:root{
  --bg:#f5f6fa;
  --bg-alt:#eceef6;
  --surface:rgba(255,255,255,.72);
  --surface-solid:#ffffff;
  --surface-glass:rgba(255,255,255,.55);
  --text:#1a1a2e;
  --text-soft:#4a4a63;
  --text-mute:#767691;
  --border:rgba(26,26,46,.1);
  --primary:#e94560;
  --primary-dark:#c92d47;
  --primary-soft:rgba(233,69,96,.12);
  --accent:#533483;
  --accent-2:#0f3460;
  --nav-bg:rgba(255,255,255,.78);
  --shadow-sm:0 2px 8px rgba(26,26,46,.06);
  --shadow-md:0 10px 30px rgba(26,26,46,.1);
  --shadow-lg:0 20px 50px rgba(26,26,46,.16);
  --grad-hero:linear-gradient(135deg,#1a1a2e 0%,#16213e 45%,#0f3460 75%,#533483 100%);
  --grad-accent:linear-gradient(135deg,#e94560 0%,#533483 100%);
  --grad-soft:linear-gradient(135deg,rgba(233,69,96,.08),rgba(83,52,131,.08));
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --radius-pill:999px;
  --maxw:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:72px;
}

[data-theme="dark"]{
  --bg:#0d0d1a;
  --bg-alt:#12122a;
  --surface:rgba(30,30,54,.62);
  --surface-solid:#1a1a2e;
  --surface-glass:rgba(30,30,54,.5);
  --text:#eef0f8;
  --text-soft:#c3c6d8;
  --text-mute:#8f93ad;
  --border:rgba(255,255,255,.1);
  --primary:#ff5c77;
  --primary-dark:#e94560;
  --primary-soft:rgba(255,92,119,.16);
  --nav-bg:rgba(13,13,26,.8);
  --shadow-sm:0 2px 8px rgba(0,0,0,.3);
  --shadow-md:0 10px 30px rgba(0,0,0,.4);
  --shadow-lg:0 20px 50px rgba(0,0,0,.55);
  --grad-hero:linear-gradient(135deg,#0d0d1a 0%,#12122a 45%,#1a1a2e 75%,#2a1a4a 100%);
  --grad-soft:linear-gradient(135deg,rgba(255,92,119,.1),rgba(83,52,131,.14));
}

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

html{
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  background-image:
    radial-gradient(circle at 12% 8%,rgba(233,69,96,.08),transparent 42%),
    radial-gradient(circle at 88% 20%,rgba(83,52,131,.1),transparent 46%),
    radial-gradient(circle at 50% 95%,rgba(15,52,96,.07),transparent 50%);
  background-attachment:fixed;
  transition:background-color .4s var(--ease),color .4s var(--ease);
  overflow-x:hidden;
}

img,svg{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.3;font-weight:800;letter-spacing:.01em;}
p{margin:0 0 1em;}
button{font-family:inherit;cursor:pointer;}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}

.visually-hidden{
  position:absolute!important;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);
  white-space:nowrap;border:0;
}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  height:var(--header-h);
  display:flex;
  align-items:center;
  background:var(--nav-bg);
  -webkit-backdrop-filter:blur(18px) saturate(1.6);
  backdrop-filter:blur(18px) saturate(1.6);
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s var(--ease),background-color .4s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-md);}

.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:100%;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-logo{
  flex-shrink:0;
  border-radius:12px;
  box-shadow:0 6px 18px rgba(233,69,96,.28);
  transition:transform .4s var(--ease);
}
.brand:hover .brand-logo{transform:rotate(-6deg) scale(1.06);}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:1.12rem;font-weight:800;letter-spacing:.02em;}
.brand-text em{
  font-style:normal;
  font-size:.72rem;
  color:var(--text-mute);
  letter-spacing:.02em;
}

.main-nav{flex:1;min-width:0;}
.main-nav ul{
  display:flex;
  align-items:center;
  gap:4px;
  flex-wrap:nowrap;
  overflow-x:auto;
  scrollbar-width:none;
}
.main-nav ul::-webkit-scrollbar{display:none;}
.main-nav a{
  display:block;
  padding:8px 12px;
  font-size:.9rem;
  font-weight:500;
  color:var(--text-soft);
  border-radius:var(--radius-pill);
  white-space:nowrap;
  transition:color .25s var(--ease),background-color .25s var(--ease);
}
.main-nav a:hover{
  color:var(--primary);
  background:var(--primary-soft);
}

.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}

.search-form{
  display:flex;
  align-items:center;
  background:var(--surface-glass);
  border:1px solid var(--border);
  border-radius:var(--radius-pill);
  padding:3px 3px 3px 14px;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.search-form:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-soft);
}
.search-form input{
  width:150px;
  border:0;
  outline:0;
  background:transparent;
  color:var(--text);
  font-size:.86rem;
  padding:6px 0;
}
.search-form input::placeholder{color:var(--text-mute);}
.search-form button{
  border:0;
  border-radius:var(--radius-pill);
  padding:6px 14px;
  font-size:.82rem;
  font-weight:600;
  color:#fff;
  background:var(--grad-accent);
  transition:transform .25s var(--ease),filter .25s var(--ease);
}
.search-form button:hover{filter:brightness(1.08);transform:translateY(-1px);}

.theme-toggle,.menu-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border:1px solid var(--border);
  border-radius:50%;
  background:var(--surface-glass);
  color:var(--text);
  font-size:1rem;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:transform .3s var(--ease),border-color .25s var(--ease),background-color .25s var(--ease);
}
.theme-toggle:hover,.menu-toggle:hover{
  transform:translateY(-2px) rotate(8deg);
  border-color:var(--primary);
}
.menu-toggle{display:none;flex-direction:column;gap:4px;}
.menu-toggle span{
  width:18px;height:2px;
  background:currentColor;
  border-radius:2px;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:64px 0 72px;
  background:var(--grad-hero);
  color:#eef0f8;
  overflow:hidden;
  isolation:isolate;
}
.hero::before{
  content:"";
  position:absolute;
  inset:-30% -10% auto auto;
  width:640px;height:640px;
  background:radial-gradient(circle,rgba(233,69,96,.35),transparent 62%);
  filter:blur(30px);
  z-index:-1;
  animation:floatGlow 14s ease-in-out infinite alternate;
}
.hero::after{
  content:"";
  position:absolute;
  inset:auto auto -40% -12%;
  width:560px;height:560px;
  background:radial-gradient(circle,rgba(83,52,131,.42),transparent 64%);
  filter:blur(34px);
  z-index:-1;
  animation:floatGlow 18s ease-in-out infinite alternate-reverse;
}
@keyframes floatGlow{
  from{transform:translate3d(0,0,0) scale(1);}
  to{transform:translate3d(-40px,30px,0) scale(1.12);}
}

.hero-inner{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}

.hero-eyebrow{
  display:inline-block;
  margin:0 0 18px;
  padding:6px 16px;
  font-size:.8rem;
  font-weight:600;
  letter-spacing:.06em;
  color:#ffd9e0;
  background:rgba(233,69,96,.18);
  border:1px solid rgba(233,69,96,.4);
  border-radius:var(--radius-pill);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}

.hero h1{
  font-size:clamp(1.7rem,3.4vw,2.7rem);
  line-height:1.25;
  margin-bottom:20px;
  background:linear-gradient(120deg,#ffffff 20%,#ffc2cd 55%,#c9b6ff 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:transparent;
}

.hero-lead{
  font-size:1rem;
  line-height:1.85;
  color:rgba(238,240,248,.82);
  max-width:640px;
}
.hero-lead strong{color:#ffd9e0;}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin:26px 0 34px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 28px;
  font-size:.94rem;
  font-weight:700;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background-color .3s var(--ease),color .3s var(--ease);
  will-change:transform;
}
.btn-primary{
  color:#fff;
  background:var(--grad-accent);
  box-shadow:0 10px 26px rgba(233,69,96,.36);
}
.btn-primary:hover{
  color:#fff;
  transform:translateY(-3px);
  box-shadow:0 16px 34px rgba(233,69,96,.46);
}
.btn-ghost{
  color:#eef0f8;
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.28);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{
  color:#fff;
  background:rgba(255,255,255,.16);
  transform:translateY(-3px);
}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:12px;
  padding:18px;
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
}
.hero-stats li{
  text-align:center;
  padding:6px 4px;
  border-right:1px solid rgba(255,255,255,.12);
}
.hero-stats li:last-child{border-right:0;}
.hero-stats .num{
  display:block;
  font-size:1.5rem;
  font-weight:800;
  color:#fff;
  line-height:1.2;
  background:linear-gradient(120deg,#fff,#ffb3c1);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-stats small{
  display:block;
  margin-top:4px;
  font-size:.72rem;
  color:rgba(238,240,248,.62);
  letter-spacing:.02em;
}

/* ============ Hero Slider ============ */
.hero-slider{
  position:relative;
  border-radius:var(--radius-lg);
  padding:18px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  backdrop-filter:blur(20px) saturate(1.4);
  box-shadow:0 24px 60px rgba(0,0,0,.35);
}
.hero-slider .slide{
  display:none;
  animation:slideFade .6s var(--ease);
}
.hero-slider .slide.is-active{display:block;}
@keyframes slideFade{
  from{opacity:0;transform:translateY(14px) scale(.98);}
  to{opacity:1;transform:translateY(0) scale(1);}
}
.hero-slider svg{
  width:100%;
  height:auto;
  border-radius:var(--radius);
  box-shadow:0 12px 30px rgba(0,0,0,.3);
}
.slide-cap{
  margin:14px 0 0;
  text-align:center;
  font-size:.86rem;
  font-weight:600;
  color:rgba(238,240,248,.88);
  letter-spacing:.02em;
}
.slider-dots{
  display:flex;
  justify-content:center;
  gap:10px;
  margin-top:16px;
}
.slider-dots .dot{
  width:10px;height:10px;
  padding:0;
  border:0;
  border-radius:50%;
  background:rgba(255,255,255,.3);
  transition:width .3s var(--ease),background-color .3s var(--ease);
}
.slider-dots .dot.is-active{
  width:28px;
  border-radius:var(--radius-pill);
  background:var(--grad-accent);
}
.slider-dots .dot:hover{background:rgba(255,255,255,.55);}

/* ============ Breadcrumb ============ */
.breadcrumb{
  background:var(--bg-alt);
  border-bottom:1px solid var(--border);
  padding:12px 0;
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.84rem;
  color:var(--text-mute);
}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{
  content:"/";
  color:var(--text-mute);
  opacity:.6;
}
.breadcrumb a{color:var(--text-soft);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb [aria-current="page"]{color:var(--primary);font-weight:600;}

/* ============ Sections ============ */
.section{
  padding:72px 0;
  position:relative;
}
.section-alt{
  background:var(--bg-alt);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}

.section > .container > h2{
  font-size:clamp(1.4rem,2.6vw,2rem);
  margin-bottom:14px;
  position:relative;
  padding-left:18px;
}
.section > .container > h2::before{
  content:"";
  position:absolute;
  left:0;top:.18em;
  width:6px;height:1.1em;
  border-radius:var(--radius-pill);
  background:var(--grad-accent);
}
.section-lead{
  max-width:820px;
  color:var(--text-soft);
  font-size:.98rem;
  margin-bottom:34px;
}

/* ============ Prose ============ */
.prose{
  max-width:900px;
  color:var(--text-soft);
  font-size:.97rem;
  line-height:1.9;
  margin-bottom:36px;
}
.prose p{margin-bottom:1.1em;}
.prose strong{color:var(--text);}
.prose h3{
  font-size:1.15rem;
  color:var(--text);
  margin:1.6em 0 .5em;
  padding-left:14px;
  border-left:4px solid var(--primary);
  line-height:1.4;
}
.prose h3:first-child{margin-top:0;}

/* ============ Grid & Cards ============ */
.grid{
  display:grid;
  gap:24px;
}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}

.card{
  position:relative;
  padding:28px 26px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  -webkit-backdrop-filter:blur(16px) saturate(1.3);
  backdrop-filter:blur(16px) saturate(1.3);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .3s var(--ease);
  overflow:hidden;
}
.card::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:3px;
  background:var(--grad-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .45s var(--ease);
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(233,69,96,.35);
}
.card:hover::before{transform:scaleX(1);}

.card h3{
  font-size:1.1rem;
  color:var(--text);
  margin-bottom:12px;
}
.card h4{
  font-size:.95rem;
  color:var(--primary);
  margin:18px 0 10px;
  font-weight:700;
}
.card p{
  font-size:.92rem;
  color:var(--text-soft);
  line-height:1.8;
  margin-bottom:.8em;
}
.card p:last-child{margin-bottom:0;}
.card ul,.card ol{
  margin:0;
  padding:0;
}
.card ul li{
  position:relative;
  padding-left:20px;
  font-size:.9rem;
  color:var(--text-soft);
  line-height:1.7;
  margin-bottom:8px;
}
.card ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.62em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--grad-accent);
}
.card ol{
  counter-reset:step;
}
.card ol li{
  position:relative;
  padding-left:34px;
  font-size:.9rem;
  color:var(--text-soft);
  line-height:1.7;
  margin-bottom:12px;
  counter-increment:step;
}
.card ol li::before{
  content:counter(step);
  position:absolute;
  left:0;top:.15em;
  width:22px;height:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.72rem;
  font-weight:800;
  color:#fff;
  background:var(--grad-accent);
  border-radius:50%;
}

.product-card h3{
  padding-bottom:10px;
  border-bottom:1px dashed var(--border);
}

/* ============ Cases & Quotes ============ */
.case-card p{
  font-size:.9rem;
}
.case-card strong{color:var(--primary);}

.quote-card{
  margin:0;
  padding:28px 26px 22px;
  border-left:4px solid var(--primary);
}
.quote-card::before{
  content:"“";
  position:absolute;
  top:6px;right:18px;
  font-size:4rem;
  line-height:1;
  font-family:Georgia,serif;
  color:var(--primary);
  opacity:.16;
  pointer-events:none;
}
.quote-card p{
  font-size:.95rem;
  font-style:italic;
  color:var(--text-soft);
  margin-bottom:16px;
}
.quote-card footer{
  font-size:.82rem;
  font-weight:600;
  color:var(--text-mute);
  text-align:right;
}

#cases > .container > h3{
  margin:56px 0 24px;
  font-size:1.25rem;
  padding-left:16px;
  border-left:4px solid var(--primary);
}

/* ============ Articles ============ */
.article-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.article-card{
  display:flex;
  flex-direction:column;
}
.article-card h3{
  font-size:1.05rem;
  margin-bottom:10px;
}
.article-card h3 a{
  color:var(--text);
  background-image:linear-gradient(var(--primary),var(--primary));
  background-size:0 2px;
  background-repeat:no-repeat;
  background-position:0 100%;
  transition:color .25s var(--ease),background-size .35s var(--ease);
}
.article-card h3 a:hover{
  color:var(--primary);
  background-size:100% 2px;
}
.article-card .meta{
  font-size:.78rem;
  color:var(--text-mute);
  margin-bottom:12px;
  padding-bottom:12px;
  border-bottom:1px dashed var(--border);
}
.article-card .meta time{color:var(--text-soft);font-weight:600;}
.article-card > p{
  flex:1;
  font-size:.9rem;
}
.read-more{
  align-self:flex-start;
  margin-top:8px;
  font-size:.86rem;
  font-weight:700;
  color:var(--primary);
  padding:6px 16px;
  border:1px solid var(--primary-soft);
  border-radius:var(--radius-pill);
  background:var(--primary-soft);
  transition:transform .3s var(--ease),background-color .3s var(--ease),color .3s var(--ease);
}
.read-more:hover{
  color:#fff;
  background:var(--grad-accent);
  transform:translateX(4px);
}

/* ============ FAQ ============ */
.faq-list{
  display:grid;
  gap:14px;
  max-width:960px;
}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.faq-item:hover{border-color:rgba(233,69,96,.3);}
.faq-item[open]{
  border-color:rgba(233,69,96,.45);
  box-shadow:var(--shadow-md);
}
.faq-item summary{
  position:relative;
  padding:18px 54px 18px 22px;
  font-size:.96rem;
  font-weight:700;
  color:var(--text);
  cursor:pointer;
  list-style:none;
  transition:color .25s var(--ease),background-color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:20px;top:50%;
  transform:translateY(-50%);
  width:26px;height:26px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.1rem;
  font-weight:400;
  line-height:1;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:50%;
  transition:transform .35s var(--ease),background-color .3s var(--ease),color .3s var(--ease);
}
.faq-item[open] summary::after{
  content:"−";
  transform:translateY(-50%) rotate(180deg);
  color:#fff;
  background:var(--grad-accent);
}
.faq-item summary:hover{color:var(--primary);}
.faq-item p{
  margin:0;
  padding:0 22px 20px;
  font-size:.9rem;
  color:var(--text-soft);
  line-height:1.85;
  animation:faqFade .35s var(--ease);
}
@keyframes faqFade{
  from{opacity:0;transform:translateY(-6px);}
  to{opacity:1;transform:translateY(0);}
}

/* ============ HowTo ============ */
.howto{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.howto .card:last-child{
  grid-column:1 / -1;
  background:var(--grad-soft);
  border-color:rgba(233,69,96,.3);
}

/* ============ Contact ============ */
.contact-list li{
  display:block;
  padding-left:0!important;
  padding:10px 0;
  border-bottom:1px dashed var(--border);
  font-size:.92rem;
}
.contact-list li::before{display:none!important;}
.contact-list li:last-child{border-bottom:0;}
.contact-list strong{color:var(--text);}
.contact-list a{font-weight:600;}

#contact .card h4{
  margin-top:22px;
  padding-top:16px;
  border-top:1px dashed var(--border);
}

/* ============ Sitemap / Links ============ */
.link-list li{
  padding-left:0!important;
  margin-bottom:0!important;
}
.link-list li::before{display:none!important;}
.link-list a{
  display:block;
  padding:8px 0;
  font-size:.9rem;
  color:var(--text-soft);
  border-bottom:1px dashed var(--border);
  transition:color .25s var(--ease),padding-left .3s var(--ease);
}
.link-list li:last-child a{border-bottom:0;}
.link-list a:hover{
  color:var(--primary);
  padding-left:8px;
}

/* ============ Footer ============ */
.site-footer{
  position:relative;
  padding:48px 0 40px;
  background:var(--grad-hero);
  color:rgba(238,240,248,.78);
  border-top:1px solid rgba(255,255,255,.08);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 15% 20%,rgba(233,69,96,.16),transparent 45%),
    radial-gradient(circle at 85% 80%,rgba(83,52,131,.2),transparent 50%);
  pointer-events:none;
}
.footer-inner{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:32px;
  align-items:flex-start;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:14px;
}
.footer-brand svg{
  flex-shrink:0;
  border-radius:10px;
  box-shadow:0 8px 22px rgba(233,69,96,.35);
}
.footer-brand p{
  margin:0;
  font-size:.86rem;
  line-height:1.6;
  color:rgba(238,240,248,.72);
}
.footer-brand strong{
  font-size:1rem;
  color:#fff;
  letter-spacing:.02em;
}
.footer-meta{
  text-align:right;
  font-size:.82rem;
  line-height:1.9;
  color:rgba(238,240,248,.6);
}
.footer-meta p{margin:0 0 4px;}
.footer-meta a{
  color:rgba(238,240,248,.82);
  transition:color .25s var(--ease);
}
.footer-meta a:hover{color:#ffb3c1;}

/* ============ Back to top ============ */
.back-to-top{
  position:fixed;
  right:24px;
  bottom:28px;
  z-index:900;
  width:48px;height:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.2rem;
  font-weight:700;
  color:#fff;
  background:var(--grad-accent);
  border:0;
  border-radius:50%;
  box-shadow:0 10px 26px rgba(233,69,96,.4);
  opacity:0;
  visibility:hidden;
  transform:translateY(16px) scale(.9);
  transition:opacity .35s var(--ease),transform .35s var(--ease),visibility .35s,box-shadow .3s var(--ease);
}
.back-to-top.is-visible{
  opacity:1;
  visibility:visible;
  transform:translateY(0) scale(1);
}
.back-to-top:hover{
  transform:translateY(-4px) scale(1.06);
  box-shadow:0 16px 34px rgba(233,69,96,.55);
}

/* ============ Scroll reveal ============ */
.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
  will-change:opacity,transform;
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}

/* ============ Responsive ============ */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-slider{max-width:560px;margin:0 auto;width:100%;}
  .main-nav a{padding:8px 9px;font-size:.85rem;}
  .search-form input{width:110px;}
}

@media (max-width:920px){
  :root{--header-h:64px;}
  .menu-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;
    top:var(--header-h);
    left:0;
    right:0;
    max-height:0;
    overflow:hidden;
    background:var(--nav-bg);
    -webkit-backdrop-filter:blur(20px) saturate(1.6);
    backdrop-filter:blur(20px) saturate(1.6);
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);
    transition:max-height .45s var(--ease);
  }
  .main-nav.is-open{max-height:calc(100vh - var(--header-h));overflow-y:auto;}
  .main-nav ul{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 20px 20px;
    overflow:visible;
  }
  .main-nav a{
    padding:13px 14px;
    font-size:.95rem;
    border-radius:var(--radius-sm);
    border-bottom:1px solid var(--border);
  }
  .main-nav li:last-child a{border-bottom:0;}
  .search-form{display:none;}

  .grid-3{grid-template-columns:repeat(2,1fr);}
  .howto{grid-template-columns:repeat(2,1fr);}
  .article-list{grid-template-columns:1fr;}
}

@media (max-width:720px){
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .hero{padding:44px 0 52px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:6px;}
  .hero-stats li:nth-child(2){border-right:0;}
  .hero-stats li:nth-child(odd){border-right:1px solid rgba(255,255,255,.12);}
  .hero-stats .num{font-size:1.3rem;}
  .grid-2,.grid-3,.howto{grid-template-columns:1fr;}
  .card{padding:24px 20px;}
  .brand-text em{display:none;}
  .footer-inner{flex-direction:column;}
  .footer-meta{text-align:left;}
  .back-to-top{right:16px;bottom:18px;width:44px;height:44px;}
  .faq-item summary{padding:16px 48px 16px 18px;font-size:.92rem;}
  .faq-item p{padding:0 18px 18px;}
}

@media (max-width:420px){
  .brand-text strong{font-size:1rem;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr 1fr;}
}

/* ============ Motion & a11y ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .reveal{opacity:1;transform:none;}
}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
  border-radius:var(--radius-sm);
}

::selection{
  background:var(--primary);
  color:#fff;
}

@media print{
  .site-header,.back-to-top,.hero-slider,.slider-dots,.search-form,.theme-toggle,.menu-toggle{display:none!important;}
  body{background:#fff;color:#000;}
  .card{box-shadow:none;border:1px solid #ccc;}
  .reveal{opacity:1;transform:none;}
}