@charset "utf-8";

@media screen and (max-width: 640px) {

/*============================
Variables
============================*/

:root {--space-section: 4.5rem; --fs-title: clamp(1.5rem, 1.1rem + 2vw, 2rem); --header-height: 4.375rem;}

/*============================
Layout
============================*/

body { min-width: 0; }

/*============================
#header
============================*/

#header { z-index: 40; }
#header .inner { justify-content: space-between; gap: .625rem; }
#header .logo { margin-right: auto; }
#header .logo .image { height: 2.375rem; }
#header .globalNav { display: none; }
#header .docButton { min-width: 0; padding: .4375rem .625rem; font-size: .9125rem; }
#header .hamburger { display: inline-flex; align-items: center; justify-content: flex-end; width: 2.75rem; height: 2.75rem; padding-right: .25rem; }
#header .hamburger .line, #header .hamburger .line::before, #header .hamburger .line::after { display: block; width: 1.5rem; height: 2px; border-radius: 2px; background: var(--color-navy); transition: transform .35s cubic-bezier(.6, .05, .3, 1), opacity .2s; }
#header .hamburger .line { position: relative; }
#header .hamburger .line::before, #header .hamburger .line::after { content: ""; position: absolute; left: 0; }
#header .hamburger .line::before { top: -8px; }
#header .hamburger .line::after { top: 8px; }
#header .hamburger[aria-expanded="true"] .line { background: transparent; }
#header .hamburger[aria-expanded="true"] .line::before { transform: translateY(8px) rotate(45deg); }
#header .hamburger[aria-expanded="true"] .line::after { transform: translateY(-8px) rotate(-45deg); }

/*============================
#spNav（SP用メニュー）
============================*/

#spNav { display: block; position: fixed; inset: 0; z-index: 35; pointer-events: none; }
#spNav .overlay { display: block; position: absolute; inset: 0; background: rgba(10, 18, 40, .55); backdrop-filter: blur(3px); opacity: 0; transition: opacity .35s; }
#spNav .panel { display: flex; flex-direction: column; position: absolute; top: 0; right: 0; bottom: 0; width: min(86vw, 23.75rem); padding: 5.25rem 1.75rem var(--space-xl); overflow-y: auto; background: linear-gradient(160deg, var(--color-navy) 0%, var(--color-navyMid) 55%, var(--color-blueBright) 100%); color: var(--color-white); transform: translateX(100%); transition: transform .45s cubic-bezier(.7, 0, .2, 1); }
#spNav .panel::before { content: ""; position: absolute; right: -30%; bottom: -10%; width: 120%; aspect-ratio: 2 / 1; border-radius: 50% 50% 0 0; background: repeating-conic-gradient(from -90deg at 50% 100%, rgba(255, 255, 255, .06) 0 12deg, transparent 12deg 26deg); pointer-events: none; }
#spNav .kicker { display: flex; align-items: center; gap: .625rem; margin: 0 0 1.125rem; font-size: var(--fs-xxs); font-weight: 700; letter-spacing: .06em; color: var(--color-navKicker); }
#spNav .kicker::before { content: ""; width: 1.125rem; height: 1.5px; background: var(--color-white); }
#spNav .list .item { border-bottom: 1px solid rgba(255, 255, 255, .14); opacity: 0; transform: translateX(1.5rem); transition: opacity .35s, transform .45s cubic-bezier(.2, .8, .2, 1); }
#spNav .list .link { display: flex; flex-direction: column; position: relative; padding: .875rem 0; text-decoration: none; }
#spNav .list .link::after { content: "→"; position: absolute; top: 50%; right: 4px; font-family: var(--font-en); color: rgba(255, 255, 255, .5); transform: translateY(-50%); transition: transform .25s, color .25s; }
#spNav .list .link:hover::after, #spNav .list .link:active::after { color: var(--color-white); transform: translate(4px, -50%); }
#spNav .list .en { font-family: var(--font-en); font-size: .65625rem; font-weight: 700; letter-spacing: .22em; color: var(--color-yellow); }
#spNav .list .ja { font-size: var(--fs-xl); font-weight: 700; line-height: 1.5; letter-spacing: .06em; color: var(--color-white); }
#spNav .buttons { display: flex; flex-direction: column; gap: var(--space-sm); margin-top: 1.75rem; }
#spNav .buttons .md_btn { justify-content: center; min-width: 0; padding: .9375rem 1.25rem; font-size: var(--fs-base); }
#spNav .sub { display: flex; gap: 1.375rem; margin-top: auto; padding-top: 1.75rem; font-size: var(--fs-sm); font-weight: 700; }
#spNav .sub .link { color: var(--color-footerSub); text-decoration: none; }
#spNav.isOpen { pointer-events: auto; }
#spNav.isOpen .overlay { opacity: 1; }
#spNav.isOpen .panel { transform: none; }
#spNav.isOpen .list .item { opacity: 1; transform: none; }
#spNav.isOpen .list .item:nth-child(1) { transition-delay: .12s; }
#spNav.isOpen .list .item:nth-child(2) { transition-delay: .17s; }
#spNav.isOpen .list .item:nth-child(3) { transition-delay: .22s; }
#spNav.isOpen .list .item:nth-child(4) { transition-delay: .27s; }
#spNav.isOpen .list .item:nth-child(5) { transition-delay: .32s; }

/*============================
#footer
============================*/

#footer .name { font-size: .78125rem; white-space: normal; }
#footer .cert .image { height: 3.25rem; }
#footer .footerNav .list { gap: .625rem 1.375rem; font-size: var(--fs-sm); }

}

/* I案共通：情報を絞ったコンパクトなサイドメニュー */
@media screen and (max-width: 640px) {
#spNav .panel { background: linear-gradient(155deg, #223c58 0%, #355477 60%, #536593 100%); padding: 5.5rem 1.5rem 2rem; overflow-x: hidden; }
#spNav .panel::before { content: none; }
#spNav .kicker { font-size: .625rem; font-weight: 500; line-height: 1.8; letter-spacing: .025em; color: #c6d8e8; gap: .5rem; }
#spNav .kicker::before { width: .8rem; flex-shrink: 0; background: #a6cce1; }
#spNav .list .link { gap: .25rem; padding: 1rem 0; }
#spNav .list .en { font-size: .5625rem; letter-spacing: .16em; font-weight: 500; color: #a9cee4; }
#spNav .list .ja { font-size: 1.0625rem; font-weight: 500; letter-spacing: .045em; }
#spNav .list .link::after { font-size: 1rem; font-weight: 400; }
#spNav .buttons { gap: .75rem; margin-top: 1.5rem; }
#spNav .buttons .md_btn { font-size: .875rem; font-weight: 500; padding: .875rem 1.1rem; border-radius: 3px; }
#spNav .buttons .md_btn_mark { background: var(--grad-main); color: #fff; border: 1px solid transparent; }
#spNav .buttons .md_btn_line { border-color: rgba(221,234,246,.5); color: #fff; background: transparent; }
#spNav .sub { margin-top: 1.25rem; padding-top: 0; gap: 1.25rem; flex-wrap: wrap; font-size: .75rem; font-weight: 400; }
#spNav .sub .link { color: #d6e4ef; }
}

@media screen and (max-width: 640px) {
#spNav .policyLinks { display: flex; flex-direction: column; gap: .875rem; margin-top: auto; padding-top: 2rem; }
#spNav .policyLinks::before { content: ''; display: block; height: 1px; background: rgba(218,232,244,.22); margin-bottom: .375rem; }
#spNav .policyLinks a { color: #c5d6e5; font-size: .6875rem; font-weight: 400; line-height: 1.5; letter-spacing: .025em; text-decoration: none; }
#spNav .policyLinks a:hover { color: #fff; text-decoration: underline; text-underline-offset: .25em; }
}