@charset "utf-8";
/* 공유 이모지 아이콘 세트(전역) — raw emoji 대체용. www/css/common/emoji.css */
@import url("/www/css/common/emoji.css");

/* ============================================
   초기화 및 기본 스타일
   ============================================ */
* {
    box-sizing: border-box;
}

body, button, dd, dl, dt, fieldset, form, h1, h2, h3, h4, h5, h6, hr, input, legend, li, ol, p, select, table, td, textarea, th, ul {
    margin: 0;
    padding: 0;
}

body, button, h1, h2, h3, h4, h5, input, select, table, textarea {
    font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;
    font-size: 16px;
    line-height: 1.6;
    letter-spacing: -0.02em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: #ffffff;
    color: #000000;
    word-break: keep-all;
    overflow-x: hidden;
    position: relative;
}

html {
    font-size: 10px;
    scroll-behavior: smooth;
    background: #ffffff;
    min-height: 100%;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.7;
}

a:focus-visible {
    outline: 2px solid #000;
    outline-offset: 4px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.blind, .screen_out, .skip {
    position: absolute;
    clip: rect(0 0 0 0);
    width: 1px;
    height: 1px;
    margin: -1px;
    overflow: hidden;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #000;
    color: #fff;
    padding: 8px 16px;
    z-index: 100;
    font-weight: bold;
}

.skip-link:focus {
    top: 0;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ============================================
   헤더
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.logo-img {
    width: 111px;
    height: auto;
}

.main-nav {
    margin-left: auto;
}

.nav-list {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav-link {
    font-size: 1.6rem;
    font-weight: 500;
    color: #000;
    letter-spacing: 0;
    text-transform: uppercase;
}

.nav-link.active {
    font-weight: 700;
    color: #3b82f6;
}

/* 햄버거 메뉴 버튼 */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1002;
}

.hamburger-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: #1a1a2e;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger-btn span:nth-child(1) {
    margin-bottom: 6px;
}

.hamburger-btn span:nth-child(3) {
    margin-top: 6px;
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* 모바일 네비게이션 - 오늘의집 스타일 */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    max-width: 85vw;
    height: 100%;
    background: #fff;
    z-index: 1001;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-nav.active {
    transform: translateX(0);
}

.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid #f0f0f0;
}

.mobile-nav-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #292929;
}

.mobile-nav-close {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    cursor: pointer;
    color: #828C94;
    padding: 0;
}

.mobile-nav-close svg {
    width: 24px;
    height: 24px;
}

.mobile-nav-list {
    list-style: none;
    padding: 8px 0;
    margin: 0;
}

.mobile-nav-list li {
    margin: 0;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    font-size: 1.5rem;
    font-weight: 400;
    color: #292929;
    transition: background-color 0.15s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link:focus {
    background-color: #f7f8fa;
}

.mobile-nav-link:active {
    background-color: #eef0f4;
}

.mobile-nav-link.active {
    color: #35c5f0;
    font-weight: 600;
}

.mobile-nav-link .menu-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mobile-nav-link .menu-icon svg {
    width: 20px;
    height: 20px;
    color: #828C94;
}

.mobile-nav-link.active .menu-icon svg {
    color: #35c5f0;
}

.mobile-nav-divider {
    height: 8px;
    background: #f7f8fa;
    margin: 8px 0;
}

/* 모바일 오버레이 */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.mobile-nav-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* ============================================
   Hero 섹션
   ============================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 40px 80px;
    position: relative;
    background: #ffffff;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    z-index: 0;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.hero-title {
    display: inline-block;
    font-size: 8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 40px;
    letter-spacing: -0.02em;
    color: #fff;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 30%, #e0e0e0 60%, #d0d0d0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 2.4rem;
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 60px;
    color: #fff;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-cta {
    display: inline-block;
    font-size: 1.6rem;
    font-weight: 500;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 16px 40px;
    border: 2px solid #fff;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-cta:hover {
    background: rgba(255, 255, 255, 0.3);
    color: #fff;
    opacity: 1;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.hero-video-credit {
    position: absolute;
    bottom: 20px;
    right: 20px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    z-index: 3;
    font-weight: 300;
    letter-spacing: 0.02em;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    z-index: 3;
}

.scroll-text {
    font-size: 1.2rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #999;
}

.scroll-indicator::after {
    content: '';
    width: 1px;
    height: 40px;
    background: #999;
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0%, 100% {
        opacity: 0;
        transform: translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateY(10px);
    }
}

/* ============================================
   Sponsorship 섹션 (협찬)
   ============================================ */
.sponsorship-section {
    padding: 120px 0;
    background: #ffffff;
}

.section-heading {
    font-size: 1.4rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 20px;
    color: #666;
}

.sponsorship-main-title {
    font-size: 4.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.05em;
    color: #1a1a2e;
}

.sponsorship-subtitle {
    font-size: 1.8rem;
    text-align: center;
    color: #666;
    margin-bottom: 80px;
}

.sponsorship-content {
    max-width: 1100px;
    margin: 0 auto;
}

/* 협찬 프로세스 */
.sponsorship-process {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 30px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.1);
    min-width: 200px;
    flex: 1;
    max-width: 280px;
}

.step-number {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: #fff;
    font-size: 2rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 20px;
}

.step-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 10px;
}

.step-desc {
    font-size: 1.4rem;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.process-arrow {
    width: 40px;
    height: 40px;
    color: #3b82f6;
    flex-shrink: 0;
}

.process-arrow svg {
    width: 100%;
    height: 100%;
}

/* 협찬 카드 */
.sponsorship-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.sponsor-card {
    background: #fff;
    border-radius: 24px;
    padding: 48px 40px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.sponsor-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.sponsor-card-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.sponsor-card:hover .sponsor-card-icon {
    transform: scale(1.1);
}

.sponsor-card-icon svg {
    width: 64px;
    height: 64px;
}

.sponsor-card.for-team .sponsor-card-icon {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1d4ed8;
}

.sponsor-card.for-brand .sponsor-card-icon {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #047857;
}

.sponsor-card-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.sponsor-card.for-team .sponsor-card-badge {
    background: #eff6ff;
    color: #1d4ed8;
}

.sponsor-card.for-brand .sponsor-card-badge {
    background: #ecfdf5;
    color: #047857;
}

.sponsor-card-title {
    font-size: 2.6rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: #111827;
}

.sponsor-benefits {
    list-style: none;
    padding: 0;
    margin: 0 0 36px 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
    text-align: left;
}

.sponsor-benefits li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    background: #f8fafc;
    border-radius: 12px;
    transition: background 0.2s ease;
}

.sponsor-benefits li:hover {
    background: #f1f5f9;
}

.benefit-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.benefit-text {
    font-size: 1.5rem;
    color: #374151;
    line-height: 1.5;
}

.sponsor-cta {
    display: inline-block;
    width: 100%;
    text-align: center;
    padding: 18px 32px;
    border-radius: 14px;
    font-size: 1.6rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.sponsor-card.for-team .sponsor-cta {
    background: #1d4ed8;
    color: #fff;
}

.sponsor-card.for-team .sponsor-cta:hover {
    background: #1e40af;
    box-shadow: 0 8px 24px rgba(29, 78, 216, 0.3);
    opacity: 1;
}

.sponsor-card.for-brand .sponsor-cta {
    background: #047857;
    color: #fff;
}

.sponsor-card.for-brand .sponsor-cta:hover {
    background: #065f46;
    box-shadow: 0 8px 24px rgba(4, 120, 87, 0.3);
    opacity: 1;
}

/* 협찬 통계 */
.sponsorship-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding: 40px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.sponsor-stat {
    text-align: center;
}

.sponsor-stat-value {
    display: block;
    font-size: 4rem;
    font-weight: 800;
    color: #1d4ed8;
    line-height: 1;
    margin-bottom: 8px;
}

.sponsor-stat-label {
    font-size: 1.4rem;
    color: #666;
}

/* 협찬 우선 선정 기준 */
.sponsorship-criteria {
    margin-top: 40px;
    padding: 32px 40px;
    background: rgba(29, 78, 216, 0.05);
    border: 1px solid rgba(29, 78, 216, 0.15);
    border-radius: 16px;
}

.criteria-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: #1d4ed8;
    margin-bottom: 20px;
    text-align: center;
}

.criteria-list {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.criteria-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.criteria-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.criteria-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.criteria-label {
    font-size: 1.4rem;
    font-weight: 600;
    color: #222;
}

.criteria-desc {
    font-size: 1.3rem;
    color: #666;
}

@media (max-width: 768px) {
    .sponsorship-criteria {
        margin-top: 32px;
        margin-bottom: 32px;
        padding: 24px 20px;
    }

    .criteria-title {
        font-size: 1.5rem;
        margin-bottom: 16px;
    }

    .criteria-list {
        flex-direction: column;
        gap: 16px;
    }

    .criteria-list li {
        align-items: flex-start;
    }

    .criteria-icon {
        font-size: 1.8rem;
    }

    .criteria-label {
        font-size: 1.3rem;
    }

    .criteria-desc {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .sponsorship-criteria {
        margin-top: 24px;
        margin-bottom: 24px;
        padding: 20px 16px;
        border-radius: 12px;
    }

    .criteria-title {
        font-size: 1.4rem;
        margin-bottom: 14px;
    }

    .criteria-list {
        gap: 14px;
    }

    .criteria-icon {
        font-size: 1.6rem;
        width: 24px;
    }

    .criteria-label {
        font-size: 1.25rem;
    }

    .criteria-desc {
        font-size: 1.15rem;
        line-height: 1.4;
    }
}

/* ============================================
   About 섹션
   ============================================ */
.about-section {
    padding: 120px 0;
    background: #111827;
    position: relative;
    text-align: center;
}

.about-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-text .section-heading,
.about-text .about-main-title,
.about-text .about-description {
    text-align: center;
}

.about-section .section-heading {
    color: #999;
}

.about-section .about-main-title {
    color: #ffffff;
}

.about-section .about-description {
    color: #cccccc;
}

.about-text .more-link {
    margin-top: 40px;
}

.about-image .image-placeholder {
    width: 100%;
    padding-top: 75%;
    background: #f0f0f0;
    border: 2px dashed #ccc;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.about-main-title {
    font-size: 4.8rem;
    font-weight: 700;
    margin-bottom: 40px;
    letter-spacing: -0.05em;
}

.about-description {
    font-size: 2rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: -0.01em;
}

.more-link {
    display: inline-block;
    font-size: 1.6rem;
    font-weight: 500;
    color: #000;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 16px 40px;
    border: 2px solid #000;
    transition: all 0.3s ease;
}

.about-section .more-link {
    color: #ffffff;
    border-color: #ffffff;
}

.about-section .more-link:hover {
    background: #ffffff;
    color: #111827;
}

.more-link:hover {
    background: #000;
    color: #fff;
    opacity: 1;
}

/* ============================================
   Features 섹션
   ============================================ */
.features-section {
    padding: 120px 0;
    background: #f8fafc;
}

.features-main-title {
    font-size: 4.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    letter-spacing: -0.05em;
}

/* Features 탭 */
.features-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.feature-tab {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px;
    background: #fff;
    border: 2px solid #e2e8f0;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.feature-tab:hover {
    border-color: #cbd5e1;
    background: #f8fafc;
}

.feature-tab.active {
    background: #111827;
    border-color: #111827;
    color: #fff;
}

.feature-tab-icon {
    font-size: 2rem;
    line-height: 1;
}

.feature-tab-label {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Features 패널 */
.features-panels {
    max-width: 1000px;
    margin: 0 auto;
}

.features-section-note {
    text-align: right;
    font-size: 1.2rem;
    color: #999;
    margin-top: 40px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.feature-panel {
    display: none;
    animation: fadeIn 0.4s ease;
}

.feature-panel.active {
    display: block;
}

.feature-panel-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px 32px;
    border-radius: 16px;
    margin-bottom: 32px;
}

.feature-panel-header.soccer {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
}

.feature-panel-header.bowling {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.panel-header-icon {
    font-size: 3.6rem;
    line-height: 1;
}

.panel-header-text h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 4px;
}

.panel-header-text p {
    font-size: 1.4rem;
    color: #374151;
    margin: 0;
}

/* Features 리스트 그리드 */
.feature-list-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.feature-list-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    transition: all 0.2s ease;
}

.feature-list-item:hover {
    border-color: #cbd5e1;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.feature-list-icon {
    font-size: 2.4rem;
    line-height: 1;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8fafc;
    border-radius: 12px;
}

.feature-list-content {
    flex: 1;
    min-width: 0;
}

.feature-list-title {
    font-size: 1.7rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 6px;
}

.feature-list-desc {
    font-size: 1.4rem;
    color: #6b7280;
    line-height: 1.6;
    margin: 0;
}

/* Feature Accordion */
.feature-accordion {
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    background: #fff;
    transition: box-shadow 0.3s ease;
}

.feature-accordion:last-child {
    margin-bottom: 0;
}

.feature-accordion:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.feature-accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    background: #f8fafc;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.feature-accordion-header:hover {
    background: #f1f5f9;
}

.feature-accordion.active .feature-accordion-header {
    background: #e2e8f0;
}

.accordion-title {
    font-size: 1.6rem;
    font-weight: 600;
    color: #111827;
    display: flex;
    align-items: center;
    gap: 10px;
}

.accordion-count {
    font-size: 1.2rem;
    font-weight: 500;
    color: #6b7280;
    background: #e2e8f0;
    padding: 2px 10px;
    border-radius: 12px;
}

.feature-accordion.active .accordion-count {
    background: #cbd5e1;
}

.accordion-icon {
    width: 24px;
    height: 24px;
    position: relative;
    flex-shrink: 0;
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    background: #64748b;
    transition: transform 0.3s ease;
}

.accordion-icon::before {
    width: 12px;
    height: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.accordion-icon::after {
    width: 2px;
    height: 12px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.feature-accordion.active .accordion-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
}

.feature-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.feature-accordion.active .feature-accordion-content {
    max-height: 2000px;
}

.feature-accordion-inner {
    padding: 20px 24px;
    border-top: 1px solid #e2e8f0;
}

/* Feature Category (펼쳐진 레이아웃) */
.feature-category {
    margin-bottom: 48px;
}

.feature-category:last-child {
    margin-bottom: 0;
}

.feature-category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #e2e8f0;
}

.feature-category-header .category-icon {
    font-size: 2.4rem;
    line-height: 1;
}

.feature-category-header .category-title {
    font-size: 2rem;
    font-weight: 700;
    color: #111827;
    margin: 0;
}

.feature-category-header .category-count {
    font-size: 1.3rem;
    font-weight: 500;
    color: #6b7280;
    background: #f1f5f9;
    padding: 4px 12px;
    border-radius: 16px;
    margin-left: auto;
}

/* Special category header (soccer, bowling) */
.feature-category-header.special {
    flex-wrap: wrap;
    padding: 24px;
    border-radius: 16px;
    border-bottom: none;
    margin-bottom: 32px;
}

.feature-category-header.special.soccer {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
}

.feature-category-header.special.bowling {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.feature-category-header.special.lesson {
    background: linear-gradient(135deg, #ede9fe 0%, #c4b5fd 100%);
}

.feature-category-header.special.running {
    background: linear-gradient(135deg, #fff7ed 0%, #fed7aa 100%);
}

.feature-category-header.special .category-icon {
    font-size: 3.6rem;
}

.feature-category-header.special .category-header-text {
    flex: 1;
}

.feature-category-header.special .category-title {
    font-size: 2.2rem;
    margin-bottom: 4px;
}

.feature-category-header.special .category-subtitle {
    font-size: 1.4rem;
    color: #374151;
    margin: 0;
}

/* ============================================
   Features Page 전용 스타일
   ============================================ */
.features-hero-section {
    padding: 160px 40px 80px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    text-align: center;
    color: #fff;
}

.features-hero-title {
    font-size: 4.8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.features-hero-subtitle {
    font-size: 2rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 50px;
}

.features-summary {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.summary-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.summary-number {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.summary-label {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.features-section.features-page {
    padding: 80px 0 120px;
    background: #f8fafc;
}

.features-section.features-page .features-tabs {
    position: sticky;
    top: 80px;
    background: #f8fafc;
    padding: 20px 0;
    z-index: 100;
    margin-bottom: 40px;
}

.features-cta-section {
    padding: 100px 40px;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    text-align: center;
    color: #fff;
}

.cta-title {
    font-size: 3.6rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 1.8rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.cta-button {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 8px;
    font-size: 1.6rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.cta-button.primary {
    background: #fff;
    color: #1d4ed8;
}

.cta-button.primary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    opacity: 1;
}

.cta-button.secondary {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    opacity: 1;
}

/* Site Footer */
.site-footer {
    padding: 60px 40px;
    background: #1a1a2e;
    color: #fff;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.4rem;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
    opacity: 1;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.3rem;
}

/* Features Link Card (for index.php) */
.features-link-section {
    padding: 100px 0;
    background: #f8fafc;
    text-align: center;
}

.features-link-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px;
    background: #fff;
    border-radius: 24px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.features-link-icon {
    font-size: 4rem;
    margin-bottom: 24px;
}

.features-link-title {
    font-size: 3.2rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 16px;
}

.features-link-desc {
    font-size: 1.8rem;
    color: #6b7280;
    margin-bottom: 32px;
    line-height: 1.6;
}

.features-link-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: #fff;
    font-size: 1.6rem;
    font-weight: 600;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.features-link-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
    opacity: 1;
}

.features-link-button svg {
    width: 20px;
    height: 20px;
}

/* 공통 기능 패널 - 더 컴팩트하게 */
.feature-panel[data-feature-panel="common"] .feature-list-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.feature-panel[data-feature-panel="common"] .feature-list-item {
    padding: 16px 18px;
    gap: 14px;
}

.feature-panel[data-feature-panel="common"] .feature-list-icon {
    width: 40px;
    height: 40px;
    font-size: 1.8rem;
    border-radius: 10px;
}

.feature-panel[data-feature-panel="common"] .feature-list-title {
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.feature-panel[data-feature-panel="common"] .feature-list-desc {
    font-size: 1.3rem;
}

/* ============================================
   Use Cases 섹션
   ============================================ */
.usecases-section {
    padding: 120px 0;
    background: #ffffff;
}

.usecases-main-title {
    font-size: 4.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    letter-spacing: -0.05em;
}

.usecases-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.usecase-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 32px;
    background: #f5f5f5;
    border: 2px solid transparent;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 140px;
}

.usecase-tab:hover {
    background: #eee;
}

.usecase-tab.active {
    background: #fff;
    border-color: #000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.tab-icon {
    font-size: 2.8rem;
    line-height: 1;
}

.tab-label {
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
}

.usecases-content {
    position: relative;
}

.usecase-panel {
    display: none;
    animation: fadeIn 0.4s ease;
}

.usecase-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.usecase-panel-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    background: #f8fafc;
    border-radius: 24px;
    padding: 60px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.usecase-title {
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.03em;
}

.usecase-subtitle {
    font-size: 1.8rem;
    color: #666;
    margin-bottom: 36px;
}

.usecase-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.usecase-features li {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-left: 24px;
    position: relative;
}

.usecase-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: #22c55e;
    font-weight: 700;
    font-size: 1.6rem;
}

.usecase-features li strong {
    font-size: 1.7rem;
    font-weight: 600;
    color: #111;
}

.usecase-features li span {
    font-size: 1.4rem;
    color: #666;
    line-height: 1.5;
}

/* Use Cases Visual Mockups */
.usecase-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.usecase-mockup {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 380px;
}

.mockup-caption {
    text-align: center;
    font-size: 1.3rem;
    color: #999;
    margin-top: 20px;
    margin-bottom: 0;
}

/* Sports Mockup - Field */
.mockup-field {
    background: linear-gradient(180deg, #22c55e 0%, #16a34a 100%);
    border-radius: 12px;
    height: 200px;
    position: relative;
    overflow: hidden;
}

.field-line {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.5);
}

.field-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
}

.team-a, .team-b {
    position: absolute;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-around;
    padding: 0 20px;
}

.team-a {
    top: 20px;
}

.team-b {
    bottom: 20px;
}

.player {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
}

.team-a .player {
    background: #3b82f6;
}

.team-b .player {
    background: #ef4444;
}

/* Outdoor Mockup */
.outdoor-mockup {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.weather-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    border-radius: 12px;
    color: #fff;
}

.weather-icon {
    font-size: 3.6rem;
}

.weather-info {
    display: flex;
    flex-direction: column;
}

.weather-temp {
    font-size: 2.4rem;
    font-weight: 700;
}

.weather-desc {
    font-size: 1.3rem;
    opacity: 0.9;
}

.checkin-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: #dcfce7;
    border-radius: 12px;
}

.checkin-icon {
    font-size: 2rem;
}

.checkin-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: #16a34a;
}

/* Study Mockup */
.study-mockup {
    padding: 30px;
}

.attendance-card {
    text-align: center;
}

.attendance-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
}

.attendance-chart {
    margin-bottom: 16px;
}

.chart-bar {
    height: 20px;
    background: #e5e7eb;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.chart-bar::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--percent);
    background: linear-gradient(90deg, #22c55e 0%, #16a34a 100%);
    border-radius: 10px;
}

.chart-value {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
    z-index: 1;
}

.attendance-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    font-size: 1.4rem;
    color: #666;
}

/* Hobby Mockup */
.hobby-mockup {
    padding: 24px;
}

.chat-bubbles {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 1.4rem;
    max-width: 85%;
    line-height: 1.5;
}

.chat-bubble.left {
    background: #f3f4f6;
    color: #333;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chat-bubble.right {
    background: #3b82f6;
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

/* Lesson Mockup */
.lesson-mockup {
    padding: 24px;
}

.lesson-membership-card {
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    border-radius: 16px;
    padding: 20px;
    color: #fff;
}

.lesson-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.lesson-card-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 1.2rem;
    font-weight: 600;
}

.lesson-card-type {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
}

.lesson-card-body {
    text-align: center;
    padding: 8px 0 16px;
}

.lesson-card-plan {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.lesson-card-count {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 6px;
    margin-bottom: 12px;
}

.lesson-count-label {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.7);
}

.lesson-count-value {
    font-size: 3.6rem;
    font-weight: 800;
    line-height: 1;
}

.lesson-count-total {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.7);
}

.lesson-card-progress {
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.lesson-progress-bar {
    height: 100%;
    width: var(--used);
    background: #fbbf24;
    border-radius: 4px;
    transition: width 0.3s ease;
}

.lesson-card-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
}

.lesson-info-divider {
    opacity: 0.4;
}

.lesson-card-notification {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    padding: 10px 14px;
    margin-top: 16px;
    font-size: 1.3rem;
}

.lesson-noti-icon {
    font-size: 1.4rem;
}

.lesson-noti-text {
    color: rgba(255, 255, 255, 0.9);
}

/* Bowling Mockup */
.bowling-mockup {
    padding: 24px;
}

.bowling-score-card {
    background: linear-gradient(135deg, #1e3a5f 0%, #0f2744 100%);
    border-radius: 16px;
    padding: 20px;
    color: #fff;
}

.bowling-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.bowling-game {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.7);
}

.bowling-perfect {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fbbf24;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.bowling-frames {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 16px;
}

.bowling-frames .frame {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 700;
    color: #fbbf24;
}

.bowling-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.total-label {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.7);
}

.total-score {
    font-size: 2.4rem;
    font-weight: 800;
    color: #22c55e;
}

/* ============================================
   Admin Features 섹션
   ============================================ */
.admin-section {
    padding: 120px 0;
    background: #1e293b;
    color: #fff;
}

.admin-main-title {
    font-size: 4.8rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.05em;
    color: #fff;
}

.admin-subtitle {
    font-size: 1.8rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 80px;
}

.admin-section .section-heading {
    color: rgba(255, 255, 255, 0.5);
}

.admin-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.admin-section-note {
    text-align: right;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 24px;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.admin-more-btn-wrap {
    text-align: center;
    margin-top: 40px;
}

.admin-more-btn {
    display: inline-block;
    padding: 16px 48px;
    font-size: 1.6rem;
    font-weight: 600;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.08);
    text-decoration: none;
    transition: all 0.3s ease;
    letter-spacing: 0.02em;
}

.admin-more-btn:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.6);
    color: #fff;
    opacity: 1;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.admin-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 36px;
    transition: all 0.3s ease;
}

.admin-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.admin-card-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 28px;
}

.admin-icon-wrap {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    border-radius: 14px;
    flex-shrink: 0;
}

.admin-icon-wrap.warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.admin-icon-wrap.money {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.admin-icon-svg {
    width: 28px;
    height: 28px;
    color: #fff;
}

.admin-card-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
}

.admin-card-body {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.admin-card-desc {
    font-size: 1.4rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* Role Badges */
.admin-feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.admin-feature-list li {
    display: flex;
    align-items: center;
    gap: 14px;
}

.role-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 1.3rem;
    font-weight: 600;
    min-width: 70px;
}

.role-badge.owner {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #78350f;
}

.role-badge.staff {
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
    color: #fff;
}

.role-badge.member {
    background: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
}

.role-desc {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.7);
}

/* Stats Preview */
.stats-preview {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
}

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

.stat-label {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.6);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: #fff;
}

.stat-value.highlight {
    color: #22c55e;
    font-size: 1.8rem;
}

/* Noshow Preview */
.noshow-preview {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.noshow-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
}

.noshow-icon {
    font-size: 2rem;
}

.noshow-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.noshow-type {
    font-size: 1.5rem;
    font-weight: 600;
    color: #fff;
}

.noshow-desc {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.5);
}

/* Money Preview */
.money-preview {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Auto Fee Features */
.money-auto-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 4px;
}

.auto-feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.85);
}

.auto-feature-item .auto-icon {
    font-size: 1.4rem;
    width: 20px;
    text-align: center;
}

.auto-feature-item .auto-text {
    flex: 1;
}

/* Attendance Auto Features */
.attendance-auto-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.attendance-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.attendance-feature-item .attendance-icon {
    font-size: 1.6rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.attendance-feature-item .attendance-feature-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.attendance-feature-item .attendance-feature-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: #fff;
}

.attendance-feature-item .attendance-feature-desc {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Member Manage Features */
.member-manage-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.member-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.member-feature-item .member-feature-icon {
    font-size: 1.6rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.member-feature-item .member-feature-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.member-feature-item .member-feature-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: #fff;
}

.member-feature-item .member-feature-desc {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.6);
}

.money-summary {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

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

.money-label {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.6);
}

.money-value {
    font-size: 1.5rem;
    font-weight: 600;
}

.money-value.income {
    color: #22c55e;
}

.money-value.expense {
    color: #f87171;
}

.money-balance {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.balance-label {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.7);
}

.balance-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
}

/* ============================================
   Performance 섹션
   ============================================ */
.performance-section {
    padding: 120px 0;
    background: #ffffff;
}

.performance-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 80px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.performance-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.performance-label {
    font-size: 1.6rem;
    color: #666;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}

.performance-value {
    font-size: 7.2rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.05em;
}

.unit {
    font-size: 2.4rem;
    font-weight: 400;
    color: #666;
    margin-left: 8px;
}

/* ============================================
   Teams 섹션
   ============================================ */
.teams-section {
    padding: 120px 0 60px;
    background: #f8fafc;
}

.teams-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 0;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.team-card {
    background: #ffffff;
    overflow: hidden;
    transition: transform 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.team-card:hover {
    transform: translateY(-10px);
}

.team-thumb {
    width: 100%;
    padding-top: 66.67%;
    position: relative;
    overflow: hidden;
    background: #f0f0f0;
}

.team-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-info {
    padding: 20px;
}

.team-category {
    display: inline-block;
    font-size: 1.2rem;
    font-weight: 600;
    color: #666;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.team-name {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: -0.02em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.download-section {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.download-link {
    display: block;
    transition: transform 0.3s ease;
}

.download-link:hover {
    transform: translateY(-5px);
    opacity: 1;
}

.download-link img {
    height: 50px;
    width: auto;
}

/* ============================================
   Contact 섹션
   ============================================ */
.contact-section {
    padding: 120px 0;
    background: #ffffff;
    text-align: center;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-description {
    font-size: 2rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 60px;
    letter-spacing: -0.01em;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    text-align: left;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-label {
    font-size: 1.6rem;
    font-weight: 600;
    color: #000;
}

.contact-value {
    font-size: 1.8rem;
    color: #666;
}

.contact-value a {
    color: #000;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.contact-time {
    display: block;
    font-size: 1.4rem;
    color: #999;
    margin-top: 8px;
}

/* ============================================
   푸터
   ============================================ */
footer {
    background: #000;
    color: #fff;
    padding: 60px 0 40px;
}

footer .inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 80px;
}

.footer-left {
    flex: 0 0 auto;
    min-width: 300px;
}

.footer-right {
    flex: 1 1 auto;
}

.footer-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: #fff;
    line-height: 1.4;
}

.help-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.help-list__item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.help-item__title {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.4;
}

.help-item__title a {
    color: #fff;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.help-item__title a:hover {
    opacity: 0.8;
}

.help-item__info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 4px;
}

.info-title {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.5;
}

.info-time {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.5;
}

.footer-link__list {
    list-style: none;
    margin: 0 0 24px 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 16px 24px;
}

.footer-link__item {
    margin: 0;
    padding: 0;
}

.footer-link__item a {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: color 0.3s ease;
    line-height: 1.5;
}

.footer-link__item a:hover {
    color: #fff;
}

.corp-info__list {
    list-style: none;
    margin: 0 0 16px 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.corp-info__item {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 0;
    line-height: 1.6;
}

.corp-info {
    display: flex;
    gap: 4px;
    margin: 0;
    padding: 0;
    align-items: baseline;
}

.corp-info.info-sep {
    margin-left: 24px;
}

.corp-info__title {
    font-size: 1.3rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.corp-info__contents {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.corp-email__list {
    list-style: none;
    margin: 0 0 16px 0;
    padding: 0;
}

.corp-email__item {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.footer-text {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.5);
    text-align: left;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* ============================================
   반응형 디자인
   ============================================ */
@media only screen and (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }

    .header-inner {
        padding: 0 30px;
    }

    .hero-title {
        font-size: 6rem;
    }

    .sponsorship-main-title {
        font-size: 3.6rem;
    }

    .sponsorship-subtitle {
        font-size: 1.6rem;
        margin-bottom: 60px;
    }

    .sponsorship-process {
        gap: 16px;
    }

    .process-step {
        padding: 24px;
        min-width: 180px;
    }

    .process-arrow {
        width: 30px;
        height: 30px;
    }

    .sponsorship-cards {
        gap: 24px;
    }

    .sponsor-card {
        padding: 40px 32px;
    }

    .sponsor-card-icon {
        width: 90px;
        height: 90px;
        margin-bottom: 24px;
    }

    .sponsor-card-icon svg {
        width: 56px;
        height: 56px;
    }

    .sponsorship-stats {
        gap: 40px;
        padding: 32px;
    }

    .sponsor-stat-value {
        font-size: 3.2rem;
    }

    .features-tabs {
        gap: 10px;
    }

    .feature-tab {
        padding: 14px 24px;
    }

    .feature-list-grid {
        gap: 14px;
    }

    .feature-list-item {
        padding: 20px;
    }

    .usecases-main-title {
        font-size: 3.6rem;
    }

    .usecase-tab {
        padding: 16px 24px;
        min-width: 120px;
    }

    .usecase-panel-inner {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 40px;
    }

    .usecase-visual {
        order: -1;
    }

    .admin-main-title {
        font-size: 3.6rem;
    }

    .admin-subtitle {
        font-size: 1.6rem;
        margin-bottom: 60px;
    }

    .admin-grid {
        gap: 24px;
    }

    .admin-card {
        padding: 30px;
    }

    .performance-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .teams-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    footer .inner {
        flex-direction: column;
        gap: 40px;
    }
}

@media only screen and (max-width: 768px) {
    .header-inner {
        height: 60px;
        padding: 0 20px;
    }

    .logo-img {
        width: 90px;
    }

    /* 데스크탑 네비게이션 숨김 */
    .main-nav {
        display: none;
    }

    /* 햄버거 버튼 표시 */
    .hamburger-btn {
        display: flex;
    }

    /* 모바일 네비게이션 표시 */
    .mobile-nav {
        display: flex;
        flex-direction: column;
    }

    .mobile-nav-overlay {
        display: block;
    }

    .hero-section {
        padding: 100px 20px 60px;
        min-height: 90vh;
    }

    .hero-title {
        font-size: 4rem;
        margin-bottom: 30px;
    }

    .hero-subtitle {
        font-size: 1.8rem;
        margin-bottom: 40px;
    }

    .sponsorship-section,
    .about-section,
    .features-section,
    .performance-section,
    .contact-section {
        padding: 80px 0;
    }

    .teams-section {
        padding: 80px 0 40px;
    }

    .section-heading {
        font-size: 1.2rem;
    }

    .sponsorship-main-title,
    .about-main-title {
        font-size: 3.2rem;
        margin-bottom: 16px;
    }

    .sponsorship-subtitle {
        font-size: 1.5rem;
        margin-bottom: 50px;
    }

    .sponsorship-process {
        flex-direction: column;
        gap: 20px;
    }

    .process-step {
        width: 100%;
        max-width: 100%;
        flex-direction: row;
        text-align: left;
        gap: 20px;
        padding: 24px;
    }

    .step-number {
        margin-bottom: 0;
    }

    .step-content {
        flex: 1;
    }

    .step-title {
        font-size: 1.6rem;
        margin-bottom: 6px;
    }

    .step-desc {
        font-size: 1.3rem;
    }

    .step-desc br {
        display: none;
    }

    .process-arrow {
        transform: rotate(90deg);
        width: 24px;
        height: 24px;
    }

    .sponsorship-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .sponsor-card {
        padding: 36px 28px;
    }

    .sponsor-card-icon {
        width: 80px;
        height: 80px;
        margin-bottom: 20px;
    }

    .sponsor-card-icon svg {
        width: 50px;
        height: 50px;
    }

    .sponsor-card-title {
        font-size: 2.2rem;
        margin-bottom: 24px;
    }

    .sponsor-benefits {
        gap: 10px;
        margin-bottom: 28px;
    }

    .sponsor-benefits li {
        padding: 10px 14px;
    }

    .benefit-icon {
        font-size: 1.6rem;
    }

    .benefit-text {
        font-size: 1.4rem;
    }

    .sponsorship-stats {
        flex-direction: column;
        gap: 24px;
        padding: 30px;
    }

    .sponsor-stat-value {
        font-size: 3rem;
    }

    .sponsor-stat-label {
        font-size: 1.3rem;
    }

    .about-description {
        font-size: 1.8rem;
    }

    .features-main-title {
        font-size: 3.2rem;
        margin-bottom: 40px;
    }

    .features-tabs {
        gap: 8px;
        margin-bottom: 40px;
    }

    .features-section.features-page .features-tabs {
        top: 60px;
        padding: 10px 0;
    }

    .feature-tab {
        padding: 12px 20px;
        gap: 8px;
    }

    .feature-tab-icon {
        font-size: 1.8rem;
    }

    .feature-tab-label {
        font-size: 1.4rem;
    }

    .feature-panel-header {
        padding: 24px;
        gap: 16px;
        margin-bottom: 24px;
    }

    .panel-header-icon {
        font-size: 3rem;
    }

    .panel-header-text h3 {
        font-size: 1.8rem;
    }

    .panel-header-text p {
        font-size: 1.3rem;
    }

    .feature-list-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .feature-list-item {
        padding: 20px;
        gap: 14px;
    }

    .feature-list-icon {
        font-size: 2rem;
        width: 44px;
        height: 44px;
    }

    .feature-list-title {
        font-size: 1.6rem;
    }

    .feature-list-desc {
        font-size: 1.35rem;
    }

    /* Feature Accordion - 768px */
    .feature-accordion {
        margin-bottom: 10px;
        border-radius: 10px;
    }

    .feature-accordion-header {
        padding: 14px 18px;
    }

    .accordion-title {
        font-size: 1.5rem;
        gap: 8px;
    }

    .accordion-count {
        font-size: 1.1rem;
        padding: 2px 8px;
    }

    .feature-accordion-inner {
        padding: 16px 18px;
    }

    /* 공통 기능 패널 - 768px에서 1열로 변경 */
    .feature-panel[data-feature-panel="common"] .feature-list-grid {
        grid-template-columns: 1fr;
    }

    /* Feature Category - 768px */
    .feature-category {
        margin-bottom: 36px;
    }

    .feature-category-header {
        gap: 10px;
        margin-bottom: 20px;
        padding-bottom: 12px;
    }

    .feature-category-header .category-icon {
        font-size: 2rem;
    }

    .feature-category-header .category-title {
        font-size: 1.7rem;
    }

    .feature-category-header .category-count {
        font-size: 1.2rem;
        padding: 3px 10px;
    }

    .feature-category-header.special {
        padding: 20px;
        margin-bottom: 24px;
    }

    .feature-category-header.special .category-icon {
        font-size: 3rem;
    }

    .feature-category-header.special .category-title {
        font-size: 1.8rem;
    }

    .feature-category-header.special .category-subtitle {
        font-size: 1.3rem;
    }

    /* CTA 버튼 - 모바일 */
    .cta-buttons {
        flex-direction: column;
        gap: 12px;
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }

    .cta-button {
        width: 100%;
        padding: 14px 24px;
        font-size: 1.5rem;
        text-align: center;
        border-radius: 12px;
    }

    .cta-button.primary {
        background: #fff;
        color: #1d4ed8;
        font-weight: 600;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    }

    .cta-button.secondary {
        background: rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(4px);
        border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .usecases-section {
        padding: 80px 0;
    }

    .usecases-main-title {
        font-size: 3.2rem;
        margin-bottom: 40px;
    }

    .usecases-tabs {
        gap: 10px;
        margin-bottom: 40px;
    }

    .usecase-tab {
        padding: 14px 20px;
        min-width: 100px;
        border-radius: 12px;
    }

    .tab-icon {
        font-size: 2.2rem;
    }

    .tab-label {
        font-size: 1.3rem;
    }

    .usecase-panel-inner {
        padding: 30px;
        border-radius: 16px;
    }

    .usecase-title {
        font-size: 2.4rem;
    }

    .usecase-subtitle {
        font-size: 1.6rem;
        margin-bottom: 24px;
    }

    .usecase-features li strong {
        font-size: 1.5rem;
    }

    .usecase-features li span {
        font-size: 1.3rem;
    }

    .usecase-mockup {
        max-width: 320px;
        padding: 24px;
    }

    .admin-section {
        padding: 80px 0;
    }

    .admin-main-title {
        font-size: 3.2rem;
    }

    .admin-subtitle {
        font-size: 1.5rem;
        margin-bottom: 50px;
    }

    .admin-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .admin-card {
        padding: 28px;
    }

    .admin-card-header {
        gap: 16px;
        margin-bottom: 24px;
    }

    .admin-icon-wrap {
        width: 50px;
        height: 50px;
    }

    .admin-icon-svg {
        width: 24px;
        height: 24px;
    }

    .admin-card-title {
        font-size: 1.9rem;
    }

    .performance-value {
        font-size: 5.6rem;
    }

    .teams-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .team-name {
        font-size: 1.6rem;
    }

    .contact-description {
        font-size: 1.8rem;
    }

    footer {
        padding: 50px 0 30px;
    }

    footer .inner {
        padding: 0 20px;
        flex-direction: column;
        gap: 40px;
    }

    .footer-left {
        min-width: auto;
        width: 100%;
    }

    .footer-right {
        width: 100%;
    }

    .footer-title {
        font-size: 1.5rem;
        margin-bottom: 20px;
    }

    .help-list {
        gap: 20px;
    }

    .help-item__title {
        font-size: 1.4rem;
    }

    .info-title {
        font-size: 1.2rem;
    }

    .info-time {
        font-size: 1.1rem;
    }

    .footer-link__list {
        gap: 12px 20px;
        margin-bottom: 20px;
    }

    .footer-link__item a {
        font-size: 1.3rem;
    }

    .corp-info__list {
        gap: 10px;
        margin-bottom: 14px;
    }

    .corp-info__item {
        flex-direction: column;
        gap: 8px;
    }

    .corp-info {
        flex-wrap: wrap;
    }

    .corp-info.info-sep {
        margin-left: 0;
        margin-top: 8px;
    }

    .corp-info__title,
    .corp-info__contents {
        font-size: 1.2rem;
    }

    .corp-email__item {
        font-size: 1.2rem;
    }

    .footer-text {
        font-size: 1.2rem;
    }
}

@media only screen and (max-width: 480px) {
    .container {
        padding: 0 20px;
    }

    .header-inner {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 3.2rem;
    }

    .hero-subtitle {
        font-size: 1.6rem;
    }

    .sponsorship-section {
        padding: 60px 0;
    }

    .sponsorship-main-title,
    .about-main-title,
    .features-main-title {
        font-size: 2.8rem;
    }

    .features-main-title {
        margin-bottom: 32px;
    }

    .features-tabs {
        gap: 6px;
        margin-bottom: 32px;
    }

    .feature-tab {
        padding: 10px 16px;
        gap: 6px;
        border-radius: 30px;
    }

    .feature-tab-icon {
        font-size: 1.6rem;
    }

    .feature-tab-label {
        font-size: 1.3rem;
    }

    .feature-panel-header {
        flex-direction: column;
        text-align: center;
        padding: 20px;
        gap: 12px;
    }

    .panel-header-icon {
        font-size: 2.8rem;
    }

    .panel-header-text h3 {
        font-size: 1.6rem;
    }

    .panel-header-text p {
        font-size: 1.2rem;
    }

    .feature-list-item {
        padding: 16px;
        gap: 12px;
    }

    .feature-list-icon {
        font-size: 1.8rem;
        width: 40px;
        height: 40px;
        border-radius: 10px;
    }

    .feature-list-title {
        font-size: 1.5rem;
        margin-bottom: 4px;
    }

    .feature-list-desc {
        font-size: 1.25rem;
    }

    /* Feature Accordion - 480px */
    .feature-accordion {
        margin-bottom: 8px;
        border-radius: 8px;
    }

    .feature-accordion-header {
        padding: 12px 14px;
    }

    .accordion-title {
        font-size: 1.4rem;
        gap: 6px;
    }

    .accordion-count {
        font-size: 1rem;
        padding: 1px 6px;
    }

    .accordion-icon {
        width: 20px;
        height: 20px;
    }

    .accordion-icon::before {
        width: 10px;
    }

    .accordion-icon::after {
        height: 10px;
    }

    .feature-accordion-inner {
        padding: 14px;
    }

    .feature-panel[data-feature-panel="common"] .feature-list-item {
        padding: 12px 14px;
        gap: 10px;
    }

    .feature-panel[data-feature-panel="common"] .feature-list-icon {
        width: 32px;
        height: 32px;
        font-size: 1.4rem;
    }

    .feature-panel[data-feature-panel="common"] .feature-list-title {
        font-size: 1.35rem;
    }

    .feature-panel[data-feature-panel="common"] .feature-list-desc {
        font-size: 1.15rem;
    }

    /* Feature Category - 480px */
    .feature-category {
        margin-bottom: 32px;
    }

    .feature-category-header {
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 16px;
        padding-bottom: 10px;
    }

    .feature-category-header .category-icon {
        font-size: 1.8rem;
    }

    .feature-category-header .category-title {
        font-size: 1.5rem;
    }

    .feature-category-header .category-count {
        font-size: 1.1rem;
        padding: 2px 8px;
    }

    .feature-category-header.special {
        flex-direction: column;
        text-align: center;
        padding: 16px;
        margin-bottom: 20px;
    }

    .feature-category-header.special .category-icon {
        font-size: 2.4rem;
    }

    .feature-category-header.special .category-title {
        font-size: 1.5rem;
    }

    .feature-category-header.special .category-subtitle {
        font-size: 1.2rem;
    }

    .sponsorship-subtitle {
        font-size: 1.4rem;
        margin-bottom: 40px;
    }

    .process-step {
        padding: 20px;
        gap: 16px;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1.6rem;
    }

    .step-title {
        font-size: 1.5rem;
    }

    .step-desc {
        font-size: 1.25rem;
    }

    .process-arrow {
        width: 20px;
        height: 20px;
    }

    .sponsor-card {
        padding: 32px 24px;
        border-radius: 20px;
    }

    .sponsor-card-icon {
        width: 72px;
        height: 72px;
        margin-bottom: 18px;
    }

    .sponsor-card-icon svg {
        width: 44px;
        height: 44px;
    }

    .sponsor-card-badge {
        font-size: 1.1rem;
        padding: 5px 12px;
    }

    .sponsor-card-title {
        font-size: 2rem;
        margin-bottom: 20px;
    }

    .sponsor-benefits {
        gap: 8px;
        margin-bottom: 24px;
    }

    .sponsor-benefits li {
        padding: 10px 12px;
        border-radius: 10px;
    }

    .benefit-icon {
        font-size: 1.5rem;
    }

    .benefit-text {
        font-size: 1.3rem;
    }

    .sponsor-cta {
        padding: 16px 24px;
        font-size: 1.5rem;
        border-radius: 12px;
    }

    .sponsorship-stats {
        padding: 24px;
        gap: 20px;
        border-radius: 16px;
    }

    .sponsor-stat-value {
        font-size: 2.6rem;
    }

    .sponsor-stat-label {
        font-size: 1.2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        padding: 32px 20px;
    }

    .feature-icon-wrap {
        width: 64px;
        height: 64px;
        margin-bottom: 20px;
        border-radius: 16px;
    }

    .feature-icon-svg {
        width: 34px;
        height: 34px;
    }

    .feature-title {
        font-size: 1.7rem;
    }

    .feature-text {
        font-size: 1.35rem;
    }

    .usecases-section {
        padding: 60px 0;
    }

    .usecases-main-title {
        font-size: 2.6rem;
        margin-bottom: 32px;
    }

    .usecases-tabs {
        gap: 8px;
        margin-bottom: 32px;
    }

    .usecase-tab {
        padding: 12px 14px;
        min-width: auto;
        flex: 1;
        border-radius: 10px;
    }

    .tab-icon {
        font-size: 1.8rem;
    }

    .tab-label {
        font-size: 1.15rem;
    }

    .usecase-panel-inner {
        padding: 24px;
        gap: 30px;
    }

    .usecase-title {
        font-size: 2rem;
    }

    .usecase-subtitle {
        font-size: 1.4rem;
        margin-bottom: 20px;
    }

    .usecase-features {
        gap: 16px;
    }

    .usecase-features li {
        padding-left: 20px;
    }

    .usecase-features li strong {
        font-size: 1.4rem;
    }

    .usecase-features li span {
        font-size: 1.25rem;
    }

    .usecase-mockup {
        max-width: 100%;
        padding: 20px;
        border-radius: 16px;
    }

    .mockup-field {
        height: 160px;
    }

    .player {
        width: 26px;
        height: 26px;
        font-size: 0.9rem;
    }

    .weather-icon {
        font-size: 2.8rem;
    }

    .weather-temp {
        font-size: 2rem;
    }

    .chat-bubble {
        font-size: 1.3rem;
        padding: 10px 14px;
    }

    .mockup-caption {
        font-size: 1.2rem;
        margin-top: 16px;
    }

    .admin-section {
        padding: 60px 0;
    }

    .admin-main-title {
        font-size: 2.6rem;
    }

    .admin-subtitle {
        font-size: 1.4rem;
        margin-bottom: 40px;
    }

    .admin-grid {
        gap: 16px;
    }

    .admin-card {
        padding: 24px;
        border-radius: 16px;
    }

    .admin-card-header {
        gap: 14px;
        margin-bottom: 20px;
    }

    .admin-icon-wrap {
        width: 46px;
        height: 46px;
        border-radius: 12px;
    }

    .admin-icon-svg {
        width: 22px;
        height: 22px;
    }

    .admin-card-title {
        font-size: 1.7rem;
    }

    .admin-card-body {
        gap: 20px;
    }

    .admin-card-desc {
        font-size: 1.3rem;
    }

    .role-badge {
        padding: 5px 12px;
        font-size: 1.2rem;
        min-width: 60px;
    }

    .role-desc {
        font-size: 1.3rem;
    }

    .stats-preview {
        padding: 16px;
        gap: 12px;
    }

    .stat-label {
        font-size: 1.3rem;
    }

    .stat-value {
        font-size: 1.4rem;
    }

    .stat-value.highlight {
        font-size: 1.6rem;
    }

    .noshow-item {
        padding: 12px 14px;
    }

    .noshow-icon {
        font-size: 1.8rem;
    }

    .noshow-type {
        font-size: 1.4rem;
    }

    .noshow-desc {
        font-size: 1.2rem;
    }

    .money-label {
        font-size: 1.3rem;
    }

    .money-value {
        font-size: 1.4rem;
    }

    .money-balance {
        padding: 14px;
    }

    .balance-label {
        font-size: 1.3rem;
    }

    .balance-value {
        font-size: 1.6rem;
    }

    .performance-value {
        font-size: 4.8rem;
    }

    .teams-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .team-name {
        font-size: 1.4rem;
    }

    footer {
        padding: 40px 0 24px;
    }

    footer .inner {
        padding: 0 16px;
        gap: 32px;
    }

    .footer-title {
        font-size: 1.4rem;
        margin-bottom: 18px;
    }

    .help-list {
        gap: 18px;
    }

    .help-item__title {
        font-size: 1.3rem;
    }

    .info-title {
        font-size: 1.15rem;
    }

    .info-time {
        font-size: 1.05rem;
    }

    .footer-link__list {
        flex-direction: column;
        gap: 10px;
        margin-bottom: 18px;
    }

    .footer-link__item a {
        font-size: 1.2rem;
    }

    .corp-info__list {
        gap: 8px;
        margin-bottom: 12px;
    }

    .corp-info__item {
        gap: 6px;
    }

    .corp-info.info-sep {
        margin-top: 6px;
    }

    .corp-info__title,
    .corp-info__contents {
        font-size: 1.15rem;
    }

    .corp-email__item {
        font-size: 1.15rem;
    }

    .footer-text {
        font-size: 1.15rem;
    }
}

/* ============================================
   이미지 Placeholder
   ============================================ */
.image-placeholder {
    background: #f0f0f0;
    border: 2px dashed #ccc;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 2s infinite;
}

.placeholder-text {
    font-size: 1.4rem;
    color: #999;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    z-index: 1;
    position: relative;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* ============================================
   스크롤 애니메이션
   ============================================ */
.fade-in,
.fade-in-delay,
.slide-up,
.slide-up-delay-1,
.slide-up-delay-2,
.slide-up-delay-3,
.slide-up-delay-4 {
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in {
    transform: translateY(20px);
}

.fade-in-delay {
    transform: translateY(20px);
    transition-delay: 0.2s;
}

.slide-up {
    transform: translateY(60px);
}

.slide-up-delay-1 {
    transform: translateY(60px);
    transition-delay: 0.1s;
}

.slide-up-delay-2 {
    transform: translateY(60px);
    transition-delay: 0.2s;
}

.slide-up-delay-3 {
    transform: translateY(60px);
    transition-delay: 0.3s;
}

.slide-up-delay-4 {
    transform: translateY(60px);
    transition-delay: 0.4s;
}

.fade-in.animate,
.fade-in-delay.animate,
.slide-up.animate,
.slide-up-delay-1.animate,
.slide-up-delay-2.animate,
.slide-up-delay-3.animate,
.slide-up-delay-4.animate {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   접근성 개선
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .fade-in,
    .fade-in-delay,
    .slide-up,
    .slide-up-delay-1,
    .slide-up-delay-2,
    .slide-up-delay-3,
    .slide-up-delay-4 {
        opacity: 1;
        transform: none;
    }
}

/* ============================================
   반응형 - 이미지 및 애니메이션
   ============================================ */
@media only screen and (max-width: 768px) {
    .hero-section {
        flex-direction: column;
    }
    
    .hero-image {
        margin-top: 40px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-text {
        text-align: center;
    }
    
    .feature-card .feature-title,
    .feature-card .feature-text {
        padding: 0 20px 30px;
    }
}

/* ============================================
   스포츠 기록 미리보기 카드
   ============================================ */
.sport-preview-wrap {
    display: flex;
    justify-content: center;
    margin: 8px 0 40px;
}

/* ── 러닝 공유 이미지 미리보기 ── */
.running-preview-card {
    width: 100%;
    max-width: 300px;
    aspect-ratio: 1 / 1;
    background: #1a1a1a;
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 28px;
    box-sizing: border-box;
    box-shadow: 0 8px 32px rgba(0,0,0,0.28);
}
.running-preview-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 60% 30%, #2a3a5c 0%, #0d0d0d 70%);
}
.running-preview-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 72%;
    background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.88));
}
.running-preview-stats {
    position: relative;
    z-index: 1;
}
.running-preview-main-val {
    font-size: 5.2rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    letter-spacing: -2px;
}
.running-preview-main-label {
    font-size: 1.3rem;
    color: rgba(255,255,255,0.65);
    margin-top: 4px;
    margin-bottom: 14px;
}
.running-preview-divider {
    height: 1px;
    background: rgba(255,255,255,0.2);
    margin-bottom: 14px;
}
.running-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
}
.running-preview-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.running-preview-stat-val {
    font-size: 1.7rem;
    font-weight: 700;
    color: #fff;
}
.running-preview-stat-label {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.55);
}
.running-preview-date {
    position: absolute;
    bottom: 20px;
    right: 20px;
    font-size: 1.1rem;
    color: rgba(255,255,255,0.4);
    z-index: 1;
}

/* ── 볼링 스코어 미리보기 ── */
.bowling-preview-card {
    width: 100%;
    max-width: 340px;
    background: #fff;
    border-radius: 16px;
    padding: 24px;
    box-sizing: border-box;
    box-shadow: 0 8px 32px rgba(0,0,0,0.10);
    border: 1px solid #f0f0f0;
}
.bowling-preview-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
}
.bowling-preview-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: #222;
}
.bowling-preview-games {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}
.bowling-preview-game {
    background: #f8f8f8;
    border-radius: 10px;
    padding: 12px 8px;
    text-align: center;
}
.bowling-preview-game-label {
    font-size: 1.1rem;
    color: #888;
    margin-bottom: 6px;
}
.bowling-preview-game-score {
    font-size: 2.4rem;
    font-weight: 800;
    color: #222;
    line-height: 1;
}
.bowling-preview-game-score.perfect {
    color: #ff6b00;
}
.bowling-preview-footer {
    display: flex;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid #f0f0f0;
}
.bowling-preview-avg-label {
    font-size: 1.2rem;
    color: #888;
}
.bowling-preview-avg-val {
    font-size: 1.6rem;
    font-weight: 700;
    color: #3677f6;
}
.bowling-preview-handicap {
    font-size: 1.2rem;
    color: #888;
    text-align: right;
}
.bowling-preview-handicap span {
    font-size: 1.4rem;
    font-weight: 700;
    color: #22c55e;
    display: block;
}

/* ── 축구 경기 기록 미리보기 ── */
.soccer-preview-card {
    width: 100%;
    max-width: 340px;
    background: #fff;
    border-radius: 16px;
    padding: 24px;
    box-sizing: border-box;
    box-shadow: 0 8px 32px rgba(0,0,0,0.10);
    border: 1px solid #f0f0f0;
}
.soccer-preview-score-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}
.soccer-preview-team {
    text-align: center;
    flex: 1;
}
.soccer-preview-team-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: #222;
    margin-bottom: 8px;
}
.soccer-preview-score {
    font-size: 4.8rem;
    font-weight: 900;
    color: #222;
    line-height: 1;
}
.soccer-preview-score.win {
    color: #3677f6;
}
.soccer-preview-vs {
    font-size: 1.4rem;
    color: #bbb;
    padding: 0 8px;
}
.soccer-preview-records {
    border-top: 1px solid #f0f0f0;
    padding-top: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.soccer-preview-record-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 1.3rem;
}
.soccer-preview-record-type {
    color: #888;
    white-space: nowrap;
    min-width: 32px;
}
.soccer-preview-record-names {
    color: #222;
    font-weight: 600;
}

/* feature-highlight: 러닝/자전거 탭 핵심 기능 강조 */
.usecase-features li strong.feature-highlight {
    color: #16a34a;
}

/* Running Mockup */
.running-mockup {
    padding: 20px;
}

.running-record-card {
    background: linear-gradient(135deg, #064e3b 0%, #065f46 100%);
    border-radius: 16px;
    padding: 20px;
    color: #fff;
}

.running-record-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.running-badge {
    font-size: 1.3rem;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 10px;
    border-radius: 20px;
}

.running-date {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
}

.running-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-bottom: 18px;
}

.running-stat {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    padding: 12px 8px;
    text-align: center;
}

.running-stat-value {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.1;
    color: #6ee7b7;
}

.running-stat-value small {
    font-size: 1.1rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
}

.running-stat-label {
    display: block;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 4px;
}

.running-monthly {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    padding: 12px 14px;
}

.running-monthly-label {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.7);
    display: block;
    margin-bottom: 10px;
}

.running-monthly-bars {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 40px;
    margin-bottom: 10px;
}

.running-bar {
    flex: 1;
    height: var(--h);
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px 4px 0 0;
    transition: background 0.2s;
}

.running-bar--current {
    background: #34d399;
}

.running-monthly-total {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
}

.running-monthly-total strong {
    color: #6ee7b7;
    font-size: 1.4rem;
}


/* ═══════════════════════════════════
   공통 토스트 알림 (.ext-toast)
═══════════════════════════════════ */
.ext-toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(12px);
    background: #1a1a1a;
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1.4rem;
    font-weight: 500;
    line-height: 1.5;
    white-space: pre-line;
    text-align: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity .25s, transform .25s;
    pointer-events: none;
    max-width: calc(100vw - 40px);
    box-shadow: 0 4px 20px rgba(0,0,0,.25);
}
.ext-toast--show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}