/* ============================================
   装修魔方 (MoFun) — Apple Design Language
   Brand: Blue #2E5CFF · Orange #FF6B35
   ============================================ */

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

:root{
  --p:#2E5CFF; --pd:#1a3fa8; --pl:#e8edff;
  --a:#FF6B35; --ad:#d44d1a;
  --bg:#fff; --bg2:#f5f5f7; --bg3:#fafafa;
  --text:#1d1d1f; --text2:#86868b; --text3:#6e6e73;
  --border:#d2d2d7; --border2:#e8e8ed;
  --nav-h:48px; --max-w:1068px; --max-w-wide:1400px;
  --r-sm:6px; --r-md:10px; --r-lg:16px;
  --t:0.4s var(--glide);
  --font:-apple-system,'SF Pro Display','SF Pro Text','Helvetica Neue','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-display:"Noto Serif SC","Songti SC","PingFang SC",serif;
  --font-body:'SF Pro Text','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;

  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --glide: cubic-bezier(0.16, 1, 0.3, 1);
  --radius-card: 14px;
  --radius-pill: 980px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 4px 24px rgba(0,0,0,0.08);
  --card-border: #e8e8ed;
  --card-hover-border: #d2d2d7;
  --warm:#fdf8f3;
  --gold:#d4a84b;
  --shadow-card:0 2px 12px rgba(0,0,0,0.06);
  --shadow-card-hover:0 8px 32px rgba(0,0,0,0.10);
}

html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 8px);background:#fff}
body{
  font-family:var(--font);color:var(--text);background:var(--bg);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  font-weight:400;
}
a{color:var(--p);text-decoration:none;transition:var(--t)}
a:hover{color:var(--pd)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:var(--max-w);margin:0 auto;padding:0 22px}
.container-wide{max-width:var(--max-w-wide);margin:0 auto;padding:0 22px}

/* ---- Typography ---- */
.section-label{
  font-size:.75rem;font-weight:600;letter-spacing:.04em;
  color:var(--p);text-transform:uppercase;margin-bottom:8px;
}
.section-title{
  font-size:clamp(2rem,4.5vw,3.2rem);font-weight:700;font-family:var(--font-display);line-height:1.15;margin-bottom:12px;letter-spacing:-.015em;
}
.section-desc{
  font-size:clamp(1rem,1.5vw,1.2rem);color:var(--text2);
  max-width:620px;margin:0 auto 56px;line-height:1.65;
}
.text-gradient{
  background:linear-gradient(135deg,var(--p),#6d8cff);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}

/* ---- Buttons (Apple-style) ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 28px;border-radius:980px;font-weight:500;
  font-size:.95rem;cursor:pointer;transition:var(--t);
  border:1px solid transparent;white-space:nowrap;letter-spacing:-.01em;
}
.btn-lg{padding:13px 34px;font-size:1.05rem}
.btn-p{
  background:var(--p);color:#fff;
  --tw-shadow:0 1px 2px rgba(0,0,0,.12);
  box-shadow:var(--tw-shadow);
}
.btn-p:hover{background:var(--pd);color:#fff;transform:translateY(-1px)}
.btn-o{
  background:transparent;color:var(--p);border-color:var(--p);
}
.btn-o:hover{background:var(--pl);color:var(--pd)}
.btn-w{
  background:#fff;color:var(--p);font-weight:600;
}
.btn-w:hover{background:#f5f5f5}
.btn-ol{
  background:transparent;color:#fff;border-color:rgba(255,255,255,.5);
  font-weight:400;
}
.btn-ol:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}

/* ---- Navbar (Apple-style) ---- */
.navbar{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:1000;
  background:rgba(255,255,255,.72);backdrop-filter:blur(40px) saturate(180%);
  -webkit-backdrop-filter:blur(40px) saturate(180%);
  border-bottom:1px solid transparent;transition:var(--t);
}
.navbar.scrolled{border-bottom-color:var(--border2)}
.nav-container{
  display:flex;align-items:center;justify-content:space-between;
  height:100%;max-width:var(--max-w);margin:0 auto;padding:0 22px;
}
.nav-logo{
  display:flex;align-items:center;gap:8px;color:var(--text);
  font-size:.95rem;font-weight:600;
}
.nav-logo:hover{color:var(--text)}
.nav-logo-mark{width:24px;height:24px}
.nav-logo-grid{
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  gap:1.5px;width:100%;height:100%;
}
.nav-logo-grid span{border-radius:1.5px}
.nav-logo-grid span:nth-child(1){background:#2E5CFF}
.nav-logo-grid span:nth-child(2){background:#FFD700}
.nav-logo-grid span:nth-child(3){background:#9B59B6}
.nav-logo-grid span:nth-child(4){background:#27AE60}
.nav-logo-grid span:nth-child(5){background:#FF6B35}
.nav-logo-grid span:nth-child(6){background:#1ABC9C}
.nav-logo-grid span:nth-child(7){background:#2E5CFF}
.nav-logo-grid span:nth-child(8){background:#FFD700}
.nav-logo-grid span:nth-child(9){background:#9B59B6}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-link{
  padding:4px 14px;border-radius:var(--r-sm);
  font-size:.82rem;font-weight:500;color:var(--text2);
  transition:var(--t);letter-spacing:-.01em;
}
.nav-link:hover,.nav-link.active{color:var(--text);background:var(--bg2)}
.nav-cta{
  padding:5px 16px;background:var(--p);color:#fff;
  border-radius:980px;font-size:.82rem;font-weight:500;
  margin-left:6px;
}
.nav-cta:hover{background:var(--pd);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:4px;cursor:pointer;padding:6px}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text2);border-radius:1px;transition:var(--t)}

/* ---- Hero ---- */
.hero{
  min-height:100vh;display:flex;align-items:center;position:relative;
  overflow:hidden;padding:calc(var(--nav-h) + 20px) 0 40px;
  background:#fff;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-gradient{position:absolute;inset:0;
  background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(46,92,255,.06) 0%,transparent 60%),
              radial-gradient(ellipse 60% 40% at 80% 80%,rgba(255,107,53,.04) 0%,transparent 60%);
}
.hero-content{position:relative;z-index:1;text-align:center;max-width:820px;margin:0 auto}
.hero-badge{
  display:inline-block;padding:4px 14px;
  background:var(--pl);border-radius:980px;
  font-size:.8rem;font-weight:500;color:var(--p);margin-bottom:20px;
}
.hero-badge span{font-weight:400}
.hero-title{
  font-size:clamp(2.6rem,7vw,4.5rem);font-weight:700;
  line-height:1.08;margin-bottom:18px;letter-spacing:-.025em;
}
.hero-subtitle{
  font-size:clamp(1rem,1.8vw,1.25rem);color:var(--text2);
  margin-bottom:32px;line-height:1.7;max-width:680px;margin-left:auto;margin-right:auto;
  font-weight:400;
}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:44px}
.hero-trust{display:flex;gap:48px;justify-content:center}
.trust-item{text-align:center}
.trust-num{display:block;font-size:2rem;font-weight:600;color:var(--text);line-height:1.2;letter-spacing:-.02em}
.trust-label{font-size:.82rem;color:var(--text2)}
.trust-num .suffix{font-size:1.2rem;font-weight:400;color:var(--text2)}
.scroll-indicator{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:4px;
  color:var(--text2);font-size:.75rem;animation:bounce 2.5s infinite;
  opacity:.5;
}
.scroll-arrow{width:14px;height:14px;border-right:1.5px solid var(--text2);border-bottom:1.5px solid var(--text2);transform:rotate(45deg);animation:fade-arrow 2.5s infinite}


/* ---- Filter Buttons ---- */
.filter-btn{
  padding:5px 14px;border-radius:980px;border:1px solid var(--border2);
  background:var(--bg);font-size:.8rem;font-weight:500;
  color:var(--text2);cursor:pointer;transition:var(--t);font-family:var(--font);
}
.filter-btn:hover{border-color:var(--p);color:var(--p)}
.filter-btn.active{background:var(--p);border-color:var(--p);color:#fff}

/* ---- Pain Section ---- */
.pain{padding:120px 0;background:var(--bg2);text-align:center}
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}
.pain-card{
  background:var(--bg);padding:40px 28px;border-radius:var(--r-lg);
  text-align:left;border:1px solid var(--border2);transition:var(--t);
}
.pain-card:hover{border-color:var(--p);background:var(--bg3);box-shadow:var(--shadow-sm)}
.pain-num{font-size:.75rem;font-weight:600;color:var(--text2);margin-bottom:8px;letter-spacing:.04em}
.pain-card h3{font-size:1.1rem;font-weight:600;margin-bottom:10px}
.pain-card p{font-size:.92rem;color:var(--text2);line-height:1.7}

/* ---- Tools Section ---- */
.tools{padding:130px 0;text-align:center}
.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tool-card{border:1px solid var(--border2);
  padding:32px 24px;border-radius:var(--r-lg);text-align:left;
  transition:var(--t);cursor:default;
}
.tool-card:hover{background:var(--bg3);border-color:var(--p);}
.tool-card-icon{width:40px;height:40px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;font-size:1.2rem;margin-bottom:14px}
.tool-card h3{font-size:1.05rem;font-weight:600;margin-bottom:8px}
.tool-card p{font-size:.9rem;color:var(--text2);line-height:1.65;margin-bottom:14px}
.tool-link{font-size:.85rem;font-weight:500;color:var(--p);display:inline-flex;align-items:center;gap:4px}
.tool-link:hover{color:var(--pd)}
.tool-link:hover::after{transform:translateX(2px)}
.tool-link::after{content:'→';transition:var(--t);display:inline-block}

/* ---- Rubik's Cube Section ---- */
.model{padding:130px 0;background:var(--bg2);text-align:center;overflow:hidden}
.rubik-wrapper{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-top:40px}
.rubik-scene{display:flex;flex-direction:column;align-items:center;gap:24px;perspective:800px}
.rubik-cube{
  width:220px;height:220px;position:relative;
  transform-style:preserve-3d;
  transition:transform .8s cubic-bezier(.25,.1,.25,1);
  cursor:grab;
}
.rubik-cube:active{cursor:grabbing}
.rubik-face{
  position:absolute;width:220px;height:220px;
  border-radius:12px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  backface-visibility:visible;
  box-shadow:0 0 0 1px rgba(0,0,0,.04);
}
.rubik-grid{
  display:grid;grid-template-columns:1fr 1fr 1fr;grid-template-rows:1fr 1fr 1fr;
  gap:4px;padding:8px;width:100%;height:100%;
}
.rubik-grid span{border-radius:4px;opacity:.92;transition:var(--t);display:flex;align-items:center;justify-content:center;font-size:.48rem;font-weight:600;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.25);line-height:1.2;font-family:var(--font);word-break:keep-all}
.rubik-label{
  position:absolute;bottom:10px;left:50%;transform:translateX(-50%);
  font-size:.75rem;font-weight:600;color:rgba(255,255,255,.9);
  letter-spacing:.04em;text-shadow:0 1px 4px rgba(0,0,0,.15);
}
.rubik-front .rubik-grid span{background:#2E5CFF}
.rubik-back .rubik-grid span{background:#FFD700}
.rubik-left .rubik-grid span{background:#9B59B6}
.rubik-right .rubik-grid span{background:#27AE60}
.rubik-top .rubik-grid span{background:#FF6B35}
.rubik-bottom .rubik-grid span{background:#1ABC9C}

.rubik-front{transform:translateZ(110px)}
.rubik-back{transform:rotateY(180deg) translateZ(110px)}
.rubik-left{transform:rotateY(-90deg) translateZ(110px)}
.rubik-right{transform:rotateY(90deg) translateZ(110px)}
.rubik-top{transform:rotateX(90deg) translateZ(110px)}
.rubik-bottom{transform:rotateX(-90deg) translateZ(110px)}

.rubik-controls{display:flex;gap:8px}
.rubik-btn{
  padding:5px 14px;border-radius:980px;border:1px solid var(--border);
  background:var(--bg);font-size:.78rem;font-weight:500;
  color:var(--text2);cursor:pointer;transition:var(--t);font-family:var(--font);
}
.rubik-btn:hover{border-color:var(--p);color:var(--p)}
.rubik-btn.active{background:var(--p);border-color:var(--p);color:#fff}

.rubik-dims{display:flex;flex-direction:column;gap:10px;text-align:left;max-width:440px}
.dim-card{
  display:flex;align-items:center;gap:14px;
  padding:14px 18px;border-radius:var(--r-md);
  background:var(--bg);border:1px solid transparent;
  transition:var(--t);
}
.dim-card:hover{border-color:var(--p);background:var(--bg3);box-shadow:var(--shadow-sm)}
.dim-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;margin-top:2px}
.dim-card h4{font-size:.92rem;font-weight:600;margin-bottom:1px}
.dim-card p{font-size:.82rem;color:var(--text2);margin:0;line-height:1.5}

/* ---- Cases ---- */
.cases{padding:130px 0;text-align:center}
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.case-card{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border2);transition:var(--t);text-align:left;background:var(--bg)}
.case-card:hover{border-color:var(--card-hover-border);box-shadow:var(--shadow-md);transform:translateY(-1px)}
.case-img{height:200px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.case-body{padding:22px}
.case-tags{display:flex;gap:6px;margin-bottom:10px;flex-wrap:wrap}
.case-tag{padding:2px 10px;background:var(--pl);color:var(--p);border-radius:980px;font-size:.72rem;font-weight:500}
.case-body h3{font-size:1rem;font-weight:600;margin-bottom:4px}
.case-body>p{font-size:.84rem;color:var(--text2);margin-bottom:10px}
.case-stats{display:flex;gap:16px;font-size:.82rem;color:var(--text2)}
.case-stats strong{color:var(--text);font-weight:600}
.cases-more{margin-top:40px}

/* ---- About ---- */
.about{padding:130px 0;background:var(--bg2);text-align:center}
.about-content{display:grid;grid-template-columns:1.2fr .9fr;gap:56px;text-align:left;margin-top:40px}
.about-text p{font-size:.95rem;color:var(--text2);margin-bottom:14px;line-height:1.8}
.about-sign{padding:16px 0;border-top:1px solid var(--border2);margin:20px 0}
.about-sign strong{display:block;font-size:1.05rem}
.about-sign span{font-size:.84rem;color:var(--text2)}
.about-values{display:flex;flex-direction:column;gap:14px}
.value-item{display:flex;gap:12px;align-items:flex-start}
.value-icon{font-size:1.2rem;flex-shrink:0;margin-top:1px}
.value-item strong{display:block;font-size:.9rem;margin-bottom:1px}
.value-item p{font-size:.82rem;color:var(--text2);margin:0}
.about-timeline h3{font-size:1.05rem;font-weight:600;margin-bottom:18px}
.timeline{position:relative;padding-left:22px}
.timeline::before{content:'';position:absolute;left:5px;top:0;bottom:0;width:1px;background:var(--border)}
.timeline-item{position:relative;padding-bottom:22px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{content:'';position:absolute;left:-18px;top:5px;width:8px;height:8px;border-radius:50%;background:var(--border);border:2px solid var(--bg2)}
.timeline-item.current::before{background:var(--p);box-shadow:0 0 0 3px var(--pl)}
.timeline-year{font-size:.82rem;font-weight:600;color:var(--p);letter-spacing:-.01em}
.timeline-desc{font-size:.86rem;color:var(--text2)}

/* ---- Academy ---- */
.academy{padding:130px 0;text-align:center}
.academy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.academy-card{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border2);transition:var(--t);text-align:left;background:var(--bg)}
.academy-card:hover{border-color:var(--card-hover-border);box-shadow:var(--shadow-md);transform:translateY(-1px)}
.academy-card-img{height:120px;display:flex;align-items:center;justify-content:center}
.academy-card-num{font-size:2rem;font-weight:700;color:rgba(255,255,255,.15)}
.academy-card-body{padding:20px}
.academy-card-cat{font-size:.72rem;font-weight:600;color:var(--text2);margin-bottom:6px;display:block;letter-spacing:.03em}
.academy-card-body h3{font-size:.95rem;font-weight:600;margin-bottom:6px;line-height:1.4}
.academy-card-body p{font-size:.84rem;color:var(--text2);line-height:1.6;margin-bottom:10px}
.academy-more{margin-top:40px}

/* ---- CTA ---- */
.cta{padding:130px 0;background:linear-gradient(180deg,#000 0%,#1d1d1f 100%);text-align:center;color:#fff;position:relative;overflow:hidden}
.cta::before{content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 40% at 30% 60%,rgba(46,92,255,.08) 0%,transparent 60%),
              radial-gradient(ellipse 50% 50% at 70% 30%,rgba(255,107,53,.06) 0%,transparent 60%);
}
.cta-content{position:relative;z-index:1}
.cta-title{font-size:clamp(1.6rem,3.5vw,2.6rem);font-weight:700;margin-bottom:10px;letter-spacing:-.015em}
.cta-desc{font-size:1.05rem;opacity:.6;margin-bottom:32px;font-weight:400}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:36px}
.cta-wechat{opacity:.5;font-size:.88rem}
.cta-wechat strong{color:var(--a);opacity:.9}
.cta-qr{margin:12px auto 0;max-width:120px}
.qr-placeholder{background:rgba(255,255,255,.08);border-radius:var(--r-md);padding:16px;text-align:center}
.qr-placeholder span{font-size:2rem;display:block;margin-bottom:2px}
.qr-placeholder p{font-size:.72rem;opacity:.5}

/* ---- Footer ---- */
.footer{background:#f5f5f7;color:var(--text2);padding:48px 0 16px;border-top:1px solid var(--border2)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-logo{display:flex;align-items:center;gap:8px;font-size:.95rem;font-weight:600;color:var(--text);margin-bottom:8px}
.footer-tagline{font-size:.88rem;color:var(--a);font-weight:500;margin-bottom:6px}
.footer-desc{font-size:.82rem;line-height:1.6;color:var(--text2)}
.footer-social{display:flex;gap:8px;margin-top:14px}
.social-link{width:32px;height:32px;border-radius:50%;background:var(--border2);display:flex;align-items:center;justify-content:center;font-size:.9rem;color:var(--text2);transition:var(--t)}
.social-link:hover{background:var(--p);color:#fff}
.footer-links h4,.footer-contact h4{font-size:.82rem;font-weight:600;color:var(--text);margin-bottom:12px}
.footer-links ul,.footer-contact ul{display:flex;flex-direction:column;gap:8px}
.footer-links a,.footer-contact li{font-size:.82rem;color:var(--text2);transition:var(--t)}
.footer-links a:hover{color:var(--p)}
.footer-bottom{border-top:1px solid var(--border2);padding-top:16px;display:flex;justify-content:space-between;align-items:center;font-size:.78rem}
.footer-legal{display:flex;gap:16px}
.footer-legal a{color:var(--text2);font-size:.78rem}
.footer-legal a:hover{color:var(--p)}

/* ---- Back to Top ---- */
.back-to-top{
  position:fixed;bottom:24px;right:24px;
  width:40px;height:40px;
  background:rgba(0,0,0,.08);backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  color:var(--text);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;cursor:pointer;
  border:1px solid var(--border2);
  z-index:999;opacity:0;transform:translateY(16px);
  transition:var(--t);pointer-events:none;
}
.back-to-top.visible{opacity:1;transform:translateY(0);pointer-events:auto}
.back-to-top:hover{background:rgba(0,0,0,.12);border-color:var(--border)}

/* ---- Animations ---- */
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(6px)}}
@keyframes fade-arrow{0%,100%{opacity:.4}50%{opacity:1}}
@keyframes spin-cube{0%{transform:rotateX(-18deg) rotateY(0deg)}100%{transform:rotateX(-18deg) rotateY(360deg)}}

/* ---- Scroll Animations ---- */
[data-aos]{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
[data-aos].aos-animate{opacity:1;transform:translateY(0)}
[data-aos="fade-left"]{transform:translateX(24px)}
[data-aos="fade-left"].aos-animate{transform:translateX(0)}
[data-aos="zoom-in"]{transform:scale(.95)}
[data-aos="zoom-in"].aos-animate{transform:scale(1)}

/* ---- Responsive ---- */
@media(max-width:1024px){
  .tools-grid,.cases-grid,.academy-grid{grid-template-columns:repeat(2,1fr)}
  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .rubik-wrapper{grid-template-columns:1fr;text-align:center}
  .rubik-dims{max-width:460px;margin:0 auto}
  .about-content{grid-template-columns:1fr;gap:40px}
}

@media(max-width:768px){
  :root{--nav-h:48px}
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;top:var(--nav-h);left:0;right:0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(40px);
    flex-direction:column;padding:12px 22px 16px;
    border-bottom:1px solid var(--border2);
    transform:translateY(-110%);opacity:0;
    transition:var(--t);box-shadow:0 8px 24px rgba(0,0,0,.08);
  }
  .nav-menu.open{transform:translateY(0);opacity:1}
  .nav-cta{margin-left:0;text-align:center;margin-top:4px}
  .hero{min-height:90vh}
  .hero-trust{gap:20px}
  .hero-trust .trust-num{font-size:1.5rem}
  .tools-grid,.cases-grid,.academy-grid,.pain-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .cta-actions,.hero-actions{flex-direction:column;align-items:center}
  .btn-lg{width:100%;max-width:300px}
  .section-desc{margin-bottom:36px}
  section{padding:80px 0 !important}
  .rubik-cube{width:180px;height:180px}
  .rubik-face{width:180px;height:180px}
  .rubik-front{transform:translateZ(90px)}
  .rubik-back{transform:rotateY(180deg) translateZ(90px)}
  .rubik-left{transform:rotateY(-90deg) translateZ(90px)}
  .rubik-right{transform:rotateY(90deg) translateZ(90px)}
  .rubik-top{transform:rotateX(90deg) translateZ(90px)}
  .rubik-bottom{transform:rotateX(-90deg) translateZ(90px)}
  .rubik-wrapper{gap:32px}
}

/* ---- Filter Bar ---- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:24px 40px;
  padding:20px 0 28px;margin-bottom:8px;
  border-bottom:1px solid var(--border2);
}
.filter-group{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.filter-label{
  font-size:.8rem;font-weight:600;color:var(--text2);
  min-width:32px;letter-spacing:-.01em;
}
.filter-options{display:flex;gap:6px;flex-wrap:wrap}
.filter-options .filter-btn{
  padding:4px 12px;border-radius:980px;border:1px solid var(--border2);
  background:var(--bg);font-size:.78rem;font-weight:500;
  color:var(--text2);cursor:pointer;transition:var(--t);font-family:var(--font);
  line-height:1.5;
}
.filter-options .filter-btn:hover{
  border-color:var(--p);color:var(--p);background:var(--pl);
}
.filter-options .filter-btn.active{
  background:var(--p);border-color:var(--p);color:#fff;
}

/* ---- Case Card Filtering ---- */
.case-card{transition:opacity .4s ease,transform .4s ease}
.case-card.hidden{display:none}

/* ---- Warm Section Bg ---- */
.section-warm{background:var(--warm)}

/* ---- Card Hover Improvements ---- */
.tool-card:hover,.case-card:hover,.academy-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover);border-color:var(--p)}

/* ---- Pain Card Redesign ---- */
.pain-card{border:1px solid var(--border2);padding:32px 22px;border-radius:var(--r-lg);background:var(--bg);transition:var(--t);text-align:left;position:relative;overflow:hidden}
.pain-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;opacity:0.6;transition:var(--t)}
.pain-card:hover::before{opacity:1}
.pain-card:nth-child(1)::before{background:var(--p)}
.pain-card:nth-child(2)::before{background:var(--a)}
.pain-card:nth-child(3)::before{background:#27AE60}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover)}

/* ---- Pain Icon Styling ---- */
.pain-icon{width:48px;height:48px;font-size:1.1rem;font-weight:600;line-height:1}
.pain-icon-1{background:var(--pl);color:var(--p)}
.pain-icon-2{background:rgba(255,107,53,.1);color:var(--a)}
.pain-icon-3{background:rgba(39,174,96,.1);color:#27AE60}

/* ---- Signature Motif: Rubik Cube Grid Decor ---- */
.section-label::before{display:none}
.pain-card .pain-icon .icon-svg{width:24px;height:24px}
.pain-icon-1 .icon-svg{stroke:var(--p)}
.pain-icon-2 .icon-svg{stroke:var(--a)}
.pain-icon-3 .icon-svg{stroke:#27AE60}

/* ---- Nav Logo Pulse ---- */
.nav-logo-mark{animation:logo-pulse 3s ease-in-out infinite}
@keyframes logo-pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.04)}}

/* ---- CTA Warm Gradient ---- */
.cta{background:linear-gradient(135deg,var(--pd) 0%,var(--p) 50%,#6d8cff 100%)}

/* ---- Tool Icon Hover ---- */
.tool-card-icon{transition:transform var(--t)}
.tool-card:hover .tool-card-icon{transform:scale(1.1) rotate(-3deg)}

/* ---- Section Spacing Refinement ---- */


/* ---- Section Padding Refinement ---- */
.tools,.cases{padding:120px 0}
.story,.about,.model,.academy{padding:120px 0}


/* ---- Pain Section Refinement ---- */
.pain-grid{gap:24px;margin-top:48px}
.pain-card{padding:40px 28px 36px;text-align:center}
.pain-card h3{margin-bottom:14px;letter-spacing:.01em}
.pain-card p{max-width:290px;margin:0 auto}
.pain-icon{margin-bottom:14px}
.pain-card::before{height:4px;opacity:.5}


/* ---- Pain Card Bar Refinement ---- */
/* Remove disconnected top bar, enhance icon instead */
.pain-card::before,.pain-card:nth-child(1)::before,
.pain-card:nth-child(2)::before,.pain-card:nth-child(3)::before,
.pain-card:hover::before{display:none}

.pain-icon{box-shadow:0 2px 8px rgba(0,0,0,0.06)}

/* Slightly thicker top border as color accent */
.pain-card{border-top:3px solid transparent}
.pain-card:nth-child(1){border-top-color:var(--p)}
.pain-card:nth-child(2){border-top-color:var(--a)}
.pain-card:nth-child(3){border-top-color:#27AE60}
.pain-card:nth-child(1):hover,.pain-card:nth-child(2):hover,.pain-card:nth-child(3):hover,.pain-card:hover{border-top-color:transparent}


/* ---- Unified Warm Palette ---- */
.pain,.tools,.cases,.model,.story,.about,.academy{background:var(--warm)}
.footer{background:var(--warm)}


/* ---- Hero Background Refinement ---- */
.hero-gradient{
  background:
    radial-gradient(ellipse 65% 55% at 50% -5%,rgba(46,92,255,.12) 0%,transparent 60%),
    radial-gradient(ellipse 40% 35% at 75% 85%,rgba(255,107,53,.06) 0%,transparent 55%),
    radial-gradient(ellipse 20% 20% at 25% 75%,rgba(212,168,75,.04) 0%,transparent 50%);
}

/* ---- Content Section Background: Subtle Pattern ---- */
.pain{
  background:
    linear-gradient(to bottom,rgba(255,255,255,.75) 0%,transparent 200px),
    radial-gradient(circle,rgba(0,0,0,.025) 1px,transparent 0),
    var(--warm);
  background-size:100% 100%,32px 32px,auto;
}
.tools,.cases,.model,.story,.about,.academy{
  background:
    radial-gradient(circle,rgba(0,0,0,.025) 1px,transparent 0),
    var(--warm);
  background-size:32px 32px,auto;
}


/* ---- Section Transition Refinement ---- */
.cta{
  background:linear-gradient(180deg,var(--warm) 0%,var(--p) 35%,#6d8cff 100%)
}
.footer{
  background:
    linear-gradient(to bottom,rgba(107,140,255,.12) 0%,transparent 100px),
    var(--warm);
  border-top:none;
}


/* ---- CTA Background Unification ---- */
.cta{background:var(--warm);color:var(--text)}
.cta::before{display:none}
.cta-desc{color:var(--text2);opacity:1}
.cta .btn-ol{border-color:var(--p);color:var(--p)}
.cta .btn-ol:hover{background:var(--pl);color:var(--pd);border-color:var(--p)}
.cta-wechat{opacity:.7}