:root{--bg:#f6f6f6;--card:#fff;--ink:#28282b;--muted:#797b89;--line:#e8e8e8;--blue:#386fde;--dark:#1f2533}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);font-family:Inter,Arial,sans-serif;color:var(--ink)}a{color:inherit;text-decoration:none}button,textarea{font:inherit}.seo-container{width:min(1128px,calc(100% - 28px));margin:auto}.seo-header{position:fixed;z-index:20;top:20px;left:0;width:100%}.seo-header__inner{height:64px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.9);backdrop-filter:blur(14px)}.seo-logo{font-size:24px;font-weight:800;letter-spacing:-2px}.seo-header__cta,.seo-btn{padding:12px 18px;border-radius:7px;background:var(--blue);color:#fff;font-weight:600;font-size:15px}.seo-hero{padding:130px 0 72px;background:#fff;border-radius:0 0 20px 20px}.seo-hero__grid{display:grid;grid-template-columns:1fr 1.08fr;gap:64px;align-items:center}.seo-kicker{margin:0 0 15px;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.seo-hero h1{margin:0;font-size:52px;line-height:1.06;letter-spacing:-.04em}.seo-lead{margin:23px 0 0;max-width:570px;color:var(--muted);font-size:18px;line-height:1.55}.seo-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}.seo-btn--ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}.seo-hero__visual{position:relative;overflow:hidden;border-radius:18px;box-shadow:0 24px 70px rgba(28,39,70,.15)}.seo-hero__visual img{display:block;width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .7s cubic-bezier(.2,.8,.2,1)}.seo-hero__visual:hover img{transform:scale(1.035)}.seo-section{padding:100px 0}.seo-section--white{background:#fff;border-radius:20px}.seo-section__head{max-width:670px;margin-bottom:40px}.seo-section h2{margin:0;font-size:36px;line-height:1.15;letter-spacing:-.025em}.seo-section__head p{margin:16px 0 0;color:var(--muted);font-size:17px;line-height:1.55}.seo-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.seo-card{min-height:230px;padding:28px;border:1px solid var(--line);border-radius:14px;background:var(--card);transition:transform .3s,box-shadow .3s}.seo-card:hover{transform:translateY(-5px);box-shadow:0 18px 45px rgba(30,40,70,.08)}.seo-card__num{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#eef3ff;color:var(--blue);font-weight:700}.seo-card h3{margin:28px 0 12px;font-size:20px}.seo-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.55}.seo-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:steps}.seo-step{padding:30px;border-radius:14px;background:var(--dark);color:#fff;counter-increment:steps}.seo-step:before{content:"0" counter(steps);display:block;margin-bottom:38px;color:#6f96ec;font-size:13px;font-weight:700}.seo-step h3{margin:0 0 12px;font-size:20px}.seo-step p{margin:0;color:#c5cada;line-height:1.55}.seo-faq{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px}.seo-faq__list{border-top:1px solid var(--line)}.seo-faq details{border-bottom:1px solid var(--line)}.seo-faq summary{padding:22px 2px;display:flex;justify-content:space-between;gap:20px;cursor:pointer;list-style:none;font-weight:600;line-height:1.4}.seo-faq summary::-webkit-details-marker{display:none}.seo-faq summary:after{content:"+";display:grid;place-items:center;min-width:28px;height:28px;border:1px solid var(--line);border-radius:50%;transition:.3s}.seo-faq details[open] summary:after{transform:rotate(45deg);background:var(--blue);color:#fff}.seo-answer{max-height:0;overflow:hidden;opacity:0;transition:max-height .38s,opacity .3s}.seo-faq details[open] .seo-answer{max-height:250px;opacity:1}.seo-answer p{margin:0;padding:0 46px 22px 2px;color:var(--muted);line-height:1.55}.seo-try{padding:64px;border-radius:20px;background:var(--dark);color:#fff;text-align:center;overflow:hidden;position:relative}.seo-try:before{content:"";position:absolute;width:330px;height:330px;right:-130px;top:-190px;border-radius:50%;background:#416bbf}.seo-try>*{position:relative}.seo-try h2{font-size:38px}.seo-try p{max-width:600px;margin:16px auto 28px;color:#c5cada;line-height:1.55}.seo-footer{margin-top:24px;padding:64px 0 30px;background:#fff;border-radius:20px 20px 0 0}.seo-footer__grid{display:grid;grid-template-columns:.8fr 2fr;gap:70px;padding-bottom:45px;border-bottom:1px solid var(--line)}.seo-footer__brand p{max-width:270px;color:var(--muted);line-height:1.5}.seo-footer__nav{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.seo-footer h3{font-size:15px}.seo-footer__nav a{display:block;margin:12px 0;color:var(--muted);font-size:14px}.seo-footer__bottom{padding-top:25px;color:var(--muted);font-size:13px}.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s,transform .6s}.reveal.is-visible{opacity:1;transform:none}@media(max-width:800px){.seo-hero__grid,.seo-faq,.seo-footer__grid{grid-template-columns:1fr}.seo-hero__grid{gap:38px}.seo-hero h1{font-size:40px}.seo-cards,.seo-steps{grid-template-columns:1fr}.seo-faq{gap:30px}.seo-footer__grid{gap:35px}}@media(max-width:560px){.seo-header{top:10px}.seo-header__inner{height:56px}.seo-header__cta{padding:10px 12px}.seo-hero{padding-top:100px}.seo-hero h1{font-size:34px}.seo-lead{font-size:16px}.seo-section{padding:70px 0}.seo-section h2{font-size:28px}.seo-try{padding:44px 18px}.seo-try h2{font-size:29px}.seo-footer__nav{grid-template-columns:repeat(2,1fr)}.seo-footer{padding-top:46px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.reveal{opacity:1;transform:none}}

/* Compact SEO hero visuals */
.seo-hero__visual img{height:420px;aspect-ratio:auto}
@media(max-width:800px){.seo-hero__grid{gap:32px}.seo-hero__visual img{height:300px}}
@media(max-width:560px){.seo-hero{padding-bottom:54px}.seo-hero__visual{border-radius:14px}.seo-hero__visual img{height:220px}}
@media(max-width:640px){.seo-hero__visual img{height:230px}}

/* Motion system v2 */
.seo-header__inner{
  box-shadow:0 10px 40px rgba(25,35,65,.07);
  transition:box-shadow .35s ease,transform .35s cubic-bezier(.2,.8,.2,1);
}
.seo-header__inner:hover{box-shadow:0 16px 48px rgba(25,35,65,.12);transform:translateY(-2px)}
.seo-header__cta,.seo-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  line-height:1.15;
  white-space:nowrap;
  position:relative;
  overflow:hidden;
  isolation:isolate;
  box-shadow:0 8px 20px rgba(56,111,222,.18);
  transition:transform .28s cubic-bezier(.2,.8,.2,1),box-shadow .28s ease,background-color .28s ease;
}
.seo-header__cta::before,.seo-btn::before{
  content:"";
  position:absolute;
  inset:-2px;
  z-index:0;
  pointer-events:none;
  background:linear-gradient(105deg,transparent 20%,rgba(255,255,255,.38) 45%,transparent 70%);
  transform:translateX(-130%);
  transition:transform .65s cubic-bezier(.2,.8,.2,1);
}
.seo-header__cta:hover,.seo-btn:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(56,111,222,.27)}
.seo-header__cta:hover::before,.seo-btn:hover::before{transform:translateX(130%)}
.seo-header__cta:active,.seo-btn:active{transform:translateY(-1px) scale(.98)}
.seo-btn--ghost{box-shadow:none}
.seo-btn--ghost:hover{background:#f8faff;box-shadow:0 12px 26px rgba(28,39,70,.09)}
.seo-hero__visual::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(115deg,transparent 25%,rgba(255,255,255,.26) 48%,transparent 70%);
  transform:translateX(-130%);
  animation:seo-shimmer 6s 1.2s ease-in-out infinite;
}
.seo-hero__visual img{animation:seo-float 7s ease-in-out infinite;will-change:transform}
.seo-card,.seo-step{position:relative;overflow:hidden;transition:transform .38s cubic-bezier(.2,.8,.2,1),box-shadow .38s ease,border-color .38s ease}
.seo-card::after,.seo-step::after{
  content:"";
  position:absolute;
  width:130px;
  height:130px;
  right:-75px;
  bottom:-85px;
  border-radius:50%;
  background:rgba(56,111,222,.08);
  transform:scale(.7);
  transition:transform .45s cubic-bezier(.2,.8,.2,1),opacity .45s ease;
}
.seo-card:hover{transform:translateY(-8px) rotateX(1deg);border-color:#cfdbf5;box-shadow:0 24px 55px rgba(30,40,70,.12)}
.seo-card:hover::after,.seo-step:hover::after{transform:scale(1.35)}
.seo-card:hover .seo-card__num{transform:rotate(-8deg) scale(1.08);box-shadow:0 8px 18px rgba(56,111,222,.18)}
.seo-card__num{transition:transform .38s cubic-bezier(.2,.8,.2,1),box-shadow .38s ease}
.seo-step:hover{transform:translateY(-7px);box-shadow:0 24px 50px rgba(20,26,40,.2)}
.seo-faq details{transition:background-color .3s ease,padding .3s ease,border-color .3s ease}
.seo-faq details:hover{background:linear-gradient(90deg,rgba(56,111,222,.045),transparent 75%)}
.seo-faq summary{transition:color .28s ease,transform .28s ease}
.seo-faq summary:hover{color:var(--blue);transform:translateX(3px)}
.seo-faq summary::after{transition:transform .36s cubic-bezier(.2,.8,.2,1),background-color .28s ease,color .28s ease,box-shadow .28s ease}
.seo-faq details[open] summary::after{transform:rotate(135deg) scale(1.06);box-shadow:0 8px 18px rgba(56,111,222,.22)}
.seo-answer{max-height:none!important;height:0;will-change:height,opacity,transform}
.seo-faq details[open] .seo-answer{max-height:none}
.seo-try::before{animation:seo-orbit 9s ease-in-out infinite;transform-origin:40% 60%}
.seo-footer__nav a{position:relative;width:max-content;transition:color .25s ease,transform .25s ease}
.seo-footer__nav a::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.seo-footer__nav a:hover{color:var(--blue);transform:translateX(3px)}
.seo-footer__nav a:hover::after{transform:scaleX(1)}
.motion-reveal{opacity:0;transform:translateY(30px) scale(.985);filter:blur(7px);transition:opacity .72s ease,transform .72s cubic-bezier(.2,.8,.2,1),filter .72s ease;transition-delay:calc(var(--motion-order,0) * 75ms)}
.motion-reveal.is-visible{opacity:1;transform:translateY(0) scale(1);filter:blur(0)}
@keyframes seo-float{0%,100%{transform:scale(1) translateY(0)}50%{transform:scale(1.012) translateY(-5px)}}
@keyframes seo-shimmer{0%,65%{transform:translateX(-130%)}85%,100%{transform:translateX(130%)}}
@keyframes seo-orbit{0%,100%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(-28px,24px,0) scale(1.08)}}
@media(hover:none){.seo-header__inner:hover,.seo-header__cta:hover,.seo-btn:hover,.seo-card:hover,.seo-step:hover,.seo-faq summary:hover,.seo-footer__nav a:hover{transform:none}}
@media(prefers-reduced-motion:reduce){
  .seo-hero__visual img,.seo-hero__visual::after,.seo-try::before{animation:none!important}
  .motion-reveal{opacity:1!important;transform:none!important;filter:none!important}
  .seo-header__inner,.seo-header__cta,.seo-btn,.seo-card,.seo-step,.seo-faq summary,.seo-faq summary::after,.seo-footer__nav a{transition:none!important}
}

/* Rich content layout v7 */
.seo-section{padding:68px 0}
.seo-section__head{margin-bottom:28px}
.seo-section--last{padding-top:18px;padding-bottom:68px}
.seo-section--detail{background:linear-gradient(180deg,#f6f6f6 0%,#eef3ff 100%)}
.seo-detail{display:grid;grid-template-columns:1.04fr .96fr;gap:44px;align-items:center}
.seo-detail__visual{position:relative;overflow:hidden;border:1px solid rgba(56,111,222,.13);border-radius:18px;background:#fff;box-shadow:0 20px 55px rgba(30,48,90,.1)}
.seo-detail__visual::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(115deg,transparent 25%,rgba(255,255,255,.28) 48%,transparent 70%);transform:translateX(-130%);animation:seo-shimmer 7s 1.5s ease-in-out infinite}
.seo-detail__visual img{display:block;width:100%;height:390px;object-fit:cover;transition:transform .7s cubic-bezier(.2,.8,.2,1)}
.seo-detail__visual:hover img{transform:scale(1.035)}
.seo-detail__content h2{margin:0;font-size:36px;line-height:1.14;letter-spacing:-.025em}
.seo-detail__lead{margin:16px 0 22px;color:var(--muted);font-size:16px;line-height:1.6}
.seo-checklist{display:grid;gap:9px;margin:0;padding:0;list-style:none}
.seo-checklist li{display:grid;grid-template-columns:38px 1fr;gap:13px;padding:13px 14px;border:1px solid rgba(56,111,222,.1);border-radius:12px;background:rgba(255,255,255,.72);transition:transform .3s ease,background-color .3s ease,box-shadow .3s ease}
.seo-checklist li:hover{transform:translateX(5px);background:#fff;box-shadow:0 12px 30px rgba(30,48,90,.08)}
.seo-checklist li>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#e7efff;color:var(--blue);font-size:12px;font-weight:800}
.seo-checklist strong{display:block;margin:1px 0 4px;font-size:14px}
.seo-checklist p{margin:0;color:var(--muted);font-size:13px;line-height:1.45}
.seo-faq__intro{max-width:330px;margin:16px 0 0;color:var(--muted);font-size:15px;line-height:1.55}
.seo-footer{margin-top:0;padding-top:28px}
.seo-footer__spotlight{display:flex;align-items:center;justify-content:space-between;gap:40px;margin-bottom:18px;padding:32px 36px;border-radius:18px;background:linear-gradient(120deg,#1f2533,#263a66);color:#fff;overflow:hidden;position:relative}
.seo-footer__spotlight::after{content:"";position:absolute;width:240px;height:240px;right:-90px;top:-125px;border-radius:50%;background:rgba(79,126,224,.55);animation:seo-orbit 10s ease-in-out infinite}
.seo-footer__spotlight>div,.seo-footer__spotlight>.seo-btn{position:relative;z-index:1}
.seo-footer__spotlight>.seo-btn{flex:0 0 auto;min-width:182px}
.seo-footer__spotlight h2{max-width:620px;margin:0;font-size:29px;line-height:1.18;letter-spacing:-.025em}
.seo-footer__spotlight p:not(.seo-kicker){max-width:660px;margin:11px 0 0;color:#cbd2e2;font-size:14px;line-height:1.55}
.seo-footer__facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:28px}
.seo-footer__facts span{padding:12px 15px;border:1px solid var(--line);border-radius:10px;background:#fafafa;color:#626573;font-size:13px;text-align:center}
.seo-footer__grid{grid-template-columns:.82fr 2.18fr;gap:52px;padding-bottom:30px}
.seo-footer__brand p{max-width:310px;margin:13px 0;color:var(--muted);font-size:14px;line-height:1.55}
.seo-footer__nav{grid-template-columns:repeat(4,1fr);gap:18px}
.seo-footer__bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px}

@media(max-width:900px){
  .seo-detail{grid-template-columns:1fr;gap:28px}
  .seo-detail__visual img{height:340px}
  .seo-footer__nav{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:800px){
  .seo-footer__spotlight{align-items:flex-start;flex-direction:column;gap:22px}
  .seo-footer__grid{gap:28px}
}
@media(max-width:560px){
  .seo-section{padding:48px 0}
  .seo-section--last{padding-top:10px;padding-bottom:48px}
  .seo-section__head{margin-bottom:22px}
  .seo-detail{gap:22px}
  .seo-detail__visual{border-radius:14px}
  .seo-detail__visual img{height:224px}
  .seo-detail__content h2{font-size:28px}
  .seo-checklist li{padding:11px}
  .seo-footer{padding-top:14px}
  .seo-footer__spotlight{padding:26px 20px}
  .seo-footer__spotlight>.seo-btn{width:100%;min-width:0}
  .seo-footer__spotlight h2{font-size:25px}
  .seo-footer__facts{grid-template-columns:1fr;gap:7px;margin-bottom:24px}
  .seo-footer__facts span{text-align:left}
  .seo-footer__nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 12px}
  .seo-footer__bottom{flex-direction:column;gap:7px}
}
@media(prefers-reduced-motion:reduce){
  .seo-detail__visual::after,.seo-footer__spotlight::after{animation:none!important}
}

/* Responsive/header/button system v8 */
:root{
  --header-h:64px;
  --header-top:20px;
  --header-safe:112px;
  --space-1:8px;
  --space-2:12px;
  --space-3:16px;
  --space-4:24px;
  --space-5:32px;
  --space-6:48px;
  --space-7:64px;
  --button-h:44px;
  --button-radius:8px;
}
html{scroll-padding-top:var(--header-safe);overflow-x:clip}
body{overflow-x:clip}
[id]{scroll-margin-top:var(--header-safe)}
.seo-header{top:var(--header-top);z-index:100}
.seo-header__inner{height:var(--header-h);background:rgba(255,255,255,.94);border-color:rgba(40,40,43,.12);box-shadow:0 10px 36px rgba(27,38,66,.09);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.seo-hero{padding-top:calc(var(--header-safe) + 18px)}
.seo-header__cta,.seo-btn{
  min-height:var(--button-h);
  height:var(--button-h);
  padding:0 18px;
  border:1px solid transparent;
  border-radius:var(--button-radius);
  font-size:15px;
  font-weight:650;
  line-height:1;
  cursor:pointer;
}
.seo-header__cta:hover,.seo-btn:hover{background:#2f62ca}
.seo-btn--ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.seo-btn--ghost:hover{border-color:#9db7ec;color:#2457bd;background:#f5f8ff}
.seo-header__cta:focus-visible,.seo-btn:focus-visible,.seo-logo:focus-visible,.seo-footer a:focus-visible,.seo-faq summary:focus-visible{
  outline:3px solid rgba(56,111,222,.42);
  outline-offset:3px;
}
.seo-header__cta:active,.seo-btn:active{transform:translateY(0) scale(.97);box-shadow:0 5px 12px rgba(56,111,222,.18)}
.seo-header__cta[aria-disabled="true"],.seo-btn[aria-disabled="true"],.seo-header__cta:disabled,.seo-btn:disabled{
  opacity:.46;
  pointer-events:none;
  cursor:not-allowed;
  box-shadow:none;
  filter:saturate(.45);
}
.seo-header__cta[aria-busy="true"],.seo-btn[aria-busy="true"]{pointer-events:none;cursor:wait}
.seo-header__cta[aria-busy="true"]::after,.seo-btn[aria-busy="true"]::after{
  content:"";
  width:14px;
  height:14px;
  margin-left:9px;
  border:2px solid rgba(255,255,255,.45);
  border-top-color:#fff;
  border-radius:50%;
  animation:seo-button-spin .7s linear infinite;
}
@keyframes seo-button-spin{to{transform:rotate(360deg)}}

@media(min-width:1440px){
  .seo-container{width:min(1180px,calc(100% - 64px))}
  .seo-hero h1{font-size:54px}
  .seo-hero__grid{gap:64px}
}
@media(min-width:1280px) and (max-width:1439px){
  .seo-container{width:min(1128px,calc(100% - 48px))}
  .seo-hero__grid{gap:52px}
}
@media(max-width:1279px){
  .seo-container{width:min(1040px,calc(100% - 40px))}
  .seo-hero__grid{gap:40px}
  .seo-hero h1{font-size:46px}
}
@media(max-width:1024px){
  :root{--header-top:16px;--header-safe:104px}
  .seo-container{width:min(920px,calc(100% - 32px))}
  .seo-hero{padding-bottom:56px}
  .seo-hero h1{font-size:42px}
  .seo-section{padding:56px 0}
  .seo-card,.seo-step{padding:24px}
}
@media(max-width:768px){
  :root{--header-h:60px;--header-top:12px;--header-safe:92px}
  .seo-container{width:calc(100% - 28px)}
  .seo-header__inner{padding:0 14px}
  .seo-hero{padding-top:calc(var(--header-safe) + 14px);padding-bottom:48px}
  .seo-hero__grid{gap:28px}
  .seo-hero h1{font-size:38px}
  .seo-lead{margin-top:18px;font-size:17px}
  .seo-actions{margin-top:24px}
  .seo-section{padding:52px 0}
  .seo-section h2,.seo-detail__content h2{font-size:31px}
  .seo-footer__spotlight{padding:28px}
}
@media(max-width:430px){
  :root{--header-h:56px;--header-top:10px;--header-safe:82px;--button-h:42px}
  .seo-container{width:calc(100% - 24px)}
  .seo-header__inner{padding:0 12px;border-radius:10px}
  .seo-logo{font-size:22px}
  .seo-header__cta,.seo-btn{height:var(--button-h);min-height:var(--button-h);padding:0 14px;font-size:14px}
  .seo-hero{padding-top:calc(var(--header-safe) + 12px);padding-bottom:40px}
  .seo-hero h1{font-size:34px;line-height:1.08}
  .seo-lead{font-size:16px;line-height:1.5}
  .seo-actions{gap:8px;margin-top:20px}
  .seo-section{padding:44px 0}
  .seo-section h2,.seo-detail__content h2{font-size:28px}
  .seo-card{min-height:0}
  .seo-card h3{margin-top:20px}
  .seo-step:before{margin-bottom:24px}
  .seo-footer__spotlight{padding:24px 18px}
  .seo-footer__nav{grid-template-columns:1fr}
}
@media(max-width:390px){
  .seo-container{width:calc(100% - 20px)}
  .seo-hero h1{font-size:32px}
  .seo-actions{align-items:stretch;flex-direction:column}
  .seo-actions .seo-btn{width:100%}
  .seo-footer__nav{grid-template-columns:1fr}
}
@media(max-width:360px){
  .seo-header__cta{padding:0 12px;font-size:13px}
  .seo-hero h1{font-size:30px}
  .seo-section h2,.seo-detail__content h2{font-size:26px}
  .seo-footer__nav{grid-template-columns:1fr}
}

/* Informative SEO depth section in the page content */
.seo-content-depth{padding-top:36px}
.seo-depth-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.seo-depth-card{padding:24px;border:1px solid var(--line);border-radius:14px;background:linear-gradient(145deg,#fff,#f7f9ff);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.seo-depth-card:hover{transform:translateY(-5px);border-color:#c8d8f6;box-shadow:0 16px 34px rgba(35,57,105,.09)}
.seo-depth-card>span{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#e9f0ff;color:var(--blue);font-size:12px;font-weight:800}
.seo-depth-card h3{margin:18px 0 10px;font-size:19px;line-height:1.22}
.seo-depth-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.58}
.seo-depth-note{display:grid;grid-template-columns:180px 1fr;gap:24px;margin-top:14px;padding:20px 24px;border-left:3px solid var(--blue);border-radius:0 12px 12px 0;background:#f2f6ff}
.seo-depth-note strong{font-size:15px;color:#244f9f}
.seo-depth-note p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}
@media(max-width:800px){
  .seo-depth-grid{grid-template-columns:1fr}
  .seo-depth-note{grid-template-columns:1fr;gap:8px}
}
@media(max-width:560px){
  .seo-content-depth{padding-top:24px}
  .seo-depth-card{padding:20px}
  .seo-depth-card h3{margin-top:14px;font-size:18px}
  .seo-depth-note{padding:18px}
}

/* SEO page redesign v10 */
.seo-hero--v2{position:relative;overflow:hidden;background:radial-gradient(circle at 85% 15%,rgba(94,139,232,.14),transparent 34%),linear-gradient(180deg,#fff,#f8faff)}
.seo-hero--v2::before{content:"";position:absolute;width:420px;height:420px;left:-260px;bottom:-280px;border:1px solid rgba(56,111,222,.12);border-radius:50%}
.seo-breadcrumb{position:relative;z-index:1;display:flex;gap:9px;align-items:center;margin-bottom:32px;color:#8a8d99;font-size:13px}
.seo-breadcrumb a{color:#5f6572;transition:color .2s ease}
.seo-breadcrumb a:hover{color:var(--blue)}
.seo-hero--v2 .seo-hero__grid{position:relative;z-index:1}
.seo-hero--v2 h1{max-width:680px;font-size:50px}
.seo-hero-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}
.seo-hero-meta span{padding:8px 11px;border:1px solid #e1e7f3;border-radius:999px;background:rgba(255,255,255,.74);color:#6b6f7d;font-size:12px}
.seo-toc-section{position:relative;z-index:4;margin-top:-24px}
.seo-toc{display:flex;align-items:center;gap:7px;padding:14px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.96);box-shadow:0 16px 42px rgba(30,45,80,.08);overflow-x:auto;scrollbar-width:none}
.seo-toc::-webkit-scrollbar{display:none}
.seo-toc strong{flex:0 0 auto;padding:0 12px;font-size:13px}
.seo-toc a{flex:0 0 auto;padding:10px 13px;border-radius:8px;color:#686c79;font-size:13px;transition:background .2s ease,color .2s ease}
.seo-toc a:hover{background:#edf3ff;color:#2457bd}
.seo-overview-section{padding-top:76px}
.seo-overview{display:grid;grid-template-columns:1.15fr .85fr;gap:58px;align-items:start}
.seo-overview__copy h2{margin:0;font-size:38px;line-height:1.14;letter-spacing:-.03em}
.seo-overview__copy>p:not(.seo-kicker){max-width:690px;margin:17px 0 0;color:var(--muted);font-size:16px;line-height:1.7}
.seo-keyword-panel{padding:26px;border:1px solid #dfe7f5;border-radius:16px;background:linear-gradient(145deg,#f6f9ff,#fff)}
.seo-keyword-panel__label{display:block;margin-bottom:14px;color:#315fae;font-size:12px;font-weight:800;letter-spacing:.09em;text-transform:uppercase}
.seo-keyword-panel>div{display:flex;gap:8px;flex-wrap:wrap}
.seo-keyword-panel>div span{padding:9px 11px;border:1px solid #dfe7f5;border-radius:999px;background:#fff;color:#5f6472;font-size:12px}
.seo-keyword-panel>p{margin:16px 0 0;color:var(--muted);font-size:13px;line-height:1.55}
.seo-knowledge-section{background:linear-gradient(180deg,#f6f8fc,#eef3fb)}
.seo-knowledge-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.seo-knowledge-card{position:relative;min-height:215px;padding:25px;border:1px solid rgba(56,111,222,.12);border-radius:15px;background:rgba(255,255,255,.86);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.seo-knowledge-card:hover{transform:translateY(-5px);border-color:#b9cdf3;box-shadow:0 18px 40px rgba(34,57,105,.09)}
.seo-knowledge-card>span{color:#8ca8df;font-size:12px;font-weight:800}
.seo-knowledge-card h3{margin:28px 0 11px;font-size:19px;line-height:1.28}
.seo-knowledge-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
.seo-decision-list{overflow:hidden;border:1px solid var(--line);border-radius:15px;background:#fff}
.seo-decision-row{display:grid;grid-template-columns:46px 1fr 190px;gap:20px;align-items:center;padding:24px;border-bottom:1px solid var(--line);transition:background .25s ease}
.seo-decision-row:last-child{border-bottom:0}
.seo-decision-row:hover{background:#f7f9ff}
.seo-decision-row>span{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#eaf1ff;color:var(--blue);font-size:12px;font-weight:800}
.seo-decision-row h3{margin:0 0 6px;font-size:17px}
.seo-decision-row p{margin:0;color:var(--muted);font-size:14px;line-height:1.5}
.seo-decision-row>strong{color:#315fae;font-size:13px;text-align:right}

@media(max-width:1024px){
  .seo-hero--v2 h1{font-size:44px}
  .seo-overview{gap:34px}
}
@media(max-width:800px){
  .seo-breadcrumb{margin-bottom:24px}
  .seo-hero--v2 h1{font-size:39px}
  .seo-overview{grid-template-columns:1fr;gap:24px}
  .seo-overview__copy h2{font-size:32px}
  .seo-knowledge-grid{grid-template-columns:1fr}
  .seo-decision-row{grid-template-columns:42px 1fr}
  .seo-decision-row>strong{grid-column:2;text-align:left}
}
@media(max-width:560px){
  .seo-breadcrumb{margin-bottom:20px;font-size:12px}
  .seo-hero--v2 h1{font-size:32px}
  .seo-hero-meta{margin-top:18px}
  .seo-hero-meta span{border-radius:8px}
  .seo-toc-section{margin-top:-16px}
  .seo-toc{padding:9px;flex-wrap:wrap;overflow-x:visible}
  .seo-toc strong{display:none}
  .seo-toc a{flex:1 1 calc(33.333% - 7px);text-align:center}
  .seo-overview-section{padding-top:54px}
  .seo-overview__copy h2{font-size:28px}
  .seo-overview__copy>p:not(.seo-kicker){font-size:15px}
  .seo-keyword-panel{padding:20px}
  .seo-keyword-panel>div span{width:100%;border-radius:8px}
  .seo-knowledge-card{min-height:0;padding:21px}
  .seo-knowledge-card h3{margin-top:20px;font-size:18px}
  .seo-decision-row{grid-template-columns:36px 1fr;gap:14px;padding:19px}
  .seo-decision-row>span{width:34px;height:34px}
}