:root {
    --primary-color: #2ea879; /* 爽やかな緑 */
    --secondary-color: #3fa1cc; /* 爽やかなブルー */
    --accent-color: #e6f7f1;
    --text-main: #333333;
    --text-light: #666666;
    --bg-light: #f9fdfb;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --color-primary: var(--primary-color);
    --color-secondary: var(--secondary-color);
    --color-text-main: var(--text-main);
    --color-text-light: var(--text-light);
    --color-bg-base: var(--bg-light);
    --color-bg-panel: var(--white);
    --color-border: var(--border-color);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    line-height: 1.8;
    padding-bottom: 70px; /* スマホ用固定バーの余白 */
}
h1, h2, h3, .serif {
    font-family: 'Noto Serif JP', serif;
}
a {
    text-decoration: none;
    color: inherit;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header-logo {
    display: flex;
    flex-direction: column;
}
.header-logo .header-logo-mark {
    width: clamp(180px, 22vw, 260px);
    height: auto;
    margin-bottom: 8px;
}
.header-logo .corp {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-bottom: 2px;
}
.header-logo .clinic-name {
    font-size: 1.4rem;
    color: var(--color-primary);
    font-weight: 500;
}
.header-nav {
    display: none;
}

.mobile-header-actions {
    display: flex;
    align-items: center;
    gap: 0;
}

.hamburger-btn {
    width: 46px;
    height: 46px;
    border: none;
    border-radius: 0;
    background: transparent;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.hamburger-btn span {
    width: 22px;
    height: 2.5px;
    background: var(--text-main);
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.mobile-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.25);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1100;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: min(86vw, 320px);
    height: 100dvh;
    background: var(--bg-light);
    color: var(--text-main);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1200;
    padding: 18px 16px 32px;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.12);
    display: flex;
    flex-direction: column;
}

.mobile-drawer-close {
    border: none;
    background: transparent;
    color: var(--text-main);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    margin-left: auto;
    display: block;
}

.mobile-drawer-nav {
    margin-top: 22px;
    display: grid;
    gap: 14px;
}

.mobile-drawer-nav a {
    color: var(--text-main);
    font-size: 1rem;
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.mobile-drawer-line-btn {
    margin-top: 32px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: #ffffff !important;
    border-radius: 24px;
    padding: 12px 14px;
    font-size: 0.95rem;
    font-weight: 700;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

body.mobile-menu-open {
    overflow: hidden;
}

body.mobile-menu-open .mobile-drawer {
    transform: translateX(0);
}

body.mobile-menu-open .mobile-drawer-overlay {
    opacity: 1;
    pointer-events: auto;
}

body.mobile-menu-open .hamburger-btn span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

body.mobile-menu-open .hamburger-btn span:nth-child(2) {
    opacity: 0;
}

body.mobile-menu-open .hamburger-btn span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
    .mobile-header-actions,
    .mobile-drawer,
    .mobile-drawer-overlay {
        display: none;
    }
    .header-nav {
        display: flex;
        gap: 32px;
        align-items: center;
    }
    .header-nav a {
        font-size: 0.85rem;
        font-weight: 500;
    }
    .header-nav a:hover {
        color: var(--color-primary);
    }
    .btn-line-pc {
        background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
        color: #fff !important;
        padding: 10px 24px;
        border-radius: 30px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .btn-line-pc:hover {
        box-shadow: 0 4px 15px rgba(46, 168, 121, 0.3);
        transform: translateY(-2px);
    }
    body { padding-bottom: 0; }
}

/* Hero Section */
.hero {
    margin-top: 70px;
    position: relative;
    height: 70vh;
    background: linear-gradient(rgba(255,255,255,0.3), rgba(255,255,255,0.8)), url('https://images.unsplash.com/photo-1612349317150-e410f624c427?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
}
.hero-content h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-shadow: 1px 1px 2px rgba(255,255,255,0.8);
}
.hero-content p {
    font-size: 1.1rem;
    color: var(--text-main);
    font-weight: 500;
}
.latest-info-btn {
        background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
        color: #fff !important;
        padding: 10px 24px;
        border-radius: 30px;
        display: flex;
        align-items: center;
        gap: 8px;
        display: inline-flex;
        width: auto;
        padding: 10px 24px;
        margin-top: 50px;
    }
.latest-info-btn:hover {
        box-shadow: 0 4px 15px rgba(46, 168, 121, 0.3);
        transform: translateY(-2px);
    }

/* Section Settings */
section {
    padding: 80px 5%;
    max-width: 1200px;
    margin: 0 auto;
}
.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    color: var(--primary-color);
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background-color: var(--secondary-color);
    margin: 15px auto 0;
}

/* Reasons / Strengths */
.reasons-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}
.reason-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    border-top: 4px solid var(--primary-color);
}
.reason-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}
.reason-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

/* Branches */
.branches-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}
.branch-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
    /* ここから追加：カード全体を縦のフレックスコンテナにする */
    display: flex;
    flex-direction: column;
    /* ここまで追加 */
}
.branch-card:hover {
    transform: translateY(-5px);
}
.branch-img {
    height: 200px;
    background-color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 3rem;
}
.branch-info {
    padding: 30px;
    /* ここから追加：情報エリアも縦のフレックスにし、余白を埋めるようにする */
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    /* ここまで追加 */
}
.branch-name {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 10px;
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 10px;
}
.branch-target {
    font-size: 0.9rem;
    color: var(--secondary-color);
    font-weight: bold;
    margin-bottom: 15px;
}
.branch-desc {
    font-size: 0.95rem;
    margin-bottom: 20px;
}
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}
.tag {
    background: var(--accent-color);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}
.btn-detail {
    display: block;
    text-align: center;
    background: var(--primary-color);
    color: var(--white) !important;
    border: 1px solid var(--primary-color);
    padding: 12px 0;
    border-radius: 30px;
    font-weight: bold;
    transition: background 0.3s;
    /* ここを追加：上部のマージンを自動にして一番下に押し下げる */
    margin-top: auto; 
}
.btn-detail:hover {
    background: #248f65;
}
.btn-reserve {
    display: block;
    text-align: center;
    background: var(--white);
    border: 2px solid var(--primary-color);
    color: var(--primary-color) !important;
    padding: 12px 0;
    border-radius: 30px;
    font-weight: bold;
    transition: background 0.3s;
    margin-top: 12px;
}
.btn-reserve:hover {
    border: 2px solid #248f65;
    color: #248f65;
}

/* Medical Info / FAQ */
.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}
.faq-q {
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    cursor: pointer;
}
.faq-q::before {
    content: 'Q.';
    font-family: 'Noto Serif JP', serif;
    font-size: 1.4rem;
    margin-right: 15px;
    color: var(--secondary-color);
}
.faq-a {
    margin-top: 15px;
    padding-left: 35px;
    color: var(--text-light);
    display: flex;
}
.faq-a::before {
    content: 'A.';
    font-family: 'Noto Serif JP', serif;
    font-size: 1.4rem;
    margin-right: 15px;
    color: var(--primary-color);
    line-height: 1.2;
}

/* Instagram Feed */
.column-container {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    padding: 30px;
    overflow: hidden;
}

.column-container #sb_instagram,
.column-container .sbi {
    margin: 0 auto;
}

.column-container .sbi_load_btn,
.column-container .sbi_follow_btn a {
    border-radius: 30px !important;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: var(--white);
    text-align: center;
    padding: 40px 20px 100px;
}

/* Mobile Floating Reservation Bar */
.mobile-bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    border-top: 1px solid var(--border-color);
    display: flex;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}
.bar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 0;
    text-decoration: none;
    color: var(--text-main);
    min-height: 60px; 
    border-right: 1px solid var(--border-color);
    transition: background-color 0.2s;
}
.bar-item:last-child {
    border-right: none;
}
.bar-item:active {
    background-color: var(--accent-color);
}
.bar-item i {
    font-size: 1.4rem;
    margin-bottom: 4px;
}
.bar-item span {
    font-size: 0.65rem;
    font-weight: bold;
}
.bar-item.clinic {
    color: var(--secondary-color);
}
.bar-item.line {
    color: #06C755;
}
.bar-item.kireipass {
    color: #ff6b81;
}

/* Responsive Design */
@media (min-width: 768px) {
    .pc { display:block; }
    .sp { display:none; }
    .btn-line-pc {
        background-color: #06C755;
        color: var(--white) !important;
        padding: 10px 20px;
        border-radius: 30px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .reasons-grid, .branches-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .mobile-bottom-bar {
        display: none; 
    }
    body {
        padding-bottom: 0;
    }
    footer {
        padding-bottom: 40px;
    }
    .hero-content h2 {
        font-size: 3rem;
    }
}
@media (max-width: 768px) {
    .pc { display:none; }
    .sp { display:block; }

    header {
        padding: 12px 16px;
    }
    .header-logo .header-logo-mark {
        width: clamp(150px, 48vw, 220px);
        margin-bottom: 0;
    }
}