:root {
            --blue: #1E63E9;
            --blue-dark: #154DB8;
            --blue-soft: #EEF4FF;
            --ink: #111827;
            --muted: #667085;
            --line: #E7ECF4;
            --cream: #FAF7F2
        }

        * {
            box-sizing: border-box
        }

        html {
            scroll-behavior: smooth
        }

        /* 앵커 이동 시: 고정된 topbar(헤더+배너=120px)만큼 오프셋 → 위/아래 여백이 동일 */
        section[id] {
            scroll-margin-top: 120px
        }

        body {
            margin: 0;
            font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            color: var(--ink);
            background: #fff;
            line-height: 1.6;
            word-break: keep-all
        }

        a {
            text-decoration: none;
            color: inherit
        }

        .site-width {
            width: min(100% - 48px, 1420px);
            margin: auto
        }

        /* 배너 + 헤더를 상단에 함께 고정 */
        .topbar {
            position: sticky;
            top: 0;
            z-index: 60
        }

        header {
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(231, 236, 244, .9)
        }

        .nav {
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 850;
            font-size: 22px
        }

        .brand img {
            width: 35px;
            height: 35px;
            object-fit: contain
        }

        .links {
            display: flex;
            gap: 42px;
            font-size: 15px;
            font-weight: 700;
            color: #333d50
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 23px;
            border: none;
            border-radius: 12px;
            background: var(--blue);
            color: #fff;
            font-family: inherit;
            font-weight: 850;
            cursor: pointer;
            box-shadow: 0 10px 24px rgba(30, 99, 233, .2);
            transition: .24s
        }

        .btn:hover {
            transform: translateY(-2px);
            background: var(--blue-dark)
        }

        /* ===== HERO (풀블리드 유지) ===== */
        .hero {
            position: relative;
            min-height: 720px;
            overflow: hidden;
            background: #fff;
            border-bottom: 1px solid #eef2f7;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('assets/hero_background.webp');
            background-repeat: no-repeat;
            background-size: cover;
            background-position: 62% center;
        }

        .hero-bg::before,
        .hero-bg::after {
            display: none;
        }

        .hero-inner {
            position: relative;
            z-index: 3;
            min-height: 650px;
            display: flex;
            align-items: center;
            padding-right: min(30vw, 380px)
        }

        .hero-copy {
            width: 46%;
            padding: 72px 0 70px clamp(24px, 5vw, 92px)
        }

        .hero-kicker {
            font-size: 16px;
            font-weight: 850;
            color: var(--blue);
            margin-bottom: 18px
        }

        .hero h1 {
            font-size: clamp(54px, 4.9vw, 74px);
            line-height: 1.08;
            letter-spacing: -.055em;
            margin: 0 0 26px
        }

        .hero h1 em {
            font-style: normal;
            color: var(--blue)
        }

        .hero-copy p {
            font-size: 18px;
            line-height: 1.82;
            color: #566174;
            max-width: 590px;
            margin: 0 0 30px
        }

        .hero-actions {
            display: flex;
            gap: 18px;
            align-items: center;
            flex-wrap: wrap
        }

        .hero-link {
            font-weight: 800;
            color: #3a4455
        }

        .hero-email {
            margin-top: 14px;
            color: #98A2B3;
            font-size: 14px
        }

        .hero-live {
            position: absolute;
            z-index: 5;
            right: 4.3%;
            top: 50%;
            transform: translateY(-50%);
            width: min(340px, 23vw);
            pointer-events: none
        }

        .live-room {
            background: rgba(255, 255, 255, .93);
            border: 1px solid rgba(255, 255, 255, .9);
            border-radius: 18px;
            padding: 12px 15px;
            margin-bottom: 13px;
            box-shadow: 0 14px 32px rgba(40, 58, 92, .14);
            font-size: 13px;
            font-weight: 850;
            display: flex;
            justify-content: space-between;
            align-items: center
        }

        .live-room span:last-child {
            color: #23b26d
        }

        .chat-card {
            background: rgba(255, 255, 255, .96);
            border-radius: 17px;
            padding: 13px 14px;
            margin: 12px 0;
            box-shadow: 0 14px 32px rgba(40, 58, 92, .14);
            opacity: 0;
            transform: translateY(22px);
            animation: rise 10s infinite
        }

        .chat-card:nth-child(2) {
            animation-delay: .7s
        }

        .chat-card:nth-child(3) {
            animation-delay: 2s
        }

        .chat-card:nth-child(4) {
            animation-delay: 3.3s
        }

        .chat-card:nth-child(5) {
            animation-delay: 4.6s
        }

        .chat-card.me {
            border: 2px solid rgba(30, 99, 233, .7);
            background: #f8fbff
        }

        .chat-top {
            display: flex;
            align-items: center;
            gap: 9px
        }

        .avatar {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: grid;
            place-items: center;
            color: #fff;
            font-weight: 850;
            font-size: 12px;
            flex: 0 0 auto
        }

        .a1 {
            background: #7c3aed
        }

        .a2 {
            background: #0ea5e9
        }

        .a3 {
            background: #f97316
        }

        .a4 {
            background: #1e63e9
        }

        .name {
            font-weight: 800;
            font-size: 13px;
            flex: 1
        }

        .time {
            font-size: 11px;
            color: #98a2b3
        }

        .msg {
            padding-left: 37px;
            font-size: 14px;
            line-height: 1.45;
            color: #273142;
            margin-top: 5px
        }

        @keyframes rise {

            0%,
            8% {
                opacity: 0;
                transform: translateY(22px)
            }

            14%,
            76% {
                opacity: 1;
                transform: translateY(0)
            }

            88%,
            100% {
                opacity: 0;
                transform: translateY(-10px)
            }
        }

        /* 모바일: 한 자리에서 메시지를 하나씩 순서대로 보여주는 순환 애니메이션 */
        @keyframes cycle {
            0% {
                opacity: 0;
                transform: translateY(12px)
            }

            4%,
            21% {
                opacity: 1;
                transform: translateY(0)
            }

            25%,
            100% {
                opacity: 0;
                transform: translateY(-8px)
            }
        }

        /* ===== 넓은 여백 섹션 (히어로 아래) ===== */
        section:not(.hero) {
            padding: 104px 0
        }

        /* 히어로 아래 콘텐츠는 데스크톱에서 좌우 여백을 넉넉하게 (헤더는 그대로 넓게, 모바일은 기존대로) */
        @media(min-width:1101px) {
            section:not(.hero) .site-width {
                width: min(100% - 96px, 1200px)
            }
        }

        .section-kicker {
            color: var(--blue);
            font-weight: 800;
            margin-bottom: 12px
        }

        .section-title {
            font-size: clamp(34px, 4vw, 54px);
            line-height: 1.2;
            letter-spacing: -.04em;
            margin: 0 0 18px
        }

        .section-desc {
            font-size: 18px;
            color: var(--muted);
            max-width: 720px
        }

        /* 문제(왜 루잉크인가요) */
        .problem {
            background: var(--cream)
        }

        .problem-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 72px;
            align-items: center
        }

        .image-frame {
            background: #fff;
            border-radius: 30px;
            padding: 16px;
            box-shadow: 0 22px 50px rgba(52, 45, 37, .1)
        }

        .image-frame img {
            display: block;
            width: 100%;
            height: auto;
            border-radius: 20px
        }

        .problem-copy h2 {
            font-size: 44px;
            line-height: 1.3;
            letter-spacing: -.04em;
            margin: 0 0 28px
        }

        .problem-list {
            display: grid;
            gap: 20px
        }

        .problem-item {
            display: grid;
            grid-template-columns: 46px 1fr;
            gap: 14px;
            align-items: start
        }

        .icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: #fff;
            color: var(--blue);
            display: grid;
            place-items: center;
            font-weight: 900;
            box-shadow: 0 8px 22px rgba(66, 75, 91, .08)
        }

        .problem-item strong {
            display: block;
            font-size: 18px;
            margin-bottom: 3px
        }

        .problem-item p {
            margin: 0;
            color: var(--muted)
        }

        /* 이용 방법 */
        .how {
            text-align: center
        }

        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            margin-top: 50px
        }

        .step {
            padding: 30px 24px;
            border: 1px solid var(--line);
            border-radius: 24px;
            text-align: left;
            background: #fff;
            transition: .25s
        }

        .step:hover {
            transform: translateY(-6px);
            box-shadow: 0 18px 40px rgba(30, 99, 233, .1)
        }

        .step-no {
            width: 34px;
            height: 34px;
            border-radius: 11px;
            background: var(--blue);
            color: #fff;
            display: grid;
            place-items: center;
            font-weight: 850;
            margin-bottom: 22px
        }

        .step h3 {
            margin: 0 0 8px;
            font-size: 20px
        }

        .step p {
            margin: 0;
            color: var(--muted)
        }

        /* 영어방 */
        .live-section {
            background: linear-gradient(180deg, #F5F8FF, #fff)
        }

        .live-grid {
            display: grid;
            grid-template-columns: .78fr 1.22fr;
            gap: 62px;
            align-items: center
        }

        .group-image img {
            display: block;
            width: 100%;
            height: auto;
            border-radius: 28px;
            box-shadow: 0 24px 60px rgba(30, 99, 233, .13)
        }

        /* 예시 스터디 칩 */
        .example-channels {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px
        }

        .ex-chip {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 9px 15px;
            font-size: 14px;
            font-weight: 700;
            color: #3a4455;
            box-shadow: 0 4px 14px rgba(52, 70, 105, .05)
        }

        /* 프로덕트 */
        .product-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 46px
        }

        .phone-card {
            border-radius: 30px;
            background: #F8FAFD;
            padding: 28px;
            min-height: 580px;
            overflow: hidden
        }

        .phone-card h3 {
            font-size: 26px;
            margin: 0 0 8px
        }

        .phone-card p {
            margin: 0 0 24px;
            color: var(--muted)
        }

        .phone-card img {
            display: block;
            width: min(360px, 100%);
            height: auto;
            margin: 0 auto;
            border-radius: 28px;
            box-shadow: 0 20px 50px rgba(13, 24, 43, .15)
        }

        /* 기능 쇼케이스 (폰 미리보기) */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 26px;
            margin-top: 46px
        }

        .feat-card {
            display: flex;
            flex-direction: column;
            background: #F8FAFD;
            border: 1px solid var(--line);
            border-radius: 28px;
            overflow: hidden;
            transition: .25s
        }

        .feat-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 22px 50px rgba(30, 99, 233, .1)
        }

        .feat-body {
            order: 1;
            padding: 32px 32px 22px
        }

        .feat-body h3 {
            margin: 0 0 8px;
            font-size: 22px
        }

        .feat-body p {
            margin: 0;
            color: var(--muted);
            line-height: 1.6
        }

        .feat-shot {
            order: 2;
            height: 300px;
            overflow: hidden;
            display: flex;
            justify-content: center;
            padding: 26px 26px 0;
            background: linear-gradient(180deg, #EAF1FF, #F8FAFD)
        }

        /* 스타일화된 UI 목업 (실제 캡쳐 대체) */
        .mock {
            width: 100%;
            max-width: 340px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 22px 22px 0 0;
            box-shadow: 0 10px 34px rgba(18, 33, 58, .14);
            padding: 20px 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 13px
        }

        .mock-center {
            align-items: center;
            text-align: center;
            gap: 12px
        }

        /* 1. 라이브 스터디 */
        .mock-live {
            display: flex;
            align-items: center;
            justify-content: space-between
        }

        .ml-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-weight: 850;
            font-size: 13px;
            color: var(--ink)
        }

        .ml-badge i {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #ef4444;
            box-shadow: 0 0 0 4px rgba(239, 68, 68, .16)
        }

        .ml-time {
            font-weight: 850;
            font-size: 14px;
            color: var(--blue);
            font-variant-numeric: tabular-nums
        }

        .mock-progress {
            height: 6px;
            border-radius: 6px;
            background: #E4ECFB;
            overflow: hidden
        }

        .mock-progress span {
            display: block;
            height: 100%;
            border-radius: 6px;
            background: linear-gradient(90deg, var(--blue), #5b8def)
        }

        .mock-people {
            font-size: 13px;
            color: var(--muted)
        }

        .mock-people strong {
            color: var(--ink)
        }

        .mock-avatars {
            display: flex;
            align-items: center;
            gap: 6px
        }

        .mock-avatars .avatar {
            border: 2px solid #fff;
            margin-left: -10px
        }

        .mock-avatars .avatar:first-child {
            margin-left: 0
        }

        .mock-more {
            font-size: 12px;
            font-weight: 800;
            color: var(--muted);
            margin-left: 2px
        }

        .mock-q {
            background: #F5F8FF;
            border: 1px solid #DCE6FA;
            border-radius: 14px;
            padding: 12px 13px
        }

        .mock-q-label {
            font-size: 11px;
            font-weight: 800;
            color: var(--blue);
            margin-bottom: 5px
        }

        .mock-q-text {
            font-size: 13.5px;
            font-weight: 700;
            line-height: 1.45;
            color: #273142
        }

        /* 2. 리포트 (세션 보고서) */
        .rep-chip {
            align-self: flex-start;
            font-size: 12px;
            font-weight: 800;
            color: #475467;
            background: #F1F4F9;
            border-radius: 999px;
            padding: 6px 11px
        }

        .rep-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
            padding-bottom: 13px;
            border-bottom: 1px solid var(--line)
        }

        .rep-stats div {
            display: flex;
            flex-direction: column;
            gap: 2px
        }

        .rep-stats b {
            font-size: 18px;
            font-weight: 900;
            color: var(--ink)
        }

        .rep-stats span {
            font-size: 11px;
            color: var(--muted)
        }

        .rep-list {
            display: flex;
            flex-direction: column;
            gap: 12px
        }

        .rep-row {
            display: flex;
            align-items: center;
            gap: 10px
        }

        .rep-name {
            font-size: 14px;
            font-weight: 800;
            color: #273142;
            flex: 1
        }

        .rep-score {
            font-size: 14px;
            font-weight: 850;
            color: var(--blue)
        }

        .a5 {
            background: #12b886
        }

        /* 3. 커뮤니티 */
        .mock-msg {
            display: flex;
            align-items: flex-end;
            gap: 8px
        }

        .mock-msg.me {
            justify-content: flex-end
        }

        .bubble {
            max-width: 78%;
            padding: 9px 13px;
            border-radius: 4px 15px 15px 15px;
            background: #F1F4F9;
            font-size: 13.5px;
            line-height: 1.4;
            color: #273142
        }

        .bubble-me {
            border-radius: 15px 4px 15px 15px;
            background: var(--blue);
            color: #fff
        }

        .mock-react {
            display: flex;
            gap: 7px;
            padding-left: 36px
        }

        .react {
            font-size: 12px;
            font-weight: 700;
            padding: 4px 9px;
            border-radius: 999px;
            background: #F1F4F9;
            color: #475467
        }

        /* 4. 일정 */
        .mock-streak {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--muted)
        }

        .mock-streak strong {
            color: var(--ink)
        }

        .streak-fire {
            font-size: 16px
        }

        .sched-tabs {
            margin-left: auto;
            display: flex;
            gap: 2px;
            background: #F1F4F9;
            border-radius: 999px;
            padding: 3px
        }

        .sched-tabs span {
            font-size: 11px;
            font-weight: 800;
            color: var(--muted);
            padding: 3px 9px;
            border-radius: 999px
        }

        .sched-tabs span.on {
            background: #fff;
            color: var(--blue);
            box-shadow: 0 1px 3px rgba(16, 24, 40, .12)
        }

        .mock-week {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 6px
        }

        .day {
            aspect-ratio: 1;
            border-radius: 11px;
            display: grid;
            place-items: center;
            font-size: 12px;
            font-weight: 800;
            color: #98a2b3;
            background: #F1F4F9
        }

        .day.done {
            background: var(--blue-soft);
            color: var(--blue)
        }

        .day.today {
            background: var(--blue);
            color: #fff;
            box-shadow: 0 6px 14px rgba(30, 99, 233, .3)
        }

        .mock-agenda {
            display: flex;
            flex-direction: column;
            gap: 8px
        }

        .ag-item {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 13px;
            font-weight: 700;
            color: #273142;
            background: #F8FAFD;
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 10px 12px
        }

        .ag-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--blue);
            flex: 0 0 auto
        }

        .ag-item.done {
            color: var(--muted)
        }

        .ag-item.done .ag-dot {
            background: #23b26d
        }

        .ag-check {
            margin-left: auto;
            color: #23b26d;
            font-weight: 900
        }

        .ag-item.next {
            border-color: #DCE6FA;
            background: #F5F8FF
        }

        /* 후기 */
        .testimonials {
            text-align: center
        }

        .quotes {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 46px;
            text-align: left
        }

        .quote {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 24px;
            padding: 28px;
            box-shadow: 0 12px 34px rgba(52, 70, 105, .06)
        }

        .quote p {
            margin: 0 0 14px;
            font-size: 17px;
            line-height: 1.6
        }

        .quote span {
            color: #7b8798;
            font-size: 14px
        }

        /* 가치 카드 (WHY LUINK) */
        .value-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 24px;
            padding: 32px 28px;
            box-shadow: 0 12px 34px rgba(52, 70, 105, .06);
            transition: .25s
        }

        .value-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 20px 44px rgba(30, 99, 233, .1)
        }

        .value-ic {
            width: 54px;
            height: 54px;
            border-radius: 16px;
            background: var(--blue-soft);
            display: grid;
            place-items: center;
            font-size: 26px;
            margin-bottom: 20px
        }

        .value-card h3 {
            margin: 0 0 10px;
            font-size: 20px
        }

        .value-card p {
            margin: 0;
            color: var(--muted);
            line-height: 1.6
        }

        /* FAQ */
        .faq {
            background: var(--cream)
        }

        .faq-list {
            max-width: 760px;
            margin: 46px auto 0;
            display: grid;
            gap: 14px
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 18px;
            padding: 0 26px;
            box-shadow: 0 8px 24px rgba(52, 70, 105, .04)
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            font-weight: 800;
            font-size: 18px;
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px
        }

        .faq-item summary::-webkit-details-marker {
            display: none
        }

        .faq-item summary::after {
            content: "+";
            flex: 0 0 auto;
            color: var(--blue);
            font-size: 26px;
            font-weight: 400;
            line-height: 1;
            transition: transform .2s
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg)
        }

        .faq-item p {
            margin: 0 0 22px;
            color: var(--muted);
            line-height: 1.7
        }

        .faq-tag {
            display: inline-block;
            margin-left: 6px;
            background: var(--blue-soft);
            color: var(--blue);
            font-size: 12px;
            font-weight: 800;
            padding: 3px 9px;
            border-radius: 999px;
            vertical-align: middle;
            white-space: nowrap
        }

        /* CTA */
        .cta-box {
            background: linear-gradient(135deg, #1E63E9, #174EB8);
            color: #fff;
            border-radius: 34px;
            padding: 58px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 30px;
            box-shadow: 0 28px 70px rgba(30, 99, 233, .25)
        }

        .cta-box h2 {
            font-size: 40px;
            line-height: 1.25;
            margin: 0 0 10px
        }

        .cta-box p {
            margin: 0;
            color: #DCE8FF
        }

        .cta-box .btn {
            background: #fff;
            color: var(--blue);
            box-shadow: none;
            white-space: nowrap
        }

        .nav>.btn,
        .hero-actions .btn,
        .cta-box .btn,
        .hero-link {
            -webkit-tap-highlight-color: transparent
        }

        footer {
            padding: 42px 0 60px;
            color: #8792a3
        }

        .foot {
            display: flex;
            justify-content: space-between;
            align-items: center
        }

        .foot-brand {
            display: flex;
            align-items: center;
            gap: 9px;
            color: #263142;
            font-weight: 850
        }

        .foot-brand img {
            width: 28px;
            height: 28px
        }

        .reveal {
            opacity: 0;
            transform: translateY(22px);
            transition: .7s ease
        }

        .reveal.on {
            opacity: 1;
            transform: none
        }

        @media(max-width:1100px) {
            .site-width {
                width: min(100% - 36px, 1100px)
            }

            .hero-bg {
                background-size: cover;
                background-position: 58% center
            }

            .hero-inner {
                padding-right: 300px
            }

            .hero-live {
                right: 2%;
                width: 280px
            }

            .hero h1 {
                font-size: 58px
            }

            .links {
                gap: 24px
            }

            .problem-grid,
            .live-grid {
                gap: 48px
            }
        }

        @media(max-width:900px) {
            .site-width {
                width: min(100% - 28px, 900px)
            }

            /* 모바일: topbar 고정 해제(스크롤되게) + 앵커 오프셋 축소 */
            .topbar {
                position: static
            }

            section[id] {
                scroll-margin-top: 20px
            }

            .nav {
                height: auto;
                padding: 14px 0;
                gap: 14px;
                align-items: flex-start;
                flex-wrap: wrap
            }

            .links {
                display: none
            }

            .nav>.btn {
                display: none
            }

            .hero {
                min-height: 700px;
                padding-bottom: 0;
                display: block
            }

            .hero-inner {
                min-height: 700px;
                display: block;
                padding-right: 0
            }

            .hero-copy {
                width: 100%;
                max-width: 340px;
                padding: 30px 0 250px
            }

            .hero h1 {
                font-size: clamp(32px, 9vw, 42px);
                line-height: 1.12;
                margin-bottom: 14px
            }

            .hero-copy p {
                font-size: 15px;
                line-height: 1.65;
                margin-bottom: 18px
            }

            .hero-actions {
                gap: 10px
            }

            .hero-actions .btn,
            .hero-link {
                width: 100%;
                justify-content: center
            }

            .hero-bg {
                position: absolute;
                inset: 0;
                height: auto;
                margin: 0;
                border-radius: 0;
                background-size: auto 150%;
                background-position: 60% top
            }

            .hero-bg::before {
                content: "";
                position: absolute;
                inset: 0;
                display: block;
                background:
                    linear-gradient(180deg, rgba(255, 255, 255, .94) 0%, rgba(255, 255, 255, .86) 28%, rgba(255, 255, 255, .34) 58%, rgba(255, 255, 255, .12) 100%),
                    linear-gradient(90deg, rgba(255, 255, 255, .98) 0%, rgba(255, 255, 255, .92) 34%, rgba(255, 255, 255, .42) 62%, rgba(255, 255, 255, 0) 100%)
            }

            .hero-live {
                position: absolute;
                left: auto;
                right: 14px;
                top: auto;
                bottom: 26px;
                transform: none;
                width: min(248px, calc(100vw - 52px));
                max-width: none;
                margin-top: 0;
                padding: 0;
                pointer-events: auto;
                height: 124px
            }

            .live-room,
            .chat-card {
                backdrop-filter: blur(10px)
            }

            .live-room {
                margin-bottom: 8px;
                padding: 10px 12px;
                font-size: 12px
            }

            .chat-card {
                position: absolute;
                left: 0;
                right: 0;
                bottom: 0;
                margin: 0;
                padding: 10px 11px;
                animation: cycle 12s infinite
            }

            .chat-card:nth-child(2) {
                animation-delay: 0s
            }

            .chat-card:nth-child(3) {
                animation-delay: 3s
            }

            .chat-card:nth-child(4) {
                animation-delay: 6s
            }

            .chat-card:nth-child(5) {
                animation-delay: 9s
            }

            .avatar {
                width: 24px;
                height: 24px;
                font-size: 11px
            }

            .name {
                font-size: 12px
            }

            .time {
                font-size: 10px
            }

            .msg {
                padding-left: 33px;
                font-size: 12px;
                line-height: 1.35
            }

            .hero-email {
                display: none
            }

            section:not(.hero) {
                padding: 78px 0
            }

            .problem-grid,
            .live-grid {
                grid-template-columns: 1fr;
                gap: 40px
            }

            .problem-copy h2 {
                font-size: 34px
            }

            .section-title {
                font-size: 36px
            }

            .steps {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
                margin-top: 34px
            }

            .product-grid,
            .feature-grid,
            .quotes {
                grid-template-columns: 1fr
            }

            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 34px 30px
            }

            .cta-box h2 {
                font-size: 30px
            }

            .cta-box .btn {
                width: 100%
            }

            .foot {
                flex-direction: column;
                gap: 12px;
                align-items: flex-start
            }
        }

        @media(max-width:420px) {
            .brand {
                font-size: 20px
            }

            .brand img {
                width: 32px;
                height: 32px
            }

            .site-width {
                width: min(100% - 22px, 420px)
            }

            .btn {
                width: 100%;
                padding: 13px 18px
            }

            .hero-copy {
                max-width: 300px;
                padding-top: 24px;
                padding-bottom: 220px
            }

            .hero-kicker {
                font-size: 14px;
                margin-bottom: 14px
            }

            .hero-bg {
                background-position: 60% top
            }

            .hero-live {
                right: 10px;
                bottom: 18px;
                width: min(224px, calc(100vw - 38px))
            }

            .live-room {
                padding: 9px 10px
            }

            .chat-card {
                padding: 9px 10px
            }

            .msg {
                font-size: 13px
            }

            section:not(.hero) {
                padding: 64px 0
            }

            .steps {
                grid-template-columns: 1fr
            }

            .problem-copy h2,
            .section-title {
                font-size: 30px
            }

            .phone-card {
                padding: 20px;
                min-height: auto
            }

            .quote {
                padding: 22px
            }

            .cta-box {
                padding: 30px 24px;
                border-radius: 26px
            }

            .cta-box h2 {
                font-size: 27px
            }
        }
    

/* ===== 상단 베타 모집 배너 ===== */
.promo-bar {
    background: linear-gradient(90deg, #1E63E9, #174EB8);
    color: #fff;
    text-align: center;
    font-size: 14px;
    font-weight: 700;
    padding: 11px 20px;
    line-height: 1.5
}

.promo-bar a {
    color: #fff;
    font-weight: 850;
    text-decoration: underline;
    text-underline-offset: 3px;
    white-space: nowrap;
    margin-left: 4px
}

.promo-bar a:hover {
    opacity: .85
}

@media(max-width:560px) {
    .promo-bar {
        font-size: 12.5px;
        padding: 9px 14px
    }
}

/* ===== 베타 신청 페이지 (beta.html) ===== */
.beta-hero {
    position: relative;
    overflow: hidden;
    text-align: center;
    background: linear-gradient(180deg, var(--blue-soft), #fff)
}

/* 은은한 배경 장식 (빈 여백에 깊이) */
.beta-hero::before,
.beta-hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    z-index: 0;
    pointer-events: none
}

.beta-hero::before {
    width: 360px;
    height: 360px;
    background: rgba(30, 99, 233, .14);
    top: -70px;
    left: -50px
}

.beta-hero::after {
    width: 420px;
    height: 420px;
    background: rgba(14, 165, 233, .12);
    bottom: -150px;
    right: -60px
}

.beta-hero .site-width {
    position: relative;
    z-index: 1
}

.beta-hero h1 {
    font-size: clamp(34px, 4.6vw, 56px);
    line-height: 1.15;
    letter-spacing: -.04em;
    margin: 0 0 18px
}

.beta-hero h1 em {
    font-style: normal;
    color: var(--blue)
}

.beta-hero .lead {
    font-size: 18px;
    color: #566174;
    max-width: 620px;
    margin: 0 auto 10px
}

.beta-hero .note {
    font-size: 14px;
    color: var(--muted);
    margin: 0
}

.welcome {
    display: inline-block;
    margin-top: 20px;
    background: var(--blue-soft);
    color: var(--blue-dark);
    font-weight: 800;
    font-size: 15px;
    padding: 11px 20px;
    border-radius: 999px
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin-top: 46px
}

.benefit-card {
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 38px 26px;
    background: #fff;
    box-shadow: 0 12px 34px rgba(52, 70, 105, .05);
    transition: .25s
}

.benefit-card:hover {
    transform: translateY(-6px);
    border-color: #d8e3f6;
    box-shadow: 0 20px 46px rgba(30, 99, 233, .12)
}

.benefit-card .b-ico {
    width: 58px;
    height: 58px;
    border-radius: 18px;
    background: var(--blue-soft);
    display: grid;
    place-items: center;
    font-size: 27px;
    margin: 0 auto 20px
}

.benefit-card h3 {
    margin: 0 0 8px;
    font-size: 20px
}

.benefit-card p {
    margin: 0 auto;
    max-width: 260px;
    color: var(--muted);
    line-height: 1.55
}

.beta-apply {
    background: var(--cream)
}

.apply-card {
    max-width: 560px;
    margin: 40px auto 0;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 28px;
    padding: 40px;
    box-shadow: 0 22px 55px rgba(52, 45, 37, .08);
    text-align: left
}

.field {
    margin-bottom: 18px
}

.field label {
    display: block;
    font-weight: 800;
    font-size: 14px;
    margin-bottom: 8px
}

.field input,
.field textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 13px 14px;
    font-size: 15px;
    font-family: inherit;
    color: var(--ink);
    background: #fff;
    transition: .2s
}

.field textarea {
    min-height: 110px;
    resize: vertical
}

.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(30, 99, 233, .12)
}

/* 시간대 체크박스 */
.opt {
    font-weight: 600;
    font-size: 12px;
    color: var(--muted);
    margin-left: 6px
}

.checks {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px
}

.chk {
    display: flex;
    align-items: center;
    gap: 9px;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 15px;
    cursor: pointer;
    transition: .15s;
    user-select: none
}

.chk:hover {
    border-color: #c9d6ea
}

.chk input {
    width: 17px;
    height: 17px;
    accent-color: var(--blue);
    flex: 0 0 auto
}

.chk:has(input:checked) {
    border-color: var(--blue);
    background: var(--blue-soft)
}

@media(max-width:420px) {
    .checks {
        grid-template-columns: 1fr
    }
}

.apply-card .btn {
    width: 100%;
    padding: 15px;
    margin-top: 6px;
    font-size: 16px
}

.apply-note {
    color: var(--muted);
    font-size: 13px;
    margin-top: 16px;
    text-align: center
}

.back-home {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 800;
    color: var(--blue);
    margin-top: 30px
}

@media(max-width:900px) {
    .benefit-grid {
        grid-template-columns: 1fr;
        gap: 14px
    }
}

@media(max-width:420px) {
    .apply-card {
        padding: 28px 22px
    }
}