/* ===============================================================
   BlueCaption 시안 2 - 메인 랜딩페이지 전용 스타일
   기존 회원용 style.css는 그대로 사용합니다.
   =============================================================== */

/* 01. 기본 레이아웃 및 상단 메뉴 */
html {
    scroll-behavior: smooth;
}

.landing-body {
    background: #ffffff;
    color: #152e4c;
}

.landing-header {
    height: 78px;
    background: #071934;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.landing-header .container,
.landing-hero .container,
.feature-strip .container,
.samples-section .container,
.steps-section .container,
.language-section .container,
.closing-section .container,
.landing-footer .container {
    width: min(1240px, calc(100% - 60px));
}

.landing-header .brand-icon {
    background: #0985f9;
    color: #ffffff;
    border-radius: 10px;
    width: 36px;
    height: 36px;
}

.brand-highlight {
    color: #63b5ff;
}

.landing-nav,
.landing-auth {
    display: flex;
    align-items: center;
}

.landing-nav {
    gap: 28px;
}

.landing-nav a {
    height: 78px;
    display: inline-flex;
    align-items: center;
    color: #c1d1e7;
    font-weight: 600;
    font-size: 13px;
    border-bottom: 2px solid transparent;
}

.landing-nav a:hover,
.landing-nav a.current {
    color: #ffffff;
    border-bottom-color: #2d9afb;
}

.landing-auth {
    gap: 9px;
}

.nav-login,
.nav-signup {
    height: 39px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 700;
    padding: 0 18px;
}

.nav-login {
    border: 1px solid rgba(181, 210, 255, .42);
    color: #ecf5ff;
}

.nav-signup {
    border: 1px solid #1689ff;
    color: #ffffff;
    background: #1689ff;
    gap: 7px;
}

.nav-login:hover,
.nav-signup:hover {
    filter: brightness(1.15);
}

/* 02. 메인 비주얼 */
.landing-hero {
    position: relative;
    overflow: hidden;
    color: #ffffff;
    background:
        radial-gradient(ellipse at 86% 34%, rgba(20, 120, 229, .27), transparent 45%),
        linear-gradient(115deg, #06152d 0%, #0b2b55 58%, #063c7d 100%);
}

.hero-light {
    pointer-events: none;
    position: absolute;
    border-radius: 50%;
    filter: blur(14px);
}

.hero-light-left {
    width: 650px;
    height: 440px;
    left: -350px;
    top: 160px;
    background: rgba(0, 92, 199, .17);
}

.hero-light-right {
    width: 630px;
    height: 360px;
    right: -270px;
    top: -165px;
    background: rgba(29, 136, 249, .24);
}

.landing-hero-grid {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    gap: 48px;
    min-height: 552px;
    align-items: center;
}

.landing-intro {
    position: relative;
    z-index: 2;
    padding: 64px 0 74px;
}

.landing-kicker,
.section-kicker {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2.1px;
}

.landing-kicker {
    display: flex;
    align-items: center;
    gap: 9px;
    color: #89caff;
    margin: 0 0 23px;
}

.kicker-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    background: #31a7ff;
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(41, 153, 253, .13);
}

.landing-intro h1 {
    margin: 0 0 22px;
    font-size: clamp(38px, 4vw, 58px);
    line-height: 1.29;
    font-weight: 850;
    letter-spacing: -2.5px;
    word-break: keep-all;
}

.landing-intro h1 span {
    color: #43acff;
}

.landing-intro-text {
    margin: 0;
    color: #b9cce3;
    font-size: 15px;
    line-height: 1.95;
    word-break: keep-all;
}

.landing-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 35px;
}

.landing-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    min-height: 52px;
    padding: 0 26px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 800;
    transition: transform .2s, background .2s;
}

.landing-btn:hover {
    transform: translateY(-2px);
}

.landing-btn-main {
    background: linear-gradient(100deg, #117fff, #139efc);
    color: #ffffff;
    box-shadow: 0 10px 24px rgba(2, 68, 171, .18);
}

.landing-btn-light {
    color: #f1f7ff;
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(194, 223, 255, .46);
}

.hero-highlights {
    display: flex;
    gap: 22px;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 36px;
    font-size: 12px;
    color: #a7c2e2;
}

.hero-highlights div {
    display: flex;
    align-items: center;
    gap: 7px;
}

.small-mark {
    color: #38bbff;
    font-weight: 900;
}

/* 03. 메인 영상 이미지와 자막 표시 */
.landing-visual {
    position: relative;
    min-width: 0;
    padding: 16px 0 26px;
}

.visual-orbit {
    position: absolute;
    width: 120%;
    height: 90%;
    top: 0;
    left: -15%;
    border: 1px solid rgba(85, 184, 255, .17);
    border-radius: 50%;
    transform: rotate(-22deg);
}

.visual-orbit-two {
    width: 100%;
    height: 70%;
    top: 12%;
    left: -5%;
    transform: rotate(21deg);
}

.preview-window {
    position: relative;
    z-index: 2;
    padding: 9px;
    border: 1px solid #2e7dc3;
    background: #07162b;
    border-radius: 18px;
    box-shadow: 0 30px 75px rgba(0, 7, 28, .47), 0 0 0 7px rgba(80, 170, 255, .045);
}

.preview-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 35px;
    padding: 0 8px 6px;
    color: #799cbd;
    font-size: 9px;
    letter-spacing: 1px;
    font-weight: 700;
}

.preview-dots {
    display: flex;
    gap: 5px;
}

.preview-dots i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #456d93;
}

.preview-dots i:first-child {
    background: #ff7373;
}

.preview-dots i:nth-child(2) {
    background: #ffca64;
}

.preview-dots i:nth-child(3) {
    background: #4bce9b;
}

.preview-live {
    color: #9dcbf6;
}

.preview-screen {
    position: relative;
    overflow: hidden;
    border-radius: 9px 9px 0 0;
    aspect-ratio: 16 / 9;
    background: #102c50;
}

.preview-screen > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.preview-screen-shade {
    position: absolute;
    inset: 40% 0 0;
    background: linear-gradient(transparent, rgba(0, 10, 28, .75));
}

.preview-language-mark {
    position: absolute;
    left: 17px;
    top: 17px;
    padding: 9px 13px;
    border-radius: 8px;
    background: rgba(5, 17, 39, .83);
    color: #ffffff;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .2px;
}

.preview-language-mark span {
    margin-right: 4px;
}

.preview-caption {
    position: absolute;
    left: 50%;
    bottom: 18px;
    transform: translateX(-50%);
    width: 85%;
    text-align: center;
    padding: 9px 12px;
    background: rgba(4, 12, 29, .79);
    border-radius: 7px;
    color: white;
    font-size: 13px;
    font-weight: 750;
    text-shadow: 0 1px 1px #111;
}

.preview-caption small {
    display: block;
    padding-top: 5px;
    color: #bedcff;
    font-size: 12px;
    font-weight: 500;
}

.preview-controls {
    padding: 14px 10px 8px;
}

.preview-progress {
    width: 100%;
    height: 4px;
    border-radius: 4px;
    background: #34495f;
    overflow: hidden;
}

.preview-progress span {
    display: block;
    width: 34%;
    height: 100%;
    background: #1689ff;
}

.preview-control-line {
    display: flex;
    justify-content: space-between;
    padding: 10px 3px 0;
    font-size: 12px;
    font-weight: 700;
}

.control-muted {
    color: #8fa3bf;
}

.floating-lang,
.floating-subtitle {
    position: absolute;
    z-index: 3;
    box-shadow: 0 9px 24px rgba(0, 11, 37, .26);
}

.floating-lang {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 11px 14px;
    background: #ffffff;
    border-radius: 9px;
    color: #113960;
    font-size: 12px;
    font-weight: 800;
}

.floating-lang span {
    color: #0b90ef;
}

.floating-lang-en {
    right: -22px;
    top: 20%;
}

.floating-lang-jp {
    right: -34px;
    top: 33%;
}

.floating-subtitle {
    bottom: 9px;
    left: -15px;
    padding: 12px 17px;
    color: #0d59a5;
    font-weight: 800;
    font-size: 12px;
    border-radius: 10px;
    background: #e9f6ff;
}

/* 04. 핵심 기능 세 칸 */
.feature-strip {
    position: relative;
    z-index: 3;
    background: #ffffff;
    box-shadow: 0 5px 30px rgba(19, 55, 110, .065);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    padding: 26px 0;
}

.feature-cell {
    display: flex;
    align-items: center;
    gap: 17px;
    min-width: 0;
    padding: 14px 17px;
    border-radius: 14px;
    border: 1px solid #e9eff7;
    background: #ffffff;
}

.feature-icon {
    flex: 0 0 50px;
    height: 50px;
    display: grid;
    place-items: center;
    border-radius: 13px;
    color: #ffffff;
    font-size: 25px;
    font-weight: 800;
}

.feature-blue {
    background: linear-gradient(145deg, #1687f8, #2675e3);
}

.feature-purple {
    background: linear-gradient(145deg, #805afa, #5435dd);
}

.feature-teal {
    background: linear-gradient(145deg, #16cbb0, #0a9da1);
}

.feature-cell h2 {
    margin: 0 0 6px;
    font-size: 14px;
    font-weight: 850;
}

.feature-cell p {
    margin: 0;
    color: #7387a1;
    font-size: 12px;
    line-height: 1.6;
}

/* 05. 샘플 이미지 카드 */
.samples-section {
    padding: 92px 0 84px;
    background: #ffffff;
}

.section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 28px;
}

.section-kicker {
    color: #1784e9;
    margin: 0 0 10px;
}

.section-heading h2,
.steps-heading h2,
.languages-inner h2,
.closing-section h2 {
    color: #112b4f;
    font-size: clamp(25px, 3vw, 35px);
    font-weight: 850;
    letter-spacing: -1.5px;
    margin: 0 0 13px;
    word-break: keep-all;
}

.section-heading h2 em,
.steps-heading h2 em {
    font-style: normal;
    color: #137df1;
}

.section-heading p:not(.section-kicker),
.steps-heading p:not(.section-kicker) {
    margin: 0;
    color: #6a809d;
    font-size: 14px;
    line-height: 1.8;
}

.section-more {
    white-space: nowrap;
    color: #1173d5;
    font-size: 13px;
    font-weight: 800;
    padding-bottom: 5px;
}

.section-more span {
    margin-left: 8px;
}

.sample-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.sample-card {
    display: block;
    padding: 0;
    border: 1px solid #e3eaf4;
    background: white;
    text-align: left;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 9px 19px rgba(20, 68, 137, .055);
    transition: box-shadow .2s, transform .2s;
    min-width: 0;
}

.sample-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 37px rgba(20, 68, 137, .13);
}

.sample-thumb {
    display: block;
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #a1b6cb;
    overflow: hidden;
}

.sample-thumb > img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .3s;
}

.sample-card:hover .sample-thumb > img {
    transform: scale(1.04);
}

.sample-thumb::after {
    content: '';
    position: absolute;
    inset: 45% 0 0;
    background: linear-gradient(transparent, rgba(0, 14, 34, .33));
}

.sample-play {
    position: absolute;
    z-index: 2;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(2, 17, 40, .62);
    border: 1px solid rgba(255, 255, 255, .78);
    color: #ffffff;
    font-size: 15px;
    padding-left: 3px;
}

.sample-duration {
    position: absolute;
    z-index: 2;
    right: 12px;
    bottom: 10px;
    background: rgba(6, 19, 40, .88);
    padding: 4px 6px;
    border-radius: 4px;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
}

.sample-copy {
    display: block;
    padding: 18px 19px 20px;
}

.sample-copy strong,
.sample-copy small {
    display: block;
}

.sample-copy strong {
    font-size: 16px;
    color: #183457;
    margin-bottom: 8px;
}

.sample-copy small {
    color: #7a8fa7;
    font-size: 12px;
}

.sample-tag {
    display: inline-block;
    margin-top: 13px;
    padding: 5px 9px;
    background: #ecf5ff;
    color: #2773bc;
    font-size: 11px;
    font-weight: 700;
    border-radius: 5px;
}

.sample-note {
    margin: 20px 0 0;
    color: #8d9baa;
    font-size: 11px;
}

/* 06. 이용 방법 */
.steps-section {
    padding: 81px 0 86px;
    background: linear-gradient(145deg, #eef6ff, #f5f9fe);
}

.steps-heading {
    text-align: center;
    margin-bottom: 35px;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 23px;
}

.step-card {
    position: relative;
    min-height: 218px;
    padding: 27px 25px;
    background: white;
    border: 1px solid #e2edfb;
    border-radius: 16px;
    box-shadow: 0 8px 18px rgba(21, 70, 137, .04);
}

.step-index {
    position: absolute;
    right: 25px;
    top: 25px;
    font-size: 18px;
    font-weight: 850;
    color: #c0d7f3;
}

.step-icon {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    color: white;
    border-radius: 15px;
    background: linear-gradient(145deg, #0e8aff, #1763d8);
    font-size: 29px;
    font-weight: 700;
    margin-bottom: 22px;
}

.step-card h3 {
    font-size: 18px;
    margin: 0 0 10px;
}

.step-card p {
    color: #73869d;
    font-size: 13px;
    line-height: 1.8;
    margin: 0;
}

/* 07. 지원 언어 */
.language-section {
    padding: 70px 0;
    background: #ffffff;
}

.languages-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 45px;
}

.languages-inner h2 {
    max-width: 460px;
}

.languages-inner p:not(.section-kicker) {
    margin: 0;
    color: #6d849d;
    font-size: 13px;
    line-height: 1.8;
}

.language-pills {
    display: flex;
    gap: 9px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.language-pills span {
    border: 1px solid #dfebf8;
    padding: 12px 16px;
    border-radius: 9px;
    background: #f6faff;
    color: #365575;
    font-weight: 700;
    font-size: 12px;
}

/* 08. 하단 가입 유도 */
.closing-section {
    padding: 58px 0;
    background: linear-gradient(104deg, #081c3b, #104b93);
}

.closing-inner {
    display: flex;
    gap: 25px;
    justify-content: space-between;
    align-items: center;
}

.closing-section p {
    margin: 0 0 10px;
    color: #63b6ff;
    font-size: 11px;
    letter-spacing: 2px;
    font-weight: 800;
}

.closing-section h2 {
    color: white;
    margin-bottom: 8px;
}

.closing-section .closing-inner span {
    color: #b3cce9;
    font-size: 13px;
}

.closing-section .landing-btn {
    white-space: nowrap;
    flex-shrink: 0;
}

/* 09. 푸터 */
.landing-footer {
    padding: 31px 0;
    background: #07162b;
    color: #6e89a9;
}

.landing-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.landing-footer .brand {
    color: #ffffff;
    font-size: 17px;
}

.landing-footer .brand-icon {
    width: 26px;
    height: 26px;
    font-size: 12px;
}

.landing-footer-inner > span {
    font-size: 12px;
}

/* 10. 샘플 이미지 확대 화면 */
.modal-open {
    overflow: hidden;
}

.sample-modal[hidden] {
    display: none;
}

.sample-modal {
    position: fixed;
    z-index: 50;
    inset: 0;
    padding: 30px;
    display: grid;
    place-items: center;
    background: rgba(3, 13, 32, .82);
}

.sample-modal-box {
    position: relative;
    width: min(760px, 100%);
    overflow: hidden;
    border-radius: 16px;
    background: white;
    box-shadow: 0 22px 60px rgba(0, 0, 0, .4);
}

.sample-modal-box img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.sample-modal-close {
    position: absolute;
    right: 16px;
    top: 13px;
    z-index: 2;
    width: 38px;
    height: 38px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(5, 19, 40, .85);
    color: #ffffff;
    font-size: 29px;
}

.sample-modal-content {
    padding: 20px 25px 25px;
}

.sample-modal-content h2 {
    margin: 0 0 8px;
    font-size: 20px;
}

.sample-modal-content p {
    margin: 0 0 12px;
    color: #5e7694;
}

.sample-modal-content small {
    color: #8aa0b8;
}

/* 11. 화면 크기별 배치 */
@media (max-width: 1150px) {
    .landing-nav {
        gap: 17px;
    }

    .landing-hero-grid {
        gap: 28px;
    }

    .landing-intro h1 {
        font-size: 43px;
    }

    .floating-lang-jp {
        right: -15px;
    }
}

@media (max-width: 940px) {
    .landing-header {
        height: auto;
    }

    .landing-header .nav-inner {
        min-height: 76px;
        flex-wrap: wrap;
        padding: 16px 0;
    }

    .landing-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 23px;
    }

    .landing-nav a {
        height: 32px;
    }

    .landing-hero-grid {
        grid-template-columns: 1fr;
        gap: 0;
        padding-bottom: 55px;
    }

    .landing-intro {
        padding: 72px 0 24px;
        text-align: center;
    }

    .landing-kicker,
    .landing-hero-actions,
    .hero-highlights {
        justify-content: center;
    }

    .landing-visual {
        max-width: 670px;
        width: 100%;
        margin: 15px auto 0;
    }

    .feature-grid {
        gap: 10px;
    }

    .feature-cell {
        padding: 12px;
        gap: 10px;
    }

    .feature-icon {
        flex-basis: 39px;
        height: 39px;
    }

    .sample-grid {
        gap: 14px;
    }
}

@media (max-width: 690px) {
    .landing-header .container,
    .landing-hero .container,
    .feature-strip .container,
    .samples-section .container,
    .steps-section .container,
    .language-section .container,
    .closing-section .container,
    .landing-footer .container {
        width: calc(100% - 32px);
    }

    .landing-header .brand {
        font-size: 19px;
    }

    .landing-auth {
        gap: 6px;
    }

    .nav-login,
    .nav-signup {
        font-size: 12px;
        padding: 0 10px;
    }

    .landing-nav {
        gap: 14px;
    }

    .landing-nav a {
        font-size: 12px;
    }

    .landing-intro {
        padding-top: 55px;
    }

    .landing-intro h1 {
        font-size: clamp(32px, 7vw, 40px);
        letter-spacing: -1.8px;
    }

    .landing-intro-text {
        font-size: 13px;
    }

    .landing-hero-actions {
        gap: 9px;
    }

    .landing-btn {
        min-height: 45px;
        padding: 0 16px;
        font-size: 12px;
        gap: 8px;
    }

    .hero-highlights {
        gap: 12px;
        font-size: 11px;
    }

    .floating-lang,
    .floating-subtitle {
        display: none;
    }

    .feature-grid,
    .sample-grid,
    .steps-grid,
    .languages-inner {
        grid-template-columns: 1fr;
    }

    .feature-grid {
        padding: 18px 0;
    }

    .feature-cell {
        padding: 14px;
    }

    .samples-section {
        padding: 62px 0;
    }

    .section-heading {
        align-items: start;
        flex-direction: column;
        gap: 15px;
    }

    .sample-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 13px;
    }

    .sample-copy {
        padding: 13px;
    }

    .sample-copy strong {
        font-size: 13px;
    }

    .sample-copy small {
        font-size: 11px;
    }

    .steps-section {
        padding: 61px 0;
    }

    .step-card {
        min-height: 175px;
    }

    .language-section {
        padding: 55px 0;
    }

    .languages-inner {
        gap: 25px;
    }

    .language-pills {
        justify-content: flex-start;
    }

    .closing-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .landing-footer-inner {
        flex-wrap: wrap;
    }
}

@media (max-width: 390px) {
    .sample-grid {
        grid-template-columns: 1fr;
    }

    .landing-nav {
        gap: 9px;
    }
}


/* ===============================================================
   10. 샘플 영상 영역 — 데스크톱 1 + 2x2 + 4 카드
       비디오 크기를 부모 카드와 독립적으로 고정합니다.
   =============================================================== */
.showcase-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 18px;
    margin-bottom: 22px;
    align-items: start;
}

/* 대표 샘플 카드는 오른쪽 카드 높이에 맞춰 늘어나면 안 됩니다. */
.showcase-main {
    display: block;
    align-self: start;
    width: 100%;
    height: auto;
    padding: 0;
    border: 1px solid #d9e6f4;
    border-radius: 18px;
    overflow: hidden;
    text-align: left;
    color: #ffffff;
    background: #0b2348;
    box-shadow: 0 14px 30px rgba(11, 43, 89, 0.13);
}

.showcase-main-media {
    position: relative;
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #102c50;
}

.showcase-main-media > video {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.showcase-main-media::after {
    position: absolute;
    inset: 58% 0 0;
    content: "";
    background: linear-gradient(transparent, rgba(5, 18, 43, 0.42));
    pointer-events: none;
}

.showcase-play {
    position: absolute;
    z-index: 2;
    left: 18px;
    bottom: 18px;
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    color: #1356a6;
    background: #ffffff;
    box-shadow: 0 8px 25px rgba(4, 18, 49, 0.2);
    pointer-events: none;
}

.showcase-badge,
.showcase-time {
    position: absolute;
    z-index: 2;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    padding: 6px 10px;
    border-radius: 6px;
    background: rgba(6, 28, 61, 0.7);
    pointer-events: none;
}

.showcase-badge { top: 15px; left: 15px; }
.showcase-time { right: 15px; bottom: 18px; }

.showcase-main-copy {
    display: block;
    padding: 18px 22px 21px;
}

.showcase-main-copy strong {
    display: block;
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 7px;
}

.showcase-main-copy small {
    display: block;
    font-size: 13px;
    color: #90c9ff;
    margin-bottom: 10px;
}

.showcase-main-copy > span {
    display: block;
    font-size: 13px;
    line-height: 1.6;
    color: #d1e5fb;
}

/* 오른쪽 샘플은 세로로 길게 늘어지지 않고 2x2로 배치합니다. */
.showcase-side {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(2, auto);
    align-content: start;
    align-items: start;
    gap: 16px;
    min-width: 0;
}

.mini-sample {
    display: block;
    width: 100%;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: hidden;
    text-align: left;
    border-radius: 14px;
    border: 1px solid #dfebf7;
    background: #ffffff;
}

.mini-sample > video {
    display: block;
    width: 100%;
    min-width: 0;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    background: #102c50;
}

.mini-sample > span {
    display: block;
    padding: 11px 13px 13px;
}

.mini-sample strong {
    display: block;
    margin-bottom: 6px;
    color: #132d50;
    font-size: 14px;
    font-weight: 800;
}

.mini-sample small {
    display: block;
    font-size: 11px;
    color: #67819e;
    line-height: 1.5;
}

/* 하단 썸네일 목록 — 동일한 16:9 비율 */
.sample-grid-extended {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: start;
}

.sample-grid-extended > .sample-card {
    height: auto;
}

.sample-thumb {
    height: auto;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.sample-thumb > video {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #102c50;
}

/* 상단 소개 영상도 화면을 가득 채웁니다. */
.preview-screen > .hero-demo-video {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #102c50;
}

.preview-screen-shade,
.preview-language-mark,
.preview-caption,
.sample-play,
.sample-duration {
    pointer-events: none;
}

/* 클릭 시 표시되는 실제 HTML5 비디오 플레이어 */
.sample-modal[hidden] { display: none !important; }

.sample-modal-box #sample-modal-video {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: #06152e;
}

.sample-note a {
    color: #126fd5;
    font-weight: 700;
    text-decoration: underline;
}

/* 태블릿 */
@media (max-width: 1000px) {
    .showcase-grid {
        grid-template-columns: 1fr;
    }

    .showcase-side {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sample-grid-extended {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* 휴대폰 */
@media (max-width: 600px) {
    .showcase-main-copy { padding: 15px 17px 18px; }
    .showcase-main-copy strong { font-size: 18px; }
    .showcase-side { gap: 10px; }
    .mini-sample > span { padding: 9px 10px 11px; }
    .mini-sample strong { font-size: 12px; }
    .mini-sample small { font-size: 10px; }
    .sample-grid-extended { gap: 10px; }
}

@media (max-width: 390px) {
    .showcase-side,
    .sample-grid-extended {
        grid-template-columns: 1fr;
    }
}