/* ======================================================
   세곡동모임장소 — 바이탈바이브 style.css v2.0
   Garden Editorial — Bottle Green + Burnt Terracotta + Brass Gold
   ====================================================== */

:root {
  --ink:            #17251b;   /* bottle green, near-black */
  --ink-mid:        #24382a;
  --ink-soft:       #5c6a55;
  --bg:             #f7f1e4;   /* warm ivory */
  --surface:        #fffdf8;
  --surface-alt:    #efe6d2;
  --rust:           #b5551f;   /* burnt terracotta accent */
  --rust-deep:      #93441a;
  --gold:           #a9814a;   /* brass gold */
  --gold-light:     #cbab74;
  --white:          #fbf6e9;   /* text-on-dark */
  --border:         rgba(23,37,27,0.12);
  --border-gold:    rgba(169,129,74,0.35);
  --text-on-light:  #17251b;
  --text-on-dark:   #fbf6e9;
  --shadow-soft:    0 10px 30px rgba(23,37,27,0.10);
  --shadow-deep:    0 20px 48px rgba(23,37,27,0.22);

  --radius-btn:     3px;
  --radius-card:    6px;

  --font-h1:        'ChosunIlboMyungjo', 'Gowun Batang', 'Noto Serif KR', serif;
  --font-quote:     'Gowun Batang', 'Noto Serif KR', serif;
  --font-h2:        'Wanted Sans Variable', 'Pretendard', 'Noto Sans KR', sans-serif;
  --font-body:      'Pretendard', 'Noto Sans KR', sans-serif;
  --font-num:       'Paperlogy', 'Pretendard', sans-serif;
  --font-caption:   'JoseonGulim', 'Pretendard', sans-serif;
  --font-en:        'Onest', sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px; --sp-5: 24px;
  --sp-6: 32px; --sp-7: 48px; --sp-8: 64px; --sp-9: 96px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text-on-light);
  background: var(--bg);
  overflow-x: hidden;
}
body, p, h1, h2, h3, h4, h5, h6, li, td, th, a, span, div, button {
  word-break: keep-all;
  overflow-wrap: break-word;
}
img { max-width: 100%; height: auto; display: block; }
.br-mobile { display: none; }
.br-desktop { display: inline; }
@media (max-width: 768px) {
  .br-mobile { display: inline; }
  .br-desktop { display: none; }
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--font-h2); line-height: 1.28; margin: 0 0 var(--sp-4); color: var(--ink); font-weight: 600; }
h1 { font-family: var(--font-h1); font-weight: 400; font-size: clamp(2.1rem, 5.2vw, 3.6rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.1rem; }
p { line-height: 1.75; margin: 0 0 var(--sp-4); }

::selection { background: var(--rust); color: var(--white); }

/* ── 커스텀 커서 (데스크톱 전용) ── */
.cursor-dot, .cursor-ring { display: none; }
@media (hover: hover) and (pointer: fine) {
  .cursor-dot {
    display: block; width: 6px; height: 6px; background: var(--rust); border-radius: 50%;
    position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9999;
    transform: translate(-50%, -50%); transition: width .2s, height .2s, background .2s;
  }
  .cursor-ring {
    display: block; width: 34px; height: 34px; border: 1px solid var(--gold);
    border-radius: 50%; position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9998;
    transform: translate(-50%, -50%); transition: width .25s var(--ease-out), height .25s var(--ease-out), border-color .2s, background .2s;
  }
  body.cursor-hover .cursor-dot { width: 0; height: 0; }
  body.cursor-hover .cursor-ring { width: 56px; height: 56px; background: rgba(169,129,74,.12); border-color: transparent; }
}

/* ── 스크롤 진행바 ── */
.progress-bar {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%; background: var(--rust); z-index: 9997;
  transition: width 0.1s linear;
}

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--text-on-dark);
  padding: var(--sp-3) var(--sp-4); z-index: 999;
}
.skip-link:focus { left: var(--sp-4); top: var(--sp-4); }

/* ── 버튼 ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5em; position: relative; overflow: hidden; z-index: 1;
  padding: 0.95rem 2rem; border-radius: var(--radius-btn);
  font-family: var(--font-en), var(--font-body); font-weight: 600; font-size: 0.86rem;
  letter-spacing: 0.03em; border: 1.5px solid transparent; cursor: pointer;
  transition: color .3s, transform .2s, box-shadow .3s, border-color .3s;
}
.btn::before {
  content: ''; position: absolute; inset: 0; z-index: -1; transform: scaleX(0); transform-origin: right;
  transition: transform .4s var(--ease-out);
}
.btn--primary { background: var(--rust); color: var(--text-on-dark); }
.btn--primary::before { background: var(--rust-deep); }
.btn--ghost { background: transparent; border-color: currentColor; color: var(--ink); }
.btn--ghost::before { background: rgba(23,37,27,0.08); }
.btn--lg { padding: 1.15rem 2.5rem; font-size: 0.92rem; }
@media (hover: hover) and (pointer: fine) {
  .btn:hover::before { transform: scaleX(1); transform-origin: left; }
  .btn:hover { box-shadow: var(--shadow-soft); }
  .card:hover, .feature-card:hover, .related-card:hover, .category-card:hover, .channel-card:hover {
    transform: translateY(-5px); box-shadow: var(--shadow-deep); border-color: var(--border-gold);
  }
}
.btn:active, .feature-card:active, .related-card:active { transform: translateY(-1px); }

/* ── 헤더 ── */
.site-header {
  position: sticky; top: 0; z-index: 100; background: rgba(247,241,228,0.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  max-width: 1320px; margin: 0 auto; padding: var(--sp-3) var(--sp-5);
  display: flex; align-items: center; gap: var(--sp-5);
}
.brand { display: flex; flex-direction: column; line-height: 1.15; }
.brand__ko { font-family: var(--font-h1); font-size: 1.4rem; color: var(--ink); }
.brand__sub { font-family: var(--font-en); font-size: 0.58rem; font-weight: 500; letter-spacing: 0.18em; color: var(--gold); text-transform: uppercase; }
.hdr-nav { display: flex; gap: var(--sp-5); margin-left: auto; font-family: var(--font-h2); }
.hdr-nav a { font-size: 0.88rem; font-weight: 500; color: var(--ink-mid); }
@media (hover: hover) and (pointer: fine) { .hdr-nav a:hover { color: var(--rust); } }
.hdr-rating {
  display: flex; align-items: center; gap: 0.3em; font-family: var(--font-num); font-size: 0.82rem;
  font-weight: 600; color: var(--ink); white-space: nowrap; padding: 0.35em 0.7em; border: 1px solid var(--border-gold); border-radius: var(--radius-btn);
}
.hdr-rating__star { color: var(--gold); }
.hdr-cta { margin-left: var(--sp-2); white-space: nowrap; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px; margin-left: auto; }
.hamburger span { width: 22px; height: 2px; background: var(--ink); display: block; }
.mob-nav { display: none; }

@media (max-width: 1180px) { .hdr-rating { display: none; } }
@media (max-width: 1024px) {
  .site-header__inner { gap: var(--sp-3); }
  .hdr-nav { gap: var(--sp-4); }
}
@media (max-width: 768px) {
  .hdr-nav, .hdr-cta, .hdr-rating { display: none; }
  .hamburger { display: flex; }
  .mob-nav {
    display: flex; flex-direction: column; max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
    background: var(--bg); border-top: 1px solid var(--border); font-family: var(--font-h2);
  }
  .mob-nav.is-open { max-height: 480px; overflow-y: auto; }
  .mob-nav a { padding: var(--sp-3) var(--sp-5); border-bottom: 1px solid var(--border); }
  body { padding-bottom: 64px; }
}

/* ── 히어로 (홈) ── */
.home-hero { position: relative; height: 92vh; min-height: 560px; overflow: hidden; display: flex; align-items: flex-end; }
.home-hero__slider { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transition: opacity 1.4s ease;
}
.hero-slide.is-active { opacity: 1; }
.home-hero__content {
  position: relative; z-index: 3; width: 100%; max-width: 1320px; margin: 0 auto;
  padding: var(--sp-8) var(--sp-6) var(--sp-8); color: var(--text-on-dark);
}
.home-hero::after {
  content: ''; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: linear-gradient(to bottom, rgba(15,20,13,0.25) 0%, rgba(15,20,13,0.05) 28%, rgba(15,20,13,0.55) 68%, rgba(15,20,13,0.92) 100%);
}
.home-hero__content h1, .home-hero__content .hero-sub, .home-hero__content .dp-eyebrow { color: var(--text-on-dark); }
.home-hero__content h1 { color: var(--white); }
.home-hero__content .btn--ghost, .dp-hero__content .btn--ghost {
  color: var(--text-on-dark); border-color: rgba(251,246,233,0.6);
}
.home-hero__content .btn--ghost::before, .dp-hero__content .btn--ghost::before { background: rgba(251,246,233,0.12); }
.home-hero__actions { display: flex; gap: var(--sp-4); margin-top: var(--sp-6); flex-wrap: wrap; align-items: center; }
.home-hero__trust {
  display: flex; gap: var(--sp-5); margin-top: var(--sp-6); flex-wrap: wrap; font-family: var(--font-caption);
  font-size: 0.8rem; color: rgba(251,246,233,0.82);
}
.home-hero__trust span { display: flex; align-items: center; gap: 0.4em; }
.home-hero__trust span::before { content: '·'; color: var(--gold); font-weight: 700; }
.home-hero__trust span:first-child::before { content: none; }
@media (max-width: 768px) {
  .home-hero { height: 94vh; }
  .home-hero__trust { font-size: 0.74rem; gap: var(--sp-3); }
}

.dp-eyebrow {
  font-family: var(--font-num); text-transform: uppercase; letter-spacing: 0.22em; font-size: 0.72rem;
  font-weight: 600; color: var(--gold-light); margin: 0 0 var(--sp-3);
}
.hero-sub { font-size: 1.05rem; color: var(--ink-soft); max-width: 42ch; }
.hero-badge {
  display: inline-block; margin-top: var(--sp-3); padding: 0.4em 1em; border-radius: var(--radius-btn);
  background: var(--rust); color: var(--text-on-dark); font-family: var(--font-num); font-weight: 600; font-size: 0.82rem;
}

/* H1 라인 마스크 리빌 (h1은 순수 텍스트만 유지 — 마스크는 부모 div에서 처리) */
.h1-mask { overflow: hidden; }
.h1-reveal { transform: translateY(115%); transition: transform 1s var(--ease-out); }
.h1-reveal.is-up { transform: translateY(0); }

/* ── 공용 섹션 폭 ── */
.home-about, .home-categories, .home-stats, .home-faq, .home-reviews, .dp-hero, .dp-intro, .dp-stats, .dp-features,
.dp-faq, .dp-related, .dp-cta, .rsv-hero, .rsv-channels, .rsv-process, .rsv-why, .smp-hero, .smp-basic,
.smp-cat, .gd-hero, .gd-intro, .gd-checklist, .gd-compare, .gd-channels, .gd-mistakes, .gd-region,
.gd-pages, .gd-season, .gd-prep, .gd-summary, .gd-stats, .gd-timeline, .gd-scenario, .gd-detail, .page-404 {
  max-width: 1160px; margin: 0 auto; padding: var(--sp-9) var(--sp-5);
}
.gd { display: block; }
.page-404 { text-align: center; padding: var(--sp-9) var(--sp-5); }

.section-label {
  display: inline-block; font-family: var(--font-num); font-size: 0.72rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--rust); margin-bottom: var(--sp-3);
}

/* about-split */
.about-split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-8); align-items: center; }
.about-split__img img { border-radius: var(--radius-card); }
.about-split__body { display: flex; flex-direction: column; justify-content: center; }
.about-split--reverse { direction: rtl; }
.about-split--reverse > * { direction: ltr; }
@media (max-width: 768px) { .about-split { grid-template-columns: 1fr; } }

/* ── 그리드 유틸 ── */
.dp-g2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-6); }
.dp-g3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); }
.dp-stat3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); text-align: center; align-items: center; }
.category-grid, .feature-grid, .related-grid { min-width: 0; }
@media (max-width: 768px) { .dp-g2, .dp-g3 { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .dp-stat3 { grid-template-columns: 1fr; gap: var(--sp-4); } }

.category-card, .feature-card, .related-card, .channel-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); padding: var(--sp-5);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), border-color 0.3s;
}
.category-card { display: flex; flex-direction: column; gap: var(--sp-2); }
.category-card__cat { font-family: var(--font-num); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--rust); font-weight: 600; }
.category-card__title { font-family: var(--font-h1); font-size: 1.3rem; color: var(--ink); }
.category-card__hook { font-size: 0.88rem; color: var(--ink-soft); margin-top: 0.2em; }

.feature-card img, .related-card img { border-radius: var(--radius-card); margin-bottom: var(--sp-3); aspect-ratio: 4/3; object-fit: cover; }
.feature-card h3 { font-family: var(--font-h2); }
.related-card { display: block; padding: var(--sp-3); }
.related-card__title { display: block; padding: var(--sp-2) var(--sp-2) 0; font-weight: 600; font-family: var(--font-h2); }

.channel-card { text-align: center; }
.channel-card .btn { margin: var(--sp-2) var(--sp-1) 0; }

.stat-item { display: flex; flex-direction: column; gap: var(--sp-1); }
.stat-num { font-family: var(--font-num); font-size: clamp(2.2rem, 4vw, 3rem); font-weight: 700; color: var(--rust); letter-spacing: -0.02em; }
.stat-label { font-family: var(--font-caption); font-size: 0.88rem; color: var(--ink-soft); }

/* ── 실제 후기 (홈, CRO 신뢰요소) ── */
.home-reviews { background: var(--surface-alt); max-width: none; padding: var(--sp-9) var(--sp-5); }
.home-reviews__inner { max-width: 1160px; margin: 0 auto; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); }
.review-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); padding: var(--sp-6);
  display: flex; flex-direction: column; gap: var(--sp-4);
}
.review-card__quote { font-family: var(--font-quote); font-size: 1.02rem; line-height: 1.8; color: var(--ink); flex: 1; }
.review-card__quote::before { content: '“'; color: var(--gold); font-size: 1.4em; line-height: 0; vertical-align: -0.3em; }
.review-card__meta { display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; color: var(--ink-soft); font-family: var(--font-caption); }
.review-card__stars { color: var(--gold); }
@media (max-width: 768px) { .review-grid { grid-template-columns: 1fr; } }

/* ── 상세 페이지 히어로 ── */
.dp-hero { position: relative; max-width: none; padding: 0; height: 66vh; min-height: 420px; overflow: hidden; }
.dp-hero img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.dp-hero__scrim {
  position: absolute; left: 0; right: 0; bottom: 0; height: 62%;
  background: linear-gradient(0deg, rgba(15,20,13,0.82) 0%, rgba(15,20,13,0) 100%);
}
.dp-hero__content {
  position: absolute; left: 0; bottom: 0; width: 100%; max-width: 1160px; margin: 0 auto; left: 50%; transform: translateX(-50%);
  padding: var(--sp-6) var(--sp-5) var(--sp-8); color: var(--text-on-dark);
}
.dp-hero__content h1, .dp-hero__content .hero-sub, .dp-hero__content .dp-eyebrow, .dp-hero__content .breadcrumb { color: var(--text-on-dark); }
.dp-hero__content h1 { color: var(--white); }
.breadcrumb { font-family: var(--font-caption); font-size: 0.8rem; margin-bottom: var(--sp-3); opacity: 0.85; }
.breadcrumb span { margin: 0 var(--sp-2); }

/* 상세페이지 래퍼 */
.dp { display: block; }

/* intro split */
.dp-intro { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-8); align-items: center; }
.dp-intro--flip { direction: rtl; }
.dp-intro--flip > * { direction: ltr; }
.dp-intro__img img { border-radius: var(--radius-card); aspect-ratio: 4/3; object-fit: cover; }
.dp-intro__body { display: flex; flex-direction: column; justify-content: center; }
@media (max-width: 768px) { .dp-intro { grid-template-columns: 1fr; } }

.dp-features h2, .dp-related h2, .dp-faq__aside h2 { text-align: left; }

/* ── FAQ 아코디언 ── */
.dp-faq { display: grid; grid-template-columns: 1fr 2fr; gap: var(--sp-8); }
.dp-faq__aside { align-self: start; position: sticky; top: 96px; }
.dp-faq__list { display: flex; flex-direction: column; }
.dp-faq__aside .btn { margin-top: var(--sp-3); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
  width: 100%; text-align: left; background: none; border: 0; padding: var(--sp-4) 0; font-weight: 600;
  font-family: var(--font-h2); font-size: 1rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center;
  color: var(--ink);
}
.faq-q::after { content: '+'; font-size: 1.3rem; color: var(--rust); }
.faq-q[aria-expanded="true"]::after { content: '−'; }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.35s var(--ease-out); }
.faq-a > p { overflow: hidden; margin: 0; padding: 0; font-family: var(--font-quote); font-size: 1.02rem; }
.faq-item.is-open .faq-a { grid-template-rows: 1fr; }
.faq-item.is-open .faq-a > p { padding-bottom: var(--sp-4); }
@media (max-width: 768px) { .dp-faq { grid-template-columns: 1fr; } .dp-faq__aside { position: static; } }

/* ── CTA ── */
.dp-cta {
  text-align: center; background: var(--ink); color: var(--text-on-dark); border-radius: var(--radius-card);
  position: relative; overflow: hidden;
}
.dp-cta::before {
  content: ''; position: absolute; inset: 0; opacity: 0.5;
  background: radial-gradient(circle at 20% 20%, rgba(169,129,74,0.25), transparent 60%);
}
.dp-cta h2, .dp-cta p, .dp-cta > * { position: relative; }
.dp-cta h2, .dp-cta p { color: var(--text-on-dark); }
.dp-cta .btn--primary { margin-top: var(--sp-3); }

/* ── 프로세스 ── */
.proc-list { display: flex; list-style: none; margin: 0; padding: 0; }
.proc-step { flex: 1; position: relative; padding: 0 var(--sp-3); text-align: center; }
.proc-step:not(:last-child)::after {
  content: ''; position: absolute; top: 24px; left: 50%; width: 100%; height: 1px; background: var(--border-gold); z-index: 0;
}
.proc-num {
  position: relative; z-index: 1; margin: 0 auto var(--sp-3); width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center; background: var(--rust); color: var(--text-on-dark);
  font-weight: 700; font-family: var(--font-num);
}
.proc-step p { font-family: var(--font-h2); font-weight: 600; }
.proc-step small { color: var(--ink-soft); font-family: var(--font-body); font-weight: 400; }
@media (max-width: 768px) {
  .proc-list { flex-direction: column; gap: var(--sp-3); }
  .proc-step { padding: var(--sp-5) 0; }
  .proc-step::after { display: none; }
}

/* ── 체크리스트/표 (가이드) ── */
.check-list li { padding: var(--sp-3) 0 var(--sp-3) var(--sp-6); border-bottom: 1px solid var(--border); position: relative; }
.check-list li::before { content: '✓'; position: absolute; left: 0; color: var(--rust); font-weight: 700; font-family: var(--font-num); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 520px; }
th, td { text-align: left; padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--border); }
th { font-family: var(--font-h2); color: var(--ink); font-weight: 600; }

/* ── 사이트맵 페이지 ── */
.smp-intro { max-width: 1160px; margin: 0 auto; padding: 0 var(--sp-5) var(--sp-6); }
.smp-list li { padding: var(--sp-2) 0; border-bottom: 1px solid var(--border); }

/* ── 모바일 하단 바 ── */
.mob-bar { display: none; }
@media (max-width: 768px) {
  .mob-bar {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90; padding: var(--sp-3) var(--sp-4);
    background: var(--surface); border-top: 1px solid var(--border);
  }
  .mob-bar__btn { width: 100%; text-align: center; justify-content: center; }
}
.float-cta {
  position: fixed; right: var(--sp-5); bottom: var(--sp-6); z-index: 90; background: var(--rust); color: var(--text-on-dark);
  padding: var(--sp-4); border-radius: 50%; box-shadow: var(--shadow-deep); font-weight: 700; font-family: var(--font-num);
}
@media (max-width: 768px) { .float-cta { display: none; } }

/* ── 푸터 ── */
.site-footer { background: var(--ink); color: var(--text-on-dark); margin-top: var(--sp-8); }
.site-footer__inner {
  max-width: 1160px; margin: 0 auto; padding: var(--sp-9) var(--sp-5); display: grid;
  grid-template-columns: repeat(3, 1fr); gap: var(--sp-7);
}
.ftr-col { min-width: 0; }
.ftr-h { font-family: var(--font-num); font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-light); margin-bottom: var(--sp-4); }
.ftr-biz li, .ftr-links li { font-size: 0.9rem; padding: var(--sp-1) 0; color: rgba(251,246,233,0.82); }
@media (hover: hover) and (pointer: fine) { .ftr-links a:hover { text-decoration: underline; } }
.site-footer__bottom { text-align: center; padding: var(--sp-4); font-family: var(--font-en); font-size: 0.72rem; border-top: 1px solid rgba(251,246,233,0.15); color: rgba(251,246,233,0.55); }
@media (max-width: 768px) { .site-footer__inner { grid-template-columns: 1fr; gap: var(--sp-5); } }

/* ── Scroll reveal ── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes hero-drift { 0% { transform: scale(1.02) translateY(0); } 100% { transform: scale(1.07) translateY(-10px); } }
.hero-slide.is-active { animation: hero-drift 9s ease-in-out infinite alternate; }