:root{
--brand:#1a1a2e;
--brand-2:#16213e;
--accent:#e94560;
--accent-2:#f5a623;
--accent-soft:rgba(233,69,96,.12);
--bg:#f7f8fa;
--bg-alt:#eef1f6;
--card:#ffffff;
--text:#1f2430;
--muted:#5b6472;
--line:#e6e9ef;
--radius:16px;
--radius-sm:10px;
--shadow:0 6px 24px rgba(26,26,46,.08);
--shadow-lg:0 18px 48px rgba(26,26,46,.16);
--maxw:1180px;
--glass:rgba(255,255,255,.72);
--glass-border:rgba(255,255,255,.55);
--ease:cubic-bezier(.4,0,.2,1);
}
html[data-theme="dark"]{
--bg:#0f1117;
--bg-alt:#12151d;
--card:#181c25;
--text:#e8ecf3;
--muted:#9aa4b2;
--line:#262c38;
--shadow:0 6px 24px rgba(0,0,0,.45);
--shadow-lg:0 18px 48px rgba(0,0,0,.6);
--glass:rgba(24,28,37,.72);
--glass-border:rgba(255,255,255,.08);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
background:var(--bg);
background-image:radial-gradient(circle at 12% 0%,rgba(233,69,96,.06),transparent 42%),radial-gradient(circle at 88% 8%,rgba(245,166,35,.07),transparent 40%);
background-attachment:fixed;
color:var(--text);
line-height:1.75;
-webkit-font-smoothing:antialiased;
-moz-osx-font-smoothing:grayscale;
transition:background-color .3s var(--ease),color .3s var(--ease);
overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
ul,ol{list-style:none}
button{font-family:inherit}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:72px 0;position:relative}
.section-head{text-align:center;margin-bottom:44px}
.section-head h2{font-size:clamp(22px,3vw,32px);letter-spacing:.5px;line-height:1.35}
.section-head p{color:var(--muted);margin-top:12px;max-width:720px;margin-left:auto;margin-right:auto;font-size:15px}
.eyebrow{
display:inline-block;font-size:12px;letter-spacing:2px;color:var(--accent);
font-weight:700;text-transform:uppercase;margin-bottom:12px;
padding:4px 14px;border-radius:999px;background:var(--accent-soft);
}
.btn{
display:inline-flex;align-items:center;justify-content:center;gap:8px;
padding:12px 26px;border-radius:999px;font-weight:600;font-size:15px;
border:none;cursor:pointer;white-space:nowrap;
transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background:linear-gradient(135deg,var(--accent),#ff6b81);color:#fff;box-shadow:0 6px 18px rgba(233,69,96,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(233,69,96,.42)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.card{
background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
box-shadow:var(--shadow);
transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g2,.g3,.g4{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.g2,.g3,.g4{grid-template-columns:1fr}}

/* ===== header ===== */
.site-header{
position:sticky;top:0;z-index:100;
background:var(--glass);
-webkit-backdrop-filter:blur(16px) saturate(160%);
backdrop-filter:blur(16px) saturate(160%);
border-bottom:1px solid var(--line);
transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.5px;flex:none}
.logo .mark{
width:34px;height:34px;border-radius:10px;
background:linear-gradient(135deg,var(--accent),var(--accent-2));
display:grid;place-items:center;color:#fff;font-size:16px;font-weight:800;
box-shadow:0 4px 12px rgba(233,69,96,.35);
transition:transform .3s var(--ease);
}
.logo:hover .mark{transform:rotate(-8deg) scale(1.06)}
.nav-links{display:flex;gap:24px;font-size:15px}
.nav-links a{color:var(--muted);font-weight:500;position:relative;padding:4px 0}
.nav-links a::after{
content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;
background:linear-gradient(90deg,var(--accent),var(--accent-2));
transition:width .3s var(--ease);
}
.nav-links a:hover{color:var(--accent)}
.nav-links a:hover::after{width:100%}
.nav-tools{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
background:var(--card);display:grid;place-items:center;cursor:pointer;
color:var(--text);font-size:16px;
transition:transform .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease);
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);box-shadow:0 6px 16px rgba(233,69,96,.18)}
.search-box{
display:flex;align-items:center;gap:8px;border:1px solid var(--line);
border-radius:999px;padding:6px 8px 6px 16px;background:var(--card);
transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.search-box input{border:none;outline:none;background:transparent;color:var(--text);width:150px;font-size:14px}
.search-box input::placeholder{color:var(--muted)}
.search-box button{
border:none;background:var(--accent-soft);color:var(--accent);cursor:pointer;
font-weight:700;font-size:13px;padding:6px 14px;border-radius:999px;
transition:background .25s var(--ease),color .25s var(--ease);
}
.search-box button:hover{background:var(--accent);color:#fff}
.menu-toggle{display:none}
@media(max-width:980px){
.nav-links{
display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;
background:var(--glass);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
padding:18px 20px;border-bottom:1px solid var(--line);gap:14px;
box-shadow:var(--shadow);
}
.nav-links.open{display:flex;animation:slideDown .3s var(--ease)}
.menu-toggle{display:grid}
.search-box input{width:100px}
}
@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}

/* ===== hero ===== */
.hero{
position:relative;overflow:hidden;
background:linear-gradient(135deg,#1a1a2e 0%,#16213e 45%,#2d1b3d 100%);
color:#fff;padding:88px 0 96px;
}
.hero::before{
content:"";position:absolute;inset:0;pointer-events:none;
background:
radial-gradient(circle at 82% 18%,rgba(233,69,96,.42),transparent 46%),
radial-gradient(circle at 8% 92%,rgba(245,166,35,.28),transparent 42%),
radial-gradient(circle at 50% 120%,rgba(233,69,96,.18),transparent 50%);
animation:heroGlow 12s ease-in-out infinite alternate;
}
@keyframes heroGlow{
0%{opacity:.85;transform:scale(1)}
100%{opacity:1;transform:scale(1.08)}
}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
.hero .eyebrow{background:rgba(255,255,255,.1);color:var(--accent-2);border:1px solid rgba(255,255,255,.12)}
.hero h1{font-size:clamp(26px,4vw,44px);line-height:1.25;margin:8px 0 20px;letter-spacing:.5px;font-weight:800}
.hero h1 .hl{
background:linear-gradient(120deg,var(--accent-2),#ffd166);
-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{color:#c9d0dc;font-size:16px;max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.28)}
.hero .btn-ghost:hover{border-color:var(--accent-2);color:var(--accent-2);background:rgba(255,255,255,.06)}
.hero-stats{display:flex;gap:36px;margin-top:44px;flex-wrap:wrap}
.hero-stats .num{font-size:28px;font-weight:800;color:var(--accent-2);line-height:1.2;font-variant-numeric:tabular-nums}
.hero-stats .lbl{font-size:13px;color:#aab3c2;margin-top:2px}
.hero-visual{position:relative}
.hero-visual::after{
content:"";position:absolute;inset:-14px;border-radius:26px;z-index:-1;
background:linear-gradient(135deg,rgba(233,69,96,.35),rgba(245,166,35,.25));
filter:blur(28px);opacity:.7;
}
.hero-visual svg{
width:100%;height:auto;border-radius:18px;
box-shadow:0 24px 60px rgba(0,0,0,.45);
animation:floatY 7s ease-in-out infinite;
}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@media(max-width:900px){
.hero{padding:64px 0 72px}
.hero .container{grid-template-columns:1fr;gap:36px}
.hero-visual{order:-1}
.hero-stats{gap:26px}
}

/* ===== breadcrumb ===== */
.breadcrumb{font-size:13px;color:var(--muted);padding:18px 0}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{margin:0 6px}

/* ===== carousel ===== */
.carousel{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.slides{display:flex;transition:transform .6s var(--ease)}
.slide{min-width:100%;padding:44px;background:linear-gradient(135deg,#1a1a2e,#2d1b3d);color:#fff}
.slide:nth-child(2){background:linear-gradient(135deg,#16213e,#0f3460)}
.slide:nth-child(3){background:linear-gradient(135deg,#3d1b2e,#6d213c)}
.slide h3{font-size:22px;margin-bottom:12px;line-height:1.4}
.slide p{color:#c9d0dc;font-size:15px;max-width:640px}
.slide .tag{
display:inline-block;font-size:12px;padding:4px 14px;border-radius:999px;
background:rgba(233,69,96,.22);color:var(--accent-2);margin-bottom:16px;font-weight:600;
}
.carousel-dots{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;gap:8px}
.carousel-dots button{
width:10px;height:10px;border-radius:50%;border:none;
background:rgba(255,255,255,.4);cursor:pointer;padding:0;
transition:width .3s var(--ease),background .3s var(--ease);
}
.carousel-dots button:hover{background:rgba(255,255,255,.7)}
.carousel-dots button.active{background:var(--accent-2);width:26px;border-radius:999px}
@media(max-width:600px){.slide{padding:28px 22px}.slide h3{font-size:18px}}

/* ===== article cards ===== */
.article-card{padding:26px;display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden}
.article-card::before{
content:"";position:absolute;top:0;left:0;right:0;height:3px;
background:linear-gradient(90deg,var(--accent),var(--accent-2));
transform:scaleX(0);transform-origin:left;
transition:transform .35s var(--ease);
}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(233,69,96,.35)}
.article-card:hover::before{transform:scaleX(1)}
.article-card .meta{font-size:12px;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap}
.article-card .meta span:first-child{
color:var(--accent);font-weight:600;background:var(--accent-soft);
padding:2px 10px;border-radius:999px;
}
.article-card h3{font-size:17px;line-height:1.5;transition:color .25s var(--ease)}
.article-card:hover h3{color:var(--accent)}
.article-card p{font-size:14px;color:var(--muted);flex:1}
.article-card .read{font-size:14px;color:var(--accent);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.article-card .read:hover{gap:9px}

/* ===== feature ===== */
.feature{padding:28px;display:flex;flex-direction:column;gap:12px}
.feature:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(233,69,96,.3)}
.feature .ico{
width:48px;height:48px;border-radius:14px;
background:linear-gradient(135deg,var(--accent-soft),rgba(245,166,35,.14));
display:grid;place-items:center;color:var(--accent);font-size:22px;
transition:transform .3s var(--ease),background .3s var(--ease);
}
.feature:hover .ico{transform:scale(1.1) rotate(-6deg);background:linear-gradient(135deg,rgba(233,69,96,.22),rgba(245,166,35,.22))}
.feature h3{font-size:17px}
.feature p{font-size:14px;color:var(--muted)}

/* ===== faq ===== */
.faq-item{
border:1px solid var(--line);border-radius:12px;margin-bottom:12px;
background:var(--card);overflow:hidden;
transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.faq-item:hover{border-color:rgba(233,69,96,.4)}
.faq-item.open{border-color:var(--accent);box-shadow:0 8px 24px rgba(233,69,96,.12)}
.faq-q{
width:100%;text-align:left;padding:18px 22px;background:transparent;border:none;
cursor:pointer;font-size:15px;font-weight:600;color:var(--text);
display:flex;justify-content:space-between;align-items:center;gap:12px;
transition:color .25s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-q .plus{
color:var(--accent);font-size:22px;line-height:1;
transition:transform .35s var(--ease);flex:none;
}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s var(--ease)}
.faq-a p{padding:0 22px 20px;color:var(--muted);font-size:14px}

/* ===== steps ===== */
.step{display:flex;gap:18px;padding:24px;align-items:flex-start;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.step .idx{
flex:none;width:44px;height:44px;border-radius:50%;
background:linear-gradient(135deg,var(--accent),var(--accent-2));
color:#fff;display:grid;place-items:center;font-weight:800;
box-shadow:0 6px 16px rgba(233,69,96,.3);
}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted)}

/* ===== case ===== */
.case-card{padding:26px;position:relative;overflow:hidden}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.case-card .quote{
font-size:15px;color:var(--text);margin:14px 0;font-style:italic;
position:relative;padding-left:18px;
}
.case-card .quote::before{
content:"“";position:absolute;left:0;top:-6px;
font-size:34px;color:var(--accent);opacity:.5;font-style:normal;line-height:1;
}
.case-card .who{display:flex;align-items:center;gap:12px;margin-top:18px}
.case-card .avatar{
width:44px;height:44px;border-radius:50%;
background:linear-gradient(135deg,var(--accent),var(--accent-2));
display:grid;place-items:center;color:#fff;font-weight:700;flex:none;
}
.case-card .who .name{font-weight:600;font-size:14px}
.case-card .who .role{font-size:12px;color:var(--muted)}

/* ===== news ===== */
.news-item{display:flex;gap:18px;padding:22px;align-items:flex-start}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(233,69,96,.3)}
.news-item .date{
flex:none;width:68px;text-align:center;border-right:2px solid var(--accent);
padding-right:16px;
}
.news-item .date .d{font-size:22px;font-weight:800;color:var(--accent);line-height:1.2}
.news-item .date .m{font-size:12px;color:var(--muted)}
.news-item h3{font-size:16px;margin-bottom:6px;line-height:1.5}
.news-item p{font-size:14px;color:var(--muted)}

/* ===== contact ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
@media(max-width:800px){.contact-grid{grid-template-columns:1fr}}
.contact-info li{
display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line);
transition:padding-left .25s var(--ease);
}
.contact-info li:hover{padding-left:6px}
.contact-info li:last-child{border-bottom:none}
.contact-info .k{color:var(--muted);min-width:90px;font-size:14px;flex:none}
.contact-info .v{font-weight:600;font-size:14px;word-break:break-word}
.contact-form{padding:30px;display:flex;flex-direction:column;gap:14px}
.contact-form input,.contact-form textarea{
padding:13px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);
background:var(--bg);color:var(--text);font-family:inherit;font-size:14px;
outline:none;resize:vertical;
transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.contact-form input:focus,.contact-form textarea:focus{
border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:var(--card);
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:var(--muted)}

/* ===== footer ===== */
.site-footer{
background:linear-gradient(160deg,#1a1a2e,#12121f 60%,#1a1224);
color:#c9d0dc;padding:60px 0 26px;margin-top:48px;position:relative;overflow:hidden;
}
.site-footer::before{
content:"";position:absolute;top:-40%;right:-10%;width:420px;height:420px;border-radius:50%;
background:radial-gradient(circle,rgba(233,69,96,.18),transparent 70%);pointer-events:none;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;position:relative;z-index:1}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px}
.site-footer a{color:#aab3c2;font-size:14px;display:block;padding:5px 0;transition:color .25s var(--ease),transform .25s var(--ease)}
.site-footer a:hover{color:var(--accent-2);transform:translateX(4px)}
.site-footer p{font-size:13px;color:#8b95a5;line-height:1.9}
.footer-bottom{
border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:22px;
display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
font-size:13px;color:#8b95a5;position:relative;z-index:1;
}
.badge{
display:inline-flex;align-items:center;gap:6px;font-size:12px;
padding:5px 12px;border-radius:999px;
background:rgba(233,69,96,.15);color:var(--accent-2);margin-top:10px;
border:1px solid rgba(233,69,96,.25);
}

/* ===== back to top ===== */
#backTop{
position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:50%;
background:linear-gradient(135deg,var(--accent),#ff6b81);color:#fff;border:none;
cursor:pointer;display:grid;place-items:center;font-size:18px;
box-shadow:0 8px 22px rgba(233,69,96,.42);
opacity:0;visibility:hidden;transform:translateY(14px) scale(.9);
transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
z-index:99;
}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
#backTop:hover{transform:translateY(-3px) scale(1.06);box-shadow:0 12px 28px rgba(233,69,96,.55)}

/* ===== reveal ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
.reveal{opacity:1;transform:none;transition:none}
.hero-visual svg{animation:none}
.hero::before{animation:none}
*{scroll-behavior:auto}
}

/* ===== prose ===== */
.prose h2{font-size:24px;margin:0 0 16px;line-height:1.4;letter-spacing:.3px}
.prose h2:not(:first-child){margin-top:34px}
.prose h3{font-size:18px;margin:26px 0 10px;line-height:1.45}
.prose p{color:var(--muted);margin-bottom:14px;font-size:15px}
.prose ul{margin:0 0 16px 0}
.prose ul li{
position:relative;padding-left:22px;color:var(--muted);
font-size:15px;margin-bottom:9px;
transition:color .25s var(--ease);
}
.prose ul li::before{
content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;
background:linear-gradient(135deg,var(--accent),var(--accent-2));
}
.prose ul li:hover{color:var(--text)}
.prose ul li a{color:var(--accent);font-weight:600}
.prose ul li a:hover{text-decoration:underline}

/* ===== author box ===== */
.author-box{
display:flex;gap:18px;padding:26px;align-items:center;margin-top:30px;
background:linear-gradient(135deg,var(--card),var(--bg-alt));
}
.author-box:hover{box-shadow:var(--shadow-lg)}
.author-box .avatar{
width:58px;height:58px;border-radius:50%;
background:linear-gradient(135deg,var(--accent),var(--accent-2));
display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;flex:none;
box-shadow:0 6px 18px rgba(233,69,96,.3);
}
.author-box .name{font-weight:700;font-size:16px}
.author-box .desc{font-size:13px;color:var(--muted);margin-top:2px}

/* ===== tagline ===== */
.tagline{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.tagline span{
font-size:12px;padding:5px 14px;border-radius:999px;
background:var(--accent-soft);color:var(--accent);font-weight:600;
transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.tagline span:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}

/* ===== legal grid ===== */
#legal{position:relative;z-index:1}
@media(max-width:800px){
#legal{grid-template-columns:1fr!important}
.footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ===== misc responsive ===== */
@media(max-width:600px){
.section{padding:52px 0}
.section-head{margin-bottom:32px}
.hero-actions .btn{flex:1;justify-content:center}
.hero-stats{gap:22px}
.hero-stats .num{font-size:24px}
.contact-form{padding:22px}
.article-card,.feature,.case-card,.news-item,.step{padding:20px}
.news-item .date{width:56px;padding-right:12px}
#backTop{right:16px;bottom:16px;width:44px;height:44px}
}
@media(hover:none){
.card:hover,.article-card:hover,.feature:hover,.news-item:hover,.case-card:hover,.step:hover{transform:none}
}