/* =========================================================
   大原キャリアナビ 歳末キャンペーン / css/style.css
   構造： index.html から <link rel="stylesheet" href="css/style.css">
   画像： images/ に格納、background-image では ../images/ を参照
   ========================================================= */

:root {
  /* 寒色パレット（冬） */
  --ice-1:      #f6f9fd;
  --ice-2:      #e7eff9;
  --ice-3:      #cfe0f3;
  --frost-1:    #9cbedd;
  --frost-2:    #4a76ad;   /* 濃い */
  --frost-3:    #2c4a7f;
  --navy-deep:  #18355c;
  --plans-bg-1: #1f4685;   /* 期間限定プラン背景（濃め） */
  --plans-bg-2: #143268;

  /* 年末のあたたかみ */
  --gold:       #f0b938;
  --gold-soft:  #ffd966;
  --red-2:      #c2351c;

  /* 汎用 */
  --white:      #ffffff;
  --text:       #18355c;
  --muted:      #57607a;
  --border:     #d9e3ef;
  --radius:     16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--text);
  background: var(--ice-1);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.container--narrow { max-width: 720px; }

/* ---------- 降雪アニメーション ---------- */
.snow-layer { position: fixed; inset: 0; pointer-events: none; z-index: 2; overflow: hidden; }
.snowflake {
  position: absolute;
  top: -40px;
  color: var(--white);
  text-shadow: 0 0 6px rgba(255, 255, 255, .8);
  animation: snowfall linear infinite;
  opacity: .8;
}
.s1  { left: 3%;  font-size: 14px; animation-duration: 14s; animation-delay: -1s; }
.s2  { left: 10%; font-size: 22px; animation-duration: 18s; animation-delay: -5s;  opacity: .9; }
.s3  { left: 17%; font-size: 10px; animation-duration: 11s; animation-delay: -3s;  opacity: .6; }
.s4  { left: 24%; font-size: 18px; animation-duration: 16s; animation-delay: -8s; }
.s5  { left: 31%; font-size: 12px; animation-duration: 13s; animation-delay: -2s;  opacity: .55; }
.s6  { left: 38%; font-size: 26px; animation-duration: 20s; animation-delay: -10s; opacity: .9; }
.s7  { left: 45%; font-size: 8px;  animation-duration: 9s;  animation-delay: -4s;  opacity: .4; }
.s8  { left: 52%; font-size: 16px; animation-duration: 15s; animation-delay: -6s; }
.s9  { left: 59%; font-size: 20px; animation-duration: 17s; animation-delay: -7s;  opacity: .8; }
.s10 { left: 66%; font-size: 11px; animation-duration: 12s; animation-delay: -1.5s; opacity: .55; }
.s11 { left: 73%; font-size: 24px; animation-duration: 19s; animation-delay: -9s;  opacity: .9; }
.s12 { left: 80%; font-size: 9px;  animation-duration: 10s; animation-delay: -3.5s; opacity: .5; }
.s13 { left: 87%; font-size: 15px; animation-duration: 14s; animation-delay: -2.5s; }
.s14 { left: 91%; font-size: 19px; animation-duration: 16s; animation-delay: -6.5s; opacity: .8; }
.s15 { left: 96%; font-size: 7px;  animation-duration: 10s; animation-delay: -4.5s; opacity: .5; }
.s16 { left: 7%;  font-size: 13px; animation-duration: 13s; animation-delay: -5.5s; }
.s17 { left: 28%; font-size: 21px; animation-duration: 17s; animation-delay: -7.5s; opacity: .85; }
.s18 { left: 55%; font-size: 9px;  animation-duration: 11s; animation-delay: -8.5s; opacity: .6; }
.s19 { left: 70%; font-size: 17px; animation-duration: 15s; animation-delay: -3s; }
.s20 { left: 88%; font-size: 12px; animation-duration: 13s; animation-delay: -1s;  opacity: .6; }
@keyframes snowfall {
  0%   { transform: translateY(-40px) translateX(0) rotate(0deg); }
  50%  { transform: translateY(50vh) translateX(20px) rotate(180deg); }
  100% { transform: translateY(110vh) translateX(0) rotate(360deg); }
}

/* ---------- ボタン ---------- */
.btn {
  display: inline-block;
  text-align: center;
  font-weight: 700;
  border-radius: 999px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: .02em;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--red-2) 0%, #d65a40 100%);
  color: var(--white);
  padding: 14px 34px;
  box-shadow: 0 8px 20px rgba(194, 53, 28, .35), inset 0 1px 0 rgba(255, 255, 255, .25);
}
.btn-primary:hover { box-shadow: 0 14px 28px rgba(194, 53, 28, .5); }
.btn-large { padding: 18px 50px; font-size: 1.08rem; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .95);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 10px rgba(24, 53, 92, .08);
}
.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.logo-link { display: inline-flex; align-items: center; }
.logo-img { height: 30px; width: auto; }
.logo-fallback { font-size: 1.05rem; font-weight: 900; color: var(--navy-deep); }

.header-nav {
  display: flex;
  gap: 18px;
  align-items: center;
  margin-left: 12px;
}
.header-nav a {
  font-size: .9rem;
  font-weight: 700;
  color: var(--navy-deep);
  padding: 6px 4px;
  position: relative;
}
.header-nav a::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  bottom: 0;
  height: 2px;
  background: var(--frost-2);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .25s ease;
}
.header-nav a:hover::after { transform: scaleX(1); }

.btn-header {
  margin-left: auto;
  background: linear-gradient(135deg, var(--red-2) 0%, #d65a40 100%);
  color: var(--white);
  padding: 10px 22px;
  font-size: .85rem;
  box-shadow: 0 4px 10px rgba(194, 53, 28, .3);
}

/* ---------- ヒーロー ---------- */
.hero {
  position: relative;
  isolation: isolate;
  color: var(--white);
  padding: 96px 0 88px;
  overflow: hidden;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(192, 218, 240, .35), transparent 55%),
    radial-gradient(900px 600px at 0% 110%, rgba(94, 137, 189, .35), transparent 55%),
    linear-gradient(180deg, var(--frost-3) 0%, var(--frost-2) 45%, var(--frost-1) 78%, var(--ice-3) 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(160deg, rgba(255, 255, 255, .12) 0%, transparent 40%),
    linear-gradient(-160deg, rgba(255, 255, 255, .10) 0%, transparent 50%);
  z-index: -1;
}
.hero::after {
  content: "❄";
  position: absolute;
  top: 16px;
  right: 6%;
  font-size: 5rem;
  opacity: .18;
  z-index: -1;
  transform: rotate(15deg);
}

.hero-inner { max-width: 880px; margin: 0 auto; padding: 0 20px; text-align: center; position: relative; z-index: 1; }

.hero-title {
  font-weight: 900;
  line-height: 1.5;
  letter-spacing: .04em;
  margin-bottom: 36px;
  text-shadow: 0 3px 12px rgba(0, 0, 0, .25);
}
.hero-title__line {
  display: block;
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  font-weight: 700;
  margin-bottom: 22px;
  color: var(--gold-soft);
}
.hero-title__main, .hero-title__campaign {
  display: block;
  font-size: clamp(2rem, 6vw, 3.2rem);
  line-height: 1.4;
  margin-bottom: 4px;
}
.campaign-underline {
  position: relative;
  display: inline-block;
  padding: 4px 14px;
  z-index: 1;
}
.campaign-underline::before {
  content: "";
  position: absolute;
  left: -6px;
  right: -6px;
  bottom: 4px;
  height: 18px;
  background: linear-gradient(95deg, var(--red-2) 0%, #d65a40 100%);
  border-radius: 4px;
  z-index: -1;
  box-shadow: 0 6px 20px rgba(194, 53, 28, .45);
}
.campaign-underline::after {
  content: "";
  position: absolute;
  left: -6px;
  right: -6px;
  bottom: 0;
  height: 4px;
  background: linear-gradient(95deg, var(--gold) 0%, var(--gold-soft) 100%);
  border-radius: 2px;
  z-index: -1;
}
/* 期間：背景色はなし、白で読みやすく（白フチつき） */
.hero-title__period {
  display: inline-block;
  font-family: "Courier New", monospace;
  font-weight: 900;
  font-size: clamp(1.6rem, 5vw, 2.6rem);
  letter-spacing: .12em;
  color: var(--gold-soft);
  margin-top: 18px;
  padding: 6px 16px;
  text-shadow:
    -2px -2px 0 var(--frost-3),
     2px -2px 0 var(--frost-3),
    -2px  2px 0 var(--frost-3),
     2px  2px 0 var(--frost-3),
    0 -3px 0 var(--frost-3),
    0  3px 0 var(--frost-3),
    -3px 0 0 var(--frost-3),
     3px 0 0 var(--frost-3);
}

.hero-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }

/* ヒーロー サブコピー【中】・リード文【小】 */
.hero-sub {
  font-size: clamp(1.15rem, 2.8vw, 1.5rem);
  font-weight: 900;
  letter-spacing: .06em;
  line-height: 1.7;
  color: var(--white);
  text-shadow: 0 2px 10px rgba(0, 0, 0, .25);
}
.hero-lead {
  font-size: clamp(.9rem, 2vw, 1.02rem);
  font-weight: 500;
  line-height: 1.95;
  color: rgba(255, 255, 255, .92);
  max-width: 640px;
  margin: 14px auto 0;
  text-shadow: 0 1px 8px rgba(0, 0, 0, .2);
}

/* ---------- セクション共通 ---------- */
.section { padding: 80px 0; position: relative; }
.section--overview {
  background:
    radial-gradient(700px 320px at 100% 0%, rgba(207, 224, 243, .4), transparent 55%),
    var(--ice-1);
}
.section--plans {
  /* ご指示どおり背景はもう少し濃いめに */
  background:
    radial-gradient(700px 320px at 100% 0%, rgba(255, 217, 102, .25), transparent 55%),
    radial-gradient(900px 380px at 0% 100%, rgba(143, 218, 239, .18), transparent 55%),
    linear-gradient(160deg, var(--plans-bg-1) 0%, var(--plans-bg-2) 100%);
  color: var(--white);
}
.section--plans .section-heading { color: var(--white); }
.section--plans .eyebrow { color: var(--gold-soft); }
.section--plans .section-lead { color: rgba(255, 255, 255, .88); }

.section--topics {
  background:
    radial-gradient(900px 420px at 50% 0%, rgba(255, 255, 255, .65), transparent 60%),
    var(--ice-1);
}
.section--flow { background: var(--white); }
.section--contact {
  background:
    radial-gradient(700px 320px at 15% 0%, rgba(255, 217, 102, .25), transparent 55%),
    radial-gradient(900px 500px at 110% 100%, rgba(207, 224, 243, .6), transparent 55%),
    var(--ice-2);
}

/* 「＼ TITLE ／」＋「❄ 大見出し ❆」を2行で */
.section-head { text-align: center; margin-bottom: 44px; }
.eyebrow {
  display: block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .28em;
  color: var(--frost-2);
  margin-bottom: 14px;
  text-align: center;
}
.eyebrow .kakko { color: var(--gold); margin: 0 4px; }
.section-heading {
  font-size: clamp(1.45rem, 3.4vw, 2rem);
  font-weight: 900;
  color: var(--navy-deep);
  line-height: 1.5;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  text-align: center;
}
.section-heading .snow {
  display: inline-block;
  color: var(--frost-1);
  font-size: .9em;
  transform: rotate(8deg);
}
.section-heading .snow:last-child { transform: rotate(-12deg); }
.section-lead { margin-top: 12px; font-size: .98rem; color: var(--muted); }

/* ---------- キャンペーン概要（2列・項目名ベタ塗り） ---------- */
.overview-list {
  background: rgba(255, 255, 255, .92);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(24, 53, 92, .08);
  backdrop-filter: blur(6px);
}
.overview-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  border-bottom: 1px solid var(--border);
}
.overview-row:last-child { border-bottom: none; }
.overview-row dt {
  background: linear-gradient(135deg, var(--frost-2) 0%, var(--frost-3) 100%);
  color: var(--white);
  font-weight: 900;
  font-size: 1rem;
  padding: 22px 22px;
  display: flex;
  align-items: center;
}
.overview-row dd {
  background: rgba(255, 255, 255, .98);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  padding: 22px 26px;
  display: flex;
  align-items: center;
}
.overview-row dd strong { color: var(--navy-deep); font-weight: 900; }
.overview-row dd a { color: var(--frost-2); font-weight: 700; text-decoration: underline; }
.note { display: inline-block; font-size: .82rem; color: var(--muted); margin-top: 4px; }
.note--newline { display: block; margin-top: 6px; }

/* ---------- 概要に統合したABOUT ---------- */
.about-merged {
  margin-top: 36px;
  background: rgba(255, 255, 255, .75);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: 0 6px 16px rgba(24, 53, 92, .06);
  backdrop-filter: blur(6px);
}
.about-heading {
  text-align: center;
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--navy-deep);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px dashed rgba(94, 137, 189, .5);
}
.about-text {
  text-align: center;
  font-size: 1rem;
  line-height: 1.95;
  color: var(--text);
  margin-bottom: 22px;
}
.mechanism { margin: 0 auto 22px; text-align: center; }
.mechanism img {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 6px 16px rgba(24, 53, 92, .08);
}
.about-mechanism {
  font-size: .82rem;
  line-height: 1.85;
  color: var(--muted);
  max-width: 760px;
  margin: 0 auto;
}

/* ---------- 期間限定プラン ---------- */
.plan-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 920px;
  margin: 0 auto;
}
.plan {
  background: rgba(255, 255, 255, .98);
  color: var(--text);
  border-radius: var(--radius);
  padding: 36px 30px 30px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 18px 40px rgba(0, 0, 0, .25);
  border: 2px solid rgba(255, 255, 255, .5);
}
.plan-ribbon {
  margin: -8px -10px 10px;
  text-align: center;
  pointer-events: none;
}
.plan-ribbon__inner {
  display: inline-block;
  padding: 7px 22px;
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .18em;
  color: #ffffff;
  background: linear-gradient(90deg, #c2351c 0%, #e94325 50%, #c2351c 100%);
  border: 1.5px solid #ffd966;
  border-radius: 999px;
  box-shadow: 0 3px 0 rgba(0, 0, 0, .15), inset 0 0 0 2px rgba(255, 255, 255, .18);
  text-shadow: 0 1px 2px rgba(0, 0, 0, .25);
}
.plan-ribbon--long .plan-ribbon__inner {
  background: linear-gradient(90deg, #18355c 0%, #2c4a7f 50%, #18355c 100%);
}

.plan-eyebrow {
  font-size: .8rem;
  font-weight: 900;
  letter-spacing: .26em;
  color: var(--frost-2);
  text-align: center;
}
.plan-regular {
  text-align: center;
  font-size: .9rem;
  font-weight: 700;
  color: var(--muted);
  margin-top: 10px;
  line-height: 1.85;
}
.strike { display: inline-block; font-weight: 900; color: var(--muted); }
.off-label {
  text-align: center;
  font-size: 1rem;
  font-weight: 900;
  color: var(--red-2);
  margin: 4px 0 14px;
}
.off-label strong {
  background: linear-gradient(135deg, var(--red-2) 0%, #d65a40 100%);
  color: var(--white);
  padding: 4px 14px;
  border-radius: 999px;
  display: inline-block;
  margin-left: 4px;
}
.duration-label {
  text-align: center;
  font-size: .82rem;
  font-weight: 900;
  color: var(--navy-deep);
  letter-spacing: .12em;
  margin-bottom: 4px;
}
.duration-number {
  text-align: center;
  color: var(--navy-deep);
  font-weight: 900;
  line-height: 1;
  margin-bottom: 18px;
}
.duration-number .big-num {
  font-size: clamp(3.6rem, 7vw, 5rem);
  color: var(--red-2);
  line-height: 1;
  display: inline-block;
  margin-right: 6px;
}
.duration-number .unit { font-size: 1.2rem; }
.price-label {
  text-align: center;
  font-size: .82rem;
  font-weight: 900;
  color: var(--navy-deep);
  letter-spacing: .12em;
  margin-bottom: 4px;
}
.campaign-price { text-align: center; font-weight: 900; color: var(--red-2); line-height: 1.1; margin-bottom: 18px; }
.campaign-price .big-yen-big {
  font-size: clamp(2.6rem, 6vw, 3.6rem);
  letter-spacing: .01em;
  margin-right: 6px;
}
.campaign-price .yen-sm { font-size: 1.05rem; font-weight: 700; }
.plan-desc { font-size: .88rem; line-height: 1.85; color: var(--text); margin-top: 6px; }
.plan-cta-row { text-align: center; margin: 32px 0 12px; }
.price-note { text-align: center; font-size: .82rem; color: rgba(255, 255, 255, .85); margin-top: 16px; line-height: 1.85; }

/* ---------- 採用TOPICS（3カード同一サイズ） ---------- */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.topic-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 20px rgba(24, 53, 92, .08);
  transition: transform .25s ease, box-shadow .25s ease;
}
.topic-card:hover { transform: translateY(-4px); box-shadow: 0 18px 36px rgba(24, 53, 92, .16); }

.topic-img {
  margin: 0;
  background: var(--ice-3);
  overflow: hidden;
  aspect-ratio: 16/10;
}
.topic-img img { width: 100%; height: 100%; object-fit: cover; }
/* 03のポートレート画像も同じ比率に揃える（object-cover） */
.topic-img.topic-img--portrait { aspect-ratio: 16/10; }

.topic-body { padding: 22px 22px 24px; flex: 1; }
.topic-card h3 {
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--navy-deep);
  line-height: 1.55;
  margin-bottom: 10px;
}
.topic-card p { font-size: .85rem; color: var(--muted); line-height: 1.85; }
.campus-heading {
  font-size: .78rem;
  font-weight: 900;
  color: var(--frost-3);
  letter-spacing: .14em;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
}
.campus-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 14px;
  margin-top: 8px;
}
.campus-list li {
  font-size: .85rem;
  color: var(--navy-deep);
  font-weight: 700;
  padding-left: 18px;
  position: relative;
}
.campus-list li::before {
  content: "❆";
  position: absolute;
  left: 0;
  color: var(--frost-1);
  font-size: .8rem;
  top: 2px;
}
.topic-note {
  margin-top: 24px;
  font-size: .78rem;
  color: var(--muted);
  line-height: 1.85;
  background: rgba(255, 255, 255, .65);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
}

/* ---------- お申込みの流れ（縦型） ---------- */
.vflow {
  display: grid;
  gap: 18px;
  margin-top: 12px;
}
.vflow-item {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 4px solid var(--frost-2);
  border-radius: 14px;
  padding: 22px 24px;
  position: relative;
  box-shadow: 0 6px 16px rgba(24, 53, 92, .06);
}
.vflow-item::after {
  content: "▼";
  position: absolute;
  bottom: -16px;
  left: 40px;
  color: var(--frost-2);
  font-size: .7rem;
}
.vflow-item:last-child::after { display: none; }
.vflow-num {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--frost-2) 0%, var(--frost-3) 100%);
  color: var(--white);
  font-weight: 900;
  border-radius: 12px;
  padding: 12px 8px;
  font-size: .7rem;
  letter-spacing: .14em;
  align-self: flex-start;
  line-height: 1.2;
}
.vflow-num strong { font-size: 1.4rem; margin-top: 2px; }
.vflow-body h3 { font-size: 1.05rem; font-weight: 900; color: var(--navy-deep); margin-bottom: 6px; line-height: 1.5; }
.vflow-body p { font-size: .9rem; color: var(--muted); line-height: 1.85; }
.vflow-link {
  display: inline-block;
  margin-top: 8px;
  font-size: .85rem;
  font-weight: 700;
  color: var(--frost-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.vflow-link:hover { color: var(--red-2); }

/* ---------- お問い合わせ（中央寄せ） ---------- */
.contact-center {
  background: rgba(255, 255, 255, .94);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px 28px;
  box-shadow: 0 12px 28px rgba(24, 53, 92, .10);
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.contact-logo { max-width: 320px; margin: 0 auto 10px; }
.contact-logo-fallback { font-size: 1.4rem; font-weight: 900; color: var(--navy-deep); margin-bottom: 10px; }
.contact-link { display: block; font-size: .8rem; color: var(--frost-2); text-decoration: underline; margin-bottom: 26px; word-break: break-all; }

.contact-message {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy-deep);
  margin-bottom: 8px;
  line-height: 1.85;
}
.contact-campaign {
  font-size: 1.85rem;
  font-weight: 900;
  color: var(--red-2);
  letter-spacing: .04em;
  line-height: 1.6;
  margin-bottom: 24px;
}
.contact-cta-wrap { margin: 0 auto 24px; }

.contact-info {
  display: grid;
  gap: 10px;
  max-width: 440px;
  margin: 0 auto;
  padding-top: 18px;
  border-top: 1px dashed rgba(94, 137, 189, .5);
}
.info-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  align-items: center;
  font-size: 1rem;
}
.info-row dt { font-weight: 900; color: var(--navy-deep); text-align: left; }
.info-row dd { text-align: left; font-weight: 700; color: var(--navy-deep); }
.tel-link { color: var(--frost-3); font-size: 1.15rem; font-weight: 900; letter-spacing: .02em; }
.mail-link { color: var(--frost-2); font-weight: 700; }
.tel-link, .mail-link { cursor: default; }
.tel-link:hover, .mail-link:hover { text-decoration: underline; }

/* ---------- フッター（著作権のみ） ---------- */
.site-footer {
  background: var(--navy-deep);
  padding: 22px 16px;
  text-align: center;
}
.footer-copy {
  font-size: .76rem;
  color: rgba(255, 255, 255, .75);
  letter-spacing: .04em;
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 1000px) {
  .topic-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .header-nav { display: none; }   /* メニューはPCのみ常に表示、768以下は非表示 */
}
@media (max-width: 860px) {
  .plan-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}
@media (max-width: 760px) {
  .section { padding: 56px 0; }
  .hero { padding: 64px 0 56px; }
  .overview-row { grid-template-columns: 1fr; }
  .overview-row dt { padding: 14px 22px; }
  .overview-row dd { padding: 16px 22px; }
  .vflow-item { grid-template-columns: 70px 1fr; gap: 14px; padding: 18px 18px; }
}
@media (max-width: 560px) {
  .duration-number .big-num { font-size: 3.2rem; }
  .campaign-price .big-yen-big { font-size: 2.4rem; }
}