/*
 * tips280/style.css  v1.0.0
 * 텔레그램 대화방 배경화면 가이드 전용 스타일
 * 그누보드5 완전 격리 | BEM 네이밍 | 모바일 퍼스트
 * 테마: 스카이블루·아쥬르 (개인화·대화방·배경)
 */

/* ── 리셋 ── */
#tg-280-wrapper,#tg-280-wrapper *,#tg-280-wrapper *::before,#tg-280-wrapper *::after{box-sizing:border-box;margin:0;padding:0;border:none;outline:none;text-decoration:none;list-style:none;background:none;font-style:normal}
#tg-280-wrapper h1,#tg-280-wrapper h2,#tg-280-wrapper h3,#tg-280-wrapper h4{font-size:inherit;font-weight:inherit;color:inherit;line-height:1.3}
#tg-280-wrapper p{margin-bottom:14px!important;line-height:1.75!important}
#tg-280-wrapper p:last-child{margin-bottom:0!important}

/* ── 변수 ── */
#tg-280-wrapper{
    --sky-400:#38bdf8;--sky-500:#0ea5e9;--sky-600:#0284c7;--sky-700:#0369a1;--sky-800:#075985;
    --azure-500:#2563eb;--azure-600:#1d4ed8;
    --amber-500:#f59e0b;--amber-600:#d97706;
    --slate-50:#f8fafc;--slate-100:#f1f5f9;--slate-200:#e2e8f0;--slate-300:#cbd5e1;--slate-400:#94a3b8;--slate-500:#64748b;--slate-700:#334155;--slate-800:#1e293b;--slate-900:#0f172a;
    --text-main:#1e293b;--text-sub:#475569;--border-r:14px;
    --shadow-sky:0 8px 28px rgba(14,165,233,0.12);
}

#tg-280-wrapper.tg-280-wrapper{max-width:1100px;margin:0 auto;width:100%;font-family:'Pretendard','Apple SD Gothic Neo','Malgun Gothic',sans-serif;color:var(--text-main);line-height:1.75;background-color:var(--slate-50);border-radius:20px;overflow:hidden;box-shadow:0 10px 40px rgba(14,165,233,0.08)}

/* ══════ 히어로 ══════ */
#tg-280-wrapper .tg-280-hero{position:relative;background:linear-gradient(135deg,#0369a1 0%,#075985 60%,#0c4a6e 100%);padding:52px 24px 52px;text-align:center;overflow:hidden}
#tg-280-wrapper .tg-280-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 70% 25%,rgba(56,189,248,0.2) 0%,transparent 55%),radial-gradient(circle at 25% 75%,rgba(37,99,235,0.12) 0%,transparent 50%);pointer-events:none}
#tg-280-wrapper .tg-280-hero::after{content:'';position:absolute;bottom:-1px;left:0;right:0;height:40px;background:var(--slate-50);clip-path:ellipse(55% 100% at 50% 100%)}
#tg-280-wrapper .tg-280-hero__inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:18px}
#tg-280-wrapper .tg-280-hero__badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,0.18)!important;color:#fff!important;font-size:0.82rem;font-weight:700;padding:6px 16px;border-radius:20px;border:1px solid rgba(255,255,255,0.25)}
#tg-280-wrapper .tg-280-hero__icon-flow{display:flex;align-items:center;gap:14px}
#tg-280-wrapper .tg-280-hero__icon-box{display:flex;align-items:center;justify-content:center;width:60px;height:60px;background:rgba(255,255,255,0.12)!important;border:2px solid rgba(255,255,255,0.28);border-radius:14px;font-size:1.8rem;color:#fff!important}
#tg-280-wrapper .tg-280-hero__icon-box--mid{background:rgba(56,189,248,0.25)!important;border-color:rgba(56,189,248,0.45)}
#tg-280-wrapper .tg-280-hero__icon-box--glow{background:rgba(255,255,255,0.22)!important;border-color:rgba(255,255,255,0.45);animation:tg280-pulse 2.5s ease-in-out infinite}
@keyframes tg280-pulse{0%,100%{box-shadow:0 0 0 0 rgba(56,189,248,0.3)}50%{box-shadow:0 0 0 14px rgba(56,189,248,0)}}
#tg-280-wrapper .tg-280-hero__flow-arrow{color:rgba(255,255,255,0.45)!important;font-size:1.1rem}
#tg-280-wrapper .tg-280-hero__title{font-size:1.6rem;font-weight:900;color:#fff!important;line-height:1.35;word-break:keep-all}
#tg-280-wrapper .tg-280-hero__subtitle{font-size:0.97rem;color:rgba(255,255,255,0.88)!important;word-break:keep-all;max-width:700px;margin-bottom:0!important}
#tg-280-wrapper .tg-280-hero__tags{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}
#tg-280-wrapper .tg-280-hero__tag{background:rgba(255,255,255,0.12)!important;color:rgba(255,255,255,0.92)!important;font-size:0.82rem;font-weight:600;padding:4px 13px;border-radius:20px;border:1px solid rgba(255,255,255,0.2)}

/* ══════ 메인 ══════ */
#tg-280-wrapper .tg-280-main{background:#fff;padding:48px 20px 40px;display:flex;flex-direction:column;gap:44px}

/* ══════ 도입부 ══════ */
#tg-280-wrapper .tg-280-intro{background:var(--slate-50)!important;border:1px solid var(--slate-200);border-radius:var(--border-r);padding:28px 24px;text-align:left}
#tg-280-wrapper .tg-280-intro__icon{margin-bottom:12px;font-size:2rem;color:var(--sky-500);text-align:center}
#tg-280-wrapper .tg-280-intro__heading{font-size:1.15rem;font-weight:800;color:var(--sky-600)!important;margin-bottom:14px;text-align:center}
#tg-280-wrapper .tg-280-intro p{font-size:0.97rem;color:var(--text-sub)!important;word-break:keep-all}
#tg-280-wrapper .tg-280-intro p strong{color:var(--sky-700)!important}

/* ══════ 섹션 공통 ══════ */
#tg-280-wrapper .tg-280-section__label{display:inline-flex;align-items:center;gap:7px;background:var(--sky-600)!important;color:#fff!important;font-size:0.78rem;font-weight:700;padding:4px 14px;border-radius:20px;margin-bottom:12px}
#tg-280-wrapper .tg-280-section__label--demo{background:var(--azure-600)!important}
#tg-280-wrapper .tg-280-section__label--tips{background:var(--amber-600)!important}
#tg-280-wrapper .tg-280-section__title{font-size:1.25rem;font-weight:900;color:var(--slate-800)!important;border-left:4px solid var(--sky-500);padding-left:14px;margin-bottom:18px;line-height:1.4;word-break:keep-all}
#tg-280-wrapper .tg-280-section p{font-size:0.97rem;color:var(--text-sub)!important;word-break:keep-all;text-align:left}
#tg-280-wrapper .tg-280-section p strong{color:var(--sky-700)!important;font-weight:700}

/* ══════ 기능 카드 ══════ */
#tg-280-wrapper .tg-280-feature-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:22px}
#tg-280-wrapper .tg-280-feature-card{position:relative;background:var(--slate-50)!important;border:1px solid var(--slate-200);border-radius:12px;padding:20px 16px 18px;display:flex;flex-direction:column;gap:8px;text-align:left;transition:transform 0.25s ease,box-shadow 0.25s ease}
#tg-280-wrapper .tg-280-feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-sky)}
#tg-280-wrapper .tg-280-feature-card__num{position:absolute;top:-8px;right:14px;width:26px;height:26px;background:var(--sky-600)!important;color:#fff!important;font-size:0.75rem;font-weight:900;border-radius:50%;display:inline-flex;align-items:center;justify-content:center}
#tg-280-wrapper .tg-280-feature-card__icon{font-size:1.5rem;color:var(--sky-500);margin-bottom:4px}
#tg-280-wrapper .tg-280-feature-card strong{font-size:0.95rem;font-weight:800;color:var(--slate-800)!important}
#tg-280-wrapper .tg-280-feature-card p{font-size:0.88rem;color:var(--text-sub)!important;margin-bottom:0!important}
#tg-280-wrapper .tg-280-feature-card p strong{color:var(--sky-600)!important}

/* ══════ 배경 체험 시뮬 ══════ */
#tg-280-wrapper .tg-280-wallpaper-sim{margin-top:20px;display:flex;flex-direction:column;align-items:center;gap:16px}

/* 채팅 미리보기 */
#tg-280-wrapper .tg-280-wallpaper-sim__chat{position:relative;width:260px;aspect-ratio:9/16;max-height:420px;border-radius:18px;overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,0.18)}
#tg-280-wrapper .tg-280-wallpaper-sim__chat-bg{position:absolute;inset:0;transition:background 0.5s ease}
#tg-280-wrapper .tg-280-wallpaper-sim__blur-overlay{position:absolute;inset:0;backdrop-filter:blur(0);-webkit-backdrop-filter:blur(0);transition:backdrop-filter 0.4s ease,-webkit-backdrop-filter 0.4s ease;pointer-events:none;z-index:1}
#tg-280-wrapper .tg-280-wallpaper-sim__blur-overlay.is-blur{backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}

/* 채팅 헤더 */
#tg-280-wrapper .tg-280-wallpaper-sim__header{position:relative;z-index:2;display:flex;align-items:center;gap:8px;padding:10px 14px;background:rgba(255,255,255,0.92)!important;border-bottom:1px solid rgba(0,0,0,0.08)}
#tg-280-wrapper .tg-280-wallpaper-sim__header-avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,#38bdf8,#0ea5e9)!important;display:flex;align-items:center;justify-content:center;font-size:0.9rem;flex-shrink:0}
#tg-280-wrapper .tg-280-wallpaper-sim__header strong{font-size:0.72rem;font-weight:800;color:var(--slate-800)!important;display:block}
#tg-280-wrapper .tg-280-wallpaper-sim__header span{font-size:0.55rem;font-weight:600;color:var(--sky-500)!important}

/* 메시지 */
#tg-280-wrapper .tg-280-wallpaper-sim__messages{position:relative;z-index:2;padding:12px 10px;display:flex;flex-direction:column;gap:6px}
#tg-280-wrapper .tg-280-wallpaper-sim__msg{max-width:85%;padding:7px 10px;border-radius:10px;font-size:0.62rem;line-height:1.45}
#tg-280-wrapper .tg-280-wallpaper-sim__msg p{font-size:0.62rem;margin-bottom:2px!important;line-height:1.45!important}
#tg-280-wrapper .tg-280-wallpaper-sim__msg span{font-size:0.45rem;color:rgba(0,0,0,0.35)!important;display:block;text-align:right;margin-top:1px}
#tg-280-wrapper .tg-280-wallpaper-sim__msg--other{align-self:flex-start;background:rgba(255,255,255,0.92)!important;color:var(--slate-800)!important;border-bottom-left-radius:3px}
#tg-280-wrapper .tg-280-wallpaper-sim__msg--mine{align-self:flex-end;background:linear-gradient(135deg,#e0f2fe,#bae6fd)!important;color:var(--slate-800)!important;border-bottom-right-radius:3px}

/* 프리미엄 배지 */
#tg-280-wrapper .tg-280-wallpaper-sim__premium-tag{display:none;position:absolute;bottom:10px;left:50%;transform:translateX(-50%);z-index:3;background:rgba(139,92,246,0.9)!important;color:#fff!important;font-size:0.55rem;font-weight:700;padding:4px 10px;border-radius:12px;white-space:nowrap;animation:tg280-fadeIn 0.4s ease}
#tg-280-wrapper .tg-280-wallpaper-sim__premium-tag.is-visible{display:flex;align-items:center;gap:4px}
@keyframes tg280-fadeIn{from{opacity:0;transform:translateX(-50%) translateY(6px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}

/* 컨트롤 패널 */
#tg-280-wrapper .tg-280-wallpaper-sim__controls{width:100%;max-width:380px;display:flex;flex-direction:column;gap:10px}
#tg-280-wrapper .tg-280-wallpaper-sim__ctrl-group{background:var(--slate-50)!important;border:1px solid var(--slate-200);border-radius:12px;padding:14px 16px}
#tg-280-wrapper .tg-280-wallpaper-sim__ctrl-title{display:flex;align-items:center;gap:6px;font-size:0.82rem;font-weight:700;color:var(--text-sub)!important;margin-bottom:10px}
#tg-280-wrapper .tg-280-wallpaper-sim__ctrl-title i{color:var(--sky-500)}

/* 배경 버튼 그리드 */
#tg-280-wrapper .tg-280-wallpaper-sim__bg-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}
#tg-280-wrapper .tg-280-wallpaper-sim__bg-btn{width:100%;aspect-ratio:1;border-radius:10px;cursor:pointer;transition:transform 0.2s,box-shadow 0.2s;border:3px solid transparent!important;font-family:inherit}
#tg-280-wrapper .tg-280-wallpaper-sim__bg-btn:hover{transform:scale(1.08)}
#tg-280-wrapper .tg-280-wallpaper-sim__bg-btn--active{border-color:#fff!important;box-shadow:0 0 0 2px var(--sky-500),0 2px 8px rgba(14,165,233,0.3)}
/* 각 배경 색상 */
#tg-280-wrapper .tg-280-wallpaper-sim__bg-btn[data-tg280-bg="sky"]{background:linear-gradient(135deg,#e0f2fe,#bae6fd)!important}
#tg-280-wrapper .tg-280-wallpaper-sim__bg-btn[data-tg280-bg="sunset"]{background:linear-gradient(135deg,#fef3c7,#fde68a,#fbbf24)!important}
#tg-280-wrapper .tg-280-wallpaper-sim__bg-btn[data-tg280-bg="forest"]{background:linear-gradient(135deg,#d1fae5,#a7f3d0,#6ee7b7)!important}
#tg-280-wrapper .tg-280-wallpaper-sim__bg-btn[data-tg280-bg="dark"]{background:linear-gradient(135deg,#1e293b,#334155)!important}
#tg-280-wrapper .tg-280-wallpaper-sim__bg-btn[data-tg280-bg="red"]{background:linear-gradient(135deg,#fee2e2,#fca5a5,#f87171)!important}
#tg-280-wrapper .tg-280-wallpaper-sim__bg-btn[data-tg280-bg="pattern"]{background:linear-gradient(135deg,#e0e7ff,#c7d2fe)!important}

/* 스위치 토글 */
#tg-280-wrapper .tg-280-wallpaper-sim__toggle-row{display:flex;align-items:center;justify-content:space-between;font-size:0.82rem;font-weight:700;color:var(--text-sub)!important}
#tg-280-wrapper .tg-280-wallpaper-sim__toggle-row span{display:flex;align-items:center;gap:6px}
#tg-280-wrapper .tg-280-wallpaper-sim__toggle-row span i{color:var(--sky-500);width:16px;text-align:center}
#tg-280-wrapper .tg-280-wallpaper-sim__toggle-row small{font-size:0.6rem;color:var(--slate-400)!important;font-weight:600}
#tg-280-wrapper .tg-280-wallpaper-sim__switch{width:42px;height:24px;background:var(--slate-300)!important;border-radius:12px;position:relative;cursor:pointer;transition:background 0.3s ease;font-family:inherit;padding:0}
#tg-280-wrapper .tg-280-wallpaper-sim__switch.is-on{background:var(--sky-500)!important}
#tg-280-wrapper .tg-280-wallpaper-sim__switch-knob{position:absolute;top:2px;left:2px;width:20px;height:20px;background:#fff!important;border-radius:50%;transition:left 0.3s ease;box-shadow:0 1px 3px rgba(0,0,0,0.2)}
#tg-280-wrapper .tg-280-wallpaper-sim__switch.is-on .tg-280-wallpaper-sim__switch-knob{left:20px}

/* 설정 요약 */
#tg-280-wrapper .tg-280-wallpaper-sim__summary{display:flex;align-items:center;gap:8px;background:linear-gradient(135deg,#e0f2fe,#bae6fd)!important;border:1px solid #7dd3fc;border-radius:10px;padding:10px 14px;font-size:0.78rem;font-weight:600;color:var(--sky-700)!important}
#tg-280-wrapper .tg-280-wallpaper-sim__summary i{color:var(--sky-500);flex-shrink:0}
#tg-280-wrapper .tg-280-wallpaper-sim__summary strong{color:var(--sky-700)!important}

/* ══════ 탭 전환 ══════ */
#tg-280-wrapper .tg-280-tab-group{display:flex;gap:0;margin-top:22px;border-radius:12px 12px 0 0;overflow:hidden;border:1px solid var(--slate-200);border-bottom:none}
#tg-280-wrapper .tg-280-tab-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:14px 12px;background:var(--slate-100)!important;color:var(--text-sub)!important;font-family:inherit;font-size:0.88rem;font-weight:700;cursor:pointer;transition:background 0.25s ease;border-right:1px solid var(--slate-200)}
#tg-280-wrapper .tg-280-tab-btn:last-child{border-right:none}
#tg-280-wrapper .tg-280-tab-btn:hover{background:var(--slate-200)!important}
#tg-280-wrapper .tg-280-tab-btn--active{background:var(--sky-600)!important;color:#fff!important}
#tg-280-wrapper .tg-280-tab-btn i{font-size:1.1rem}
#tg-280-wrapper .tg-280-tab-panel{display:none;background:var(--slate-50)!important;border:1px solid var(--slate-200);border-top:3px solid var(--sky-500);border-radius:0 0 var(--border-r) var(--border-r);padding:22px 20px;text-align:left;animation:tg280-fadeIn 0.35s ease}
#tg-280-wrapper .tg-280-tab-panel--active{display:block}
#tg-280-wrapper .tg-280-tab-panel__header{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px}
#tg-280-wrapper .tg-280-tab-panel__icon-wrap{display:flex;align-items:center;justify-content:center;width:50px;height:50px;border-radius:12px;flex-shrink:0;font-size:1.6rem;color:#fff!important}
#tg-280-wrapper .tg-280-tab-panel__icon-wrap--ios{background:linear-gradient(135deg,#64748b,#334155)!important}
#tg-280-wrapper .tg-280-tab-panel__icon-wrap--android{background:linear-gradient(135deg,#22c55e,#15803d)!important}
#tg-280-wrapper .tg-280-tab-panel__icon-wrap--pc{background:linear-gradient(135deg,#2283dd,#005bb5)!important}
#tg-280-wrapper .tg-280-tab-panel__title{font-size:1.05rem;font-weight:800;color:var(--slate-800)!important;margin-bottom:4px}
#tg-280-wrapper .tg-280-tab-panel__desc{font-size:0.88rem;color:var(--text-sub)!important;margin-bottom:0!important}

/* ══════ 단계 ══════ */
#tg-280-wrapper .tg-280-steps{counter-reset:step280;display:flex;flex-direction:column;gap:9px;margin-bottom:14px;text-align:left}
#tg-280-wrapper .tg-280-steps__item{counter-increment:step280;position:relative;padding-left:32px;font-size:0.9rem;color:var(--text-sub)!important;line-height:1.55}
#tg-280-wrapper .tg-280-steps__item::before{content:counter(step280);position:absolute;left:0;top:2px;width:22px;height:22px;background:var(--sky-600)!important;color:#fff!important;font-size:0.7rem;font-weight:900;border-radius:50%;display:inline-flex;align-items:center;justify-content:center}
#tg-280-wrapper .tg-280-steps__item strong{color:var(--sky-700)!important;font-weight:700}
#tg-280-wrapper .tg-280-key-action{background:linear-gradient(135deg,#e0f2fe,#bae6fd)!important;border:1px solid #7dd3fc;border-radius:10px;padding:12px 16px;font-size:0.88rem;color:var(--text-main)!important;display:flex;align-items:center;gap:8px;text-align:left}
#tg-280-wrapper .tg-280-key-action>i{color:var(--sky-600)!important;flex-shrink:0}
#tg-280-wrapper .tg-280-key-action strong{color:var(--sky-800)!important;font-weight:800;margin-right:4px}

/* ══════ 아코디언 ══════ */
#tg-280-wrapper .tg-280-accordion{display:flex;flex-direction:column;gap:12px;margin-top:20px}
#tg-280-wrapper .tg-280-accordion__item{background:var(--slate-50)!important;border:1px solid var(--slate-200);border-radius:var(--border-r);overflow:hidden;transition:border-color 0.3s ease,box-shadow 0.3s ease}
#tg-280-wrapper .tg-280-accordion__item.is-open{border-color:var(--sky-400);box-shadow:var(--shadow-sky)}
#tg-280-wrapper .tg-280-accordion__header{display:flex;align-items:center;gap:10px;padding:16px 18px;width:100%;background:none!important;cursor:pointer;font-family:inherit;text-align:left}
#tg-280-wrapper .tg-280-accordion__icon{display:flex;align-items:center;justify-content:center;width:38px;height:38px;background:linear-gradient(135deg,#e0f2fe,#bae6fd)!important;border-radius:10px;font-size:1.1rem;color:var(--sky-600)!important;flex-shrink:0}
#tg-280-wrapper .tg-280-accordion__title{flex:1;font-size:0.95rem;font-weight:800;color:var(--slate-800)!important}
#tg-280-wrapper .tg-280-accordion__arrow{color:var(--slate-400)!important;font-size:0.8rem;transition:transform 0.3s ease;flex-shrink:0}
#tg-280-wrapper .tg-280-accordion__item.is-open .tg-280-accordion__arrow{transform:rotate(180deg)}
#tg-280-wrapper .tg-280-accordion__body{max-height:0;overflow:hidden;transition:max-height 0.45s ease,padding 0.45s ease;padding:0 18px;text-align:left}
#tg-280-wrapper .tg-280-accordion__item.is-open .tg-280-accordion__body{max-height:600px;padding:0 18px 20px}
#tg-280-wrapper .tg-280-accordion__body p{font-size:0.9rem;color:var(--text-sub)!important}
#tg-280-wrapper .tg-280-accordion__body p strong{color:var(--sky-600)!important}

/* ══════ 결론 ══════ */
#tg-280-wrapper .tg-280-summary{background:linear-gradient(150deg,var(--slate-900) 0%,#0c4a6e 100%)!important;border-radius:var(--border-r);padding:44px 24px;text-align:center}
#tg-280-wrapper .tg-280-summary__title{font-size:1.3rem;font-weight:900;color:#fff!important;margin-bottom:30px;display:flex;align-items:center;justify-content:center;gap:10px}
#tg-280-wrapper .tg-280-summary__flow{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;margin-bottom:36px}
#tg-280-wrapper .tg-280-summary__flow-item{display:flex;flex-direction:column;align-items:center;gap:8px}
#tg-280-wrapper .tg-280-summary__flow-icon{display:flex;align-items:center;justify-content:center;width:52px;height:52px;background:rgba(255,255,255,0.1)!important;border:2px solid rgba(255,255,255,0.18);border-radius:12px;font-size:1.3rem;color:#fff!important}
#tg-280-wrapper .tg-280-summary__flow-item span{font-size:0.72rem;font-weight:600;color:var(--slate-300)!important;max-width:80px;text-align:center;line-height:1.3}
#tg-280-wrapper .tg-280-summary__flow-arrow{color:rgba(255,255,255,0.3)!important;font-size:0.9rem}
#tg-280-wrapper .tg-280-summary__checklist{text-align:left;max-width:640px;margin:0 auto 28px;display:flex;flex-direction:column;gap:10px}
#tg-280-wrapper .tg-280-summary__checklist li{font-size:0.93rem;color:var(--slate-300)!important;display:flex;align-items:flex-start;gap:8px;line-height:1.6}
#tg-280-wrapper .tg-280-summary__checklist li i{color:var(--sky-400)!important;flex-shrink:0;margin-top:4px}
#tg-280-wrapper .tg-280-summary__checklist li strong{color:#fff!important;font-weight:700}
#tg-280-wrapper .tg-280-summary__desc{font-size:0.92rem;color:var(--slate-300)!important;word-break:keep-all;max-width:700px;margin:0 auto!important}
#tg-280-wrapper .tg-280-summary__desc strong{color:#fff!important}
#tg-280-wrapper .tg-280-footer{margin-top:28px}
#tg-280-wrapper .tg-280-footer__btn{display:inline-flex;align-items:center;gap:8px;background:#fff!important;color:var(--sky-700)!important;font-size:0.92rem;font-weight:800;padding:13px 30px;border-radius:30px;box-shadow:0 4px 16px rgba(0,0,0,0.2);transition:transform 0.22s ease,box-shadow 0.22s ease}
#tg-280-wrapper .tg-280-footer__btn:hover{transform:scale(1.05);box-shadow:0 6px 22px rgba(0,0,0,0.25)}

/* ══════ 스크롤 등장 ══════ */
#tg-280-wrapper .tg-280-motion{opacity:0;transform:translateY(26px);transition:opacity 0.65s ease-out,transform 0.65s ease-out}
#tg-280-wrapper .tg-280-motion.is-visible{opacity:1;transform:translateY(0)}

/* ══════ 반응형 ══════ */
@media(min-width:640px){
    #tg-280-wrapper .tg-280-hero{padding:64px 40px 60px}
    #tg-280-wrapper .tg-280-hero__title{font-size:2rem}
    #tg-280-wrapper .tg-280-main{padding:56px 40px 48px;gap:52px}
    #tg-280-wrapper .tg-280-feature-grid{grid-template-columns:repeat(3,1fr)}
    #tg-280-wrapper .tg-280-wallpaper-sim{flex-direction:row;align-items:flex-start;gap:24px}
    #tg-280-wrapper .tg-280-wallpaper-sim__controls{flex:1}
    #tg-280-wrapper .tg-280-summary{padding:56px 40px}
    #tg-280-wrapper .tg-280-tab-panel__header{align-items:center}
}
@media(min-width:900px){
    #tg-280-wrapper .tg-280-hero__title{font-size:2.3rem}
    #tg-280-wrapper .tg-280-section__title{font-size:1.4rem}
}
