%}.visual-band::after{width:300px;height:300px;background:rgba(139,116,232,.13);right:8%;bottom:-24%}.visual-note{position:relative;z-index:2;max-width:620px;text-align:center;padding:40px}.visual-note strong{display:block;color:var(--title);font-size:30px;margin-bottom:10px}.visual-note span{color:var(--muted)}
.section{padding:72px 0}.section-soft{background:var(--soft)}.section-violet{background:var(--violet-soft)}.section-gray{background:var(--gray)}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:28px}.section-head h2{margin:0;color:var(--title);font-size:clamp(28px,3vw,42px);line-height:1.2}.section-head p{max-width:650px;margin:8px 0 0;color:var(--muted)}.section-head .text-link{flex:0 0 auto;margin-bottom:5px}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}.card h3{margin:0 0 8px;color:var(--title);font-size:20px;line-height:1.35}.card p{margin:0;color:var(--muted)}.card .text-link{margin-top:16px}.mini-card{min-height:188px}.tag{display:inline-flex;align-items:center;min-height:30px;padding:0 11px;border-radius:999px;background:var(--soft);color:var(--berry);font-size:13px;font-weight:700;margin-bottom:14px}.story-feature{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}.feature-copy{padding:38px;background:linear-gradient(145deg,#fff,var(--soft));border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow-strong)}.feature-copy h3{font-size:30px;margin:0 0 12px;color:var(--title)}.stack{display:grid;gap:16px}.media-placeholder{aspect-ratio:16/10;border-radius:22px;background:linear-gradient(135deg,rgba(255,150,173,.3),rgba(139,116,232,.18));position:relative;overflow:hidden;border:1px solid var(--line);margin-bottom:16px}.media-placeholder::before{content:"";position:absolute;width:110px;height:110px;border-radius:50%;background:rgba(255,255,255,.68);top:20%;left:15%}.media-placeholder::after{content:"";position:absolute;width:56%;height:42%;border-radius:50% 50% 0 0;background:rgba(255,255,255,.45);bottom:-4%;right:-7%;transform:rotate(-6deg)}.topic-list{counter-reset:topic}.topic-card{position:relative;padding-left:78px}.topic-card::before{counter-increment:topic;content:"0" counter(topic);position:absolute;left:26px;top:23px;color:rgba(217,70,123,.46);font-size:24px;font-weight:900}.split{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center}.split-visual{min-height:420px;border-radius:30px;background:linear-gradient(145deg,var(--soft),var(--violet-soft));border:1px solid var(--line);box-shadow:var(--shadow-strong);position:relative;overflow:hidden}.phone-shape{position:absolute;width:44%;aspect-ratio:9/18;left:28%;top:8%;border:10px solid #fff;border-radius:36px;background:linear-gradient(180deg,#fff 0 13%,#FFF1F6 13% 100%);box-shadow:0 22px 60px rgba(98,80,176,.18)}.phone-shape::before{content:"";position:absolute;top:14px;left:34%;width:32%;height:7px;background:#31262C;border-radius:99px}.phone-shape::after{content:"生活记录 · 兴趣 · 消息 · 隐私";position:absolute;inset:22% 12% auto;text-align:center;color:var(--muted);font-size:13px;line-height:1.8}.principle{display:flex;gap:16px;align-items:flex-start}.icon-dot{width:42px;height:42px;flex:0 0 42px;border-radius:14px;background:linear-gradient(135deg,var(--peach),var(--violet));color:#fff;display:grid;place-items:center;font-weight:900}.quote-note{background:var(--surface);border-left:4px solid var(--peach);border-radius:0 18px 18px 0;padding:20px 22px;color:var(--muted)}.faq-list{display:grid;gap:12px}.faq-list details{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:4px 20px}.faq-list summary{cursor:pointer;min-height:56px;display:flex;align-items:center;font-weight:800;color:var(--title);list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list details p{margin:0 0 20px;color:var(--muted)}
.inner-hero{padding:74px 0 42px}.inner-hero .eyebrow{margin-bottom:12px}.inner-hero h1{font-size:clamp(38px,4.5vw,58px);max-width:850px}.inner-lead{font-size:17px;color:var(--muted);max-width:850px;margin:18px 0 0}.breadcrumb{display:flex;gap:8px;align-items:center;color:var(--subtle);font-size:13px;margin-bottom:22px}.breadcrumb a{color:var(--berry)}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}.article-stack{display:grid;gap:20px}.article-block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}.article-block h2{margin:0 0 12px;color:var(--title);font-size:27px}.article-block h3{margin:24px 0 8px;color:var(--title);font-size:20px}.article-block p{margin:0 0 14px}.article-block p:last-child{margin-bottom:0}.article-block ul,.article-block ol{padding-left:1.2em;margin:12px 0 0}.article-block li{margin:7px 0}.aside-box{position:sticky;top:98px;background:var(--violet-soft);border:1px solid rgba(139,116,232,.13);border-radius:var(--radius);padding:24px}.aside-box h2{margin:0 0 10px;color:var(--title);font-size:20px}.aside-box a{display:flex;align-items:center;min-height:42px;border-bottom:1px solid rgba(98,80,176,.11);color:var(--deep-violet)}.aside-box a:last-child{border-bottom:0}.note-box{padding:22px 24px;border-radius:20px;background:var(--soft);border:1px solid var(--line)}.note-box strong{display:block;color:var(--title);margin-bottom:6px}.steps{display:grid;gap:14px;counter-reset:step}.step{position:relative;padding:20px 22px 20px 70px;background:var(--gray);border-radius:18px}.step::before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:18px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--surface);color:var(--berry);font-weight:900;box-shadow:var(--shadow)}.pill-row{display:flex;flex-wrap:wrap;gap:10px}.pill{min-height:36px;padding:6px 13px;border-radius:999px;background:var(--soft);color:var(--berry);font-weight:700;font-size:14px}.related-links{display:flex;flex-wrap:wrap;gap:12px}.related-links a{min-height:42px;display:inline-flex;align-items:center;padding:0 16px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--berry);font-weight:700}.service-end{text-align:center;padding:38px;border-radius:28px;background:linear-gradient(135deg,var(--soft),var(--violet-soft));border:1px solid var(--line)}.service-end h2{margin:0 0 8px;color:var(--title)}
.site-overlay{position:fixed;inset:var(--header-h) 0 0;z-index:90;background:rgba(49,38,44,.28);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s ease}.site-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.channel-panel{position:fixed;left:0;right:0;top:var(--header-h);z-index:100;max-height:calc(100vh - var(--header-h));overflow:auto;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);box-shadow:0 30px 60px rgba(49,38,44,.16);transform:translateY(-18px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}.channel-panel.is-open{transform:none;opacity:1;visibility:visible;pointer-events:auto}.channel-panel-inner{padding:30px 0 36px}.panel-head{display:flex;justify-content:space-between;gap:30px;align-items:center;margin-bottom:24px}.panel-head h2{margin:0;color:var(--title);font-size:26px}.panel-close,.drawer-close{width:44px;height:44px;border:1px solid var(--line);border-radius:50%;background:var(--surface);font-size:28px;line-height:1;cursor:pointer}.channel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px}.channel-group h3{margin:0 0 8px;color:var(--berry);font-size:15px}.channel-item{display:block;padding:13px 0;border-bottom:1px solid var(--line)}.channel-item strong{display:block;color:var(--title)}.channel-item span{display:block;margin-top:3px;color:var(--muted);font-size:13px;line-height:1.55}.mobile-drawer{display:none;position:fixed;z-index:110;top:0;right:0;height:100dvh;width:min(88vw,380px);background:var(--surface);box-shadow:-24px 0 60px rgba(49,38,44,.15);transform:translateX(105%);visibility:hidden;pointer-events:none;transition:.23s ease;overflow:auto}.mobile-drawer.is-open{transform:none;visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);display:flex;justify-content:space-between;align-items:center;padding:18px;border-bottom:1px solid var(--line);z-index:2}.drawer-brand{font-size:21px;font-weight:900;color:var(--title)}.drawer-brand img{max-height:38px;width:auto}.drawer-nav{padding:10px 18px 28px}.drawer-nav a{display:flex;align-items:center;min-height:50px;border-bottom:1px solid var(--line);color:var(--text)}.site-footer{background:#30252B;color:#FFEAF2;padding:58px 0 28px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:28px}.footer-brand{display:inline-flex;align-items:center;min-height:48px;font-size:24px;font-weight:900}.footer-brand img{max-height:44px;width:auto}.footer-brand-block p{color:rgba(255,234,242,.72);max-width:330px}.site-footer h2{font-size:15px;margin:8px 0 14px;color:#fff}.site-footer a:not(.footer-brand){display:block;min-height:35px;color:rgba(255,234,242,.78);font-size:14px}.site-footer a:hover,.site-footer a:focus-visible{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:30px;border-top:1px solid rgba(255,234,242,.12);margin-top:34px;padding-top:22px;color:rgba(255,234,242,.62);font-size:13px}.footer-bottom p{margin:0;max-width:760px}.mobile-bottom-nav{display:none}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(139,116,232,.45);outline-offset:3px}
@media(max-width:1080px){.nav-link{padding:0 8px;font-size:14px}.brand{min-width:150px}.hero-grid{grid-template-columns:1fr 1.45fr 1fr}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}.footer-brand-block{grid-row:span 2}}
@media(max-width:820px){:root{--header-h:68px}.container{width:min(100% - 32px,var(--container))}.desktop-nav{display:none}.topbar{grid-template-columns:1fr auto auto;gap:10px}.brand{position:static;left:auto;transform:none;justify-content:flex-start;min-width:0}.brand-text{font-size:21px}.mobile-actions{display:block}.mobile-experience{min-height:44px;padding:0 16px;display:inline-flex;align-items:center;border-radius:999px;background:var(--soft);color:var(--berry);font-weight:800}.channel-panel{display:none}.mobile-drawer{display:block}.menu-open{overflow:hidden}.hero{padding:54px 0 34px}.hero-grid{grid-template-columns:1fr}.hero-center{grid-row:1;padding:0 4px 14px;text-align:left}.hero-center .actions{justify-content:flex-start}.hero-side{padding:22px}.hero h1{font-size:clamp(38px,12vw,54px)}.hero-lead{font-size:16px}.visual-band{margin-top:28px;min-height:270px}.visual-note strong{font-size:26px}.section{padding:54px 0}.section-head{align-items:start;flex-direction:column;gap:10px}.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}.story-feature,.split,.content-layout{grid-template-columns:1fr}.split-visual{min-height:340px}.aside-box{position:static}.footer-grid{grid-template-columns:1fr 1fr;padding-bottom:82px}.footer-brand-block{grid-column:1/-1;grid-row:auto}.footer-bottom{flex-direction:column;padding-bottom:72px}.mobile-bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:70;background:rgba(255,255,255,.96);backdrop-filter:blur(15px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom-nav a{min-height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;color:var(--subtle);font-size:11px}.mobile-bottom-nav a span{font-size:18px;line-height:1}.mobile-bottom-nav a b{font-weight:700}.mobile-bottom-nav a.is-active{color:var(--berry);background:var(--soft)}body{padding-bottom:calc(58px + env(safe-area-inset-bottom))}.site-footer{margin-bottom:calc(-58px - env(safe-area-inset-bottom));padding-bottom:calc(28px + 58px + env(safe-area-inset-bottom))}.article-block{padding:24px}.inner-hero{padding:52px 0 32px}.inner-hero h1{font-size:clamp(36px,11vw,50px)}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}.feature-copy{padding:28px}.topic-card{padding-left:66px}.topic-card::before{left:20px}.visual-note{padding:28px 20px}.button{width:100%}.actions{align-items:stretch}.related-links{display:grid}.related-links a{justify-content:center}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}